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Yamahachi Chemical

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Case studies

Marking porous pen tips in Lensmeters

 Marking pen tips for Lensmeter, marking components for office equipment and more 

These are case studies of self-inking marking pen tips for Lensmeter used in ophthalmology and other marking tips for Marking devices which are used in a wide range of fields. Special shapes, adequate hardness and durability were required. The porous tips had to absorb the special ink used by the customers and be capable of continuous marking on surfaces. Depending on the required function, combination with ink-feeders were used.

Background of challenges ;

  • Requested to use porous plastic (PE)
  • Flexibility and appropriate hardness were required to get proper dot marking
  • Special ink was used by customer
  • Special shape was also required
Our solution and benefits ; 

  • Specially blended material was used for requested functions
  • Made several trials to get customer’s target values
  • Injection molding was selected for the special shape
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Case studies & Columns