plastic custom mailing bag/shopping bag/ trash bag

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plastic custom mailing bags/shopping bag
>material:LDPE
>style:flat pouch
>customized size and printing
bag use:mailing,shop

PLASTIC custom mailing bags / shopping bag /trash bag

Q: What is the material for edible fungus stick packing bag?: High pressure polypropylene bag, the bag has the characteristics of high temperature and high pressure, it can reach 120 degrees and not easily deformed. It is the first choice for factory cultivation.

Q: What are the requirements of the mark on the cement packing bag?: The cement packing bags shall clearly indicate the standards of implementation, cement varieties, codes, strength levels, producers' names, production licence marks (QS) and serial numbers, serial numbers, date of packing and net contents. Bags on both sides should be based on the varieties of cement with different color printing name and cement strength grade, Portland cement and ordinary portland cement Portland slag cement by using red, blue gray volcano; Portland cement and Portland fly-ash composite silicate cement by sleep and black or blue..

Q: What are the bags and bags?: According to the form of packaging categories: three side seal, yin and Yang bags, middle seal, pillow bag, five side sealing bag, self supporting bag, zipper bag, straw bag, coil, cover material and so on

Q: Do vacuum packing bags have to be vacuum packed?: Vacuum packaging bags and vacuum packaging machines are related. Vacuum packaging machine not only can complete vacuum extraction, but also can complete heat sealing packaging in vacuum, and ensure vacuum in vacuum bag can meet the requirement.

Q: The vacuum packing bag is sealed. How can I open the zipper?: In addition to wax, you can also use lubricating oil, to pick a relatively transparent, clean kind of, in the zipper ring drop a few drops, repeated several times, can also achieve smooth purposes.

Q: What's the raw material of the cement packing bag?: Plastic recycling machine is the role of the crushed cleaning waste polypropylene, polyethylene block, sheet, pipe, bottle, film, weaving, silk, pressurized heated in the machine, drawing into strips, the cutter into granular for other plastic processing machinery use.

Q: What are the packaging forms of fresh milk?: In recent years, aseptic composite plastic bags and aseptic plastic cups have developed rapidly. Among them, the composite plastic bag adopts multi layer composite process, and aseptic cup packing adopts a plurality of multi-layer plastic coextrusion sheets to realize the molding, sterilization, filling and sealing of the container. These forms of packaging ensure the quality of fresh milk while enriching the packaging of fresh milk.There is also a plastic bottle of the two sterilized milk, general shelf life in March or more.

Q: What kind of material is the express package on the market now? It's dark in the outer grey.: The materials used for express bags are generally HD-PE, which can be recycled and can be re packed into bags

Q: Printing process of packaging bag: For the surface or irregular surface can be used heat transfer, adhesion is good, not easy to fade, but requires a transfer equipment.Screen printing belongs to orifice plate printing. It is called four printing methods together with flat, convex and gravure printing. Hole printing includes transcription, mesh flower version, stencil printing and screen printing etc.. Printing the principle is: (a version of the base paper or other version of the film version of the ink can be made through holes) at the time of printing, through a certain pressure so that the ink to the substrate through the hole hole Edition (transfer paper, ceramics etc.) on the formation of images or text.

Q: What's bread packing? Polyethylene film, waterproof cellophane, etc.: The utility model has the advantages that can be repeatedly used, easy to get a longer shelf life of bread to marry, and don't need strapping, can take the heat sealing with metal or plastic coated Sizha live bag, bag packaging has knot with polypropylene plastic bags of bread.

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