GB359643A - Improvements in the manufacture and production of colour lakes - Google Patents
Improvements in the manufacture and production of colour lakesInfo
- Publication number
- GB359643A GB359643A GB2688230A GB2688230A GB359643A GB 359643 A GB359643 A GB 359643A GB 2688230 A GB2688230 A GB 2688230A GB 2688230 A GB2688230 A GB 2688230A GB 359643 A GB359643 A GB 359643A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- acrylic acid
- water
- salt
- styrene
- 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
- C09B69/00—Dyes not provided for by a single group of this subclass
- C09B69/02—Dyestuff salts, e.g. salts of acid dyes with basic dyes
- C09B69/04—Dyestuff salts, e.g. salts of acid dyes with basic dyes of anionic dyes with nitrogen containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
Lakes; urea-formaldehyde condensation products.-Acid dyestuffs are converted into lakes in presence of aqueous solutions of amorphous polymerization products derived from aliphatic polymerizable compounds containing a CO group, viz. water-soluble amorphous polymerization products from the condensation of urea or its derivatives, such as thiourea, with aliphatic aldehydes, e.g. formaldehyde, or from a methylolurea, or neutralized water-soluble amorphous polymerization products (a) of acrylic acid or its homologues, (b) from acrylic acid and styrene, (c) from acrylic acid and vinyl alkyl ethers or vinyl esters, or (d) from maleic acid and styrene. Organic dispersing agents, such as turkey red oil, inspissated sulphite waste liquor, sulphonic acids of naphthalene or alkylnaphthalenes or resin soaps, and/or water-soluble organic solvents, such as methanol, ethanol, ethylene glycol, or glycerol, may also be present. Any acid dyestuffs capable of conversion into water-insoluble salts with bases such as calcium, barium, aluminium, or iron may be used, e.g. azo dyes containing one or more carboxyl and/or sulphonic groups and acid triphenylmethane dyes. The products are distinguished from the lakes obtained without the use of the polymerization products by their smaller covering power, by their freedom from objectionable strong bronze lustre in saturated oil coatings from drying or non-drying vegetable oils or from dispersions in alcohols or cellulose lacquers, and by their valuable strong bluish shades especially when additions such as zinc white are present. The following examples are specified. (1) An aqueous preparation containing the dyestuff 5-aminotoluene-2 - sulphonic acid --> b - naphthol, colophony-sodium soap, the sodium salt of polymerized acrylic acid, sodium acetate, and barium chloride is heated to 70 DEG C. and the product is worked up in the usual manner. (2) An aqueous preparation containing the dyestuff 4-aminotoluene-3-sulphonic acid --> 2 : 3-oxynaphthoic acid, colophony-sodium soap, calcium chloride, and a condensation product obtained by heating dimethylolurea and formaldehyde in feebly acid solution at 95 DEG C. and subsequent neutralization with trisodium phosphate, is heated to 80 DEG C. and the product is worked up in the usual manner. (3) An aqueous preparation containing Lithol red R, colophony-sodium soap, caustic soda, calcium chloride, and a condensation product obtained by heating urea and formaldehyde in a feebly acid solution at 80 DEG C. and subsequent neutralization with trisodium phosphate, is heated to 100 DEG C., and after 2 hours at that temperature the lake is filtered, washed with hot water and dried; the product is a bordeaux red clear modification of the calcium salt of the dyestuff and contains 2 per cent of the salt of the condensation product and 5-15 per cent of calcium rosinate; instead of the above condensation product polymerization products from acrylic acid and styrene, from maleic acid and styrene, from acrylic acid and vinyl ethyl ether, or from saponified acrylic nitrile may be employed. Polymerized acrylic acid is obtained in the form of its sodium salt by saponifying polymeric acrylic nitrile with 110 per cent of the stoichiometrical quantity of caustic soda in presence of sufficient water to give a 25 per cent solution of the sodium salt at 85-92 DEG C. and drying the salt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2688230A GB359643A (en) | 1930-09-09 | 1930-09-09 | Improvements in the manufacture and production of colour lakes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2688230A GB359643A (en) | 1930-09-09 | 1930-09-09 | Improvements in the manufacture and production of colour lakes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB359643A true GB359643A (en) | 1931-10-29 |
Family
ID=10250684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2688230A Expired GB359643A (en) | 1930-09-09 | 1930-09-09 | Improvements in the manufacture and production of colour lakes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB359643A (en) |
-
1930
- 1930-09-09 GB GB2688230A patent/GB359643A/en not_active Expired
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