GB355719A - Improvements in the dyeing of regenerated cellulose materials - Google Patents
Improvements in the dyeing of regenerated cellulose materialsInfo
- Publication number
- GB355719A GB355719A GB1892231A GB1892231A GB355719A GB 355719 A GB355719 A GB 355719A GB 1892231 A GB1892231 A GB 1892231A GB 1892231 A GB1892231 A GB 1892231A GB 355719 A GB355719 A GB 355719A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- brown
- dyeing
- regenerated cellulose
- sulphophenyl
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/02—Disazo dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Regenerated celluloses, dyeing.-Regenerated cellulose material e.g. viscose rayon is dyed with the dyestuffs obtained by tetrazotizing an aromatic diamine of the formula NH2(p)-Ar,X,Ar-NH2(p) where Ar = a phenylene nucleus devoid of acidic functions and X = O, SO2, CO or CH2 and coupling with M acid (1 : 5 : 7-aminonaphthol sulphonic acid) (2 mols.) in alkaline solution or with M acid (1 mol.) in alkaline solution or one molecular proportion of another coupling component not being an aminonaphtholsulphonic acid. In examples the following are specified. (1) 4 : 41-diaminobenzophenone \sQ M acid (2 mols.) (level brown), (2) M acid \sM 4 : 41 - diaminodiphenylmethane --> 2-naphthylamine-6-sulphonic acid (brown); using 1-41-sulphophenyl-3-methyl-5-pyrazolone, as second coupling component a yellowish-brown results, (3) M acid \sM 4 : 41-diaminodiphenylsulphone --> 1-41-sulphophenyl-3-methyl-5-pyrazolone (brown), (4)M acid \sM 4 : 41-diaminodiphenylether --> N.W acid (brownish-red).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1892231A GB355719A (en) | 1930-05-22 | 1930-05-22 | Improvements in the dyeing of regenerated cellulose materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1892231A GB355719A (en) | 1930-05-22 | 1930-05-22 | Improvements in the dyeing of regenerated cellulose materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB355719A true GB355719A (en) | 1931-08-24 |
Family
ID=10120758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1892231A Expired GB355719A (en) | 1930-05-22 | 1930-05-22 | Improvements in the dyeing of regenerated cellulose materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB355719A (en) |
-
1930
- 1930-05-22 GB GB1892231A patent/GB355719A/en not_active Expired
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