Laminator Operating Procedures

1. The sensing element of the temperature controller uses the thermocouple to detect the temperature. Due to the influence of the installation location and the surrounding air temperature and external airflow, the accuracy of the temperature measurement has a large error, which is indicated on the thermometer. The temperature is relative temperature, and the temperature should be selected according to the actual processing experience and the indicated value of the reference thermometer;

2. The site must be supervised when the machine is warmed up;

3. It is necessary to check whether the electrical facilities are in good condition before starting the machine;

4. The safety accessories such as protective covers and plates in the machine must be inspected 【 Film Lamination Machine 】before starting the machine to ensure that they are in good condition and are not allowed to be dismantled at will;

5. When the machine is running, it is forbidden to penetrate the fingers into the two rollers to avoid the hand. The temperature of the press roller of the machine is high. Do not touch the hand to prevent burns. When scrubbing the machine, start it at low speed. It should be scrubbed in the correct position to prevent two rolls. Inside the belt, the cloth in the hand;

6. When replacing the filter screen and adjusting the die and scraping the die, the gloves must be worn. If it is working, it is forbidden to wear gloves.

7. It is strictly forbidden to play bare-chested, shorts, skirts, dresses, etc., must wear tight clothes to work;

8. If there are plastic leakage materials, paper scraps, etc. above the composite roller, 【 Automatic Laminator 】 it should not be removed directly by hand, and should be drawn by means of plastic rods, small wooden sticks, etc.;

9. When cleaning the wrap film on the composite roll, it must be stopped;

10. When unloading, be sure to unload the air pressure system, separate the pressing roller from the rubber roller in time, and loosen the scraper and the pre-pressing roller to prevent the two rollers from being damaged by long-term deformation;

11. When the machine is repaired and inspected, the main power switch of the machine should be turned off. The electrical system of the machine should be well insulated to prevent moisture. When the machine is stopped, the power should be cut off to prevent accidents.

12. It is strictly forbidden to place any tools, devices and sundries on the machine. The working air gap of the rubberizing roller and the rubberizing roller is very small. When any hard object is pressed into the surface of the rubber roller, 【 Lamination Machine Manufacturer 】it will leave a crater on the rubber. Depression or crack. Lighter requires a longer period of natural elastic recovery, and the heavy one directly scraps the rubber roller;

13. Pay attention to electrical leakage and injury. Every employee should be aware of the method of urgently cutting off the main power supply. It is not clear that they are not allowed to work;

14. The machine used for new installation should be strengthened to lubricate the machine. Do not use the machine quickly during the running-in period of the machine drive.
　　

Pre-coated film lamination and Instant film lamination

The pre-coating film refers to a process in which a plastic film is sized and re-rolled before being combined with a paper printed product. It is firstly applied to the film by the pre-coated film processing factory according to the size of the specification. The glue is applied to the film for re-rolling, and then combined with the printed matter.

The pre-coated film was first used in 1989 and has been widely used in Europe and the United States. It entered Asia around 1996. At the same time as entering Asia, Europe and the United States have announced that it is forbidden to use the film as a pre-coating film. Due to the late use, all the countries in Asia except Japan have used pre-coated films, and other countries (such as China, South Korea, etc.) are in the state of pre-coating and film coating.【Roll Laminator Manufacturers】China has only used pre-coated films since 2000, and the market share of pre-coated films in China is still small. Precoat films have many advantages over instant coatings. If the pollution is reduced, there is no damage to the human body; the quality of the film will not be affected by the different properties of the paper or the color of the ink; the pre-coating film laminating machine is simpler to operate, and the processed image is better; the wrinkles are basically eliminated. , bubbles, shedding and other phenomena. Most notably, this is an environmentally friendly process, and the entire production process is harmless to the human body.

