Matting material for BOPP matting film, preparation method thereof, and BOPP matting film

A matting film and masterbatch technology, which is applied in the field of BOPP matting film, matting material for BOPP matting film and its preparation, can solve the problems of poor matting effect on both sides of the film, improve uneven dispersion of matting, improve flow dispersion, and improve matting The effect of uniformity

Pending Publication Date: 2020-05-08
GUANGDONG DECRO PACKAGE FILMS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, the purpose of the present invention is to provide a kind of matting material for BOPP matting film, which can improve the overall matting uniformity of BOPP matting film, especially Reduce the gloss on both sides of the film and increase the haze on both sides of the film, reduce the thickness of the matte layer, and increase the production speed

Method used

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  • Matting material for BOPP matting film, preparation method thereof, and BOPP matting film
  • Matting material for BOPP matting film, preparation method thereof, and BOPP matting film

Examples

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Effect test

Embodiment 1

[0025] The matting material for the BOPP matting film of the present embodiment contains 46% copolymerized polypropylene, 40% high-density polyethylene, 10% masterbatch A, and 4% antioxidant masterbatch respectively by weight percentage. The above-mentioned copolymerized polypropylene is specifically two High-density polyethylene with a melt index of 5g / 10min (230°C, 2.16kg), the molecular weight distribution curve is a unimodal high-density polyethylene, and the melt index range is 0.03g / 10min (190°C, 2.16kg). kg). Wherein the masterbatch A contains 60% of the masterbatch matrix and 40% of the hydrogenated petroleum resin by weight percentage respectively, wherein the antioxidant masterbatch contains 95% of the masterbatch matrix and 5% of the antioxidant by weight percentage respectively, and the antioxidant specifically selects commercially available The 1010. The masterbatch bases are all polypropylene copolymers.

[0026] The preparation method of the matting material f...

Embodiment 2

[0029] The matting material for the BOPP matting film of the present embodiment contains 47% copolymerized polypropylene, 36% high-density polyethylene, 15% masterbatch A, and 2% antioxidant masterbatch respectively by weight percentage. The above-mentioned copolymerized polypropylene is specifically three High-density polyethylene, the melt index is 6.5g / 10min (230°C, 2.16kg), the high-density polyethylene is a high-density polyethylene with a single peak in the molecular weight distribution curve, and the melt index range is 0.15g / 10min (190°C, 2.16kg). Wherein the masterbatch A contains 40% of the masterbatch matrix and 60% of the hydrogenated petroleum resin by weight percentage, wherein the anti-oxidation masterbatch contains 90% of the masterbatch matrix and 10% of the antioxidant by weight percentage, and the antioxidant is specifically selected from commercially available 168. The masterbatch bases are all polypropylene copolymers.

[0030] The preparation method of ...

Embodiment 3

[0033] The matting material for the BOPP matting film of this embodiment contains 53% copolymerized polypropylene, 40% high-density polyethylene, 5% masterbatch A, and 2% anti-oxidation masterbatch by weight percentage, and the above-mentioned copolymerized polypropylene is binary Copolymer, melt index is 11g / 10min (230 ℃, 2.16kg), described high-density polyethylene is the high-density polyethylene that molecular weight distribution curve is bimodal, and melt index range is 1.5g / 10min (190 ℃, 2.16kg ). Wherein the masterbatch A contains 50% of the masterbatch matrix and 50% of the rosin resin by weight percentage respectively, wherein the antioxidant masterbatch contains 92% of the masterbatch matrix and 8% of the antioxidant by weight percentage respectively, and the antioxidant specifically selects commercially available 626. The masterbatch matrix is ​​homopolypropylene.

[0034] The preparation method of the matting material for the BOPP matting film of the present embo...

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Abstract

The invention relates to the technical field of biaxially oriented polypropylene extinction films, and concretely relates to a matting material for BOPP, a preparation method thereof, and a BOPP matting film. The matting material for BOPP is prepared from, by weight, 40-60% of co-polypropylene, 35-55% of high-density polyethylene, 5-15% of a master batch A and 0.5-5% of an antioxidant master batch, wherein the master batch A comprises a master batch matrix and hydrogenated petroleum resin or rosin resin, and the master batch matrix is polypropylene. The preparation method of the matting material for the BOPP comprises the following steps: mixing the co-polypropylene, the high-density polyethylene, the master batch A and the antioxidant master batch in a high-speed mixer, and performing extrusion granulation by adopting a double-screw extruder at an extrusion temperature of 225-240 DEG C. The BOPP matting film prepared from the matting material for BOPP is good in overall extinction uniformity, particularly, the glossiness of the two sides of the film is reduced, the haze of the two sides of the film is improved, the thickness of a matting layer is reduced, and the production speedis increased.

Description

technical field [0001] The invention belongs to the technical field of biaxially stretched polypropylene matting film (BOPP matting film for short), and specifically relates to a matting material for a BOPP matting film, a preparation method thereof and a BOPP matting film. Background technique [0002] Biaxially oriented polypropylene film is referred to as BOPP film, among which BOPP matting film is the most common high-grade packaging film. In the production process of BOPP matting film, it is necessary to add 100% matting material to the surface layer of the co-extrusion film. After biaxial stretching, the surface of the film will be roughened, so as to produce diffuse reflection of light and achieve a matting (matte) effect. The use of BOPP matting film on packaging products can give people a soft, stylish and elegant high-end feeling, and can also eliminate eye fatigue. Therefore, BOPP matting film is more and more widely used in the packaging field. With the improveme...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/06C08L57/02C08L93/04C08K5/134C08K5/526C08J5/18
CPCC08L23/14C08L23/06C08J5/18C08J2323/14C08J2423/06C08J2323/06C08J2423/14C08L2203/16C08L2205/03C08L2207/062C08L57/02C08L93/04C08K5/1345C08K5/526
Inventor 雷炳荣刘家杰
Owner GUANGDONG DECRO PACKAGE FILMS
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