Agents for non-formaldehyde durable press finishing and textile products therefrom
AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorsLeon H. Chance, Gary F. Danna, Bethlehem K. Andrews
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Abstract
The acetals, 2,3-dihydroxy-1,1,4,4-tetramethoxybutane, 3,4-dihydroxy-2,5-dimethoxytetrahydrofuran, and glyceraldehyde dimethylacetal, when applied to cotton fabric by conventional pad-dry-cure procedures using special combined acid catalysts, were found to crosslink cellulose hydroxy groups at a very rapid rate (e.g., 20 seconds at 160.degree. C.), thereby imparting improved wrinkle recovery in the range of that required for durable press finishing. Cotton fabrics treated with these acetals have the advantage of no formaldehyde release.
Claims15
A composition for crosslinking cellulosic material comprising:
- a hydroxy acetal of the structure (RO).sub.2 --CH--CHOH--CHOH--CH(OR).sub.2, wherein R is alkyl and a catalyst capable of inducing a crosslinking reaction between said cellulosic material and said acetal.
A composition for crosslinking cellulosic material comprising:
- a hydroxy acetal, a catalyst capable of inducing a crosslinking reaction between said cellulose material and said acetal, and a catalyst activator.
A process for producing wrinkle-resistant cellulosic fabric comprising:
- applying a hydroxy acetal of the formula:
- ##STR3## wherein R is alkyl, n is 1 to 4, and X is selected from:
- ##STR4## or hydrogen;
- or ##STR5## applying a catalyst to said fabric;
- and treating said fabric under conditions to cause crosslinking between said fabric and said acetal.
A process for producing a wrinkle-resistant cellulosic fabric comprising:
- applying a hydroxy acetal, a catalyst, and a catalyst activator to said fabric;
- treating said fabric under conditions to cause crosslinking between said fabric and said acetal.
A cellulosic composition having a plurality of crosslinks selected from the structures ##STR6## wherein "cell" is cellulose, R is selected from the group consisting of alkyl and cellulose, n is 1 to 4, and X is selected from ##STR7## provided that when X is --CH.sub.2 OH or hydrogen, R is cellulose.
Dependencies are inferred from the claim text.