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Recyclable Bag Material:
Generally, recyclable packaging bags made of a single material, such as PE composite PE film, reprocess the discarded packaging bags into plastic particles for the manufacture of other plastic products, thereby reducing the dependence on non-renewable resources such as oil, and some say that this reduces the demand for raw resources. Is that so? I don't think so, the so-called recyclable packaging bag is made of more than two layers of materials, in the process of making a composite packaging bag, the ink layer must be printed, and the composite should be made with glue, so that it can be completed, and this is not a single recyclable material.
The main components of the ink:
Pigments, binders, additives, desiccant, thinners, defoamers, calcium carbonate, talc, kaolin, etc
Main ingredients of glue:
The main components of polyurethane glue include: isocyanate, polyol, solvent, catalyst:
Fillers, including nano calcium carbonate, heavy calcium, carbon black, silicon dioxide, plasticizers, coupling agents, water scavengers, etc
The above excipients are oily and volatile series, which will produce a large amount of exhaust emissions during the production process.
Biodegradable Bag Material:
Generally, cost-effective material paper composite degradable film is used, but from the cost point of view, the cost of some degradable film is close to the price of ordinary plastic film, which is a bit of natural degradation, no need to increase the cost of artificial degradation again, degradable packaging bags can be naturally decomposed under specific environmental conditions (such as microbial action, certain temperature and humidity, etc.), and finally converted into water, carbon dioxide and biomass and other environmentally harmless substances, will not be as long-term residue as traditional plastic packaging bags, thereby reducing the risk of long-term pollution to the environment. For example, biodegradable plastic bags can decompose relatively quickly under composting conditions.
- Reduce environmental hazards: Degradable packaging bags will not release toxic substances that may cause harm to the environment and biology like traditional plastic packaging bags during their degradation process, such as harmful substances such as plasticizers that may be slowly released by some traditional plastics in the natural environment, and degradable packaging bags are relatively safer.
Our degradable packaging bags are water-based ink printing, the main components of which are water-soluble resins and pigments, and the composite process is water-based environmentally friendly glue, which is odorless, non-toxic and has no exhaust emissions.
Both recyclable and biodegradable bags have their own environmental advantages and limitations. In the long run, degradable materials play an important role in protecting the environment, on the other hand, it is necessary to further develop and improve the technology of degradable packaging bags to reduce their costs and potential impact on the environment, and it is also necessary to strengthen environmental protection education for the public, improve people's awareness of environmental protection and the correct understanding and use of degradable products. In practical applications, degradable packaging bags can be selected and used according to specific situations, such as the use scenarios of packaging bags, in order to achieve better environmental protection effects.