News Center

Pet protective film manufacturer's solution

At this stage, the key to protective film manufacturers is mainly foreign-funded enterprises and Sino-foreign joint ventures. They have relatively strict regulations on commodity manipulation. The foundation is equipped with a clean coating production workshop above 1,000 levels, and they also have very high regulations on the glue filtration stage.

The key problems encountered in the whole process of Pet protective film coating

During the coating process of the coater, TPE, glue breakage and other conditions occur after coating and bonding due to the natural environment or the residue and suspected glue contained in the glue itself. This kind of situation is very serious, light is harmful to production and manufacturing process, more serious situation is likely to consume a lot of glue and base film, resulting in damage can not be estimated. Therefore, it seems particularly important to ensure the cleanliness of the working environment and glue.

Use of PET film

PET release film is a kind of material commonly used in thermal transfer printing. The substrate is PET, which is also called silicon oil film because it is coated with silicone oil. Conventional thicknesses are from 0.025mm to 0.25mm. Color: transparent, translucent, matte white, pure white, milk white, milk white translucent, light black, matte black. There are hot and cold tearing and smooth surface, after anti-static and anti scratch treatment, the product has good adsorption and fit.

What is MDOPE?

Recently, there have been more and more discussions on recyclable flexible packaging. Polyethylene single material is an indispensable part of recyclable flexible packaging options, and MDO film is an important technical direction for polyethylene single material packaging. Today we will talk about MDO related technologies, applications and materials. The full name of MDO is machine directionorientation, which is an extrusion follow-up process used to increase the orientation of the film in the MD direction, thereby improving the stiffness, optics, and barrier properties of the film. The MDO stretching equipment is completed by 8-12 sticks through four stages of preheating, stretching, annealing and cooling. Preheating: Controlling the temperature around the softening temperature of the raw materials can better help stretch without damaging the film; and because the film is not completely melted, smaller crystals can be formed during the stretching orientation process to achieve better optics. Stretching: The film orientation was controlled by adjusting the stretch ratio. It should be noted that the higher the stretch ratio, the better. At the critical point of stretching, the film properties will reach equilibrium or decrease. Annealing, cooling: affect the film preheating shrinkage, especially the bag flatness; and film optical properties. MDO machines are divided into two types: online and offline. At present, the mainstream chooses online machines. Because the film is stretched in the offline state, the film is thin in the middle and thick on both sides, which is wasteful in use. The online machine can measure the thickness and feed it back to the film making system, so that the film thickness after stretching is more uniform and the cutting edge is reduced.

Which PE plastic bags are specially made

PE plastic bags refer to bags made of polyethylene (Polyethylene) materials. Polyethylene is a common plastic material with high toughness, wear resistance and plasticity. PE plastic bags are widely used in daily life, including shopping bags, food packaging bags, garbage bags and so on.

What are the advantages of PE plastic bags?

PE plastic bag is a film plastic bag made of polyethylene. It has the characteristics of light weight, transparency, softness, durability, waterproof, anti-corrosion, acid and alkali resistance, tasteless and non-toxic, and is widely used in various fields.

How to correctly choose Pe plastic bags?

There are many types of PE plastic bags, which can be divided into PE, CPE, EVA and other types according to the composition. PE material refers to polyethylene material, its high transparency, good softness, commonly used in food, catering, medical, cosmetics and other packaging. CPE material is an improved version of polyethylene material, which is more wear-resistant, temperature-resistant and better sealed than PE. It is often used in operating rooms, hospitals and other environments that require high requirements. EVA material is ethylene vinyl acetate material, has good softness and toughness, can be used to make environmental protection bags, shopping bags, etc.

What is the production process of high quality PE plastic bags?

The main raw material of PE plastic bags is polyethylene, which is divided into low density polyethylene (LDPE) and high density polyethylene (HDPE). The selection of different raw materials will affect the thickness, hardness, transparency and mechanical strength of PE plastic bags. Therefore, before production, it is necessary to accurately select and prepare the required raw materials.

Pet protective film manufacturer's solution

The key to the manufacturers of protective film in this section is mainly foreign-funded enterprises and Sino-foreign joint ventures. They have relatively strict regulations on commodity manipulation. They are equipped with clean coating production workshops above 1,000 grades and have very high regulations on the glue filtration stage.