Ink includes the main components and auxiliary components, they are evenly mixed and repeatedly rolled into a viscous colloidal fluid.It is composed of pigments, binders, auxiliaries and solvents.Used for printing books and periodicals, packaging and decoration, architectural decoration, etc.With the increase in social demand, ink varieties and output also expand and grow accordingly.Ink mainly solvent ink, water - based ink, UV ink, screen printing ink, offset printing ink and other types of additives for product requirements.Ink physical and chemical properties mainly refers to its density, fineness, transparency, gloss, light resistance, heat resistance and acid resistance, alkali, water, solvent (alcohol).
To increase brightness and whiteness and vividness of ink, usually add ink brightener to improve whiteness, brightness and vividness, are generally use brightener OB, while it is possible to meet customer requirements, but far cannot meet the requirements of most customers, tag along with the development of the economy, environmental protection calls for more and more high, to offset printing ink printing industry puts forward new requirements on non-toxic, environmental protection, environmental offset printing ink received extensive attention of the user and start application in packaging, newspapers, commercial printing, etc., add ink brightener OB requirements of environmental protection, particularly high whiteness requirement, weathering resistance can be persistent no yellowing!Ink this product since the reform and opening up, a wide range of applications, used in books and periodicals, packaging decoration, architectural decoration and electronic circuit boards and other printing, with the increase in social demand, ink varieties and products are also corresponding to the expansion and growth.Brightener Ob fluorescent whitening agent is a kind of traditional, is also a kind of general brightening agent, its application range is very wide, not only can be used in paint printing ink, also can be used in plastic, but because of the plastic profit space is not very big, so the Ob cost is too high, so use plastic Ob is not much more special, most users ink brightener will choose Ob this whitening agent, but because of Ob generality is too strong, so for ink paint using Ob whitening agent of high whiteness value.
