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Multilayer coating infiltration method in papermaking technology

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  • Title:
    Multilayer coating infiltration method in papermaking technology
  • Author: HU FENGHUA ; WU ZIMIN
  • Subjects: IMPREGNATING OR COATING OF PAPER ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PULP COMPOSITIONS ; TEXTILES ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
  • Description: The invention discloses a multilayer coating infiltration method in a papermaking technology. The method comprises the following steps of: (1) treating a substrate, applying a water-soluble solvent tothe surface of the substrate paper; (2) pre-coating the substrate treated by the step (1), wherein the coating comprises a starch microcrystalline cellulose compound latex and a butylbenzene latex; (3) after pre-coating, uniformly applying foaming curing liquid to form a foamed solidified layer; (4) applying the surface of the foamed solidified layer, wherein the coating contains powdered steatile, silica, a barium sulfate nano-dispersion body, chitosan, a fluorescent whitening agent, sodium polyacrylate, polyvinyl alcohol and deionized water; and (5) recoating an anti-oxidation protective film, then placing the material in an infrared oven, and performing a foaming reaction until a nanoporous foamed structure is formed. The method of the invention can improve the surface properties of the paper, mainly improves
  • Creation Date: 2019
  • Language: Chinese;English
  • Source: esp@cenet
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