Classification of laminating machine

First, instant coating

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. It has a fatal disadvantage that the oily rubber will produce gas that affects human health, so this technology is 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.

1. Scope of application:

It is suitable for color film, packaging paper, soft sheet, soft rubber sheet and other laminating film (over film), making it bright, colorful and waterproof;

2. Detailed description:

1. The base and the wall are made of cast iron, which will never be deformed, 【 Fully Automatic Lamination Machine 】ensuring that the accuracy will not be affected during the use process and repair and replacement of parts;

2. The rubber roller and the rubber-limited roller are made by precision, and the concentricity error of the roller surface is controlled within 0.01mm to ensure uniform coating and save glue dosage;

3. hot composite steel roller precision mirror treatment, the film finished product is excellent;

4. electronic automatic thermostat;

5. hydraulic system unique design, precise and stable;

6. Adding a roll paper feeding device, which can be applied to the composite of roll materials;

7. Water-based and oil-based dual-purpose machines can be customized according to user requirements.

Second, pre-coated

The machine film is formed once, the glue used has been coated with glue, the glue is melted by heating when the film is coated, and the film is bonded to the printed matter by pressure. The filming device is cheap, easy to operate, and is operated.【 Film Lamination Machine 】The generation of no harmful gases is a trend in the development of 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 and become the main film-coating technology in the domestic printing industry. The 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), and the printing with silicone oil is difficult to cover. Widely used in short-run printing, digital fast printing industry.

Use precautions of Laminating Machine

1. The power switch box must be a power switch box with a ground wire to ensure safe use of electricity;

2, the film coating workshop is best clean room to ensure the film coating effect;

3. The dust on the equipment and the rubber roller must be completely removed before the film is coated;

4. When the laminating machine is running, it is forbidden to put your fingers into the two rollers to avoid getting the hands; the temperature of the press roller of the machine is high, don't touch it with your hands to prevent burns;

5. Do not disassemble the door panel of the chassis while the machine is running, so as to avoid electric shock or injury to the gear;

6. When performing maintenance or maintenance inspection, it must be ensured that the main power supply is cut off and no maintenance or repair is required.【 Water Based Lamination Machine 】The electrical system of the machine should be well insulated to prevent moisture. When using the machine, the power should be cut off to prevent accidents.

7. Disassemble the heating pipe during maintenance or repair, please handle it with care, so as not to damage the heating pipe;

8. During inspection or maintenance, it is found that the oil flowing out under the bearing should be wiped out to prevent oil from flowing into other parts to affect the normal operation of the machine;

9. Do not operate more than one person when debugging the equipment. The operator must ensure that no one touches the moving parts;

10. Every time you turn on the machine, wipe off the surface dust of each roller, and check whether the surface of each roller of the machine is clean. If the machine malfunctions or abnormally sounds, you should analyze the cause and give it a rule.【Laminating Machine Supplier 】The standby device can continue to use after everything is normal. machine;

11. When the machine is scrubbed, it should be turned on at a low speed. It should be scrubbed in the correct position to prevent the cloth in the hands of the two rollers from being rolled.

12. It is strictly forbidden to place any tools, devices and sundries on the machine;

13. 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.

Will UV varnishing replace the pre-coated film lamination process ?

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. 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, 【Laminating Machine Supplier】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, 【Lamination Machine Manufacturer】 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.

Pre-coated Film Lamination is the Developing Trend

In China, I think there are four important reasons for the comprehensive replacement of pre-coated films: The first reason is that after 12 years of development, the whole industry has already recognized the pre-coated film, the pre-coated film is of good quality, and the pre-coated film. Environmental protection, which is recognized by the entire printing industry.

Now everyone knows that the industry is aware of pre-coated film, which is a very important point; the second point is the formation of industrial clusters.【Water Based Lamination Machine 】After 12 years of development, I believe that there are currently 30 manufacturers of pre-coated films in China. The third important factor is the cost reduction due to the improvement of industrial clusters and industrial technology. The original pre-coated film has three sentences, one sentence. It is good quality, one sentence is environmental protection, and one sentence is expensive. Many manufacturers use our products to proof, and do not produce after the completion of the test. Because he costs a lot. But today, the pre-coated film is already not expensive, and the pre-coated film is now flat with the solvent-based water-based film.The reduction in film cost is one reason for the overall replacement of the precoat film. Another important basis is the policy. 【Fully Automatic Lamination Machine 】A series of national policies will play an important role in promoting the development of pre-coated films, especially green printing.

The global market share is like this. According to the statistics of the National Press Center in 2009, the US pre-coated film has reached 95%, Japan has reached 70%, Europe has reached 60%, South Korea has reached 50%, and China in 2009. In April, the pre-coated film only accounted for 10%. China Information Center statistical pre-coating film accounted for 10%, water content accounted for 21%, solvent type accounted for 69%, today the number is greatly reduced, today water includes PUR glue and so on, and today's pre-coated film is not 10% It is also highly developed. This is 2009, because we want authoritative data. 【Automatic Film Laminating Machine 】This standard rose to the national standard in 2010, and it is clear in the standard that there are no contaminated items in the laminating machine. In particular, the signing of the green environmental protection agreement in 2010 will further promote the comprehensive replacement of the pre-coated film.   

