GB488258A - Improvements in or relating to dry powdered materials - Google Patents
Improvements in or relating to dry powdered materialsInfo
- Publication number
- GB488258A GB488258A GB3572736A GB3572736A GB488258A GB 488258 A GB488258 A GB 488258A GB 3572736 A GB3572736 A GB 3572736A GB 3572736 A GB3572736 A GB 3572736A GB 488258 A GB488258 A GB 488258A
- Authority
- GB
- United Kingdom
- Prior art keywords
- salt
- potassium
- suspension
- dyes
- water
- 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)
- Coloring (AREA)
Abstract
Dry powdered compositions, readily dispersible in aqueous media, are obtained by mixing insoluble or difficultly soluble dyestuffs, or other solid substances, with a potassium salt of a saturated soap-forming fatty acid, which salt is crystallizable from water and substantially free from glycerine. A suspension of the potassium salt may be mixed with a suspension of the solid, evaporated to dryness and ground. The fatty acid salt preferably contains at least 14 carbon atoms, potassium stearate and palmitate being specified. Vat dyes or water-insoluble dyes having an affinity for cellulose acetate artificial silk such as aminoanthraquinone nitrodiarylamine, azo and "S.R.A." dyes, in general, or insoluble solid dyestuff intermediates may be treated. The production of white or coloured pigments is also referred to. In the example commercial sodium stearate is treated with hydrochloric acid, the stearic acid separated, washed with water and treated with water and potassium carbonate; to the cooled suspension of crystalline potassium stearate a paste of a -ethanolaminoanthraquinone is added and the mixture is evaporated to dryness and powdered. The compositions preferably contain 20-30 per cent of the potassium salt.ALSO:Dry powdered compositions, readily dispersible in aqueous media, are obtained by mixing insoluble or difficultly soluble solid substances with a potassium salt of a saturated soap - forming fatty acid, which salt is crystallizable from water and substantially free from glycerine. A suspension of the potassium salt may be mixed with a suspension or dispersion of the solid, evaporated to dryness and ground. The fatty acid salt preferably contains at least 14 carbon atoms, potassium stearate and palmitate being specified. Vat or other insoluble dyes or intermediates or white or coloured pigments are produced in dry powdered form readily capable of dispersion. The compositions contain 20-30 per cent of the potassium salt. Dispersions of aminoanthraquinones, e.g. a - ethanolaminoanthraquinone, nitrodiarylamines, azo and S.R.A. dyes in general are especially suitable for use in dyeing cellulose acetate artificial silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3572736A GB488258A (en) | 1936-12-30 | 1936-12-30 | Improvements in or relating to dry powdered materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3572736A GB488258A (en) | 1936-12-30 | 1936-12-30 | Improvements in or relating to dry powdered materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB488258A true GB488258A (en) | 1938-06-30 |
Family
ID=10380911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3572736A Expired GB488258A (en) | 1936-12-30 | 1936-12-30 | Improvements in or relating to dry powdered materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB488258A (en) |
-
1936
- 1936-12-30 GB GB3572736A patent/GB488258A/en not_active Expired
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