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Patent Searching and Data


Title:
PROCESS FOR PRODUCING STRETCH NONWOVEN FABRIC, AND STRETCH NONWOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2013/145469
Kind Code:
A1
Abstract:
The purpose of this disclosure is to provide a process for producing stretch nonwoven fabric having excellent stretchability. This production process has the following configuration. The process for producing stretch nonwoven fabric comprises: a step in which nonwoven fabric to be treated which comprises stretchable fibers and extensible fibers is unevenly stretched, while being conveyed, so that nonwoven fabric having both higher stretched regions and lower stretched regions is formed; and a step in which the nonwoven fabric having both higher stretched regions and lower stretched regions is heated for 0.1-10 seconds at a temperature which is 40ºC or higher but is lower than the melting point of the stretchable fibers. The production process is characterized in that in the nonwoven fabric having both higher stretched regions and lower stretched regions, the higher stretched regions and the lower stretched regions are parallel to the direction perpendicular to the conveying direction and are present alternately in the conveying direction.

Inventors:
MITSUNO SATOSHI (JP)
OKUDA JUN (JP)
DETANI KOU (JP)
Application Number:
PCT/JP2012/082973
Publication Date:
October 03, 2013
Filing Date:
December 19, 2012
Export Citation:
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Assignee:
UNICHARM CORP (JP)
International Classes:
D06C3/06; B32B7/02; D04H1/4374; D06C7/02
Domestic Patent References:
WO2011016343A12011-02-10
Foreign References:
JP2008156785A2008-07-10
JP2011184833A2011-09-22
JP2011080172A2011-04-21
JP2007022066A2007-02-01
JP2012077401A2012-04-19
JP2007321293A2007-12-13
Other References:
See also references of EP 2832910A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
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