Method for restoring bulkiness of nonwoven fabric

Details Method for restoring bulkiness of nonwoven fabric Method for restoring bulkiness of nonwoven fabric

2006-11-07

2006-11-07

Worrell, Danny (Department: 3765)

Textiles: manufacturing

Textile product fabrication or treatment

Of thread interlaced article or fabric

C028S122000, C028S112000

Reexamination Certificate

active

07131171

ABSTRACT:
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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patent: WO-97/48846 (1997-12-01), None

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