脚印油墨辅料介绍（Footprint ink introduction）.doc

脚印油墨辅料介绍（Footprint ink introduction） Footprint ink introduction Ink in actual use, due to differences in the paper type, nature, change, printing process and workshop technology conditions and other factors of the original ink of the physical and chemical properties and printability does not match or need to fight with different concentration, light tone color and color ink, need to add some additives. To meet the requirements of the technical conditions. These additions are usually referred to as the excipients of the ink. Proper and rational use of excipients is of great technological significance in ensuring printing quality and printing quality, as well as saving the consumption of ink and ensuring the stability of the original ink. This section gives a brief account of the basic composition, general properties, varieties and uses of common offset printing ink accessories. 1, consistency modifier Ink scheduling, to a certain extent, reflects the rheological properties of the ink. The so-called ink consistency regulator, refers to improve and reduce the ink consistency of accessories. According to its composition, character and function, the consistency regulator is generally divided into the following two types. (1) thickening agent: auxiliary agent that can improve ink system without affecting its structure and function. It is called ink thickener (as shown in Table 1). Thickening agent according to its composition, character and function, generally divided into two types of oil and resin type. (2) thickener: an auxiliary additive that reduces ink body consistency without changing its structure or function, known as an ink thickener (as shown in Table 2). Thickener according to its composition, character and role, generally divided into fat, resin and solvent three categories. The most commonly used thickening agent, oil type has 101 extra oil and 0 extra oil, 05-94 thick ink oil resin type and 901 thick oil, the quality standard can be found in the relevant en