Process for improving abrasion resistance of resilient fabrics and the product produced

Claim 2

A PROCESS FOR TREATING A CELLULOSIC FABRIC TO PRODUCE A COMMERCIALLY ACCEPTABLE DURABLE-PRESS FABRIC WITH PROCESS CONSISTS OF: A. PADDING THE CELLULOSIC FABRIC THROUGH A RESIN BATH AT A PH OF ABOUT 2 WHICH BATH CONTAINS FROM ABOUT 10 TO 20 WEIGHT PERCENT OF AMETHYLATED METHYLOLMELAMINE, FROM ABOUT 5 TO 20 WEIGHT PERCENT OF A CROSSLINKING AGENT SELECTED FROM A GROUP CONSISTING OF N,N-DIMETHYLOL CARBAMATES AND N,N''-DIMETHYLOL DIHYDROXYETHLENEUREA AND FORM ABOUT 10 TO 20 WEIGHT PERCENT OF TETRAETHYLENE GLYCOL DIMETHYL ETHER, B. HEATING THE PADDED CELLULOSIC FABRIC IN AN OPEN STATE AT A TEMPERATURE OF ABOUT 58*C. FOR A PERIOD OF ABOUT 3 MINUTES TO PERMIT UNRESTRAINED EVAPORATION OF MOISTURE FROM SAID FABRIC AND, WITHOUT ANY FURTHER HEATING, THEN NEUTRALIZING, WASHING AND DRYING THE CELLULOSIC FABRIC, C. PADDING THE WASHED AND DRIED CELLULOSIC FABRIC FROM STEP (B) WITH AN AQUEOUS SOLUTION FREE OF CROSSLINKING AGENT CONTAINING FROM ABOUT 0.5 TO 4.0 WEIGHT PERCENT OF AN ACID CATALYST SELECTED FROM AGROUP CONSISTING OF MAGNESIUM CHLORIDE HHEXAHYDRATE ANDZINC NITRATE HEXAHYDRATE AND FROM ABOUT 0 TO 2 WEIGHT PERCENT OF EMULSIFIED POLYETHYLENE, D. DRYING THECELLULOSIC FABRIC FROM STEP (C) FOR A PERIOD OF ABOUT 7 MINUTES AT A TEMPERATURE OF ABOUT 60*C., AND (E) CURING THE FABRIC FROM STEP (D) FOR A PERIOD FROM ABOUT 3 TO 5 MINUTES AT A TEMPERATURE OF ABOUT 160*C.

Claim 3

A process for treating a cellulosic fabric to produce a commercially acceptable durable-press fabric which process consists of: a. padding a cellulosic fabric in an aqueous solution containing about 12 weight percent of an anionic, emulsifiable, high molecular weight polyurethane, b. drying the padded cellulosic fabric for a period of about 10 minutes at a temperature of about 60* C., c. padding the cellulosic fabric from (b) through a resin bath which bath contains from about 10 to 20 weight percent of a methylated methylolmelamine, from about 5 to 10 weight percent of a crosslinking agent selected from a group consisting of N, N-dimethylol carbamates and N,N''-dimethylol dihydroxyethyleneurea and from about 10 to 20 weight percent of tetraethylene glycol dimethyl ether, d. heating the cellulosic fabric from (c) in an open state at a temperature of about 58* C. for a period of about 3 minutes to permit unrestrained evaporation of moisture from said fabric and, without any further heating, then neutralizing, washing and drying the cellulosic fabric, e. padding the washed and dried cellulosic fabric from step (d) with an aqueous solution free of crosslinking agent and containing from about 0.5 to 4.0 weight percent of an acid catalyst selected from a group consisting of magnesium chloride hexahydrate and zinc nitrate hexahydrate and from about 0 to 2 weight percent of emulsified polyethylene, f. drying the cellulosic fabric from step (e) for a period of about seven minutes at a temperature of about 60* C., and g. curing the fabric from step (f) for a period from about 3 to 5 minutes at a temperature of about 160*.

Claim 4

A process for treating a cellulosic fabric to produce a commercially acceptable durable-press fabric which process consists of: a. padding a cellulosic fabric in an aqueous solution containing about 12 weight percent of an anionic, emulsifiable, high molecular weight polyurethane, b. drying the padded cellulosic fabric for a period of about 10 minutes at a temperature of about 60* C., c. padding the cellulosic fabric from (b) through a resin bath which bath contains from about 10 to 20 weight percent of a methylated methylolmelamine, from about 5 to 10 weight percent of a crosslinking agent selected from a group consisting of N, N-dimethylol carbamates and N,N''-dimethylol dihydroxyethyleneurea and from about 10 to 20 weight percent of tetraethylene glycol dimethyl ether, d. heating the cellulosic fabric from (c) in an open state at a temperature of about 58* C. for a period of about 3 minutes to permit unrestrained evaporation of moisture from said fabric and, without any further heating, then neutralizing, washing and drying the cellulosic fabric, e. padding the washed and dried cellulosic fabric from step (d) with an aqueous solution free of crosslinking agent and containing from about 0.5 to 4.0 weight percent of an acid catalyst selected from a group consisting of magnesium chloride hexahydrate and zinc nitrate hexahydrate and from about 0 to 2 weight percent of emulsified polyethylene, f. drying the cellulosic fabric from step (e) for a period of about seven minutes at a temperature of about 60* C., and g. curing the fabric from step (f) for a period from about 3 to 5 minutes at a temperature of about 160*.

Claim 5

The product produced by the process of claim 1.

Claim 6

The product produced by the process of claim 2.