{"id":308,"date":"2022-11-18T22:19:42","date_gmt":"2022-11-18T22:19:42","guid":{"rendered":"http:\/\/www.unigraphinternational.ca\/?post_type=unigraph_soutien&p=308"},"modified":"2022-11-22T13:27:50","modified_gmt":"2022-11-22T13:27:50","slug":"dot-gain","status":"publish","type":"unigraph_soutien","link":"https:\/\/www.unigraphinternational.com\/en\/soutien\/dot-gain\/","title":{"rendered":"Dot gain"},"content":{"rendered":"

TROUBLESHOOTING FOR SHEETFED AND WEB PRESSES<\/h4>\n

Dot gain :\u00a0The halftone dots increase in size, causing the printed signature to lack sharpness<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
Causes<\/th>\nRemedies<\/th>\n<\/tr>\n
Blankets packed incorrectly.<\/td>\nCheck with a packing gauge. Compressible blankets require about .006\u201d (.15mm) between plate\/blanket and blanket\/paper to obtain optimal print. Assure that back pressure is set properly.<\/td>\n<\/tr>\n
Plate imaging incorrect.<\/td>\nCheck exposure element on the plate to assure imaging is correct.<\/td>\n<\/tr>\n
Improperly set rollers and pressures.<\/td>\nReset rollers and pressures.<\/td>\n<\/tr>\n
Rollers or blankets too soft.<\/td>\nCondition or replace rollers or blankets.<\/td>\n<\/tr>\n
Ink is too long in body or too low in tack.<\/td>\nReformulate ink following recommended guidelines<\/td>\n<\/tr>\n
Ink is too receptive to water.<\/td>\nReformulate ink following recommended guidelines.<\/td>\n<\/tr>\n
Piling.<\/td>\nConsult PILING section.<\/td>\n<\/tr>\n
Poor plate exposure or processing.<\/td>\nDesensitize or re-make plate.<\/td>\n<\/tr>\n
Dirty dampening system.<\/td>\nDrain tank and re-fill with fresh fountain solution.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

TROUBLESHOOTING FOR SHEETFED AND WEB PRESSES Dot gain :\u00a0The halftone dots increase in size, causing the printed signature to lack sharpness Causes Remedies Blankets packed incorrectly. Check with a packing gauge. Compressible blankets require about .006\u201d (.15mm) between plate\/blanket and blanket\/paper to obtain optimal print. Assure that back pressure is set properly. Plate imaging incorrect. […]<\/p>\n","protected":false},"template":"","unigraph_category_soutien":[33],"class_list":["post-308","unigraph_soutien","type-unigraph_soutien","status-publish","hentry","unigraph_category_soutien-troubleshooting"],"acf":[],"yoast_head":"\nDot gain - Unigraph international<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.unigraphinternational.com\/en\/soutien\/dot-gain\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dot gain - Unigraph international\" \/>\n<meta property=\"og:description\" content=\"TROUBLESHOOTING FOR SHEETFED AND WEB PRESSES Dot gain :\u00a0The halftone dots increase in size, causing the printed signature to lack sharpness Causes Remedies Blankets packed incorrectly. Check with a packing gauge. Compressible blankets require about .006\u201d (.15mm) between plate\/blanket and blanket\/paper to obtain optimal print. Assure that back pressure is set properly. Plate imaging incorrect. 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