Single-sided matte polyester film and preparation method thereof

A technology of polyester film and matt film, applied in the field of polyester film, can solve the problems of single application range, complex process, poor compatibility, etc., and achieve the effect of expanding the application range, wide application range and wide thickness range

Active Publication Date: 2017-05-31
佛山杜邦鸿基薄膜有限公司
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  • Abstract
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Problems solved by technology

[0004] Chinese patent 201110353645.X discloses a method for preparing a matte polyester film. The polyester film prepared in this patent is a double-sided matte polyester film, and the film thickness is only in the range of 20-100 μm, and its application range is single , not widely available
[0005] Chinese patent 200410016500.0 discloses a polyester film with at least one matt surface and its production method. Although the patent uses co-extrusion to make the matte surface A layer realize the function diversification through the composite surface C layer, it needs to have The middle B layer is used as the connection layer, which needs to be prepared by three screw extruders, the process is complicated, and its product application range is limited to the packaging field
[0006] Chinese patent 200810015273.8 discloses a single-sided matte polyester film and it...

Method used

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  • Single-sided matte polyester film and preparation method thereof

Examples

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preparation example Construction

[0030] The preparation method of above-mentioned single-sided matt polyester film comprises following processing steps:

[0031] (1) Mixing process: Accurately weigh the weight of each raw material component through a belt scale, and then mix and feed into the extruder;

[0032](2) Control the temperature of the extruder within the range of 230~300°C, stir to make the raw materials fully mixed and melted, and then cast the melt on the cold drum with a high-pressure film to obtain a semi-finished product;

[0033] (3) After the above-mentioned semi-finished product is preheated to exceed the glass transition temperature of polyester by infrared and preheating rollers, it is stretched longitudinally under the condition of infrared lamp irradiation with a longitudinal stretch ratio of 2 to 4 times, cooled and shaped, and then preheated. After the hot roll is preheated, the transverse stretching ratio is 2~5 times, and the shape is set at a temperature of 150~~240°C, and then cool...

Embodiment 1

[0036] In this example, the difference in film properties produced by longitudinal comparison of additive masterbatch slices with different mass ratios and different particle sizes in the present invention is described. At the same time, the present invention also compares the performance differences produced by different structures , the following are the specific structures of different experiments, and the performance differences produced by them are listed in Table 1.

[0037] a: The thickness of the polyester film is 100 μm, the base film layer is a common layer, use 30wt% blank polyester chips, 10wt% masterbatch chips and 60wt% production recycling chips; the thickness of the matt film layer is 10μm, Use 65wt% matt masterbatch chip with 3wt% silicon content and 3μm particle size and 20wt% blank polyester chip.

[0038] b: The thickness of the polyester film is 100 μm, the formula of the base film layer is the same as that of a, the thickness of the matt film layer is 10 ...

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Abstract

The invention discloses a single-sided matte polyester film. The single-sided matte polyester film is provided with a co-extruded double-layer structure formed by compounding a matte film layer and a base film layer, wherein the matte film layer is prepared from 10%-100% of polyester masterbatch containing an additive and the balance of polyester base materials, wherein the content of the additive in the polyester masterbatch accounts for 6%-10% of the total mass of the polyester masterbatch, and the glossiness of the matte film layer is smaller than 80%. According to the single-sided matte polyester film, on the basis of good physical and mechanical performance, the available variety of the base film layer, including a white layer, a high-brightness layer, a colored layer, a heat seal layer and an ordinary polyester layer, is expanded by optimizing the matte film layer and the preparation process for double-layer co-extruding forming of the matte film layer and the base film layer, so that the application range of the single-sided matte polyester film is wide.

Description

technical field [0001] The invention relates to the field of polyester films, in particular to a single-sided matte polyester film and a preparation method thereof. Background technique [0002] Polyester film has a wide range of applications. With the rapid development of related technologies, matte polyester film has a hazy and artistic quality due to its unique low gloss, and has high haze, good aluminum plating and printing performance And other characteristics, won people's favor. Single-sided matte film has low gloss because one side is matte layer, which can achieve the effect of ordinary matte film, while the other side layer is transparent layer. Customers can carry out subsequent processing on this surface layer to achieve Some special use effects, so the variety of surface types can make customers more selective and further expand the application range. [0003] In the prior art, there have been many researches and developments on matte polyester films, most of ...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/20B29D7/01
CPCB29D7/01B32B27/08B32B27/20B32B27/36
Inventor 谢勇黄亦迎周健冯黎明
Owner 佛山杜邦鸿基薄膜有限公司
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