Method for dyeing cellulose fiber material using fiber-reactive disazo dye and finishing the same

Claim 1

A method for producing dyed and finished products of cellulose fiber materials, which comprises dyeing cellulose fiber materials with a dye represented by a free acid of the following formula (I), ##STR16## wherein each of the groups, --W 1 --Q 1 and --W 2 --Q 2 in the formula (I) is independently a group represented by the following formula, ##STR17## wherein R 4 , R 5 and R 6 are independently a hydrogen atom or a lower alkyl group, X 1 is a fluorine or chlorine atom or a methylsulfonyl group, X 2 is a fluorine or chlorine atom or a methyl group, X 3 is a fluorine or chlorine atom, W is a direct linkage, a methylene group or a group of ##STR18## (in which R 4 is as defined above), Y is a group --SO 2 CH═CH 2 or --SO 2 CH 2 CH 2 Z (in which Z is a group capable of being split by the action of an alkali), A 3 is a hydrogen atom, an alkyl, phenyl or naphthyl group unsubstituted or substituted, or group of --A 4 --Y (in which Y is as defined above and A 4 is a phenylene or naphthylene group unsubstituted or substituted), A 1 and A 2 are independently a phenylene or naphthylene group unsubstituted or substituted, D is a residue of 1-amino-8-naphthol mono- or di-sulfonic acid, m and n are independently 0, 1 or 2, provided that they satisfy the formula, 0<m+n≦2, and each sulfo group appended to A 1 and A 2 is located at the carbon atom adjacent to the azo group, and then finishing the dyed fiber materials with a finishing agent capable of bonding with cellulose through a bridge formation wherein the finishing agent is at least one member selected from the group consisting of N-methylol compounds, aldehyde compounds of the formula, R--CHO, in which R is a hydrogen atom or an alkyl, cycloalkyl or haloalkyl group, acetal compounds of the formula, R'--CH(OR") 2 , in which R' is a hydrogen atom or an alkyl, cycloalkyl or haloalkyl group, and R" is a hydrogen atom or an alkyl group, epoxy compounds, vinyl compounds, aziridinyl compounds, polycarboxylic acid compounds, acylhalide compounds, isocyanate compounds and quaternary ammonium compounds.

Claim 2

A method for producing dyed and finished products of cellulose fiber materials, which comprises dyeing cellulose fiber materials with a dye represented by a free acid of the following formula (I), ##STR16## wherein each of the groups, --W 1 --Q 1 and --W 2 --Q 2 in the formula (I) is independently a group represented by the following formula, ##STR17## wherein R 4 , R 5 and R 6 are independently a hydrogen atom or a lower alkyl group, X 1 is a fluorine or chlorine atom or a methylsulfonyl group, X 2 is a fluorine or chlorine atom or a methyl group, X 3 is a fluorine or chlorine atom, W is a direct linkage, a methylene group or a group of ##STR18## (in which R 4 is as defined above), Y is a group --SO 2 CH═CH 2 or --SO 2 CH 2 CH 2 Z (in which Z is a group capable of being split by the action of an alkali), A 3 is a hydrogen atom, an alkyl, phenyl or naphthyl group unsubstituted or substituted, or group of --A 4 --Y (in which Y is as defined above and A 4 is a phenylene or naphthylene group unsubstituted or substituted), A 1 and A 2 are independently a phenylene or naphthylene group unsubstituted or substituted, D is a residue of 1-amino-8-naphthol mono- or di-sulfonic acid, m and n are independently 0, 1 or 2, provided that they satisfy the formula, 0<m+n≦2, and each sulfo group appended to A 1 and A 2 is located at the carbon atom adjacent to the azo group, and then finishing the dyed fiber materials with a finishing agent capable of bonding with cellulose through a bridge formation wherein the finishing agent is at least one member selected from the group consisting of N-methylol compounds, aldehyde compounds of the formula, R--CHO, in which R is a hydrogen atom or an alkyl, cycloalkyl or haloalkyl group, acetal compounds of the formula, R'--CH(OR") 2 , in which R' is a hydrogen atom or an alkyl, cycloalkyl or haloalkyl group, and R" is a hydrogen atom or an alkyl group, epoxy compounds, vinyl compounds, aziridinyl compounds, polycarboxylic acid compounds, acylhalide compounds, isocyanate compounds and quaternary ammonium compounds.