发明名称 |
VLIESSTOFFE UND VERFAHREN ZUR HERSTELLUNG DERSELBEN. |
摘要 |
Nonwoven fabrics contain at least 30 % by weight of heat-adhesive composite fibers consisting of core portion and sheath portion, said core portion being of the side-by-side type composite structure comprising two core components of different polypropylene base polymers in a composite ratio of 1:2 to 2:1, one of said core components having a Q value, expressed in terms of the weight-average molecular weight/the number-average molecular weight, equal to or higher than 6 and the other having a Q value equal to or lower than 5, and said sheath portion meeting at least the requirement that it should compirse a sheath component of a polyethylene base polymer having a melting point lower by at least 20 DEG C than the lower one of the melting points of said two core components. The nonwoven fabrics are bulky and soft due to the crimps of the heat-adhesive composite fibers resultant from the core portion and are stabilized by the inter-fiber bonds of the sheath portion. |
申请公布号 |
DE3776855(D1) |
申请公布日期 |
1992.04.02 |
申请号 |
DE19873776855 |
申请日期 |
1987.10.13 |
申请人 |
CHISSO CORP., OSAKA, JP |
发明人 |
EJIMA, SHOZO, MORIYAMA-SHI SHIGA-KEN, JP;SUGIHARA, TAIZO, OMIHACHIMAN-SHI SHIGA-KEN, JP;ABE, MORIO, YASU-GUN SHIGA-KEN, JP |
分类号 |
D01D5/20;D01D5/30;D01D5/34;D01F8/06;D04H1/4291;D04H1/4382;D04H1/50;D04H1/541 |
主分类号 |
D01D5/20 |
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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