EP2009175A2 - Solution for decolourising and/or bleaching laundry - Google Patents
Solution for decolourising and/or bleaching laundry Download PDFInfo
- Publication number
- EP2009175A2 EP2009175A2 EP08010663A EP08010663A EP2009175A2 EP 2009175 A2 EP2009175 A2 EP 2009175A2 EP 08010663 A EP08010663 A EP 08010663A EP 08010663 A EP08010663 A EP 08010663A EP 2009175 A2 EP2009175 A2 EP 2009175A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixture according
- sodium
- agent
- ammonium
- disulfite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004061 bleaching Methods 0.000 title 1
- 230000003226 decolorizating effect Effects 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract description 89
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000007844 bleaching agent Substances 0.000 claims abstract description 14
- 238000005406 washing Methods 0.000 claims abstract description 12
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 claims abstract description 7
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 claims abstract description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 26
- 238000004042 decolorization Methods 0.000 claims description 26
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 21
- 239000003513 alkali Substances 0.000 claims description 14
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 14
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 14
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 13
- 235000017550 sodium carbonate Nutrition 0.000 claims description 13
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 11
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 11
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 11
- 150000003856 quaternary ammonium compounds Chemical class 0.000 claims description 10
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical group [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000004606 Fillers/Extenders Substances 0.000 claims description 7
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 claims description 7
- 235000010262 sodium metabisulphite Nutrition 0.000 claims description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000003112 inhibitor Substances 0.000 claims description 6
- 239000003205 fragrance Substances 0.000 claims description 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 4
- 239000001099 ammonium carbonate Substances 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 3
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 3
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 235000002639 sodium chloride Nutrition 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 2
- 239000005695 Ammonium acetate Substances 0.000 claims description 2
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 2
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 claims description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 2
- 235000019257 ammonium acetate Nutrition 0.000 claims description 2
- 229940043376 ammonium acetate Drugs 0.000 claims description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 2
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 2
- 235000019270 ammonium chloride Nutrition 0.000 claims description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 2
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 2
- HAHLURFXZPKIQK-UHFFFAOYSA-N diazanium;sulfinato sulfite Chemical compound [NH4+].[NH4+].[O-]S(=O)OS([O-])=O HAHLURFXZPKIQK-UHFFFAOYSA-N 0.000 claims description 2
- 239000011736 potassium bicarbonate Substances 0.000 claims description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 235000011181 potassium carbonates Nutrition 0.000 claims description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 2
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 claims description 2
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 2
- 239000001488 sodium phosphate Substances 0.000 claims description 2
- 229910000031 sodium sesquicarbonate Inorganic materials 0.000 claims description 2
- 235000018341 sodium sesquicarbonate Nutrition 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 2
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 2
- WCTAGTRAWPDFQO-UHFFFAOYSA-K trisodium;hydrogen carbonate;carbonate Chemical compound [Na+].[Na+].[Na+].OC([O-])=O.[O-]C([O-])=O WCTAGTRAWPDFQO-UHFFFAOYSA-K 0.000 claims description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 14
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 13
- 239000004744 fabric Substances 0.000 description 9
- 229920000742 Cotton Polymers 0.000 description 8
- RYYXDZDBXNUPOG-UHFFFAOYSA-N 4,5,6,7-tetrahydro-1,3-benzothiazole-2,6-diamine;dihydrochloride Chemical compound Cl.Cl.C1C(N)CCC2=C1SC(N)=N2 RYYXDZDBXNUPOG-UHFFFAOYSA-N 0.000 description 7
- -1 ammonium cations Chemical class 0.000 description 7
- KMGARVOVYXNAOF-UHFFFAOYSA-N benzpiperylone Chemical compound C1CN(C)CCC1N1C(=O)C(CC=2C=CC=CC=2)=C(C=2C=CC=CC=2)N1 KMGARVOVYXNAOF-UHFFFAOYSA-N 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 6
- CDOSHBSSFJOMGT-UHFFFAOYSA-N linalool Chemical compound CC(C)=CCCC(C)(O)C=C CDOSHBSSFJOMGT-UHFFFAOYSA-N 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 239000004753 textile Substances 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 229940027983 antiseptic and disinfectant quaternary ammonium compound Drugs 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 229920002125 Sokalan® Polymers 0.000 description 4
- REZZEXDLIUJMMS-UHFFFAOYSA-M dimethyldioctadecylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC REZZEXDLIUJMMS-UHFFFAOYSA-M 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 235000019645 odor Nutrition 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 235000013809 polyvinylpolypyrrolidone Nutrition 0.000 description 4
- 229920000523 polyvinylpolypyrrolidone Polymers 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229920000768 polyamine Polymers 0.000 description 3
- SFVFIFLLYFPGHH-UHFFFAOYSA-M stearalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SFVFIFLLYFPGHH-UHFFFAOYSA-M 0.000 description 3
- 239000001490 (3R)-3,7-dimethylocta-1,6-dien-3-ol Substances 0.000 description 2
- WUDPQVKPDXSIML-UHFFFAOYSA-N (6-chloro-5-hydroxy-1,2,3,4-tetrahydronaphthalen-1-yl)-dimethylazanium;iodide Chemical compound [I-].ClC1=CC=C2C([NH+](C)C)CCCC2=C1O WUDPQVKPDXSIML-UHFFFAOYSA-N 0.000 description 2
- CDOSHBSSFJOMGT-JTQLQIEISA-N (R)-linalool Natural products CC(C)=CCC[C@@](C)(O)C=C CDOSHBSSFJOMGT-JTQLQIEISA-N 0.000 description 2
- BYEUGKXDVZGBLP-UHFFFAOYSA-M 1-ethenylazepan-2-one;1-ethenyl-3-methylimidazol-3-ium;1-ethenylpyrrolidin-2-one;methyl sulfate Chemical compound COS([O-])(=O)=O.C[N+]=1C=CN(C=C)C=1.C=CN1CCCC1=O.C=CN1CCCCCC1=O BYEUGKXDVZGBLP-UHFFFAOYSA-M 0.000 description 2
- OSSNTDFYBPYIEC-UHFFFAOYSA-N 1-ethenylimidazole Chemical compound C=CN1C=CN=C1 OSSNTDFYBPYIEC-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 229930006000 Sucrose Natural products 0.000 description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- YSJGOMATDFSEED-UHFFFAOYSA-M behentrimonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCCCCCC[N+](C)(C)C YSJGOMATDFSEED-UHFFFAOYSA-M 0.000 description 2
- NUPDFKWZQURWCC-UHFFFAOYSA-M benzyl-(2-hydroxyethyl)-dimethylazanium;chloride Chemical compound [Cl-].OCC[N+](C)(C)CC1=CC=CC=C1 NUPDFKWZQURWCC-UHFFFAOYSA-M 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- SGZVXLFVBKDMJH-UHFFFAOYSA-M dihydrogen phosphate;hexadecyl-(2-hydroxyethyl)-dimethylazanium Chemical compound OP(O)([O-])=O.CCCCCCCCCCCCCCCC[N+](C)(C)CCO SGZVXLFVBKDMJH-UHFFFAOYSA-M 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 229930007744 linalool Natural products 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 2
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- ILVXOBCQQYKLDS-UHFFFAOYSA-N pyridine N-oxide Chemical compound [O-][N+]1=CC=CC=C1 ILVXOBCQQYKLDS-UHFFFAOYSA-N 0.000 description 2
- 229960004793 sucrose Drugs 0.000 description 2
- 235000000346 sugar Nutrition 0.000 description 2
