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Absorbent And Sanitary Material Product

Abstract: In order to obtain an absorbent and a sanitary material product that are thin and have excellent absorbing characteristics due to high utilizing efficiency of absorbent polymer provided between non-woven fabrics, the absorbent of the present invention comprises, in the following order: a first non-woven fabric; first water-absorbing polymers; a second non-woven fabric; second water-absorbing polymers; and a third non-woven fabric, and has a thickness of 4.0 mm or less, first water-absorbing polymers are fixed to the first non-woven fabric to form a first layer, the second water-absorbing polymers are fixed to the third non-woven fabric to form a second layer, the second non-woven fabric contains 60% by mass or more hydrophilic fibers relative to the entire second non-woven fabric, the first layer has a liquid diffusion area of 40-90 cm2, the result of the liquid diffusion area of the second non-woven fabric divided by the liquid diffusion area of the first layer is 1.1-2.0, and the result of the liquid diffusion area of the second non-woven fabric divided by the liquid diffusion area of the second layer is 1.1-2.5.

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Patent Information

Application #
Filing Date
27 March 2025
Publication Number
17/2025
Publication Type
INA
Invention Field
BIO-MEDICAL ENGINEERING
Status
Email
Parent Application

Applicants

TORAY INDUSTRIES, INC.
1-1, Nihonbashi-Muromachi 2-chome, Chuo-ku, Tokyo 1038666

Inventors

1. SAKAI Kenichi
c/o Seta Plant, Toray Industries, Inc., 1-1, Oe 1-chome, Otsu-shi, Shiga 5202141
2. HANANOUCHI Hirotaka
c/o Seta Plant, Toray Industries, Inc., 1-1, Oe 1-chome, Otsu-shi, Shiga 5202141

Specification

Documents

Application Documents

# Name Date
1 202547028942-STATEMENT OF UNDERTAKING (FORM 3) [27-03-2025(online)].pdf 2025-03-27
2 202547028942-REQUEST FOR EXAMINATION (FORM-18) [27-03-2025(online)].pdf 2025-03-27
3 202547028942-PROOF OF RIGHT [27-03-2025(online)].pdf 2025-03-27
4 202547028942-PRIORITY DOCUMENTS [27-03-2025(online)].pdf 2025-03-27
5 202547028942-FORM 18 [27-03-2025(online)].pdf 2025-03-27
6 202547028942-FORM 1 [27-03-2025(online)].pdf 2025-03-27
7 202547028942-DECLARATION OF INVENTORSHIP (FORM 5) [27-03-2025(online)].pdf 2025-03-27
8 202547028942-COMPLETE SPECIFICATION [27-03-2025(online)].pdf 2025-03-27
9 202547028942-FORM-26 [28-03-2025(online)].pdf 2025-03-28
10 202547028942-RELEVANT DOCUMENTS [11-04-2025(online)].pdf 2025-04-11
11 202547028942-MARKED COPIES OF AMENDEMENTS [11-04-2025(online)].pdf 2025-04-11
12 202547028942-FORM 13 [11-04-2025(online)].pdf 2025-04-11
13 202547028942-AMMENDED DOCUMENTS [11-04-2025(online)].pdf 2025-04-11
14 202547028942-FORM 3 [01-08-2025(online)].pdf 2025-08-01