| 摘要 |
PURPOSE:A copolyester binder fiber that has lower than specific values in its melting point, glass transition point and elastic deformation point, thus showing dood handleability, high adhesion as a binder and low shrinkage of its collective fiber, when heat treated for adhesion. CONSTITUTION:A copolyester having lower than 200 deg.C melting point, lower than 40 deg.C glass transition point, less than 10 elastic deformation factor, preferably containing terephthalic acid isophethalic acid, 1,4-butanediol and glycol components other than polyether is subjected to melt spinning at a temperature 50- 150 deg.C higher than the melting point and, when needed, drawn at a draw ratio of 1.1-3 at 30-60 deg.C to produce the objective copolyester binder fiber. USE:Nonwoven fabrics or wadding. |
