US1818466A - Textile material containing organic esters of cellulose and method of preparing the same - Google Patents
Textile material containing organic esters of cellulose and method of preparing the same Download PDFInfo
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- US1818466A US1818466A US293781A US29378128A US1818466A US 1818466 A US1818466 A US 1818466A US 293781 A US293781 A US 293781A US 29378128 A US29378128 A US 29378128A US 1818466 A US1818466 A US 1818466A
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- United States
- Prior art keywords
- textile material
- cellulose
- fabric
- bath
- organic esters
- Prior art date
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- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 title description 64
- 239000004753 textile Substances 0.000 title description 56
- 229920002678 cellulose Polymers 0.000 title description 23
- 239000001913 cellulose Substances 0.000 title description 23
- 150000002895 organic esters Chemical class 0.000 title description 22
- 238000000034 method Methods 0.000 title description 17
- 239000004744 fabric Substances 0.000 description 35
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 30
- 238000010409 ironing Methods 0.000 description 27
- 235000010980 cellulose Nutrition 0.000 description 22
- 239000003795 chemical substances by application Substances 0.000 description 20
- 239000000243 solution Substances 0.000 description 19
- 238000007127 saponification reaction Methods 0.000 description 17
- 229940081735 acetylcellulose Drugs 0.000 description 16
- 229920002301 cellulose acetate Polymers 0.000 description 16
- 239000003513 alkali Substances 0.000 description 13
- 235000011121 sodium hydroxide Nutrition 0.000 description 10
- 239000000344 soap Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 150000003606 tin compounds Chemical class 0.000 description 6
- 230000008961 swelling Effects 0.000 description 5
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 4
- 239000001263 FEMA 3042 Substances 0.000 description 4
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 239000012670 alkaline solution Substances 0.000 description 4
- -1 hydroxyl ions Chemical class 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229940033123 tannic acid Drugs 0.000 description 4
- 235000015523 tannic acid Nutrition 0.000 description 4
- 229920002258 tannic acid Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ZAMLGGRVTAXBHI-UHFFFAOYSA-N 3-(4-bromophenyl)-3-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid Chemical compound CC(C)(C)OC(=O)NC(CC(O)=O)C1=CC=C(Br)C=C1 ZAMLGGRVTAXBHI-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 2
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 159000000011 group IA salts Chemical class 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 2
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241000985648 Bleekrodea Species 0.000 description 1
- DQEFEBPAPFSJLV-UHFFFAOYSA-N Cellulose propionate Chemical compound CCC(=O)OCC1OC(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C1OC1C(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C(COC(=O)CC)O1 DQEFEBPAPFSJLV-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000004285 Potassium sulphite Substances 0.000 description 1
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- GUBGYTABKSRVRQ-QRZGKKJRSA-N beta-cellobiose Chemical compound OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QRZGKKJRSA-N 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 239000000337 buffer salt Substances 0.000 description 1
- 229920001727 cellulose butyrate Polymers 0.000 description 1
- 229920006218 cellulose propionate Polymers 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Substances OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 description 1
- 235000019252 potassium sulphite Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 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
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulphite Substances [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- SOBHUZYZLFQYFK-UHFFFAOYSA-K trisodium;hydroxy-[[phosphonatomethyl(phosphonomethyl)amino]methyl]phosphinate Chemical compound [Na+].[Na+].[Na+].OP(O)(=O)CN(CP(O)([O-])=O)CP([O-])([O-])=O SOBHUZYZLFQYFK-UHFFFAOYSA-K 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
- D06M11/385—Saponification of cellulose-acetate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
- Y10S8/92—Synthetic fiber dyeing
- Y10S8/921—Cellulose ester or ether
Definitions
- This invention relates to the treatment of fabrics or yarns containing organic esters of cellulose in such a manner that the fabrics or yarns may be safely ironed by means of irons or calenders that are at higher temperatures than may safely be employed with previously known textile materials.
- An object of ourinvention is to produce textile material containing organic esters of cellulose that have higher safe ironing temperatures than prev1ously' known textile materials of this type.
- Other objects of our invention will a pear from the following detailed description. 7
- extile materials containing yarns of 'organic esters of cellulose may ordinarily not be ironed with an iron whose temperature is above about 230 0. since the organic esters of cellulose material tends to stick to the :0 iron above this temperature.
