CH211416A - 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
- CH211416A CH211416A CH211416DA CH211416A CH 211416 A CH211416 A CH 211416A CH 211416D A CH211416D A CH 211416DA CH 211416 A CH211416 A CH 211416A
- Authority
- CH
- Switzerland
- Prior art keywords
- cellulose
- dyed
- acidic
- dyes
- treated
- Prior art date
Links
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (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 des Additionsproduktes von Trimethylamin an Chloracetami nomethyl - trimethyl - ammonium- chlorid behandelt und das behandelte Mate rial darauf erhitzt.
Es ist zweckmässig, der Lösung des Tri- methylaminadditionsproduktes ein Alkalisalz einer schwachen Säure, z. B. Natriumacetat zuzufügen, und die Lösung schwach anzu säuern, z. B. mit Ameisensäure.
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. <I>Beispiel:</I> Cellulose wird in einer wässerigen 10%- igen Lösung des Additionsproduktes von Trimethylamin an Chloracetamino-metbyl- trimethyl-ammoniumchlorid der Formel
EMI0001.0030
unter Zusatz von Natriumacetat und soviel Ameisensäure,
dass die Lösung blaues Lack muspapier rötet, bei 30-400 während 15-30 Minuten umgezogen, abgequetscht, zuerst bei 50-60 0 getrocknet und dann während vier Stunden auf 110-115' erhitzt.
Die so erhaltene und leicht gespülte Cel- lulose, ein festes, farbloses Material, hat basische Eigenschaften und lässt sich mit sauren Farbstoffen, wie sauren Wollfarb- stoffen, in tiefen, echter) Tönen färben.
Das angewandte quaternäre Ammonium salz kann wie folgt erhalten werden 12,3 Gewichtsteile Methylolchloracetarnid werden in 50 Volumteilen Alkohol gelöst, zu 30 Volumteilen einer benzolischen Lösung von Trimethylamin von 22 Vol.-Prozent gegeben und über Nacht bei gewöhnliel)er Temperatur stehen gelassen.
Hierauf gibt man 9,5 Gewichtsteile Trimethylaminchlor- hydrat hinzu und kocht während einer Stunde unter Rückflusskühlung. Nach dem Abdestil- lieren des Alkohols und Benzols hinterbleibt die neue quaternäre Ammoniumverbindung als farblose, zerfliessliche Masse, die sich in Wasser sehr leicht löst.
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 treated with a solution of the addition product of trimethylamine to chloroacetamethyl-trimethyl-ammonium chloride and the treated material is heated on it.
It is advisable to add an alkali salt of a weak acid, eg. B. add sodium acetate, and weakly acidify the solution, z. B. with formic acid.
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. <I> Example: </I> Cellulose is in an aqueous 10% solution of the addition product of trimethylamine with chloroacetamino-methyl-trimethyl-ammonium chloride of the formula
EMI0001.0030
with the addition of sodium acetate and so much formic acid,
that the solution reddened blue lacquer paper, removed at 30-400 for 15-30 minutes, squeezed, first dried at 50-60 0 and then heated to 110-115 'for four hours.
The easily rinsed cellulose obtained 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.
The quaternary ammonium salt used can be obtained as follows: 12.3 parts by weight of methylol chloroacetarnide are dissolved in 50 parts by volume of alcohol, added to 30 parts by volume of a benzene solution of trimethylamine of 22 percent by volume and left to stand overnight at the usual temperature.
9.5 parts by weight of trimethylamine chlorohydrate are then added and the mixture is refluxed for one hour. After the alcohol and benzene have been distilled off, the new quaternary ammonium compound remains as a colorless, deliquescent mass that dissolves very easily in water.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH208930T | 1938-05-31 | ||
CH211416T | 1938-05-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH211416A true CH211416A (en) | 1940-09-15 |
Family
ID=25724584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH211416D CH211416A (en) | 1938-05-31 | 1938-05-31 | Process for the production of cellulose which can be dyed with acidic dyes. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH211416A (en) |
-
1938
- 1938-05-31 CH CH211416D patent/CH211416A/en unknown
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