What ink is used for the printed graphic overlays?

What ink is used for the printed graphic overlays?

Inks are generally composed of pigments, connecting materials, fillers, additives, etc.

1, connecting material Connecting material commonly known as color oil. It is the main component of the Membrane Keypading ink, plays the role of dispersing the pigment, so that the ink has appropriate adhesion, fluidity and transfer performance, and makes the pigment fixed on the print surface through the film after printing. Adhesives can be made from a variety of substances, such as various dry vegetable oils, most of which are used to make ink adhesives, mineral oils, solvents and water, as well as various synthetic resins.

The rheology, viscosity, neutrality, acid value, color, water resistance and printing performance of the ink mainly depend on the connection agent, the same pigment, the use of different connectors, can be made into different types of ink; Same adhesive, different paint. It is still made of the same ink, because it cannot change the basic properties of the ink, so the quality of the Membrane Keypad ink, in addition to the pigment, mainly depends on the connection material.

2, the filler is white, transparent, translucent or not bright powdery substance. Mainly used for filling. The appropriate use of some fillers can not only reduce the amount of pigment and reduce costs, but also adjust the Membrane Keypading performance of the ink, such as dilution, fluidity, and improve the flexibility of formula design.

3, the additive is in the Membrane Keypad ink manufacturing, as well as in the printing use, in order to improve the performance of the ink itself and add some materials. According to the basic composition of the ink preparation, when some characteristics still can not meet the requirements, or due to changes in conditions, and can not meet the use of printing requirements, a small amount of auxiliary materials must be added to solve. Such as: desiccant, desiccant, diluent, degumming agent, plasticizer, etc.

4, the pigment in the Membrane Keypading ink plays a color role, it has a direct impact on some characteristics of the ink.

Pigments are highly dispersed colored, black or white powders that are insoluble in water and organic solvents. Inorganic pigments are oxides of non-ferrous metals or insoluble salts of certain metals. Inorganic pigments are divided into natural inorganic pigments and artificial inorganic pigments. Natural inorganic pigment is a mineral pigment. Organic pigments are organic compounds with colors, divided into natural and synthetic two categories. Now commonly used is synthetic organic pigments, organic pigments have many varieties, the color is more complete, the performance is better than inorganic pigments.