A Study on Manufacturing of Artificial Leather Nonwoven Fabric by Needle Punching and Its Physical Properties

• Main Authors: Van, Shenq Bin, 范盛彬
• Other Authors: Lin, Ming Fung
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/09694058256775684659

碩士 === 逢甲大學 === 紡織工程研究所 === 82 === In the study ， the artificial leather nonwoven fabrics are manufactured with fine deniner nylon 6 fiber （ 1.2 denier ） and nylon 6 fiber blended with polyester fiber （ 2 denier ） by different needle punching technology . The physical properties will be studied . In needle punching process，when the needling depth lower than 14mm ， the tensile strength increase with the needling depths increase . As it is more than 14mm ， the web would be damaged and the tensile strength decrease . In the same conditin ， the NO.36 needle with better tensile and tearing strength than the NO.40 needle . 60﹪nylon blended with 40﹪ polyester under needling density 900 （ needles/cm2 ）； 80 ﹪ nylon blended with 20 ﹪ polyester under needling density 1100 （ needles/cm2 ） have better tensile 、 tearing and bursting strength . The tensile and tearing strength of pure nylon nonwoven increases with the increasing of needling density from 500 to 1300 . The elongation decreases with the increasing of needling density . The variation of needling density have no prominent influence to nonwoven fabrics wrinkle recovery and softness . Air permeability decrease with the increasing of needling density ， but when the needling density is too high ， the air permeability are increasing. The physical properties of heat calendered nonwoven fabrics are better than uncalendered . The calendered better than uncalendered . After calendering ， the structer of needle punching nonwoven fabrics are more dense ， and its tensile strength 、 tearing strength 、 bursting strength and wrinkle recovery increase ； the elongation 、 air permeability and softness decrease .