The laminating machine manufacturer briefly analyzes the pre-coated film. This process does not require a binder heating and drying system, which greatly simplifies the laminating process, and the operation is very convenient. It can be turned on at any time, and the production flexibility is large, and there is no solvent odor. No environmental pollution, more importantly, it can completely avoid bubbles, delamination and other failures. Its finished products have extremely high transparency and have broad application prospects and promotion value.
Brief analysis of the laminating machine manufacturers. The structure of the pre-coated film is composed of a substrate and an adhesive layer. The substrate is usually PET and BOPP film. From the perspective of material cost and processing technology, most pre-coated film substrates use BOPP film with a thickness of 12 -20 microns, the thickness of the glue layer is 5-15 microns. According to different processing equipment and process conditions, different thicknesses of adhesive layer are selected. The adhesive layer is divided into hot melt adhesive and organic polymer low temperature resin. The difference between the two is that hot-melt adhesives are made by blending and modifying several materials of the main tackifier resin, tackifier and modifier, while the organic polymer resin is a single polymer low-temperature copolymer.
Laminating machine manufacturers stated that due to limitations in technology, production equipment, and raw materials, pre-coating films (mostly hot-melt adhesives) produced by domestic equipment still have quality defects. Because there are production processes that rely on a process similar to that of coating the film, the colloid is dissolved with an organic solvent, and the roller is coated on the substrate film with a concave anilox roller, so there is insufficient solvent evaporation, and an odor occurs during operation. After coating, the solvent evaporates and the surface is prone to blistering. At the same time, because the hot-melt adhesive is blended with several kinds of polymer materials, during use, poor temperature control will cause degradation and cross-linking of the polymer in the hot-melt adhesive, resulting in poor coating surface. Some pre-coated film colloids are easy to adhere to the outer surface of the substrate, resulting in poor winding. Since the adhesive layer is thin and the surface is not activated, defects such as insufficient adhesion to the printed matter are likely to occur. Since the hot-melt adhesive is composed of several materials, the transparency after coating is significantly worse than the low-temperature pure resin pre-coating film.
Brief analysis of the laminating machine manufacturers The pre-coating laminating machine is a laminating equipment with the least investment and the best effect. It is because the pre-coating laminating machine uses an environmentally friendly laminating process, and the operation is simple and the investment is small. It is easy to use. Whether it is mass production or a small amount of laminating, it can be used conveniently. The laminating machine widely used on the market today is a small laminating machine. Therefore, the market potential of the small laminating machine is huge, and the products that use the laminating machine for post-printing processing must have strong market competitiveness. We developed and sold a series of small laminating machines to bring the most affordable, direct and convenient service to our customers.

1. The product to be constructed on the small film laminator must be straight. Handle uneven paper with "ruffled edge" and "tight edge" phenomena. Paper with "lotus edge" can be baked, and paper with "tight edge" can be hung to dry.
2. Be sure to wait for the blot to dry before laminating, otherwise it will cause blistering or hair pulling.
3. Spray as little powder as possible during printing, otherwise it will cause emptying and bubbling at the powder pile. Before spraying the film, the powder should be disposed of. If the number of prints is large, the powder can be hung to dry, and if the number of prints is small, the powder can be manually wiped.
4. Attention should be paid to the direction of the paper strands, especially thick paper, to reduce the curling of the paper due to rolling and stretching.
There is also: the temperature is generally controlled to 40 ~ 60 ℃. Too high a temperature will deform the paper and film, causing the product to curl, but not too low, otherwise it will cause insufficient viscosity. The temperature of coated paper should be slightly lower than that of offset paper.

1. The machine of the automatic laminating machine does not start: the input wire is disconnected, the power cord is reversed, and the voltage is not enough.
2. When the automatic laminating machine does not reach the suction, the film is pulled down: whether the solenoid valve or the hand valve is open.
3. Suction film is not in place: insufficient vacuum, air leakage, insufficient temperature, the film is too thin, the workpiece is pasted with other materials, the concave depth of the workpiece exceeds the lift of the film, the suction time is too short, the film is not lifted, the distance of the workpiece Too close.
4. The main power switch trips: leakage of the input wire on the top of the heating box, leakage of the distribution box, external wires on the equipment, leakage of the motor, etc.
Fifth, the working vacuum does not come up: the gas path is not open, the hand valve or the solenoid valve is not closed, the vacuum pump motor belt is loose, and the vacuum gauge is damaged.
Sixth, the surface of the overlaid workpiece is folded and not smooth or the corners cannot be wrapped: the film is not straightened, the quality of the film is not good, the workpiece is not well polished, the glue is sprayed too much, and the mold below the workpiece is too low.
7. Inaccurate temperature measurement: thermocouple, temperature controller. Whether the installation is incorrect and damaged.
8. Breaking phenomenon: the temperature is too high, the heating time is too long, the film quality is not good, and there is no heating.

The characteristics of the automatic laminating machine: stable operation, high speed, high precision, and no pollution to the paper surface
Process flow of automatic laminating machine:
Rely on the suction and blowing to separate the paper from the stack and transport it to the host
1. Loose paper blowing nozzle, blow more than ten sheets of paper on the top of the loose paper stack;
2. The paper separation nozzle separates the top paper from the loose paper;
3. Press the paper corner to press the unseparated paper;
4. The paper feeding nozzle conveys the separated single paper forward;
5. Paper on the flush paper stack;
6. The paper delivery nozzle continues to feed the single sheet of paper forward to the front gauge for positioning;
Maintenance method of automatic laminating machine:
1. Regularly clean the dust, slippery and powder impurities accumulated in the suction cylinder (up and down activities with a little gas oil, clean and dry);
2. In daily work, due to the accumulation of various impurities on the semi-closed friction surface, it should be cleaned periodically. It can be cleaned with gasoline, either manually or manually. After the dirty oil flows out, wipe it and add lubricating oil;
3. The nozzle tablet should be replaced regularly;
4. The air shaft and the air suction tube of the suction nozzle are strictly prohibited to add lubricating oil;
5. Grease or lubricating oil is often added to the internal eccentric cams, remember not to overdo it;

The laminating of the automatic laminating machine is to apply the adhesive to the plastic film and combine it with the printed matter using paper as the substrate, pressurized by the rubber roller and the heating roller, and form a product of paper and plastic. The printed product after lamination has a thin and transparent plastic film on the surface, which makes the surface smoother and brighter. The automatic laminator not only improves the gloss and fastness of the printed product, but also extends the service life of the printed product. At the same time, the plastic The film also plays a protective role such as waterproof, anti-fouling, abrasion resistance, folding resistance, and chemical resistance.
If a transparent bright film laminating film is used, the printed graphics and text of the laminating product are more vivid and full of three-dimensional sense, which is especially suitable for the packaging of green food and other commodities, which can arouse people's appetite and consumption desire. If a matte film lamination is used, the lamination product will give consumers a noble and elegant feeling. Therefore, the packaging printed matter after laminating can significantly improve the grade and added value of the product packaging.