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Patent Searching and Data


Title:
NONWOVEN FABRIC AND PRODUCTION METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2017/002924
Kind Code:
A1
Abstract:
Provided is a nonwoven fabric that includes fibers the principal component of which is a polymer with a glass transition temperature of 50°C or above, and that has a longitudinal strength of 1 N/5 cm or greater per 1 g/m2, the nonwoven fabric satisfying both of the following conditions (1) and (2) and making it possible to provide a nonwoven fabric that has ample strength to be handled independently and that contains fibers having as the principal component a polymer with a Tg of 50°C or above, without performing any post-processing step such as an embossing step, calendaring step and spun lace step. Also provided is a production method for such nonwoven fabric. Condition (1): the density is 0.01-0.4 g/cm3. Condition (2): the proportion of sections having density exceeding 0.4 g/cm3 in a cross section taken in the thickness direction is 3% or less.

Inventors:
SHIRAISHI IKUHISA (JP)
SHIROTANI YASUHIRO (JP)
Application Number:
PCT/JP2016/069462
Publication Date:
January 05, 2017
Filing Date:
June 30, 2016
Export Citation:
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Assignee:
KURARAY CO (JP)
International Classes:
D04H3/16; D01D5/08
Foreign References:
JP2008081893A2008-04-10
JPS63315655A1988-12-23
JP2012041644A2012-03-01
JP2004185860A2004-07-02
JPH0860515A1996-03-05
JPH05279947A1993-10-26
Other References:
See also references of EP 3318667A4
Attorney, Agent or Firm:
Fukami Patent Office, p. c. (JP)
Patent business corporation Fukami patent firm (JP)
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