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Production method of high-haze CPP aluminum laminated film

A production method and technology of aluminized film, applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problems that CPP films are difficult to meet the requirements, achieve good appearance effects, and improve the effect of scattering

Active Publication Date: 2016-04-20
嘉兴鹏翔包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As people have higher and higher requirements for the aesthetic effect and quality of the outer packaging of products, further requirements are put forward for the high haze of CPP films, but the existing CPP films are difficult to meet the requirements

Method used

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Embodiment Construction

[0016] The present invention will be further described in conjunction with specific embodiments.

[0017] The invention provides a kind of production method of high-haze CPP aluminized film, comprises the following steps:

[0018] Step 1: Preparation of modified PC film: The mass percentage of each raw material is polyethylene terephthalate 20-60%, PC39.5-79.5% and simethicone 0.5%, fully mixed, and the proportion of each raw material is The sum of the mass percentages is 100%; then after centrifugation in a high-speed centrifuge, it is polymerized; then the polymerized material is extruded through a twin-screw extruder, then cooled and dried to obtain a modified PC The mass percentage of the above-mentioned raw materials of the film is preferably polyethylene terephthalate 40-50%, PC 49.5-59.5%, and dimethyl silicone oil 0.5%;

[0019] Step 2: Fully mix 18-35 parts by weight of the prepared modified PC film with 54-80 parts by weight of PET, melt and extrude through a twin-s...

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Abstract

The invention discloses a production method of a high-haze CPP aluminum laminated film. The production method comprises the steps that 1, a modified PC film is prepared from, by mass, 20-60% of polyethylene terephthalate, 39.5-79.5% of PC and 0.5% of simethicone are sufficiently mixed, and the sum of the mass percent of the raw materials is 100%; the raw materials are subjected to a polymerization reaction after being centrifuged in a high-speed centrifugal machine; the materials subjected to a polymerization reaction are extruded to be molded through a twin-screw extruder and then are cooled and dried to obtain a modified PC film; 2, by weight, 18-35 parts of the modified PC film and 54-80 parts of PET are sufficiently mixed, extruded in a melt mode through the twin-screw extruder and cooled to obtain a PET base film; 3, corona treatment is carried out on the upper surface of the obtained PET base film; 4, vacuum aluminizing is carried out on the surface of the PET base film on which corona treatment is carried out through a vacuum aluminizing machine to form an aluminized layer; 5, a polyimide film layer is arranged on the aluminized layer to form the high-haze CPP aluminum laminated film.

Description

technical field [0001] The invention relates to the technical field of film production, in particular to a production method of a high haze 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 as ...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/08B32B27/28B32B37/02B32B37/24B32B38/00C08L67/02C08L69/00
CPCB32B27/08B32B27/281B32B27/36B32B37/02B32B37/24B32B38/0008B32B2037/246C08L67/02C08L69/00
Inventor 曹赤鹏
Owner 嘉兴鹏翔包装材料有限公司
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