Title:
Coating liquid , a manufacturing method for the same, gas-barrier-property layered product, and packaging material for gas barrier layer formation
Document Type and Number:
Japanese Patent JP6268746
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a coating liquid for forming a gas barrier layer that allows production of a gas barrier layer capable of maintaining gas barrier properties by a cellulosic material even at high humidity, capable of preventing water vapor or the like serving as a deterioration factor from immersing or infiltrating inside a film, and with smaller humidity deterioration of film strength, and also to provide a manufacturing method thereof, a gas barrier laminate and a packaging material.SOLUTION: A coating liquid for forming a gas barrier layer includes a cellulose nanofiber, a water-soluble polymer, an inorganic laminar compound, and a water repellent. The fiber width of the cellulose nanofiber is, for instance, 3-50 nm. The coating liquid is applied, for instance, on one side of a base material 1 and then desiccated so as to form a gas barrier layer 2. The gas barrier layer 2 is capable of maintaining gas barrier properties by a cellulosic material even at high humidity, is capable of preventing water vapor or the like serving as a deterioration factor from immersing or infiltrating inside a film, and allows smaller humidity deterioration of film strength.
Inventors:
Kosuke Shimizu
Application Number:
JP2013098537A
Publication Date:
January 31, 2018
Filing Date:
May 08, 2013
Export Citation:
Assignee:
Toppan Printing Co., Ltd.
International Classes:
C09D201/00; B32B27/30; B65D65/40; B65D81/24; C08J7/04; C09D7/40; C09D101/00
Domestic Patent References:
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Foreign References:
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| CN103842452A |
Attorney, Agent or Firm:
Ichi Hirose
Toru Miyasaka
Toru Miyasaka
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