- Plastic Packaging Bag
- Cardboard Packaging Box
- Plastic Packaging Box
- Paper Packaging Bag
The applications for that uses of polyethylene ( polythene ) vary enormously, 1 of the are usually uses often seen is the everyday plastic bag. A year millions of several plastic bags are created and used to get wide range of applications, and as a result of the environmental impact, most companies now produce biodegradeable credit cards. This type of plastic is made using sugar cane, and considered more ' environmentally friendly within.
Polythene is created from crude oil or natural gas let's consider main ingredients, and originally it was produced using a top pressure process. Today however, newer kinds of polythene are usually produced using lower pressures. Granules within the 'raw' material are designed using these processes, and these are then delivered towards polythene bag manufacturing factories in bulk containers or carriers.
The granules are then mixed with additives and any colouring agents if desired, and given to the next stage of the bag making process, which is to produce a polythene (tubular) film. Well-liked carried out with the use of a film extruding machine, and the finished rolls of film can be anything up to ten thousand metres in total and weigh up to one hundred kgs.
Standard polythene bags are produced with one side open and three sides closed down. There are two methods of producing these bags, and the actual lengthways and side to side.
With the lengthways method the roll or tube of film is laid flat, and pulled through a machine where a hot wire makes a seal across the tube. A tool known as the flying knife cuts the film within the seal, while the film is held motionless during the sealing process. This is because the bottom for the bag is formed by the seal, and the folds of the layflat tubing. These these are known as bottom-weld bags.
When employing the sideways method, the bags are produced sideways by using an unit with a hot knife to cut and seal the tubular film, additionally forms the sides of the bag, the bottom being the fold within the tubular film. All of these known as side-weld bags.
The production of polythene bags typically produced in four stages; raw material, film, printing (optional), and the final product. The final product can go to many different uses such as:
Eco packing is becoming a lot more popular no issue . lower impact on the enviromentally friendly. Most manufacturers and retailers stock a wide range of eco-friendly green packaging products, to suit most requirements and help towards some sort of environment.