laminating machine——SMFM-375E
What is the machine parameter of this machine?
It's a Digital Bronzing Semi-automatic laminating machine with rewinding. And its name is SMFM375E. Firstly, the feeding mode is automatic. The operating speed is 0-10m/min, and their laminating temperature is 20~160℃. Furthermore, the total power is 2kw. Moreover, the maximum height of the paper is 5cm. Besides the max paper size is 350mm. And the dimensions(L×W×H) are 0.77×0.53×1.14m.
What is the influence of ink layer condition on laminating quality of laminating machine?
The condition of the ink layer of the printed matter mainly refers to the properties of the paper, the performance of the ink, the thickness of the ink layer, the surface of the graphic and the integration density of the printed graphic, etc. Their influence on the quality of the lamination, mainly on the bonding strength of the printed matter and the film.
1. Ink layer thickness. When the ink layer of the printed matter is thick and the graphic area is large, these inks change the porous surface characteristics of the paper, close many paper fibre capillaries, hinder the penetration and diffusion of the adhesive, and make it difficult for the printed matter to stick to the plastic film. When combined, failures such as delamination and air bubbles are prone to occur.
2. The role of ink thinner. Commonly used ink thinners are white ink, Willy oil and bright paste. Among them, white ink has noticeable silty particles, which are not tightly combined with the binder. After printing, these pigment particles will float on the paper surface, hindering the adhesion. Veli oil is rolled from aluminium hydroxide and connecting material. Due to the light weight of aluminium hydroxide, it often floats on the surface of the ink layer after printing. The bright paste is made of resin, dry vegetable oil, drier, etc. It has a fine texture and bright conjunctiva. It has similar properties to film-covering adhesives with conjugated multi-bonded terpene resin as the main component. They have good affinity and can firmly adsorb the polypropylene film on the ink surface.
3. Add dry oil. Adding drying oil to the ink can accelerate the drying of the imprint. Still, a large amount of drying oil can easily make the surface of the ink layer a glossy and smooth low-interface d layer, and the adhesive is difficult to wet and penetrate, affecting the film's fastness. Therefore, To control the amount of dry oil added.
4. Dusting. Offset printing adopts the process of powder spraying to prevent the printed matter from being dirty, and a layer of fine particles is formed on the surface of the powder spraying ink layer. When laminating, the adhesive is not glued to the ink layer everywhere. Still, it is glued to these powders, forming a pseudo-stick phenomenon, which seriously affects the lamination quality. Therefore, powder spraying technology should be avoided for the products to be coated, and the powdered printed matter should be wiped off one by one with a dry cloth.
5. Gold and silver ink prints. Gold and silver ink is prepared with metal powder and connecting material. The uniformity and fixation force of these metal powders in the binder are inferior, and the ink layer is easily separated during the drying process. These divided metal powders form a barrier between the ink layer and the adhesive layer, affecting the adequate bonding of the two interfaces. After this product is placed for some time, wrinkles and bubbles appear. Therefore, the lamination of gold and silver ink prints should be avoided.
6. The drying condition of the ink layer of the printed matter. When the ink is not completely dried, the high-boiling solvent contained in the ink can quickly swell and stretch the plastic film, which is the main reason for the bubbles and delamination of the product after the film is coated. The sufficient drying of the ink layer is the primary condition to ensure the quality of the ink coating. They can be dried for products that are not dry and need to be covered with ink urgently.
What are the characteristics of the fully automatic laminating machine?
The automatic laminating machine is a printed matter that processes and coats the plastic film on the paper through the device. This is widely used in people's daily life. It is mainly used in magazines, book covers, packaging boxes, calendars, paper bags, etc. It can be described as ubiquitous. In the past, the traditional laminating machine had low working efficiency and labour costs. People have invented the automatic laminating engine, which uses modern advanced laminating technology to automate paper feeding and cutting, significantly improving productivity. Efficiency, reducing the cost of labour input. Not only that, the colour of the products laminated by the automatic laminating machine is more beautiful and beautiful, and it is moisture-proof, easy to clean and durable. The automatic laminating engine generally consists of three parts: glueing, drying tunnel and hot pressing. Glueing mainly uses an adjustment device to adjust the amount of glueing to meet different needs. The drying tunnel primarily uses electric heating pipes and fans to complete the drying of the adhesive on a drying tunnel of 2 to 3 meters. Hot pressing is mainly to obtain a firm interface layer and achieve the purpose of durability.
What are the coating methods of the fully automatic laminating machine?
The automatic laminating machine mainly includes roller reverse type, concave type, direct glueing without scraper and direct glueing with a scraper.
1. Concave coating. It consists of a metal coating roller with a textured surface and a set of film partition rollers. The coating roller is directly immersed in the glue, and the glue is taken out from the glue tank with the rotation of the roller, and the scraper of bond scrapes off the excess surface of the roller. Under the action of the lamination roller, the glue in the groove of the roller is driven by the film to be coated, which moves in a directional motion and is evenly spread on the film's surface. The amount of glue applied can be controlled by adjusting the grid pattern on the coating roller's surface, the adhesive's characteristic value, and the laminating roller's pressure value. The advantage of gravure coating is that the amount of glue applied can be controlled more accurately, and the layer is uniform; however, the anilox roller is challenging to process, easy to damage and needs to be cleaned frequently. In addition, it requires high adhesives during coating.
