GB421802A - Improvements in or relating to the manufacture of azo dyestuffs - Google Patents
Improvements in or relating to the manufacture of azo dyestuffsInfo
- Publication number
- GB421802A GB421802A GB965133A GB965133A GB421802A GB 421802 A GB421802 A GB 421802A GB 965133 A GB965133 A GB 965133A GB 965133 A GB965133 A GB 965133A GB 421802 A GB421802 A GB 421802A
- Authority
- GB
- United Kingdom
- Prior art keywords
- black
- blue
- brown
- pontamine
- red
- 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
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Cosmetics (AREA)
Abstract
Azo dyes, preparing in special physical form.--Azo dyes are produced in the form of vitreous, non-dusting, readily soluble flakes, scales, grams or platelets by dispersing or colloidally suspending the dye in a suitable medium such as triethanolamine and drying the resulting suspension, preferably on a rotary drum drier. Trisodium phosphate may be added as an additional dispersing agent and in addition a protective colloid or binder may be added, such as preserver's syrup, casein, cane sugar, molasses, dextrin, gelatin, and cellulose glycollate, the mixture being then dried. The production of the following dyes in the form of water-soluble flakes is described in examples: Pontamine Black E, Pontamine Green B, Du Pont Basic Brown BR, Pontacyl Black BBO, Pontachrome Black F. Further dyes which may be similarly treated are Pontamine Blue BB, Blue AX, Fast Black FF, Green GX, Brown R, Brown D3GN, Fast Red F, and Scarlet B; Metanil Yellow, Pontacyl Sulphur Blue 5R, Blue Black SX, Ruby G, and Cloth Red 3G; Pontachrome Black A, Blue Black BB, Black PV, Flavine G, and Red B; Chrysoidine G and R; Basic Brown GX.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB965133A GB421802A (en) | 1933-03-30 | 1933-03-30 | Improvements in or relating to the manufacture of azo dyestuffs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB965133A GB421802A (en) | 1933-03-30 | 1933-03-30 | Improvements in or relating to the manufacture of azo dyestuffs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB421802A true GB421802A (en) | 1934-12-31 |
Family
ID=9876104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB965133A Expired GB421802A (en) | 1933-03-30 | 1933-03-30 | Improvements in or relating to the manufacture of azo dyestuffs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB421802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4175976A (en) | 1975-06-26 | 1979-11-27 | Avera Fitzhugh L | Non-dusting agent and method of manufacture |
-
1933
- 1933-03-30 GB GB965133A patent/GB421802A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4175976A (en) | 1975-06-26 | 1979-11-27 | Avera Fitzhugh L | Non-dusting agent and method of manufacture |
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