Four-color printing principle

Four-color screen printing is actually very simple, it can be printed by machine, or it can be printed by hand.

material:

1: Mesh, we must choose single silk woven mesh; 300 or more, if it is printed 120 lines, it must be selected more than 420 mesh.

2: collapse network, aluminum frame machine collapse, so that the network Bradley more uniform. If it is a pattern below 80 lines, the manual wooden frame is also used. Tension must be tight, it is best to pull more than 40N, the greater the tension the pattern printed more clearly.

3: Photoresist, in fact, domestic imports are the same, the resolution is similar, single-component photosensitive adhesive resolution is better.

4: printing lamp, preferably a 1000-watt lamp, in fact, 40-watt rod UV lamp is also used. The 1000-watt tar plate will have a much better quality. If it is a one-component emulsion, it will be easy to produce a fine pattern.

5: Scraper, fine print 120 lines of the picture must use more than 90 degrees scraper, so the picture will be very clear. The number of scrapers is low and the dots are easily deformed.

6: Ink, four-color fine-printing 120-line picture, of course, UV ink, so as to ensure the printing quality, will not plug the network blocked version. Ordinary ink can be printed below 100 lines. If you do not use slow-drying paste, only 60 lines can be printed to ensure the quality.

7: color sequence, CMYK, first printed C blue, then printed Y yellow, then printed M red, the last printed K black. If it is plexiglass reverse printing, the color sequence should be KMYC, must first be black, otherwise it will be difficult to see drops.

8: Try to scrape twice, get it? Four-color screen printing is so simple.

hint:

The color separation film is laser phototype, also called film film, the general city has a distribution center, the price is very cheap.

Home printers can also print color separations, as long as they are processed in the PS software. The best choice is to use a laser printer. Of course, ink jets can make do. Generally, the computer market has special films for printers to print. A pack of more than 100 yuan is not too expensive.

There is a saying in the silk screen industry: one will learn, one will understand, and one will be stupid! ! It is very difficult to fine-tune the picture above 120 lines. So far, no one dares to say that it can print 175 lines. Slowly to study it, anyway, the silk screen industry will soon be difficult to break through the 175 line.

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Ningbo Yinzhou Hengxi Winbate Household Product Manufacturer , https://www.nbwinbate.com

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