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Functions and Differences of Flexible Container Bag Film

Flexible container bags are woven from polypropylene flat wires. Because of this braided structure, very small raw materials may leak out from the weaving gap or sewing line pores, such as fine sand, fine powder and other products. If you use non coated container bags to pack powder products, when you knock one side of the container bag, you will see dust cloud like products leaking out of the container bag. Although in some scenarios, it doesn't matter; However, in other scenarios, this is not allowed. The structure of coated container bag is the same as that of non coated container bag. However, before the bag is sewn into shape, an additional layer of polypropylene film will be coated on the sheet cloth to seal the flat yarn weaving gap. The coating film is common in the bag, because it can prevent the powder products from being embedded in the woven flat wire when discharging.

2021

Classification knowledge of various container bags

Classification knowledge of various container bags: Supplements generally refer to nutrients such as vitamins, amino acids and minerals. Most of their raw materials are in the form of granules and powders, so the entire production and transportation process needs to meet the standards of food/drug grade. Container bags are generally used for bulk transportation of supplements and raw materials, and three points should be noted for such container bags. 1. Leakproofness Generally, when sewing the container bags, the pieces of cloth will pierce holes, and fine powder may leak out from the holes or weaving gaps. The leakproof container bag shall be specially designed according to the transported goods, and the leakproof strip, non-woven fabric or double-layer bag body shall be adopted according to the flow coefficient of goods (the greater the leakage is, the easier the leakage is).

2021

Non negligible points in the production process of woven bags

The production process of woven bag manufacturers is also a process of constantly solving problems. For woven bags, it is important to eliminate static electricity generated in the production process. In fact, this problem can be easily solved by professional woven bag manufacturers. We already know that in the production process of woven bags, many processes can eliminate static electricity, from the purchase of raw materials to the delivery of woven bags. One of the easy to operate procedures is in the process of wire drawing, as long as the use of static elimination equipment or a piece of wet cloth can be very simple to eliminate.

2021

Have you been hit by the notice of plastic woven bag covering?

1. Align with the middle of the rubber roller as much as possible before rolling the cloth. 2. Before the roll of woven bag is fed into the vehicle, both ends of the silicone rubber roller shall be coated with silicone oil. 3. The synchronous speed is reduced to less than 30 m/min when receiving and unloading cloth. 4. Clamp the roll before receiving the cloth, and don't forget to stick the tape. After receiving the cloth, keep the cloth edge aligned with the polarization correction photoeye and then lift the pinch roll. 5. When connecting new cloth, the width of the cloth varies, so it is necessary to observe the cloth edge and adjust the mold edge. 6. The vehicle speed is slightly slow before receiving cloth; After receiving the cloth and before the double-layer joint enters the corona, turn off the corona machine first. 7. After the double-layer joint enters the compound roll, lift the edge cutter and turn on the hair dryer. After the joint, cut and trim the edges. 8. When the joint is rolled, change the roll in time.

2021

Is plastic woven bag harmful to human body?

Whether the woven bag is harmful to human body. Generally speaking, the color of woven bags is divided into white or grayish white, tasteless, and less harmful to the human body. Although woven bags are formed through various chemical reactions of chemical plastics, the fact that they are environmentally friendly is undeniable, and the recycling efforts are also large. Therefore, woven bags have no impact on human body Woven bags have a wide range of applications, most of which are used for packaging and packaging of various items, and are widely used in industrial chemistry. The plastic woven bag is made of polypropylene resin as the main raw material, which is extruded and stretched into flat wires, then woven and made into bags. The composite plastic woven bag is made of plastic woven cloth as the base material by tape casting. According to the sewing method, the woven bag can be divided into bottom sewing bag, bottom sewing bag, pocket inserting bag and adhesive sewing bag. The plastic woven bag is mainly composed of polypropylene bag and polyethylene bag; According to the sewing method, it can be divided into bottom sewing bag and edge sewing bag. At present, it is widely used as a packaging material for fertilizer, chemical products and other articles. The main production process is to use plastic raw materials to extrude film, cut, stretch in a single direction into flat wires, and weave them through warp and weft to make products, which are generally called woven bags.

2021

How to prevent static electricity in the storage and transportation of chemicals to ensure the safety of goods

There are two aspects of harm 1. Electric shock; 2. Causing combustion and explosion accidents; Such as aluminum powder, when the aluminum powder dust in the air reaches a certain concentration, that is, the explosion limit, it will become an ignition source once encountering an electrostatic discharge spark, causing combustion and explosion. It not only causes loss of goods, but also endangers life safety. Causes of static electricity The generation of static electricity has its internal and external causes. The internal cause depends on the conductivity of the material, The common external cause is the electrification caused by the mutual friction of substances. For example, friction, rolling, impact, etc. between materials during storage and transportation, followed by attached electrification, induced electrification, etc.

2021

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