发明名称 |
Method of manufacturing a transversely stretched nonwoven fabric with high tensile strength |
摘要 |
<p>A transversely stretched nonwoven fabric is manufactured by transversely stretching a nonwoven fabric. First, an original web comprising a plurality of unoriented filaments is heated to a temperature higher than its stretch suitable temperature by 5 DEG C or more. Next, the heated original web is stretched at a rate of 1.2 to 3 in its transverse direction to stretch the filaments of the original web with almost no molecular orientation involved. Then, the original web stretched transversely at a rate of 1.2 to 3 is heated to the stretch suitable temperature and the original web is further stretched transversely at the stretch suitable temperature. With these steps, a transversely stretched nonwoven fabric in which the original web is stretched transversely at a rate of 7 times or more in total as compared with the state of the stretch thereof is manufactured with a high tensile strength of 132.5 mN/tex (1.5 g/d) in the transverse direction. <IMAGE></p> |
申请公布号 |
EP1079013(B1) |
申请公布日期 |
2006.09.20 |
申请号 |
EP20000402333 |
申请日期 |
2000.08.22 |
申请人 |
NIPPON PETROCHEMICALS COMPANY, LIMITED;POLYMER PROCESSING RESEARCH INSTITUTE LIMITED |
发明人 |
KUROIWA, YUKI;MORINO, YOSHIRO;KURIHARA, KAZUHIKO;MURAKAMI, SHUICHI |
分类号 |
D06C3/00;B29C55/08;D04H3/007;D04H3/011;D04H3/02;D04H3/04;D06C7/00 |
主分类号 |
D06C3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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