2. Roller reverse glueing. It belongs to indirect glueing, the most widely used in various models. The glue supply roller brings out the glue from the glue storage tank, and the scraping roller and the glue scraper can scrape the excess glue back to the glue storage tank. The film back-pressure roller of the laminating machine presses the film to be coated against the surface of the coating roller after the glue is evenly glued and maintains a specific contact area. The bond is continuously covered on the surface of the film under the action of pressure and adhesive force. The amount of glue applied can be changed by adjusting the distance between the squeegee roller and the squeegee roller and between the squeegee roller and the glue plate.
3. No scraper roller extrusion coating. The glue application roller is directly immersed in the glue solution. When layer, the glue solution is brought out by the glue application roller and is evenly glued by the glue application roller. The glue application is completed by the extrusion force between the lamination roller and the glue application roller.
What is the workflow of the small, fully automatic laminating machine?
Small laminating machine are very common in the daily advertising photo industry, and many advertising manufacturers use the products of small laminating machine. The following small series will introduce this product's operation process. The following is a detailed step-by-step explanation:
The first step is to use the bracket to place the stable small laminating machine and firmly fix it on the workbench. This step is to improve the device and arrange the lamination platform to make a unique platform for lamination. This is the start and a critical step. This step is key to whether the product can have a good lamination effect.
The second step is to fix the material to be coated on the iron roller, turn the coating of the film upward, adjust the pressure of the rubber roller, adjust it slowly, and remove the material to be coated from the middle of the rubber roller and the machine. Just wear more than 10 cm.
The third step is to tighten the product and adjust the position, which is the critical point for the product to display the film's effect well when it is used and meticulously produced. In addition, when operating early, we must pay attention to the impact of fixing the product to avoid skewing.
Step 4: If laminating is required, the cold laminating film needs to be passed 10 cm out of the two rubber rollers of the laminating machine and placed on top of the consumables, and then adjust the pressure regulating handwheel on the laminating device, put down the coating roller, and adjust to the idle distance. The pressure at both ends must be the same.
Step 5. If there is a skew phenomenon during use, you have not placed it properly, and you should proceed after placing it. You can walk for a short distance, cut it off slowly, re-right, and then start the machine working. (Remind everyone that you must be even and stable when righting, take your time)
Step 6. If there are wrinkles, don't stop the machine immediately; let it continue to run for a while, then stop the engine and slowly take out or cut off the film; if you use a cold laminating machine, it may be The phenomenon of excessive pressure occurs because the device itself has not entirely stopped, and this problem can be solved after the engine stops.
What is the primary function of the laminating machine?
The automatic laminating machine laminating is to coats the plastic film with adhesive and combines it with the printed matter with paper as the substrate, after being pressed by a rubber roller and a heating roller to form a paper-plastic product. The printed matter after lamination has a thin and transparent plastic film on the surface, which makes the surface smoother and brighter. The automatic laminating machine not only improves the gloss and fastness of the printed matter but also prolongs the service life of the printed matter. The film also plays the protective role of waterproof, antifouling, wear resistance, folding resistance, chemical corrosion resistance, etc.
If a transparent and bright film is used for lamination, the printed graphics and text of the lamination products are more vivid in colour. They have a three-dimensional sense, which is especially suitable for green packaging food and other commodities, which can arouse people's appetite and consumption desire. If a matte film is used for lamination, the lamination product will bring a noble and elegant feeling to consumers. Therefore, the packaged printed matter after lamination can significantly improve the grade and added value of commodity packaging.
What are the laminating material selection requirements of the fully automatic laminating machine?
The plastic films commonly used in the current laminating process of the automatic laminating machine are polyvinyl chloride (PVC), polypropylene (BOPP) and polyester (PET) films. BOPP film (15-20 pm) is flexible, non-toxic, high in transparency, and cheap in price. It is an ideal composite material in the laminating process of automatic laminating machines.
To meet the use requirements of the fully automatic laminating machine for laminating printed matter, the plastic film should meet the following requirements:
1. Thickness directly affects the transmittance, refractive index, film fastness and mechanical strength of the film, and the appropriate film should be selected according to the performance and purpose of the film itself;
2. After being treated by corona or other methods, it has better wetting properties and adhesion properties;
3. The higher the transparency of the film, the better to ensure the best clarity of the covered printed matter;
4. The film should have good light resistance, not easy to change colour under long-term exposure to light, and have specific mechanical strength and flexibility;
5. The appearance of the film surface should be smooth, without unevenness and wrinkles, without defects such as bubbles, shrinkage holes, pinholes and pits, and without dust, impurities, grease and other pollution on the film surface.
