What is the difference between a degradable packaging bag and a fully degradable packaging bag
Degradable packaging bags mean that they can be degraded, but degradable packaging bags are divided into two types: "degradable" and "fully degradable". Degradable packaging bag refers to adding a certain amount of additives (such as starch, modified starch or other cellulose, photosensitizers, biodegradants, etc.) during the production process to reduce its stability, and then it is easier to be in the natural environment Degradable plastic packaging bags. Fully degradable packaging bag means that the plastic packaging bag is completely degraded into water and carbon dioxide. The main source of this fully degradable material is processed from corn and cassava into lactic acid, which is PLA.
Polylactic acid (PLA) is a new type of biological substrate and renewable biodegradable material. Starch raw materials are saccharified to obtain glucose, which is then fermented by glucose and certain strains to produce high-purity lactic acid, which is then synthesized by chemical synthesis methods. Molecular weight of polylactic acid. It has good biodegradability. After use, it can be completely degraded by microorganisms in nature under specific conditions, and finally carbon dioxide and water are generated without polluting the environment. This is very beneficial to environmental protection and is an environmentally friendly material for workers.
At present, the main bio-based material of the fully degradable packaging bag is composed of PLA+PBAT, which can be completely decomposed into water and carbon dioxide in 3-6 months under the condition of composting (60-70 degrees), which does not pollute the environment. Why add PBAT? Professional flexible packaging manufacturer tells the interpretation here that PBAT is a copolymer of adipic acid, 1,4-butanediol, and terephthalic acid. It is a chemically synthesized fat that can be excessively biodegradable. Group-aromatic polymer, PBAT has excellent flexibility and can be used for film extrusion, blowing processing, extrusion coating and other molding processing. The purpose of blending PLA and PBAT is to improve PLA's toughness, biodegradation and molding processing properties. PLA and PBAT are incompatible, so choosing a suitable compatibilizer can significantly improve the performance of PLA.
We offer patented full biodegradable film and PVA bag, all products are made by casting equipment, It is different from traditional blow molding products, all blow molding products are non full biodegradable. We can produce pva films and bags in full transparent and various colors. and the PVA film is more smooth than the traditional blow molding products.
We also offer organic material full biodegradable film and bags with patented raw material and production Process.
For more PVA film and bags products please visit us:
http://www.joyful-printing.net/pva-bag/
http://www.joyful-printing.com/pva-bag/