发明名称 |
Method for restoring bulkiness of nonwoven fabric |
摘要 |
A method for restoring bulkiness of nonwoven fabric which contains crimped thermoplastic fiber and is in a roll form is disclosed. The method comprises unwinding the nonwoven fabric from the stock roll, and blowing hot air to the unwound nonwoven fabric by a through-air technique to make the nonwoven fabric increase in bulkiness. The hot air is heated at a temperature lower than the melting point of the thermoplastic fiber and not lower than a temperature lower than that melting point by about 50° C., and is blown for about 0.05 to 3 seconds.
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申请公布号 |
US7131171(B2) |
申请公布日期 |
2006.11.07 |
申请号 |
US20030668201 |
申请日期 |
2003.09.24 |
申请人 |
KAO CORPORATION |
发明人 |
MIYAMOTO TAKANOBU;SAKA WATARU;KOMORI YASUHIRO;ASANO KOJI;KANETA MANABU |
分类号 |
B65H71/00;A61F13/15;D04H1/54 |
主分类号 |
B65H71/00 |
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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