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    • 3. 发明申请
    • METHOD FOR PREVENTING GHOSTING IN A SLOT COATING DIE
    • WO2022248392A1
    • 2022-12-01
    • PCT/EP2022/063863
    • 2022-05-23
    • BOSTIK SA
    • ZHANG, ZhenjunLI, WenZHU, Xinghua
    • B05C5/02
    • The invention relates to a slot coating die for applying a fluid composition on a substrate, comprising: an upstream die part (1) having a first face (5); a downstream die part (2) having a second face (7), the first face (5) of the upstream die part (1) facing and being parallel to the second face (7) of the downstream die part (2); wherein at least one of the upstream die part (1) and the downstream die part (2) comprises at least one fluid inlet (12) configured for making the fluid composition flow between the upstream die part (1) and the downstream die part (2), and wherein at least one of the upstream die part (1) and the downstream die part (2) comprises at least one horizontal channel (13) on the first face (5) or second face (6), wherein the horizontal channel (13) is at least partially blocked so that the fluid composition is prevented from flowing through at least part of the horizontal channel (13). The invention further relates to a method for applying a fluid composition on a substrate by using said slot coating die and the use of said slot coating die to reduce or prevent ghosting during a slot die coating process. The invention further relates to a method of restructuring an initial slot coating die for applying a fluid composition on a substrate.