- the so partially saponified material is then weighted with metallic salts or other weightin agents to the desired degree.
- cordance with our invention may be a woven, knitted or netted fabric or it may be yarn in the form of hanks, or wound on bobbins, cones or other textile packages.
- Thetextile' material to be treated may contain any suitable organic ester of cellulose such as cellulose acetate, cellulose formate, cellulose propionate or cellulose butyrate.
- the textile material may consist wholly of one or more of these organic esters of cellulose, or may be a mixed fabric or yarn containing yarns of these organic esters of cellulose and yarns of cotton, silk or reconstituted cellulose (rayon).
- the alkaline'bath used for partially saponifying the cellulose acetate contained in the fabric or yarn may be either of low concentration or of highconcentration dependin on the temperature of treatment. If an a alinesolution of low concentration is used, higher temperatures may be employed in the process, .whereas if alkaline solutions of high concentrations are used, low temperatures of treatment are employed. If a solution of intermediate concentration is employed, intermediate temperatures of treatment should .be used.
- the saponifying bath may contain any suitable alkali or alkaline salt for producing hydroxyl ions in aqueous solutions.
- alkalies sodium hydroxide, potassium hydroxide or ammonium ide may be mentioned.
- alkaline salts are sodiumor potassium carbonates,- sodium or potassium henolate, sodium or potassium sulphite, sodium or potassium phosphate.
- buffer salts or mo ifying agents such as soap, sodium acetate, borax or alcohol, etc. may be added to the saponifying hydroxyl ions in amounts corresponding to less than 0.2 grams of sodium hydroxide per liter.
- the saponification may proceed to any desired extent, say 3% or- 5 to 10% or more. These percentages represent the percent of loss of weight the cellulose acetate has suffered through the saponification treatment.
- the saponification of the fabric with alkaline solutions of low concentrations may be carried out in a tank, on the jig, on the winch or in any other suitable device. Often it is desirable to thoroughly wet out the fabric rior to subjecting it to the saponifiqation ath.
- the addition of soap to the saponification bath is of great advantage in promoting level saponification of the organic esters of cellulose material, and also the presence of the soap in the saponifying bath tends to help to cause the saponification to be concentrated on the surface of the yarn containing the organic esters of celulose, which causes desirable increase in safe ironing point. While the proportions of soap to the solution may be varied within wide limits, it may be stated that the presence of 0.5 grams to 10 grams of soap per liter of solution produces satisfactory results.
- the goods are scoured in an open'bath on strings or in any suitable machine such as a jig, with a bath containing olive oil soap for an hour or two.
- the goods may then be removed from the bath and saponified in a separate bath containing fresh water and alkali, but'they are preferably saponified dire tly in the general scouring bath by the addition of a requisite amount of caustic soda.
- the fabric ' is immersed in a bath of such large volume that it contains sufficient alkali to cause the desired degree of saponification-but which is not of such concentration to exceed the maximum permis- 54% acetyl value, we have found that a bath of up to 120 to 180 times the weight of the fabric can advantageously be used, and that such a bath should preferably contain an amount of caustic soda to the extent of 4 to 8% of the weight of the fabric, when a bath temperature of C. is used.
- the proportions will be varied accordingly. Likewise it is apparent that when smaller amounts of alkaline material are used the volume of the saponification bath may be correspondingly decreased.
- the fabric or yarn containing the yarns of cellulose acetate is treated in an alkaline bath of comparatively small volume and containing a relatively small amount of caustic soda.
- the saponification proceeds, further quantities of caustic soda are added in small increments, until the desired degree of saponification has taken place.
- the temperature of treatment is preferably room temperature and should not exceed 35 C. for obtaining the best results.
- the textile material after saponification by any of the above-methods is then weighted by subjecting the same to a swelling agent and a weighting agent.
- Thelswelling agent and the weighting agent may be applied in separate baths or they may be applied in the same bath.
- the weighting agent may of itselfbe a swelling agent so that the use ofanother swelling agent may not be necessary. Examples of threeuarters of an hour.
- swelling agents are comparatively concentrated aqueous solutions of acetic acid,-formic acid, lactic acid, or acetone.
- weighting agents are aqueous solutions of stannic chloride or tannic acid, strong solutions of which are also swelling agents. After treating with the weighting agent, the fabric is subjected to the action of a fixing bath which contains alkaline phosphates or silicates.
