A kind of matting white polyester film and preparation method thereof

A technology of polyester film and light polyester, applied in the field of matte white polyester film and its preparation, can solve the problems of low production cost, secondary pollution, poor adhesion of white matte layer, etc., achieve low production cost, avoid Pollution, Gloss controllable effect

Active Publication Date: 2019-06-07
温州强润新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages of poor adhesion and secondary pollution of the white matte layer in the prior art, the present invention provides a matte white polyester film, which saves the subsequent process of off-line coating and avoids the pollution of secondary processing , reducing the waste of resources, and environmental protection, low production cost

Method used

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  • A kind of matting white polyester film and preparation method thereof
  • A kind of matting white polyester film and preparation method thereof
  • A kind of matting white polyester film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A matting white polyester film, including ABC three-layer structure, B layer is the middle core layer, the material is super bright polyester chip; A layer is the upper surface white matting layer, the material is matting white masterbatch; C layer is the lower The surface white matting layer is made of matting white masterbatch, which is obtained by melting, blending and granulating polyester chips, silica hollow microspheres, titanium dioxide and silane coupling agent.

[0024] The thickness of layer B accounts for 60%-80%, the thickness of layer A accounts for 10%-20%, and the thickness of layer C accounts for 10%-20%.

[0025] A preparation method for matting white polyester film, comprising the following steps:

[0026] Step 1: First, add polyester chips into a pulverizer to grind polyester powder with a particle size of 200-300nm, and then add polyester powder with a mass percentage of 35% to 50%, polyester powder with a mass percentage of 9% to 15% Silica hollow...

Embodiment 2

[0037] A preparation method for matting white polyester film, comprising the following steps:

[0038] Step 1: First, put the polyester chips into a pulverizer to grind them into polyester powder with a particle size of 200-300nm. The central speed of the pulverizer is 2000r / min, and the motor power is 75KW. According to mass percentage, then add 44.2% polyester powder, 15% silica hollow microspheres, 40% titanium dioxide, 0.8% HK570 silane coupling agent into the mixer, first at a speed of 2500r / min Mix the materials for 13 minutes, then adjust the speed to 20r / min, and mix the materials for 2 minutes. Finally, add the mixed raw materials into the extruder, and melt and extrude them at 250°C to 280°C to prepare a matte white masterbatch;

[0039] Step 2: Add the matte white masterbatch prepared in step 1 to the auxiliary twin-screw extruder for extrusion (layer A); the main extruder (layer B ) is 100% super-bright polyester chip according to the mass percentage, and the raw ...

Embodiment 3

[0045] The difference between this embodiment and embodiment 2 is that the mass ratio of the extruded material from the main extruder and two auxiliary twin-screw extruders is 15:65:20, the thickness of the white matting layer of the film A layer of 50um is 7.5um, and the thickness of the C layer is 7.5um. The thickness of the white matting layer is 10um.

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Abstract

The invention relates to polyester films and preparation methods therefor and discloses a delustering white polyester film and a preparation method therefor. The delustering white polyester film comprises a structure of three layers, i.e., a layer A, a layer B and a layer C, wherein the layer B is a middle core layer and is prepared from super-bright polyester chips, the layer A is an upper surface layer, i.e., a white delustering layer and is prepared from delustering white masterbatch, and the layer C is a lower surface layer, i.e., a white delustering layer and is prepared from the delustering white masterbatch. The preparation method comprises the steps of preparing corresponding delustering white masterbatch, then, carrying out extrusion drawing by an extruder, carrying out cooling sizing, carrying out pulling slitter edge removal, carrying out corona treatment, carrying out thickness detection, and the like. The delustering white polyester film has good printing and laminating performance, the surface is low in luster and high in haze, the anti-electrostatic property and folding property are good, and the delustering white polyester film also has an obvious social benefit in the aspects of energy saving, consumption reduction and environment-friendliness.

Description

technical field [0001] The invention relates to a polyester film and a preparation method thereof, in particular to a matting white polyester film and a preparation method thereof. Background technique [0002] Matte white polyester film is mainly used in paper-plastic composite of booklets, advertising brochures, gift bags, etc., and even used as a substitute for paper, with a broad market. In terms of performance, it is required to have a good matting effect, uniform matting degree, fine surface, and excellent haze performance; the matting surface has good printing and composite performance, and the surface is flat; good stiffness, minimize thickness, and easy composite processing ; Excellent mechanical properties, good durability; no defects in appearance, especially when combined with dark paper; UV (ultraviolet light) ink or bronzing processing performance on the matte surface is good. Existing extinction white polyester film on the domestic market is to prepare white ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/36B32B27/18B32B27/08B32B33/00B32B38/00B29C48/395C08L67/02C08K9/06C08K7/26C08K3/22C08J3/22
CPCB29C48/395B32B27/08B32B27/18B32B27/36B32B33/00B32B38/0008B32B38/0012B32B2038/0028B32B2307/21B32B2307/408C08J3/226C08J2367/02C08K3/22C08K7/26C08K9/06C08K2003/2241C08L2203/16C08L67/02
Inventor 易志龙胡培隆袁慎朋张明海
Owner 温州强润新材料科技有限公司
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