Title:
ADHESIVE FOR PRODUCING MULTILAYERED PAPER, AND PRODUCTION OF MULTILAYERED PAPER BY UTILIZING THE SAME
Document Type and Number:
Japanese Patent JP3041621
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To produce a multilayered paper having an improved interlaminar adhesive strength, burst strength and compression strength by spraying an aqueous adhesive containing a starch, a clay and a silica sol between layers of the multilayered paper, pressing and joining the sprayed paper, and drying the joined paper.
SOLUTION: This adhesive for producing multilayered paper is obtained by blending 3-3.8 wt.% starch, 0.1-5 wt.% clay having 0.1-2 μm average particle diameter, 0.1-0.5 wt.% silica sol having 3-200 nm average particle diameter and expressed in terms of the whole dried weight, and 95.2-96.8 wt.% water. The adhesive is sprayed between layers of the multilayered paper so that the amount may be within the range of 1-4 g/m2, and the sprayed multilayered paper is joined under 2-8 kg/cm2 pressure for 1-4 min, and subjected to a drying treatment at 90-150°C to provide the objective multilayered paper.
Inventors:
Osekyung
Shin Jung Ho
Ryu Chung Yong
Shin Jung Ho
Ryu Chung Yong
Application Number:
JP17608599A
Publication Date:
May 15, 2000
Filing Date:
June 22, 1999
Export Citation:
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
International Classes:
D21H27/00; C09J11/04; C09J103/02; C09J103/12; D21H19/40; D21H19/54; (IPC1-7): D21H27/00; D21H19/40; D21H19/54
Domestic Patent References:
| JP6363677B2 |
Attorney, Agent or Firm:
Eiichi Saito (1 person outside)