Patent ID: 8039083
Filing Date: 2011-10-18
Classification: A44B,D03D,D10B,Y10T

Abstract:
1. A separable fastener member without a back-coated layer, which comprises (α1) a ground warp, (α2) a ground weft of a binder fiber, and (α3) a pile yarn, wherein the pile yarn (α3) is anchored by the fused binder fiber, and the separable fastener member fulfills the following conditions (i) to (vi): (i) each of the ground warp (α1), the ground weft (α2) and the pile yarn (α3) comprises a polyester fiber, and the proportion (mass ratio) of the ground warp (α1) relative to the ground weft (α2) (α1/α2) is 50/50 to 70/30, and the proportion (mass ratio) of the total amount of the ground warp (α1) and the ground weft (α2) relative to the pile yarn (α3) [(α1+α2)/α3] is 80/20 to 60/40, (ii) the distance (L) between adjacent anchored points of the pile yarn (α3) is 0.3 to 0.7 mm, (iii) the void space in a unit area defined by a pair of ground warps (α1) and a pair of ground wefts (α2) both of which are adjacent to the pile yarn (α3) is 0 to 30 μm (iv) the cover factor (K1) of the ground warp (α1) and the cover factor (K2) of the ground weft (α2) fulfill the following formulae, (v) the ground weft (α2) is a multifilament yarn having yarn fineness of 150 to 400 dtex and comprising 30 to 150 of sheath-core structure conjugated fibers having single fiber fineness of 2 to 10 dtex and comprising a binder resin as the sheath component, (vi) each of the ground warp (α1), the ground weft (α2) and the pile yarn (α3) satisfies the following conditions Peak thermal stress of α1≧0.07 cN/dtex Peak thermal stress of α2≧0.20 cN/dtex Peak thermal stress of α3≧0.10 cN/dtex; (vii) and wherein each of the ground warp (α1), the ground weft (α2) and the pile yarn (α3) satisfies the following conditions 4%≦Dry heat shrinkage of α1 at 180° C.≦20% 13% Dry heat shrinkage of α2 at 180° C.≦30% 10% Dry heat shrinkage of α3 at 180° C.≦30%.