Wrinkle-resistant and durable-press cotton-containing fabric by treatment with acrylamide and glyoxal
AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorsJohn G. Frick, Jr., Robert J. Harper, Jr.
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Abstract
Cotton, or other fabric containing cellulose, is treated with acrylamide and a chemical initiator that promotes reaction of acrylamide with cellulose. The fabric, with bound acrylamide, is then treated with glyoxal and an acidic, metal salt catalyst to produce a fabric containing crosslinked cellulose. Thus, the fabric is given wrinkle resistance and durable-press properties by the treatment without using formaldehyde, free or combined, that could be released during treatment or from the treated fabric.
Claims9
A process for imparting increased wrinkling resistance to fabric without the use of materials made from formaldehyde comprising in combination:
- (a) padding an unsaturated amide to fabric with a chemical initiator said chemical initiator selected from the group consisting of about 1% sodium carbonate or 0.01-0.10% ammonium persulfate;
- (b) heating the prepared fabric for about 3-5 minutes at 120.degree.-160.degree. C. to promote reaction of the unsaturated amide with cellulose in the fabric;
- (c) then, applying glyoxal to the fabric with an acidic catalyst;
- (d) heating the fabric to cause reaction of the glyoxal with amide groups under the influence of the catalyst.
Dependencies are inferred from the claim text.