US Patents D355,669 & D346,397
FACT: The world’s largest battery separator manufacturer in Japan developed their coating technology using our MICROGRAVURE™ technology, and they continue to manufacturer their separators using only our technology
A smaller diameter gravure roll engraved with patterns or cells to provide a specific coating volume. It is used in a reverse kiss coating method in which the roll is partially submerged in a pan of solution. The roll rotates in the opposite direction of the web, and the cells pick up the coating solution. The flexible doctor blade lightly smoothes off the excess and the precisely measured solution in the cells is then transfered to the web.
|Large contact area (a) and small web-to-roller (b) distance||Small contact area (a) and larger web-to-roller distance (b)|
|Unstable bead of solution||Very stable bead of solution|
|Unstable coating||Exceptionally stable, glossy and uniform coating|
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MIRWEC's Contract Coating facility in Bloomington, Indiana offers coating trials using many different size MICROGRAVURE™.
Yasui Seiki MICROGRAVURE™ rolls are made-to-order custom rolls. Each roll goes through numerous manual finishing procedures that are our trade secrets. Along with the finishing procedures, all meticulous physical, mechanical and chemical tests are manually done with extreme care by our Master MICROGRAVURE™ Engineer. Only Yasui Seiki can deliver full functionality of one-of-a-kind MICROGRAVURE™.
Yasui Seiki MICROGRAVURE™ is the method of choice in Japan for the coating process of multiple layers in LCD displays as well as touch screen components. Our technology is predominantly used in essential electronics, such as smartphones, tablets, computer monitors and other LCD displays. 95% of the smartphones sold in the US contain at least one layer coated by one of our MICROGRAVURE™ coating machines. MICROGRAVURE™ application is also rapidly growing in the Li-ion battery, solar cell, and window film industries.
See Applications for more application examples.
|Mesh||Reference Thickness (Wet μm)|
|R25||50 - 80|
|R30||30 - 45|
|R36||28 - 43|
|R38||25 - 40|
|R45||28 - 43|
|R50||25 - 35|
|R55||20 - 30|
|R60||21 - 31|
|R65||13 - 22|
|R70||16 - 25|
|R75||20 - 30|
|R80||12 - 20|
|R85||13 - 22|
|R90||8 - 16|
|R95||7 - 15|
|R100||6 - 14|
|R110||6 - 13|
|R120||5 - 11|
|R150||4 - 9|
|R180||3 - 8|
|R200||2 - 5|
|R230||1.5 - 3.5|
|R250||1 - 2|
|R400||Currently in testing phase|