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Manual pulling the operation process
Manual screen printing homework 1, check the printing plate Check the sealing glue plate, plate for sand holes damaged, and without loose floor plate installation, nets from proper positioning is correct, printing rules, many have go f version phenomenon. 2, the selection of scraper The length of blade should be slightly longer than printing, printing and different things should choose different shapes of scraper. Rubber spatula due and certain flexible, and improve nets edition with things contact performance, printing ink even. Scraper mouth, such as not smooth level required to wear away, application sand paper scraper materials can choose 5 mm of acid rubber production. 3, printed material preparation Seal material shall be according to the preparation of the printed material and things to decide exactly the type of printing and composition, allocate key is the palette, when dry degree, the viscosity, makes every effort to adapt to the requirements of the blow seal. Seal material shall first be tuned and deposit a day, make its stable performance, and the golden except. Should also look at whether foreign body in print material, in case the blow when printed cut the board. 4, printed material. Cast Printed material generally fall in net frame ahead in the starting position and scraper, within the scope of width in the box seal material shall not net place too much, be added any time, and scraping the seal operation easy control of ink. 5, scraping the seal (1) put things in handheld prints with the rules of the counter and put down the nets version, the printing plate and frame with certain nets between blocks away from. (2) the handheld scraper pressure to screen, scraper scraping the move should maintain a 50-60 ° Angle, with a certain speed scraper for scraping the ink campaign to make materials in squeegee pressure seal, the function of hollow out graphic part of the screen from the hole in the LouYin to the thing on printing, scraper scraping the screen printing and rebound after things apart. Depending on the size of the printing area and the length of scraper, can adopt single hand or hands, but to blow seal operation control the amount of material printing, the printing plate layout to scraper, can not have the seal material in the plate and place. (3) to carry the tennis box, from the counter take out their content. 6, scrub nets version The printing process, found imprinting fuzzy and nets hole clogged, be scrubbed the printing plate, with skimmed cotton wool or soft cloth dips in solvent graze nets version, when both sides swab shall first scrub graphic place, then scrub other place. Both sides of the plate to scrub clean, plugging nets place to relax and blot on the plate of the solvent. After the completion of the printing plate should also will be swabbed clean. 7, precise color printing Used for the precise color printing color version blow to distinguish the ink levels, in general should first printing light color printing, first YinCi after dark to India, in the system after the main plate should be arranged when. Precise color version must be accurate, especially the first longitudinal monochromatic edition rules to India is very accurate. In the scratch of mixture color printing, should inspect mixture color to the plate on the form change, for the print edition scrape. 8, printing, dry Every time after printing to dry, but two colors in the middle of the dry only request road printing won’t contamination on the road print, the last of the dry also consider the ink layer dry, in order to ensure that the ink layer attached fastness. Some prints for climate change things easily expand and contract, such as overprint, long time not in time aside, this will cause misregister in dry, attention should be. (Gold Printing Group)
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