PE bag
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Polyethylene bag
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Substrate:polyethylene resin is blown or cast into film.
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Product features:
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Good softness:feel soft, with good toughness and ductility.
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Excellent impact and tear resistance:resistance to puncture, drop resistance, not easy to break, strong protection.
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Excellent heat sealing performance:is easy to heat seal, and the seal is firm and reliable.
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Good moisture resistance:is an excellent moisture-proof material.
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Good chemical stability:acid, alkali, salt and a variety of solvents.
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Non-toxic tasteless:meet the requirements of food and pharmaceutical packaging hygiene.
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Transparent to translucent:transparency is usually not as good as OPP, but high-definition PE bag transparency is also good. There are a variety of options such as milky white.
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Can be made of different thickness and strength:can be produced from ultra-thin cling film to very thick heavy packaging film.
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Is mainly divided into low density polyethylene bags and high density polyethylene bags.
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LDPE bag:is softer, transparent, and malleable (such as plastic wrap, lightweight shopping bags).
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HDPE bag:more rigid, high strength, wear resistance, good temperature resistance (such as supermarket vest bags, heavy packaging bags).
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Disadvantages:
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Transparency/gloss is not as good as OPP:appearance is relatively less "bright".
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Stiffness than OPP:is soft and easily deformed when stacked.
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General printability:the surface energy is low, corona treatment is usually required to print better, and the printing effect may not be as fine as OPP.
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Barrier:has poor barrier properties to oxygen and aroma (single layer PE).
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Practical application scenarios:
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Food packaging:largest application area. Fresh-keeping film, fresh-keeping bag, bread bag, frozen food bag, beverage outer packaging shrink film, rice bag, condiment bag, instant noodle inner bag, etc.
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Daily chemical supplies:laundry detergent, shampoo, shower gel soft packaging bag (often part of the composite structure), cosmetic outer bag.
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Supermarket shopping bags:LDPE and HDPE vest and flat pockets.
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Industrial packaging:parts packaging, protective film, bubble film outer bag, garbage bag, heavy packaging bag (fertilizer, feed, etc.).
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Clothing packaging:for packaging that requires better protection or thicker items (such as down jackets, inner bags for sweaters or thicker courier bags).
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Pharmaceutical packaging:the outer packaging or inner lining of some drugs and medical devices (to meet the medical requirements).
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Agriculture:plastic film, greenhouse film, agricultural products packaging.
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