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