- 150000008163 sugars Chemical class 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UCTWMZQNUQWSLP-VIFPVBQESA-N (R)-adrenaline Chemical compound CNC[C@H](O)C1=CC=C(O)C(O)=C1 UCTWMZQNUQWSLP-VIFPVBQESA-N 0.000 description 1
- QLAJNZSPVITUCQ-UHFFFAOYSA-N 1,3,2-dioxathietane 2,2-dioxide Chemical compound O=S1(=O)OCO1 QLAJNZSPVITUCQ-UHFFFAOYSA-N 0.000 description 1
- LQIAZOCLNBBZQK-UHFFFAOYSA-N 1-(1,2-Diphosphanylethyl)pyrrolidin-2-one Chemical compound PCC(P)N1CCCC1=O LQIAZOCLNBBZQK-UHFFFAOYSA-N 0.000 description 1
- BZVFPIHTRLNAQA-UHFFFAOYSA-M 1-ethenyl-3-methylimidazol-3-ium;methyl sulfate Chemical compound COS([O-])(=O)=O.C[N+]=1C=CN(C=C)C=1 BZVFPIHTRLNAQA-UHFFFAOYSA-M 0.000 description 1
- XUJLWPFSUCHPQL-UHFFFAOYSA-N 11-methyldodecan-1-ol Chemical compound CC(C)CCCCCCCCCCO XUJLWPFSUCHPQL-UHFFFAOYSA-N 0.000 description 1
- IXAZNYYEGLSHOS-UHFFFAOYSA-N 2-aminoethanol;phosphoric acid Chemical compound NCCO.OP(O)(O)=O IXAZNYYEGLSHOS-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
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- 102100027530 Iron-sulfur cluster co-chaperone protein HscB Human genes 0.000 description 1
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- YIQKLZYTHXTDDT-UHFFFAOYSA-H Sirius red F3B Chemical compound C1=CC(=CC=C1N=NC2=CC(=C(C=C2)N=NC3=C(C=C4C=C(C=CC4=C3[O-])NC(=O)NC5=CC6=CC(=C(C(=C6C=C5)[O-])N=NC7=C(C=C(C=C7)N=NC8=CC=C(C=C8)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)O)S(=O)(=O)O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+] YIQKLZYTHXTDDT-UHFFFAOYSA-H 0.000 description 1
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- 229910052783 alkali metal Inorganic materials 0.000 description 1
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- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 125000005211 alkyl trimethyl ammonium group Chemical group 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
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- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
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- 150000003841 chloride salts Chemical class 0.000 description 1
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- 238000010411 cooking Methods 0.000 description 1
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- 238000000354 decomposition reaction Methods 0.000 description 1
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- 235000014113 dietary fatty acids Nutrition 0.000 description 1
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- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 1
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- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- FYUWIEKAVLOHSE-UHFFFAOYSA-N ethenyl acetate;1-ethenylpyrrolidin-2-one Chemical compound CC(=O)OC=C.C=CN1CCCC1=O FYUWIEKAVLOHSE-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229940053957 hydroxyethyl cetyldimonium phosphate Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- WXQMFIJLJLLQIS-UHFFFAOYSA-N reactive blue 21 Chemical compound [Cu+2].C1=CC(S(=O)(=O)CCO)=CC=C1NS(=O)(=O)C1=CC=C2C([N-]3)=NC(C=4C5=CC=C(C=4)S(O)(=O)=O)=NC5=NC(C=4C5=CC=C(C=4)S(O)(=O)=O)=NC5=NC([N-]4)=C(C=C(C=C5)S(O)(=O)=O)C5=C4N=C3C2=C1 WXQMFIJLJLLQIS-UHFFFAOYSA-N 0.000 description 1
- 239000000985 reactive dye Substances 0.000 description 1
- 238000009895 reductive bleaching Methods 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010378 sodium ascorbate Nutrition 0.000 description 1
- PPASLZSBLFJQEF-RKJRWTFHSA-M sodium ascorbate Substances [Na+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RKJRWTFHSA-M 0.000 description 1
- 229960005055 sodium ascorbate Drugs 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- CSABAZBYIWDIDE-UHFFFAOYSA-N sulfino hydrogen sulfite Chemical compound OS(=O)OS(O)=O CSABAZBYIWDIDE-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- CEYYIKYYFSTQRU-UHFFFAOYSA-M trimethyl(tetradecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCC[N+](C)(C)C CEYYIKYYFSTQRU-UHFFFAOYSA-M 0.000 description 1
- 239000010981 turquoise Substances 0.000 description 1
- 229940119423 ultracare Drugs 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0042—Reducing agents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/395—Bleaching agents
- C11D3/3953—Inorganic bleaching agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/30—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using reducing agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/13—Fugitive dyeing or stripping dyes
- D06P5/134—Fugitive dyeing or stripping dyes with reductants
Definitions
- the present invention relates to a mixture for decolorization and / or degumming of items of laundry, in particular for household purposes.
- Detoxifiers for the preparation of generic mixtures are known from the prior art.
- DE 38 31 098 C2 is a drug combination for means for decolorization, removal of false coloration and lightening of dyed textiles known which contains thiourea dioxide and two each powdery free-flowing, packed until used in a container separated from each other and immediately before use to form a liquor together in an aqueous solution to be converted components, wherein the one component forms the thiourea dioxide and the other component consists of a concentration in a certain concentration ratio to the concentration of thiourea dioxide concentration of a reacting in aqueous solution alkaline substance.
- the alkaline substance is in particular sodium carbonate.
- EP 0 615 018 A1 discloses a Textilentfärber, especially for household purposes, which forms an alkaline decolorizing liquor for decolorizing textiles in aqueous solution.
- the Textilentfärber disclosed therein is characterized by a storable powder mixture also with thiourea dioxide as decolorizing active ingredient, further with sodium carbonate or other water-soluble carbonate or bicarbonate of the alkali metals as alkali carriers and with a defoamer for discharging oxygen from the decolorizing liquor or with a deflagration in the decolorizing liquor ,
- the decolorizer mixture preferably contains from 3% to 25% by weight of thiourea dioxide.
- the antifoam or anti-foaming agent may be a silicone, siloxane or else a long-chain alcohol, a highly polymeric glycol, a fatty acid polyglycol ester or a trialkylmethylamine.
- decolorizers based on sodium dithionite z. B. the DE 195 03 480 A1 a method for decolorizing textile materials and a decolorizer suitable therefor, said decolorizer being preferably composed of a reductive bleaching agent in an amount of from 20% to 50% by weight, an alkali donor in an amount of from 35% to 75% by weight, an extender in an amount of 0% to 45% by weight and an optical brightener in an amount of 0% to 3% by weight.
- Sodium dithionite is used as the reductive bleach, and the alkaline dispenser comprises sodium bicarbonate and / or sodium carbonate.
- mixtures with 50% by weight of sodium dithionite and 50% by weight of sodium carbonate are mixtures which always contain sodium bicarbonate in addition to sodium carbonate.
- sodium carbonate and sodium bicarbonate may be present in approximately equal amounts, but it is also possible to use sodium bicarbonate in excess in relation to the sodium carbonate.
- a disadvantage of the teaching of DE 195 03 480 A1 is that in the mixtures disclosed there with sodium bicarbonate due to a reaction with the sodium dithionite it can come in individual cases to self-heating of the mixture, so that these mixtures are not marketable.
- the mixture disclosed therein, which does not contain sodium hydrogencarbonate has a relatively high pH, which is strongly alkaline.
- the blue speckles which are also known in the case of discolourizers based on thiourea dioxide occur.
- a mixture for decolorizing and / or dehumidifying laundry articles comprising from about 5 g / l to about 30 g / l of at least one dithionite-containing bleach and from about 1 g / l to about 25 g / l of at least one disulfide-containing agent.
