Title:
SPUNBONDED NONWOVEN FABRIC AND SANITARY MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/042540
Kind Code:
A1
Abstract:
This spunbonded nonwoven fabric has fused parts and non-fused parts. The fused parts form parts recessed in one surface (A) toward another surface (B). The ratio (Da/Db) of the average single-fiber diameter (Da) of the fibers constituting the one surface (A) to the average single-fiber diameter (Db) of the fibers constituting the other surface (B) is 1.1 or greater. The spunbonded nonwoven fabric satisfies the conditions stated herein. (1) The diameters of the minimum inscribed circles of the non-fused parts are 1.0 mm or less; (2) the diameters of the maximum inscribed circles of the non-fused parts are 2.0 mm or greater; (3) the fused parts are disposed continuously in a row configuration; (4) the ratio (Tm/T) of the thickness (Tm) of the spunbonded nonwoven fabric at the fused parts to the thickness (T) of the spunbonded nonwoven fabric is 0.30 or less; and (5) the degrees of deformation of the fused parts are 1.1 or greater. Provided is a spunbonded nonwoven fabric that has sufficient absorbency and dryness to maintain comfort within a member using a sanitary nonwoven fabric, and has an excellent quick-drying property.
More Like This:
Inventors:
MORIOKA HIDEKI (JP)
KATSUTA HIROO (JP)
KAJIWARA KENTARO (JP)
KATSUTA HIROO (JP)
KAJIWARA KENTARO (JP)
Application Number:
PCT/JP2022/028000
Publication Date:
March 23, 2023
Filing Date:
July 19, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D04H3/16; A41D13/11; A61F13/511; A61F13/514
Domestic Patent References:
| WO2002061192A1 | 2002-08-08 | |||
| WO2018167882A1 | 2018-09-20 | |||
| WO2019230646A1 | 2019-12-05 | |||
| WO2021256146A1 | 2021-12-23 |
Foreign References:
| JPH0742057A | 1995-02-10 | |||
| JP2016141929A | 2016-08-08 | |||
| JP2017512918A | 2017-05-25 | |||
| JP2011067602A | 2011-04-07 |
Download PDF: