BOPP film has good chemical stability, and it is insoluble in other solvents except strong acid. Its characteristics are as follows: 1. BOPP has good rigidity, toughness, transparency and gloss. The characteristics of the CPP film are as follows: 1. CPP film has excellent moisture and moisture resistance, and has certain oxygen resistance and oil resistance; 5.
Its main features are: low price, soft, good extension, environmental protection and pollution-free Disadvantages: poor weather resistance, this material is not suitable for use at high temperatures, generally within 60 degrees. Because of its low melting point, it requires lower energy to convert from one form to other.
Reprocessed granules of BOPP resin are widely used to manufacture injection molded parts, household items like sitting mats, chair, table, automobile spares etc. Half tone printing jobs with multi colour printing are also carried out with ease on this film for high quality graphics.
In white opaque film variant, excellent gloss, high opacity and superb whiteness provides an attractive look to product packaging. Metalized film variety gives superior metallic appearance to stand out your product on the shelf. Because of good surface tension, post lamination operations like foil stamping, UV spot coating and embossing could be carried out to enhance aesthetic look of product packaging. Density : It is a unique property that BOPP films has among all other commonly used flexible packaging films.
Low density results into more yield during conversion and thus supports less plastic consumption concept per product. Low density results into less weight per roll for the same length of other plastic film which provides ease of material handling. These films demonstrate high barrier against oxygen and water vapour and find extensive use in manufacturing packaging material for products that require extended shelf life, apart from host of applications in the textile and capacitor industries.
Second, the print quality and ecological print options available with BOPP films are exceptional. Brands look better, colours brighter, promotions stronger, and packs punchier. The reverse printing of laminated films provides better-protected prints, resulting in packs looking every inch as immaculate as they did when they left the factory or packing plant.
Third, its exceptional value. BOPP films are economical and are forgiving on packing lines. A transparent outer polypropylene layer is reverse printed and laminated to a metallised layer. The clear layer delivers a high-gloss and beautifully presented pack design, with the metallised layer adding barrier qualities to keep food fresher for longer. The metallic finish also adds another attractive effect to the presentation.
An alternative style of plastic pack that feels more organic due to its softer, tactile finish. They are also becoming commonly associated with higher-cost, bigger brand options. When it comes to powdered products like cake and bread mixes, a clear outer polypropylene layer can be reverse printed and laminated with an inner polyethylene layer.
The polypropylene provides a striking finish, yet on the inside, the polyethylene offers superb seal strength to completely contain those fine powders.
Often used to wrap perfume or boxes of chocolates, box wrapping gives a neat, tight pack using envelope sealed ends. Using different coatings can stop finger marking on frequently handled packs and offer an aroma barrier.
Plastic has taken a hard hit from environmentalists and ecologists over the past decade. Admittedly, plastics have played their part in landfill issues, the floating islands of plastic waste and fishing equipment contaminating our oceans. More plastics than ever are recyclable, and the plastic packaging industry is working hard to introduce new solutions to problems at every point of the process.
It is an excellent alternative to cellophane, waxed paper, and aluminum foil. The orientation increases tensile strength and stiffness, lowers elongation harder to stretch , and improves the optical properties, and somewhat improves vapor barrier properties. In general, BOPP has higher tensile strength, higher modulus stiffness , lower elongation, better gas barrier, and lower haze than CPP.
PP film is used for many common packaging applications such as cigarette, candy, snack and food wraps. It also can be used for shrink wrap, tape liners, diapers and sterile wrap used in medical applications.
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