- a disulfite-containing agent By using a disulfite-containing agent, the pH of the mixture according to the invention, unlike those known from the prior art mixtures, is shifted into the slightly acidic range. It is advantageously avoided that sulfur dioxide is formed, which usually forms in the acidic range from the decomposition of the dithionite-containing bleaching agent. In addition, advantageously the formation of blue speckles on the laundry is avoided.
- a number of the mixtures according to the invention of sodium dithionite, sodium disulfite and / or sodium carbonate and / or sodium bicarbonate do not pose the risk of self-heating.
- the mixture comprises the dithionite-containing bleaching agent in an amount of about 5 g / l to about 20 g / l.
- a dithionite bleaching agent in an amount of about 40 g to about 250 g is used.
- the bleach is preferably sodium dithionite, but other dithionitance compounds can be used, such as ammonium compounds or other alkali metal compounds.
- the mixture according to the invention comprises the disulphite-containing agent in an amount of from about 2 g / l to about 10 g / l, corresponding to the abovementioned commercial liquor levels in an amount of from about 16 g to about 125 g of the disulphide-containing agent.
- the disulfite-containing agent is preferably selected from a group comprising sodium disulfite, ammonium disulfite and / or potassium disulfite, with sodium disulfite being particularly preferred.
- the mixture according to the invention preferably further comprises at least one alkali agent.
- the alkali agent is advantageously selected from a group comprising sodium carbonate, sodium bicarbonate, ammonium carbonate, ammonium bicarbonate, potassium carbonate, potassium bicarbonate, trisodium phosphate, sodium hydroxide and / or sodium sesquicarbonate.
- the added alkali agent causes the pH of the liquor to drop to a value below 4 due to the pH reduction during the decolorization process, thus avoiding possible corrosion damage to a washing machine used for decolorization.
- the alkali agent is used in a concentration which is about the same size as the concentration of the dithionite-containing agent.
- a ratio of the concentrations of alkali agent to dithionit restroomm agent in a range of about 2: 1 to 1: 2 leads to good Entkärberoughn.
- the amount of the alkali agent used is preferably in a range of about 2 g / l to about 20 g / l.
- sodium bicarbonate and / or sodium carbonate is used as the alkali agent.
- the pH of an aqueous solution of the mixture according to the invention is advantageously before decolorization in a range from about 5 to about 9, more preferably in a range from about 6 to about 8.5.
- the aqueous solution of the mixture according to the invention has a pH greater than about 4.5, preferably a pH in the range of about 5 to about 6 or 6.5.
- this acidic pH of the aqueous solution of the mixture according to the invention after decolorization it is ensured, in particular with the addition of blue-spot suppressors, that the formation of blue speckles on the items to be decolorized / de-scrubbed is avoided.
- the mixture according to the invention also comprises extenders, fragrances, odor inhibitors, sulfite scavengers, surfactants of any kind, corrosion inhibitors and / or blue spot suppressors.
- an extender is preferably selected from a group comprising sodium sulfate, ammonium sulfate, sodium chloride, ammonium chloride, ammonium acetate and / or diammonium hydrogen phosphate.
- the extender may be present in concentrations of up to 30 g / l in the aqueous mixture. It is preferred to use those extenders which have ammonium cations. Particularly preferred as the diluent sodium sulfate and / or ammonium sulfate.
- Fragrances and odor inhibitors may be present alone or in mixtures in concentrations ranging from 0.001 g / l to about 0.6 g / l in the mixture according to the invention.
- Preferred fragrances are the fragrance oils known from the prior art.
- Particularly preferred linalool (3,7 dimethyl-1,6-octadien-3-ol) can be used, because this is able to mark the unpleasant odors occurring during the Entfärbevorgang based on sulfur-containing odor and thus to increase the effect of other perfumes .
- Sulfitflinder can be used in particular acetone, formaldehyde, reducible sugars, such as glucose and fructose, and non-reducible sugars such.
- B. cane sugar. It has been found that particularly suitable as sulfite scavengers are cane sugar, sodium ascorbate and / or sodium thiosulfate, since these least affect the decolorization performance of the mixture according to the invention.
- the mixture according to the invention particularly preferably comprises at least one blue spot suppressor selected from a group comprising at least one quaternary ammonium compound and / or at least one polyvinylpyrrolidone.
- Blau Vietnamese bansuppressoren in the context of the present invention are substances or mixtures of substances to understand that can help prevent the undesirable occurrence of blue dots or speckles continue to suppress or reduce their number in a significant manner.
- polyvinylpyrrolidone is understood as meaning both copolymers and block copolymers and random-block copolymers, but also polyvinylpolypyrrolidones (PVPP, short name: crospovidone).
- PVPP polyvinylpolypyrrolidones
- Crospovidones are insoluble, cross-linked polyvinylpyrrolidones which form on heating vinylpyrrolidone with alkalis or divinyl compounds as so-called "popcorn polymers". The use of such polyvinylpyrrolidone derivatives is particularly preferred for the purposes of the present invention.
- blue spot suppressors comprising at least one quaternary ammonium compound and at least one polyvinylpyrrolidone.
- Preferred blue dot suppressors according to the present invention are shown in Table 1 below. Table 1: Blue spot suppressors Surname Manufacturer Synonym (s) / Altemative name chemical formula CAS-No.
- Chromabond S 403 ISP GLOBAL TECHNOLOGIES (GERMAN LAND) GMBH Sicil-Hoffmann-Str. 1 a 50996 Cologne Polyvinyl pyridine-N-oxide 58984-27-3 Chromabond S 400 ISP Polyvinyl pyridine-N-oxide 58984-27-3 Sandopur DK fl genamine CTAC Clariant Fatty alcohol polyglycol ether, polyamine derivative cetyltrimethylammonium chloride - 112-02-7 Duralkan RN Thor GmbH Landwehr-str.
- the blue dot suppressor in selecting a quaternary ammonium compound selected from a group comprising dimethyl-substituted quaternary ammonium compounds, more preferably being dialkyl-dimethyl and / or monoalkyl-monobenzyl-dimethyl-substituted quaternary ammonium compounds.
- the alkyl radical of the quaternary ammonium compound preferably consists of linear and / or branched carbon chains having 4 to 20 carbon atoms.
- the blue spot suppressor is preferably present as the chloride salt.
- the mixture according to the invention may comprise other customary substances which are also added to detergents.
- the Entfärbermischung z. B. optical brightener since they do not adversely lead to the formation of blue speckles due to the provision of a Blau Vietnamesesuppressors in Entfärbermischung invention.
- enzymes, foam inhibitors, plasticizers and other auxiliaries may be added to the decolorizer mixture.
- a mixture comprising about 10 g / l to about 20 g / l sodium dithionite as bleach, about 2 g / l to about 10 g / l sodium disulfite as disulfit instance and about 2 g / l to about 10 g / l sodium carbonate and / or sodium bicarbonate as the alkali agent. More preferably, such a mixture may comprise a blue spot suppressor selected from the group of polyvinylpyrrolidones and / or quaternary ammonium compounds in an amount of from 0.1 g / l to about 0.3 g / l.
- the present invention relates to a method for decolorization and / or degasification of laundry, in particular for household purposes, wherein a mixture according to the invention placed in a washing machine and then carried out at a temperature of at least about 30 ° C, the decolorization over a period of at least 10 seconds becomes.
- a temperature of at least about 30 ° C the decolorization over a period of at least 10 seconds becomes.
- the decolorization proceeds faster.
- the decolorization process will be completed in about 10 to 20 seconds
- a temperature in a range of about 40 ° C to about 50 ° C the decolorization process will be practically completed after about 2 to 3 minutes.
- the mixture according to the invention can also be used such that the decolorization is not carried out in a washing machine but, for example, in a bucket, in which case the mixture according to the invention is first dissolved in water at a specific temperature and then the items to be decolored are placed in the container ,
- a particular advantage of the mixture according to the invention is that it can be entered directly into the drum at the beginning of the washing process in a washing machine or in the usual filling. To achieve optimum decolorization performance, it is therefore not necessary, as known from the prior art, to add a decolorizer mixture only after heating the water about 10 to 15 minutes after the start of the washing program of the washing machine.
