1. Inappropriate temperature control
When laminating different substrates with self-adhesive laminating machines, the temperature of the electric heating steel roller must be adjusted according to the covered products. If the laminating substrate is gold cardboard, the temperature of the laminating steel cylinder should be controlled at 70-80℃: if it is covered with 250g/m2 or 300g/m2 gray white paper, the temperature should be adjusted to 80~90℃. When the whiteboard paper is placed, it absorbs more water than gold cardboard. Especially in rainy days and winter, if the temperature is not adjusted properly, the coated product will not be bright. When laminating, it is sometimes found that there are obvious water droplets or steam on the silica roller, which is caused by the paper absorbing a large amount of water. The film temperature of such products must be increased. For the first-received product, the temperature of the drying tunnel can be controlled at 50~60℃. Use the glued film to stick it with your fingers at the exit of the drying tunnel, and there will be no traces. If the film temperature is too high, it will foam. Therefore, the temperature of the heating steel drum must be controlled according to the product characteristics when laminating.
2. Insufficient pressure
According to the needs of customers, the thickness of the substrate material is mostly inconsistent. When laminating, the pressure between the silicone roller and the steel roller should be adjusted according to the thickness of the substrate paper. If the pressure is too small, the film of the coated product will be weak, not bright, and wrinkles are easy to occur: too much pressure will cause film wrinkles and paper deformation.

The trademark laminating machine can use thermal transfer technology to print trademarks, bar codes, labels, etc. on commodities. It is precisely because of the advantages and disadvantages of thermal transfer technology that this technology is usually favored and used by jewelry stores, printing manufacturers, and building materials departments with a certain scale.
In terms of market demand for trademark laminating machines, with the continuous development of the commodity economy, various manufacturers and departments have higher and higher requirements for the trademark, label and packaging beauty of their own products. For the printing industry, the concept of printing has long been different. The traditional paper in people's impression is printed. From our daily necessities to office appliances, to products in various industries, such as electricity, decoration, and crafts, we need more, better and more practical external packaging, and most of these packaging are realized by transfer , So the transfer industry has a very broad and deep market space.

Easy operation
There is no need to prepare glue before the production of pre-coated film, as in the instant coating process, there is no need to adjust the amount of glue during the production process, there is no need to dry the adhesive, and there is no need to clean after the work, which greatly shortens Time for work assistance. Therefore, for different pre-coating film laminating equipment, each shift can be equipped with at most 2 to 3 operators, which reduces the enterprise's human resource cost.
Reliable quality of pre-coated film
The structure of the pre-coated film is based on BOPP, and EVA hot melt adhesive is sprayed uniformly on it. Compared with the instant coating glue, the advantages of hot melt adhesive are:
1. It has good leveling in the molten state;
2. The glue molecule has a strong ability to diffuse into the ink and paper;
3. Strong ability to melt powder;

1. The high speed and high quality of self-adhesive label laminating machine is the development direction of label printing. Rotary printing will become the main production method of label printing. In Europe, America, Japan and other countries and regions. Flat and round flat label printing equipment has been basically eliminated. And with the localization of rotary label printing equipment, its price may be reduced to the level of imported flat-bed label printing machines, which will promote the expansion of the rotary label printing machine market.
2. Flat, convex, flexible, and net combined printing machines are more ideal: due to the diversified needs of label products in terms of beauty, anti-counterfeiting, and individualization, the advantages of various printing methods are the best choice to reflect the printing effect. Therefore, the design and application of combined printing presses with flat, convex, flexible and net functions will increase. This is also the development direction of label equipment manufacturers.
3. The online post-press processing is further expanded: the online post-press processing unit includes round knife die cutting, punching, indentation, hot stamping, laminating, embossing, compounding, gluing, folding, sheet cutting, and dividing. Strips, etc., and the post-press processing unit can be flexibly combined to provide a variety of high-speed, reel-type automatic post-processing methods.
4. New labels for self-adhesive label laminators enrich the label market: the development of radio frequency labels and in-mold label technologies will promote the rise of related markets, such as the demand for materials and equipment. In addition, there are many applications that cannot be ignored, such as highway tickets, airplane boarding passes, and admission tickets. Visitor tickets, etc. are all label products, which should attract the attention of printing companies.

1. The machine of the trademark laminating machine does not start: the input wire is blocked, the power wire is connected reversely, and the voltage is not enough.
2. Inaccurate temperature measurement: thermocouple, temperature controller. Whether the installation is incorrect or damaged.
3. The working vacuum cannot be increased: the air path is blocked, the hand valve or solenoid valve is not closed, the vacuum pump motor belt is loose, and the vacuum gauge is damaged.
4. The main power switch is tripped: the input wire of the heating box is leaking, the distribution box is leaking, the external wire is tied to the equipment, and the motor is leaking.
Fifth, the film suction of the trademark laminating machine is not in place: insufficient vacuum, air leakage, insufficient temperature, film too thin, workpiece pasted with other materials, the depth of the workpiece exceeds the film lift, the suction time is too short, the film is not stretched Rise, the workpiece is too close.