T/CPPIA 34-2024 Active Group standards

T/CPPIA 34-2024 PhotoreSIST film made from polyester base membrane

Publish Date: 2024-01-25 Implement Date: 2024-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CPPIA 34-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Plastic profiles

ICS Name: Films and sheets

Publish Date: 2024-01-25

Implement Date: 2024-02-01

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 photoresist dry films (hereinafter referred to as "base films"). Applicable to the production, inspection, and sales of polyester films used in photoresist dry films, which are made by melting and extruding, and biaxially stretching polyethylene terephthalate resin as the main raw material, with the addition of an appropriate amount of masterbatch. Main technical contents: 4. Requirements 4.1 Appearance 4.1.1 The film roll should be neatly rolled with consistent tightness, without joints, edge overruns, wrinkled folds, scratches, cut edges with burrs, oil stains, or any defects that affect its applicability. 4.1.2 Surface defects The surface defects should comply with the requirements in Table 1. 4.2 Dimensions and deviations 4.2.1 Thickness deviation The nominal thickness of the product generally ranges from 15 μm to 23 μm, and the thickness deviation should comply with the requirements in Table 2. 4.2.2 Width and length deviations They should comply with the requirements in Table 3. 4.3 Physical properties They should comply with the requirements in Table 4.