KT board is a kind of plate-like material made of polystyrene. The PS material particles are foamed into a board core and pressed by surface coating. KT board is light, not easy to deteriorate,and convenient for subsequent cutting and processing. It is widely used in advertising display, architectural decoration, cultural publicity walls,and packaging. The traditional KT board adopts film coating and board coating process, which has high labor and time cost. The difference is that UV flatbed printer brings different production methods to KT board processing.

At the earliest stage, KT board was divided into hot board and cold board. Now it is generally divided into PS film surface KT board, paper surface KT board, and PVC film surface cold-pressed KT board. KT board is widely used in indoor and outdoor publicity. Besides exhibitions, it is also applied in the construction and home decoration industry, such as KT board decorative painting. UV flatbed printer is a fantastic tool for printing decorative pictures, which is also suitable for KT board printing.

UV flatbed printers can print patterns directly on KT board. They save many traditional processes and significantly shorten the production time. They are especially suitable for small orders requiring changeable pictures and texts and can quickly respond to customer needs. In addition, the UV printer with a Ricoh nozzle and white color varnish scheme can also achieve oil painting like a three-dimensional relief effect.

For KT board printing, besides photo mounting and direct printing by UV flatbed printer, there are also devices with dual characteristics of UV curing and photo, such as “Mr. board”, which can also reach a printing speed of more than 40 square meters per hour. Of course, the needs of customers are always different. For advertising processing users requiring higher printing speed and printing needs of multiple materials and shapes, UV printers may have more advantages in versatility and capacity improvement.

The UV printing solution of KT board is to print patterns directly on KT board through UV flatbed printer. Through UV flatbed printer, processors can complete both large orders and small orders quickly. For users with small batch orders, delivery on the same day can be realized.

KT board UV flatbed printer adopts G5 nozzle, which can print 3D relief effect through the color configuration of color + white + varnish.

As one of the primary materials of the current media, KT board is suitable for medium and short-term advertising production with high-quality requirements and will not be deformed when used as poster board, writing board, promotion display board, etc. The solution of KT board UV printer not only brings different production modes for KT board advertising production but also gives advertising manufacturers a  new choice.

Foamboard, also known as foam core, is one of the most cost-effective and backing materials used in mounting art. It is made of polystyrene foam, covered with paper or plastic on both sides, making PS foam the core of the sandwich. This material is usually white, but the manufacturer also offers black or other colors. Product thickness is generally 1 / 8 or 3 / 16 inch (0.3 or 0.5 cm) thick. The normal size is 4x8ft.

Pins and pins can puncture the surface of the foam board. This material is light and robust. Foamboard is ideal for making large works of art or posters because it adds too little weight to the whole work. Its rigidity stabilizes paper art, but it is not the real archival material. Polystyrene foam will be decomposed over a long period, and the by-product of this decay may be acidic and accelerate the aging of its framed art.

Foam boards can be used as disposable bulletin boards. Foam panels can be purchased in large areas, making it the second-largest exhibition board for school projects and science exhibitions. By sticking the white artist tape to the connection on one side, three large boards can be hinged together to form a three-fold or triple display screen. Fabrics can be used in creative projects based on foam panels and can be perforated with pins or pins. Foam boards can make a good disposable bulletin board, which costs only a small part of the soft board. When there are too many pinholes on the surface to be reused, throw it away and buy a new board.

The surface of the foam board is smooth enough, and the dry-erase mark can also be used to make a temporary whiteboard. We can creat one piece of general indoor bulletin board/whiteboard via the easy-cutting by a razor. It accepts paint and felt tip marks, and the fabric can adhere to its surface. For these properties, foamed plastic boards have become the building materials chosen by modelers. If your promotion project needs a castle city model, or your action star pilot needs a space terminal, this material, a knife, paint, and glue can create background and props for your specific needs. People usually use Foam boards for model making.

Therefore, the foam board is widely applicable in advertising display and promotion, aircraft model, architectural decoration, culture and art, packaging, etc. In our daily life, we often use simple foam promotion boards, exhibition boards, corporate culture walls, or party-building walls to make foam panels.

PVC Wood Plastic sheet has better tensile strength, flexural strength, flexural modulus, and impact strength compared with other sheets. The reason is that there is a strong chemical reaction ability between lignin and PVC, that is, between proton donor and acceptor. In addition, the interaction between carbonyl groups on lignin molecules and hydrogen atoms on PVC molecules or between hydroxyl functional groups on lignin molecules and chlorine atoms on PVC molecules is conducive to the improvement of mechanical properties.

