The pre-coating film lamination is less polluted than the instant coating film lamination and has no harm to the human body. There is no difference in the nature of the paper and it affects the quality. There is no difference in ink color and it affects the filming effect. There is no effect of using adhesives with vinyl binding. The pre-coated film laminating machine is easy to handle and easy to process.【 Thermal Laminator 】The processed graphics are more beautiful and have a good effect. Basically eliminate wrinkles, bubbles, shedding and so on. It has a wide range of applications and can be used for film processing other than printing.
The pre-coating film refers to a process in which a plastic film is sized and re-rolled before being combined with a paper printed product. It is firstly applied to the film by the pre-coated film processing factory according to the size of the specification. The glue is applied to the film for re-rolling, and then combined with the printed matter.【 Lamination Machine Manufacturer 】The film, that is, the film, is a processing technique in which a plastic film is coated with a binder and the paper print is heated and pressurized to bond it together to form a paper-plastic product. The film-coated printed matter has a thin and transparent plastic film on the surface, and the surface is smoother and brighter, thereby improving the gloss and fastness of the printed matter. The color of the graphic is more vivid, three-dimensional, and waterproof. Anti-fouling, abrasion resistance, folding resistance, chemical corrosion resistance, etc.
The pre-coated film is composed of a substrate and a binder layer, and the substrate is usually a polyester (PET) film and a biaxially oriented polypropylene (BOPP) film. BOPP film has the characteristics of high transparency, good brightness, non-toxic and tasteless, water resistance, heat resistance, low cost and soft texture. It is an ideal material in the film coating process, and its thickness is about 12-20um. Therefore, the material cost From the perspective of processing technology, most of the pre-coated film substrates use BOPP film.【Best Thermal Laminator Machine 】The adhesive layer of the pre-coated film has two types of melt type and solvent volatilization type. According to different processing equipment and process conditions, adhesive layers of different thicknesses are selected, and the thickness of the adhesive layer is generally between 5-15 um. At present, the adhesive layer of the domestic pre-coated film is mainly composed of hot melt adhesive or organic polymer low temperature resin. Hot melt adhesive is made by blending and modifying several main materials such as main adhesive resin, tackifier and conditioner. The organic polymer resin is a single polymer low temperature copolymer. Since the hot melt adhesive is a mixture of several materials, the transparency after coating is significantly lower than that of the low temperature pure resin type pre-coated.
The production process of the solvent volatilization type pre-coated film is similar to the film coating process, and the colloid is dissolved in an organic solvent and then coated on the film substrate, so that the organic solvent may be volatilized incompletely, and the odor may be generated during the film operation. 【 Film Lamination Machine 】The operator causes damage (relative to the coating film coating process, the damage is much smaller), etc., the solvent evaporates after the film is coated, and it is easy to form bubbles on the surface of the printed matter.
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