Plexiglass and carving of plates (top)

Crystal clear, colorful plexiglass material is an excellent carrier for online art advertising, and is also a good material for the production of art plates and craft display racks. Therefore, it has been popular among advertising producers for decades.
The plexiglass material is a member of the large family of plastics. The scientific name is polymethyl methacrylate (PMMA). It is a thermoplastic material with high hardness, good toughness, both adhesion and screen printing. It is not only worth hundreds of times in advertising and manufacturing, but also an irreplaceable component manufacturing material in the fields of industry and military. Its color characteristics and main uses are shown in Table 1.
First, several links should be paid attention to in screen printing plexiglass labels. Printing inks should be made of high-gloss, friction-resistant organic glass inks. In particular, matte inks should not be used for surface printing because the ink is not resistant to rubbing and the color is not bright. For outdoor light boxes and signage, imported inks with good lightfastness should also be used to resist strong light and prolong their service life.
2. Printing film can not be replaced by laser print or sulfuric acid paper, must be positive manufacturers or anti-yang film output professional manufacturers, each output, to output a blank film with positioning crosshair. When printing, first use the blank cross-hair film with transparent tape fixed on the glass plate, other colors of the film should be based on this, so that the drying out of the screen can be consistent.
3. For fine screen production, high resolution imported sensitized adhesives and imported high-tension low-stretch screens must be used. Such as Japan's Murakami company's SBQ single liquid emulsion, NBC wire and other brand-name products, although the price is more expensive than domestic, but produced a clear screen, graphic edges neat, while also guaranteeing multi-color overprint or four-color Accuracy of location when screen printing. If the text is too small and the lines are very fine, a 350-mesh screen can be used. At the same time, it should be equipped with a smooth, smooth, imported ink or photocurable ink.
4. Screen printing and color matching is generally based on the experience of the printer. Since the number of screen meshes used in each batch is different, the thickness of the photosensitive film is not the same, which often results in the color cast of the printed products. The color of the ink in the barrel is not accurate. Seeing truth after the scraping of the upper plate" explains this truth. Therefore, each batch of work must be printed and printed out with a stenciled screen. After the customer confirms that it is the same color as the original, it can enter the formal printing.
5. Large-format drawings must be printed with screen printers, and small-format sheets can be printed with suction stamp pads. During the printing process, you should keep the same:
a. Multi-color screen distance should be consistent;
b. Squeegee speed is consistent;
c. The squeegee pressure remains the same;
d. Ink consistency remains the same;
e. The hardness of the size scraper remains the same when hand scraped;
f. The temperature and humidity of the printing shop remain the same.
6. The double-sided organic plate label shall be made of a transparent plate, and the anti-printing method shall be used. After the graphic and text are printed, a layer of background color shall be overprinted, and the adhesive between the two electrodes must use a silk printable adhesive. Generally 80 to 100 mesh nylon mesh, water-based photosensitive adhesive making screen printing, can be printed on one side, can also be printed on both sides, when the color of the printing ink can be translucent (about 20 ~ 30min) will be bonded together on both sides of the alignment . The bond line is not affected by mechanical polishing.
7. When multi-color printing, in order to ensure the accuracy of overprinting, under the premise of keeping the size of the graphic version unchanged, the size of other versions can be appropriately scaled (the zooming size must not exceed 0.1-0.2 mm). When printing, the dark version presses the shallow version, and the graphic version compresses and releases the version. In this way, when the organic board is not cut properly or the manual placing board and the positioning block are poorly connected, the overprinting is also accurate.
Table 1 Characteristics and uses of organic glass

Name Color Thickness (mm) Main use Transparent plate transparent 1～50 Anti-print plate, craft frame, crystal plate Flat plate color complete 2～10 Shop signboard, display plate, craft pearl plate full color 2～4 stereo emboss, Handicrafts, Crafts, Fluorescent Colors, Less Colors Can Be Customized Special Occasions There are no ready-made panels for sand panels, self-printing indoor display stands, matte signages with flat-panel sand-surface inks (to be continued)