Title:
COMPOSITION FOR AQUEOUS PAPER COATING AND COATED PAPER OBTAINED BY COATING OF THE SAME COMPOSITION
Document Type and Number:
Japanese Patent JP3523944
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a composition for aqueous coating, capable of providing a coated paper containing particles comprising polylactic acid, etc., a water-soluble polymer and a filler, having sufficient strength and water permeability and excellent in impression property in printing and ink setting property.
SOLUTION: This composition for aqueous coating contains (A) particles comprising a copolymer of a polylactic acid and/or lactic acid with other hydroxycarboxlic acid and having 0.1-50μm diameter and ≤50,000 weight-average molecular weight, (B) a water-soluble polymer such as polyvinyl alcohol or (carboxy)methylcellulose and (C) a filler such as kaolin or calcium, and contains 5-80wt.% total amount of the component A and C. Furthermore, the composition for aqueous paper coating in an amount of 1-100g/m2 is applied to one surface of a substrate containing cellulose fiber and the composition is heat-treated at a glass transition temperature of the component A or above so as to form a coating layer to provide the objective coated paper.
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Inventors:
Takagi, Masatoshi
Minazu, Hiroshi
Ajioka, Masanobu
Yamaguchi, Teruhiro
Minazu, Hiroshi
Ajioka, Masanobu
Yamaguchi, Teruhiro
Application Number:
JP23516595A
Publication Date:
April 26, 2004
Filing Date:
September 13, 1995
Export Citation:
Assignee:
MITSUI TOATSU CHEM INC
International Classes:
C04B33/04; C07C59/08; C08G63/06; C08L101/16; C09D101/08; C09D103/00; C09D103/02; C09D167/00; C09D167/04; C09D189/00; D21H19/44; D21H19/60; D21H19/62; (IPC1-7): D21H19/62; C08G63/06; C09D101/08; C09D103/02; C09D167/04; C09D189/00; D21H19/60
Attorney, Agent or Firm:
苗村 新一 （外１名）