WET-LAID NONWOVEN FABRIC SHEET

Title:

WET-LAID NONWOVEN FABRIC SHEET

Document Type and Number:

WIPO Patent Application WO/2022/158544

Kind Code:

A1

Abstract:

The present invention relates to a wet-laid nonwoven fabric sheet configured to contain at least three types of thermoplastic fibers having different fiber diameters, wherein the fiber diameter ratio (R/r) of the fiber diameter R of the fiber having the largest fiber diameter to the fiber diameter r of the fiber having the smallest fiber diameter is 30 ≤ R/r ≤ 150, the average pore size is 0.10-15 μm, and the maximum frequency in the pore size distribution is 70% or more.

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Inventors:

HAMADA KOSUKE (JP)
SUZUKI NORIO (JP)
MASUDA MASATO (JP)

Application Number:

PCT/JP2022/002066

Publication Date:

July 28, 2022

Filing Date:

January 20, 2022

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)

International Classes:

D21H15/02; D04H1/732; D21H13/24

Domestic Patent References:

WO2008130019A1

2008-10-30

Foreign References:

JP2019203216A	2019-11-28
JP2016176173A	2016-10-06
JP2008073357A	2008-04-03
JP2006231844A	2006-09-07
JP2008136896A	2008-06-19
JP2020111847A	2020-07-27
JP2002266281A	2002-09-18
JP2019203216A	2019-11-28
JP2021008595A	2021-01-28

Attorney, Agent or Firm:

EIKOH PATENT FIRM, P.C. (JP)

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