SLOT-DIE COATING APPARATUS AND SLOT-DIE COATING METHOD

A slot-die coating apparatus for manufacturing a patterned coating layer (3) on a substrate surface (1s) of a substrate (1) comprises a slot-die coating head (2), a controlled coating fluid supply system (7) and a substrate carrier (6) for carrying the substrate (1). The slot-die coating head (2) co...

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Hauptverfasser: de Vries, Ike Gerke, Groen, Wihelm Albert
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Groen, Wihelm Albert
description A slot-die coating apparatus for manufacturing a patterned coating layer (3) on a substrate surface (1s) of a substrate (1) comprises a slot-die coating head (2), a controlled coating fluid supply system (7) and a substrate carrier (6) for carrying the substrate (1). The slot-die coating head (2) comprises an inlet (21) for receiving coating fluid from the coating fluid supply system and a slit-shaped outflow opening (22) that is communicatively coupled to the inlet and has a slit direction. The controlled coating fluid supply system (7) alternately operates in a first mode (M1) to provide for a flow of coating fluid out of the slit-shaped outflow opening (22) for deposition on the substrate surface and in a second mode (M2) wherein a deposition of coating fluid out of the slit-shaped outflow opening (22) on the substrate surface is interrupted (21). The coating head (2) has an internal coating fluid trajectory extending from the inlet (21) to the slit-shaped outflow opening (22). In a stream-downwards order, the coating fluid trajectory comprises a lateral distribution portion (23) to distribute a flow of fluid over said slit direction, a collection channel (24) extending transverse to the stream-downwards direction, and a flow resistive output portion (25). Upon a transition from the first mode (M1) to the second mode (M2) the coating fluid supply system (7) sucks coating fluid from at least one outlet (26) of the slot-die coating head (2) that is communicatively coupled to the collection channel (24).
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The slot-die coating head (2) comprises an inlet (21) for receiving coating fluid from the coating fluid supply system and a slit-shaped outflow opening (22) that is communicatively coupled to the inlet and has a slit direction. The controlled coating fluid supply system (7) alternately operates in a first mode (M1) to provide for a flow of coating fluid out of the slit-shaped outflow opening (22) for deposition on the substrate surface and in a second mode (M2) wherein a deposition of coating fluid out of the slit-shaped outflow opening (22) on the substrate surface is interrupted (21). The coating head (2) has an internal coating fluid trajectory extending from the inlet (21) to the slit-shaped outflow opening (22). 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subjects APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
PERFORMING OPERATIONS
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL
SPRAYING OR ATOMISING IN GENERAL
TRANSPORTING
title SLOT-DIE COATING APPARATUS AND SLOT-DIE COATING METHOD
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