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1. (WO2019050768) WEB COATING AND CALENDERING SYSTEM AND METHOD
Nota: Texto obtenido mediante procedimiento automático de reconocimiento óptico de caracteres.
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What is claimed is:

1 . A system for coating first and second sides of a substrate in a single pass, comprising:

a. A first coater for applying a first coating layer to the first side of said substrate;

b. A second coater for applying a second coating layer to the second side of said substrate;

c. A dryer downstream of said second coater for drying the first and second coating layers such that the first and second coating layers retain a predetermined level of residual moisture;

d. A calender positioned downstream of said dryer for calendering the first and second coating layers.

2. The system of claim 1 , wherein said calender is immediately downstream of said dryer.

3. The system of claim 1 , wherein said substrate is a metal foil.

4. The system of claim 1 , wherein said first side is opposite said second side.

5. The system of claim 1 , wherein said first coating layer comprises an active electrode material.

8. The system of claim 5, wherein said active electrode material comprises lithium. 7. The system of claim 1 , wherein the predetermined level of residual moisture is effective for achieving a target coating thickness on said substrate with a calendering force applied by said calender thai is less than the force required at a level of residual moisture higher than said predetermined level.

8. The system of claim 1 , wherein said substrate proceeds from said dryer to said calender without being subjected to an offline dry down period.

9. The system of claim 1 , wherein said substrate proceeds from said dryer to said calender without being subjected to offline vacuum drying.

10. The system of claim 1 , wherein said dryer is a flotation dryer.

1 1 . The system of claim 1 , further comprising a secondary dryer downstream of said calender.

12. The system of claim 10, wherein said secondary dryer is a festoon dryer.

13. A method of coating first and second sides of a substrate in a single pass, comprising:

a. Applying with a first coater a first coating layer to the first side of said substrate;

b. Applying with a second coater a second coating layer to the second side of said substrate;

c. Non-contactlessly drying said first and second coating layers in a flotation dryer positioned downstream of said first and second coaters such that the first and second coating layers retain a predetermined level of a residual moisture when exiting said dryer;

d. Calendering said coated substrate downstream of said drying.

14. The method of claim 13, wherein said calender is immediately downstream of said dryer.

15. The method of claim 13, wherein said substrate is a metal foil.

18. The method of claim 13, wherein said first side is opposite said second side.

17. The method of claim 13, wherein said first coating layer comprises an active electrode material.

18. The method of claim 17, wherein said active electrode material comprises lithium.

19. The method of claim 13, wherein the predetermined level of residual moisture is effective for achieving a target coating thickness on said substrate with a calendering force that is less than the force required at a level of residual moisture higher than said predetermined level.

20. The method of claim 13, wherein said substrate is not subjected to an offline dry down period between the steps of non-contactiessly drying said first and second coating layers and calendering.

21 . The method of claim 13, wherein said substrate is not subjected to offline vacuum drying between the steps of non-contactlessly drying said first and second coating layers and calendering.

22. The method of claim 13, further comprising, after calendering, subjecting said substrate to secondary drying.

23. The method of claim 22, wherein said secondary drying is carried out in a festoon dryer.