- the mixture according to the invention is therefore characterized by an extremely simple, customary detergents adapted handling.
- the decolorization and degumming performances of various blends of the invention were tested for cotton fabric.
- the usual cotton fabric with a Size of 1.5 x 2.2 m was purchased from the company Setex-Textil-GmbH, Franken Avenue 15, 46499 Hamminkeln, Germany, wherein the cotton fabric was bleached with an optical brightener. This corresponds approximately to a fabric, as is commonly used for bedsheets.
- the cotton fabric was dyed with the following true colors based on reactive dyes (A - F) or direct colors (G - I) (as solid color or 1/100 color tone) (the following data refer to a sheet of 1.5 ⁇ 2 , 2 m in full-tone coloring, for a 1/100 tone coloring, the quantities must be reduced accordingly): A.
- the aforementioned dyes were purchased from Dystar Textile Colors Gmbh & Co. KG, Cologne.
- the mixtures B, F and I are used in a washing machine AEG ⁇ ko-Lavamat 85739, the mixtures A, D, G in a washing machine Miele Novotronic W 531, the mixtures C, E and H in a washing machine AEG ⁇ ko-Lavamat 70529 in a fleet quantity of 12.5 liters and a temperature of 30 ° C using the aforementioned color mixtures A - each dyed cotton fabric pieces, the amount of material used was about 600 g.
- As a fixer for mixtures A to F 50 g of sodium metasilicate and 950 g of sodium chloride were used for each of the dyeings carried out.
- the thus dyed cotton fabric in the form of about A4-sized sections were subsequently decolorized with different mixtures according to the invention.
- the bagged mixtures of the present invention were added to the AEG Eco Lavamat Euroline washer just prior to the start of the wash into the drum in an amount of 250 grams, with the exception of Mix 5, which was added in a bag weighing approximately 200 grams ,
- In addition were still considered fiber white cotton sheets in an amount of about 1800 g.
- the DIN A4-sized test pieces were added in an amount of about 200 g, corresponding to about 18 pieces. The fibers were added only to obtain realistic loading conditions and thus practical test conditions.
- the surfactant has CAS No .: 69011-36-5 and was obtained from Sasol, Paul-Baumann-Str. 1, 45764 Marl.
- All mixtures 1 to 7 are characterized by a particularly good Entfärbe impression in the "immediate addition” directly at the beginning of the Entfärbevorgangs in the washing machine. Furthermore, they are characterized by the fact that the formation of blue speckles avoided is even as good as complete in the mixtures 3, 5 and 7.
- the pH of all mixtures 1 to 7 after decolorization ranged from 5 to 6, whereas the pH at the beginning of the decolorizing liquor was about 7.5 to 8, with the exception of mixtures 1 and 2, in which pH at the beginning of the decolorizing process in the liquor was about 6-6.5. Due to the slightly acidic liquor after decolorization, both the decolorization line and the synergistic effect with the addition of blue spot suppressants can surprisingly be further increased.
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- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
Description
Die vorliegende Erfindung betrifft eine Mischung zum Entfärben und/oder Entgrauen von Wäschestücken, insbesondere zu Haushaltszwecken.The present invention relates to a mixture for decolorization and / or degumming of items of laundry, in particular for household purposes.
Entfärber zur Herstellung gattungsgemäßer Mischungen sind aus dem Stand der Technik bekannt. Aus der
Nachteilig an diesen aus dem Stand der Technik bekannten Entfärbermischungen auf der Basis von Thioharnstoffdioxid, auch bekannt unter dem Namen Formamidinsulfinsäure, ist, dass es bei diesen Entfärbermischungen zur Bildung von in aller Regel blaufarbigen Punkten auf dem zu entfärbenden Textil kommen kann. Diese blauen Punkte dürften wohl daher rühren, dass insbesondere bei Zugabe optischer Aufheller diese ungleichmäßig auf dem zu entfärbenden Gewebe verteilt werden, und sich durch Reaktion mit dem reduktiven Bleichmittel in alkalischer Lösung ein blauer Farbstoff bildet. Derartige blaue Sprenkel bilden sich sowohl auf neuen als auch auf gebrauchten Textilien, insbesondere bei solchen auf Basis von Kunststofffasern oder sonstigen Geweben wie Baumwollgeweben, einschließlich Mischgeweben.A disadvantage of these known from the prior art Entfärbermisungen on the basis of thiourea dioxide, also known under the name formamidinesulfinic, is that it can come in these Entfärbermischungen to the formation of usually blue-colored dots on the textile to be decolored. These blue dots are probably due to the fact that, especially when optical brighteners are added, they are distributed unevenly on the tissue to be decolored, and a blue dye forms on reaction with the reductive bleach in alkaline solution. Such blue speckles Formed on both new and used textiles, especially those based on plastic fibers or other tissues such as cotton fabrics, including blended fabrics.
Des Weiteren sind aus dem Stand der Technik bekannt Entfärber auf der Basis von Natriumdithionit. So offenbart z. B. die
Es ist daher Aufgabe der vorliegenden Erfindung, eine Mischung zum Entfärben und/oder Entgrauen von Wäschestücken, insbesondere zu Haushaltzwecken, zur Verfügung zu stellen, mit welcher die aus dem Stand der Technik bekannten Entfäbermischungen verbessert werden, und diese insbesondere auch praxisnah anwendbar sind.It is therefore an object of the present invention to provide a mixture for decolorization and / or degumming of items of laundry, in particular for household purposes, with which the Entfäbermischungen known from the prior art are improved, and these are also applicable in practice.
Diese Aufgabe wird gelöst durch eine Mischung zum Entfärben und/oder Entgrauen von Wäschestücken umfassend etwa 5 g/l bis etwa 30 g/l mindestens eines dithionithaltigen Bleichmittels und etwa 1 g/l bis etwa 25 g/l mindestens eines disulfithaltigen Mittels. Durch den Einsatz eines disulfithaltigen Mittels wird der pH-Wert der erfindungsgemäßen Mischung im Unterschied zu denjenigen aus dem Stand der Technik bekannten Mischungen bis in den leicht sauren Bereich verschoben. Dabei wird vorteilhafterweise vermieden, dass Schwefeldioxid gebildet wird, welches sich üblicherweise im sauren Bereich aus der Zersetzung des dithionithaltigen Bleichmittels bildet. Darüber hinaus wird vorteilhafterweise die Bildung blauer Sprenkel auf den Wäschestücken vermieden. Schließlich weisen eine Reihe der erfindungsgemäßen Mischungen aus Natriumdithionit, Natriumdisulfit und/oder Natriumcarbonat und/oder Natriumhydrogencarbonat nicht die Gefahr einer Selbsterhitzung auf.This object is achieved by a mixture for decolorizing and / or dehumidifying laundry articles comprising from about 5 g / l to about 30 g / l of at least one dithionite-containing bleach and from about 1 g / l to about 25 g / l of at least one disulfide-containing agent. By using a disulfite-containing agent, the pH of the mixture according to the invention, unlike those known from the prior art mixtures, is shifted into the slightly acidic range. It is advantageously avoided that sulfur dioxide is formed, which usually forms in the acidic range from the decomposition of the dithionite-containing bleaching agent. In addition, advantageously the formation of blue speckles on the laundry is avoided. Finally, a number of the mixtures according to the invention of sodium dithionite, sodium disulfite and / or sodium carbonate and / or sodium bicarbonate do not pose the risk of self-heating.
