The laminating machine is a kind of product in which a plastic film is coated with an adhesive and printed with paper as a substrate after being pressed by a rubber roller and a heating roller to form a paper-plastic product. The classification can be divided into coating laminating machine and pre-coating laminating machine. The printed product after the coating has a thin and transparent plastic film on the surface, the surface is smoother and brighter, which not only improves the glossiness of the printed product and Fastness extends the life of printed matter. So, when the laminating machine is laminating, how can it reduce the amount of film and save costs?
The amount of film used in the automatic laminating machine is mainly related to the operation level. Therefore, Maoyuan Machinery generally recommends:
1. The product to be constructed must be straight. Handle uneven paper with "ruffled edge" and "tight edge" phenomena. Paper with "lotus edge" can be baked, and paper with "tight edge" can be hung to dry.
2. Be sure to wait for the blots to dry before using the laminating machine for laminating, otherwise it will cause blistering or hair pulling.
3. Spray as little powder as possible during printing, otherwise it will cause emptying and bubbling at the pile. Before spraying the film, the powder should be disposed of. If the number of prints is large, the powder can be hung to remove the powder. If the number of prints is small, the powder can be wiped manually.
4. When laminating, attention should also be paid to the direction of the paper strands, especially thick paper, to reduce the curling of the paper due to rolling and stretching.
The automatic laminating machine should do inspection and analysis before use, find problems in time, and avoid failure of mechanical equipment during operation. Next, let's take a look at the inspection work before using the automatic laminating machine.
The automatic laminating machine is best to regularly check whether there is glue or grease on the rubber roller, and wipe the rubber traces and dust on the roller in time to ensure that the appearance of the two rollers is black. The surface of each roller of the automatic laminating machine must be cleaned. Not only this, it is necessary to clean the machine immediately after using the machine every time. Wash with glue thinner and wipe the rollers with a soft towel. It is strictly forbidden to scrape the surface of the drum with a sharp tool. Every time the machine is turned on, the surface dust of each roller should be wiped off. Computer bronzing machine and check whether the appearance of each roller of the machine is black, when the machine shows defects or abnormal dynamics, it is necessary to analyze and find the reason and eradicate it in time, and wait until the machine is normal before allowing it to continue to operate.
The blade line of the scraper blade of the automatic laminating machine should be flat and elastic. When the appearance of detours, teeth, curling, etc., it should be trimmed and exchanged in time. Exchange it according to the original standard. Lubricant should be added to the transmission parts and sliding surfaces of the machine on time to ensure that the machine is in excellent lubrication conditions. Especially the large bearings of the pressure rollers are subject to high pressure and high temperature, and the lubricant is evaporated and thrown away at will. High temperature lubricating oil, so that it can operate normally under high temperature and high pressure. The floor formwork support of the automatic laminating machine uses the steel pipe bracket composed of the connection piece and the steel pipe, and gradually opens up perfectly as a fastener type steel pipe bracket.
What are the three most critical parts of the laminating machine? The laminating machine is mainly divided into three parts: gluing, drying tunnel and hot pressing.
1. The glue 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 uses rubber roller or steel roller.
2. Part of the drying tunnel. The drying tunnel is generally 2 ~ 3m long. The drying tunnel of the laminating machine is equipped with infrared lamps and electric fans. There is also a high-power electric heating tube and exhaust fan on the upper part of the drying path of the automatic laminating machine. The temperature can be adjusted to dry the adhesive and eliminate the exhaust gas.
3. Hot pressing part. This part is the key to laminating, which is directly related to the adhesion fastness of the laminating product. The principle of hot pressing is that the adhesive can quickly infiltrate and penetrate into the surface layer of the printed matter in the molten state, so as to obtain a strong bonding interface layer. The hot pressing part is composed of a group of rollers. One of the hollow metal rollers is equipped with an electric heating tube, and the temperature can be controlled automatically. The pressure of this group of rollers can be adjusted.
What is lamination?
Laminating is to apply a binder to a plastic film by a water-soluble laminating machine, and then combine it with a printed matter using paper as a substrate, pressurized by a rubber roller and a heated roller, and form a product of paper and plastic. Due to the thin and transparent plastic film on the surface of the printed product, the surface is smoother and brighter, which not only improves the gloss and fastness of the printed product, but also extends the service life of the printed product. At the same time, the plastic film is waterproof and Protection against dirt, abrasion, folds, and chemical corrosion.
What is a laminating machine?
The laminating machine can be divided into two categories: instant coating laminating machine and pre-coating laminating machine. 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-coating laminating machine, no gluing and drying parts, 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.
Laminating machine is a kind of special equipment for paper, board and film laminating. It is combined with rubber roller and heating roller to form a product of paper and plastic. Next, let's talk about the maintenance and repair of the rubber roller of the laminating machine.
1. When cleaning the rubber roller every day, it must be carefully cleaned, otherwise the surface layer of the rubber roller and the pigment and resin will be oxidized to create a smooth and hard film, which will cause the surface vitrification and affect the ink transfer. If it is not cleaned frequently, the surface of the rubber roller of the laminator will be uneven and not easy to use. Therefore, the rubber roller should be cleaned and put aside when it is stopped.
2. The rubber roller of the laminating machine is aged for a long time, coupled with the corrosion of chemicals, causing the "slag" of rotten rubber. It is best not to use such rubber roller, otherwise it will seriously affect the quality of the print.
3. In order not to affect the production and printing quality, there must be spare ink rollers, but do not store too much to avoid aging. The storage environment of the rubber roller is the same as the blanket. In addition, the rubber roller should be placed straight at the journal, and the surface should not touch each other or other objects to avoid deformation of the rubber roller.
4. The rubber roller of the laminating machine should not be stored near the large electric idea and generator. Due to the large amount of ozone generated by these devices, the surface of the rubber roller will age and crack.
5. When the weather is very cold, the ink is uneven, and auxiliary materials can be added to the ink appropriately. It is forbidden to use infrared heaters and other equipment to bake the ink rubber roller to prevent the rubber roller from oxidation.