T/CPPIA 32-2024 Optical Adhesive (OCA) Release Film with Polyester Base Membrane

Scope

Scope: This document specifies the terms and definitions, requirements, test methods, inspection rules, marking, packaging, transportation, and storage for polyester-based films used in optical adhesives (OCA) release films. This document applies to the production, inspection, and sales of polyester-based films used in optical adhesives (OCA) release films, which are made from polyethylene terephthalate resin (hereinafter referred to as polyester) as the main raw material, with appropriate masterbatches added, and manufactured through melt extrusion and biaxial stretching processes. Main technical contents: 4. Requirements 4.1 Appearance quality 4.1.1 The film rolls shall not have defects such as dead folds, bulging, mechanical damage, and oil stains. Defects such as crystal points, scratches, and foreign objects on the film surface shall comply with the provisions of Table 1. 4.1.2 The film rolls shall be neatly wound, have a smooth appearance, and consistent tension. There shall be no obvious warping edges, no obvious longitudinal stripes, and no obvious star-shaped folds at the ends. The unevenness at the ends shall be ≤3mm. 4.2 Dimensions and tolerances 4.2.1 Length and width tolerances. The requirements for length and width tolerances shall comply with the provisions of Table 2. 4.2.2 Thickness tolerances. The requirements for thickness tolerances shall comply with the provisions of Table 3. 4.3 Physical performance indicators The physical performance shall comply with the provisions of Table 4.

Development Information

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