Film coating device and film coating method for high viscosity material
A film-coating device and high-viscosity technology, which is applied to the surface coating liquid device, spray device, coating, etc., can solve the problem of slow dissolution of PI slurry, poor uniformity of coating film, and inability to quickly clean high-viscosity Problems such as material residue
Active Publication Date: 2021-09-14
德沪涂膜设备(苏州)有限公司
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Problems solved by technology
[0004] However, sheet coating equipment is often used for photoresist coating in panel production. Half of the viscosity of photoresist is below 50cps. The cleaning agent can quickly dissolve and take away the remaining photoresist, but the viscosity of PI slurry Basically, they are all greater than 7000cps, and the dissolution rate of the solvent to the PI slurry is also slow, so that when the PI film is produced by sheet coating, there are problems that the high-viscosity material residue cannot be quickly cleaned in the pre-coating area, and a large amount of cleaning agent needs to be used. The problem of poor film uniformity
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[0040] The present embodiment discloses a coating device and a coating method for high-viscosity materials, which can quickly clean the residues of high-viscosity materials, reduce the usage of cleaning agents, and improve the uniformity of coating films. The coating device and the coating method of the high-viscosity material according to the present embodiment are suitable for the coating device and the coating method of the developed high-viscosity material. The film-coating device and the film-coating method suitable for the developed high-viscosity material can be simply referred to as the film-coating device and the film-coating method.
[0041] figure 1 A block diagram of a film coating apparatus 1 suitable for high-viscosity materials developed according to an example of the present disclosure is shown. In this embodiment, as figure 1 As shown, the film coating device 1 may include a feeding module, a pre-coating module, a coating module, a cleaning module and a cont...
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The disclosure provides a film coating device for high-viscosity materials suitable for research and development and mass production, which includes a feeding module, a pre-coating module, a coating module, a cleaning module and a control module. The feeding module includes a distribution cutter head, a knife Head pressure monitor, reservoir, feed pump, pump pressure monitor, suction valve, discharge valve, connection valve and control valve, pre-coating module including flexible substrate, support and take-up and unwind rollers , if the winding roller rotates, the flexible substrate will move from the unwinding roller to the winding roller through the support part, the coating module includes the substrate carrying platform and the substrate, the cleaning module includes the cutter head cleaning tank and the cutter head cleaning clip, and the control module is configured Allocate the movement and movement rate of the cutter head and the control based on the pressure value of the pump pressure monitor, the pressure value of the cutter head pressure monitor, the fluctuation of the pressure value of the pump pressure monitor, and the fluctuation of the pressure value of the cutter head pressure monitor Opening and closing of suction valve, discharge valve, connection valve and control valve.
Description
technical field [0001] The present disclosure particularly relates to a film coating device and a film coating method for high-viscosity materials. Background technique [0002] In the existing manufacturing of curved and folded panels, the production of PI films has become key in this field. The production process of PI film generally includes three steps: PI slurry synthesis, PI slurry coating, and PI slurry imidization to form a film. The traditional non-transparent PI film-forming methods include dipping method, casting method, casting stretching method, etc., but such methods are not suitable for the production of transparent PI films that require extremely high film uniformity. Existing film-forming methods of transparent PI include spin coating, blade coating, and slit coating. Among them, slit coating has become the main choice for flexible panel PI coating due to its advantages of good film formation uniformity, application to larger substrate size, and high produ...
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IPC IPC(8): B05C5/02B05C11/10B05C13/02B05B15/55B05D1/26
CPCB05C5/0245B05C11/1026B05C11/1013B05C13/02B05B15/55B05D1/26
Inventor 徐建煌张恒王锦山
Owner 德沪涂膜设备(苏州)有限公司