Affiliation:
1. Herman F. Mark Polymer Research Institute Polytechnic University Brooklyn, New York 11201 and Hebrew University Jerusalem, Israel
Abstract
Some results of work carried out on flame retarding of cotton and wool fabrics are reviewed.* Cotton fabrics are rendered flame retardant upon treatment with ammonium sulfamate (AS) with urea or a urea-based cross linking agent, as co-additive, in the pad-dry-cure finishing treatment, with curing at 180-200°C for one to three minutes. Wool fabrics are similarly treated with sul famic acid (SA) in the presence of urea at 140-160°C. In both cases a very high de gree of flame retardancy is obtained and the treated fabrics pass the vertical strip test (VST) also after fifty hard water alkaline launderings. In both cases, the fab rics retain their soft hand. In order to overcome the afterglow in cotton, a com bined sulfation-phosphorylation process was developed.
Subject
Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality
Reference22 articles.
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2. Guttmann, W. and F. Herbst. 1954. German Patent 904,542.
3. . Morton, T.H. 1950. British Patent 634,690.
4. Technology and Test Methods of Flameproofing of Cellulosics
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