Title:
KRAFT PAPER AND KRAFT PAPER SACK
Document Type and Number:
WIPO Patent Application WO/2020/241435
Kind Code:
A1
Abstract:
Provided is kraft paper and a kraft paper sack that have excellent permeability while maintaining strength. When the kraft paper is disintegrated by a pulp-disintegration method specified in JIS P 8220:2012, the disintegrated pulp thus acquired has a Canadian standard freeness, which is measured in accordance with JIS P 8121-2:2012, of 700 mL or more, and a fiber roughness, which is specified in JIS P 8120:1998, of 0.200 mg/m or more.
Inventors:
AKAI SAWAKO (JP)
ENDO TOMOHIRO (JP)
SHIMIZU RYO (JP)
EHARA MISA (JP)
TAMURA YUKI (JP)
ENDO TOMOHIRO (JP)
SHIMIZU RYO (JP)
EHARA MISA (JP)
TAMURA YUKI (JP)
Application Number:
PCT/JP2020/020052
Publication Date:
December 03, 2020
Filing Date:
May 21, 2020
Export Citation:
Assignee:
OJI HOLDINGS CORP (JP)
International Classes:
D21H11/04
Foreign References:
| JP2013159866A | 2013-08-19 | |||
| JP2000054283A | 2000-02-22 | |||
| JP2010229564A | 2010-10-14 | |||
| JP2013185260A | 2013-09-19 | |||
| JP2006089889A | 2006-04-06 | |||
| US20180127919A1 | 2018-05-10 |
Attorney, Agent or Firm:
SIKS & CO. (JP)
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