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PVC packaging tape manufacturers judge their quality tips and production specifications

by:Kint      2020-01-18
PVC packaging tape> PVC packaging tape is very common in our life, but there are also many tapes on the market. How should we judge whether it is good or bad, the following is a brief introduction from Guangzhou ruidetai Electrical Equipment Co. , Ltd. How to judge good or bad! First of all, you can smell the taste of the packaging tape. If the taste is very strong and there is a sour smell, it means that the retention of this tape is very poor, especially in a low temperature environment, basically sticking to the carton will crack. Then, you can also see the brightness of the film, the general inferior tape color is dark. Thirdly, you can also look at the color of the adhesive tape. Generally, the whiter the appearance color of the transparent adhesive tape is, the less impurities in the adhesive tape are, so as to ensure normal adhesiveness. The specification of packaging tape is expressed by 'width × length × thickness', of which 'width' is the width of the tape, generally expressed by mm or cm, generally ≥10mm, as early as before 1980s, common specifications are: 72mm, 60mm, 50mm, 30mm, etc; Now, it has gradually changed to: 60mm, 48mm, 45mm, 40mm, 30mm, etc; 'Long' is the total length after the tape is pulled apart, generally expressed as 'm' or 'code (1 Code = 0. 9144 m) , Common lengths are 50 m, 100 m, 150 m, 200 m, 500 m, etc; The thickness refers to the total thickness of the BOPP original film layer (Unit: Micron, μm), Commonly used 45 ~ 55 μ m. For example, '100 × m × 50μm', the calculation method of unit price of each roll of adhesive tape: the adhesive tape industry usually uses 'yuan/square meter' to calculate the price of adhesive tape, then 'price per roll of tape = width (m)* Length (m)* Square price'
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