- the product formed by our process has a safe ironing point that is from 10 to 25 C. or more higher than the safe ironing point of the textile materials that have been saponified alone or have been weighted alone. Moreover, the fabric produced by our process has a softer hand than fabrics that have been subjected to the weighting process alone or to the partial saponification process alone.
- the textile material should be first partially saponified and then weighted, rather than first weighted and then partially saponified, since a much higher safe ironing point. may be imparted to the textile material by the process that involves first partially saponifying and then weighting. While we do not limit our to this theory we believe that this is due to the fact that if the textile material is first weighted, the presence of the weighting agent causes saponification to proceed throughout the whole fabric, as against the intense surface saponification produced by the partial saponification of the unweighted textile material by the process above described.
- Ewample A wovenfabric consisting wholly of cellulose acetate yarn is plaited and strung, and isthen immersed in a bath in which the ratio of water to fabric is between 130 and 160 to 1.
- This bath contains soap to the extent .of 1 gram per liter of bath and the bath temperature is maintained at 80 C.
- the fabric is treated in this soap bath for It is then raised out o the bath, and caustic soda in an amount equal to 6% of the weight of the fabric is added to the bath, and after the solution is homogeneous, the fabric is then immersed in the bath and is treated therein for approximately threehours while the bath temperature is maintained at 80 C.
- the fabric is then lifted and washed off in water at C.
- this fabric may be dyed or.
- the safe ironing point is determined by measuring the maximum temperature of an iron that does not stick to, melt or scorch the fabric when said iron is permitted to rest upon the fabric for five seconds.
- the safe ironing point of a cotton fabric when tested in 7 this manner is not appreciably over 260 C.
- Method of increasing the safe ironing point of a textile material containing organic esters .of cellulose comprising subjecting the textile material to a solution of'alkali and then weighting the same with a tannic.
- Method of increasing the safe ironing point of a textile material containing organic esters of cellulose comprisingsubjecting the textile material to a solution of alkali, then Weighting the same by treatment with a tin salt, and then 'fixing the tin by treatment with a precipitating agent, whereby a textile material having a safe ironing point above 270 C. is produced.
- Met od of increasing the safe ironing point of a textile material: containing cellulose acetate comprising subjecting the textile material to a solution "of alkali and then weightin the same with a tin compound.
- Met 0d of increasing the safe ironing point of a textile material containing cellulose acetate comprising subjecting the textile material to a solution of alkali, then weighting the same by treatment with a tin salt, and then fixing the tin by treatment with a precipitating agent, whereby a textile material having a safe ironing point above 270 C. is produced.
- Method'of increasing the safe ironing point of a textile material containing cellu lose acetate comprising'subjectin the textile material to a solution of alkali, t en weight ing the same by treatment with a tannic acid solution, and then fixing thetannic acid compounds by treatment with a precipitating agent, whereby a textile material having a safe ironing point above 270 .C. is produced.
- a textile material containing partially saponified cellulose acetate, -which" textile material is weighted with a tannic acid compound, said textile material having a safe ironing point above 270 C.
- said textile material having a safe ironing point between 280 and 285 C.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Description
' Patented Aug. 11, 1931 UNITED STATES PATENT o FmE CAIILLE DBEY I'UB AND WILLIAM B. BLUME, OF NEW- YORK, N. Y., ASSIGNOBS IO WEBB GORIORATION OF AMERICA, A. CORPORATION OF DELAWARE .ZEEZ'I'ILE MATERIAL CGNTAIHIHG ORGANIC ESTERS OI CELLULOSE AND METHOD IBEPARING THE SAME no Drawing.
This invention relates to the treatment of fabrics or yarns containing organic esters of cellulose in such a manner that the fabrics or yarns may be safely ironed by means of irons or calenders that are at higher temperatures than may safely be employed with previously known textile materials.