However, the promotion of pre-coated film in China is still relatively slow. Among them, the cost issue is a big influential factor, which determines the enthusiasm of investors for the pre-coating process. 【Reel to Reel Lamination Machine】In a recent survey, more than half of the respondents believe that pre-coated products are expensive in terms of price, because pre-coated products are printing consumables, and the cost of printing is a non-negligible problem for printers when selecting consumables. . In addition, due to the lack of paper and film separation technology in China, pre-coated films cannot be completely called an environmentally friendly process in China. In response to this situation, pre-coated products should reduce costs through mass production, so that market prices are getting closer to the needs of printers. At the same time, the research and development or introduction of the paper membrane separation technology should also attract the attention of relevant departments, in order to achieve environmentally friendly coating and rational development of the laminating process without being able to discard the laminating process.【Laminating Machine Supplier】It is a brand-new transfer technology that can cope with complex workpieces and is suitable for different materials. It also greatly increases the added value of products due to vivid patterns and vivid colors. This technology is a special chemical treatment film, after printing a certain color pattern, it is sent to the surface of the water, using water pressure to write the pattern evenly on the surface of the product, while the coated film is automatically dissolved, washed and baked. After drying, a layer of transparent protective coating is applied, and the product has a completely different visual effect.

Film Lamination and UV Coating

The printing technology continues to advance, the printing materials are constantly updated, the influence of various post-press processing conditions on the film is increasing, the printing quality standards and market demand are constantly increasing, which requires the film industry to change according to objective conditions. New quality technical standards for structural adjustment. At the same time, we should also look for other processes that can replace the film in time to reduce the pressure on the environment.【Thermal Lamination Machine 】In fact, in addition to the film coating process, UV glazing can also play a certain role in protecting and decorating the surface of the printed matter. The two are similar in many functions. Due to the relatively low cost of UV glazing, the development is relatively rapid, and the product is very attractive, so it also has a certain market share in some post-press processing fields. Some people who are optimistic about UV glazing technology even believe that this technology can be independently developed instead of laminating technology. In fact, this is just a wish of people. According to some printing companies that use UV glazing technology, UV glazing applications are mostly partial glazing. Local UV glazing can improve the grade of books, but in most cases, this partial UV glazing process is also This is done after the film is applied, and the previous film coating process must be a solvent-based film.


In addition, there is still a lot of deficiencies in UV glazing compared to film coating. Such as UV glazing protection, folding resistance, wear resistance, etc. are not as good as the film, there are limitations in many areas, 【 Film Lamination Machine 】such as packaging boxes; UV glazing also needs to put into printing equipment and UV curing equipment, and the film has Off-the-shelf equipment foundation and mature technology; in addition, some UV varnish will also volatilize odor during the coating process, which will affect the operator.Today's printing houses and publishing houses pay great attention to this process, and believe that UV glazing can replace the laminating process in book printing. But in general, UV glazing is still limited in many aspects, there are still many problems in the process, and it is impossible to completely replace the laminating process.

Thermal Film Laminating Machine

In this machine, the film is formed once, the glue has been applied to the consumables, the glue is melted by heating when the film is coated, and the film is bonded to the printed matter by pressure. This type of laminating equipment is cheap, easy to operate, and does not generate harmful gases during operation. [ Film Lamination Machine ] It is a trend in the development of laminating film. In today's society where environmental protection is increasingly concerned, it is believed that this technology will one day replace the pre-coated film. The main coating technology in the domestic printing industry. The disadvantage is that this technology is not very mature in China, and there are still some problems to be solved, such as: single-sided film curling (has a single-sided anti-curl machine, but the price is higher), the print with silicone oil is difficult to cover Membrane and the like. Widely used in short-run printing, digital fast printing industry.

The pre-coating laminator is a special device that combines printed matter with pre-coated plastic.[ Thermal Lamination Machine ] Compared with the coating type laminating machine, the biggest feature is that there is no coating and drying part, so the laminating machine is compact in structure, small in size, low in cost and easy to operate, with stable product quality.

