Structure and configuration of hot laminating machine:
1. Manual paper feed.
2. The baffle of the paper feeding table can be adjusted according to the paper width.
3. The photoelectric paper stacking positioner can automatically control the length of the paper between the paper (optional).
4. Heating method: electric heating tube, the temperature can be adjusted according to the requirements of the laminating film.
5. Pressurization method: Air pressure method can avoid site pollution caused by traditional hydraulic method. In addition, the pressure can be adjusted according to the requirements of the lamination.
6. Punching hob can roll out a row of small holes on the edge of the film to achieve automatic slitting smoothly.
7. Anti-curve device: The paper after lamination is shaped by the anti-curve device. After slitting, the paper is no longer curled.
8. The film slitter can cut wide and long film rolls (relative to paper specifications). After cutting, the excess film remains on the film release shaft.
Saving film when operating the laminating machine can greatly save costs. This is also the most basic operating specification of the laminating machine. Here are some suggestions on how to save film:
When laminating, attention should be paid to the texture direction of the film, especially the thick film, to reduce the phenomenon that the film is curled due to rolling and stretching.
Laminating machine should pay attention to control the speed, control the speed according to the actual experience and material changes, try to maintain a uniform speed.
Floor-mounted laminating machines are generally widely used in printing plants, large graphic companies, and photo studios. The advantage is that the output is large; the disadvantage is that the modeling takes up a lot of space and the cost is high. For example, the wide-format professional-grade full-function laminating machine has a synchronous reel design with automatic drawing and backing paper, and can independently adjust the pulling force and drawing speed of the film, which can be adapted to high-volume and high-load work.
Desktop laminating machine has the advantages of small size, relatively cheap price and moderate speed; the disadvantage is that the output is not as high as the floor-standing large laminating machine, so it is suitable for use in print shops, small printing plants, photo studios, and printing shops, such as small The multifunctional graphic laminating machine can be used to process small batches of personalized laminating processing of documents, recipes, business cards, cards, covers, picture books, drawings, etc.
Only under the pressure, the hot-melt adhesive in the viscous state of the rotary film laminator will fully wet the paper print surface in the process of driving the air away from the print surface. Diffusion and dislocation of colloid molecules to the ink layer of paper prints and paper molecules, and achieve good adhesion, forming a complete envelope on the entire surface of the printed matter, so that the printed matter is bright, no fog, leveling of the glue layer, no creases , The bonding effect is good, in the case of no wrinkle, the pressure is appropriately increased, so that the thermoplastic curing performance of the hot melt adhesive can be fully expressed.
The reason for the vacuum rotary laminating machine is that the surface tension value of the glazing paint is large. The wetting effect of the outer ink layer of the printed matter is not good. The surface tension value should be reduced to improve the wettability of the ink layer of the coating; the solvent in the coating is poorly volatilized, the residual solvent in the coating is high, and the volatilization rate can be changed to high The solvent may make the coating completely dry and then press it; it may also be that the speed of the coating is too fast, the drying temperature is low, the coating is not completely dried, and the solvent is not completely evaporated, you should adjust the coating Process conditions; the ink layer on the surface of the printed matter will also crystallize, which requires effective measures, such as removing the oil on the crystallized surface of the ink layer or performing a roughening treatment to improve the wetting effect of the coating on the ink layer to weaken or Eliminate the adverse effects of ink layer crystallization on glaze coating.
So how to reduce the loss of the motor and extend the life of the laminating machine; when using it, you should pay attention to the following items.
1. Clean up debris, dirt on the motor, nearby debris, and stay away from flammable and explosive materials.
2. Before starting, check whether the machine rotates smoothly, whether it is stuck or blocked, and whether the belt connection is normal; if there is any abnormality, never start the laminating machine.
3. The voltage at start-up should conform to the rated voltage. It is not suitable to start the laminator if the voltage is too high or low; the general voltage value is about 5 to 10 percent of the rated voltage value.
The transmission system is controlled by a computer. After the gear is decelerated, the movement and compound part of the paper feed mechanism are driven. The pressure roller can automatically maintain the working pressure without adjustment to ensure that the coating work can continue. If the coating comes out of the product If the brightness is not enough, it can be squeezed by the calender roller for a second time, which should improve the brightness.
In terms of cost, the roll-to-roll self-adhesive film laminator is ultra-small, which greatly saves expensive semiconductor materials; advanced low-temperature process technology can not only save energy and reduce consumption, but also facilitate the use of cheap substitute substrates (Such as glass, stainless steel, etc.). In terms of use, the film solar cell has high temperature resistance and is more suitable for use in areas with high temperatures and deserts; good low-light characteristics allow it to generate electricity even on cloudy days; plus the use of flexible substrate technology, The scope of application has been greatly expanded, including the curved outer walls of various buildings, portable charging bags, etc., all of which can use film solar cells.
According to the different equipment, the roll paper film can be divided into:
Bottom paper composite film compounding-carried out on a labeling machine, using a special composite film with bottom paper, covered with a film under the action of a composite device. This is a traditional laminating method. In recent years, it has been replaced by a process that uses a bottomless paper composite film.
Lamination without backing paper composite film-carried out on the labeling machine, the principle of laminating is basically the same as that with backing paper composite film composite technology. The bottomless paper film is replaced by the surface smoothness (surface tension) of its own material after replacing the backing paper. After the adhesive is bonded to its surface, it can also be peeled off without leaving traces of glue. The material used for the bottomless paper film is a BOPP film with low surface tension. The bottomless paper film has low cost and is currently the most widely used film material.