An object of ourinvention is to produce textile material containing organic esters of cellulose that have higher safe ironing temperatures than prev1ously' known textile materials of this type. Other objects of our invention will a pear from the following detailed description. 7
extile materials containing yarns of 'organic esters of cellulose may ordinarily not be ironed with an iron whose temperature is above about 230 0. since the organic esters of cellulose material tends to stick to the :0 iron above this temperature. To increase the safe ironing point of such textile materials, it has been proposed to partially saponify the same, and it has also been proposed to weight these textile materials with 26 metallic salts. In either case, however,the
safe ironing point is raised to a predetermined amount, which, in the case of cellulose acetate textile material, does not generally exceed 260 C. We have made the so surprising discovery that'if textile materials -containing organic esters of cellulose are first partially saponified and then weighted with a metallic salt or other weightin agent the safe ironing oint of the materia is increased considerably, so that these materials may be ironed at temperatures above that at which even cotton or silk scorches. Thus, a fabric containing cellulose acetate yarn, when treated in accordance with our invention, has a safe ironing point of 27 5 to 285 C. or more. I
In accordance with our invention, we partially saponify the textile material, made of or containing organic esters of cellulose by means of an alkaline bath of suitable concentration and at suitable temperatures.
The so partially saponified material is then weighted with metallic salts or other weightin agents to the desired degree.
' he textile material to be treated in acsilicate, or tri-sodium Application filed July 18, 1928. Serial No. 293,781.
cordance with our invention may be a woven, knitted or netted fabric or it may be yarn in the form of hanks, or wound on bobbins, cones or other textile packages.
Thetextile' material to be treated may contain any suitable organic ester of cellulose such as cellulose acetate, cellulose formate, cellulose propionate or cellulose butyrate. The textile material may consist wholly of one or more of these organic esters of cellulose, or may be a mixed fabric or yarn containing yarns of these organic esters of cellulose and yarns of cotton, silk or reconstituted cellulose (rayon).
The alkaline'bath used for partially saponifying the cellulose acetate contained in the fabric or yarn may be either of low concentration or of highconcentration dependin on the temperature of treatment. If an a alinesolution of low concentration is used, higher temperatures may be employed in the process, .whereas if alkaline solutions of high concentrations are used, low temperatures of treatment are employed. If a solution of intermediate concentration is employed, intermediate temperatures of treatment should .be used.
The saponifying bath may contain any suitable alkali or alkaline salt for producing hydroxyl ions in aqueous solutions. Of the alkalies that are suitable, sodium hydroxide, potassium hydroxide or ammonium ide may be mentioned. Examples 0 alkaline salts. are sodiumor potassium carbonates,- sodium or potassium henolate, sodium or potassium sulphite, sodium or potassium phosphate. In order to promote intense sur ace saponification of the yarn containing the or anic ester of cellulose, buffer salts or mo ifying agents such as soap, sodium acetate, borax or alcohol, etc. may be added to the saponifying hydroxyl ions in amounts corresponding to less than 0.2 grams of sodium hydroxide per liter. The saponification may proceed to any desired extent, say 3% or- 5 to 10% or more. These percentages represent the percent of loss of weight the cellulose acetate has suffered through the saponification treatment.
.The saponification of the fabric with alkaline solutions of low concentrations may be carried out in a tank, on the jig, on the winch or in any other suitable device. Often it is desirable to thoroughly wet out the fabric rior to subjecting it to the saponifiqation ath. The addition of soap to the saponification bath is of great advantage in promoting level saponification of the organic esters of cellulose material, and also the presence of the soap in the saponifying bath tends to help to cause the saponification to be concentrated on the surface of the yarn containing the organic esters of celulose, which causes desirable increase in safe ironing point. While the proportions of soap to the solution may be varied within wide limits, it may be stated that the presence of 0.5 grams to 10 grams of soap per liter of solution produces satisfactory results.
In one mode of carrying out the partial saponification with the use of solutions contaming alkali in low concentrations, the goods are scoured in an open'bath on strings or in any suitable machine such as a jig, with a bath containing olive oil soap for an hour or two. The goods may then be removed from the bath and saponified in a separate bath containing fresh water and alkali, but'they are preferably saponified dire tly in the general scouring bath by the addition of a requisite amount of caustic soda. In one mode of partially saponifying the fabric containing the organic ester of cellulose with an alkaline solution of low concentration, the fabric 'is immersed in a bath of such large volume that it contains sufficient alkali to cause the desired degree of saponification-but which is not of such concentration to exceed the maximum permis- 54% acetyl value, we have found that a bath of up to 120 to 180 times the weight of the fabric can advantageously be used, and that such a bath should preferably contain an amount of caustic soda to the extent of 4 to 8% of the weight of the fabric, when a bath temperature of C. is used. Obviously,
if the fabric or yarn contains other organic esters of cellulose or an alkaline material other than caustic soda is used or if the temperature of the bath is other than 80 Q, the proportions will be varied accordingly. Likewise it is apparent that when smaller amounts of alkaline material are used the volume of the saponification bath may be correspondingly decreased.
