Sigma Corporation Hyderabad, Telangana

The Screen printing process being one the oldest & most efficient methods used around the globe requires the right ink, equipment and skill.

A screen is made of a mesh stretched over a frame. A stencil is formed by blocking off parts of the screen in the negative image of the design to be printed; that is, the open spaces are where the ink will appear on the substrate. Before printing occurs, the screen must undergo the pre-press process, in which an emulsion is scooped across the mesh and the 'exposure unit' burns away the unnecessary emulsion leaving behind a clean area in the mesh. The screen is placed atop a substrate. Ink is placed on top of the screen, and a squeegee is used to push the ink through the holes in the mesh.

Offset printing uses inks that, compared to other printing methods, are highly viscous.There are many types of paste inks available for utilization in offset lithographic printing. These include heat-set, cold-set, and energy-curable (or EC), such as ultraviolet- (or UV-) curable, and electron beam- (or EB-) curable.

Offset printing uses inks that, compared to other printing methods, are highly viscous.There are many types of paste inks available for utilization in offset lithographic printing. These include heat-set, cold-set, and energy-curable (or EC), such as ultraviolet- (or UV-) curable, and electron beam- (or EB-) curable. Siegwerk Offset Ink Matching With our Exclusive set-up with Siegwerk, we offer the exact shade & finish as per your requirement. For this we use a Photo Spectrometer, which analysis and projects the best matched color.