The pad is certainly the most important and critical element in pad printing. It takes the ink from the plate and deposits it on the object to be printed. During this operation it must guarantee that the characteristics and the quality of the graphics to be transferred are kept. In order to work in a perfect manner, the pads must fulfil certain chemical and physical requirements which guarantee their operation in the long term.

 

 
 
 
 
 
Characteristics of TOSH pads

For the production of its pads TOSH has developed a series of rubbers with characteristics guaranteeing the following:

  • high mechanical resistance and excellent chemical resistance for longer pad life;

  • correct surface tension for a perfect ink collection and transfer;

  • optimal deviation of electrostatic charges for a print without defects;

  •  very smooth and uniform surface finishing for a clearer print.
Each single TOSH pad is produced in 3 rubber types with different quality, hardness and resistance characteristics.
     
 
WHITE RUBBER
Basic hardness 14 Shore A. This kind of rubber is recommended when soft pads have to be used. These pads are suitable for printing on large objects which are not very rigid and have highly irregular and convex surfaces. This rubber has the best chemical resistance. The pads made of this type of rubber are particularly suitable for machines with a reduced printing strength.
     
YELLOW RUBBER
Basic hardness 23 Shore A. This kind of rubber is recommended when a high degree of  clarity is required, like, for example, in the case of halftone or four-colour process printing. It is useful when a higher quantity of ink is necessary as it is able to take up a higher amount of ink from the plate, compared with other rubbers.
   
 
RED RUBBER
Basic hardness 35 Shore A. This rubber guarantees the best relation between printing quality and mechanical resistance. It is recommended for printing graphics with particularly thin lines and for particularly precise printing. It is indispensable in order to guarantee very long pad life when this is used on highly irregular surfaces.
     
Rubbers hardnesses

In order to have the complete range of Shore A hardness, TOSH produces each rubber in two different hardnesses  

HARDNESS A (soft type)

HARDNESS B (hard type)  

On the basis of specific production requirements TOSH produces rubber with non-standard hardness:

  HARDNESS S (special type)

 
 
 
 

Resolution 800X600

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