BOPP Films
BOPP Films
BOPP FILMS
Bopp is a bi-axially oriented polypropylene film designed for flexible packaging and label applications. OPP, oriented polypropylene, is a flexible material derived from melting and orienting a polymer called polypropylene. This raw material, an oil by-product, is inert and unaffected by most chemical agents occurring in daily life. Biaxially oriented means that the polypropylene film is stretched in both the machine direction and across machine direction.
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Features
The main feature of BOPP films are improved stiffness, high tensile strength, excellent optics and good water barrier properties. They range from 15 to 50 microns and are most commonly 15 to 30 microns. These films can be monolayer or coextuded structures, and transparent, opaque, or metallized. They also have the advantage of being non-toxic and fully recyclable.
BOPP films are printed out of new printing technology, Indigo Omnius. They provide excellent UV light protection, humidity, aroma and light barriers. They have superior strength at low gauges, flatness, clarity and excellent printability. They can be treated with acrylic and PVDC PVDC coatings for better sealability and barrier properties. The films use mainly homopolymer PP and random copolymer PP.
Applications: BOPP films and packaging
BOPP films are ideal for twist-wrap applications and in laminations for use on vertical and horizontal machines. They can also be used for decorative purposes. They are used in an a almost limitless array of flexible packaging applications, pressure sensitive tapes, labels, stationery, metallizing, consumer products and a wide variety of packaging uses.
They are widely used for gift and flower wrapping, paper lamination, textile packaging, release film for melamine plates and plate film packaging. Also used as the anti-counterfeit covering film on the packaging cases. Various packaging products like packaging pouches, packaging bags, electronic packaging, industrial packaging are produced by BOPP films. In fact aluminum foils and aluminum sheets have good combinations of BOPP films to produce efficient packaging materials.
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Advantages and Applications of 10μm and 12μm BOPP films
BOPP biaxially oriented polypropylene film, known as the packaging queen in the plastic film industry, is a very important flexible packaging material. BOPP film is colorless, odorless, tasteless and non-toxic. It has high tensile strength, impact strength, rigidity, toughness and good transparency. It is widely used in the packaging of food, clothes, cigarettes and books.
BOPP thin glossy film and matte film, thickness such as 10μm, 12μm, are generally used for copying books, that is, compounding with paper, such as book covers, wine boxes, cosmetic boxes, food packaging boxes, etc., For the purpose of ink printing patterns, waterproof and moisture-proof, and improving aesthetics, the glossy film can have the effect of brightening and high gloss, and the matting film can make the paper and ink patterns present a matte and translucent high-grade texture. The specific processing process is that BOPP book-recovering film is first coated with polymer hot melt adhesive to obtain BOPP pre-coated film, and then hot-pressed and laminated with printed paper.
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With the development trend of lightweight and thinner packaging materials, customers continue to put forward the development requirements of ultra-thin BOPP film. Under the premise of achieving the same packaging protection performance, the thinner film of the same weight of BOPP film can achieve a larger square meter, bringing cost-saving advantages to customers.
In addition, in the production process of BOPP film, the amount of production raw materials will decrease with the decrease of film thickness, so the thinner BOPP film has more obvious advantages in environmental protection, raw material cost and production energy cost. Therefore, the thickness of BOPP film has an important impact on its application prospects. With the continuous development of technology and the improvement of manufacturing process, we have seen many performance advantages brought about by thinner and lighter film thickness, which also provides a wider application field.
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