Biaxially oriented polyester matte precoat and preparation method thereof

A biaxially stretched polyester and pre-coated film technology, applied in polyurea/polyurethane coatings, chemical instruments and methods, coatings, etc.

Inactive Publication Date: 2014-07-09
KANGDE XIN COMPOSITE MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating disclosed in CN102816512 is only suitable for wood mater...

Method used

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  • Biaxially oriented polyester matte precoat and preparation method thereof
  • Biaxially oriented polyester matte precoat and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take the biaxially oriented polyester (BOPET) matte pre-coating film with a width of 1300mm as an example to describe in detail.

[0036] refer to figure 1 , first prepare the BOPET matt substrate (1). The substrate (1) consists of a polyester layer (4) and a matt coating (5). Wherein, the thickness of the polyester layer (4) is 12 microns, and the thickness of the matte coating (5) is 3 microns. Firstly, a biaxially oriented polyester film (4) is processed by using biaxially oriented polyester production equipment, and a layer of matte coating (5) is evenly coated on one surface thereof to obtain the substrate (1), the substrate (1) The thickness is 15 microns. 83.3 parts of aliphatic water-based polyurethane emulsion (U8001), 1.3 parts of lauryl alcohol ester, 0.3 part of polyoxypropylene glyceryl ether, 0.1 part of BYK-346, 3 parts of silica matting powder and 12 parts of HDI-IPDI composite trimer (XD803) After mixing evenly in a high-speed disperser and filterin...

Embodiment 2

[0049] Take the biaxially oriented polyester (BOPET) matte pre-coating film with a width of 1650mm as an example to describe in detail.

[0050] refer to figure 1 , first prepare the BOPET matt substrate (1). 83.2 parts of aliphatic water-based polyurethane emulsion (INCOREZ W2400), 1.2 parts of diethylene glycol monobutyl ether, 0.4 parts of ethanol, 0.2 parts of BYK-345, 5 parts of polymethylurea formaldehyde polymer powder and 10 parts of HDI trimer ( XM501) into a high-speed mixer, mixed evenly in a high-speed disperser and filtered, then coated on the surface of a commercially available bright BOPET film (specification 12μm*1670mm*12000m) by roller coating, and dried to form a BOPET matte base Material (1), its specification becomes 15μm*1670mm*12000m.

[0051] refer to figure 1 : Preparation of BOPET matte pre-coating film. The pre-coating film is formed by sequentially coating a 0.01 μm PEI intermediate layer (2) and a 25 μm composite hot-melt adhesive LDPE layer on...

Embodiment 3

[0053] Taking the biaxially oriented polyester (BOPET) matte pre-coating film with a width of 1650mm as an example, it will be described in detail.

[0054] refer to figure 1 , first prepare the BOPET matt substrate (1). 89.92 parts of solvent-based polycarbonate polyurethane dispersion (B01-7), 0.03 parts of defoamer (XPT-118), 0.05 parts of leveling agent polyether modified polydimethylsiloxane (BD-3308) , 6 parts of silica matting agent (OK520) and 4 parts of aliphatic polyisocyanate curing agent (Z4470SN) were mixed uniformly in a high-speed disperser and filtered, and then coated on a commercially available bright BOPET film (specification 12 μm) by roller coating *1670mm*12000m) surface, after drying to form a BOPET matt substrate (1), its specification becomes 15μm*1670mm*12000m.

[0055] refer to figure 1 : Preparation of BOPET matte pre-coating film. Its processing method is identical with embodiment 2.

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Abstract

The invention discloses a biaxially oriented polyester matte precoat and a preparation method thereof. The method includes: coating the first surface of light biaxially oriented polyester film with matte varnish so as to form a matte coating, wherein the light biaxially oriented polyester film and the matte coating form the base material of the biaxially oriented polyester matte precoat; coating the second surface of the light biaxially oriented polyester film with an aqueous polyethyleneimine solution so as to form a middle layer; and compounding at least one of ethylene-vinyl acetate, low-density polyethylene, ethylene-ethyl acrylate and ethylene-methyl acrylate on the middle layer through an extrusion compounding process so as to form a hot melt adhesive layer. The biaxially oriented polyester matte precoat obtained by utilization of the method has characteristics of high color saturation, appropriate matte degree, high tensile strength, high stiffness and high evenness, and improves the exquisite degree of printing products.

Description

technical field [0001] The invention relates to the technical field of printing, in particular, the invention relates to a biaxially stretched polyester matt precoat film and a preparation method thereof. Background technique [0002] In the packaging industry, biaxially oriented polyester (BOPET) films are widely used for their excellent performance. BOPET is colorless, odorless, tasteless, non-toxic, high tensile strength, toughness and good transparency. After coating, it can play a good role in waterproof and tear-proof protection when covered on packaging materials. But the polyester film used in the packaging industry is usually bright, and the matte polyester film has a special effect of elegant surface, which can give people a simple and heavy feeling when covered on the packaging material, and the color is rich and not arrogant. , very popular with consumers. [0003] Matte polyester film is usually prepared by multi-layer co-extrusion process, which is divided in...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J123/08C09J131/04C09J123/06C09J133/08C09D175/04C09D175/14C09D175/06C09J7/29
CPCB32B27/08B32B27/30B32B27/32C09J123/06C09J2423/04C09J2431/00C09J2433/00C09J2467/006C09J2479/086C09J123/0853C09J123/0869B32B7/12B32B27/36B32B2255/10B32B2255/26B32B2307/518B32B2307/75C09J7/29C09J2301/162C09J2301/304C09J2301/414
Inventor 钟玉武俊王慧荣
Owner KANGDE XIN COMPOSITE MATERIAL CO LTD
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