Vorteilhafterweise umfasst die Mischung das dithionithaltige Bleichmittel in einer Menge von etwa 5 g/l bis etwa 20 g/l. Dies bedeutet, dass bei Flottenvolumen von 8 bis 12,5 I, welche marktüblich sind, ein dithionithaltiges Bleichmittel in einer Menge von etwa 40 g bis etwa 250 g eingesetzt wird. Das Bleichmittel ist dabei bevorzugt Natriumdithionit, es können jedoch auch andere dithionithaltige Verbindungen eingesetzt werden, wie beispielsweise Ammoniumverbindungen oder sonstige Alkalimetallverbindungen.Advantageously, the mixture comprises the dithionite-containing bleaching agent in an amount of about 5 g / l to about 20 g / l. This means that at liquor volumes of 8 to 12.5 l, which are commercially available, a dithionite bleaching agent in an amount of about 40 g to about 250 g is used. The bleach is preferably sodium dithionite, but other dithionithaltige compounds can be used, such as ammonium compounds or other alkali metal compounds.
Vorteilhafterweise weist die erfindungsgemäße Mischung das disulfithaltige Mittel in einer Menge von etwa 2 g/l bis etwa 10 g/l auf, entsprechend bei den vorgenannten marktüblichen Flottenmengen in einer Menge von etwa 16 g bis etwa 125 g des disulfithaltigen Mittels. Das disulfithaltige Mittel ist vorzugsweise ausgewählt aus einer Gruppe umfassend Natriumdisulfit, Ammoniumdisulfit und/oder Kaliumdisulfit, wobei besonders bevorzugt Natriumdisulfit ist.Advantageously, the mixture according to the invention comprises the disulphite-containing agent in an amount of from about 2 g / l to about 10 g / l, corresponding to the abovementioned commercial liquor levels in an amount of from about 16 g to about 125 g of the disulphide-containing agent. The disulfite-containing agent is preferably selected from a group comprising sodium disulfite, ammonium disulfite and / or potassium disulfite, with sodium disulfite being particularly preferred.
Die erfindungsgemäße Mischung umfasst vorzugsweise weiterhin mindestens ein Alkalimittel. Das Alkalimittel ist dabei vorteilhafterweise gewählt aus einer Gruppe umfassend Natriumcarbonat, Natriumhydrogencarbonat, Ammoniumcarbonat, Ammoniumhydrogencarbonat, Kaliumcarbonat, Kaliumhydrogencarbonat, Trinatriumphosphat, Natriumhydroxid und/oder Natriumsesquicarbonat. Das zugesetzte Alkalimittel bewirkt, dass aufgrund der pH-Wert-Minderung beim Entfärbevorgang der pH-Wert der Flotte auf einen Wert unter 4 absinkt, und so mögliche Korrosionsschäden an einer für die Entfärbung eingesetzten Waschmaschine vermieden werden. Vorteilhafterweise wird dabei das Alkalimittel in einer Konzentration eingesetzt, welche etwa gleich groß ist wie die Konzentration an dem dithionithaltigen Mittel. Aber auch ein Verhältnis der Konzentrationen an Alkalimittel zu dithionithaltigem Mittel in einem Bereich von etwa 2:1 zu 1:2 führt zu guten Entfärbeergebnissen. Die Menge des eingesetzten Alkalimittels liegt bevorzugt in einem Bereich von etwa 2 g/l bis etwa 20 g/l. Vorteilhafterweise wird dabei Natriumhydrogencarbonat und/oder Natriumcarbonat als Alkalimittel eingesetzt. Der pH-Wert einer wässrigen Lösung der erfindungemäßen Mischung liegt dabei vorteilhafterweise vor Entfärbung in einem Bereich von etwa 5 bis etwa 9, weiter bevorzugt in einem Bereich von etwa 6 bis etwa 8,5. Nach dem Entfärben weist die wässrige Lösung der erfindungsgemäßen Mischung einen pH-Wert von größer etwa 4,5, bevorzugt einen pH-Wert in einem Bereich von etwa 5 bis etwa 6 oder 6,5 auf. Durch diesen im sauren Bereich liegenden pH-Wert der wässrigen Lösung der erfindungsgemäßen Mischung nach Entfärbung wird, insbesondere bei Zusatz von Blaupunktsuppressoren, sichergestellt, dass die Bildung blauer Sprenkel auf den zu entfärbenden/zu entgrauenden Wäschestücken vermieden wird.The mixture according to the invention preferably further comprises at least one alkali agent. The alkali agent is advantageously selected from a group comprising sodium carbonate, sodium bicarbonate, ammonium carbonate, ammonium bicarbonate, potassium carbonate, potassium bicarbonate, trisodium phosphate, sodium hydroxide and / or sodium sesquicarbonate. The added alkali agent causes the pH of the liquor to drop to a value below 4 due to the pH reduction during the decolorization process, thus avoiding possible corrosion damage to a washing machine used for decolorization. Advantageously, the alkali agent is used in a concentration which is about the same size as the concentration of the dithionite-containing agent. But also a ratio of the concentrations of alkali agent to dithionithaltigem agent in a range of about 2: 1 to 1: 2 leads to good Entkärbeergebnissen. The amount of the alkali agent used is preferably in a range of about 2 g / l to about 20 g / l. Advantageously, sodium bicarbonate and / or sodium carbonate is used as the alkali agent. The pH of an aqueous solution of the mixture according to the invention is advantageously before decolorization in a range from about 5 to about 9, more preferably in a range from about 6 to about 8.5. After decolorizing, the aqueous solution of the mixture according to the invention has a pH greater than about 4.5, preferably a pH in the range of about 5 to about 6 or 6.5. As a result of this acidic pH of the aqueous solution of the mixture according to the invention after decolorization, it is ensured, in particular with the addition of blue-spot suppressors, that the formation of blue speckles on the items to be decolorized / de-scrubbed is avoided.
Die erfindungsgemäße Mischung umfasst weiterhin Streckmittel, Duftmittel, Geruchsinhibitoren, Sulfitfänger, Tenside jeglicher Art, Korrosionsinhibitoren und/oder Blaupunktsuppressoren.The mixture according to the invention also comprises extenders, fragrances, odor inhibitors, sulfite scavengers, surfactants of any kind, corrosion inhibitors and / or blue spot suppressors.
Sofern ein Streckmittel eingesetzt wird, wird dieses vorzugsweise ausgewählt aus einer Gruppe umfassend Natriumsulfat, Ammoniumsulfat, Natriumchlorid, Ammoniumchlorid, Ammoniumacetat und/oder Diammoniumhydrogenphosphat. Das Streckmittel kann dabei in Konzentrationen bis zu 30 g/l in der wässrigen Mischung vorliegen. Es werden bevorzugt solche Streckmittel eingesetzt, welche Ammonium-Kationen aufweisen. Besonders bevorzugt ist als Streckmittel Natriumsulfat und/oder Ammoniumsulfat. Duftmittel und Geruchsinhibitoren können allein oder in Mischungen in Konzentrationen in einem Bereich von 0,001 g/l bis etwa 0,6 g/l in der erfindungsgemäßen Mischung enthalten sein. Als Duftmittel sind dabei bevorzugt ausgewählt die aus dem Stand der Technik bekannten Duftöle. Besonders bevorzugt kann Linalool (3,7 Dimethyl-1,6-octadien-3-ol) eingesetzt werden, weil dieses in der Lage ist, beim Entfärbevorgang auftretende unangenehme Gerüche auf Basis schwefelhaltiger Geruchskörper zu markieren und so die Wirkung der übrigen Duftstoffe zu steigern. Als Sulfitfänger können eingesetzt werden insbesondere Aceton, Formaldehyd, reduzierbare Zucker, wie Traubenzucker und Fruchtzucker, sowie nicht reduzierbare Zucker wie z. B. Rohrzucker. Dabei wurde festgestellt, dass insbesondere geeignet als Sulfitfänger Rohrzucker, Natriumascorbat und/oder Natriumthiosulfat sind, da diese die Entfärbungsleistung der erfindungsgemäßen Mischung am wenigsten beeinträchtigen.If an extender is used, it is preferably selected from a group comprising sodium sulfate, ammonium sulfate, sodium chloride, ammonium chloride, ammonium acetate and / or diammonium hydrogen phosphate. The extender may be present in concentrations of up to 30 g / l in the aqueous mixture. It is preferred to use those extenders which have ammonium cations. Particularly preferred as the diluent sodium sulfate and / or ammonium sulfate. Fragrances and odor inhibitors may be present alone or in mixtures in concentrations ranging from 0.001 g / l to about 0.6 g / l in the mixture according to the invention. Preferred fragrances are the fragrance oils known from the prior art. Particularly preferred linalool (3,7 dimethyl-1,6-octadien-3-ol) can be used, because this is able to mark the unpleasant odors occurring during the Entfärbevorgang based on sulfur-containing odor and thus to increase the effect of other perfumes , As Sulfitfänger can be used in particular acetone, formaldehyde, reducible sugars, such as glucose and fructose, and non-reducible sugars such. B. cane sugar. It has been found that particularly suitable as sulfite scavengers are cane sugar, sodium ascorbate and / or sodium thiosulfate, since these least affect the decolorization performance of the mixture according to the invention.
