CH208929A - Process for the production of cellulose which can be dyed with acidic dyes. - Google Patents
Process for the production of cellulose which can be dyed with acidic dyes.Info
- Publication number
- CH208929A CH208929A CH208929DA CH208929A CH 208929 A CH208929 A CH 208929A CH 208929D A CH208929D A CH 208929DA CH 208929 A CH208929 A CH 208929A
- Authority
- CH
- Switzerland
- Prior art keywords
- cellulose
- dyed
- dyes
- production
- acidic
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 title claims description 11
- 239000001913 cellulose Substances 0.000 title claims description 11
- 239000000975 dye Substances 0.000 title claims description 11
- 230000002378 acidificating effect Effects 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- ATGFZSOBDDZEEX-UHFFFAOYSA-N 2-chloro-3-hydroxypropanamide Chemical compound NC(=O)C(Cl)CO ATGFZSOBDDZEEX-UHFFFAOYSA-N 0.000 claims description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 238000009835 boiling Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/05—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur
- C08B15/06—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur containing nitrogen, e.g. carbamates
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung von mit sauren Farbstoffen färbbarer Cellulose. Es wurde gefunden, dass man eine mit sauren Farbstoffen färbbare Cellulose erhält, wenn man Cellulose mit einer Lösung von Methylolehloracetamid tränkt, das so be handelte Material erhitzt und darauf mit Pyridin behandelt.
Die so behandelte Cellulose, ein festes, farbloses Material, hat basische Eigenschaften und lässt sich mit sauren Farbstoffen, wie sauren Wollfarbstoffen, in tiefen, echten Tönen färben.
Für das angegebene Verfahren wird der Schutz nur soweit beansprucht, als es sich nicht um eine für die Textilindustrie in Be tracht kommende Behandlung von Textil fasern zum Zwecke deren Veredlung handelt. Beispiel: Cellulose wird in einer wässerigen 10 bis 20 %igen Lösung von Methylolchloracetamid, die 0,5% Ameisensäure enthält, bei 30-400 während 15-30 Minuten umgezogen, abge quetscht, zuerst bei 50-601) getrocknet und darin während 4 Stunden auf 110-1150 er hitzt. Hierauf wird das Material in siedend heissem Wasser gespült, zentrifugiert und, feucht oder trocken, in Pyridin bei<B>60-80'</B> eingelegt.
Nach '/z-stündiger Einwirkungs dauer wird die Cellulose abgequetscht und wieder in siedend heissem Wasser gespült und getrocknet.
Die so behandelte Cellulose, ein festes, farbloses Material, -hat basische Eigenschaften und lässt sich mit sauren Farbstoffen, wie sauren Wollfarbstoffen, in tiefen, echten Tönen färben.
Process for the production of cellulose which can be dyed with acidic dyes. It has been found that cellulose which can be dyed with acidic dyes is obtained if cellulose is impregnated with a solution of methylolchloroacetamide, the material thus treated is heated and then treated with pyridine.
The cellulose treated in this way, a solid, colorless material, has basic properties and can be dyed in deep, genuine tones with acidic dyes, such as acidic wool dyes.
For the specified process, protection is only claimed insofar as it is not a question of a treatment of textile fibers for the purpose of their finishing that is suitable for the textile industry. Example: Cellulose is removed in an aqueous 10 to 20% solution of methylolchloracetamide containing 0.5% formic acid at 30-400 for 15-30 minutes, squeezed off, first dried at 50-601) and then for 4 hours on 110-1150 he heats up. The material is then rinsed in boiling hot water, centrifuged and, moist or dry, placed in pyridine at <B> 60-80 '</B>.
After 1/2 hours of exposure, the cellulose is squeezed off and rinsed again in boiling hot water and dried.
The cellulose treated in this way, a solid, colorless material, has basic properties and can be dyed in deep, genuine shades with acidic dyes, such as acidic wool dyes.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH208929T | 1938-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH208929A true CH208929A (en) | 1940-03-15 |
Family
ID=4446294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH208929D CH208929A (en) | 1938-05-05 | 1938-05-05 | Process for the production of cellulose which can be dyed with acidic dyes. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH208929A (en) |
-
1938
- 1938-05-05 CH CH208929D patent/CH208929A/en unknown
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