1. The hand-held type is a sealing strip with other technologies, such as punching hand-held holes or aircraft holes.

2. The common type is the one with a sealing strip, which has no other technology.

3. The kangaroo has two openings, one with a sealing strip and the other with a flat mouth, just like a kangaroo has a bag.

4. Most of the bone bags are made of PE material, while the bone bags are generally made of Po material, and the manufacturing process is pasted by hot process after film blowing.

According to the materials, PE bags are generally divided into po PE PP OPP PVC and other PE bags. Their appearance is not very transparent. They have a sense of turbidity and good toughness. Many raw materials of hand-held bags are made of PE materials. Many products are packaged with PE bags. There are also industrial bags with large specifications. Therefore, PE bags are widely used. The thinnest film blowing thickness of PE bags Can do 1C, and even a little thinner, many barrels of water packaging belong to that category.

Po Plastic bags have good tensile force, high hardness and slightly lower transparency than other plastic bags. Due to the good tensile force, they are widely used in shopping malls and hotels. Most vest bags are made of Po materials.

PP plastic bag belongs to the transparent type in the film blowing plastic bag. Generally used in the outer packaging of products more.

Opp plastic bag is brittle and hard with high transparency. If there is no gap, it is difficult to tear, but if there is a gap, it can be torn without any strength. The processing technology is made of hot sealing machine. If the machine is not adjusted properly when cutting and sealing, or if the raw materials are defective, it is easy to crack. However, if the general items are not specially required, they are generally No problem.

There are two forms of cutting seal, one is line cutting seal, the other is explosion-proof side cutting seal. In fact, the two methods are the same when they are made, but it's because of the positive knife and the negative knife.

Generally speaking, the process flow of OPP plastic bags should be cut into appropriate specifications first, and then the printed ones should be printed. If they are not printed, they should be folded directly. According to the requirements of the order, they should be added with viscose and white pearlescent film, and then placed for a period of time, they can be cut and sealed directly, and then punched according to the requirements of customers, and then packed and shipped.

The scope of application of OPP plastic bags, such as greeting cards, ornaments, leather goods, clothing, etc., can often see traces of OPP plastic bags.

Bubble bag is mainly used for industrial product packaging and anti-static package.