In another mode of carrying out the saponification when alkaline-solutions of low concentrations are employed, the fabric or yarn containing the yarns of cellulose acetate is treated in an alkaline bath of comparatively small volume and containing a relatively small amount of caustic soda. As the saponification proceeds, further quantities of caustic soda are added in small increments, until the desired degree of saponification has taken place. Until the operator has gained sufficient experience, it is preferable to check up the amount of caustic soda in thebath by titration with sulphuric acid to insure that the amount of 9 caustic soda added is not sufiiclent to cause fabric containing the organic esters of cellulose in any suitable manner. However, we prefer to apply the caustic sodawhen ap-' plied in comparatively concentrated solution to the fabric by padding the caustic solution onto the fabric and then permitting the same to stand for an appreciable length of time. The temperature of treatment is preferably room temperature and should not exceed 35 C. for obtaining the best results.
The textile material after saponification by any of the above-methods, is then weighted by subjecting the same to a swelling agent and a weighting agent. Thelswelling agent and the weighting agent may be applied in separate baths or they may be applied in the same bath. Furthermore the weighting agent may of itselfbe a swelling agent so that the use ofanother swelling agent may not be necessary. Examples of threeuarters of an hour.
vsh
swelling agents are comparatively concentrated aqueous solutions of acetic acid,-formic acid, lactic acid, or acetone. Examples of weighting agents are aqueous solutions of stannic chloride or tannic acid, strong solutions of which are also swelling agents. After treating with the weighting agent, the fabric is subjected to the action of a fixing bath which contains alkaline phosphates or silicates.
The product formed by our process has a safe ironing point that is from 10 to 25 C. or more higher than the safe ironing point of the textile materials that have been saponified alone or have been weighted alone. Moreover, the fabric produced by our process has a softer hand than fabrics that have been subjected to the weighting process alone or to the partial saponification process alone.
For the best results, the textile material should be first partially saponified and then weighted, rather than first weighted and then partially saponified, since a much higher safe ironing point. may be imparted to the textile material by the process that involves first partially saponifying and then weighting. While we do not limit ourselves to this theory we believe that this is due to the fact that if the textile material is first weighted, the presence of the weighting agent causes saponification to proceed throughout the whole fabric, as against the intense surface saponification produced by the partial saponification of the unweighted textile material by the process above described.
In order to further illustrate our invention thefollowing detailed example is given, but this invention is not limited thereto.
Ewample A wovenfabric consisting wholly of cellulose acetate yarn is plaited and strung, and isthen immersed in a bath in which the ratio of water to fabric is between 130 and 160 to 1. This bath contains soap to the extent .of 1 gram per liter of bath and the bath temperature is maintained at 80 C. The fabric is treated in this soap bath for It is then raised out o the bath, and caustic soda in an amount equal to 6% of the weight of the fabric is added to the bath, and after the solution is homogeneous, the fabric is then immersed in the bath and is treated therein for approximately threehours while the bath temperature is maintained at 80 C. The fabric is then lifted and washed off in water at C.
- The so partially saponified fabric is thenv solution of stannic chloride for "one-halfoff in water and then treated with a 7 Tw.
solution of. sodium silicate. The fabric is then washed with or without soap, and is found to have increased in weight by 20%.
If desired, this fabric may be dyed or.
printed. The safe ironing point of the fabric has been increased by this process by 60 C.
or more, as is'indicated by the fact that the safe ironing point of the fabric, after it has been treated as above described, is increased to 280 'C. to 285 C. The safe ironing point is determined by measuring the maximum temperature of an iron that does not stick to, melt or scorch the fabric when said iron is permitted to rest upon the fabric for five seconds. The safe ironing point of a cotton fabric when tested in 7 this manner is not appreciably over 260 C.
It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the. spirit of this invention.
Having described our invention, what we lose acetate comprising both partially saponifying the cellulose acetate and weighting the textile material.
3. Method of increasing the safe ironing point of a textile material containing organic esters of cellulose comprising subjecting the textile material to a solution of alkali and thenweighting the same.
