{"id":304,"date":"2022-11-18T22:21:50","date_gmt":"2022-11-18T22:21:50","guid":{"rendered":"http:\/\/www.unigraphinternational.ca\/?post_type=unigraph_soutien&p=304"},"modified":"2022-11-22T13:27:17","modified_gmt":"2022-11-22T13:27:17","slug":"chalking-powdering","status":"publish","type":"unigraph_soutien","link":"https:\/\/www.unigraphinternational.com\/en\/soutien\/chalking-powdering\/","title":{"rendered":"Chalking\/Powdering"},"content":{"rendered":"

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

Chalking\/Powdering : Ink is dry but rubs off easily under a little pressure.<\/p>\n\n\n\n\n\n\n\n\n
Causes<\/th>\nRemedies<\/th>\n<\/tr>\n
Insufficient binder in ink.<\/td>\nAdd good drying, high-viscosity binder.<\/td>\n<\/tr>\n
Vehicle is too low in viscosity.<\/td>\nAdd good drying, high-viscosity binder.<\/td>\n<\/tr>\n
Stock is too porous for ink.<\/td>\nAdd good drying, high-viscosity binder.<\/td>\n<\/tr>\n
Ink dries too slowly<\/p>\n
    \n
  • (a)\u00a0Poor drying vehicle<\/li>\n
  • (b)\u00a0Lack of driers<\/li>\n
  • (c)\u00a0Too much antioxidant<\/li>\n
  • (d) pH of paper or fountain solution too acidic.<\/li>\n
  • (e) Too much fountain solution dampening stock, or moisture content of stock is too high.<\/li>\n<\/ul>\n<\/td>\n
\n
    \n
  • (a) Add good drying vehicle. Add proper drier to the ink.<\/li>\n
  • (b)\u00a0Add good drying vehicle. Add proper drier to the ink.<\/li>\n
  • (c) Add good drying vehicle. Add proper drier to the ink.<\/li>\n
  • (d) Change to a more neutral or alkaline paper. Re-mix fountain solution to a pH between 4.5 and 5.<\/li>\n
  • (e)\u00a0Cut back amount of water carried if possible, and use heater in delivery if possible. Always store stock in a dry location.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
Ink not formulated properly for substrate being printed on.<\/td>\nConsult your ink manufacturer. Addition of driers to ink or fountain solution may help.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

TROUBLESHOOTING FOR SHEETFED AND WEB PRESSES Chalking\/Powdering : Ink is dry but rubs off easily under a little pressure. Causes Remedies Insufficient binder in ink. Add good drying, high-viscosity binder. Vehicle is too low in viscosity. Add good drying, high-viscosity binder. Stock is too porous for ink. Add good drying, high-viscosity binder. Ink dries too […]<\/p>\n","protected":false},"template":"","unigraph_category_soutien":[33],"class_list":["post-304","unigraph_soutien","type-unigraph_soutien","status-publish","hentry","unigraph_category_soutien-troubleshooting"],"acf":[],"yoast_head":"\nChalking\/Powdering - 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\/chalking-powdering\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chalking\/Powdering - Unigraph international\" \/>\n<meta property=\"og:description\" content=\"TROUBLESHOOTING FOR SHEETFED AND WEB PRESSES Chalking\/Powdering : Ink is dry but rubs off easily under a little pressure. Causes Remedies Insufficient binder in ink. Add good drying, high-viscosity binder. Vehicle is too low in viscosity. Add good drying, high-viscosity binder. Stock is too porous for ink. Add good drying, high-viscosity binder. 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