Single face high glossiness polyester film

A polyester film and high-gloss technology, applied in the field of polyester film, can solve the problems of insufficient haze, affecting the optical properties of the polyester film surface, and insufficient gloss, so as to improve adhesion, increase gloss, and improve winding quality effect

Inactive Publication Date: 2005-01-26
WEIFANG FUWEI PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking the most commonly used polyester film with a thickness of 12 μm as an example, the surface gloss of a single-layer ordinary polyester film is only 131%-132%, and the haze is as high as 2.5%-3.0%. The polyester film with a three-layer structure, Reducing or removing the additive particles in the core layer can increase the surface gloss of the polyester film to 135%, and reduce the haze to 1.3%-2.0%, but the original content is still retained on both surfaces of the polyester film. Additives, which affect the optical properties of the polyester film surface, resulting in insufficient gloss and low haze on both surfaces

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0009] Example 1: A single-sided high-gloss polyester film with a thickness of 12 μm and an additive of silicon dioxide.

[0010] The single-sided high-gloss polyester film has a core layer thickness of 8.4 μm. It is made of film-grade glossy polyester chips and 50% polyester film trimmings of the polyester film. Production; the thicknesses of the two surface layers are respectively 1.8 μm, select film-grade glossy polyester chips and polyester chips containing 3000 ppm by weight of additive silicon dioxide for use, and make after the two are uniformly mixed, and one of the surface layers contains Polyester and 27% of the weight of polyester in this layer of silica, i.e. the content of additive silica in this layer is 810 ppm by weight, another surface layer contains polyester and 5% of the weight of polyester in this layer The silicon dioxide, that is, the content of the additive silicon dioxide in the layer is 150 ppm by weight, and the particle size of the above-mentioned s...

example 2

[0019] Example 2: A single-sided high-gloss polyester film with a thickness of 12 μm and an additive of kaolin.

[0020] The single-sided high-gloss polyester film has a core layer thickness of 8.0 μm, all made of film-grade glossy polyester chips; the thickness of the two surface layers is 2.0 μm, and film-grade glossy polyester chips and additives are used Kaolin is 3200ppm by weight of polyester chip, the two are evenly mixed to make, one of the surface layers contains polyester and 30% of the weight of polyester in this layer of kaolin, that is, the content of additive kaolin in this layer is by weight It is 960ppm, another surface layer contains polyester and kaolin of 8% of the polyester weight of this layer, that is, the content of additive kaolin in this layer is 256ppm by weight, and the particle size of the above-mentioned kaolin is controlled at 1.6μm and below .

[0021] The production process of this example is the same as Example 1.

[0022] A single-sided high...

example 3

[0023] Example 3: A single-sided high-gloss polyester film with a thickness of 15 μm and an additive of silicon dioxide.

[0024] The single-sided high-gloss polyester film, with a core layer thickness of 11 μm, is made of film-grade glossy polyester chips and 35% of the weight of the polyester film trimmed polyester film re-granulated chips as raw materials, which are evenly mixed. ; The thickness of the two surface layers is 2 μm respectively, select film-grade glossy polyester chips and polyester chips containing 3000ppm by weight of additive silicon dioxide for use, and make after the two are uniformly mixed, wherein one of the surface layers contains polyester chips and 25% of the polyester weight of the layer of silicon dioxide, that is, the content of the additive silicon dioxide in this layer is 750ppm by weight, and another surface layer contains polyester and 5% of the polyester weight of the layer of silicon dioxide. The content of silicon oxide, that is, the additi...

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Abstract

The invention relates to a single-surface high blare alkyd film, which includes two surface layers and a core layer between them, the core layer contains alkyd and trimming slivers material with weight about 0-50% of the alkyd weight, one surface layer contains additives with weight of 450ppm-1000ppm of the alkyd, another surface contains the same additives with weight of 0-300ppm. One surface is increased in additives content, improves the smoothness of the alkyd film surface, and reduces the friction.

Description

technical field [0001] The invention relates to a polyester film, more specifically a single-sided high-gloss polyester film. Background technique [0002] Polyester film is widely used in food, medicine, cigarettes, cosmetics, etc. Packaging and printing, photosensitive, drawing and other technical fields. However, because the polyester film is very thin, its thickness is generally 6-125 μm, the thinner the polyester film, the worse the stiffness, and the greater the friction on the film surface, which is manifested as adhesion, winding and cutting difficulties. In order to reduce the adhesion of the polyester film and improve the quality of winding, the usual method is to add additives to the polyester film. Although the addition of additives effectively increases the slipperiness of the polyester film surface, reduces friction, and improves adhesion, it also increases the scattering and refraction properties of the polyester film and reduces the transmittance of the pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36C08K3/36C08L67/00
Inventor 孟凡寅王小明李学华刘志强郭凤刚
Owner WEIFANG FUWEI PLASTIC
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