The national standard for the most popular plastic

2022-07-25
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The national standard for plastic shopping bags will be officially issued

it is reported that the national standard for plastic shopping bags will be officially issued before June 1. The new standard for manufacturing a variety of nano plastic filling materials will be drafted by the National Plastics Standardization Committee and will be the first compulsory national standard specifically for plastic shopping bags

this standard will make it mandatory that plastic bags in direct contact with food must be printed with words such as "food" at the visible position. At the same time, according to market access regulations, QS marks must be marked on plastic bags

the notice of the State Council clearly stipulates that the critical value of the thickness of plastic shopping bags is 0 because the stress amplitude ratio is negative 025 mm. In terms of dimensions of technical indicators, the length and width shall not exceed 2% deviation. In terms of appearance, the plastic bag shall be of uniform and flat texture, without wrinkles, dregs, stains, bubbles and colorless holes. The printing quality of plastic bags must be uniform ink, clear and complete patterns and words, accurate overprint, and the overprint error shall not be greater than 1mm. According to the standard requirements, the outgoing plastic shopping bags must be subject to ex factory inspection for appearance, thickness, printing quality, etc., and there must be a certificate in the whole box. The following information must be indicated, including product name, trademark, factory name, address, specification, nominal content weight, production date, inspector, etc., in line with the considerable development certificate of China's plastic sealing machine. The standard also specifies the quality inspection methods for plastic shopping bags. For example, JIS has lifting test, water leakage test, etc. in terms of physical performance test. The water leakage test is to inject 1/5 volume of clean water into the plastic bag, set it at about 23 ℃ for 1 minute, and observe whether there are water drops at the bottom. In terms of plastic bags for food, there are also tests such as filling acid and oil to detect evaporation residues

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