The laminating process emerged in the 1960s, and the earliest use was the instant coating technology (that is, oily laminating). Later, the American GBC company invented the pre-coating film technology. Since this technology overcomes the various defects of the instant coating film, it has gradually replaced the instant coating film technology. Laminating is an important method for surface finishing of printed materials that use paper and other materials as carriers. The improvement of the quality of laminating has placed increasingly higher requirements on the stability and temperature control accuracy of the laminating machine.
If a transparent bright film lamination is used, the printed graphics of the lamination product will be 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, elegant feeling. Therefore, the packaging printed matter after laminating can significantly improve the grade and added value of the product packaging.

After the modification of the laminating machine, the stability and followability of the system have been greatly improved, the problems of reverse osmosis membrane jitter and scratches have been completely resolved, and the product quality has been greatly improved. The composite reverse osmosis membrane is a new type of polymer material, and the membrane laminator is the key production equipment. There are many problems with the electrical control system of the imported laminating machine, which cannot guarantee the quality of the product. The overall scheme design for the transformation of the electrical control system of the laminator. The PLC with simple programming and easy maintenance is used to replace the industrial computer, and the inverter is used to replace the imported DC speed regulating device with poor reliability. Only by making the tension of each section of the reverse osmosis membrane constant during the operation of the equipment can the quality of the reverse osmosis membrane be ensured.
The laminating process of laminating machine refers to the whole process of laminating pictures and photos, including film selection, film making and cutting. Mainly used for the post-production of advertising pictures and wedding photos. The pictures covered with film have high anti-corrosion, waterproof, dust-proof, anti-wrinkle and anti-ultraviolet erosion performance, which can produce a strong three-dimensional sense and artistic appeal. The cold laminating machine is the main equipment to complete the laminating, and it is also the necessary supporting equipment for the computer inkjet machine and electrostatic photo machine. Commonly used equipment for laminating are manual cold laminator, electric cold laminator, self-exposed film cold laminator and automatic cold and hot laminator. There are also transfer equipment.

Paper-plastic composites are both decorative and durable, and are very practical post-press processing techniques. Laminating is to apply plastic adhesive to the plastic film and print it with paper as the substrate, and then press the rubber roller and the heating roller to form a product of paper and plastic. The printed product laminated by the laminating machine has a thin and transparent plastic film on the surface, which makes the surface smoother and brighter, which not only improves the gloss and fastness of the printed product, but also prolongs the service life of the printed product. To waterproof, anti-fouling, abrasion resistance, folding resistance, chemical corrosion and other protection.
The laminating process is widely used in various packaging, ranging from medicine boxes, handicraft boxes, to outer packaging boxes and various product packaging. The current lamination process includes pre-coating, dry lamination, and wet lamination. Among them, the pre-coated film has been seldom used because of the high cost. The wet method uses a water-soluble adhesive cold-bonding process. The dry-type compound traditional laminating process is to apply a solvent-based adhesive directly to the BOPP film and dry it in a drying tunnel. In the case of heating and pressurization, it is pressed against the printed matter. Due to the use of flammable and toxic solvents, it will cause greater harm to workers and the environment, and it is very likely to cause fire.

At present, there are many and many types of adhesive label laminating machines on the market, but generally speaking, there are two main types of laminating machines: instant coating laminating machines and pre-coating laminating machines. Instant coating laminating machine includes three parts: gluing, drying and hot pressing. It has a wide range of application and stable and reliable processing performance. It is currently widely used in China. Pre-coated laminating machine, no gluing and drying part, small size, low cost, flexible and convenient operation, not only suitable for laminating processing of large batches of printed products, but also suitable for laminating small batches and scattered printed products such as automated desktop office systems Processing is very promising.
The self-adhesive label laminating machine mainly has the following advantages: simple and easy to use, saving operation time. No foam, no wrinkles or delamination. After coating, the effect is brighter than traditional cold glue coating (oily, water-based), and the product can be stored for a long time without turning yellow. No solvent pollution makes the factory safer and environmentally friendly, and the workers are healthier. It meets the environmental protection requirements of European and American countries and has been widely used by European and American manufacturers.
Obviously, the pre-coating laminating machine is the mainstream trend of the development of self-adhesive label laminating machines in the future. Because of its simple and easy operation, environmental protection and energy saving, it has a broader development space and market. Regarding the label laminating machine, I recommend the self-adhesive label laminating machine produced by the company is mainly suitable for the post-press processing industry of various roll materials of self-adhesive trademark. Compared with traditional self-adhesive and cold-adhesive film, the cost of the product is reduced by more than 45%, and the trouble of changing the film after 400 meters is eliminated. The product has good adhesion, high transparency, strong durability, and composite hot roller. The oil medium electric heating method is adopted, and the surface temperature is uniform. The feeding shaft and the receiving shaft adopt the air-expansion shaft method. It is convenient to operate, safe and reliable. It is a highly efficient and economical and highly practical machine in the era of low profit in the self-adhesive industry.
How to choose the right label laminating machine is of course the best pre-coated self-adhesive label laminating machine with good operation, energy saving and long service life, which has the following advantages: it can make stickers The cost of light film lamination is approximately 45%; the cost of self-adhesive dumb film lamination is approximately 50%; the cost of self-adhesive laser film is approximately 60%; synthetic paper, PVC, PET, PP reel and other materials are perfectly covered.

The influence of roll-to-roll laminator on printing quality mainly includes the following:
1. If the surface roughness of the printed matter is too high, it will affect the castability (leveling and spreading) of the adhesive, resulting in uneven coating, and the product surface after filming will have bright spots or "fogging" with different gloss.
2. The printed film laminator with poor flatness is prone to wrinkles, and due to the unevenness of the paper, the adhesive cannot be evenly coated on the paper, resulting in film peeling and blistering.
3. It is inevitable that chemical syrup will be used in the printing process, and it is easy to change the surface structure of the paper, so that the adhesive and the paper cannot be in good contact, causing the product to foam after being placed for a long time.
4. Roll-to-roll laminator Note: The product should be stored for a period of time after printing to facilitate the evaporation of paper moisture. Otherwise, after the film is evaporated, the paper fibers shrink as the water evaporates, which will cause the film to wrinkle.
5. The adhesive layer of the printed surface of the laminating machine is dried to the initial dry when the peritoneum is in place, and the thickness is about 0.002mm ~ 0.003mm. Therefore, if the powder sprayed on the printing material is too thick, it will cause a thin snowflake shape on the product due to the incomplete pressure spot.
6. If the ink layer on the surface of the printed matter is too thick or not dry, the adhesive applied by the roll-to-roll laminating machine during the lamination cannot penetrate through the pores between the ink layer and the paper to bond, and false bonding will occur. , Causing the finished film to foam in a short time.