Title:
METHOD FOR PRODUCING PAPER PULP AND METHOD FOR PRODUCING REGENERATED ARAMID PAPER
Document Type and Number:
Japanese Patent JP2021130892
Kind Code:
A
Abstract:
To provide a method for producing paper pulp in which aramid paper end materials and damaged materials can be re-used as a raw material for papermaking without finely crushing.SOLUTION: The method for producing paper pulp in which an aramid paper composed of an aramid short fiber and an aramid fibrid is disintegrated in water includes a disintegration step of charging an aramid paper in dry state into water to disintegrate the aramid paper, and in the disintegration step, the aramid paper is disintegrated using a disintegration machine 1 having an agitation force in the vertical direction.SELECTED DRAWING: Figure 1
Inventors:
FUJIMORI RYUSHI
NARUSE SHINJI
NARUSE SHINJI
Application Number:
JP2020027845A
Publication Date:
September 09, 2021
Filing Date:
February 21, 2020
Export Citation:
Assignee:
DU PONT TEIJIN ADVANCED PAPER CO LTD
International Classes:
D21H13/26; D04H1/4342; D21B1/32
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