Application of waterborne back-coating emulsion (humectant) in packaging industry

A humectant and back-coating technology, which is applied in the direction of coating, defoaming agent, paper coating, etc., can solve the problems of paper deformation and achieve the effect of ensuring beautiful appearance and simple operation

Inactive Publication Date: 2015-05-06
江苏琛亚印材科技有限公司
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AI Technical Summary

Problems solved by technology

The existing method is mainly to spray water on the back of the paper to hydrate the paper and then control the flatness of the paper. However, due to the influence of the storage period, the moisture of the paper is very easy to change with the moisture in the air in a short period of time. It will eventually cause the paper to deform

Method used

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Embodiment Construction

[0010] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments, which are only used to explain the present invention and do not limit the scope of protection.

[0011] The application of the water-based back-coating emulsion (humectant) in the packaging industry, the water-based back-coating emulsion (humectant) is pre-coated on the back of the paper through a coating machine before the paper is packaged. ) Occupies 0.8-2.4% of the weight of the paper, and the aqueous back coating emulsion (humectant) is obtained by adding appropriate additives to the acrylic resin liquid, mixing, stirring and dispersing, and filtering.

[0012] The water-based back coating emulsion (humectant) provided in this embodiment is simple to manufacture and has obvious effects. Apply the water-based back-coating emulsion (humectant) to the quilt surface of the paper. The effective molecules in the water-...

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Abstract

The invention provides an application of a waterborne back-coating emulsion (humectant), and in particular discloses an application of the waterborne back-coating emulsion (humectant) in the packaging industry. The waterborne back-coating emulsion (humectant) is coated on the back surface of a piece of paper before an article is packaged by the paper, namely the waterborne back-coating emulsion (humectant) is pre-coated on the back surface of the paper by virtue of a coating machine before the article is packaged by the paper, wherein the waterborne back-coating emulsion (humectant) accounts for 0.8-2.4% of the weight of the paper, is obtained by the steps of adding an appropriate amount of an auxiliary agent into an acrylic resin solution, mixing, stirring for dispersion and filtering, is simple and convenient to prepare and is obvious in effect. By applying the waterborne back-coating emulsion (humectant) to the packaging industry, particularly, the aluminized paper processing industry, the flatness of the paper cannot be reduced due to changes of air humidity in the long-term storage process of the paper, so that the paper is ensured to be beautiful, the operation is relatively simple and smooth in the use processes including printing and the like, and special requirements on equipment are avoided.

Description

Technical field [0001] The invention belongs to the packaging industry, and specifically relates to the application of an aqueous back coating emulsion (humectant) in the packaging industry. Background technique [0002] In the packaging industry, the moisture of paper changes during storage, resulting in changes in the flatness of the paper, and even curling, which seriously affects the printing process and the aesthetic effect, especially the aluminum-plated transfer paper that is widely used in the packaging and printing industry This is especially obvious. The existing method mainly sprays water on the back of the paper to replenish the paper and control the flatness of the paper. However, due to the influence of the storage period, the moisture of the paper is very easy to change without changing with the moisture in the air in a short time. Eventually it will cause the paper to deform. Summary of the invention [0003] In order to solve the above-mentioned problems, the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/14D21H19/20D21H21/12D21H21/06
Inventor 范晓春
Owner 江苏琛亚印材科技有限公司
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