4. Method of increasing the safe ironing point of a textile material containing organic esters of cellulose-comprising subjecting the textile material to a solution of alkali and then weighting the same with a tin compound.
5. Method of increasing the safe ironing point of a textile material containing organic esters .of cellulose comprising subjecting the textile material to a solution of'alkali and then weighting the same with a tannic.
acid compound.
6. Method of increasing the safe ironing point of a textile material containing organic esters of cellulose comprisingsubjecting the textile material to a solution of alkali, then Weighting the same by treatment with a tin salt, and then 'fixing the tin by treatment with a precipitating agent, whereby a textile material having a safe ironing point above 270 C. is produced.
7. Method of increasing the safe ironing hour at 55 to 65 C. The fabric is rinsed point of a textile material containing celluloseacetate comprising subjecting the textile material to a solution of alkali and then weightin the same.
8. Met od of increasing the safe ironing point of a textile" material: containing cellulose acetate comprising subjecting the textile material to a solution "of alkali and then weightin the same with a tin compound.
9. Met 0d of increasing the safe ironing point of a textile material containing cellulose acetate comprising subjecting the textile material to a solution of alkali, then weighting the same by treatment with a tin salt, and then fixing the tin by treatment with a precipitating agent, whereby a textile material having a safe ironing point above 270 C. is produced. v
10. Method'of increasing the safe ironing point of a textile material containing cellu lose acetate comprising'subjectin the textile material to a solution of alkali, t en weight ing the same by treatment with a tannic acid solution, and then fixing thetannic acid compounds by treatment with a precipitating agent, whereby a textile material having a safe ironing point above 270 .C. is produced.
11. A textile material containing par-' tially saponified organic esters of cellulose, which'textile material is weighted with a weighting agent.
' 12.- A textile material'containing partially saponified cellu'lose acetate, which textile material is weighted 'with a weighting agent.
- 13. A textile material containing artially saponified organic estersof cell ose, which textile material is weighted with a tin compound.
14. A textile material containing partially saponified organic esters of cellulose, which textile materlal is weighted with a tannic acid compound.
15; A textile material containing partially saponified cellulose acetate, which textile material is weighted with a tin compound.
16. A textile material containing partially saponified cellulose acetate, which textile material isv weighted with a tin compound, saidtextile material having a safe ironing point above 270 C.
17. A textile material containing partially saponified cellulose acetate, -which" textile material is weighted with a tannic acid compound, said textile material having a safe ironing point above 270 C.
18. A textile material containing partially saponified cellulose acetate, which textile material is Weighted with a tin compound,
- said textile material having a safe ironing point between 280 and 285 C.
In testimony whereof, We have hereunto subscribed our names.
CAMILLE DREYFUS. WILLIAM R. BLUME.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US293781A US1818466A (en) | 1928-07-18 | 1928-07-18 | Textile material containing organic esters of cellulose and method of preparing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US293781A US1818466A (en) | 1928-07-18 | 1928-07-18 | Textile material containing organic esters of cellulose and method of preparing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1818466A true US1818466A (en) | 1931-08-11 |
Family
ID=23130547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US293781A Expired - Lifetime US1818466A (en) | 1928-07-18 | 1928-07-18 | Textile material containing organic esters of cellulose and method of preparing the same |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1818466A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3535141A (en) * | 1967-04-17 | 1970-10-20 | Deering Milliken Res Corp | Process for making sail release synthetic textile |
| US3619251A (en) * | 1969-05-22 | 1971-11-09 | Norman S Stiles Sr | Cleaning and polishing cloth and method of making it |
| US3649330A (en) * | 1967-03-10 | 1972-03-14 | Johnson & Johnson | Composition containing metal salts and method of utilizing the same to control resin deposition |
-
1928
- 1928-07-18 US US293781A patent/US1818466A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3649330A (en) * | 1967-03-10 | 1972-03-14 | Johnson & Johnson | Composition containing metal salts and method of utilizing the same to control resin deposition |
| US3535141A (en) * | 1967-04-17 | 1970-10-20 | Deering Milliken Res Corp | Process for making sail release synthetic textile |
| US3619251A (en) * | 1969-05-22 | 1971-11-09 | Norman S Stiles Sr | Cleaning and polishing cloth and method of making it |
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