Traditionally, embossing heightens the key area of a graphic overlay or a membrane switch. At Central Midori, there are 5 major types of embossing:
1- Heated Hard Tool Embossing
Using a customized male/female hard tool heated at around 85℃ the typical height is 0.6mm+/- 0.1mm. Conventional polydomes are embossed that way and can withstand more than 1million actuation cycles. The process is compatible with graphic overlay and membrane switch, although special silver ink formulation is required for the latter.
2- Pillow and Rim Emboss
Performed with a male/female etched die at a lower temperature. Maximum height is 0.3mm +/- 0.1.
3- PIP Emboss
It consists of tiny embossed dimples typically used by people who are blind or visually impaired (Braille).
4- Multi-Height Embossing
This process requires an intricate tool of high geometric complexity and a narrow process window. Multiple heights can be achieved through tight process controls, the right substrate and ink formulation.
Debossing is defined as a negative embossing. At Central Midori we can mount LED inside such formed cavity or depression.Either polyester and polycarbonate materials can be embossed. The prefered thickness of polyester range between 50 and 200µm while polycarbonate is more readily embossed in thickness between 100 and 180µm.
Either polyester and polycarbonate materials can be embossed. Polyester prefered thickness range between 50 and 200µm while polycarbonate is more readily embossed in thickness between 100 and 180µm.