Classify of ink2016.12.20 08:52
Ink by connecting material (resin), pigments, fillers, additives and solvents, etc. What are the classification of the ink?
1.Letterpress printing ink. To print books, newspapers, brochures, documents, account books and other type of ink. Is the main characteristic of letterpress printing layout details the bulge on the lis part. Letterpress printing ink types according to the press and printing products use and letterpress printing ink, copperplate printing ink, letterpress rotary printing ink, flexible letterpress printing ink.
2.The lithographic printing ink. Applicable to a class of printing ink. Lithographic parts basically at a plane, layout of the motifs in oil-wet, hydrophilic, the grain by using the principle of oil and water repellent for printing, so the lithographic printing ink water resistance is a must. According to the process is divided into offset printing ink, for web offset printing ink, offset printing ink, waterless offset printing ink, printing ink, ink, cosette version of lithographic printing ink.
3.Gravure printing ink. Apply a class of gravure printing ink. Recessed in the layout on the part of the grain when printing ink, wipe away or will not show the part of the ink scrape, and printing. Carved gravure inks and gravure printing ink.
4.Mesh printing inks. Through the mesh plate printing of printing ink to the printing surface. Mesh version and screen printing inks, ink is divided into copying ink.
Ink manufacturing process can be divided into stirring dispersion and grinding fine dispersed in two stages. The former will match good pigment and links within the container stir into paste; The latter will still be in the mixing of slurry grinding fine dispersed, again with larger mechanical pressure and shear force to overcome the pigment's cohesive force, eventually become suspended colloid of ink.