Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
213 words
Non-aqueous, atmospheric pressure, batch exhaust process for applying and fixing a disperse dye or brightening agent on a disperse dyeable synthetic polymer, said process comprising: a. immersing the polymer in a bath containing a dispersion comprising a liquid, organic continuous phase, a dispersing agent having dispersing activity in the continuous phase and at least one member of the group consisting of disperse dye and brightening agent, said continuous phase being a non-solvent for the dye or brightening agent; b. distillatively removing the continuous phase from the bath and replacing same, at a rate which is volumetrically proportional to the rate of removal of the continuous phase, with a liquid fluorocarbon which is miscible with the continuous phase and has a fluorine to carbon atom ratio of at least 1.5, a solubility parameter of no greater than 6.5 and a boiling point at 760 mm. pressure at least as high as the glass transition temperature of the polymer and at least 10° C. higher than that of the continuous phase; c. heating the polymer, in the presence of the liquid fluorocarbon, to at least its glass transition temperature and maintaining it at this temperature until the dye or agent is fixed on the polymer; and d. recovering polymer having dye or agent fixed thereon.
Claim 2
Dependent Claim
213 words
Non-aqueous, atmospheric pressure, batch exhaust process for applying and fixing a disperse dye or brightening agent on a disperse dyeable synthetic polymer, said process comprising: a. immersing the polymer in a bath containing a dispersion comprising a liquid, organic continuous phase, a dispersing agent having dispersing activity in the continuous phase and at least one member of the group consisting of disperse dye and brightening agent, said continuous phase being a non-solvent for the dye or brightening agent; b. distillatively removing the continuous phase from the bath and replacing same, at a rate which is volumetrically proportional to the rate of removal of the continuous phase, with a liquid fluorocarbon which is miscible with the continuous phase and has a fluorine to carbon atom ratio of at least 1.5, a solubility parameter of no greater than 6.5 and a boiling point at 760 mm. pressure at least as high as the glass transition temperature of the polymer and at least 10° C. higher than that of the continuous phase; c. heating the polymer, in the presence of the liquid fluorocarbon, to at least its glass transition temperature and maintaining it at this temperature until the dye or agent is fixed on the polymer; and d. recovering polymer having dye or agent fixed thereon.
Claim 3
Dependent Claim
10 words
Process of claim 1 wherein the polymer is a polyamide.
Claim 4
Dependent Claim
10 words
Process of claim 1 wherein the polymer is a polyester.
Claim 5
Dependent Claim
11 words
Process of claim 3 wherein the polyester is a polyethylene terephthalate.
Claim 6
Dependent Claim
10 words
Process of claim 1 wherein there is employed a dye.
Claim 7
Dependent Claim
11 words
Process of claim 1 wherein there is employed a brightening agent.
Claim 8
Dependent Claim
16 words
Process of claim 1 wherein the solubility parameter of the continuous phase is 7.0 - 8.2.
Claim 9
Dependent Claim
10 words
Process of claim 7 wherein the continuous phase is 1,1,2-trichloro-1,2,2-trifluoroethane.
Claim 10
Dependent Claim
35 words
Process of claim 1 wherein the liquid fluorocarbon has a solubility parameter of 5.5 - 6.5 and is of the formula F[CF(CF 3 )CF 2 O] n CHFCF 3 wherein n is at least 3.
Claim 11
Dependent Claim
9 words
Process of claim 9 wherein n is 6.5, average.
Claim 12
Dependent Claim
11 words
Process of claim 5 wherein the dye is a disperse dye.
Claim 13
Dependent Claim
11 words
Process of claim 5 wherein there is employed a dye carrier.
Claim 14
Dependent Claim
11 words
Process of claim 5 wherein there is employed a dyeing accelerator.