The production process of plastic ton bags is: raw materials -> wire drawing -> weaving -> film coating -> cutting -> printing -> sewing -> inner bag -> inspection -> finishing -> packing -> storage. In the above production process, wire drawing, weaving, film coating, cutting, printing, inner bag, etc. are the main links that produce loss.
1. Wire drawing: This process is one of the consumption processes in the production of plastic ton bags. There are 4 links to produce losses: 1.1 When melt extrusion into a film, there are plastic sheets and plastic blocks that do not form a film; 1.2 The film is cooled and cut to pieces There are hard edges on both sides of the silk; 1.3 The filament after shaping is sucked into the waste wire box when it is wound to the bobbin. 1.4 Every time you change different specifications, varieties, colors, and remove the consumption of the filter.
2. Weaving: In this process, the consumption is also relatively large, and there are 3 processes in total: 2.1 The filament bobbin rotates on the warp frame, and needs to be arranged in an orderly manner, thread jumper, and thread when threading 2.2 When the weft is packed into the shuttle that moves in a circular motion, there will be wool, floating and dirty threads; 2.3 When changing the specifications and varieties of woven fabrics with different widths and units, the front, Consumption of post-extradition filament, monolithic processes.
3. Film coating: The film coating process is the second process with high unit consumption. There are 3 small processes for consumption: 3.1 The burrs need to be cut off after a single piece of ton-bag fabric is coated; 3.2 When the raw materials are melted and extruded, there are 3.3 Consumption of front and rear extradition woven fabric single piece and composite woven fabric when changing specifications of different door widths and different unit weights each time.
4. cutting: The cutting process is the third process with high unit consumption, and there are 6 consummations: 4.1 The shape of the inlet and outlet is different, and the unit consumption is different. The waste is greater, and it is also affected by the length of the material opening. The longer the material opening, the greater the unit consumption; 4.2 The consumption of the bag body, the bag cover on the bag body is connected to the feeding opening, and the larger the material opening, the more it needs to be dug out. The bag cover fabric is more wasteful. Similarly, the size of the bottom cloth cover and the feeding opening is also one of the factors that affect the unit consumption; 4.3 The spacer bag, the spacer bag is to prevent the bag body from swelling around the bag after the goods are loaded, which affects transportation. , storage and space saving. There are many holes on each spacer to facilitate the smooth flow of logistics. The size and number of holes dug out are the places where the unit weight is consumed; 4.4 The consumption of the round bag body is also large, not only the inlet and outlet ports It is necessary to dig holes in the bag cover and the bottom of the bag, and cut the cover and bottom into a circular shape, so that the unit consumption will be greater; There is a small amount of consumption such as wool and floating silk when threading the button. 4.6 Because all the professional automatic production equipment is used, there will be an inevitable time difference once a broken wire or a breakdown occurs, which will affect the woven fabric. , tape and other substrates, so when cutting out the substrates with quality sub-points, it will also produce consumption.
5. Printing: When printing patterns or texts in ton bags, there will be consumption of positioning, proofreading and ink color.
6. Inner bag: The consumption of inner bag is mainly caused by the uneven control of blow molding, and the excess part that is cut out is consumed.
7.Sewing: The single consumption of sewing thread used in the splicing of the ton bag sewing process is small and can be ignored.