Title:
METHOD FOR PRODUCING REGENERATED ARAMID PAPER
Document Type and Number:
Japanese Patent JP2021130893
Kind Code:
A
Abstract:
To provide a method for producing a regenerated aramid paper having a moderate mechanical property and a good appearance using an aramid paper pulp in which an aramid paper is re-used.SOLUTION: The method for producing regenerated aramid paper includes a disintegration step in which paper pieces of a dry aramid paper formed of an aramid short fiber and an aramid fibrid is disintegrated in water by a disintegration machine 1 to obtain an aramid paper pulp, and a papermaking step in which the paper pulp is made into a paper, and in the disintegration step, the aramid paper pulp is disintegrated such that the degree of disintegration is 93% or more.SELECTED DRAWING: Figure 1
Inventors:
FUJIMORI RYUSHI
NARUSE SHINJI
NARUSE SHINJI
Application Number:
JP2020027846A
Publication Date:
September 09, 2021
Filing Date:
February 21, 2020
Export Citation:
Assignee:
DU PONT TEIJIN ADVANCED PAPER CO LTD
International Classes:
D21H13/26
Domestic Patent References:
| JPH04228696A | 1992-08-18 | |||
| JP2008150734A | 2008-07-03 | |||
| JP2010512470A | 2010-04-22 | |||
| JP2003213592A | 2003-07-30 | |||
| JPH07243189A | 1995-09-19 |
Foreign References:
| WO2012118187A1 | 2012-09-07 |
Attorney, Agent or Firm:
Shinichiro Tanaka
▲吉▼田 和彦
Hiroyuki Suda
Mitsuru Matsushita
Ichiro Kurasawa
Yasushi Yamamoto
Yamamoto Kousuke
▲吉▼田 和彦
Hiroyuki Suda
Mitsuru Matsushita
Ichiro Kurasawa
Yasushi Yamamoto
Yamamoto Kousuke