Therefore, in order to develop the green and digital development of China's printing, and for the sake of national health, it is necessary to jointly promote the pre-coating film to be a comprehensive replacement for the benefit of the people.

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.

Instant Water-based Film Laminating Machine

Characteristics of instant coated products

Thermal Lamination Machine

(1) It is prone to foaming and film detachment. In large-area solid printing or high humidity working environment, foaming and film removal are particularly serious.
(2) The surface of the product often produces bright spots or fog points with different gloss.
(3) The product is prone to curling. If the pressure is too high when the glue is applied or the temperature is too high during drying, 【 Manual Lamination Machine 】 the curling phenomenon is more serious.
(4) Chemical substances such as organic solvents will volatilize into the atmosphere during filming, causing environmental pollution and even causing fires.


Characteristics of pre-coated film products
(1) The film-forming product using the molten pre-coating film does not exhibit foaming and film peeling, and the product has a long service life.
(2) The film-coated product using the solvent-evaporable pre-coating film may have a large thickness in the printing ink layer, where the folding, die-cutting, and indentation pressures are relatively large, or in a high-temperature environment, the film may be released and foamed. phenomenon.
(3) The solvent-evaporable pre-coating film easily adheres to impurities such as dust during production, 【Film Lamination Machine 】thereby affecting the surface effect of the film-coated product.
(4) The film product is basically free from curling.
It can be seen from the above that the pre-coating film coating process, especially the molten pre-coating film coating process has the advantage that the coating film coating process cannot match, and is an inevitable choice for the future film coating industry.

Short Introduction of Thermal Film Laminating Machine

Such kind of laminating equipment does not need adhesive heating and drying system, the laminating process greatly simplifies the laminating process, and the operation is very convenient. It can be used with the booting machine, and has great production flexibility, no solvent smell, no environmental pollution, and more importantly, it can be completely.[ Thermal Lamination Machine ] Avoiding bubbles, delamination and other failures, the finished product has extremely high transparency, and has broad application prospects and promotion value.


The pre-coated film structure is composed of a substrate and a glue layer. The substrate is usually a PET film and a BOPP film. From the viewpoint of material cost and processing technology, most of the pre-coated film substrates are made of BOPP film and have a thickness of 12-20 micrometers. The thickness is 5-15 microns. [ Automatic Thermal Lamination Machine ] According to different processing equipment and process conditions, different thicknesses of glue layer are selected, and the glue layer is divided into hot melt adhesive and organic polymer low temperature resin. The difference between the two is that the hot melt adhesive is made by blending and modifying several materials of the main adhesive resin, the tackifier and the modifier, and the organic polymer resin is a single polymer low temperature copolymer.


Pre-coated film laminating machine
The pre-coated film laminating machine is the least investment and the best film laminating equipment. It is because the pre-coating laminating machine adopts an environmentally-friendly laminating process and operates.Simple, low investment, easy to use, whether it is mass production, or a small amount of film, it can be used easily, and is widely used in the market.The laminating machine is a small laminating machine.[ Automatic Lamination Machine ] Therefore, the market potential of small laminating machines is huge, and products processed by laminating machines must have strong products.Market Competitiveness. We develop and sell a series of small laminating machines to bring the most affordable, most direct and most convenient services to the vast number of users.

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.

Film inspection before running the semi-automatic laminating machine

After the semi-automatic laminating machine is adjusted, the pre-processed printed matter is fed into a paper feeding mechanism for lamination, and samples are taken for inspection. Before the film is covered, a small amount of printed matter is used for inspection to avoid a large amount of waste. [  Semi automatic lamination machine  ] After the test is passed, large-scale production can be carried out.


The film inspection method is as follows:
1. 
The semi-automatic laminating machine peels off the corner of the sample film which is completed by the film in the width direction, presses the paper, tears all the width direction, and after all tearing and tearing, if the surface of the printed matter is imprinted with the rubber layer The transfer of the fibers of the paper to the film indicates that the printed matter adheres well to the film and is a qualified product.

2.
Semi-automatic laminating machine put the coated sample into the drying tunnel, baking at 60 ~ 65 degrees Celsius for about 30 minutes, if there is no foaming, no delamination, no wrinkles, is a qualified product. [ Manual Lamination Machine ] The film peeled off after baking should not be separated from the paper.

3. 
The semi-automatic laminating machine takes the sample into cold water for 1 hour and then takes it out. If the plastic film and the printed matter are not separated, it is a good product.

4. 
The semi-automatic laminating machine puts the sample on the creasing machine and presses it. If the concave and convex parts are not delaminated, it is a good product.

How to properly store white glue ?

