Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
112 words
The process of texturing a high polymer textile material comprising the steps of moving a beam of homogeneous high energy irradiation so as to impinge upon the material and to cause formation of chemically active species in said material, subjecting selected localized surface areas of the material to a heat treatment prior to or after said irradiation for a sufficient time to destroy or prevent the formation of said active species in said areas; and finally treating the material with a shrinking medium by reaction with said chemically active species so as to cause a differential shrinkage between said heat treated and said non-heat treated areas and thus accomplishing a texturing effect.
Claim 2
Dependent Claim
112 words
The process of texturing a high polymer textile material comprising the steps of moving a beam of homogeneous high energy irradiation so as to impinge upon the material and to cause formation of chemically active species in said material, subjecting selected localized surface areas of the material to a heat treatment prior to or after said irradiation for a sufficient time to destroy or prevent the formation of said active species in said areas; and finally treating the material with a shrinking medium by reaction with said chemically active species so as to cause a differential shrinkage between said heat treated and said non-heat treated areas and thus accomplishing a texturing effect.
Claim 3
Dependent Claim
31 words
The process of claim 1 wherein the heat treatment is effected homogeneously following the irradiation step so as to deactivate or destroy the previously activated species in the localized heated areas.
Claim 4
Dependent Claim
45 words
The process of claim 1 wherein the heat treatment is effected prior to the irradiation step so as to make the high polymer non-responsive to the radiation in the localized heated areas and thus to prevent the formation of chemically active species in these areas.
Claim 5
Dependent Claim
26 words
The process of claim 1 wherein the heat treatment is effected by contacting the material with a heated profiled roller or with a heated knife edge.
Claim 6
Dependent Claim
28 words
The process of claim 1 wherein the treatment with the shrinking medium is effected by passing the material through a bath containing a solution of the shrinking medium.
Claim 7
Dependent Claim
26 words
The process of claim 1 wherein the high-polymer material is composed of a resin adapted to develop free radicals or ions under the action of irradiation.
Claim 8
Dependent Claim
22 words
The process of claim 1 wherein the high-polymer material is selected from the group consisting of polyamides, polyesters, polyolefins, cellulose and polyacrylonitriles.
Claim 9
Dependent Claim
27 words
The process of claim 7 wherein the high-polymer material is selected from the group consisting of polyamide-6, polyamide-6.6, polyethylene terephthalate, polyethylene, polypropylene, polyacrylonitrile homopolymer and polyacrylonitrile copolymer.
Claim 10
Dependent Claim
15 words
The process of claim 1 wherein the irradiation is effected by an electron beam accelerator.
Claim 11
Dependent Claim
14 words
The process of claim 1 wherein the shrinking medium is a monomeric vinyl compound.
Claim 12
Dependent Claim
26 words
The proceess of claim 1 wherein the shrinking medium is selected from the group consisting of acrylamide, acrylic acid, styrene, acrylonitrile, itaconic acid, divinylbenzene, and triallylcyanurate.
Claim 13
Dependent Claim
29 words
The process of claim 1 wherein the shrinking medium is a monomeric compound which is grafted upon the high-polymer material in the irradiated areas other than said heat-treated areas.
Claim 14
Dependent Claim
81 words
The process of claim 1 wherein the high-polymer material is subjected to said heat treatment of localized areas at about 70° to 200° C. subsequent to irradiation from an electron beam accelerator followed by passing the material at an elevated temperature through a bath of a solution of a monomeric material thereby causing grafting of the monomeric material upon the irradiated portions of the high polymer material other than said heat treated localized areas so as to effect said differential shrinkage.
Claim 15
Dependent Claim
25 words
The process of claim 1 wherein the heat treatment is effected by exposing localized areas of the material to hot air, hot water or steam.
Claim 16
Dependent Claim
52 words
The process of claim 1 wherein the treatment with the shrinking medium is effected by exposing the material throughout its surface to hot air, hot water or steam or by passing the material through a hot air tunnel, the said treatment step being effected at a temperature of 80° to 150° C.
Claim 17
Dependent Claim
22 words
The process of claim 1 wherein the high energy radiation is of an energy of between about 100 keV and 3 MeV.
Claim 18
Dependent Claim
17 words
The process of claim 1 wherein the radiation dose is between 5.10 5 to 5.10 7 rad.
Claim 19
Dependent Claim
26 words
The process of claim 1 wherein the time of the heat treatment is between 0.2 and 20 seconds at a temperature between 70° and 200° C.