发明名称 |
Process for making a fibrous web having inelastic extensibility |
摘要 |
<p>Component thermoplastic synthetic fiber 35 having inelastic extensibility as well as fiber diameter of 5 - 20 mu m constituting a fibrous web 41 is obtained by melt spinning a mixture of two or more thermoplastic synthetic resins each having a number-average molecular weight in a range of 20000 - 150000 at a draft ratio of 200 - 2300. In the case of the mixture consisting of at least two types of thermoplastic synthetic resin Ra, Rb having number-average molecular weights Ma, Mb, respectively, wherein a ratio Ma/Mb is 1.1 or higher, Ra is of 20 - 80wt%, Rb is of 80 - 20wt% and a sum of Ra and Rb makes up 50 - 100wt% of the mixture. <IMAGE></p> |
申请公布号 |
EP1308547(A2) |
申请公布日期 |
2003.05.07 |
申请号 |
EP20020257113 |
申请日期 |
2002.10.14 |
申请人 |
UNI-CHARM CORPORATION |
发明人 |
KOBAYASHI, TOSHIO;GODA, HIROKI;ISOGAI, KAZUNARI;MITSUNO, SATOSHI |
分类号 |
A61F13/472;A61F13/15;B32B5/26;D04H3/007;D04H3/033;D04H3/16;(IPC1-7):D04H1/56;D04H13/00;B32B31/00 |
主分类号 |
A61F13/472 |
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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