Fully Biodegradable Bag Material Standard
Biodegradable resin is used as the main raw material to produce biodegradable bags. According to whether contact with food, the film bags produced can be divided into direct contact with food and biodegradable plastic film bags. So who knows what is the material standard of fully biodegradable bags?
Plastic shopping bags made from a variety of degradable resins, processed by bag-making processes such as heat lamination or bonding, which may come or be expected to come into contact with food or food additives under normal conditions of use, or whose components may be transferred to food.
The need for biodegradable plastic bags:
Standard number, specification, nominal weight, material and composition, manufacturer, environmental protection statement, safety statement.
2, thickness and size deviation.
Because the current specifications of biodegradable plastic shopping bags in the market according to the need for different specifications, the thickness, width and length of biodegradable plastic shopping bags are specified.
Fully biodegradable material standards
3, sensory requirements.
In order to ensure direct contact with food biodegradable shopping bags used to ensure safety and eliminate the direct use of plastic re-cycling, so the standard stipulates that direct contact with food biodegradable plastic shopping bags should generally be the original color of resin, of course, other colors can be decided by the supply and demand sides.
4, physical and mechanical performance requirements.
Lifting method and sealing strength is mainly simulated consumers in real life to buy goods and use plastic shopping bags for packaging, while lifting the bag in the process of bag does not break or leak requirements. According to the requirements of traditional plastic shopping bags, lifting test, sealing strength.
To ensure that the impact resistance when holding items, this standard specifies the impact performance of the bumper, because the current superstore generally according to the size of the shopping bag provisions load-bearing, using a similar thickness of the bag film, and test dart impact, are cut about 200mm × 200mm size of a single layer of bag film, in the falling dart impact test machine, by different quality darts from a certain height of free fall, the bag film impact test to Determine the dart impact strength. The impact strength of falling darts has a great correlation with the thickness of the bag, and the correlation with the rated weight is very small. For this reason, this standard specifies the corresponding impact resistance requirements according to the different range of bag film thickness.