Back Side Seal Cassava Chips Packaging Bags
150*230mm for 40g
Material：PET/VMPET/CPP.
If u want filling nitrogen,the inner material must use CPP.
CPP film[1] is cast polypropylene film, also known as unstretched polypropylene film. It can be divided into general CPP (General CPP, referred to as GCPP) film, aluminized grade CPP (Metalize CPP, referred to as MCPP) according to different uses. ) film and cooking grade CPP (Retort CPP, RCPP for short) film, etc.
CPP is a polypropylene (PP) film produced by a cast extrusion process in the plastics industry. This type of film is different from BOPP (bidirectional polypropylene) film and is a non-oriented film. Strictly speaking, CPP films only have some orientation in the machine direction (MD) direction, mainly due to the nature of the process. Excellent clarity and finish on the film by rapid cooling on chill rolls.
The use of CPP film
CPP film is printed and bagged, suitable for:
1. (Composite film) Garment, knitwear and flower packaging bags; documents and photo album films; food packaging.
2. (Aluminized film) Metallized film for barrier packaging and decoration. After vacuum aluminum plating, it can be combined with BOPP, BOPA and other substrates to be used for high-grade packaging of tea, fried crispy food, biscuits, etc.
3. (Cooking film) CPP has excellent heat resistance. Since the softening point of PP is about 140°C, this type of film can be used in hot filling, retort pouches, aseptic packaging and other fields. In addition, it has excellent acid resistance, alkali resistance and grease resistance, making it the preferred material in the fields of bread product packaging or laminate materials. It is safe in contact with food, has excellent demonstration performance, does not affect the flavor of the food inside, and can choose different grades of resin to obtain the required characteristics.
4. (Functional film, also called special film) potential uses include: food packaging, candy packaging (twisted conjunctival film), medicine packaging (infusion bags), replacing PVC in photo albums, folders and documents, synthetic paper, Sticker tape, business card holder, ring folder and stand-up bag composite.
5. The new application market of CPP, such as DVD and audio-video box packaging, bakery and pastry packaging, vegetable and fruit anti-fog film and flower packaging, as well as synthetic paper for labels.
There also have stand up with zipper or without zipper type bags for chips.
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