Agents for non-formaldehyde durable press finishing and textile

Details Agents for non-formaldehyde durable press finishing and textile Agents for non-formaldehyde durable press finishing and textile

1988-08-08

1990-02-13

Cannon, James C.

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Cellulose fibers

536 95, 549476, 568603, C07C 4330, C07C 43303, C08B 1102, C08B 11193

Patent

active

049003240

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.

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Irvin et al., Textile Res. J., Feb., 1958, pp. 148-158.
J. G. Frick, Jr., "Bonding in Cotton Fiber from Formaldehyde-Free Crosslinks," J. Appl. Polym. Sci. 30: 3467-3477 (1985) [SRRC #7329].
J. G. Frick, Jr. et al., "Acetals as Crosslinking Reagents for Cotton," J. Appl. Polym. Sci., 29: 1433-1447 (1984) [SRRC #7170].
E. J. Witzeman et al., "dl-Glyceraldehyde Diethyl Acetal," Organic Synthesis, vol. II: 307-308 (1943).
ASTM Standard D 1295-67, "Wrinkle Recovery of Woven Textile Fabrics Using the Vertical Strip Apparatus," 1977 Annual Book of ASTM Standards pp. 216-219 (Part 32), American Society for Testing and Materials, Phila., PA.

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