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Method of improving adhesive coverage to maximize waterproofness while maintaining breathability of adhesively laminated webs, and laminates produced thereby
Method of improving adhesive coverage to maximize waterproofness while maintaining breathability of adhesively laminated webs, and laminates produced thereby
A method of forming a composite fabric includes bonding an adhesive layer to a web such that the adhesive layer conforms to surfaces of the web without sealing all web pores, and bonding a barrier layer to the adhesive layer, wherein the composite fabric MVT is at least 25% of the barrier layer MVT; and/or the composite fabric air permeability is at least 20% of the barrier layer air permeability. A composite fabric includes a web, a barrier layer and an adhesive layer therebetween, wherein: (a) the adhesive layer is conformingly bonded to structural members of the web without sealing all pores; (b) the adhesive layer is bonded to the barrier layer; (c) the composite fabric hydrostatic resistance is greater than 200 mbar; and (d) the composite fabric moisture transmission rate is greater than 600 g/m2/24 h and greater than 3000 g/m2/24 by ASTM E96, procedures B and BW, respectively.
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机译:形成复合织物的方法包括:将粘合剂层粘合到纤维网上,使得粘合剂层顺应纤维网的表面而不密封所有纤维网孔;将阻挡层粘合到粘合剂层,其中复合织物MVT至少为25%的阻挡层MVT;和/或复合织物的透气度为阻挡层透气度的至少20%。一种复合织物,包括网,阻挡层和在它们之间的粘合剂层,其中:(a)粘合剂层共形地粘合到网的结构构件上而不密封所有孔; (b)将粘合剂层粘合到阻挡层上; (c)复合织物的静水压力大于200毫巴; (d)按照ASTM E96的程序,复合织物的透湿率大于600 g / m 2 Sup> / 24 h而大于3000 g / m 2 Sup> / 24 B和BW分别。
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