The operation of the hot laminating machine includes three parts: gluing, drying and hot pressing. The operation is higher. The advantage is that the quality of the finished product is reliable. Its fatal disadvantage is that the oily glue will produce gases that affect human health during processing. So this technology At present, it has been completely banned in developed countries such as Europe and the United States. Water-based adhesives are more environmentally friendly than oily ones, and their relative oily costs are higher.
        The application scope of the hot laminating machine: suitable for color printing, packaging paper, soft sheet, soft rubber plate and other lamination (over film), so that its surface is bright, colorful and waterproof. Water-based and oil-based dual-purpose machines can be customized according to user requirements.
        Detailed description of hot laminating machine:
        1. The base, wall plate, etc. are made of cast iron, never deformed, to ensure that the accuracy will not be affected during the use and repair and replacement of parts.
        2. The glue roller and the glue-limiting roller are manufactured with precision. The roller surface concentricity error is controlled within 0.01mm to ensure even glue application and save glue consumption.
        3. The hot composite steel roller is processed by mirror surface treatment, and the finished film is excellent.
        4. Electronic automatic constant temperature device.
        5. Unique design of hydraulic system, precise and stable. It is equipped with a roll paper feeding device, which can be applied to the compounding of roll materials.

        Brief analysis of laminating machine manufacturers There are two major types of laminating equipment: instant coating laminating machine and pre-coating laminating machine. The instant coating laminator has a wide application range, stable and reliable processing performance, and is a widely used laminating device. Pre-coated 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 processing of small batches and scattered printed products such as automated desktop office systems .
        The laminating machine manufacturers briefly analyze the coating forms of the laminating machine: drum reversal type, concave type, direct glue without scraper, and direct glue with scraper.
        1. Brief analysis of concave glue application by laminating machine manufacturers. It consists of a metal glue roller with a textured surface and a group of film partition rollers. The glue roller is directly immersed in the glue solution, and the glue solution is taken out from the glue storage tank with the rotation of the roller. The excess surface is scraped off by the scraper Glue. Under the action of the film pressing roller, the glue in the groove of the roller is driven by the film to be coated which is directionally moved and is evenly spread on the film surface. The amount of glue can be controlled by adjusting the grid pattern on the surface of the coating roller shaft, the characteristic value of the adhesive, and the pressure value of the laminating roller. The advantage of concave coating is that the amount of coating can be controlled more accurately and the coating is uniform; however, the anilox roller is difficult to process and easily damaged, and needs to be cleaned frequently. In addition, the coating requires higher adhesives.
        2. The manufacturer of the film laminating machine briefly analyzes the reversal coating of the roller. It is an indirect glue coating, which is the most widely used by various models. . The glue supply roller brings out glue from the glue storage tank, and the glue scraping roller and the glue plate can scrape the excess glue back to the glue storage tank. The film counter-pressure roller of the laminator presses the film to be applied to the surface of the glue roller after the glue is homogenized, and maintains a certain contact area, and the glue solution is continuously coated on the surface of the film under the action of pressure and adhesion. The amount of glue can be changed by adjusting the distance between the rubber roller and the rubber roller, and the rubber roller and the rubber sheet.
        3. A brief analysis of the laminating machine manufacturers without squeegee roller extrusion coating. The glue roller is directly immersed in the glue liquid. During the coating, the glue roller brings out the glue liquid and passes through the glue roller. After the glue is evenly glued, the glue is applied by the pressing force between the film pressing roller and the glue roller.

        The laminating machine often encounters a problem during normal production, that is, the phenomenon of snowflakes, which is actually a very normal working situation, as long as we thoroughly understand the specific reasons for the occurrence of snowflakes, solve and deal with the lamination in this way The machine snowflake phenomenon is very simple
        In general, the main phenomenon of the phenomenon of snowflakes when our laminating machine is working is that the paper and the film are separated again after bonding or the bonding is not strong, which we call the false sticking phenomenon is the snowflake we refer to.
        There are several main reasons for the occurrence of snowflakes:
        The first is the thick ink film layer on the surface of the printed matter, which leads to insufficient separation of the glue at one time, that is, the glue is spread out unevenly, so the adhesion is not firm and leads to the phenomenon of snowflakes. If this happens, you only need to increase the glue two times. In this case, the drying time is a little slower, but the snowflake phenomenon can be solved. At the same time, remember that if the glue is too large after the paper is laminated, there will be squeeze on both sides. And the phenomenon of paper bending deformation and expansion must be thoroughly analyzed and adjusted according to the actual situation on site
        The second is that the paper is sprayed with too much powder during printing, and the bond between the paper and the glue is not tight, resulting in the phenomenon of snowflakes. The solution to this situation is to manually wipe the powder on the surface of the paper manually. In the future, the powder removal machine will generally remove the powder on the surface of the paper before the lamination starts. This is a quicker method. Once the powder is removed, there will be no snow on the surface of the paper. At the same time, reducing or reducing the amount of powder sprayed as much as possible during the next printing will also solve this problem, and the problem can also be solved by appropriately increasing the contest of the laminating machine. Once the powder is removed, the surface of the paper will not have snowflakes. Off