                                 
                                Thermal Lamination Machine


01
Store before opening
Avoid glue exposure, rain (will reduce glue storage time, reduce stickiness)
Keep the room temperature at 15-25 degrees Celsius (storage temperature below 8 degrees Celsius will reduce the glue adhesion, below 4 degrees Celsius will lose the viscosity of the glue).

02 
Stored after opening
Do not infiltrate other substances into the glue bucket, otherwise local clumping, discoloration and deterioration will occur. [ Automatic Thermal Lamination Machine ] There is no need to add water to adjust the quality, and the addition of water will reduce the bonding strength of the glue, so the paste effect will not be achieved. Seal the plastic bucket and plastic bag immediately after use according to the amount until the next time you use it again. 

03
Storage after use
Clean the rubber bucket and plastic bag mouth and seal them intact, so as to prevent the dry film of glue remaining in the mouth of the barrel or the bag from falling into the glue, thus causing granulation. If it is not sealed, the glue will peel.
The pumping pump is immediately pumped into clean water to avoid accumulation of residue and gelation after solidification, which may cause blockage and affect production and use.

Development trend of film lamination

The paper after the film lamination process is unrecoverable and becomes a white pollution, and toxic substances such as toluene and water are volatilized during the film coating process, which impairs people's health. Today, advocating "protecting the environment and protecting resources", the plastic film coating process has been eliminated in Europe and the United States, and European and American countries have even refused to import various packaging materials with plastic film. [ Thermal Lamination Machine ] Although there are water-based plastic film coating processes and hot-melt pre-coating film dry plastic compounding processes, the former still fails to solve the problem that the film printing waste cannot be degraded and cannot be recycled. The latter requires a large amount of heat in the production process and is discarded. The material needs to be separated in paper and plastic at 60 ° C, and the cost is high.



With the improvement of environmental awareness, new scientific and technological achievements will eliminate the old process products, so that the film process will undergo qualitative changes. "Non-toxic, harmless, green and environmentally friendly" naturally becomes an inevitable development trend of the film coating process. In addition, the glazing process is therefore optimistic. Glazing is a method of coating, spraying or printing to add a colorless transparent coating on the surface of the printed matter, that is, UV varnish. After calendering and drying, the gloss of the surface of the printed product is increased, and the stiffness is also improved. [ Thermal Laminator ] At the same time, the printed waste after glazing can be recycled or decomposed by itself, and does not pollute the environment. Therefore, glazing is a processing technology with great development potential, and it is possible to gradually occupy the plastic coating process market. Although the dilute machines used in oil glazing and alcohol glazing on the market are toluene and alcohol, respectively, which are harmful to the human body and unfavorable to environmental protection, water glazing has gradually become the mainstream of glazing process.[ Lamination Machine Manufacturer ] The water-based UV glazing process that has been developed so far is an ideal environmentally friendly glazing process and the development direction of glazing process in the future.

Commonly Used Lamination Film Are ?

Commonly used plastic films are: polyvinyl chloride (PVC), polypropylene (BOPP) and polyester (PET) films. Among them, BOPP film (15-20pm) is flexible, non-toxic, high transparency and low price, and is an ideal composite material in the film coating process. [ thermal lamination machine ]


Depending on the properties of the film itself and the purpose of use, the thickness of the film is preferably between 0.01 and 0.02 mm. It must be treated by corona or other methods. The surface tension of the treated surface should be 4 Pa, so as to have better wettability and adhesion. The corona treatment surface should be uniform and the transparency should be as high as possible to ensure the best definition of the covered print. [ thermal laminator ] The transmittance of PET is generally 88-90%, and the transmittance of other films is usually between 92-93%. The film needs to have good light resistance, is not easy to change color under long-time illumination, and the geometric size is stable.


Since the film is in contact with a solvent, a binder, an ink, etc., it must have a certain chemical stability. The appearance of the film surface should be flat, without unevenness and wrinkles, and the film is required to have no bubbles, shrinkage holes, pinholes and pitting. Due to the limited adjustment ability of the laminating machine, it is also required that the rewinding is neat and the two sides are elastic and uniform to ensure uniform coating.[ lamination machine manufacturer ] Of course, the cost is low.

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.

Why air bubbles occurred during the lamination ?

The viscosity of the adhesive is also an important cause of air bubbles. 
[ water based lamination machine]


Generally speaking, the viscosity of the adhesive is related to the molecular weight of the adhesive, the plasticizer and the type of the diluent, and the adhesive generally has a high viscosity and a poor fluidity at normal temperature, so in order to lower the viscosity and improve the fluidity, it is required to be higher in the compounding. Insulation at temperature. The higher the temperature of the two-component adhesive, the shorter the mixing and storage time, and the larger the ratio of the main agent and the curing agent, the greater the viscosity of the adhesive, the more unfavorable the formation of bubbles, and the more easily the bubbles are formed. Bubbles of the same size, low-viscosity glue can be eliminated, and high-viscosity glue may not work because the high-viscosity gel has a large molecular weight and poor leveling.[sheet lamination machine]

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.