Water Based Film Lamination Machine

The operation of this type of equipment includes three parts: sizing, drying and hot pressing. The operation is higher. The advantage is that the quality of the finished product is reliable. [ Automatic Lamination Machine ] It has a fatal disadvantage that the oily rubber will produce gas that affects human health, so this technology in developed countries such as Europe and the United States have been completely banned, water-based glue is more environmentally friendly than oil, and the cost of oil is relatively high.
Scope of application:
It is suitable for color film, packaging paper, soft sheet, soft rubber sheet and other laminated film, making it bright, colorful and waterproof.


Detailed Description:
1. The base and the wall are made of cast iron, which will never be deformed, ensuring that the accuracy will not be affected during the use and maintenance of replacement parts.
2. The rubber roller and the rubber roller are made by precision. [  Lamination Machine Manufacturer  ] The concentricity error of the roller surface is controlled within 0.01mm to ensure uniform coating and save glue dosage.
3. The hot composite steel roller precision mirror treatment, the precision of the laminated film is excellent.
4. Electronic automatic thermostat.
5. The hydraulic system is uniquely designed and stable.
6. Added to the roll paper feeding device, can be applied to the composite of the roll material. Water-based and oil-based dual-purpose machines can be customized according to user requirements.

                              Water Based Lamination Machine


Mechanical function:

1. It has a non-stop paper feeder to ensure continuous production. 
2. The large diameter pressing roller is used to effectively increase the production speed and ensure the smoothness of the composite product.
3. The powder removing mechanism combined with sweeping powder and powder compaction is used to ensure the powder removing effect.
4. Advanced drying tunnel structure ensures that the glue on the film can be dried quickly.
5. Adjustable disc rotary cutter ensures paper cutting.
6. The motor is controlled by frequency conversion, which is safe and reliable.

Guideline on How to Use the Lamination Glue

                               
                                      Single-side Film Lamination Machine


Correct use
The glue placed statically for a long time will cause delamination and should be stirred evenly before use.

Wrong use
After using layered glue, the remaining glue will appear non-sticky.

Optimum bonding time
After the glue is evenly coated and reaches the applicable amount of paper, the roller is properly applied to the temperature to achieve rapid drying and fitting.

Optimum placement temperature
After the best temperature bonding, the product should be placed in a room of 15-40 degrees Celsius to achieve the best fit, no rebound, no layer (less than 15 degrees Celsius will reduce the paste effect)

                           
                                       Double-side Film Lamination Machine

Factors affecting the quality of the film lamination

01
Print ink layer condition
Refers to paper properties, ink properties, ink layer thickness, graphic area and printed graphic density. [ Film Lamination Machine ] When the printed ink layer is thick and the image area is large, many paper fiber capillary pores are blocked, which hinders the penetration and diffusion of the adhesive, making the printed matter and the plastic film difficult to adhere, and delamination, foaming and the like are prone to occur.



02
environment humidity
Between the adhesive and the plastic film and the printed matter, as the relative humidity of the air changes changed the water content. Humidity-sensitive prints can cause internal stresses due to dimensional changes. For example, the longitudinal expansion ratio of the printed matter is 0.5%, and the longitudinal heat shrinkage of the BOPP film is 4%. If the water absorption of the printed matter is too large and the elongation occurs, and the internal stress is caused between the heat shrinkage of the film, the film product may be curled, wrinkled, and bonded. [ Fully Automatic Lamination Machine ] Not strong. In addition, in a high humidity environment, the equilibrium moisture value of the printed matter will also change, and a large amount of moisture absorbed from the air medium will be released from the surface during the hot pressing compounding process, stagnating at the bonding interface, and partially forming a non-adhesive bond. phenomenon. Moreover, the change in the equilibrium moisture value of the printed matter (moisture from the air medium or dehumidification into the air medium) occurs mostly at the edge of the printed matter, so that it forms a ruffled edge or a tight edge, and is not easily formed well with the film in the hot press composite. [ Automatic Lamination Machine ] The wrinkles are caused by the bonding, so that the production cannot be carried out smoothly.



03
temperature control
Heating can soften the film and bond the paper to the plastic film. However, the temperature is too high, the film is easy to break, which seriously affects the quality of the product. Therefore, measures such as fan cooling and turning off the heating wire should be adopted.

