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Advertising light box uv ink screen printing machine

Screen printing blister is based on the original manuscript, selecting the plate making method and printing process and determining what printing materials should be used. After the printed hard plastic sheet is heated and softened, it is vacuum-adsorbed to the surface of the mold and formed after cooling.

Process flow plate making - screen making - proofing - screen printing sheet - cutting - sheet fixing - heating - forming - demoulding - edge removal - finished product
The characteristics of screen printing can be summarized as follows:
① Screen printing can use many types of inks. Namely: oil-based, water-based, synthetic resin emulsion type, powder and other types of ink. The ink used for screen printing blister is quite special. It must be able to withstand the high temperature of blister, and must be safe, reliable, and adaptable. It must have obvious advantages from an environmental and quality perspective. Use it to print The product will not be cracked.
②The layout is soft. The screen printing layout is soft and has a certain degree of elasticity. It is not only suitable for printing on soft items such as paper and cloth, but also suitable for printing on hard items such as glass, ceramics, etc.
③The printing force of screen printing is small. Since the pressure used during printing is small, it is also suitable for printing on fragile shopping objects.
④The ink layer is thick and has strong coverage.
⑤ It is not limited by the surface shape and area size of the substrate. As can be seen from the above, screen printing can not only print on flat surfaces, but also on curved or spherical surfaces; it is not only suitable for printing on small objects, but also suitable for printing on larger objects. This printing method has great flexibility and wide applicability.
1. Blister molding can only produce products with relatively uniform wall thickness (generally the chamfers are slightly thinner), and cannot produce plastic products with widely varying wall thicknesses.
2. The wall thickness of blister molding is generally within the range of 1 to 3mm or thinner (the most commonly used thickness of blister packaging sheets for small packaging is 0.15 to 0.25mm)
3. The stretch degree of blister-molded products is subject to certain restrictions. The diameter-to-depth ratio of blister-molded plastic containers generally does not exceed 1, and in extreme cases it shall not exceed 1.5.
4. The dimensional accuracy of vacuum molding is poor, and its relative error is generally more than one percent.
Scope of application
Silk screen blister is widely used in daily consumer goods, media and entertainment, hardware tools, educational supplies, lighting, handicrafts, IT electronics, stationery, sporting goods, electric toys, retail displays, automobiles, cosmetics and dozens of other industries.
Production equipment
Screen printing blister equipment mainly includes: wrist punching machine, air suction screen printing machine, punch press, vacuum thermal blister machine

Screen printing is to stretch silk fabric, synthetic fiber fabric or metal mesh on a screen frame, and use manual carving of paint film or photochemical plate making to make a screen printing plate. Modern screen printing technology uses photosensitive materials to make screen printing plates through photographic plate making (so that the screen holes in the graphic and text parts of the screen printing plate are through holes, while the screen holes in the non-graphic and text parts are blocked. (live) oil paintings, prints, posters, business cards, binding covers, product packaging, product signs, printed and dyed textiles, glass and metal and other flat carriers, etc.

constitute:

Screen printing plates, squeegees, inks, printing tables and substrates.

Types of screen printing ink:

1. Inks for fabrics: water-based ink, oil-based ink, etc.

2. Ink for wood: water-based ink, oil-based ink.

3. Ink for metal: special ink for different metals such as aluminum, iron, copper, stainless steel, etc.

4. Ink for glass ceramics: ink for glass instruments, glass handicrafts, and ceramic vessels.

5. Ink for plastics: ink for polyvinyl chloride, ink for styrene, ink for polyethylene, ink for acrylic, etc.

Today’s more complete logo screen printing process:

The net has been stretched - degreasing - drying - peeling off the film base - exposure - development - drying - plate repair - sealing the net. It sounds complicated, but in fact the most basic principle is that the ink is transferred to the substrate through the mesh of the graphic part through the squeezing of the scraper during printing, forming the same graphic and text as the original, which is the effect we see. .

Characteristics of screen printing

1. Strong printing adaptability

The three traditional printing methods of flat printing, embossing printing and gravure printing can generally only print on flat substrates. Screen printing can not only print on flat surfaces, but also on curved, spherical and concave-convex surfaces. On the other hand, screen printing can not only print on hard objects, but also print on soft objects, and is not limited by the texture of the substrate. In addition, in addition to direct printing, screen printing can also be printed using indirect printing methods as needed, that is, screen printing is first printed on a gelatin or silicone plate, and then transferred to the substrate. Therefore, it can be said that screen printing is highly adaptable and has a wide range of applications.

2. Strong three-dimensional sense and rich texture

Rich texture The ink layer thickness of offset printing and embossed printing is generally 5 μm, gravure printing is about 12 μm, the ink layer thickness of flexographic (flexographic) printing is 10 μm, and the ink layer thickness of screen printing far exceeds the above-mentioned ink layer thickness. , generally up to about 30μm. Specially used for thick screen printing of printed circuit boards, the thickness of the ink layer can be up to 1000μm. Braille is printed with foaming ink, and the thickness of the ink layer after foaming can reach 1300μm. The thick layer of screen printing ink makes the finished product rich in texture and strong in three-dimensionality, which is unmatched by other printing methods. Silk screen printing can not only print in single color, but also can print in color and screen color.

Silk screen concave and convex effect

3. Strong light resistance and bright color

Since screen printing has the characteristics of missing printing, it can use various inks and coatings. Not only slurries, adhesives and various pigments can be used, but also pigments with coarser particles can be used. In addition, the preparation method of screen printing ink is simple. For example, the light-fast pigment can be directly put into the ink for preparation, which is another major feature of screen printing.

Silk screen bright silver effect

4. Large printing area

Generally, the maximum area size printed by offset printing, embossed printing and other printing methods is the full sheet size. If it exceeds the full sheet size, it will be limited by mechanical equipment. Screen printing can be used for large-area printing. The maximum size of today's screen printing products can reach 3m×4m or even larger.

One flower, one world, one leaf, one Bodhi. The seemingly simple screen printing machine actually has a lot of professional knowledge hidden inside. The completion of each component is the embodiment of the "craftsman spirit" of TAMPRINTER people and the ultimate pursuit of quality and effect.