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Five-roller coating device for preparing release film

A five-roller coating and release film technology, which is applied to the device and coating of the surface coating liquid, can solve the problems of increasing product cost, abnormal lines, affecting production capacity, etc., and achieve the goal of increasing production capacity and reducing product cost Effect

Inactive Publication Date: 2022-03-18
苏州市奥贝新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When using the above device to coat silicone oil 13, (1) Because there are standard requirements for the amount of gluing, the silicone oil 13 needs to be diluted before use. The amount of solvent required for dilution is about 3.5kg of solvent per kilogram of silicone oil raw material solution. Dilution, the solvent is a volatile matter, which only serves to dilute the silicone oil raw material solution, and adding a solvent will greatly increase the cost of the product
(2) Because the silicone powder added in the silicone oil 13 is granular, when using the above-mentioned dimple coating process, the edge of the scraper 14 is easy to get caught in the granular silicone powder, resulting in the release film product 15 film surface If there are abnormal lines, it is necessary to clean and wipe the edge of the scraper 14 at intervals or lengths, which is a waste of time and affects production capacity
The granular organic silicon powder added in the silicone oil 13 can easily cause the problem of blockage of the mesh 16 of the upper rubber roller 4. After the roller is blocked, the amount of glue applied will be insufficient, and the release force of the final release film product 15 is relatively high
(4) Due to the dimple coating process, the diameter of the upper rubber roller needs to be thinner, so as to ensure that the appearance of the coated film meets the requirements. It is also because the upper rubber roller is thin, and high-speed operation will cause glue rejection and baking The phenomenon of non-drying occurs, so the speed of the dimple coating process is usually only about 50m / min. If the speed is faster, the coating will be uneven and the amount of glue applied will not meet the requirements.
(5) The gluing amount of the above-mentioned dimple coating process is controlled by the rotation speed of the dimple roller and the solid content of silicone oil, and the error is large

Method used

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  • Five-roller coating device for preparing release film
  • Five-roller coating device for preparing release film
  • Five-roller coating device for preparing release film

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Experimental program
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Effect test

Embodiment approach 1

[0026] This embodiment provides a five-roll coating device for preparing a release film, such as image 3 As shown, it includes metering roller 1, cot roller 2, transfer roller 3, top cot roller 4, coating pressure roller 5, which are arranged parallel to each other and in sequence, and the gluing roller 2 and the metering roller 1. Mouth 6; Coating roller 5 is set directly above the upper rubber roller 4. When the gluing is in progress, the metering roller 1 is tangent to the cot roller 2, the cot roller 2 is tangent to the transfer roller 3, the transfer roller 3 is tangent to the upper cot roller 4, and the coating pressure roller 5 is tangent to the upper cot roller. The rubber roller 4 is tangent; the two ends between the uniform rubber roller 2 and the metering roller 1 are respectively provided with rubber blocking plates 8 . The material roller 9 and the traction mechanism 10 are respectively located at the front and rear sides of the coating pressure roller 5 and the...

Embodiment approach 2

[0031] This embodiment is roughly the same as Embodiment 1, the only difference is that the speed ratio among the metering roller 1, the cot roller 2, the transfer roller 3, the upper cot roller 4, and the coating roller 5 is 25:10:80: 100:100. That is, the speed of the metering roller 1 is 25% of the vehicle speed, and the speed of the other four rollers remains unchanged. Finally, a 1-3g release film product is prepared, and the thickness of the isolation layer is 1.8-3g / ㎡.

[0032] In addition, this embodiment is completely different from Embodiment 1, which will not be repeated here.

[0033] Through the difference in the speed ratio of the five rolls in the above embodiments 1 and 2, the thickness of the separation layer of the release film product obtained is also different. It can be seen that by adjusting the speed ratio of the five rolls in the five-roll coating device in the present application, it is possible to prepare Products with different gluing amounts are p...

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Abstract

The invention relates to the field of preparation of release films, and discloses a five-roller coating device for preparing a release film, which comprises a metering roller (1), a glue homogenizing roller (2), a transfer roller (3), a gluing roller (4), a coating press roller (5) and a glue outlet (6) arranged above the space between the glue homogenizing roller and the metering roller, during gluing, the metering roller is tangent to the glue uniformizing roller, the glue uniformizing roller is tangent to the transferring roller, the transferring roller is tangent to the gluing roller, and the coating pressing roller is tangent to the gluing roller; the rotating speed ratio of the metering roller to the glue uniformizing roller to the transferring roller to the gluing roller to the coating pressing roller is (5-25): 10: 80: 100: 100. When the device is used for carrying out a gluing process, the process speed can be greatly increased, the productivity can be improved, silicone oil does not need to be diluted by using a solvent, the cost is saved, and the gluing amount can be accurately controlled by controlling the rotating speed ratio of the five rollers; the phenomenon that the roller is blocked by organic silicon particles is avoided, and efficiency is high.

Description

technical field [0001] The invention relates to the field of preparation of release films, in particular to a five-roll coating device for preparing release films. Background technique [0002] In the process of producing release film, it is necessary to coat one side of the base film with silicone oil. At present, the method of coating silicone oil on the film 7 to be glued is usually dimple coating, such as figure 1 As shown, the upper rubber roller 4 is placed in the rubber tank 11, and its lower part is located in the silicone oil 13 of the rubber tank 11. The rotation direction of the upper rubber roller 4 is opposite to the running direction of the film 7 to be glued, above the upper rubber roller 4 Two pressure rollers 12 are arranged on both sides, and the film 7 to be glued passes between the pressure rollers 12 on both sides and the upper rubber roller 4 below, and the lowest point of the upper two pressure rollers 12 is lower than the upper rubber roller 4 The hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C1/08B05C11/10
CPCB05C1/0813B05C1/0865B05C1/0808B05C1/0895B05C11/1047
Inventor 罗君龙程元豹罗九川
Owner 苏州市奥贝新材料科技有限公司
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