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Title:
SPINNERET AND METHOD OF MANUFACTURING FIBER WEB
Document Type and Number:
WIPO Patent Application WO/2019/198397
Kind Code:
A1
Abstract:
Provided is a spinneret such that it is possible to fabricate a large-sized spinneret using a general-purpose processing machine that can be introduced relatively inexpensively, making it possible to reduce fabrication cost and manufacture a fiber web having low basis weight variation. The spinneret of the present invention comprises one or a plurality of plate-like members having a plurality of nozzle holes formed therein and stacked in a spinning direction. At least one plate-like member has a plurality of nozzle holes formed in a substantially rectangular region of a major surface thereof, and has nozzle hole rows in which the nozzle holes are arranged in the short-side direction of the rectangle and which are arranged at regular intervals in the long-side direction of the rectangle. The rectangular region includes a non-forming band which intersects the plurality of nozzle hole rows and in which the nozzle holes do not exist. All of the nozzle hole rows have the same number of nozzle holes.

Inventors:
FUNAKOSHI, Joji (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
YAMAMOTO, Taku (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
TAMURA, Tomoki (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
KANEMORI, Yasunori (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
Application Number:
JP2019/009539
Publication Date:
October 17, 2019
Filing Date:
March 08, 2019
Export Citation:
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Assignee:
TORAY INDUSTRIES, INC. (1-1 Nihonbashi-Muromachi 2-chome, Chuo-ku Tokyo, 66, 〒1038666, JP)
International Classes:
D01D4/02; D04H1/736; D04H3/16
Domestic Patent References:
WO2014133006A12014-09-04
WO2003014429A12003-02-20
Foreign References:
JP2000328347A2000-11-28
JP2011063926A2011-03-31
JPH11302916A1999-11-02
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (Toranomon Mitsui Building, 8-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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