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Pre-coating film and preparation method thereof

A pre-coating and pre-gluing technology, applied in chemical instruments and methods, film/sheet adhesives, adhesive types, etc., can solve problems such as increased production costs, low processing efficiency, and film sticking, etc. Achieve the effect of low production cost, high processing efficiency and high transparency

Active Publication Date: 2014-04-23
上海奇想青晨新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] 1. The solid content of traditional water-based styrene-acrylic emulsion generally does not exceed 55%. It is difficult to dry when directly used on the pre-coated film. Not only does it consume high energy, but also the processing efficiency is low, resulting in a sharp increase in production costs. The Biggest Barrier to Using Emulsions on Precoated Films
[0016] 2. After the traditional water-based styrene-acrylic emulsion is self-crosslinked and dried, it has a certain self-adhesiveness. It is used on the pre-coated film. After winding, it will cause adhesion between the films and affect the use.

Method used

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  • Pre-coating film and preparation method thereof

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Effect test

Embodiment 1

[0043] see figure 1 , the precoat film of the present invention comprises:

[0044] A substrate layer 1, the substrate layer 1 is a biaxially oriented polypropylene film layer or a biaxially oriented polyester film layer;

[0045] Glazing release layer 2, the glazing release layer 2 is arranged on the first surface of the substrate layer 1 and is formed by a modified glycidyloxypropyl trimethoxysilane solution;

[0046] A pre-coating layer 3, the pre-coating layer 3 is arranged on the second face of the substrate layer and is formed by polydisperse particle diameter styrene-acrylic composite emulsion, the particle size distribution of the polydisperse particle diameter styrene-acrylic composite emulsion is The range is 100-800nm, and the solid content is greater than 70%.

[0047] The preparation method of precoat film of the present invention may further comprise the steps:

[0048] 1. The substrate layer 1 is provided, and the substrate layer 1 is a biaxially oriented pol...

Embodiment 2

[0061] Embodiment 2 is basically the same as embodiment 1, and the difference is the preparation of polydisperse particle size styrene-acrylic composite emulsion, comprising the following steps:

[0062] (1) Preparation of large particle size seed emulsion: first put 15 parts by weight of butyl acrylate, 5 parts by weight of hydroxyethyl acrylate, 180 parts by weight of water, and 0.4 parts by weight of nonylphenol polyoxygen into the reactor. Vinyl ether, 0.015 parts by weight of sodium dodecylbenzenesulfonate, 0.2 parts by weight of sodium bicarbonate, and 0.8 parts by weight of ammonium persulfate were added to initiate polymerization, and reacted at 80°C for 45 minutes; 130 parts by weight of styrene, 100 parts by weight of methyl methacrylate, 3 parts by weight of acrylic acid, 70 parts by weight of water, 8 parts by weight of allyl octylphenol polyoxyethylene ether, 0.08 parts by weight of nonyl Phenol polyoxyethylene ether, 0.2 parts by weight of ammonium persulfate, an...

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Abstract

The invention discloses a pre-coating film which comprises a base material layer, a polishing anti-bonding layer arranged on the first surface of the base material layer, and a pre-coating layer arranged on the second surface of the base material layer. The invention further discloses a preparation method of the pre-coating film. Because a high-solid-content polydispersion particle size styrene-acryli emulsion obtained by adopting a special polymerization process as the pre-coating film, the pre-coating film has good bonding force, excellent bonding strength for printing materials produced by various printing technologies, especially a digital printing technology, and embossing processes such as laminated embossing and rolling can be realized very well. Meanwhile, because modified glycidoxypropyltrimethoxy silane is used as a polishing anti-bonding layer, the pre-coating film has the advantages of strong universality, high color saturation, high brightness, high level and smooth degree, high flatness and the like, and meets the requirement of lamination of increasingly varied printing materials.

Description

technical field [0001] The invention relates to the field of printing coating, in particular to a precoating film which can be used for coating of paper printed matter and a preparation method thereof. Background technique [0002] Film lamination, that is, film sticking, is a processing technology in which plastic film is coated with an adhesive, and paper printed matter is heated and pressurized to bond together to form a paper-plastic product. The coated printed matter has a smoother and brighter surface due to the addition of a thin and transparent plastic film on the surface, thereby improving the gloss and fastness of the printed matter. Antifouling, wear resistance, folding resistance, chemical corrosion resistance and other functions. [0003] The coating process mainly includes solvent-based coating, water-based coating and pre-coating. Among them, solvent-based coating has been gradually eliminated due to large pollution and fire hazards in the production process;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J133/08B32B27/08C08F220/18C08F220/14C08F220/28C08F220/06C08F212/08
Inventor 赵永旗殷世长李军生
Owner 上海奇想青晨新材料科技股份有限公司
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