At present, the application of wood-based panels is mainly in the interior decoration and furniture industry. The wood-based panels used are mainly plates with urea-formaldehyde resin as the adhesive ( Such as particleboard, medium-density fiberboard, plywood, etc.). Compared with these traditional wood-based panels, wood-plastic panels mainly have the following advantages and characteristics:
Firstly, Urea-formaldehyde resin is not used in the production of wood-plastic composites. There is no release of formaldehyde adhesives. This formaldehyde-free product is in line with national environmental protection policy. They are really environmentally friendly materials for human health, which is incomparable to ordinary wood-based panels.

Secondly, PVC Wood Plastic Composites have characteristics of water resistance, wear resistance, corrosion resistance, moth resistance, self-extinguishing when leaving the fire. They have the processing characteristics of wood and plastic. Therefore, under different process conditions, the strength properties of Wood Plastic Composites will be significantly improved so that they can be used on occasions with high strength requirements.
Finally, wood chips, straw, waste paper, and other wastes can be used as lignin in Wood-Plastic Composites. Recycled waste thermoplastic resin can be used as plastic so as to achieve waste recycling. It has crucial environmental protection significance.

When using a UV flat-panel printer to print some materials, the problem of low adhesion of UV ink to a substrate is sometimes caused by the instantaneous drying of UV ink. This article is to study how to improve the adhesion of UV ink to substrate.

Corona treatment

It has been found that corona treatment is an effective method to improve the adhesion of UV ink! The positive and negative electrodes of the corona device are respectively connected to the ground and the induced air nozzle. The high voltage and high cycle wave is used to make the electric shock molecules eject from the induced air nozzle and accelerate to the positive electrode with high-energy free electrons. In this way, the polarity of the non-absorbent material can be changed. It increases surface roughness and strengthens the combination ability with the ink, finally reaches the purpose of achieving the proper UV ink adhesion and improving the adhesion fastness of the ink layer.

The surface tension stability of corona-treated materials is poor, and the corona effect will gradually weaken as time goes on. Especially in an environment with high humidity, the corona effect will reduce faster. If a corona-treated substrate is used, it must cooperate with the supplier to ensure the freshness of the substrate. Common corona treatment materials include PE, PP, nylon, PVC, pet, etc.

UV ink adhesion promoters

In many cases, cleaning the substrate with alcohol will improve the adhesion of UV ink on the substrate. If the adhesion of the substrate to UV ink is inferior or the product has high requirements for UV ink adhesion, the primer / UV ink adhesion promoter to promote UV ink adhesion can be considered.

After the primer is applied to the non-absorbent substrate, the adhesion of UV ink improves and achieves the ideal adhesion effect. Unlike corona treatment, chemical primer materials do not contain non-polar oil molecules, which can effectively eliminate the instability of the corona effect caused by the migration of such molecules. However, the application scope of primer is selective, and the result is better for substrates such as glass, ceramics, metal, acrylic, and pet.

UV ink curing degree

Generally speaking, when the UV ink is not fully cured, we can observe the poor adhesion of UV ink on the non-absorbent substrate. To improve the curing degree of UV ink, we can start from the following aspects:

1) Increase the power of UV curing lamps.

2) Reduce printing speed

3) Extend the curing time.

4) Check whether the UV lamp and its accessories work regularly.

5) Reduce the ink layer thickness.

Other methods

Heating: in the screen printing industry, it is recommended to heat the substrate before UV curing when printing on the substrate that is difficult to adhere. After heating with near-infrared light or far-infrared light for 15-90 seconds, it can strengthen the adhesion of UV ink on the substrate.

Varnish: if the UV ink still has adhesion problems on the substrate after adopting the above suggestions, a layer of protective varnish can be coated on the surface of the print.

Cutting: if there is only an adhesion problem during cutting, it is recommended to cut the substrate to the required size before printing. The cutting edge of the cutting tool must be sharp. A rotary cutter will cut better than ordinary straight blade scissors.

What is PUR hot melt adhesive?

I believe this question will confuse some people who have entered the furniture industry for a short time. As a professional processing manufacturer of PUR lamination, We would like to share with you what is PUR hot-melt adhesive, the conventional application and its use characteristic.