Besonders bevorzugt umfasst die erfindungsgemäße Mischung mindestens einen Blaupunktsuppressor, ausgewählt aus einer Gruppe umfassend mindestens eine quartäre Ammoniumverbindung und/oder mindestens ein Polyvinylpyrrolidon. Unter Blaupunktsuppressoren im Sinne der vorliegenden Erfindung sind Substanzen oder Substanzmischungen zu verstehen, die das unerwünschte Auftreten von blauen Punkten oder Sprenkeln weiter verhindern oder unterdrücken helfen bzw. deren Anzahl in signifikanter Weise vermindern können. Dabei wurde überraschenderweise festgestellt, dass durch den Einsatz derartiger Blaupunktsuppressoren in der erfindungsgemäßen Mischung, welche grundsätzlich bereits die Bildung blauer Sprenkel im Entfärbungsvorgang vermeidet, ein synergetischer Effekt auftritt, so dass bei erfindungsgemäßen Mischungen, welche insbesondere Blaupunktsuppressoren in einer Menge in einem Bereich von etwa 0,1 g/l bis etwa 5 g/l aufweisen, auch gewebeunabhängig eine so gut wie vollständige Verhinderung der Bildung von blauen Sprenkeln festzustellen ist. Dabei tritt dieser Effekt weiter vorzugsweise dann auf, wenn die erfindungsgemäße Mischung in wässriger Lösung sich zumindest nach der Entfärbung im leicht sauren Bereich bewegt, also beispielsweise einen pH-Wert in einem Bereich von etwa 5 bis 7 aufweist.The mixture according to the invention particularly preferably comprises at least one blue spot suppressor selected from a group comprising at least one quaternary ammonium compound and / or at least one polyvinylpyrrolidone. Blaupunkttsuppressoren in the context of the present invention are substances or mixtures of substances to understand that can help prevent the undesirable occurrence of blue dots or speckles continue to suppress or reduce their number in a significant manner. It was surprisingly found that through the use such Blaupunktsuppressoren in the mixture according to the invention, which in principle already avoids the formation of blue speckles in the decolorizing process, a synergistic effect occurs, so that mixtures of the invention, in particular Blaupunktsuppressoren in an amount ranging from about 0.1 g / l to about 5 g / l, also a tissue-independent as good as complete prevention of the formation of blue speckles is observed. In this case, this effect further preferably occurs when the mixture according to the invention in aqueous solution at least after decolorization moves in the slightly acidic range, that is, for example, has a pH in a range of about 5 to 7.
Unter dem Begriff der Polyvinylpyrrolidone (PVP) im Sinne der vorliegenden Erfindung werden sowohl Copolymere als auch Block-Copolymere und Random-Block-Copolymere, aber auch Polyvinylpolypyrrolidone (PVPP; Kurzbezeichnung: Crospovidon) verstanden. Crospovidone sind unlösliche, vernetzte Polyvinylpyrrolidone, die sich beim Erhitzen von Vinylpyrrolidon mit Alkalien oder Divinylverbindungen als so genannte "Popcorn-Polymere" bilden. Der Einsatz derartiger Polyvinylpyrrolidon-Derivate ist im Sinne der vorliegenden Erfindung besonders bevorzugt. Weiter bevorzugt im Sinne der vorliegenden Erfindung ist der Einsatz einer Mischung von Blaupunktsuppressoren umfassend mindestens eine quartäre Ammoniumverbindung und mindestens ein Polyvinylpyrrolidon. Bevorzugte Blaupunktsuppressoren im Sinne der vorliegenden Erfindung sind aus der nachstehenden Tabelle 1 ersichtlich.
112-02-7
112-02-7
Besonders bevorzugt ist der Blaupunktsuppressor bei Auswahl einer quartären Ammoniumverbindung ausgewählt aus einer Gruppe umfassend Dimethyl-substituierte quartäre Ammoniumverbindungen, wobei weiter bevorzugt Dialkyl-Dimethyl- und/oder Monoalkyl-Monobenzyl-Dimethyl-substituierte quartäre Ammoniumverbindungen sind. Bevorzugt besteht der Alkylrest der quartären Ammoniumverbindung aus linearen und/oder verzweigten Kohlenstoffketten mit 4 bis 20 Kohlenstoffatomen. Der Blaupunktsuppressor liegt dabei bevorzugt als Chloridsalz vor. Im Sinne der vorliegenden Erfindung können dabei auch Mischungen unterschiedlicher Blaupunktsuppressoren auf Basis von quartären Ammoniumverbindungen, auch in Kombination mit Polyvinylpyrrolidonen als Blaupunktsuppressoren, auch Mischungen derselben, in der Entfärbermischung vorliegen.Particularly preferred is the blue dot suppressor in selecting a quaternary ammonium compound selected from a group comprising dimethyl-substituted quaternary ammonium compounds, more preferably being dialkyl-dimethyl and / or monoalkyl-monobenzyl-dimethyl-substituted quaternary ammonium compounds. The alkyl radical of the quaternary ammonium compound preferably consists of linear and / or branched carbon chains having 4 to 20 carbon atoms. The blue spot suppressor is preferably present as the chloride salt. For the purposes of the present invention, it is also possible for mixtures of different blueprint suppressors based on quaternary ammonium compounds, also in combination with polyvinylpyrrolidones as blue spot suppressors, and also mixtures thereof, to be present in the decolorizer mixture.
Weiterhin kann die erfindungsgemäße Mischung sonstige übliche, auch Waschmitteln zugesetzte Substanzen aufweisen. So kann die Entfärbermischung z. B. optische Aufheller aufweisen, da diese nicht nachteilig zu der Bildung von blauen Sprenkeln aufgrund des Vorsehens eines Blaupunktsuppressors in der erfindungsgemäßen Entfärbermischung führen. Des Weiteren können der Entfärbermischung Enzyme, Schauminhibitoren, Weichmacher und sonstige Hilfsmittel zugesetzt sein.Furthermore, the mixture according to the invention may comprise other customary substances which are also added to detergents. Thus, the Entfärbermischung z. B. optical brightener, since they do not adversely lead to the formation of blue speckles due to the provision of a Blaupunktsuppressors in Entfärbermischung invention. Furthermore, enzymes, foam inhibitors, plasticizers and other auxiliaries may be added to the decolorizer mixture.
