Water-Type Primer Composition, Polarizing Plate Including The Same And Manufacturing Method Of Optical Film Comprising Primer Layer
A technology of polarizing plates and primers, applied in the direction of nonlinear optics, chemical instruments and methods, coatings, etc., which can solve problems such as corrosion and damage to the working environment
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Embodiment 1
[0093] A primer-treated acrylic film was prepared as follows: A 10 wt % primer composition was prepared by mixing 33.3 g of CK-PUD-F (Chokwang-polyurethane dispersion: aqueous solution with 30% solids), 1.4 g Colloidal silica (with 20% solids in water) and 65.3 g of pure water; use a #3 rod to coat the primer composition onto a corona-treated acrylic film to a thickness of about 300 nm; and at 100° C. Leave the acrylic film under dry for five minutes.
[0094] As the acrylic film, an AX film product (manufactured by Nippon Shokubai) having a thickness of 50 μm was used, and the acrylic film was heated at 50 W / m 2 / min under the conditions of corona treatment to prepare corona-treated acrylic film. A polarizing plate was prepared according to the following procedure. Apply PVA adhesive to both sides of the polarizer. A primer-treated acrylic film was on one side of the polarizer, and an alkali-treated TAC film was on the other side of the polarizer. Then, the primer-treated...
Embodiment 2
[0096] The primer composition except 10wt% is obtained by mixing 33.3g of CK-PUD-F (Chokwang-polyurethane dispersion: an aqueous solution with a 30% solid content), 1.4 g of colloidal silica (aqueous solution with a 20% solid content) ) and 65.3 g of pure water; and using a #5 rod to coat the primer composition onto a corona-treated acrylic film to a thickness of about 500 nm, a polarizing plate was prepared in the same manner as in Example 1.
Embodiment 3
[0098]The primer composition except 10wt% is obtained by mixing 33.3g of SUPERFLEX210 (NipponShokubai-polyurethane dispersion: an aqueous solution with a 30% solid content), 1.4g of colloidal silicon dioxide (aqueous solution with a 20% solid content) and 65.3g and using a #5 rod to coat the primer composition onto a corona-treated acrylic film to a thickness other than about 500 nm, and prepare a polarizing plate in the same manner as in Example 1.
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