A high-permeability film production line and its production process

Abstract

The invention discloses a high-permeability membrane production line which is used for producing a high-permeability membrane product. The high-permeability membrane production line comprises a double-screw extruder, a three-roller plating press, a traction machine, a nine-roller preheating device, a longitudinal stretching machine, a cooling traction machine, a transverse stretching machine, a transverse-stretching traction machine and a winding machine, wherein the transverse stretching machine comprises a transverse oven, a transverse transmission and a hot air fan, and the transverse transmission is arranged inside the transverse oven and stretches out of the transverse oven in the width direction of the transverse oven. The invention also discloses a high-permeability membrane production process. The high-permeability membrane production process comprises the following steps of batching, extruding, longitudinal stretching, transverse stretching, thickness monitoring, electric corona processing, traction winding online splitting and waste recycling. The high-permeability membrane production line can be used for producing the high-permeability membrane product with high quality, the produced high-permeability membrane product is high in transparency and strength parameters, and the reject rate in the commissioning process is low.

Description

technical field [0001] The invention relates to a high-permeability membrane production line, and also relates to a high-permeability membrane production process. Background technique [0002] High transmittance film is made of high light transmittance material and is often used as a protective film for LCD screens. The high-transparency protective film material is extremely scratch-resistant and wear-resistant. It uses 100% silicone raw material, and there is no air bubbles when it is pasted on the liquid crystal surface. 95%, optical effect with ultra-high light transmittance, no glue residue after removal. [0003] The light transmittance and strength of the film produced by the film production line in the prior art meet the relevant requirements in the appraisal standards of the same industry in China, but it is difficult to enter the international market with the current quality. Usually the transmission part of the biaxial stretching in the production line is inside ...

AI Technical Summary

Problems solved by technology

[0003] The light transmittance and strength of the film produced by the film production line in the prior art meet the relevant requirements in the appraisal standards of the same industry in China, but it is difficult to enter the international market with the current quality

Usually the transmission part of the biaxial stretching in the production line is inside the bidirectional oven, so that the products produced in this way will be affected by the ambient temperature and humidity after being cooled, and the thickness or width will have some deviations, resulting in the quality parameters such as transparency and strength of the product. high

[0004] In addition, due to the limitations of the production process, formula and heating temperature during the trial production process of the existing high-permeability film production line, the scrap rate is relatively high. During the stretching process, the product is affected by the temperature within a certain length and area. It will be very unstable in the early stage of test machine, which will inevitably increase the cost of test machine

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