IT1031956B - Fixing of acid dyes on polyamide fibres - by treating with condsn. prods. of sulphonated 4,4'-dihydroxy diphenyl sulphone and aldehydes - Google Patents
Fixing of acid dyes on polyamide fibres - by treating with condsn. prods. of sulphonated 4,4'-dihydroxy diphenyl sulphone and aldehydesInfo
- Publication number
- IT1031956B IT1031956B IT2053375A IT2053375A IT1031956B IT 1031956 B IT1031956 B IT 1031956B IT 2053375 A IT2053375 A IT 2053375A IT 2053375 A IT2053375 A IT 2053375A IT 1031956 B IT1031956 B IT 1031956B
- Authority
- IT
- Italy
- Prior art keywords
- prods
- condnsn
- fixing
- aldehydes
- dihydroxy diphenyl
- Prior art date
Links
Landscapes
- Coloring (AREA)
Abstract
Fixatives to improve fastness of dyes on polyamide fibres, consisting of condnsn. prods. (A) from 4, 4'-dihydroxy diphenyl sulphone (I), its sulphonic acid derivs. and lower aliphatic aldehydes or their metal salts, in which the condnsn. prods. have average mol. wt. of 5000-30000 and a ratio of C to S atoms of 3-4.8:1. Also prepn. of the condnsn. prods., and fixing of dyed polyamide fabrics in baths contg. the condnsn. prods. at 95-120 degrees C. Fastness obtained is considerably better than by use of known condensates of similar type, and even better than by use of tannin/potassium antimony tartrate as fixative, without the cost, toxicity and effluent disposal problems of the latter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2053375A IT1031956B (en) | 1974-02-21 | 1975-02-21 | Fixing of acid dyes on polyamide fibres - by treating with condsn. prods. of sulphonated 4,4'-dihydroxy diphenyl sulphone and aldehydes |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49021232A JPS5239475B2 (en) | 1974-02-21 | 1974-02-21 | |
JP49114549A JPS5140482A (en) | 1974-10-03 | 1974-10-03 | Horiamidokeisenino senshokukenrodozoshinho |
IT2053375A IT1031956B (en) | 1974-02-21 | 1975-02-21 | Fixing of acid dyes on polyamide fibres - by treating with condsn. prods. of sulphonated 4,4'-dihydroxy diphenyl sulphone and aldehydes |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1031956B true IT1031956B (en) | 1979-05-10 |
Family
ID=27273071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2053375A IT1031956B (en) | 1974-02-21 | 1975-02-21 | Fixing of acid dyes on polyamide fibres - by treating with condsn. prods. of sulphonated 4,4'-dihydroxy diphenyl sulphone and aldehydes |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1031956B (en) |
-
1975
- 1975-02-21 IT IT2053375A patent/IT1031956B/en active
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