AT44466B - Process for the preparation of direct dyeing cotton dyes. - Google Patents
Process for the preparation of direct dyeing cotton dyes.Info
- Publication number
- AT44466B AT44466B AT44466DA AT44466B AT 44466 B AT44466 B AT 44466B AT 44466D A AT44466D A AT 44466DA AT 44466 B AT44466 B AT 44466B
- Authority
- AT
- Austria
- Prior art keywords
- preparation
- dyes
- direct dyeing
- dyeing cotton
- acid
- Prior art date
Links
- 239000000975 dye Substances 0.000 title claims description 10
- 229920000742 Cotton Polymers 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 238000009967 direct dyeing Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- 239000002253 acid Substances 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 150000004982 aromatic amines Chemical class 0.000 claims description 2
- ZDTXQHVBLWYPHS-UHFFFAOYSA-N 4-nitrotoluene-2-sulfonic acid Chemical compound CC1=CC=C([N+]([O-])=O)C=C1S(O)(=O)=O ZDTXQHVBLWYPHS-UHFFFAOYSA-N 0.000 claims 1
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 2
- VWLGQKLHWIVCCZ-UHFFFAOYSA-N 53992-33-9 Chemical compound OS(=O)(=O)CC1=CC=C([N+]([O-])=O)C=C1 VWLGQKLHWIVCCZ-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- VFLDPWHFBUODDF-FCXRPNKRSA-N curcumin Chemical compound C1=C(O)C(OC)=CC(\C=C\C(=O)CC(=O)\C=C\C=2C=C(OC)C(O)=CC=2)=C1 VFLDPWHFBUODDF-FCXRPNKRSA-N 0.000 description 2
- UETHPMGVZHBAFB-OWOJBTEDSA-N 4,4'-dinitro-trans-stilbene-2,2'-disulfonic acid Chemical compound OS(=O)(=O)C1=CC([N+]([O-])=O)=CC=C1\C=C\C1=CC=C([N+]([O-])=O)C=C1S(O)(=O)=O UETHPMGVZHBAFB-OWOJBTEDSA-N 0.000 description 1
- ZXVONLUNISGICL-UHFFFAOYSA-N 4,6-dinitro-o-cresol Chemical group CC1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1O ZXVONLUNISGICL-UHFFFAOYSA-N 0.000 description 1
- 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 1
- OIQPTROHQCGFEF-UHFFFAOYSA-L chembl1371409 Chemical compound [Na+].[Na+].OC1=CC=C2C=C(S([O-])(=O)=O)C=CC2=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 OIQPTROHQCGFEF-UHFFFAOYSA-L 0.000 description 1
- 229940109262 curcumin Drugs 0.000 description 1
- 235000012754 curcumin Nutrition 0.000 description 1
- 239000004148 curcumin Substances 0.000 description 1
- VFLDPWHFBUODDF-UHFFFAOYSA-N diferuloylmethane Natural products C1=C(O)C(OC)=CC(C=CC(=O)CC(=O)C=CC=2C=C(OC)C(O)=CC=2)=C1 VFLDPWHFBUODDF-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Coloring (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung direktfärbender Baumwollfarbstoffe.
In den deutschen Patentschriften Nr. 100613, 101760, 105057 und 113514 sind Farbstoffe beschrieben, die durch Kondensation von Ajninen mit der Dinitrodibenzyldisulfosaure oder der Dinitrostilbendisulfosäure entstehen.
Es wurde nun gefunden, dass sich aromatische Amine bei Gegenwart von Alkalien auch mit den unter dem Namen Curcumin S. Sonnengelb oder Direktgelb bekannten Farbstoffen kondensieren lassen, die durch Erhitzen von para-nitrotoluolsulfosaurem Natrium mit Natronlauge entstehen. und als Azoxystilbendisulfosäure bezw. Azoazoxydistilbendisulfosäure (vergl. Green, Journal of Chemical Society 89, 1610) angesprochen werden. Auf vier Moleküle der angewandten p-Nitro- toluolsulfosäure ist ein Molekül des zu kondensierenden Aminokörpers notwendig. Doch ist es für die Kondensation meist vorteilhaft einen Überschuss des letzteren anzuwenden, der eventuell
EMI1.1
Ein Vorteil des neuen Verfahren liegt darin, dass die hier verwendeten Farbstoffe technisch leichter und einfacher zu erhalten sind als die oben erwähnten farblosen Dinitroverbindungen.
Beispiel l.
Dasaus70Teilenp-nitrotoluolsulfosauremNatriumhergestellteDirektgelbwirdmit Wasser zu einem dünnen Brei angerührt und mit 9,5 Teilen p-Aminophenol und 50 Teilen
EMI1.2
so erhält man einen Farbstoff, der die Baumwolle grünstichiger anfärbt und wesentlich alkali echter ist.
Beispiel 2.
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neutralisiert und der Farbstoff durch Zusatz von Mineralsäure isoliert. Er färbt Baumwolle orangerot an.
Beispiel 3.
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<Desc/Clms Page number 2>
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werden.
<Desc / Clms Page number 1>
Process for the preparation of direct dyeing cotton dyes.
German Patent Nos. 100613, 101760, 105057 and 113514 describe dyes which are formed by the condensation of ajnines with dinitrodibenzyl disulfonic acid or dinitrostilbene disulfonic acid.
It has now been found that, in the presence of alkalis, aromatic amines can also be condensed with the dyes known under the name Curcumin S. Sun Yellow or Direct Yellow, which are formed by heating para-nitrotoluenesulfonic acid sodium with sodium hydroxide solution. and as azoxystilbene disulfonic acid respectively. Azoazoxydistilbene disulfonic acid (see Green, Journal of Chemical Society 89, 1610) are addressed. For every four molecules of the applied p-nitro toluenesulfonic acid, one molecule of the amino body to be condensed is necessary. But it is usually advantageous to use an excess of the latter for the condensation, which may be
EMI1.1
One advantage of the new process is that the dyes used here are technically easier and simpler to obtain than the colorless dinitro compounds mentioned above.
Example l.
The direct yellow, made from 70 parts of p-nitrotoluenesulfonic acid, is mixed with water to a thin paste and with 9.5 parts of p-aminophenol and 50 parts
EMI1.2
in this way a dye is obtained which dyes the cotton greener and is much more alkaline.
Example 2.
EMI1.3
neutralized and the dye isolated by adding mineral acid. It stains cotton orange-red.
Example 3.
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<Desc / Clms Page number 2>
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will.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE44466X | 1908-11-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT44466B true AT44466B (en) | 1910-10-25 |
Family
ID=5624676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT44466D AT44466B (en) | 1908-11-03 | 1909-10-09 | Process for the preparation of direct dyeing cotton dyes. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT44466B (en) |
-
1909
- 1909-10-09 AT AT44466D patent/AT44466B/en active
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