Brief Introduction of Industrial Film Laminating

The film coating is a process in which a plastic film is coated with a binder, and the paper printed product is heated and pressurized to bond it together to form a paper-plastic composite product. The film-coated printed product has a thin and transparent plastic film on the surface, and the surface is smoother and brighter, thereby improving the gloss and fastness of the printed product. The color of the graphic is more vivid, three-dimensional, and waterproof. Anti-fouling, abrasion resistance, folding resistance, chemical corrosion resistance, etc.[ Automatic Lamination Machine ]


Air bubbles caused by production processes. Mainly refers to the control of some process parameters, including composite pressure, coating temperature and composite temperature. If the composite pressure is too low, the rubber roller pressure should be increased appropriately.[ Lamination Machine Manufacturer ] The compounding speed is too fast, and the compounding speed can be appropriately lowered, or the temperature of the rubberizing roller can be increased to increase the fluidity of the adhesive. Air bubbles on the surface of the film caused by dust and impurities should improve the environmental sanitation of the production workshop.

The method of solving paper and plastic film separation

Analysis of the reasons that affect the separation of paper and plastic film

[ Thermal Film Lamination Machine] 

The reason for the influence of paper-plastic detachment, the smoothness, uniformity, water content of the paper, the performance of the plastic film, the thickness of the printed ink layer, the amount of auxiliary materials, the temperature and pressure during the paper-plastic composite, and the hygienic condition of the production environment And temperature, relative humidity, etc. will have a certain impact on the final result of paper-plastic composite!

[ Lamination Machine Manufacturer ]

The method of solving paper and plastic film separation:

1

The ink layer of the ink is too thick, causing penetration and diffusion of the adhesive, causing the paper to detach. The treatment is to increase the amount of adhesive applied and to increase the pressure.

2

When the ink layer is not dried or is not dried, the component of the residual solvent in the ink layer weakens the adhesive force to form a paper-like detachment. The treatment method is to re-compound after the product ink is dried.

3

The residual powder on the surface of the printed matter also hinders the adhesion of the paper to the plastic film to form a paper-plastic release. The treatment method is to mechanically and manually erase the powder on the surface of the printed matter and then recombine.

4

The operation process is not standardized, the pressure is too small, and the machine speed is fast, which causes the paper to detach. The treatment method is strictly in accordance with the process specification, and the pressure of the film is appropriately increased to reduce the machine speed.[ double side lamination machine]

5

The adhesive is absorbed by the paper and the printing ink, and the paper is detached due to insufficient coating amount. The adhesive should be re-formulated and the amount of glue applied should be determined according to the manufacturer's requirements.

6

The corona treatment of the surface of the plastic film is insufficient or exceeds the service period, so that the paper is separated from the failure of the treated surface. The plastic substrate should be corona or renewed in accordance with the corona standard of the film coating.

7

When a one-component adhesive is used, the paper-plastic detachment due to insufficient air humidity should be artificially humidified according to the humidity requirements of the one-component adhesive processing process.

8

Ensure that the adhesive is kept and used according to the manufacturer's requirements during the warranty period. If the automatic mixer is in good condition, the ratio is accurate, uniform and sufficient.

Film Laminating Process

Film coating refers to the transparent plastic film applied to the surface of the printed matter by hot pressing. After the film is covered, the film is smoother and brighter. The color of the graphic is more vivid. At the same time, it is also waterproof and antifouling. It can be divided into surface processing and forming. Hot stamping, glazing and other processing techniques; molding process. The film not only makes the surface of the printed matter wear-resistant, folding-resistant and chemically resistant. However, traditional plastic films are not degradable, difficult to recycle, and easily cause pollution. 

Therefore, in the major printing cities, environmentally friendly PET films are used to improve the laminating process. The film laminating machine manufacturers have also developed various excellent equipment for PET slitting (such as chain knife slitting) to complete the elegant upgrade in laminating process.