GB422556A - Stripping dyed textiles - Google Patents
Stripping dyed textilesInfo
- Publication number
- GB422556A GB422556A GB1048633A GB1048633A GB422556A GB 422556 A GB422556 A GB 422556A GB 1048633 A GB1048633 A GB 1048633A GB 1048633 A GB1048633 A GB 1048633A GB 422556 A GB422556 A GB 422556A
- Authority
- GB
- United Kingdom
- Prior art keywords
- treatment
- stripped
- minutes
- dyed
- mordant
- 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.)
- Expired
Links
Classifications
-
- 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
- D06P5/138—Fugitive dyeing or stripping dyes fugitive dyeing
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
Dyeings with alizarine or basic colours are stripped by treating the dyed material with an alkaline, acid or neutral liquor containing either (a) an amine, free from hydroxy groups, esterified or etherified hydroxy groups or heterocyclic oxygen, having attached directly or indirectly to the nitrogen atom a straight or branched chain of not less than 10 carbon atoms, or (b) a salt of such an amine, or (c) a quaternary ammonium salt, free from hydroxy groups, derived from a long chain (i.e. of not less than 10 carbon atoms) fatty acid monoamide of an arylene or alkylene diamine, or (d) a quaternary ammonium salt, free from hydroxy groups, having attached directly to the pentavalent nitrogen atom an unbroken chain of not less than 10 carbon atoms. The stripping may be effected in presence or absence of a reducing agent and/or soap or other detergent. Vegetable fibres are advantageously subjected to a supplementary chlorine bleach and animal fibres to a supplementary peroxide bleach. Specified amines and amine salts are b -diethylaminoethyloleyl amide, its acetate and hydrochloride, heptadecylamine and its hydrochloride. Specified quaternary ammonium salts are octadecyl- and cetyl-pyridinium bromides (cf. Specification 379,396), cetylpyridinium chloride (cf. Specification 392,763), octadecyltrimethylammonium iodide, cetyltrimethyl- and cetyltriethyl-ammonium bromides, cetyltrimethylammonium iodide, p - stearoamidophenyltrimethylammonium sulphate and b -stearoamidoethyldiethylamine methosulphate (cf. Specification 294,582, [Class 2 (iii)]). The following examples are specified. (1) Cotton dyed with turkey red is stripped to a pale brown by treatment for 30 minutes with a boiling dilute caustic soda solution containing sodium hydrosulphite and cetyl trimethylammonium bromide and is thereafter cleared to a white by treatment for 15--30 minutes at room temperature in dilute sodium hypochlorite. (2) Wool dyed a full red with alizarine on an aluminium mordant is stripped to a very pale pink by treatment for 20 minutes with a boiling dilute acetic acid solution containing Formosul and cetyltrimethylammonium bromide. (3) Cotton dyed with Auramine O on a tannin mordant is completely stripped by treatment for 30 minutes with a boiling dilute aqueous solution of octadecylpyridinium bromide. (4) Cotton dyed with Rhodamine 6GBS on a tannin mordant is stripped to a very pale pink by treatment for 30 minutes with a boiling dilute aqueous solution of cetyltrimethylammonium bromide. (5) Cotton dyed with Magenta P on a tannin mordant is stripped to a very weak bluish red by treatment for 30 minutes with a boiling dilute aqueous solution of the acetate of b -diethylaminoethyloleylamide. (6) Natural silk dyed with Acronol yellow T is stripped to a very pale yellow by treatment for 30 minutes with a boiling dilute aqueous solution of cetyltrimethylammonium bromide. (7) Natural silk dyed with Auramine O is almost completely stripped by treatment as in (6). Specification 400,239 also is referred to. Octadecyltrimethylammonium iodide is obtained by combining octadecyl iodide with trimethylamine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1048633A GB422556A (en) | 1933-04-07 | 1933-04-07 | Stripping dyed textiles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1048633A GB422556A (en) | 1933-04-07 | 1933-04-07 | Stripping dyed textiles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB422556A true GB422556A (en) | 1935-01-07 |
Family
ID=9968720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1048633A Expired GB422556A (en) | 1933-04-07 | 1933-04-07 | Stripping dyed textiles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB422556A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE742424C (en) * | 1942-05-29 | 1943-12-10 | Ig Farbenindustrie Ag | Process for lightening colorations with cellulose acetate dyes on structures made of superpolyamides, their copolymers, super-polyurethanes or on cellulose acetate |
-
1933
- 1933-04-07 GB GB1048633A patent/GB422556A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE742424C (en) * | 1942-05-29 | 1943-12-10 | Ig Farbenindustrie Ag | Process for lightening colorations with cellulose acetate dyes on structures made of superpolyamides, their copolymers, super-polyurethanes or on cellulose acetate |
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