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Production process of vacuum aluminum-plated composite films

A technology of vacuum aluminum plating and production process, applied in layered products, metal layered products, flexible coverings, etc., can solve the problems of poor pattern gloss, small solvent residue, poor adhesion of aluminum layer, etc. The effect of smooth surface, excellent oxygen permeability and good adhesion of aluminum layer

Inactive Publication Date: 2015-05-06
NANJING CHENXIANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above problems, the present invention provides a production process of a vacuum aluminized composite film with small solvent residue, high tensile strength, and high brightness, so that the obtained composite film will not have poor adhesion of the aluminum layer , easy to deal with the aluminum powder, the phenomenon of poor gloss of the printed pattern

Method used

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  • Production process of vacuum aluminum-plated composite films

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of production technique of vacuum aluminized composite film, comprises the following steps:

[0021] 1) Selection of base material: select PVC film with low light transmittance as the base material for corona treatment, and the light transmittance of the PVE film is 10-20%;

[0022] 2) Vacuum aluminizing: the PVC film is vacuum aluminized on a vacuum aluminizing machine to form an aluminized film. The vacuum aluminizing process is unwinding the substrate → vacuuming → heating the evaporation boat → sending aluminum wire → evaporation → cooling → Flattening → winding, the vacuum degree is 1.5×10-2Pa, the temperature of the evaporation boat is controlled at 1760°C, the purity of the aluminum wire is not less than 99.99%, the wire feeding speed is 2m / min, and the thickness of the aluminum coating is 380-400 angstroms. The winding speed is 60m / min;

[0023] 3) Apply a solvent-free adhesive to the aluminum surface of the aluminized film at a coating temperature of 60...

Embodiment 2

[0030] A kind of production technology of vacuum aluminized composite film as described in embodiment one, comprises the following steps:

[0031] 1) Selection of base material: select PVC film with low light transmittance as the base material for corona treatment, and the light transmittance of the PVE film is 10-20%;

[0032] 2) Vacuum aluminizing: the PVC film is vacuum aluminized on a vacuum aluminizing machine to form an aluminized film. The vacuum aluminizing process is unwinding the substrate → vacuuming → heating the evaporation boat → sending aluminum wire → evaporation → cooling → Flattening → winding, the vacuum degree is 1.6×10-2Pa, the temperature of the evaporation boat is controlled at 1690°C, the purity of the aluminum wire is not less than 99.99%, the wire feeding speed is 2.3m / min, and the thickness of the aluminum coating layer is 380-400 angstroms , the winding speed is 710m / min;

[0033] 3) Apply a solvent-free adhesive to the aluminum surface of the alum...

Embodiment 3

[0037] A kind of production technology of vacuum aluminized composite film as described in embodiment one, comprises the following steps:

[0038] 1) Selection of base material: select PVC film with low light transmittance as the base material for corona treatment, and the light transmittance of the PVE film is 10-20%;

[0039]2) Vacuum aluminizing: the PVC film is vacuum aluminized on a vacuum aluminizing machine to form an aluminized film. The vacuum aluminizing process is unwinding the substrate → vacuuming → heating the evaporation boat → sending aluminum wire → evaporation → cooling → Flattening → winding, the vacuum degree is 1.7×10-2Pa, the temperature of the evaporation boat is controlled at 1630°C, the purity of the aluminum wire is not lower than 99.99%, the wire feeding speed is 2m / min, and the thickness of the aluminum coating layer is 380-400 angstroms. The winding speed is 730m / min;

[0040] 3) Apply a solvent-free adhesive to the aluminum surface of the alumini...

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Abstract

The invention discloses a production process of vacuum aluminum-plated composite films. The production process comprises the steps of selecting base materials, carrying out vacuum aluminum plating, coating an adhesive, compositing, rolling up, and carrying out aging treatment, so that a finished product vacuum aluminum-plated composite film is obtained. Compared with the prior art, a composite film prepared according to the invention has the following advantages and effects that experiments prove that a sub-gloss film produced according to the invention has a good aluminum-layer adhesion force, a strong tensile strength (210-301 MPa), good glossiness, and excellent oxygen and moisture permeable barrier properties, the solvent residue is less than or equal to 0.13, the sub-gloss film is environmentally friendly, smooth in surface, bright and clean, safe, sanitary, and easy to recover, the phenomena that the aluminum-layer adhesion force of a composite film prepared in the prior art is poor, aluminum powder is easily removed, and the glossiness of printed patterns is weak are overcome, products are widely used in the packaging industries for foods, cigarettes, gifts, cosmetics, medicines and the like, and the film is a basic raw material used in the printing composite industry.

Description

technical field [0001] The invention belongs to the technical field of packaging films, in particular to a method for preparing an aluminum-plated composite film. Background technique [0002] Aluminized composite film is a flexible packaging material with aluminum luster and good barrier properties formed by compounding aluminized film such as VMPET, VMBOPP, VMCPP or VMPE and transparent plastic film. It has good metallic luster, good Barrier performance, convenience, low price and other advantages, it is widely used in the outer packaging of food, health care products, medicine and cosmetics, especially in dry and puffed food. [0003] The prior art generally adopts the method of dry compounding to compound the aluminized film and the transparent plastic film to obtain the aluminized composite film. For example, the Chinese patent document with the application number 201410345056.0 discloses a preparation method of an environment-friendly aluminized composite film. Apply ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/06B32B37/12B32B38/00B32B15/085B32B15/20B65D65/40
CPCB32B15/085B32B15/20B32B37/06B32B37/12B32B38/00B32B2307/406B65D65/40
Inventor 吴勇进
Owner NANJING CHENXIANG IND & TRADE
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