The same is plastic film, wound film and plastic wrap what is the difference?

The first time someone sees the wrap, their first instinct is to ask, "Isn't this a very large plastic wrap?" If you don't believe me, wrap film and plastic wrap are similar to the material, but the use, specifications, production process and so on are very different. Today I'm going to talk about the difference between the two. Winding film factory winding film price

1. Other definitions

Winding film (stretch film, heat shrink film), the first PVC in China is the substrate, DOA is the production of PVC coil film with plasticizer and adhesive. Environmental protection problems, high cost (larger than PE, smaller unit packaging area), poor elasticity, etc., were gradually phased out when the domestic production of PE stretch film began in 1994 to 1995. PE stretched film initially uses EVA as the self-adhesive material, but the cost is high and the smell is bad. In the future development, PIB and VLDPE are used as the self-adhesive material, and the substrate is LLDPE with C4, C6, C8 and metal PE(MPE) as the center.

Plastic wrap is a type of plastic packaging material, usually using ethylene as the base material, produced by polymerization. Plastic laboratories can be divided into three categories: polyethylene PE, PVC and PVC PVDC. Among them, PVC laboratory contains carcinogenic substances, which are harmful to human body, and the cost of generating PVDC laboratory is high, so PE laboratory is the most used in the market.

2. Different uses

Plastic wrap is commonly used to wrap cooked food for the family, refrigerate, preserve meat, and protect small things.

Winding film is generally used for transportation packaging, such as the winding packaging of large pallets, containers and boxes, and can also be used for short distance transportation and sales packaging, such as daily necessities packaging, stainless steel pipe, plastic pipe, profile wrapping packaging, plastic decorative board, roll floor, roll carpet wrapping packaging. Mainly used to prevent things from unraveling or scratching.

Winding film factory winding film price

Different specifications

The wrap film is thicker and larger than the plastic wrap.

Household plastic wrap is generally large, 30 cm wide and about 10um thick. The typical large width of industrial rolls is 50cm and the thickness is about 20um.

4. Different elongation rates

The tension of the wound film is greater than that of plastic cling film, and the coiled film can be blocked directly by LDPE for use at 300%-500% stretch rate. Plastic wrap, on the other hand, is sticky on items and the roll is associated with the use of polyisobutene.

What causes the forming effect of stretch film to be bad?

With the application of stretch film more and more widely, we can see the production of stretch film manufacturers are more and more, in many production of stretch film manufacturers, there is no lack of some small manufacturers Bingzhe the purpose of making money quickly to produce some substandard stretch film, so many people have found that they buy these manufacturers of stretch film products molding effect is not ideal, Even very affect our use, so in the end what is the cause of the tensile film molding effect is not good?