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Production device of broad width PVA polarized light film

A polarizing film and production equipment technology, applied in the direction of polarizing elements, optics, optical elements, etc., to achieve the effects of low scrap rate, precise heating temperature, and easy control of thickness

Inactive Publication Date: 2010-03-17
SERVICE CENT OF COMMLIZATION OF RES FINDINGS HAIAN COUNTY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology and equipment are generally suitable for the production of narrow-width PVA polarizing film, while the production equipment and technology of wide-width PVA polarizing film are still blank

Method used

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  • Production device of broad width PVA polarized light film
  • Production device of broad width PVA polarized light film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] like figure 1 As shown, the production equipment of PVA polarizing film includes film making equipment and post-processing equipment.

[0016] The film-making equipment includes stirring tank 5, liquid storage tank 1, buffer tank 8, regulating motor 10, crawler conveyor device 12, oven 13, film-making heating roller group, film-making shaping roller group, and film-making traction device 18-1.

[0017] The top of the stirred tank 5 is provided with a feeding port, and the lower part is provided with a discharge port. The top of the liquid storage tank 1 is provided with a feed port, and the lower part is provided with a liquid outlet. The liquid storage tank 1 is sequentially provided with a first-stage filter The net 2-1 and the secondary filter screen 2-2, the primary filter screen 2-1 and the secondary filter screen 2-2 are arranged horizontally, and the mesh number of the primary filter screen is smaller than that of the secondary filter screen. The discharge port ...

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Abstract

The invention relates to a production device of a broad width PVA polarized light film. The prior processes and devices can not produce broad width PVA polarized light films. The production device ofthe broad width PVA polarized light film comprises a film fabrication device and a post treatment device; the film fabrication device comprises a stirring kettle, a liquid storage tank and a buffer slot which are connected in series through pipelines; a stainless steel conveyer belt of a track conveying device is arranged by penetrating an oven, and the rear part thereof is provided with a film fabrication heating roller group, a film fabrication setting roller group, a film fabrication traction device and a winding device; and the post treatment device comprises a primary solution tank, a post treatment heating roller group, a secondary solution tank, a post treatment setting roller group, a post treatment traction device and a winding device which are sequentially arranged; and two positioning rollers are arranged in the primary solution tank, and two stretching rollers are arranged in the secondary solution tank. In the production device of the broad width PVA polarized light film,the heating roller group, the setting roller group and the stretching rollers are heated by adopting oil medium; and the production device of the broad width PVA polarized light film has simple structure, accurate heating temperature and easy control of film thickness, and can realize the industrialization production and produce the broad width PVA polarized light films.

Description

technical field [0001] The invention belongs to the field of film technology, and in particular relates to a production equipment for wide-width PVA polarizing film. Background technique [0002] At present, there are few longitudinal stretching production devices and processes for producing PVA polarizing film on the market. The existing technology and equipment are generally suitable for the production of narrow-width PVA polarizing film, but the production equipment and technology of wide-width PVA polarizing film are still blank. With the popularization and application of large liquid crystal display screens (over 50 inches), the demand for wide-width PVA polarizing film is becoming more and more urgent in the market. Contents of the invention [0003] The purpose of the present invention is to provide a kind of production equipment of wide-width PVA polarizing film. [0004] The invention includes film-making equipment and post-processing equipment. [0005] The fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02B1/04
Inventor 梁多平项秀阳董淑英周盛华胡更生赵松章徐德英
Owner SERVICE CENT OF COMMLIZATION OF RES FINDINGS HAIAN COUNTY
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