Title:
クラフト紙及びその製造方法
Document Type and Number:
Japanese Patent JP7234866
Kind Code:
B2
Abstract:
To provide craft paper of sufficient paper strength while using pulp of a thick fiber wall and a small inner void, and a method of producing the same.SOLUTION: The craft paper is characterized in that the length mean fiber length of whole disaggregation pulp is 1.0 to 2.0 mm, a fraction (A) i.e., a fiber of a fiber length of not less than 2.0 mm and a fraction (B) i.e., a fiber of a fiber length of 1.0 mm or less are each contained in the disaggregation pulp, the Runkel ratio of the fraction (A) is not lower than 2.0, and the total content of the fraction (A) and the fraction (B) in the disaggregation pulp is not less than 50%.SELECTED DRAWING: None
Inventors:
Mizuho Kamada
Application Number:
JP2019160360A
Publication Date:
March 08, 2023
Filing Date:
September 03, 2019
Export Citation:
Assignee:
Oji Holdings Co., Ltd.
International Classes:
D21H11/04; D21H15/02
Domestic Patent References:
| JP2015021209A | ||||
| JP2015124464A | ||||
| JP2007204866A | ||||
| JP2013159866A | ||||
| JP2019131922A |
Attorney, Agent or Firm:
Yasushi Matsunuma
Yuichiro Kawagoe
Noriko Yanai
Shunsuke Fushimi
Tetsuya Kimizuka
Yuichiro Kawagoe
Noriko Yanai
Shunsuke Fushimi
Tetsuya Kimizuka