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BOPP film for in-film labeling and preparation method thereof

A labeling and film technology, applied in chemical instruments and methods, applications, household appliances, etc., can solve the problems of poor thermal stability of films, difficult and easy adhesion of ink, high static electricity of films, etc., to reduce thermal shrinkage rate and prevent film adhesion , the effect of strong conductivity

Pending Publication Date: 2020-09-22
ANHUI GUOFENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing in-film labeling technology, there are problems such as poor thermal stability of the film at high temperature, high static electricity of the film, difficulty in ink adhesion, and bubbles in labeling.

Method used

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  • BOPP film for in-film labeling and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A BOPP film for in-film labeling proposed by the present invention is composed of an upper surface layer, a core layer and a lower surface layer, and the thicknesses of each layer are 1.0 μm, 45.5 μm, and 3.5 μm in sequence.

[0028] The upper surface layer is an anti-adhesive layer, and its material is composed of the following components by weight: 95% of polypropylene copolymer, 5% of anti-adhesive masterbatch;

[0029] Among them, the anti-adhesive masterbatch is homopolypropylene loaded with spherical nano-silica particles, the weight ratio of spherical nano-silica particles to homo-polypropylene is 4:96, and the particle size of spherical nano-silica particles is 2μm, the melt index of homopolypropylene is 2.5g / 10min (230℃ / 2.16kg);

[0030] The melt index of the copolymerized polypropylene is 3.0g / 10min (230°C / 2.16kg).

[0031] The core layer is a polypropylene layer, and its material is composed of the following components by weight: homopolypropylene 90%, antis...

Embodiment 2

[0040] A BOPP film for in-film labeling proposed by the present invention is composed of an upper surface layer, a core layer and a lower surface layer, and the thicknesses of each layer are 1.2 μm, 44.8 μm, and 4.0 μm in sequence.

[0041] The upper surface layer is an anti-adhesive layer, and its material is composed of the following components by weight: 96% of polypropylene copolymer, 4% of anti-adhesive masterbatch;

[0042] Among them, the anti-adhesive masterbatch is homopolypropylene loaded with spherical nano-silica particles, the weight ratio of spherical nano-silica particles to homo-polypropylene is 5:95, and the particle size of spherical nano-silica particles is 4μm, the melt index of homopolypropylene is 3.0g / 10min (230℃ / 2.16kg);

[0043] The melt index of the copolymerized polypropylene is 3.2g / 10min at 230°C / 2.16kg.

[0044]The core layer is a polypropylene layer, and its material is composed of the following components by weight: homopolypropylene 92%, antis...

Embodiment 3

[0053] A BOPP film for in-film labeling proposed by the present invention is composed of an upper surface layer, a core layer and a lower surface layer, and the thicknesses of each layer are 1.5 μm, 44.5 μm, and 4.0 μm in sequence.

[0054] The upper surface layer is an anti-adhesive layer, and its material is composed of the following components by weight: 97% of polypropylene copolymer, 3% of anti-adhesive masterbatch;

[0055] Among them, the anti-adhesive masterbatch is homopolypropylene loaded with spherical nano-silica particles, the weight ratio of spherical nano-silica particles to homo-polypropylene is 6:94, and the particle size of spherical nano-silica particles is 5μm, the melt index of terpolymer is 3.2g / 10min(230℃ / 2.16kg);

[0056] The melt index of the copolymerized polypropylene is 3.5g / 10min at 230°C / 2.16kg.

[0057] The core layer is a polypropylene layer, and its material is composed of the following components by weight: homopolypropylene 96%, antistatic s...

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Abstract

The invention discloses a BOPP film for in-film labeling and a preparation method of the BOPP film, and relates to the technical field of BOPP films. The BOPP film is composed of an upper surface layer, a core layer and a lower surface layer, wherein the upper surface layer is an anti-sticking layer, and is composed of, by weight, 95-97% of co-polypropylene and 3-5% of anti-sticking masterbatch; the core layer is a polypropylene layer and is composed of, by weight, 90-96% of homo-polypropylene and 4-10% of antistatic stiffness-increasing masterbatch; and the lower surface layer is a matt layerand is made of matt masterbatch. The BOPP film for in-film labeling has the advantages of high elastic modulus, low thermal shrinkage rate, favorable high temperature resistance, low surface resistance, favorable fitting property with the mold and favorable printing effect, and can be used for in-bottle labeling in the cosmetics industry, the pharmaceutical industry, cleaning supplies and the like.

Description

technical field [0001] The invention relates to the technical field of BOPP films, in particular to a BOPP film for in-film labeling and a preparation method thereof. Background technique [0002] At present, the outer label of the container generally uses a printed BOPP film (biaxially oriented polypropylene film), and the film is pasted on the surface of the container after printing. The BOPP film label has many disadvantages, such as a large investment in production process and equipment, and it needs to go through processes such as gluing and drying, which is inefficient; glue is used in the pasting process, which is not environmentally friendly; the film and container are not conformable, easy to wrinkle, and affect the appearance ;The adhesive fastness of the film is limited by the bonding strength of the glue. When the storage time is long or the temperature and humidity of the storage environment change greatly, the bonding strength of the glue will decrease, and the...

Claims

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Application Information

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IPC IPC(8): B32B27/32B32B27/06B32B27/08B29C48/21B29C55/14B29C69/00B29L7/00
CPCB32B27/32B32B27/08B32B38/0008B32B38/0004B29C48/21B29C55/143B29C69/001B29L2007/00
Inventor 张勋吉谢城城
Owner ANHUI GUOFENG PLASTIC
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