Title:
MANUFACTURING METHOD FOR HIGH-STRENGTH WHITE KRAFT PAPER
Document Type and Number:
WIPO Patent Application WO/2021/120176
Kind Code:
A1
Abstract:
A coating composition for producing white kraft paper, a preparation method for the coating composition, and white kraft paper prepared using the coating composition. The coating composition is composed of the following components: 40-120 parts of calcium carbonate, 5-30 parts of kaolin, 0.8-1.2 parts of sodium polyacrylate, 7.8-13 parts of anionic styrene-butadiene latex, 1-8 parts of oxidized konjac glucomannan, 0.1-1.5 parts of citrus pectin, 1-4 parts of silicon dioxide nano-modified soybean protein, 0.1-0.7 part of carboxymethylcellulose, 0.15-0.3 part of polyethylene glycol, 0.2-0.5 part of glyoxal, 0.1-0.3 part of an organic silicon defoaming agent, 0.03-0.05 part of sodium hydroxide, and 50-80 parts of water. According to the coating composition, industrial synthetic latex is substantially replaced with a bio-natural adhesive, thereby solving the problems that the industrial synthetic latex is difficult to degrade, causes environmental pollution, etc.; in addition, the printing performance of white board paper can be effectively improved by adding modified konjac polysaccharide, citrus pectin and nano-modified soybean protein.
Inventors:
CHEN CHUANGYONG (CN)
SHI CAILIAN (CN)
CHEN O (CN)
CHEN HUANHUAN (CN)
WU FEIYAN (CN)
TONG HANXIN (CN)
ZHANG WEIHAI (CN)
SHI CAILIAN (CN)
CHEN O (CN)
CHEN HUANHUAN (CN)
WU FEIYAN (CN)
TONG HANXIN (CN)
ZHANG WEIHAI (CN)
Application Number:
PCT/CN2019/127029
Publication Date:
June 24, 2021
Filing Date:
December 20, 2019
Export Citation:
Assignee:
ZHEJIANG JINLONG PAPER CO LTD (CN)
International Classes:
D21H19/20; D21F11/00; D21H19/14; D21H19/16; D21H19/24; D21H19/34; D21H19/82; D21H23/34; D21H23/48; D21H27/30
Domestic Patent References:
| WO2003004766A2 | 2003-01-16 |
Foreign References:
| CN104928981A | 2015-09-23 | |||
| CN1986662A | 2007-06-27 | |||
| CN102084855A | 2011-06-08 | |||
| CN102912689A | 2013-02-06 |
Other References:
ZHANG XUEJUN: "Studies on the Effect of Nanomaterials on Adhesive Properties of Soybean Proteins as Bioingredients", SCIENCE-ENGINEERING (A), 1 June 2008 (2008-06-01), XP055821315
MAO JIE: "Study on Konjac-Polysaccharide Wood Adhesive", SCIENCE-ENGINEERING (A), 1 April 2009 (2009-04-01), XP055821317
MAO JIE: "Study on Konjac-Polysaccharide Wood Adhesive", SCIENCE-ENGINEERING (A), 1 April 2009 (2009-04-01), XP055821317
Attorney, Agent or Firm:
QUZHOU WEICHUANGWEBANG PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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