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.

The hot laminating machine is actually a cold laminator that is not heated and adopts a cold pressing process or a low temperature cold laminator. It is also called a hot laminator. This type of hot laminator is mostly a pre-coating laminator. There are many laminators on the market for the mounting of the dedicated hot film when it is heated to a certain temperature (about 100-180℃), but the heating method and heating performance are not the same. Many hot laminators are only It can be heated to 130°C. Although many hot laminating machines use silicone rollers for heating rubber rollers and indicate high temperature resistance to 200°, it is important to know that the thermometer measures the surface temperature of the rubber roller when it reaches 30-50°C. , The internal iron core may have reached more than 100 ℃, so the heating temperature of many thermal laminating machines generally does not exceed 130 ℃, and the thermal laminating machine with a heating temperature of 150 ℃ is already very good.
Rubber laminating rollers and silicone rollers are commonly used in hot laminating machine rubber rollers. The heating performance of the hot laminating machine rubber roller and the hot laminating machine are closely related. If the quality of the laminating machine rubber roller is not good, it is not suitable. The temperature and pressure of the lamination will seriously affect the peritoneal effect of the laminator. Everyone knows that uneven pressure of the roller and unevenness of the rubber roller will cause wrinkling during lamination. Jintu multifunctional professional cold and hot laminating machine uses customized professional-grade 130mm diameter weighted high-quality rubber rollers, which uses fast preheating and high efficiency internal heating roller heating methods, and the temperature can be adjusted freely, thus ensuring different The film is stable and suitable for all kinds of different materials to meet various professional film requirements. And because the process of coating is generally divided into cold treatment, heat treatment, low temperature treatment, etc., different treatment methods need to be selected according to the characteristics of the material to be processed, and there may be one or more working temperatures to meet the needs of the coating work.

The effect of the hot laminating machine directly affects the quality of the printed matter and directly affects the interests of customers.
In the pre-coating film laminating machine, the glue is melted by heating, and then the film is adhered to the printed matter by pressurization. The single-sided film curling of the small pre-coating type thermal laminating machine has always been a headache. What is the reason for the single-sided film curling of the film machine?
After many times using small pre-coating hot laminating machines, after experimenting with printing materials of various materials, we found that the single-sided laminating film curled generally showed curling in the direction of the film, which could not be kept flat and wrinkled. If the mark is serious, it will automatically curl into a cylindrical shape, which will affect the effect of subsequent processes. The main reasons for single-sided film curling:
1. The coated paper is too thin; although the current laminating machine is suitable for laminating paper prints of various materials, the thinner the paper, the easier it is to deform and curl
2. The paper has much water content and high humidity; the paper is loose and flat. Laminating machine should also pay attention to the direction of the paper strands, especially thick paper, to reduce the phenomenon of paper curling caused by rolling and stretching.
3. The pressure of the hot laminating machine is high, the temperature is too high, and the time is too long. The current working temperature and working speed of the hot laminating machine can be adjusted freely. For the lamination of various printed products, the selection and setting should be based on different materials. Set temperature and speed.
Product quality standard of hot laminating machine: the surface is clean, flat, no blur, good finish, no wrinkle, no foam, no paper-plastic separation, no powder foil marks. The degree of drying is appropriate, and there is no phenomenon of sticking the surface film or paper. Handle the relationship between the temperature, pressure and time when the paper and plastic film pass through the hot pressing mechanism during the laminating process. Pay attention to adjusting the temperature, mechanical pressure and mechanical speed of the heat roller to avoid blistering and paper during laminating Problems such as poor plastic adhesion.

During the use of the pre-coating film laminating machine, occasionally some faults will appear. Let's take a look at how to eliminate some common faults.
First, the machine does not start: the input wire is not connected, the power cord is reversed, and the voltage is not enough.
2. Inaccurate temperature measurement: thermocouple, temperature controller. Whether the installation is incorrect and damaged.
3. The working vacuum cannot 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.
4. The main power switch trips: leakage of the input wires on the top of the heating box, leakage of the distribution box, external wires on the equipment, leakage of the motor, etc.
Fifth, the suction film is not in place: the vacuum is not enough, the air leakage, the temperature is not enough, 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 between the workpiece Too close.
Sixth, the surface of the workpiece covered by the pre-coating film laminating machine is folded and not smooth or the corners cannot be wrapped: the film is not straightened, the film quality is not good, the workpiece is not polished well, the glue is sprayed too much, and the mold below the workpiece Too low.
7. Breaking phenomenon: the temperature is too high, the heating time is too long, the film quality is not good, and there is no heating.