Preparation method of high-barrier CPP (casting polypropylene) aluminized film

A production method and technology of aluminized film, which are applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problem that the CPP film is difficult to meet the requirements, and achieve the effect of good anti-fracture

Inactive Publication Date: 2016-05-18
嘉兴鹏翔包装材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As people have higher and higher requirements for the aesthetic effect and quality of the outer packaging of products, further req...

Method used

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Embodiment Construction

[0015] The present invention will be further described in conjunction with specific embodiments.

[0016] The invention provides a kind of production method of high barrier CPP aluminized film, comprises the following steps:

[0017] Step 1: Prepare a high-barrier film: fully mix 35-50 parts by weight of polyethylene terephthalate, 5-10 parts by weight of o-phenylphenol, and 5-20 parts by weight of polyvinylidene chloride, and then centrifuge at a high speed After being centrifuged in the machine, it is polymerized; then the polymerized material is extruded through a twin-screw extruder, then cooled and dried to obtain a high-barrier film; among them, polyethylene terephthalate, Both o-phenylphenol and polyvinylidene chloride are materials with good barrier properties, and the high barrier film made in this way has good barrier properties; preferably, the proportioning of the above raw materials is preferably as follows: polyethylene terephthalate 40 parts by weight of dieste...

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Abstract

The invention discloses a preparation method of a high-barrier CPP (casting polypropylene) aluminized film, which comprises the following steps: step 1, preparation of a high-barrier film: completely mixing the following ingredients by weight parts: 35-50 parts of polyethylene terephthalate (PET), 5-10 parts of o-phenylphenol and 5-20 parts of polyvinylidene chloride, centrifuging the mixture in a high-speed centrifuge, performing polymerization reaction; then performing extrusion molding on the material after polymerization reaction with a twin-screw extruder, cooling and drying to obtain the high-barrier film; step 2, selecting a PET base film with haze of 55-59.8% and light transmittance of 86-89%; and pasting the high-barrier film obtained in step 1 on the PET base film to obtain a PET film; step 3, performing corona on the upper surface of the PET film obtained in step 2; step 4, paving a fiberglass mesh layer on the surface of the PET film after corona; and step 5, performing vacuum aluminizing on the surface of the fiberglass mesh layer of the PET film by a vacuum aluminizing machine to form an aluminized layer, so as to obtain the high-barrier CPP aluminized film.

Description

technical field [0001] The invention relates to the technical field of film production, in particular to a production method of a high-barrier CPP aluminized film. Background technique [0002] Traditional flexible plastic packaging generally uses aluminum foil with a thickness of 6-20 μm. The aluminum foil has a silvery white luster. Printing transparent ink directly on the aluminum foil can have a unique metallic luster. Aluminum foil has good shading properties, gas barrier properties, moisture barrier properties, good thermal conductivity, and electromagnetic shielding properties. Among them, the most prominent is the barrier performance of aluminum foil. Under the premise of sufficient thickness of aluminum foil, it can completely block gas and moisture. Therefore, aluminum foil is an indispensable material in flexible plastic packaging base film and is widely used in pharmaceutical packaging, food Packaging, especially the flexible packaging of high-end products such ...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/18B32B27/12B32B17/02B32B17/10B32B33/00B32B37/08B32B38/16B32B38/00B32B38/08B29C47/00
CPCB32B27/36B29C48/001B32B17/02B32B17/10B32B27/08B32B27/12B32B27/18B32B33/00B32B37/08B32B38/0008B32B38/08B32B38/164B32B2262/101B32B2307/414B32B2307/558B32B2307/582B32B2307/714
Inventor 曹赤鹏
Owner 嘉兴鹏翔包装材料有限公司
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