GB516076A - Process for producing fast tints on cellulosic fibres - Google Patents
Process for producing fast tints on cellulosic fibresInfo
- Publication number
- GB516076A GB516076A GB18253/38A GB1825338A GB516076A GB 516076 A GB516076 A GB 516076A GB 18253/38 A GB18253/38 A GB 18253/38A GB 1825338 A GB1825338 A GB 1825338A GB 516076 A GB516076 A GB 516076A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- aminophenol
- dyestuff
- partially
- coppered
- 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
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/64—Natural or regenerated cellulose using mordant dyes or metallisable dyes
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
516,076. Dyeing textiles. SOC. OF CHEMICAL INDUSTRY IN BASLE. June 20, 1938, Nos. 18253, and 18254. -Convention dates, June 19, 1937, and May 11, 1938. [Classes 2 (iii) and 15 (ii)] The fastness, e.g., to washing and light, of dyeings on cellulosic fibres, such as cotton or regenerated cellulose, with a direct cotton dyestuff containing in complex union one or more metals including at least one metal having an atomic weight above 53, but still capable of complex union with further metal, is improved by treatment with an agent or agents yielding at least one of the metals already present in the dyestuff complex. The' process of . Specification 468,362 is disclaimed. Specified metals of atomic weight above 53 are copper, manganese, iron, cobalt and nickel and chromium may be present in conjunction with these. The after-treatment of the dyeing may be effected in the dyebath or in a separate bath. In examples, (1) cotton is entered into a bath at 30-40‹ C. containing the unilaterally coppered compound of the dyestuff, 4-nitro-2-aminophenol (2 mols.) ## 5 : 5<1>-dihydroxy-2 : 2<1>-dinaphthylamine-7 : 7<1>-disulphonic acid (1 mol.) (cf. Specification 297,003, '[Class 2 (iii)]), the temperature is raised to boiling, Glauber salt is added and dyeing continued for ¥ hour at 95‹ C., an aqueous solution is added containing copper sulphate, tartaric acid and sufficient caustic soda to neutralize, dyeing is continued for a further hour at 90-95‹ C. and the goods are rinsed ; (2) the diazo component in (1) is replaced by 4-chloro-2-aminophenol and sodium carbonate is added to the dyebath ; (3) to (7) the dyestuff in (2) is replaced by (3) a partially coppered compound of the dyestuff, salicylic acid #benzidine# (acid) 2 : 5 : 7-aminonaphtholsulphonic acid (alkaline) #5-nitro-2-aminophenol (cf. Specification 12,932/15, [Class 2 (iii)]); (4) a partially coppered compound of the dyestuff 4-methyl-6-nitro-2-aminophenol (2 mols.) ## (alkaline) 2 : 5 : 7-aminonaphtholsulphonic acid (2 mols.) (acid) ##benzidine (1 mol.) (cf. Specification 12,932/15, [Class 2 (iii)]),; (5) a partially coppered compound of the dyestuff, salicylic acid #benzidine# (acid) 2 : 5: 7-aminonaphtholsulphonic acid (alkaline) #2-aminophenol-4-sulphonic-6-carboxylic acid (cf. Specification 12,932/15, [Class 2 (iii)]),; (6) a partially coppered compound of the dyestuff, salicylic acid #benzidine# (acid) 2 : 5 : 7-aminonaphtholsulphonic acid (alkaline) )#4-methyl-6-nitro- 2-aminophenol (cf. Specification 12,932/15, [Class 2 (iii)]) ; (7) a partially coppered compound as in (3) with the 5-nitro-2-aminophenol replaced by 4-nitro-2-aminophenol. The Specification as open to inspection under Sect. 91 is not restricted to the use of the partially metallized dyestuffs in which at least one metal has an atomic weight above 53 and specifies the use of partially chromed dyestuffs. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH516076X | 1937-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB516076A true GB516076A (en) | 1939-12-21 |
Family
ID=4517692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18253/38A Expired GB516076A (en) | 1937-06-19 | 1938-06-20 | Process for producing fast tints on cellulosic fibres |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB516076A (en) |
-
1938
- 1938-06-20 GB GB18253/38A patent/GB516076A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB609302A (en) | Manufacture of disazo-dyestuffs | |
GB516076A (en) | Process for producing fast tints on cellulosic fibres | |
GB531470A (en) | Process of dyeing | |
US2305747A (en) | Complex chromium compounds of ortho-hydroxyazo dyestuffs and process of making same | |
US3040020A (en) | Metal complex of x-cyanonaphtkyl- | |
US2054057A (en) | Azo dyestuffs containing chromium | |
GB493883A (en) | Manufacture of complex metal compounds of mordant azo-dyestuffs | |
GB532329A (en) | Production of fast tints on cellulose fibres | |
GB541692A (en) | Manufacture of chromium complex compounds of ortho-oxyazodyestuffs | |
GB307705A (en) | Manufacture of dyestuffs | |
GB532261A (en) | Manufacture of azo-dyestuffs | |
GB374186A (en) | Manufacture of new dyestuffs | |
GB460561A (en) | Manufacture of metalliferous azo-dyestuffs | |
GB852262A (en) | Metal-containing monoazo dyestuffs | |
GB315400A (en) | Manufacture of new dyestuffs | |
GB300916A (en) | Process for dyeing artificial silk of regenerated cellulose | |
GB543100A (en) | Manufacture of dyestuffs of the triazole series | |
GB490965A (en) | Manufacture of azo-dyestuffs | |
GB540125A (en) | Metalliferous substantive dyestuffs | |
US2054056A (en) | Azo dyestuffs | |
GB483564A (en) | Improvements in the production of valuable dyeings on mixed fabrics | |
GB297687A (en) | Manufacture of dyestuffs containing metal | |
GB349304A (en) | Manufacture of metalliferous dyestuffs | |
GB509360A (en) | Manufacture of dyestuffs containing metal | |
GB459949A (en) | Process for the manufacture of o-hydroxyazo dyestuffs |