        The laminating machine can be divided into two categories: instant coating laminating machine and pre-coating laminating machine. It 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.
        1. The machine does not start: the input wire is disconnected, the power cord is reversed, and the voltage is insufficient.
        Second, the temperature measurement is not accurate: thermocouple, temperature controller. Whether it is installed incorrectly and damaged.
        3. The working vacuum does not come up: the gas path is blocked, 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 wire 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 overlaid workpiece has folds and is not smooth or the corners cannot be wrapped: the film is not straightened, the quality of the film is not good, the workpiece is not well polished, the glue is sprayed too much, and the mold below the workpiece is 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.
        Eight, bad sticking situation
        1. Improper selection of adhesive, improper setting of glue amount, incorrect proportioning measurement. The type and amount of adhesive should be reselected.
        2. The diluent contains alcohol and water that consume NCO groups, so that the hydroxyl group of the main agent does not react. High-purity ethyl acetate should be used.
        3. There is powder spraying on the surface of the printed matter. Wipe gently with a dry cloth.
        4. The ink layer of the printed matter is too thick. Adhesive coating arrangement should be increased to increase pressure
        5. The ink layer of the printed matter is not dry or completely dried. It should be hot pressed once before gluing; choose an adhesive with high solid content; increase the thickness of the adhesive coating; increase the temperature of the drying tunnel, etc.
        6. The adhesive is absorbed by the printing ink and paper, which makes the coating amount insufficient. Should re-formulate and set the coating amount.
        7. The surface treatment of plastic film is not enough or exceeds the applicable period, which makes the treatment surface invalid. The plastic film should be replaced.
        8. The pressure is low, the speed is fast, and the temperature is low. The temperature and pressure of the film should be increased, and the vehicle speed should be appropriately reduced.
        9. Foaming
        1. The printing ink layer is not dry. It should be hot pressed again and then glued; postpone the coating time and let it dry completely.
        2. The printing ink layer is too thick. Should increase the amount of adhesive coating, increase pressure and compound temperature.
        3. The drying temperature is too high, and the surface of the adhesive skins. The drying temperature should be reduced
        4. The surface temperature of the composite roller is too high. The temperature of the composite roller should be reduced.
        5. The film is wrinkled or loose, and the film is uneven or curled. The film should be replaced and the tension adjusted.
        6. There are dust impurities on the surface of the film. It should be cleared in time.
        7. Uneven coating of adhesive and low dosage. The coating amount and uniformity should be improved.
        8. The adhesive concentration is too high, the viscosity is large, and the coating is uneven. Use thinner to reduce adhesive concentration.
        10. Laminating machine wrinkling
        1. The film transfer roller is unbalanced. The transfer stick should be adjusted.
        2. The ends of the film are inconsistent or wavy. Qualified film should be replaced.
        3. The adhesive layer is too thick, the solvent is not evaporated completely, which affects the viscosity. When pressed by the pressure roller, the paper and the film slide. The amount of glue should be adjusted to increase the temperature of the drying tunnel.
        4. Both ends of the electric heating roller and the rubber roller are unbalanced, the pressure is inconsistent, and the linear speed is not equal. Two rollers should be adjusted.

        When choosing a laminating machine (peritoneal machine) machine, many customers want to buy a specialized laminating machine. It is best to use a laminating machine to package all their products. This idea is understandable, but it is not desirable. . At present, there are many types of laminating machines on the market, which are dizzying. Customers have a sense of discomfort when choosing laminating machines. Can't help but ask: How can I buy a laminating machine that suits me?
        Because there are many types and models of laminating machines on the market, it is easy to cause confusion when buying, and there is no choice.
        The size, function, characteristics, price and brand of the laminating machine will be different. You can choose a new laminator, or you can buy a second-hand laminator with good performance. Relatively speaking, buying a new laminator is guaranteed both in terms of performance and after-sales. Rest assured.
        1. Tape laminating machine
        The most commonly used laminating machines for homes and small businesses use adhesive tape. This type is very effective and the price is not expensive. The adhesive tape is used to heat and press the plastic document or photo.
        2. Oil temperature hydraulic glue-free peritoneal machine
        The heated rubber roller uses heated melted glue on the laminated film, and then uses the roller to apply it to paper or cards. The use of rollers means that the adhesive can be distributed more evenly, reducing the risk of air bubbles on the laminate. Laminating machine rolls can be used for large-size lamination, often used in the printing industry to laminate posters, magazines, postcards and books. This type of laminating machine is also widely used in houses, offices and schools. If the content to be coated is easily damaged by heat, cold-rolled rubber rollers can be used.
        3. Document laminating machine
        These machines are dedicated to plastic documents. Before the document laminating machine was born, it was necessary to use plastic bags or plastic bags to seal the documents, and the bubbles generated would make the contents of the documents difficult to read. The document laminating machine solves this technical problem. The ID laminator can also punch holes in the ID, put on a rope and hang it around the neck. Some document laminating machines have laser visible imaging, ultraviolet color, and nano text to prevent forgery.
        Fourth, low-cost second-hand laminating machine
        If you have insufficient funds, you can buy a second-hand laminator. Sometimes, choose A4 laminator. Or self-sealing laminating machine.
        These are models of laminators that can be selected, it is necessary to do some investigations before purchasing, and purchase the appropriate model according to actual needs.
        Summary: Now the society is developing rapidly, the products are extremely rich, all kinds of commodities need to be packaged, so the development of laminating machinery has been born.