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What are the production process of building material protective film?
- Aug 13, 2018 -

The building material protective film is usually made of a special polyethylene film as a substrate, a cross-linked acrylic resin as an adhesive, and then processed by several special additives. Its production is a relatively complicated process, and it usually takes a lot of processes to make a protective film.


First of all, according to the specifications of building materials protective film required for different products, according to the testing structure in the formulation, process, testing and production plan, after many tests and trials, to make products suitable for customers. And according to the production of building material protective film products, the raw materials are matched according to the plan.


More of the process used for forming protective film of building materials is blown film, that is, the plastic particles are melt-plasticized in a film blowing machine, extruded into a film tube through a circular die, and compressed air is used to inflate and cool the film. Then, by using a gravure printing machine, the printing plate is immersed in the ink tank, the non-engraving portion is removed by the doctor blade, and the ink is transferred to the printing substrate by the embossing rubber roller.


According to the specifications of the building protective film and the applicable products, the glue is applied, and then the adhesive is uniformly applied to the substrate by a professional coater. In this whole batching, blown film, printing and coating production process, there will be professional quality inspectors to conduct product quality inspection.