Patent GB-874620-A (GB)
Title: Process for dyeing organic products with pigment dyestuffs
IPC: C09B6/00
Filed: 1958-05-08
Abstract: Organic products such as lacquers, plastic compositions, and natural and artificial fibres are coloured with a pigment dyestuff of the formula: <FORM:0874620/IV (a)/1> wherein each A represents an anthraquinoid residue and Z represents an amino group which may be substituted by, for example, an ethyl group, a benzene residue or another anthraquinoid residue.  The anthraquinoid residues may contain as a nuclear substituent a methoxy or benzoylamino group. Examples describe the use of the above pigments for colouring (1) a composition comprising polyvinyl chloride, dioctyl phthalate, cadmium stearate and titanium dioxide which is rolled to form a foil, (2) a nitrocellulose lacquer containing titanium dioxide, (3) acetyl cellulose which is then dissolved in acetone and dry-spun into filaments, (6) an alkyd-melamine bakeable lacquer containing titanium dioxide and (7) viscose which is then spun into filaments.  Example 8 describes the dyeing of cotton from a bath containing, in addition to the pigment dyestuff, an isobutyl acrylate-acrylonitrile-acrylic acid copolymer latex, an aqueous emulsion of a methylol-melamine allyl ether modified with soya bean fatty acid, a water-soluble methyl ether of a urea-formaldehyde condensation product and formic acid. Example 9 describes a textile printing paste containing an aqueous binding agent and an ethylene oxide-nonyl phenol condensation product, in addition to the pigment dyestuff which has been incorporated into a composition comprising a solution of a melamine-formaldehyde condensation product etherified with butanol, a vinyl chloride-vinyl acetate copolymer plasticized with dioctadecyl phthalate and xylene.  The pigment dyestuffs employed in the examples are those prepared from 1 mol of cyanuric chloride and 3 mols of 1-amino-, 1-amino-5-benzoylamino-, 1-amino-6-chloro-, 1-amino-6(7)-methoxy-and 1-amino-4-phenylamino-anthraquinone or 3 mols of 5-amino-isothiazoleanthrone or of 4-aminoantraquinone-1(N), -2-benzacridone.  Others described are of the formula: <FORM:0874620/IV (a)/2> Specification 375,056 is referred to.ALSO:Natural and artificial fibres (including paper pulp) are coloured with a pigment dyestuff of the formula:- <FORM:0874620/IV(c)/1> wherein each A represents an anthraquinoid residue and Z represents an amino group which may be substituted by, for example, an ethyl group, a benzene residue or another anthraquinoid residue.  The anthraquinoid residues may contain as a nuclear substituent a methoxy or benzoylamino group.  Example 8 describes the dyeing of cotton from a bath containing, in addition to the pigment dyestuff, an isobutyl acrylate-acrylonitrile-acrylic acid copolymer latex, an aqueous emulsion of a methylolmelamine allyl ether modified with soya bean fatty acid, a water-soluble methyl ether of a urea-formaldehyde condensation product and formic acid. Example 9 describes a textile printing paste containing an aqueous binding agent and an ethylene oxide-nonyl phenol condensation product, in addition to the pigmentdyestuff which has been flushed with a composition comprising a solution of a melamineformaldehyde condensation product etherified with butenol, a vinyl chloride-vinyl acetate copolymer plasticized with dioctadecyl phthalate and xylene. The pigment dyestuffs employed in the examples are those prepared from 1 mol of cyanuric chloride and 3 mols of 1-amino-, 1-amino-5-benzoylamino-, 1-amino- 6-chloro-, 1-amino- 6(7)-methoxy- and 1-amino- 4-phenylamino-anthraquinone or 3 mols of 5-aminoisothiazoleanthrone or of 4-aminoanthraquinone-1(N), -2-benzacridone.  Others described are of the formula:- <FORM:0874620/IV(c)/2> Specification 375,056 is referred to.