Sign factory introduce sign making process

Sign factory introduction signs production technological process of substrate preparation and surface treatment before printing to make the silk screen printing material and printing plate - printing - check to fix to corrosion and dry cleaning, finished product. The surface treatment of substrates. Copper base and iron base material - - - - - - - > sign factory introduction signs production technological process of substrate preparation and surface treatment before printing to make the silk screen printing material and printing plate - printing - check to fix to corrosion and dry cleaning, finished product. The surface treatment of substrates. Copper base and iron base materials in dilute sulfur oxide layer surface, and water washing, after air can be printed. Aluminum material in thermal recede oil in sodium carbonate solution, and the Internet printing after washing to dry. Remission of oil pollution can also use organic solvent such as gasoline, banana oil, trichloroethylene, cyclohexanone, etc. , or use the detergent, washing powder, dedicated diluents, etc. If metal substrate surface has serious ma pit, scratch, oxidation spot, usable mechanical polishing or brush light means of processing lines, then for oil (2) the printed material. Used for screen printing signs printed material is a wide variety of specifications, but used in corrosion sign printing graphic printed material only commonly use corrosion resistant material. It should have good film-forming, easy to dry, good network, good resistance to corrosion, and easy to remove performance. Common corrosion seal material has the following several kinds: thick paint printed material. Thick paint is a kind of traditional printed material. Thick paint drying oil is generally selected thick paint, add a certain amount of phenolic acid varnish, alkyd varnish, asphalt paint made from such as. Sign factory introduction signs remission production process printing material: copper, iron base sign printed material available lye, aluminum panels using organic solvent ( Such as lacquer thinner, xylene, etc. ) In addition to. Alkali soluble corrosion resistant material. Alkali soluble corrosion seal is developed in recent years, the printing material, has the characteristics of quick drying, easy to film, especially suitable for mechanized assembly line production. Printing. 一个。 The printing way. Manual or mechanical, mainly by hand. b。 Network distance. Networks on the printing area, is commonly 3 mm * *. c。 Scraper. a) Material: polyurethane rubber, the thickness of 8? 12 mm, shaw hardness A50? 60 degrees. +b) Size: length should be longer than screen printing graphic width 20? 30 mm, 20 strip above the height of the handle? 30mm。 c) Scrapping printing Angle: 60 70 ° to 45 ° is preferred. Corrosion. Printed sign semi-finished products through inspection, repair parts, after drying, corrosion assignments can be delivered to the next process.