Decorative glass screen printing technology
Used in home outfit with a male with two main market by screen printing color glass, its basic production factors as: screen + ink, printing equipment, general screen printing and printing equipment can be made to entrust, and variability of element control focused on ink: here is divided into two kinds: 1, the printing ink;2, spraying ink.The main operating elements are the following:
One, the printing ink (refers to special glass screen printing ink SG series) : 1: color, color + 12 points four color + oil can color + 2: adhesion, 4 class above.Test (1) : 3 m double-sided adhesive refers to stick the attached stripping, did not see the color mark.(2) the habitual fingernails scratching without cracks.3: application: on emulsion (or surface) glass, print 783 diluted directly;After printing plate (or smooth) glass back coating can be directly printed;On the glass plate (or smooth) independent when there is no back coating printing SG677 can add 8-10% curing agent.Table 4: drying: room temperature dry 20-30 minutes, 8 to 10 hours (from dry), such as mandatory quick-drying curing should be printed after the implementation of 80 ° thermostatic 10-15 minutes.
Second, printing control, matters needing attention in the process of operation: 1, net: don't close to the glass screen when printed (substrates), 1-2 cm shall be maintained.2, the ink: after printing to blow gently back into the ink, the ink evenly cover the network map part, avoid dry plate.3, color: before printing ink additives with adjustable lewd, let stand for about 1 hour after defoaming used.A proofing version 4, test: preset, put the ink testing-run small area after the test, and the expected requirements of qualified after printing, avoid uncertainty of failure.5, mesh version: appropriate chooses 180 yard to 300 yard monofilament net cloth, tension in 20 + 2 Newton, oily emulsion compatibility or water and oil emulsion production network version, its resistance to higher rates and solvent (cleaning) with good performance, to reduce the cost.
Three, dilution and cleaning: 1, ink dilution should choose matching auxiliaries, it's for IP783 slow dry water, the German original, good stability, high purity shall not affect the adhesion, dilution ratio of 15 to 25%, the viscosity is moderate, is advantageous to the printing operations.2, screen cleaning, wash after the completion of the single printing stay, should choose SG833 open version of the positive and negative water sheet of the spray, or partial pressure appear.3, defect cleaning: implementation of the printing process, screen or scraping on the reason is not clear or dirty factory seconds, when cleaning of non dispersion type printing ink after the scrub after 807 spray dry can.
Four, note: 1, spray back tu use SE series should be constant temperature device, 150 ° ~ 170 ° drying 10-20 minutes, open water dilution ratio of 2:1, open water by 2 kg spraying color add 1 kg.Type 2, mirror mirror silver ink protective film to isolate after spraying 2-3 times film is reasonable.Article 3, scraping the hardness to choose 70 ° to 75 °.