Layered Nonwoven Fabric And Sanitary Material

Abstract: The present invention is a layered nonwoven fabric in which at least one each of a nonwoven fabric layer (A) composed of a first thermoplastic resin fiber and a nonwoven fabric layer (B) composed of a second thermoplastic resin fiber are layered, wherein: the cross-section of the first thermoplastic resin fiber has a plurality of lobes, and is a modified cross-section with a lobularity of 5% or more; the ratio (Db / Da) of the average single-fiber diameter Db of the second thermoplastic resin fiber to the average single-fiber diameter Da of the first thermoplastic resin fiber is 1.0 or more; and the nonwoven fabric layer (B) is layered on at least one of the outermost layers. This layered nonwoven fabric has water-absorption speed and water-absorbing/quick-drying properties sufficient to enable the fabric to be utilized as a sanitary nonwoven fabric. By employing this layered nonwoven fabric as at least a portion of a sanitary material, a sanitary material having excellent water absorbability and excellent quick-drying properties can be obtained.

Patent Information

Application #

Filing Date

23 August 2022

Publication Number

34/2022

Publication Type

INA

Invention Field

POLYMER TECHNOLOGY

Status

Email

patent@depenning.com

Parent Application

Applicants

TORAY INDUSTRIES, INC.

1-1, Nihonbashi-Muromachi 2-chome, Chuo-ku, Tokyo 1038666

Inventors

1. MORIOKA, Hideki

c/o Shiga Plant, Toray Industries, Inc., 1-1, Sonoyama 1-chome, Otsu-shi, Shiga 5208558

2. KAJIWARA, Kentaro

c/o Shiga Plant, Toray Industries, Inc., 1-1, Sonoyama 1-chome, Otsu-shi, Shiga 5208558

3. FUNATSU, Yoshitsugu

c/o Okazaki Plant, Toray Industries, Inc., 1, Aza-deguchi, Yahagi-cho, Okazaki-shi, Aichi 4448522

Specification

Documents

Application Documents

#	Name	Date
1	202247047858-FORM 3 [22-01-2024(online)].pdf	2024-01-22
1	202247047858.pdf	2022-08-23
2	202247047858-FORM 18 [19-01-2024(online)].pdf	2024-01-19
2	202247047858-STATEMENT OF UNDERTAKING (FORM 3) [23-08-2022(online)].pdf	2022-08-23
3	202247047858-PROOF OF RIGHT [23-08-2022(online)].pdf	2022-08-23
3	202247047858-Correspondence_Form 1 And Form 26_24-01-2023.pdf	2023-01-24
4	202247047858-PRIORITY DOCUMENTS [23-08-2022(online)].pdf	2022-08-23
4	202247047858-FORM 3 [05-01-2023(online)].pdf	2023-01-05
5	202247047858-FORM-26 [15-11-2022(online)].pdf	2022-11-15
5	202247047858-FORM 1 [23-08-2022(online)].pdf	2022-08-23
6	202247047858-DRAWINGS [23-08-2022(online)].pdf	2022-08-23
6	202247047858-AMMENDED DOCUMENTS [02-09-2022(online)].pdf	2022-09-02
7	202247047858-FORM 13 [02-09-2022(online)].pdf	2022-09-02
7	202247047858-DECLARATION OF INVENTORSHIP (FORM 5) [23-08-2022(online)].pdf	2022-08-23
8	202247047858-COMPLETE SPECIFICATION [23-08-2022(online)].pdf	2022-08-23
8	202247047858-MARKED COPIES OF AMENDEMENTS [02-09-2022(online)].pdf	2022-09-02
9	202247047858-RELEVANT DOCUMENTS [02-09-2022(online)].pdf	2022-09-02
10	202247047858-MARKED COPIES OF AMENDEMENTS [02-09-2022(online)].pdf	2022-09-02
10	202247047858-COMPLETE SPECIFICATION [23-08-2022(online)].pdf	2022-08-23
11	202247047858-FORM 13 [02-09-2022(online)].pdf	2022-09-02
11	202247047858-DECLARATION OF INVENTORSHIP (FORM 5) [23-08-2022(online)].pdf	2022-08-23
12	202247047858-DRAWINGS [23-08-2022(online)].pdf	2022-08-23
12	202247047858-AMMENDED DOCUMENTS [02-09-2022(online)].pdf	2022-09-02
13	202247047858-FORM-26 [15-11-2022(online)].pdf	2022-11-15
13	202247047858-FORM 1 [23-08-2022(online)].pdf	2022-08-23
14	202247047858-PRIORITY DOCUMENTS [23-08-2022(online)].pdf	2022-08-23
14	202247047858-FORM 3 [05-01-2023(online)].pdf	2023-01-05
15	202247047858-PROOF OF RIGHT [23-08-2022(online)].pdf	2022-08-23
15	202247047858-Correspondence_Form 1 And Form 26_24-01-2023.pdf	2023-01-24
16	202247047858-STATEMENT OF UNDERTAKING (FORM 3) [23-08-2022(online)].pdf	2022-08-23
16	202247047858-FORM 18 [19-01-2024(online)].pdf	2024-01-19
17	202247047858.pdf	2022-08-23
17	202247047858-FORM 3 [22-01-2024(online)].pdf	2024-01-22