PRINTING TECHNOLOGY

 

Offset Printing: A Color Blindness Test For Printers : This is a color blindness test.  Though these pictures can tell you if you suffer from color blindness, it should not replace an actual diag...

Offset Printing: Troubleshooting Piling Problems : For the past few weeks we've had serious problems within piling on our four color web press.  We are running four units in the following o...

Offset Printing: Troubleshooting Piling Problems : For the past few weeks we've had serious problems within piling on our four color web press.  We are running four units in the following o... 

Printing Inks Ink Ingredients Ink ingredients fall into three main categories: pigment, vehicle, and modifiers/additives. Because there are so many different types of printing processes and print applications, the ingredients used in these three categories may vary widely. For example, for offset lithography, ink requires a higher degree of pigment than many other processes. This is because nearly half of the ink used in the offset process does not reach the printing surface. In direct printing methods, such as letterpress, a much higher percentage of the ink reaches the substrate. Pigment The ingredients that comprise the color of the ink are referred to as pigment. The pigments are formulated from substances that create a desired color when the substances are blended together in specific proportions. Some of these substances may be ingredients found in nature or they may be produced synthetically. The substances can be in the form of dyes, powders, liquid dispersions, or concentra...