In general, the plastic bags produced by plastic absorption plants on the market are made of two kinds of plastic films: one is made of polypropylene, polyethylene, melamine and other raw materials; the other is made of PVC. The former is non-toxic; the latter is toxic and cannot be packaged by Dongguan Chang'an Blister Factory.

Plastic bag has avirulence to use the following simple method to distinguish:?

Shake detection method is to hold one end of the plastic bag by hand and mix it with force. If the sound is crisp, it is non-toxic; otherwise, it is toxic.

Touch detection method touch plastic bag with hand, it is non-toxic if there is a sense of lubrication; otherwise, it is toxic.

The fire detection method can cut off a side of the plastic bag and burn it with fire. The toxic one is not easy to burn; the non-toxic one is easy to burn in case of fire.

Water detection method put plastic bags into water, non-toxic plastic bags into water, can surface; and toxic plastic bags are not upward floating Dongguan Chang'an plastic factory.

Classification and application of plastic bags

The appearance of PE plastic bag is not very transparent. It has a turbid feeling and good toughness. Many raw materials of hand-held bags are made of PE materials. Many products are packed with PE plastic bags. There are also plastic bags with large specifications for industrial use. Therefore, PE plastic bags are widely used. The thinnest film blowing thickness of PE plastic bags can be 1C or even thinner A lot of bottled water packages 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.

PVC bags are soft in texture, and the thickness of the general blown film bags is a little thicker than that of the general blown film bags. PVC plastic bag production manual ingredients are more. Now it has not formed an automatic production line, which is not as large as the output of other line bags, so the price still has a certain profit margin. PVC plastic bags are not environmental protection materials, so there are certain restrictions in some industries.

PP plastic bag belongs to the transparent type in the film blowing plastic bag. Generally used in the product packaging more Dongguan Chang'an Blister Factory.

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.