T/WS 0002-2021
Biaxially oriented polypropylene(BOPP) film for napkin packaging (English Version)

Standard No.

T/WS 0002-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

Group Standards of the People's Republic of China

Latest

T/WS 0002-2021

Scope

Physical and mechanical properties: Project requirements Tensile strength/MPa Longitudinal ≥130 Transverse ≥230 Nominal strain at break/% Longitudinal ≤180 Transverse ≤70 Thermal shrinkage rate/% Longitudinal ≤4.5 Transverse ≤3.5 Haze/% Thickness ≤30μm ≤2.0 Dynamic friction Coefficient treated surface ≤ 0.25 non-treated surface ≤ 0.25 wetting tension/mN/m treated surface ≥ 38 non-treated surface ≤ 32 heat sealing strength / N / 15mm treated surface ≥ 2.0 non-treated surface ≥ 2.2 gloss / % ≥ 80 moisture permeability Amount/[g/(㎡·24h·0.1mm)] ≤2.0 Note: The non-treated surface refers to the surface that has not been treated by corona, flame or plasma; the treated surface refers to the surface that has been treated by corona, flame or plasma.

T/WS 0002-2021 history

• 2021 T/WS 0002-2021 Biaxially oriented polypropylene(BOPP) film for napkin packaging