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PET aluminum-plated base membrane and preparation method thereof

A base film, aluminized technology, applied in chemical instruments and methods, flat products, other household appliances, etc., can solve the problems affecting the performance of aluminized film, insufficient gloss, low light transmittance and surface tension, etc. The effect of high layer adhesion, uniform coating and excellent surface tension

Inactive Publication Date: 2017-02-22
江苏三房巷薄膜股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing aluminized films are all formed by aluminizing on the basis of PET aluminized base film. The light transmittance and surface tension of the existing PET aluminized base film are low, and the gloss is not enough. Affect the performance of the aluminum coating

Method used

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  • PET aluminum-plated base membrane and preparation method thereof
  • PET aluminum-plated base membrane and preparation method thereof
  • PET aluminum-plated base membrane and preparation method thereof

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Embodiment Construction

[0031] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0032] Such as Figure 1-Figure 4 As shown, a PET aluminized base film includes a core layer 2 positioned in the middle and surface layers 17 arranged on both surfaces of the core layer 2, and the surface layer 17 and the core layer 2 are integrally formed by co-extrusion and biaxial stretching. The core layer 2 is a PET layer, and the surface layer 17 is a PET layer mixed with an anti-blocking agent.

[0033] The weight ratio of the raw material components of the surface layer 17 and the core layer 2 is: surface layer 17: 80% to 90% of polyester melt for film, 10% to 20% of anti-blocking agent masterbatch; core layer 2: polyester melt for film Body 100%;...

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Abstract

The invention discloses a PET aluminum-plated base membrane and a preparation method thereof. The PET aluminum-plated base membrane comprises a core layer in the middle and surface layers arranged on the two surfaces of the core layer. The surface layers and the core layer are integrally formed through co-extrusion and two-way stretching. The core layer is a PET layer, and the surface layers are PET layers mixed with anti-adhesion agents. The preparation method includes the steps of polyester synthesis, mixing, co-extrusion, sheet casting through a die, longitudinal stretching, transverse stretching, traction and trimming, corona treatment, coiling, cutting and obtaining of a finished product. The PET aluminum-plated base membrane can be prepared through the preparation method, and has excellent light transmittance and surface tension. The light transmittance can reach 89%, the glossiness is 130, the surface tension can reach 58 dyne, and the light transmittance, the glossiness and the surface tension can keep for a long time and do not weaken. Aluminum-plated membranes meeting different packaging requirements can be produced, and the produced aluminum-plated membranes are uniform and high in aluminum layer bonding force.

Description

technical field [0001] The invention relates to a PET aluminized base film and a preparation method thereof. Background technique [0002] As we all know, the function of aluminum plating on the surface of PET base film is to shading and prevent ultraviolet radiation, which not only prolongs the shelf life of the content, but also improves the brightness of the film. Therefore, aluminized film is widely used in composite packaging, mainly used in food packaging, high-end cigarette industrial packaging, composite, printing, self-adhesive labels, etc. It is suitable for all kinds of high-end tobacco and alcohol packaging, gift boxes and other gold and silver cardboard, etc. It can be used for packaging and trademarks of milk powder, tea, medicine, food, etc., and laser anti-counterfeiting materials. Existing aluminized films are all formed by aluminizing on the basis of PET aluminized base film. The light transmittance and surface tension of the existing PET aluminized base f...

Claims

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Application Information

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IPC IPC(8): B32B27/36B29D7/01B29K67/00
CPCB32B27/36B29D7/01B29K2067/003B32B2307/40
Inventor 薛超沈陈斌赵佰金
Owner 江苏三房巷薄膜股份有限公司
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