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Antistatic coating solution composition and antistatic polyester film using same

A composition and antistatic technology, applied in the direction of conductive coatings, coatings, circuits, etc., can solve the problems of coating solution stability, coating solution aggregation, polyester film cannot be applied to optical applications, and it is difficult to apply high-speed production, etc., to achieve Stable antistatic performance, good appearance quality, not easy to deteriorate

Active Publication Date: 2021-11-16
TORAY ADVANCED MATERIALS KOREA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the coating disclosed in Korean Laid-Open Patent Publication No. 2006-0078766 may generally cause appearance defects such as deterioration of transparency, whitening, etc., and therefore, there is a disadvantage in that a polyester film provided with such a coating cannot be applied For optical applications, and the decrease in the stability of the coating solution over time may lead to aggregation of the coating solution, which in turn makes it difficult to apply to high-speed production

Method used

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  • Antistatic coating solution composition and antistatic polyester film using same
  • Antistatic coating solution composition and antistatic polyester film using same
  • Antistatic coating solution composition and antistatic polyester film using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0114] Step 1: Manufacture of uniaxially stretched polyester film

[0115] Polyethylene terephthalate pellets having an intrinsic viscosity of 0.625 dl / g and containing 0.02% by weight of amorphous spherical silica particles having an average particle size of 1.5 μm were thoroughly dried at 160° C. using a vacuum dryer 7 hours, then melted, and passed through an extrusion T-die in intimate contact with a cooling drum by an electrostatic application method to produce an amorphous unstretched sheet, which was reheated, and stretched at 95 °C in the direction of film advancement 3.5 times to produce a uniaxially stretched polyester film. Thereafter, corona discharge treatment was performed on the face of the film to be coated, thereby producing a polyester film.

[0116] Step 2: Fabrication of Biaxially Stretched Polyester Film

[0117] On the surface that has been corona-treated, an antistatic coating solution with a solids content of 4% by weight based on the total coatin...

Embodiment approach 2

[0120]A biaxially stretched antistatic polyester film was produced in the same manner as in Embodiment 1, except that Coating Solution A, Coating Solution B, Coating Solution C, and Coating Solution E were Coating Solution A / The solid content weight ratio of coating solution B / coating solution C / coating solution E=20 / 55 / 20 / 5 was mixed.

Embodiment approach 3

[0122] A biaxially stretched antistatic polyester film was produced in the same manner as in Embodiment 1, except that Coating Solution A, Coating Solution B, Coating Solution C, and Coating Solution E were Coating Solution A / The solid content weight ratio of coating solution B / coating solution C / coating solution E=15 / 70 / 10 / 5 was mixed.

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Abstract

The present invention relates to: an antistatic coating solution composition comprising a modified conductive compound having excellent antistatic properties, a crosslinking agent, an adhesive, and a dispersibility enhancer; and having A coated antistatic polyester film obtained by coating said antistatic coating solution composition on at least one surface of a polyester film, and relates to: having good appearance quality, very excellent transparency and smoothness, An antistatic coating solution composition having stable antistatic properties even at low humidity; and including a coating that is not easily deteriorated over time, thereby capable of preventing adsorption of surrounding dust and effectively preventing generation of static electricity; and using Its antistatic polyester film.

Description

technical field [0001] The present invention relates to an antistatic coating solution composition and an antistatic polyester film using the same, and more particularly, to an antistatic coating solution composition capable of effectively preventing the adsorption of surrounding dust and generation of static electricity and an antistatic polyester film using the same. Electrostatic polyester film. Background technique [0002] Generally, since polymer films are excellent in mechanical strength, dimensional stability, heat resistance, transparency and chemical resistance, they are widely used in various industrial fields such as photography, drawing, overhead projector (OHP), electrical and electronic components, general industrial and packaging applications. [0003] However, although the physical characteristics of the polymer film are excellent, the specific resistance of the film surface is very high, so there is a problem that the film surface is easily charged when fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/24H01B1/10H01B1/12C09D7/63C09D7/45G02B1/16C08J7/044C08J7/043
CPCC09D5/24C09D7/63C09D7/45G02B1/16H01B1/10H01B1/12C08J7/043C08J7/044H01B1/127C08J2367/00C08K5/42C09D7/65C08L65/00C09D7/40C09D201/02C08K5/053C08J5/18C08J2400/10
Inventor 崔太奎朴志成金吉中文基祯
Owner TORAY ADVANCED MATERIALS KOREA