Überraschenderweise hat sich gezeigt, dass auch das Vorliegen nur geringer Mengen an Blaupunktsuppressoren, insbesondere von Mengen in einem Bereich von 0,1 g/l bis 1g/l in der erfindungsgemäßen Mischung zu hervorragenden Entfärbungsergebnissen führen, was mit der deutlich verringerten Alkalität der erfindungsgemäßen Mischung im Vergleich zu den aus dem Stand der Technik bekannten Mischungen begründet sein dürfte.Surprisingly, it has been shown that the presence of only small amounts of blue spot suppressors, in particular of amounts in a range of 0.1 g / l to 1 g / l in the mixture according to the invention lead to excellent decolorization results, which corresponds to the significantly reduced alkalinity of the mixture according to the invention should be justified in comparison to the known from the prior art mixtures.
Besonders bevorzugt ist eine Mischung umfassend etwa 10 g/l bis etwa 20 g/l Natriumdithionit als Bleichmittel, etwa 2 g/l bis etwa 10 g/l Natriumdisulfit als disulfithaltiges Mittel sowie etwa 2 g/l bis etwa 10 g/l Natriumcarbonat und/oder Natriumhydrogencarbonat als Alkalimittel. Weiter bevorzugt kann eine solche Mischung ein Blaupunktsuppressor ausgewählt aus der Gruppe der Polyvinylpyrrolidone und/oder quartären Ammoniumverbindungen in einer Menge von 0,1 g/l bis etwa 0,3 g/l umfassen.Particularly preferred is a mixture comprising about 10 g / l to about 20 g / l sodium dithionite as bleach, about 2 g / l to about 10 g / l sodium disulfite as disulfithaltige and about 2 g / l to about 10 g / l sodium carbonate and / or sodium bicarbonate as the alkali agent. More preferably, such a mixture may comprise a blue spot suppressor selected from the group of polyvinylpyrrolidones and / or quaternary ammonium compounds in an amount of from 0.1 g / l to about 0.3 g / l.
Schließlich betrifft die vorliegende Erfindung ein Verfahren zum Entfärben und/oder Entgrauen von Wäschestücken, insbesondere zu Haushaltszwecken, wobei eine erfindungsgemäße Mischung in eine Waschmaschine gegeben und anschließend insbesondere bei einer Temperatur von mindestens etwa 30 °C die Entfärbung über einen Zeitraum von wenigstens 10 Sekunden durchgeführt wird. Grundsätzlich ist festzustellen, dass bei einer höheren Temperatur die Entfärbung schneller verläuft. So wird bei einer Temperatur von etwa 90°C der Entfärbungsvorgang nach etwa 10 bis 20 Sekunden abgeschlossen sein, wohingegen bei einer Temperatur in einem Bereich von etwa 40 °C bis etwa 50 °C der Entfärbungsvorgang nach etwa 2 bis 3 Minuten praktisch abgeschlossen ist. Selbstverständlich kann die erfindungsgemäße Mischung auch derart eingesetzt werden, dass die Entfärbung nicht in einer Waschmaschine, sondern beispielsweise in einem Eimer vorgenommen wird, wobei dann zunächst die erfindungsgemäße Mischung in Wasser mit einer bestimmten Temperatur gelöst und anschließend die zu entfärbenden Wäschestücke in das Behältnis gegeben werden.Finally, the present invention relates to a method for decolorization and / or degasification of laundry, in particular for household purposes, wherein a mixture according to the invention placed in a washing machine and then carried out at a temperature of at least about 30 ° C, the decolorization over a period of at least 10 seconds becomes. Basically, it is noted that at a higher temperature, the decolorization proceeds faster. Thus, at a temperature of about 90 ° C, the decolorization process will be completed in about 10 to 20 seconds, whereas at a temperature in a range of about 40 ° C to about 50 ° C, the decolorization process will be practically completed after about 2 to 3 minutes. Of course, the mixture according to the invention can also be used such that the decolorization is not carried out in a washing machine but, for example, in a bucket, in which case the mixture according to the invention is first dissolved in water at a specific temperature and then the items to be decolored are placed in the container ,
Besonders vorteilhaft an der erfindungsgemäßen Mischung ist, dass diese unmittelbar direkt in die Trommel zu Beginn des Waschvorganges in eine Waschmaschine eingegeben werden kann oder aber in das übliche Einfüllfach. Zur Erzielung optimaler Entfärbungsleistungen ist es daher nicht notwendig, wie aus dem Stand der Technik bekannt, erst nach Aufheizung des Wassers etwa 10 bis 15 Minuten nach Start des Waschprogrammes der Waschmaschine nachfolgend eine Entfärbermischung zuzugeben. Die erfindungsgemäße Mischung zeichnet sich daher durch eine äußerst einfache, üblichen Waschmitteln angeglichene Handhabung aus.A particular advantage of the mixture according to the invention is that it can be entered directly into the drum at the beginning of the washing process in a washing machine or in the usual filling. To achieve optimum decolorization performance, it is therefore not necessary, as known from the prior art, to add a decolorizer mixture only after heating the water about 10 to 15 minutes after the start of the washing program of the washing machine. The mixture according to the invention is therefore characterized by an extremely simple, customary detergents adapted handling.
Selbstverständlich kann mit der erfindungsgemäßen Mischung auch eine Kaltentfärbung beim Raumtemperatur, das heißt Temperaturen in einem Bereich von etwa 15 °C bis etwa 25 °C, gegebenenfalls unter Luftabschluss, wie in der
Die Entfärbungs- und Entgrauungsleistungen verschiedener erfindungsgemäßer Mischungen wurden für Baumwollgewebe getestet. Das übliche Baumwollgewebe mit einer Größe von 1,5 x 2,2 m wurde dabei bezogen von der Firma Setex-Textil-GmbH, Frankenstraße 15, 46499 Hamminkeln, Deutschland, wobei das Baumwollgewebe mit einem optischen Aufheller gebleicht war. Dieses entspricht etwa einem Gewebe, wie es für Bettlaken üblicherweise verwendet wird. Das Baumwollgewebe wurde mit den folgenden Echtfarben auf Basis von Reaktivfarbstoffen (A - F) bzw. Direktfarben (G - I) (als Volltonfärbung bzw. 1/100 Tongefärbung) gefärbt (die folgenden Angaben beziehen sich auf ein Laken von 1,5 x 2,2 m in Volltonfärbung, für eine 1/100 Tonfärbung müssen die Mengen entsprechen verringert werden):
Die vorgenannten Farbstoffe wurden von der Firma Dystar Textilfarben Gmbh & Co. KG, Köln, bezogen. Die Mischungen B, F und I werden in einer Waschmaschine AEG Öko-Lavamat 85739, die Mischungen A, D, G in einer Waschmaschin Miele Novotronic W 531, die Mischungen C, E und H in einer Waschmaschine AEG Öko-Lavamat 70529 bei einer Flottenmenge vom 12,5 Litern und einer Temperatur von 30°C unter Einsatz der vorgenannten Farbmischungen A - jeweils Baumwollgewebestücke gefärbt, wobei die eingesetzte Stoffmenge etwa 600 g betrug. Als Fixierer für die Mischungen A bis F wurde für jede der durchgeführten Färbungen 50 g Natriummetasilikat und 950 g Natriumchlorid eingesetzt.The aforementioned dyes were purchased from Dystar Textile Colors Gmbh & Co. KG, Cologne. The mixtures B, F and I are used in a washing machine AEG Öko-Lavamat 85739, the mixtures A, D, G in a washing machine Miele Novotronic W 531, the mixtures C, E and H in a washing machine AEG Öko-Lavamat 70529 in a fleet quantity of 12.5 liters and a temperature of 30 ° C using the aforementioned color mixtures A - each dyed cotton fabric pieces, the amount of material used was about 600 g. As a fixer for mixtures A to F, 50 g of sodium metasilicate and 950 g of sodium chloride were used for each of the dyeings carried out.
