GB671243A - Improvements relating to dyeing processes and preparations therefor - Google Patents
Improvements relating to dyeing processes and preparations thereforInfo
- Publication number
- GB671243A GB671243A GB1753/50A GB175350A GB671243A GB 671243 A GB671243 A GB 671243A GB 1753/50 A GB1753/50 A GB 1753/50A GB 175350 A GB175350 A GB 175350A GB 671243 A GB671243 A GB 671243A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyestuffs
- dyestuff
- bath
- residue
- type
- 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
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/14—Wool
- D06P3/20—Wool using mordant dyes using metallisable dyes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S534/00—Organic compounds -- part of the class 532-570 series
- Y10S534/01—Mixtures of azo compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
- Y10S8/916—Natural fiber dyeing
- Y10S8/917—Wool or silk
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
Textile materials are dyed from an acid bath with an o,o1-dioxymonoazo dyestuff which is suitable for dyeing from a neutral or weakly alkaline, but not from an acid bath, in the presence of an o,o1-dioxymonoazo dyestuff which per se is suitable for dyeing from an acid bath. Suitable dyestuffs of the first type are those which are free from sulphonic acid and carboxyl groups and have the general formula HO-R1-N=N-R2-OH, in which R1 indicates an aromatic residue of the benzene series and R2 the residue of a coupling component such that the two OH- groups are in adjacent position to the azo group, and the whole dyestuff molecule may contain a single sulphonamide group. Other dyestuffs of the first type are free from sulphonic acid and carboxyl groups and have the general formula <FORM:0671243/IV (c)/1> in which R1 is a residue of the benzene series in which the azo group and the hydroxyl group are in o-position to each other, R3 is a phenyl residue and the whole dyestuff molecule contains a single sulphonamide group. The mixture of dyestuffs may be used according to the single-bath chroming process or the after-chroming process. In examples: (1) wool is dyed with a mixture of the following dyestuffs, of which the first two are of the first type referred to above <FORM:0671243/IV (c)/2> <FORM:0671243/IV (c)/3> <FORM:0671243/IV (c)/4> -with the addition of sodium sulphate and acetic acid, and after cooling the dyeing is chromed by adding potassium dichromate to the bath; (2) wool is dyed with a mixture of dyestuffs consisting of the first two dyestuffs of the previous example together with the dyestuff <FORM:0671243/IV (c)/5> and chromed as before. Many other suitable dyestuffs of the first and second type are specified. Specification 254,708, [Class 2 (iii)], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH169328X | 1949-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB671243A true GB671243A (en) | 1952-04-30 |
Family
ID=29256359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1753/50A Expired GB671243A (en) | 1949-02-11 | 1950-01-23 | Improvements relating to dyeing processes and preparations therefor |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2610103A (en) |
| AT (1) | AT169328B (en) |
| DK (1) | DK78163C (en) |
| GB (1) | GB671243A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2729629A (en) * | 1951-04-25 | 1956-01-03 | Sandoz Ag | Green substantive dyestuff mixtures and process of making same |
| US3285906A (en) * | 1964-02-03 | 1966-11-15 | Stange Co | Monoazo pyrazole dyes |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2058433A (en) * | 1932-10-15 | 1936-10-27 | Chem Ind Basel | Dyeing of acetate artificial silk |
| GB428767A (en) * | 1932-10-15 | 1935-05-13 | Chem Ind Basel | Improvements in the dyeing of cellulose acetate artificial silk |
-
1949
- 1949-12-29 AT AT169328D patent/AT169328B/en active
-
1950
- 1950-01-20 US US139794A patent/US2610103A/en not_active Expired - Lifetime
- 1950-01-23 GB GB1753/50A patent/GB671243A/en not_active Expired
- 1950-02-10 DK DK45350AA patent/DK78163C/en active
Also Published As
| Publication number | Publication date |
|---|---|
| US2610103A (en) | 1952-09-09 |
| AT169328B (en) | 1951-11-10 |
| DK78163C (en) | 1954-09-27 |
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