| 摘要 |
FIELD: textiles, paper.SUBSTANCE: invention relates to the flame resistant textiles that can be used for overalls and web to protect against electric arc and fire exposure. The fire-resistant textile comprises fabric of satin weaving consisting of 70-100 wt % cellulosic fibres and 0-30 wt % thermoplastic synthetic fibres. The fabric has the thickness of at least 19.5 mils, the thickness of at least 25 mils after 3 domestic washes at 120°F, the air permeability of at least 60 cubic ft/min and weight less than about 7 oz/yard. Satin weaving fabric also comprises the impregnation, which comprises salt of tetrakis(hydroxymethyl) phosphonium or its condensation product and a chemical substance selected from the group consisting of urea, guanidines, guanylurea, glycoluril and polyamines. After curing by heating and oxidation the part of cellulosic fibres comprises the polymerised phosphate compound of pentavalent phosphorus.EFFECT: invention provides lightness of fabric and the necessary protection against electric arc and fire exposure.26 cl, 4 tbl, 11 ex |
