Patent GB-964757-A (GB)
Title: Anthraquinone dyes
Inventor: BEYER KARL-HEINZ
IPC: D06L4/657
Filed: 1962-12-27
Abstract: In Examples 52 to 67 there are polymerized in aqueous dispersion mixtures of butyl acrylate, methacrylamide, methyl methacrylate, and a dye ester of the formula: <FORM:0964757/C3/1> where R1' has alkyl and alkoxyalkyl values, and the blue violet aqueous dispersion obtained is used to dye and resin-finish cotton fabric by application in the presence of a solution of the dimethylol compound of butene-1:4-diurethane, ammonium nitrate and a dispersing agent.  In Example 68, a polymer dispersion made by emulsion polymerization of butyl acrylate and methacrylic acid methylolamide is mixed with butyl acrylate and a dye ester of the above formula where R1' is isobutyl, and graftpolymerized by exposure to radiation.  The mixture is mixed with the dimethylol compound of butanediol-1,4-diurethene, ammonium nitrate and a dispersing agent and used to dye and resinfinish cotton fabric.  Specifications 790,728, 877,402, 920,390, 924,584, and 949,404 are referred to.ALSO:The invention comprises dyes of the formula <FORM:0964757/C4-C5/1> where R1 is an aliphatic radical whose carbon chain may be interrupted by hetero atoms and R2 is an aliphatic, cycloaliphatic or araliphatic radical, especially a vinyl radical. The dyes are made by acylating a compound of the formula <FORM:0964757/C4-C5/2> with an acylating agent of the formula R2-CO-X where X is -OH or the radical of an inorganic or organic acid. Values specified for R1 include alkyl radicals of one to eight carbon atoms, b -alkoxyethyl, b 1-alkoxy-b -ethoxyethyl groups and the allyl group, and for R2 include vinyl, alkyl radicals of one to five carbon atoms, chlormethyl, ethoxymethyl, cyclo-octyl and acetoxymethyl.  The dyes dye linear polyesters in blue to violet shades and those wherein R2 is vinyl form coloured copolymers with olefinic compounds (see Division C3). Specifications 790,728, 877,402, 920,390, 924,584 and 949,404 are referred to.ALSO:Cotton is dyed blue to violet shades and resin-finished using coloured copolymers derived from the dyes of the formula:-  <FORM:0964757/D1-D2/1> where R1\sv is a branched or linear, saturated aliphatic radical having two to eight carbon atoms whose carbon chain may be interrupted by one or more hetero atoms, copolymerized with other olefinically unsaturated compounds.  In Examples 52 to 67, polymerization is initiated in an aqueous mixture of butyl acrylate, methacrylamide and dispersing agents and an aqueous mixture of butyl acrylate, methacrylamide, methyl methacrylate, dispersing agents and a dye of the above formula where R1\sv has alkyl and alkoxyalkyl values, the aqueous dispersion obtained is mixed with an aqueous solution containing the dimethylol compound of butanediol-1:4-diurethane, ammonium nitrate and a dispersing agent and used to impregnate cotton fabric which is then stretched on a frame and dried at 140 DEG C. for one hour to give a dyed, resin-finished fabric.  In Example 68, a polymer dispersion made by emulsion polymerisation of butyl acrylate and methacrylic acid methylolamide is mixed with butyl acrylate and a dye of the above formula where R1\sv is isobutyl, and graft-polymerized by exposure to radiation.  The mixture obtained is mixed with the dimethylol compound of butanediol-1:4-diurethane, ammonium nitrate and a dispersing agent and used to impregnate cotton fabric which is then stretched on a frame and dried at 140 DEG C. for one hour to give a dyed, resin-finished fabric.  Specifications 790,728, 877,402, 920,390, 924,584 and 949,404 are referred to.