How are plastic bags produced? How are plastic bags made? The production process of plastic bags, the time cycle sharing required to customize plastic bags. Plastic bags are common in supermarkets and shopping malls, and are also an indispensable necessity in people's daily life. Usually there are tens of thousands of custom-made plastic bags like ordinary supermarkets, because of the particularity of plastic films, they need to be mass-produced. So, how is this plastic bag made? Today, Anhui Wujiu Plastic Industry will explain to you.

Step 1: Determine the specifications and sizes and print documents

Regarding the specifications of plastic bags, they are similar with minor differences, non-uniform specifications, and can be customized according to customer requirements. Conventional specifications such as: 20*32cm, 25*40cm, 30*48cm, 35*55cm. The thickness is not less than 0.025mm for a single layer according to the standard of the plastic restriction order.

The printed manuscript can be based on the sample, or the customer can design it and hand it over to the manufacturer, or let the plastic bag manufacturer design it on its behalf.

Blow the film according to the order quantity, and contact the plate making factory for plate making

Blown film refers to a plastic processing technology in which plastic particles are heated and melted, extruded through an extruder, and then blown into a plastic film by a blower. The plastic vest bag is made of high-density polyethylene (HDPE, also known as low-pressure material).

The time required for plate making is usually about 5 days, which can be rented from the plate making factory.

Step Two: Printing

Plastic vest bag printing is generally relatively simple, the color is not complicated, simple and concise.

The third step: sealing and cutting

Plastic bag sealing and cutting is to seal and hollow out the printed roll material, and it is also the last step of plastic bag forming.

Now the advanced sealing and cutting machine is formed in one step, without punching and hollowing out.

HDPE material is the main material for making plastic bags.

Disposable plastic bags: This polyethylene material (HDPE) has very good hardness. Although there are certain difficulties and strict technical requirements in the process of making plastic bags, the products produced are very good. nature, and very good performance. The HDPE material itself has very good stability, so this also guarantees the condition of the plastic bag to a large extent when it is used. This kind of material for making plastic bags is a kind of material with very high crystallinity and non-polar thermoplastic resin, which has very good safety no matter in the stage of material storage or in the stage of production to use. It is very good for users in terms of sex and convenience. the

The polyethylene material used to make plastic bags is in a milky white state before it is processed, but after some primary processing, its shape will also change to a certain extent, for example: when the material is in the state of a thin cross section It is in a translucent state, which is also the pre-working state of the plastic bag forming. Note: The polyethylene material used to make plastic bags has very good durability, and it can also be used against life and within a certain range. Chemicals have their own characteristics. As we can find in the process of use, the material of the vest bag has very good non-hygroscopic performance, and is very good at waterproofing vapor, which also greatly extends its use area. It is very special that this material for making vest bags has very good electrical properties, and its insulating dielectric strength is also very high. It is worth mentioning that this material can be used well at different temperatures, which also greatly improves the use of plastic bags. The above is a detailed interpretation of the plastic bag production process.