Product Properties :
Granules are in light yellow, with slight starch fragrance, easily absorb
moisture and easily decomposed by microbes within 90 days, anti-static,
easily colored. Granules come in cylinder or round shape. The processing
temperature is lower than that of conventional plastic. Such granules can
be directly processed into finish products without adding any other
polyolefin materials like PE, PP, PS, PVC, etc.
Compostable packaging film.
Compostable bags, including shopping bags, garbage bags, pet waste bags,
electronic products packing bags, etc.
Machines, like common film blowing machine, sheet extruder, bag making
machine, printers, heat seal machine, etc, can be used to process bio-products.
The resin is especially suitable for downward blowing and water-cooling
Using film extruder with a screw of L/D ratio≥28︰1,
and the blow-up ratio should be more than 1：3,
which will help to achieve maximum production yield and best film quality.
The freshly blown film feels brittle and crisp. Its elongation is fairly
low. This is due to the severe dehydration during production. After a 24
hour curing period, it will regain its properties of tensile strength and
elongation. Therefore, newly made film needs 24 hours of curing period
before further processing like printing or bag-making.
Due to the
high starch content, the resin easily absorbs moisture. It needs to be
stored in a dry environment, and the packaging should be sealed properly
to prevent moisture.
In case the
resin is damp, it should be dried for 2 hours at 80ºC. During processing,
the temperature is correct when the corn starch fragrance can be smelled
at the hopper. It can be decomposed into soil friendly substances under a
microbial environment within 90 days.