The C9 Petroleum Resin is the carrier of the pigment in the ink and the core material of the ink. The quality of the ink will directly affect the performance of the ink, because the binder largely determines the viscosity, viscosity, dryness and fluidity of the ink.

Stable and Firm

The polyurethane ink binder system can often solve the problem of adhesion on non-polar substrates by adding a small amount of adhesion promoters specially used for PP and PE, or combining a small amount of chlorinated polypropylene C9 Resin with polyurethane resin. It can solve the problem of the versatility of a resin binder, and at the same time solve the problem of excessive toluene solvent residues that are prone to occur when chlorinated polypropylene resin is used as the binder. This breakthrough is particularly important in the 21st century where green environmental protection is advocated.

Hydrocarbon Resin can be seen that the resin binder acts as a dispersing and wetting medium in the ink, and also provides the most basic and most important adhesion fastness between the ink and the substrate, and is one of the most basic indicators of the ink.

Tinting Strength

Organic pigments are the most basic materials that provide color to ink, but the color displayed to consumers as the ink adheres to the surface of the substrate often deviates more or less from the color of the pigment itself. The reason is that in the ink, the pigment particles do not exist alone, but are dispersed in the vehicle medium.

Anti-stickiness

The good or bad anti-adhesion of the ink is not only related to the thoroughness of the solvent gradient volatilization during the printing process, but also directly related to the film formation of the C9 Petroleum Hydrocarbon Resin binder used and the molecular properties of the resin. The resin binder with good film-forming properties can give the ink good dryness. After the solvent is evaporated and dried thoroughly, the film is formed completely, and the anti-stickiness is excellent after winding.

Resolubilise

In gravure printing, ink resolubilise is also a key indicator to detect ink performance. Especially in color ink printing, moderate resolubilise can not only fully display the color, but also solve the problems of shallow screen blocking and overprinting of the printing plate.