The laminating machine is divided into two categories according to different equipments and processes, one is "coated film" and the other is "pre-coated film"; there are two kinds of film and sub film.
        Instant-coated film is a process that uses instant-coated film machine to immediately stick film with glue to carry out paper-plastic compounding. It mainly consists of a coating film processing plant or a processing workshop, where the roll plastic film is coated with an adhesive as required, dried (slightly) compounded, and after pressure, the paper film is adhered together to form a coated product. That is, there are two types of film coating equipment: automatic and semi-automatic. The basic working principles are the same; the process flow mainly includes unwinding → sizing and coating → drying → compounding → slitting → finished product accumulation.
        The laminating process of laminating machine refers to the whole process of laminating pictures and photos, including film selection, film making, and cutting. Mainly used for post-production of advertising pictures and wedding photos. The pictures covered with film have high anti-corrosion, waterproof, dustproof, anti-wrinkle and anti-ultraviolet erosion performance, which can produce strong three-dimensional sense and artistic appeal. So what should we do before the lamination process?
        Inspection work before laminating machine:
        1. Check before laminating machine to confirm whether the machine is in a safe state.
        2. Film transport adjustment to make the film tension even to adapt to the film transport tension.
        3. Check whether the gap between the glue roller and the glue is parallel.
        4. Check the temperature of the heating roller to avoid inaccurate thermometer.
        5. The pressure that the pressure gauge must reach, otherwise the pressure will affect the product.
        6. Clean the sundries on the rubber roller, so as not to cause waste in the finished product.
        After completing the preparation work, close the main power switch, turn on the heating cylinder and the motor, then turn on the oil pump, adjust the flow rate of the laminating glue, and adjust the parallelism between the rollers. Adjust the measurement position of the paper on the feeding table, apply the film-coated glue, and turn on the drying tunnel for heating. After testing several sheets of film, adjust the heating temperature, pressure and air intake of the heating roller again until the effect is good, and then start normal work.

        The automatic laminating machine has a small footprint, simple operation and fast speed. The feeding table adopts a conveyor belt, and the output adopts a power roller, which can withstand heavy heavy plates; it is widely used in stainless steel plates, aluminum plates, aluminum plastic plates, UV paint plates, iron plates, decorative cabinet doors, paint plates, paint Panel, acrylic board, color steel plate, fireproof board, plexiglass board, cabinet door laminating machine, signage, high-end furniture board, color coated board, electrical appliance PVC and other flat coating, affixed, pressed with self-adhesive PE protective film , Electrical cabinets, decorative films, etc., in order to avoid pollution, corrosion, power transmission and scratches during production, processing, transportation, storage and use, protect the original smooth surface and the lens explosion-proof crack. This series of film laminating machine is composed of upper and lower rubber rollers, frame, power transmission and control device, film support frame, etc. It has the characteristics of flat film, no wrinkles, no bubbles, simple operation and long service life.
        The effect of automatic laminating machine process:
        1. Overlay 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 cracking caused by corrosion, humidity, and drying of corrosive gases in the atmosphere, fading and discoloration caused by rain scouring and ultraviolet radiation, and keep the bright color of the picture screen enduring, Extend the life of picture display.
        3. Paste the picture on the display board or fabric to make a hanging advertising picture.
        4. Press a special mask or sheet on the picture to form a picture with special artistic effects such as bright light, matt, oil painting, virtual and three-dimensional.
        Classification of laminating methods of automatic laminating machine:
        The coating process completed with different materials and equipment is divided into several categories according to the temperature and use of the raw materials (consumables) used. The following categories are introduced.
        1. Cold mounting: The method of mounting the protective film on the surface of the picture by cold pressing at normal temperature is called cold mounting. There are single-sided mounting and double-sided mounting. In the operation method, there are also manual peeling and self-releasing membrane mounting. The cold mounting process has the characteristics of simple operation, good effect and low cost. At present, it is widely used in the post-production of advertising light boxes, engineering drawings and wedding photography.
        Second, automatic laminating machine hot mounting: the mounting method of the dedicated hot film on the equipment heated to a certain temperature (about 100-180 ° C) is called hot mounting, which can be divided into single-sided hot mounting and double-sided hot mounting Because of its good light permeability and water resistance, good heat resistance and strong hardness, it is suitable for the post-production of advertising pictures based on lights or other occasions. However, hot laminating equipment and consumables are more expensive, complicated to operate, consume more energy, and cost more.
        Similar to hot mounting, but generally miniaturized. At present, the largest specification plastic packaging equipment on the market is 24 inches, which is packaged by special plastic film heating. It is mainly used for packaging of documents, small-size pictures or documents.
        Automatic laminating machine vacuum laminating. It is to use a special vacuum laminating machine to evacuate the film and the painting and set it at a certain temperature to complete the laminating. The operation method is complicated, the cost is high and the picture size is limited, but the mounting quality is very high and the picture texture is strong, which is suitable for photos.

        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