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Manufacturing requirements for PE plastic bags
Publication Time:
2021-01-19 14:26
Plastic packaging bags are made from plastic and are used to package various items in daily life. They are widely used in daily life and industrial production, but this convenience has brought about serious pollution. Commonly used PE plastic bags Made from non-toxic polyethylene film, they can be used to hold food.
PE plastic bags They can completely isolate air and light, are safe and sanitary, biodegradable and recyclable, highly flexible, tear-resistant, and have good printing results. They allow for multicolor and multi-graphic printing to achieve a refined, compact effect, and are easy to carry and use.
PE plastic bags have many packaging advantages: they are lightweight, have low production costs, are chemically stable, do not deform at room temperature, do not produce odors, have good airtightness, effectively prevent light and moisture, maintain freshness, and extend the shelf life of products. They play an important role in food circulation and sales. The following describes the manufacturing requirements for plastic packaging bags:
1. PE plastic bags The appearance must be free of bubbles, punctures, water lines, poor plasticization, etc. These problems make them inconvenient to use. The deviations in width, length, and thickness specifications should be within the specified tolerance range.
2. In the manufacturing process of plastic packaging bags, physical and mechanical properties include tensile strength and elongation at break, which reflect the product's ability to withstand tension during use. If the item is substandard, the plastic packaging bag (film) is easily damaged during use.
3. PE plastic bags According to the degradation type of the product, degradability can be divided into photodegradable, biodegradable, and environmentally degradable. Degradation performance reflects the product's ability to be accepted by the environment after use and disposal. If the degradation performance is good, under the combined action of light and microorganisms, the plastic packaging bag will crack, disintegrate, and degrade into fragments. The natural environment can accept it; if the degradation is poor, the environment will not be able to accept it, thus forming "white pollution".
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