Extinction material for biaxially oriented polypropylene (BOPP) film and preparation method for extinction material

The technology of film and matting powder is applied in the field of matting material for BOPP film and its preparation, which can solve the problems of reducing the market competitiveness of matting film, limited design ability, poor high temperature resistance of matting layer, etc., to achieve good matting effect and improve haze. , Improve the effect of high temperature resistance

Inactive Publication Date: 2012-12-05
JIANGYIN FINE PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, many BOPP manufacturers have limited surface extrusion equipment design capabilities, and it is difficult to ensure the surface thickness of the matte layer at high speed (generally required to be above 2.3 microns, so as to ensure proper haze), which can only be guaranteed by reducing the production speed. The thickness of the matting layer, such slow-down production will inevitably lead to an increase in the production cost of the film, reducing the market competitiveness of the matting film
In addition, the current matting material system is a polyolefin blend system, and its melting point is below 130, which leads to poor high temperature resistance of the matting layer of the film. In the subsequent processing such as compounding, it is easy to burn the matting layer and affect the quality of the film surface.

Method used

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  • Extinction material for biaxially oriented polypropylene (BOPP) film and preparation method for extinction material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Manufacture of BOPP matting material

[0037] Two-component copolymerized polypropylene 49%

[0038] High Density Polyethylene (HDPE) 48%

[0039] Silica 1.5%

[0040] PBT (polybutylene terephthalate) 1.1%

[0041] Ethylene bis stearamide (EBS) 0.2%

[0042] Antioxidant (mixture of 1010 and 168, the mass ratio of the two is 1:2) 0.2%

[0043] After the raw materials of the above formula are fully mixed with a high-speed mixer, they are extruded and granulated by a twin-screw extruder to obtain BOPP matting material. The temperature of the extruder was set at 195° C., and the rotational speed was set at 450 revolutions per minute.

Embodiment 2

[0045] Manufacture of BOPP matting material

[0046] Dipolymer polypropylene 51%

[0047] High Density Polyethylene (HDPE) 40%

[0048] Calcium Carbonate 2%

[0049] PBT 6.3%

[0050] Ethylene bis stearamide EBS 0.5%

[0051] Antioxidant (mixture of 1010 and 168, the mass ratio of the two is 1:2) 0.3%

[0052] After the raw materials of the above formula are fully mixed with a high-speed mixer, they are extruded and granulated by a twin-screw extruder to obtain BOPP matting material. The temperature of the extruder was set at 195° C., and the rotational speed was set at 450 revolutions per minute.

Embodiment 3

[0054] Manufacture of BOPP matting material

[0055] Two-component copolymerized polypropylene 39%

[0056] High-density polyethylene (HDPE) 52%

[0057] Talc 4.8%

[0058] PBT 2%

[0059] Polyethylene wax 2%

[0060] Antioxidant (mixture of 1010 and 168, the mass ratio of the two is 1:2) 0.2%

[0061] After the raw materials of the above formula are fully mixed with a high-speed mixer, they are extruded and granulated by a twin-screw extruder to obtain BOPP matting material. The temperature of the extruder was set at 195° C., and the rotational speed was set at 450 revolutions per minute.

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Abstract

The invention relates to an extinction material for a biaxially oriented polypropylene (BOPP) film and a preparation method for the extinction material. The extinction material is characterized by comprising the following raw materials in part by weight: 30 to 60 parts of polypropylene (PP) resin, 30 to 60 parts of high density polyethylene, 2 to 15 parts of inorganic extinction powder, 2 to 10 parts of polybutylene terephathalate (PBT), 1 to 3 parts of dispersing agent and 0.1 to 1.0 part of antioxidant, wherein the total parts of the components are 100. By the extinction material for the BOPP film, a uniform extinction layer can be provided, high haze and high-temperature resistance are achieved, an extinction layer can be thinned for a BOPP film manufacturer, and the production speed and production efficiency of the extinction film are improved.

Description

technical field [0001] The invention relates to a matting material for BOPP (biaxially oriented polypropylene) film and a preparation method thereof, which is used for the matting layer of the BOPP matting film, improves the thermal stability of the film, increases the haze, and can reduce the thickness of the surface layer of the matting film. Background technique [0002] The matting film can be used in food packaging (biscuits, dried fruits, tea, cakes, etc.) after being compounded to create an image of a natural product, while the covers of books, periodicals and magazines and posters can be laminated with matting film to obtain a non-reflective Appearance, giving a soft feeling and good hand feeling. If the matting film is combined with the packaging paper (or carton), the grade of the packaging can be significantly improved. This kind of packaging is widely used in tobacco, wine, clothing, footwear, perfume, cosmetics, medicine and other high-end daily necessities. A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/06C08L67/02C08K3/26C08K3/22C08K3/34C08K3/36
Inventor 盛承林陈珏媛
Owner JIANGYIN FINE PLASTICS
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