The full English name of PUR hot melt adhesive refers to reactive polyurethane hot melt adhesive. During the lamination process, the PUR adhesive will go through several chemical reaction. The Solid PUR is firstly heated and then contact the moisture in the air. After the chemical reaction and curing process, and It forms stronger bonding between the two different materials. PUR has a highly flexible and strong adhesion, and is suitable for a wide range of regional climates.

In the curing reaction of PUR hot melt adhesive, water molecules are involved, and the bonding effect of the finished product is excellent. It has high bonding strength for various non-metallic and special materials. It has the properties of irreversibility, temperature resistance and water resistance.

PUR is innocuous, it does not contain Benzen, Formaldehyde or solvents, and does not produce harmful substance release during lamination. It leaves no residue on the finished products.

PUR hot melt adhesive Lamination

PUR machine production line is suitable for laminating different materials on the surface of various plates. Its hot roll is coated with reactive hot melt adhesive (PUR) on the surface of the plate. The surface base material and the substrate are aligned and overlaid, and hydraulic back pressure is applied to achieve the bonding effect instantly. Its glue has high adhesion, cold resistance, high-temperature resistance, waterproof, environmental protection and other characteristics.

Application: At present, the conventional applications of PUR hot melt adhesive are as follows: Flat panel lamination, cladding layer and edge sealing.

Substrate material: PVC foam board, density board, multilayer board, solid wood board, wood plastic board, glass magnesium board, aluminum-plastic board, plywood, particleboard, etc
Surface laminate material: PVC film (high gloss, Matt), PP film, acrylic sheet, HPL, aluminum sheet, PET, PETG, wood veneer, etc.

Adhesive: Moisture-curing reactive polyurethane hot-melt adhesive

As the solvent-free adhesive, PUR will not volatilize and emissions any solvent during the whole compound process. Therefore, the long drying tunnel is unnecessary when using PUR. It is truly environment-friendly and non-toxic adhesive.

With the global awareness of environmental protection, many counties improve the regulations of environmental supervision. Over the last ten years, solvent-free laminating technology in the European and the North American market has occupied an important place; Meantimes, the demand for PUR lamination is also increasing year by year.
As a professional processing factory of PUR lamination, Skyline Composites provides the best and the most convenient solution for your laminated board project.

Please call and email us for more details.

In processing PVC wood plastic foam board, the equipment can be divided into the single-layer skin foam board production line and the three-layer coextrusion foam board production line according to the processing and board types. According to the production process, it is divided into the twin-screw extrusion and the single screw extrusion.

(1) Single-layer skin foam board production line and three-layer coextrusion foam board production line

The single-layer skin foam plate production line adopts one main extruder to directly squeeze into the die for extrusion foaming molding, which has simple production process control and convenient equipment disassembly and cleaning.

The three-layer coextrusion foam plate production line adopts two extruders, one is the main extruder, and the other is the auxiliary extruder. The two extruders are placed at a certain angle. The auxiliary extruder extrudes the melt, which is evenly distributed to the upper and lower layers of the melt of the main extruder through the die distributor. The two non-foaming hard surfaces are obtained through die extrusion and cover the surface of the high foaming core composite plate products. It features large surface hardness, high core filling, high foaming, and low cost. But at the same time, its disadvantages are distinct. The production process is complex, the control requirements of the compound layer process formula are accurate, and the equipment disassembly and cleaning are difficult.

(2) Single screw extruder and twin screw extruder

The production process determines whether a single-screw extruder or twin-screw extruder is used in production. The single-screw extruder has one more granulation process than the twin-screw extruder in terms of product quality. The melt plasticization uniformity and the mixing of various additives are more uniform, and the product quality is better than the one-step twin-screw direct powder extrusion. In terms of the production process, the single-screw extruder has more granulation steps, which means that one more extruder increases energy consumption, workforce, and material resources, and the production cost is much higher than that of a twin-screw extruder. In terms of production speed, the twin-screw process has few steps and fast extrusion speed, and the efficiency is much higher than that of the single screw process. With the continuous improvement of the wood-plastic formula and the constant optimization of the twin-screw structure, the plate quality produced by the twin-screw has reached the level of single screw production.

Due to the characteristics of low energy consumption and high efficiency of twin-screw extruder, twin-screw extruder has completely replaced single screw extruder in the production of PVC wood plastic foam board.

Three-layer coextrusion foam board production line
Three-layer coextrusion foam board production line

PVC wood plastic foam board is a PVC core layer foam board with continuous hard skin and closed cell structure in the core, which is chemically foamed by the “Celuka” method. It is a new structural plate with uniform thickness made of various mixed PVC raw materials, wood fibers, and functional additives through a special wood plastic extruder at a specific temperature and pressure. Its skin is shaped by the sudden cooling of the external mold to form a new plate with non-foaming skin and foaming structure in the core layer.

