What is the laminator knowledge The classification and composition of the laminator
The picture of the laminator
Laminating machine composition
Laminating machines can be divided into two categories: ready-to-coat laminators and pre-coating laminators. The ready-to-coat laminating machine includes three parts: gluing, drying and hot pressing. It has a wide range of applications and stable and reliable processing performance. It is currently widely used laminating equipment in China. Pre-coating type laminating machine, without gluing and drying parts, small size, low cost, flexible and convenient operation, not only suitable for laminating processing of large batches of prints, but also suitable for laminating of small batches and scattered prints such as automated desktop office systems Processing, very promising.
①The gluing part. The gluing part is equipped with an adjusting device to adjust the amount of gluing to meet the requirements of different printed parts. The gluing roller adopts rubber roller or steel roller.
②Baking tunnel part. The drying tunnel is generally 2-3m long. The drying tunnel of the laminator is equipped with infrared lamps and electric fans. There are also high-power electric heating pipes and exhaust fans on the upper part of the drying tunnel of the automatic laminator, and the temperature can be adjusted to dry the adhesive and remove exhaust gas.
③The hot pressing part. This part is the key to lamination and is directly related to the bonding fastness of lamination products. The principle of hot pressing is that the adhesive can quickly infiltrate and penetrate into the surface layer of the printed part in the molten state, so as to obtain a strong bonding interface layer. The hot pressing part consists of a set of rollers. One of the hollow metal drums is equipped with electric heating tubes, and the temperature can be controlled automatically. This set of roller pressures can be adjusted.
Lamination is to coat plastic film with adhesive, and combine it with the printed matter using paper as the substrate, after being pressed by a rubber roller and a heating roller, to form a paper-plastic integrated product .
The laminating process of laminating machine refers to the whole process of laminating pictures and photos, including film selection, lamination making, and cutting. It is mainly used for advertising pictures and post-production of wedding photos. The pictures covered with film have high anti-corrosion, waterproof, dust-proof, anti-wrinkle and anti-ultraviolet corrosion properties, which can produce a strong three-dimensional effect and artistic appeal. The cold laminating machine is the main equipment to complete the lamination, and it is also the necessary supporting equipment for the computer inkjet printer and the electrostatic printer. The commonly used equipment for laminating includes four categories: manual cold laminating machine, electric cold laminating machine, self-releasing film cold laminating machine and automatic cold and hot laminating machine, as well as transfer printing equipment.
Effect
1. Put the protective film on the picture to improve the strength of the picture and the wear resistance of the surface.
2. Isolate the picture from the outside air to prevent deformation and cracks caused by corrosion, humidity and drying of corrosive gases in the atmosphere, fading and discoloration caused by rain erosion and ultraviolet radiation, and keep the picture picture The bright color of the product lasts for a long time, prolonging the life of the picture display.
3. Paste the picture on the display board or cloth to make a hanging advertisement picture.
4. Press a special mask or sheet on the picture to form a picture with special artistic effects such as bright, matt, oil painting, virtual, three-dimensional and so on.
Lamination method classification
The lamination process completed with various materials and equipment, along with the temperature and use of the raw materials (consumables) used It can be divided into several categories according to the difference, and the following categories will be introduced.
Cold lamination: The method of laminating the protective film on the surface of the picture by cold pressing at room temperature is called cold lamination. There are also single-sided and double-sided mounted. In terms of operation methods, there are also manual film mounting and self-uncovering film mounting. The cold lamination process has the characteristics of simple operation, good effect and low cost. Widely used in advertising light boxes, engineering drawings and post-production of wedding photography.
Hot lamination
The laminating method of a special hot film on a device heated to a certain temperature (about 100-180°C) is called Thermal mounting can be divided into single-sided thermal mounting and double-sided thermal mounting. Because of its good light transmittance and waterproofness, good heat resistance and strong hardness, it is suitable for post-production of advertising pictures based on lighting or other occasions. However, the thermal lamination equipment and consumables are expensive, complicated to operate, high energy consumption and high cost.
Similar to thermal mounting, but generally miniaturized. At present, the largest size plastic sealing equipment on the market is 24 inches, which is packaged by heating with special plastic film.
Vacuum lamination
It is to use a special vacuum laminating machine to vacuumize the film and the painting and set it at a certain temperature to complete the lamination. The operation method is complicated, the cost is high, and the picture size is limited to a certain extent, but the mounting quality is high, the picture texture is strong, and it is suitable for photos.
