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Paper-based high-barrier combined coating method and system

A coating method and high-barrier technology, applied in paper coating, non-polymer organic compound addition, papermaking, etc., can solve the problems of unfriendly environment, non-degradable food paper, etc., to maintain flexibility and uniformity, meet the requirements of coating Cloth requirements, the effect of improving the hydrophobic effect

Pending Publication Date: 2022-05-13
湖南依明机械科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a paper-based high-barrier combined coating method and system, which can solve the problem that the existing high-barrier performance food paper cannot be degraded and is not environmentally friendly

Method used

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  • Paper-based high-barrier combined coating method and system
  • Paper-based high-barrier combined coating method and system

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Embodiment Construction

[0033] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in detail, but it should be understood that protection scope of the present invention is not limited by specific embodiment.

[0034] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0035] Such as figure 1 Shown, according to a kind of paper base high barrier combined type coating method of preferred embodiment of the present invention, comprises the following steps:

[0036] S1, preparing cellulose nanofibrils, using carboxymethyl cellulose solution as a plasticizer and dispersant, mixing to form a coating solution for coating; specifically, improving the formulation of the coating solution: in the preparation of cellulose...

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Abstract

The invention belongs to the technical field of food barrier paper coating, and particularly discloses a paper-based high-barrier combined coating method and system.The method comprises the steps that S1, cellulose nanofibrils are prepared, a carboxymethyl cellulose solution serves as a plasticizer and a dispersing agent, and after mixing, coating liquid is formed for coating; s2, a combined coating process is adopted for multiple times of coating; s3, drying by adopting a drying oven to obtain a finished product. According to the scheme, the flexibility and uniformity of the food barrier paper coated with the cellulose nanofibrils are kept, and meanwhile the hydrophobic effect can be improved. And the coating requirements of the food barrier paper are met.

Description

technical field [0001] The invention belongs to the technical field of food barrier paper coating, in particular to a paper-based high barrier combined coating method and system. Background technique [0002] With the development of the modern transportation and logistics industry, the number of daily commodities has increased sharply, which has prompted the packaging materials to gradually develop in the direction of environmental protection, light weight, and multi-function. The demand for high-barrier paper for food is increasing, and the performance requirements are also higher. [0003] Under the existing conditions, although the use of petroleum-based polymers such as polyethylene can improve the barrier properties of paper-based materials, such materials are often difficult to degrade and easily cause environmental pollution. Therefore, need to develop a kind of degradable food paper of high barrier performance, and corresponding coating equipment thereof. [0004] A...

Claims

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Application Information

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IPC IPC(8): D21H19/10D21H17/25D21H17/26D21H17/07D21H17/14
CPCD21H19/10D21H17/25D21H17/26D21H17/07D21H17/14
Inventor 夏海波赵岩杨业高
Owner 湖南依明机械科技有限公司