Wood-plastic composites have a wide range of applications. Wood-plastic composites can be used to replace wood or wood materials.
Building structural materials: indoor and outdoor planks, fences, building templates, moisture-proof partitions, stair boards, handrails, door and window frames, water buildings, road boards, etc
PVC wood plastic foam board has been successfully used as building formwork in urbanization projects, square tunnels, and other projects.

Automobile manufacturing: door trim panel, bottom plate, seatback, instrument panel, armrest, seat, base, top plate, etc.

Logistics: Transportation pallets and export packaging pallets of various specifications, warehouse bedding plates, various packaging boxes, transportation glass shelves, etc.

Gardening: outdoor tables and chairs, courtyard armrest and decorative board, flower box, open-air floor, waste box, etc.

Interior decoration: various decorative strips, decorative plates, mirror frame strips, curtain rings and decorative parts, movable shutters, ceilings, wall panels, etc

Wood-plastic composites can also be used in the packaging industry, furniture manufacturing, composite pipes, railway sleepers, etc. it is believed that the application field of wood-plastic composites will be further broadened in the coming future.

The Skyline Composites Blog Center.
Homepage: www.skylinecomposites.com
Email: export@skylinecomposites.com

Structural components of both

Expanded Polystyrene foam board, also known as foam board and EPS board, is a white object heated and molded by heating polystyrene beads containing volatile liquid foaming agents after heating.

Extruded Polystyrene (XPS) Foam Board(KT board) is a new type of material formed by foaming chemical particles into board core and laminating on the surface. The main component also contains polystyrene. Common production processes can be divided into cold lamination and hot lamination. The products produced by these two different processes are called cold laminated board and hot laminated board. The popular colors of KT board core are white and black. In fact, they also have red, blue, yellow, green, and other colors.

Advantages of both

  •  Expanded polystyrene (EPS)foam board

The Expanded polystyrene (EPS)foam board has the advantages of low density, high recovery rate, and independent bubble structure. Secondly, the surface water absorption is low, and the anti-permeability is good. And acid, alkali, salt, oil, and other organic solvent corrosion resistance, excellent aging resistance. Furthermore, it does not flow at high temperatures and does not crack at low temperatures.

1. Protect the main structure of the building and extend the service life of the building. External insulation is to place the insulation layer outside the structure, which reduces the stress caused by structural deformation caused by temperature change, and reduces the corrosion of harmful substances in the air and ultraviolet rays to the structure.

2. Effectively eliminate the “thermal bridge.” In the past, internal insulation was used, “thermal bridge” was difficult to avoid, while external insulation effectively prevented the generation of thermal bridge and condensation.

3. The moisture temperature of the wall can be improved. Generally, the steam insulation layer is required for the internal insulation, while the temperature permeability of the external insulation material is much stronger than that of the main structure. Generally, condensation will not occur inside the wall. The temperature of the whole wall body of the structural layer is increased, which further enhances the thermal insulation performance of the wall.

4. It is conducive to the stability of room temperature. The external wall external insulation is adopted. Because the structural layer with large heat storage capacity of the wall is inside the wall, it is conducive to the stability of room temperature.

5. Increase the use area of the house. It can avoid the damage of secondary decoration to the insulation layer.

  • Extruded Polystyrene (XPS) Foam Board /(KT board)

1. The bubbling of hot laminated foam board is mainly caused by short ripening periods and too thin laminate film. The bubbling of cold laminated foam board is usually caused by poor gluing or too long direct sunlight exposure during production.

2. Price comparison: the low price of hot laminated foam board is mainly due to the short production period, less material, and large production capacity, while the cold laminated foam board is just the opposite.

3. There are many kinds of surfaces on KT board, such as PS surface, paper surface, and back glue surface.

4. KT boards are mostly used in indoor advertising. The general requirement for boards is to ensure no blistering and deformation.

Application fields of both

Expanded polystyrene (EPS)foam board is mainly used for building walls, roof insulation, composite board insulation, cold storage, air conditioning, vehicle, ship insulation, floor heating, decoration, and carving.

Extruded Polystyrene (XPS) Foam Board (KT board)

 is mainly used in the advertising industry, logo industry, architectural decoration industry, culture, art and packaging industry, printing industry,  and cosplay props.

