Title:
NONWOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2008/065825
Kind Code:
A1
Abstract:
It is intended to provide a nonwoven fabric comprising a thermoplastic elastomer fiber and a thermoplastic polyolefin fiber, characterized in that a difference in b value in Lab color system between before and after UV irradiation at 5000 kJ/m2 in the thermoplastic elastomer fiber is 20 or more and a difference in b value in Lab color system between before and after UV irradiation at 5000 kJ/m2 in the nonwoven fabric is 10 or less, and it satisfies the relationship of (Formula 1). With the proviso that w1 represents a mass percentage (%) of the polyolefin fiber in the nonwoven fabric, r1 represents a radius (μm) of the polyolefin fiber, ρ1 represents a density (g/cm3) of polyolefin, w2 represents a mass percentage (%) of the thermoplastic elastomer fiber in the nonwoven fabric, r2 represents a radius (μm) of the thermoplastic elastomer fiber, and ρ2 represents a density (g/cm3) of thermoplastic elastomer.
Inventors:
MITSUNO SATOSHI (JP)
MUKAI HIROTOMO (JP)
GODA HIROKI (JP)
MUKAI HIROTOMO (JP)
GODA HIROKI (JP)
Application Number:
PCT/JP2007/070286
Publication Date:
June 05, 2008
Filing Date:
October 17, 2007
Export Citation:
Assignee:
UNI CHARM CORP (JP)
MITSUNO SATOSHI (JP)
MUKAI HIROTOMO (JP)
GODA HIROKI (JP)
MITSUNO SATOSHI (JP)
MUKAI HIROTOMO (JP)
GODA HIROKI (JP)
International Classes:
D04H1/4291; D04H1/4358; D04H1/4382; D04H3/153
Foreign References:
| JP2006112025A | 2006-04-27 | |||
| JPH0693551A | 1994-04-05 |
Other References:
See also references of EP 2090682A4
Attorney, Agent or Firm:
SHIRAHAMA, Yoshiharu et al. (13-8 Shimbashi 2-chome, Minato-k, Tokyo 04, JP)
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