Patent GB-952147-A (GB)
Title: Simultaneous dyeing and resin finishing of polypropylene textile materials
Inventor: MAHLING DIETER
IPC: D06P3/79
Filed: 1962-05-17
Abstract: Coloured solution or aqueous dispersion polymers are obtained by copolymerization of dyes which contain a polymerizable olefinic group (chromophoric monomers), non-coloured polymerizable compounds which contain groups accessible to condensation or addition reactions as well as olefinic groups (reactive monomers) and, optionally, other known polymerizable compounds (inert monomers). The chromophoric monomers may be derived from dyes of the azo, anthraquinone, triarylmethane, phthalocyanine, phenazine and oxazine series and may contain a group of the formula: <FORM:0952147/C3/1> wherein R is a hydrogen or halogen atom, a lower alkyl, hydroxyalkyl, cyano, carboxy or carboxylic acid ester group, X is a hydrogen or halogen atom, an alkyl, substituted or unsubstituted aromatic radical and Y a hydrogen or halogen atom or an alkyl group. The polymerizable group may be attached to the dye molecule by way of a phenylene, -C(O)-, -SO2- or -NR1- radical, R1 being a hydrogen atom or an alkyl radical. Numerous suitable inert and reactive monomers are listed. Polymerization may be carried out by bulk, precipitation, emulsion, suspension or solution polymerization.  Usual polymerization initiators may be used as well as the usual emulsifiers and protective colloids. The coloured polymers may be applied to textile materials of polypropylene in combination with number of other substances (see Division D2). In the examples copolymers are prepared from (1) butyl acrylate, butanediol monoacrylate, and 2, 4-dichloroaniline-->N-b -acryloylhydroxyethyl-N-ethylaniline in emulsion, (3) butyl acrylate, acrylonitrile, butanediol monoacrylate and 2-amino anisole-4-sulpho-n-butylamide--> N-ethyl-N-b -acryloyloxyethylaniline in emulsion, (4) butyl acrylate ethyl acrylate, N-methylol-methacrylamide and the dye from (1) in emulsion, (6) butyl acrylate, methyl methacrylate, N-methylolmethacryl-amide and N-acryloyl-p-phenylenediamine--> 1-(2-chloro-5-sulphophenyl)-3-methyl-5-pyrazolone in emulsion, (7) butyl acrylate, acrylonitrile, methyl methacrylate, N-methylolmethacrylamide and the dye from (6) in emulsion, (8) butyl acrylate, acrylamide, methyl methacrylate, butanediol monoacrylate and 2, 4-dichloroaniline--> N-ethyl-N-vinyloxy-ethylaniline in ethanol solution and (9) methyl methacrylate, butyl acrylate, acrolein, the dye from (1) in ethanol/toluene solution. Specifications 830,876, 858,183, 875,946 and 877,402 are referred to.ALSO:Textile materials of polypropylene are coated with solutions or aqueous dispersions of a coloured polymer obtainable by copolymerization of chromophoric monomers (i.e. dyes which contain a polymerizable olefinic group) with uncoloured polymerizable compounds at least some of which also contain groups capable of entering into cross-linking reactions (reactive monomers), and cross-linking the copolymers after application either alone or with the aid of suitable bi- or poly-functional compounds.  The chromophoric monomers may be based on dyes of the azo, anthraquinone, triarylmethane, phthalocyamine, phenazine and oxazine series which contain a polymerizable group of the formula <FORM:0952147/B1-B2/1> in which R is a hydrogen or halogen atom, a lower alkyl, hydroxyalkyl, cyano, carboxy or carboxylic acid ester group, X is a hydrogen or halogen atom, an alkyl or a substituted or unsubstituted aromatic radical and Y is a hydrogen or halogen atom or an alkyl group and in which the polymerizable group is attached to the dyestuff molecule by way of a phenylene, -C(O)-, -SO2- or -NR1-radical where R1 is a hydrogen atom or an alkyl group.  Numerous reactive and inert monomers are specified as are suitable cross-linking agents which include hexamethylenediisocyanate and its bisulphite compound, N,N1-dimethylol - butanediol - 1,4 - diurethane, tetramethylolacetylene - tetramethylolacetyleneurea and its tetrabutyl ether.  Cross-linking without a cross-linking agent may be accomplished by raising the temperature or changing the pH. Numerous suitable catalysts are specified.  The cross-linking agents and/or catalysts may be applied before, after or with the coloured copolymer.  The coated fabric may be dried and heated to 110-200  DEG C. to effect the cross-linking.  The coloured copolymers may also be used together with other resins, e.g. aminoplasts and water-soluble natural, synthetic and semi-synthetic substances such as starches, cellulose ethers, vegetable gums and polymers of carboxylic acids or their salts or amides.  Non-woven fabrics of polypropylene may be prepared with the present copolymers which then act as binding agent and dye.  With the aid of embossing rollers or graining presses artificial leathers may be prepared. Specifications 830,876, 858,183, 875,946 and 877,402 are referred to.ALSO:Textile materials of polypropylene are simultaneously dyed and finished by treatment with solutions or aqueous dispersions of a coloured polymer obtainable by copolymerization of chromophoric monomers (i.e. dyes which contain a polymerizable olefinic group) with uncoloured polymerizable compounds at least some of which also contain groups capable of entering into cross-linking reactions (reactive monomers), and cross-linking the copolymers after application either alone or with the aid of suitable bi- or poly-functional compounds.  The chromophoric monomers may be based on dyes of the azo, anthraquinone, triarylmethane, pthalocyamine, phenazine and oxazine series which contain a polymerizable group of the formula <FORM:0952147/D1-D2/1> in which R is a hydrogen or halogen atom, a lower alkyl, hydroxyalkyl, cyano, carboxy or carboxylic acid ester group, X is a hydrogen or halogen atom, an alkyl or a substituted or unsubstituted aromatic radical and Y is a hydrogen or halogen atom or an alkyl group and in which the polymerizable group is attached to the dye-stuff molecule by way of a phenylene, -C(0)-, -SO2- or -NR1- radical where R1 is a hydrogen atom or an alkyl group.  Numerous reactive and inert monomers are specified as are suitable cross-linking agents which include hexamethylenediisocyanate and its bisulphite compound, N, N1 -dimethylol-butanediol-1, 4-diurethane, tetramethylolacetyleneurea and its tetrabutyl ether. Cross-linking without a cross-linking agent may be accomplished by raising the temperature or changing the pH. Numerous suitable catalysts are specified.  The cross-linking agents and/or catalysts may be applied before, after or with the coloured copolymer.  The impregnated fabric may be dried and heated to 110-200 DEG C. to effect the cross-linking.  The coloured copolymers may also be used together with other textile finishes, e.g. aminoplasts and water-soluble natural, synthetic and semi-synthetic substances such as starches, cellulose ethers, vegetable gums and polymers of carboxylic acids or their salts or amids.  Examples are given. Non-woven fabrics of polypropylene may be prepared with the present copolymers which act as binding agent and dye.  With the aid of embossing rollers or graining presses artificial leathers may be prepared.  Specifications 830,876, 858,183, 875,946 and 877,402 are referred to.