Biodegradable bags manufacturer
Biodegradable shopping bag manufacturers suggest that according to the definition of “biodegradable plastic shopping bag” national standard GB/T 38082-2019, biodegradable plastic shopping bag refers to the biodegradable resin as the main raw material, with a carrying structure, in sales, service and other places used to hold and carry goods bag products.
Thickness and size deviation：
Because of the different needs of biodegradable plastic shopping bags, size and dimensions are not the same, the national standard GB/T 38082-2019 does not make specific specification requirements, but provides for its thickness, width and length of the size deviation. Thickness of biodegradable plastic shopping bags should be not less than 0.015 mm, thickness, width, length deviation should be in line with the provisions of the following three tables.
National standard GB/T 38082-2019 on the biodegradable plastic shopping bags color, odor and appearance and printing quality is also provided.
Food direct contact with biodegradable plastic shopping bags in order to ensure safety and eliminate the use of recycled plastic for direct contact with food, so the standard stipulates that direct contact with food biodegradable plastic shopping bags should generally be resin color or white, of course, other colors can be determined by the supply and demand sides.
Non-food direct contact with biodegradable plastic shopping bags color by the two sides to determine the supply and demand. In addition, biodegradable plastic shopping bags can not have a distinct smell.
Appearance, the bag film should be uniform, flat, there should be no bubbles, perforations (excluding the design of air permeability), poor plasticization, fisheye stiff blocks, filaments, hanging material lines, wrinkles (excluding folds caused by normal folding such as folds) and other apparent defects that hinder the make.
For the requirements of printing, its printing ink should be uniform, and the pattern and text should be clear and complete. The glass rate of printing should be less than 20%.