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Anti-static polyester film and preparing method thereof

A polyester film and antistatic technology, applied in the field of antistatic polyester film and its preparation, can solve the problems of inconvenience, safety and hidden dangers, and achieve the effects of normal haze, high gloss and high light transmittance

Inactive Publication Date: 2015-09-16
福建百宏高新材料实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the disadvantages of polyester film winding and slitting, downstream processing, and product use in the prior art, which may cause inconvenience and safety hazards due to static electricity accumulation, and provides a method of using organometallic cations and silicon dioxide And other materials are used as antistatic and anti-blocking additives and special production technology is used to change the structure of BOPET polyester film, the total crystallization rate of the production process and the crystallinity of the final product, so that the molecular structure of the polyester surface layer changes to maintain the original An antistatic polyester film with antistatic effect on the basis of high gloss and high light transmittance physical properties and its preparation method

Method used

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  • Anti-static polyester film and preparing method thereof

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Embodiment 1

[0031] An antistatic polyester film, comprising an ABC three-layer structure, the B layer is the middle core layer, and the material is a super bright polyester chip; the A layer is an antistatic layer on the upper surface, and the material includes an antistatic and anti-blocking polyester Slices and super-bright polyester chips; layer C is the antistatic layer on the lower surface, and the materials include antistatic and anti-blocking polyester chips and super-bright polyester chips.

[0032] Layers A and C are the upper and lower surface antistatic layers, and the materials have the following components in mass percentage: 5-10% of antistatic and anti-adhesion polyester chips and 90%-95% of super-bright polyester chips. The titanium dioxide (TiO2) content of super-bright polyester chips is zero. The thickness of layer B accounts for 60%-80%, the thickness of layer A accounts for 10%-20%, and the thickness of layer C accounts for 10%-20%.

[0033] In the antistatic layer o...

Embodiment 2

[0043] A kind of preparation method of antistatic polyester film, the component composition by weight percentage:

[0044] The ratio of the raw materials of the auxiliary twin-screw extruder (A layer) is 90% super glossy polyester chips and 10% antistatic antistatic anti-blocking polyester chips by mass percentage, and the raw materials are sent into the extrusion after precise metering and mixing machine extrusion; the raw material ratio of the main extruder (B layer) is 100% super glossy polyester chips by mass percentage, and the raw materials are sent to the main extruder for extrusion after accurate measurement; the auxiliary twin-screw extruder ( The ratio of raw materials for layer C) is 90% super-bright polyester chips and 10% antistatic and anti-blocking polyester chips by mass percentage, and the raw materials are sent to the extruder for extrusion after accurate metering and mixing. The mass ratio of the material extruded by the main extruder and two auxiliary twin-...

Embodiment 3

[0047] The difference between this embodiment and embodiment 2 is: the mass ratio of the material extruded by the main extruder and two auxiliary twin-screw extruders is 15:70:15, and the antistatic and antisticking layer thickness of the 23um film A layer is 3.45um , C layer antistatic anti-adhesive layer thickness is 3.45um.

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Abstract

The invention relates to an anti-static polyester film and a preparing method thereof. The anti-static polyester film comprises a structure layer A, a structure layer B and a structure layer C. The layer B is a middle core layer and is made of a super bright polyester chip. The layer A is an upper surface layer anti-static layer and is made of an anti-static anti-blocking polyester chip and a super bright polyester chip. The layer C is a lower surface layer anti-static layer and is made of an anti-static anti-blocking polyester chip and a super bright polyester chip. Modified synthetic PET materials containing organic metal positive ions and silicon dioxide are selected as anti-static anti-blocking additives, a special production technology is used for changing the structure of a BOPET polyester film and the overall crystallization rate of a production process and the crystallinity of final products, accordingly, polyester molecular structures are changed, the effects of good glossiness, normal haze and static resistance are achieved, and meanwhile good opening performance is achieved.

Description

technical field [0001] The invention relates to a special packaging film manufacturing technology, which relates to an antistatic polyester film and a preparation method thereof. Background technique [0002] Biaxially oriented polyester film (English abbreviation: BOPET) is a high-insulation material, and its volume resistance is 10 to the 12th power. It is easy to generate and accumulate charges to form static electricity during processing and application, and cause various disadvantages, such as transparent packaging bags When the packaged goods are displayed and sold on the shelves, the transparency of the packaging will be reduced due to electrostatic dust cleaning, and the display effect of the goods will be reduced; when the packaging film is printed and processed, it will affect the printing quality and may even cause fire safety accidents due to the electrostatic discharge of the film . Antistatic film is often one of the basic conditions for the smooth operation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/40B32B27/36B32B37/04B32B27/18
Inventor 付双云彭齐飞梁涛张德忠
Owner 福建百宏高新材料实业有限公司
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