Abstract: There is disclosed a high-shrinkage acrylic fiber made of an acrylonitrile polymer comprising acrylonitrile in no less than 50% by weight, wherein a shrinkage rare after dry heating at 130° C. for 10 min without load is 25 to 35% and a difference between the maximum and the minimum of a shrinkage rate after dry heating within a temperature range of 120 to 140° C. for 10 min without load is 8% or less. There also provided a pile composition comprising the high-shrinkage acrylic in 20 to 80% by weight, and a pile fabric prepared from the pile composition.

Abstract: There is disclosed a high-shrinkage acrylic fiber made of an acrylonitrile polymer comprising acrylonitrile in no less than 50% by weight, wherein a shrinkage rate after dry heating at 130° C. for 10 min without load is 25 to 35% and a difference between the maximum and the minimum of a shrinkage rate after dry heating within a temperature range of 120 to 140° C. for 10 min without load is 8% or less. There are also provided a pile composition comprising the high-shrinkage acrylic fiber in 20 to 80% by weight, and a pile fabric prepared from the pile composition.

Abstract: A conductive sheet is disclosed, which consists of a nonwoven fabric consisting of 40 to 90 wt % of a heat fusible fiber comprising a vinyl chloride/vinyl acetate copolymer and 10 to 60 wt % of a metal-plated fiber having a fiber diameter of 3 to 50 .mu.m and an aspect ratio of 1,000 to 10,000, wherein the nonwoven fabric is hot-press molded and wherein the conductive sheet has a metal content of 2 to 30% by weight and a specific volume of at most 2 cm.sup.3 /g. The conductive sheet has excellent electromagnetic interference shielding and electrical control effects.

Abstract: Thin-metal-wire conjugated yarn excellent in suitability for clothing and having EMI shielding which comprises a core composed of a thin metal wire having a diameter of 50.mu. or less and a chemical or synthetic fiber or natural fiber yarn, and another chemical or synthetic fiber or natural fiber yarn as sheath wound round and coated on said core, characterized in that the coating percentage is 70% or more based on the surface area of the conjugated yarn.