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Casting CPP aluminum plated base film

A base film and aluminum-plating technology, which is applied in the direction of layered products, synthetic resin layered products, chemical instruments and methods, etc., can solve the problems of easy peeling of the aluminum layer, affecting the oxygen barrier and water vapor barrier properties of the aluminum-coated film, and loss of plating. Barrier function of aluminum film and other problems, achieve good stability, overcome the problem of aluminum layer peeling, and increase adhesion

Inactive Publication Date: 2018-01-23
ANHUI SONGTAI PACKAGING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the current common cast CPP base film is aluminized, the aluminum layer is easy to peel off, which seriously affects the unique oxygen barrier and water vapor barrier properties of the aluminized film, and loses the barrier function of the aluminized film.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A casting CPP aluminized base film comprises successively: a heat-seal layer, a core layer, and an aluminized layer, and the core layer is arranged between the heat-seal layer and the aluminized layer; by weight percentage, the heat-sealed layer accounts for 12% of the total weight of the aluminized base film, the core layer accounts for 70% of the total weight of the aluminized base film, and the aluminized layer accounts for 18% of the total weight of the aluminized base film;

[0017] In terms of weight percentage, the heat-sealing layer is composed of 78% of copolymerized polypropylene, 7% of lubricant erucamide, and 15% of bimodal polyethylene, the core layer is 100% of homopolypropylene, and the aluminum-coated layer is It consists of 65% homopolypropylene and 35% copolymerized polypropylene.

Embodiment 2

[0019] A kind of casting CPP aluminized base film, comprising in turn: a heat-seal layer, a core layer, and an aluminized layer, the core layer is arranged between the heat-sealed layer and the aluminized layer; by weight percentage, the heat-sealed layer accounts for 24% of the total weight of the aluminized base film, the core layer accounts for 61% of the total weight of the aluminized base film, and the aluminized layer accounts for 28% of the total weight of the aluminized base film;

[0020] In terms of weight percentage, the heat-sealing layer is composed of 85% of copolymerized polypropylene, 7% of lubricant erucamide, and 8% of bimodal polyethylene, the core layer is 100% of homopolypropylene, and the aluminum-coated layer is It consists of 80% homopolypropylene and 20% copolymerized polypropylene.

Embodiment 3

[0022] A kind of casting CPP aluminized base film, comprising in turn: a heat-seal layer, a core layer, and an aluminized layer, the core layer is arranged between the heat-sealed layer and the aluminized layer; by weight percentage, the heat-sealed layer accounts for 14% of the total weight of the aluminized base film, the core layer accounts for 62% of the total weight of the aluminized base film, and the aluminized layer accounts for 24% of the total weight of the aluminized base film;

[0023] In terms of weight percentage, the heat-sealing layer is composed of 80% of copolymerized polypropylene, 6% of lubricant erucamide, and 14% of bimodal polyethylene, the core layer is 100% of homopolypropylene, and the aluminum-coated layer is It consists of 70% homopolypropylene and 30% copolymerized polypropylene.

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PUM

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Abstract

The invention relates to the technical field of plastic package, in particular to a casting CPP aluminum plated base film. The casting CPP aluminum plated base film comprises the following layers in percent by weight sequentially: 12 to 24 percent of a heat sealing layer, 62 to 70 percent of a middle core layer, and 15 to 28 percent of an aluminum plated layer; the heat sealing layer comprises thefollowing components in percent by weight: 78 to 85 percent of co-polypropylene, 6 to 10 percent of a lubricant, and 8 to 15 percent of bimodal polyethylene; the core layer adopts 100 percent of homo-polypropylene; the aluminum plated layer comprises 65 to 80 percent of homo-polypropylene, and 20 to 35 percent of co-polypropylene. The casting CPP aluminum plated base film greatly enhances the adhesive force of an aluminum layer subjected to aluminizing, overcomes the problem of aluminum layer stripping when a CPP aluminum plated film is subjected to casting compounding, and is good in stability and durable in use.

Description

technical field [0001] The invention relates to the technical field of printing and packaging, in particular to a casting CPP aluminized base film. Background technique [0002] Cast film is a kind of non-stretched, non-oriented flat extrusion film produced by melt casting and quenching. There are two ways of single-layer casting and multi-layer co-extrusion casting. Compared with blown film, it is characterized by fast production speed, high output, and excellent transparency, gloss, and thickness uniformity of the film. At the same time, because it is a post-extrusion film process, such as printing and compounding, it is very convenient, so it is widely used in the packaging of food, medical supplies, textiles, flowers, and daily necessities. The production of salivating film in my country started relatively late (in the 1980s), and the foundation is relatively weak, but the development speed is relatively fast. After nearly 20 years of continuous development and growth,...

Claims

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Application Information

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IPC IPC(8): B32B27/08C08L23/14C08L23/06C08L23/12C08K5/20
Inventor 焦国平齐继业方兴旺
Owner ANHUI SONGTAI PACKAGING MATERIALS