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What is degradable plastic? How can we tell whether we use degradable plastic products in our daily life? Recently, the China National Light Industry Federation issued the "Guidelines for the Classification and Labeling of Degradable Plastic Products" (trial)
.
Since degradable plastics have different degradation behaviors in soil, compost, ocean, fresh water (rivers, rivers, lakes) and other environments, according to different environmental conditions, degradable plastics are divided into: soil degradable plastics, compostable degradation (Including traditional compost and yard compostable) plastics, marine environment degradable plastics, freshwater environment degradable plastics, sludge anaerobic digestion degradable plastics, high solid anaerobic digestion degradable plastics
.
Heavy metal and specific element content
That is to say, full biodegradation is not equivalent to 100% degradation
.
That is to say, full biodegradation is not equivalent to 100% degradation
.
At present, there are generally two sources of biodegradable plastics, one is bio-based, such as directly derived from biomass, such as potato and corn starch mixture; but some are also derived from fossil-based materials
.
So, how to tell whether the products used are degradable plastics? This requires degradable plastic to mark the horse! Degradable plastic signs are divided into text signs and graphic signs
.
Degradable plastic graphic sign
The appropriate size of the logo should be determined according to the size of the product.
If the logo needs to be reduced or enlarged, the proportion given by the logo should be complied with
.
The appropriate size of the logo should be determined according to the size of the product.
The logo should be marked on the product body, such as the bottom, outside and other obvious parts; if it cannot be marked on the obvious part due to the influence of function and appearance design, it should be marked on the outer packaging of the product
.
The logo color is mainly green color (R73 G106 B1) given by the guide; when the product is inconvenient to use the guide color, you can choose the appropriate color (mainly black and white) according to the product, or the product's natural color
.
Marking of the logo may be by molding, printing, embossing, branding, or other methods of marking that are legible and indelible
.
The marking should be clearly visible, not easily worn, and should not impair the performance of the product
.