Although Expanded polystyrene (EPS)foam board and Extruded Polystyrene (XPS) Foam Board (KT board) are made of expandable polystyrene beads, they also have different structures due to different processes. Before use, we must understand the difference between the two to avoid confusion.

The Skyline Composites Blog Center.

Homepage: https://www.skylinecomposites.com

Email: export@skylinecomposites.com

  1. PVC resin powder
    It is the primary raw material, foaming base material, producing PVC foamed sheet generally adopts Model SG-8 PVC resin. When processing, the gelatinization speed is fast, the processing temperature is relatively low, the product quality is stable, and the density is easy to control. In order to improve product quality and strictly control the fluctuation of product density and thickness, SG-8 PVC resin is often used in the production of free foam and Celuka foam PVC sheets.
  2. PVC stabilizer
    In order to fully plasticize the material during the process of PVC foam board, the material is often at high temperatures. In addition, the foaming agent also produces decomposition heat in the process of decomposition. These factors require that the stabilizer have sufficient thermal stability to ensure the quality of products and long-term stable production.
  3. Foaming regulator
    It is made of methyl methacrylate, ethyl acrylate, butyl acrylate, and styrene. Its molecular structure is a core-shell structure. As a processing aid in the formulation system, it can effectively reduce the plasticizing temperature, promote the plasticizing effect, improve the plasticizing efficiency, improve the melt strength, reduce the melt pulsation, prevent the melt fracture, and significantly improve the surface smoothness of products. The selection principle of the foaming regulator includes plasticizing speed, melt strength, and melt fluidity. Because of different process conditions, foaming regulator models should be selected according to the various product property characteristics, such as foamed sheet, thick foamed sheet, thin foamed sheet, wood plastic foamed sheet, etc. They can ensure the uniformity of the melt and good board surface quality. Besides that, we need to choose good quality internal and external lubricants and add enough heat stabilizers to the formula.
  4. Foaming agent
    The foaming agent is the material that makes the object material into a cell structure. It can be divided into the chemical foaming agent, physical foaming agent, and surfactant. It is mainly used to control the density and measurement of PVC foaming boards.
  5. Filler
    In the formula system, the general dosage of light calcium carbonate is 10 ~ 40 phr. Filler can not only be used as a foaming nucleating agent but also reduce the material cost. However, excessive dosage of light calcium carbonate will make the cell uniformity worse, then affect the appearance and product quality. It finally makes the product density difficult to control, increases the total cost, and reduces the product hardness.
  6. Pigment
    It is used for coloring the board, mainly in white, red, yellow, blue, green, black, gray, etc.

PVC foam board can be used as furniture board, and its development trend is more and more popular in the world.

A wide range of laminated PVC foam board materials can be used for both modular furniture and kitchen cabinet production.

PVC board is used in kitchen decoration

PVC board has excellent chemical stability, corrosion resistance, high hardness, high strength, anti-ultraviolet (anti-ageing), fire retardant (with self-extinguishing), reliable insulation performance, smooth surface, tiny water absorption rate, no deformation, easy processing and other characteristics.

PVC foam board has a lightweight, smooth surface, good visual effect for furniture, and the strength of the material is improved after foaming, which can replace the wood board and extend service life. PVC foam board is generally used as the substrate material of furniture board. Different kinds of decorative materials are laminated on the substrate surface via PUR hot-melt adhesive machine, such as PVC decorative film, PET film, HPL, aluminum sheet, PETG film, PP film, etc. In addition, it is necessary to use an edge banding strip to seal the board edge after cutting. The finished board adds more durability, diversity and aesthetic result after lamination.

PVC board is used in decoration

The density of PVC board used in the furniture is not less than 0.45 g/cm3, and the ideal standard density is 0.50 g/cm3. Meanwhile, the 0.60 g/cm3 density of PVC board is also used in famous furniture brands. Using the 0.60 g/cm3 density coextrusion PVC foam board to make PVC bathroom cabinets, and because of its waterproof advantages, the product’s durability can reach more than 20 years.

In the past, many furniture factories chose PVC Cekuka foam board to make PVC bathroom cabinets. The reason is that the cost of PVC co-extruded board is higher than that of PVC Celuka board. But now, the production technology and formula have become mature. Some physical performance is much better than that of PVC Celuka Board. PVC Coextrusion Board can be a high-end product of PVC foam board.

Advantages of PVC furniture board:
Easy to install
Zero maintenance: