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1. (WO2017152925) HIGH BARRIER NONWOVEN FABRIC

Pub. No.:    WO/2017/152925    International Application No.:    PCT/EP2016/002039
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Dec 06 00:59:59 CET 2016
IPC: A61F 13/475
D04H 1/4291
D04H 1/54
D04H 1/541
D04H 1/544
D04H 1/552
D04H 1/56
D04H 3/007
D04H 3/12
D04H 3/16
D01F 1/02
D01F 1/04
Applicants: FIBERTEX PERSONAL CARE A/S
Inventors: UDENGAARD, Brian
HEDE, Barbara Harling
BROCH, Thomas
Title: HIGH BARRIER NONWOVEN FABRIC
Abstract:
The invention relates to a method for making a nonwoven fabric comprising forming polymer fibers from a melt of the polymer material and using these fibers to obtain a nonwoven fabric during a subsequent nonwoven fabric formation procedure, wherein the melt of the polymer material comprises a melt additive, wherein the method comprises thermal bonding at a temperature higher than 40°C below the melting point of the polymer material and, additionally, one or both of the following steps: a. improving the mobility of the additive by heat-treating the nonwoven fabric at 100°C or more for 0.1 seconds or more after the nonwoven fabric formation procedure and/or including a filler having a higher thermal conductivity than the polymer material to the polymer material; b. influencing the polymer crystallinity by including a nucleating agent, branched polymers and/or random co-polymers to the polymer material.