Die solchermaßen gefärbten Baumwollgewebe in Form etwa A4-großer Teilstücke wurden nachfolgend mit unterschiedlichen erfindungsgemäßen Mischungen entfärbt. Dazu wurden die erfindungsgemäßen, in einen Beutel abgepackten Mischungen direkt vor Beginn des Waschganges in eine Waschmaschine AEG Öko Lavamat Euroline in die Trommel in einer Menge von 250 g insgesamt zugegeben, mit Ausnahme der Mischung 5, welche in einem etwa 200 g schweren Beutel zugegeben wurde. Zusätzlich wurden noch als Ballaststoff weiße Baumwollbettlaken in einer Menge von etwa 1800 g zugegen. Die DIN A4-großen Teststücke wurden in einer Menge von etwa 200 g zugegeben, entsprechend etwa 18 Stück. Die Ballaststoffe wurden lediglich zugegeben, um realistisch Beladungsverhältnisse und damit praxisnahe Versuchsbedingungen zu erhalten.The thus dyed cotton fabric in the form of about A4-sized sections were subsequently decolorized with different mixtures according to the invention. To this end, the bagged mixtures of the present invention were added to the AEG Eco Lavamat Euroline washer just prior to the start of the wash into the drum in an amount of 250 grams, with the exception of Mix 5, which was added in a bag weighing approximately 200 grams , In addition were still considered fiber white cotton sheets in an amount of about 1800 g. The DIN A4-sized test pieces were added in an amount of about 200 g, corresponding to about 18 pieces. The fibers were added only to obtain realistic loading conditions and thus practical test conditions.
Die eingesetzten erfindungsgemäßen Mischungen sind in Ihrer Zusammensetzung der nachfolgenden Tabelle 2 zu entnehmen.
Das Tensid hat die CAS-Nr.: 69011-36-5 und wurde bezogen von Sasol, Paul-Baumann-Str. 1, 45764 Marl.The surfactant has CAS No .: 69011-36-5 and was obtained from Sasol, Paul-Baumann-Str. 1, 45764 Marl.
Bei einer Entfärbung bei einer Temperatur von 60°C mit einem üblichen Koch-/Buntwäscheprogramm über ca. 120 Minuten wurden dabei mit sämtlichen Mischungen 1 bis 7 gute bis sehr gute Entfärberleistungen festgestellt, wobei besonders gute Entfärbeleistungen mit den Mischungen 3, 5 und 7 erhalten worden sind.In a decolorization at a temperature of 60 ° C with a conventional cooking / Bunwäscheprogramm over about 120 minutes were found with all mixtures 1 to 7 good to very good Entfärberleistungen, with particularly good Entfärbeleistungen obtained with the mixtures 3, 5 and 7 have been.
Sämtliche Mischungen 1 bis 7 zeichnen sich durch eine besonders gute Entfärbeleistung bei der "Sofortzugabe" direkt zu Beginn des Entfärbevorgangs in der Waschmaschine aus. Ferner zeichnen sie sich dadurch aus, dass die Bildung blauer Sprenkel vermieden wird, bei den Mischungen 3, 5 und 7 sogar so gut wie vollständig. Der pH-Wert sämtlicher Mischungen 1 bis 7 nach Entfärbung lag in einem Bereich zwischen 5 und 6, wohingegen der pH-Wert zu Beginn der Flotte des Entfärbevorgangs etwa 7,5 - 8 betrug, mit Ausnahme der Mischungen 1 und 2, bei welchen der pH-Wert zu Beginn des Entfärbevorgangs in der Flotte etwa 6 - 6,5 betrug. Durch die leicht saure Flotte nach Entfärbung kann dabei sowohl die Entfärbeleitung, als auch der synergetische Effekt bei Zusatz von Blaupunktsuppressoren überraschenderweise weiter gesteigert werden.All mixtures 1 to 7 are characterized by a particularly good Entfärbeleistung in the "immediate addition" directly at the beginning of the Entfärbevorgangs in the washing machine. Furthermore, they are characterized by the fact that the formation of blue speckles avoided is even as good as complete in the mixtures 3, 5 and 7. The pH of all mixtures 1 to 7 after decolorization ranged from 5 to 6, whereas the pH at the beginning of the decolorizing liquor was about 7.5 to 8, with the exception of mixtures 1 and 2, in which pH at the beginning of the decolorizing process in the liquor was about 6-6.5. Due to the slightly acidic liquor after decolorization, both the decolorization line and the synergistic effect with the addition of blue spot suppressants can surprisingly be further increased.
Claims (16)
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| DE102007030424A DE102007030424A1 (en) | 2007-06-29 | 2007-06-29 | Mixture for decolorization and / or degumming of laundry items |
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| CN103122575A (en) * | 2012-12-15 | 2013-05-29 | 天津市宇通工艺品有限公司 | Processing technology of goat hair for braiding carpet |
| US12281284B2 (en) | 2019-12-20 | 2025-04-22 | The Procter & Gamble Company | Particulate fabric care composition |
| US12404479B2 (en) | 2022-07-11 | 2025-09-02 | The Procter & Gamble Company | Laundry detergent composition containing graft copolymer and benefit agent |
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| EP3747979A1 (en) | 2019-06-05 | 2020-12-09 | Glatfelter Gernsbach GmbH | Dye-capturing non-woven fabric and method for producing the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3831098C2 (en) | 1988-09-13 | 1992-08-27 | Ludwig 3560 Biedenkopf De Plack | |
| EP0615018A1 (en) | 1993-03-08 | 1994-09-14 | DEUTSCHE BABY-FARBEN GmbH | Decolorant for textiles |
| DE19503480A1 (en) | 1995-02-03 | 1996-08-08 | Brauns Heitmann Gmbh & Co Kg | Reducing bleach consumption in decolourisation of textile in open tub |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2426055C3 (en) * | 1974-05-30 | 1982-05-27 | Basf Ag, 6700 Ludwigshafen | Reductive bleach |
| DE19610745A1 (en) * | 1996-03-20 | 1997-09-25 | Basf Ag | Mixtures of reducing sulfur compounds and organic corrosion inhibitors and their use as corrosion-inhibiting bleaching or reducing agents |
-
2007
- 2007-06-29 DE DE102007030424A patent/DE102007030424A1/en not_active Withdrawn
-
2008
- 2008-06-12 AT AT08010663T patent/ATE556172T1/en active
- 2008-06-12 EP EP08010663A patent/EP2009175B1/en not_active Not-in-force
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3831098C2 (en) | 1988-09-13 | 1992-08-27 | Ludwig 3560 Biedenkopf De Plack | |
| EP0615018A1 (en) | 1993-03-08 | 1994-09-14 | DEUTSCHE BABY-FARBEN GmbH | Decolorant for textiles |
| DE19503480A1 (en) | 1995-02-03 | 1996-08-08 | Brauns Heitmann Gmbh & Co Kg | Reducing bleach consumption in decolourisation of textile in open tub |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122575A (en) * | 2012-12-15 | 2013-05-29 | 天津市宇通工艺品有限公司 | Processing technology of goat hair for braiding carpet |
| US12281284B2 (en) | 2019-12-20 | 2025-04-22 | The Procter & Gamble Company | Particulate fabric care composition |
| US12404479B2 (en) | 2022-07-11 | 2025-09-02 | The Procter & Gamble Company | Laundry detergent composition containing graft copolymer and benefit agent |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2009175B1 (en) | 2012-05-02 |
| EP2009175A3 (en) | 2010-08-11 |
| ATE556172T1 (en) | 2012-05-15 |
| DE102007030424A1 (en) | 2009-03-05 |
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