Search

CN-121978792-A - Performance improving device and method for PVA optical film

CN121978792ACN 121978792 ACN121978792 ACN 121978792ACN-121978792-A

Abstract

The invention relates to the technical field of performance improvement of optical films, and discloses a performance improvement device and method of a PVA optical film, wherein the performance improvement device comprises a box body; the device comprises a box body, a mounting assembly, an air supply assembly and an exhaust assembly, wherein the box body is provided with a top center, the mounting assembly is arranged in the box body and used for mounting and fixing a PVA optical film and driving the PVA optical film to rotate, the air supply assembly is arranged in the top center of the box body and used for inputting constant-temperature and constant-humidity air into the box body, and the exhaust assembly is arranged on the side part of the box body and close to the bottom end of the box body and used for being matched with the air supply assembly so that the constant-temperature and constant-humidity air continuously flows and is conveyed to the PVA optical film. The air supply assembly is adopted to continuously supply constant temperature and humidity air into the box body, and the air exhaust assembly is matched to form constant temperature and humidity dynamic flowing air so as to uniformly age the PVA optical film, so that the performance of the PVA optical film is improved, the quality of the polaroid is guaranteed, and the cost is reduced.

Inventors

  • TANG CHEN
  • HUANG JIE
  • JIANG XIAOYUN
  • LUO CHAO
  • WANG HONGXING
  • AN ZHIMIN

Assignees

  • 重庆光谱新材料科技有限公司

Dates

Publication Date
20260505
Application Date
20251225

Claims (10)

  1. 1. A performance enhancing apparatus for a PVA optical film, comprising: A case; The mounting assembly is arranged in the box body and is used for mounting and fixing the PVA optical film and driving the PVA optical film to rotate; The air supply assembly is arranged in the center of the top of the box body and is used for inputting constant-temperature and constant-humidity air into the box body; And the exhaust assembly is arranged at the side part of the box body and is close to the bottom end of the box body, and is used for being matched with the air supply assembly so that the constant temperature and humidity air is continuously conveyed in a flowing mode to the PVA optical film.
  2. 2. The performance enhancing apparatus of claim 1, wherein the mounting assembly comprises: the two groups of brackets are symmetrically arranged at the inner bottom of the box body; The two groups of rotating assemblies are symmetrically arranged at one ends of the two groups of brackets far away from the inner wall of the box body, and the output ends of the rotating assemblies are connected with the winding cores of the PVA optical film.
  3. 3. The performance enhancing apparatus of claim 1, wherein the air supply assembly comprises: one end of the air supply pipeline is communicated with the box body; the air supply fan is arranged on the air supply pipeline; The heating component is arranged on the air supply pipeline and used for adjusting the temperature of air in the air supply pipeline; the humidity control assembly is arranged on the air supply pipeline and communicated with the air supply pipeline and used for adjusting the air humidity inside the air supply pipeline.
  4. 4. A performance enhancing apparatus according to claim 3, wherein one end of said air supply duct is connected to an inverted U-shaped duct, and both ends of said inverted U-shaped duct are in communication with said housing.
  5. 5. The performance enhancing apparatus of claim 1, wherein the exhaust assembly comprises: One end of the exhaust pipeline is communicated with the box body; The exhaust fan is arranged on the exhaust pipeline.
  6. 6. The performance enhancing apparatus of any one of claims 1-5, wherein said exhaust assemblies are provided in two sets, said two sets being disposed on opposite sides of said housing.
  7. 7. The performance enhancing apparatus of any one of claims 1-5, further comprising: Two groups of circulating pipelines are symmetrically arranged on the box body, one end of each circulating pipeline is communicated with the top of the box body, and the other end of each circulating pipeline is communicated with the side part of the box body; and the two groups of circulating fans are respectively arranged on the two groups of circulating pipelines.
  8. 8. The performance enhancing apparatus of claim 2, wherein the material of the bracket comprises stainless steel.
  9. 9. A method of performance enhancement of a PVA optical film using the performance enhancement device of any of claims 1-8, comprising: placing the PVA optical film on the mounting assembly and securing the PVA optical film by the mounting assembly; the mounting assembly drives the PVA optical film to rotate; presetting ageing parameters, wherein the ageing parameters comprise ageing temperature, ageing humidity and ageing time; starting the air supply assembly and the air exhaust assembly to input flowing air with constant temperature and constant humidity into the box body; Acquiring the real-time temperature and humidity inside the box body; and controlling the air supply assembly according to the real-time temperature and the humidity in the box body.
  10. 10. The method of claim 9, wherein the aging temperature comprises 20-90 ℃, the aging humidity comprises 40-70% rh, and the aging time comprises 2-72 hours.

Description

Performance improving device and method for PVA optical film Technical Field The invention relates to the technical field of performance improvement of optical films, in particular to a performance improvement device and method of a PVA optical film. Background The polarizing film, also called polaroid, is the core component for imaging of the liquid crystal display, and mainly comprises a PVA optical film, a TAC film, a release film, a PET film and the like, wherein the core functional layer is the PVA optical film. The PVA optical film is used as a core material for realizing the polarizing function of the polarizer, and the mechanical property of the PVA optical film determines the stretching multiplying power of PVA during the manufacture of the polarizer, so that the mechanical property of the PVA optical film needs to be improved on the basis of the prior art to improve the quality of the polarizer. In the prior art, the mechanical properties of PVA optical films have been determined after their production. For PVA optical films with mechanical properties which are not up to standard, the direct use can affect the quality of products such as subsequent polaroids, and if the products are directly recovered, the cost can be increased. Disclosure of Invention The invention aims to solve the problem that the performance of a PVA optical film influences the quality of products and the cost in the prior art, and provides a device and a method for improving the performance of the PVA optical film. In order to achieve the above object, an aspect of the present invention provides a performance enhancing apparatus for a PVA optical film, comprising: A case; The mounting assembly is arranged in the box body and is used for mounting and fixing the PVA optical film and driving the PVA optical film to rotate; The air supply assembly is arranged in the center of the top of the box body and is used for inputting constant-temperature and constant-humidity air into the box body; And the exhaust assembly is arranged at the side part of the box body and is close to the bottom end of the box body, and is used for being matched with the air supply assembly so that the constant temperature and humidity air is continuously conveyed in a flowing mode to the PVA optical film. Optionally, the mounting assembly comprises: the two groups of brackets are symmetrically arranged at the inner bottom of the box body; The two groups of rotating assemblies are symmetrically arranged at one ends of the two groups of brackets far away from the inner wall of the box body, and the output ends of the rotating assemblies are connected with the winding cores of the PVA optical film. Optionally, the air supply assembly includes: one end of the air supply pipeline is communicated with the box body; the air supply fan is arranged on the air supply pipeline; The heating component is arranged on the air supply pipeline and used for adjusting the temperature of air in the air supply pipeline; the humidity control assembly is arranged on the air supply pipeline and communicated with the air supply pipeline and used for adjusting the air humidity inside the air supply pipeline. Optionally, one end of the air supply pipeline is connected with an inverted U-shaped pipeline, and two ends of the inverted U-shaped pipeline are communicated with the box body. Optionally, the exhaust assembly includes: One end of the exhaust pipeline is communicated with the box body; The exhaust fan is arranged on the exhaust pipeline. Optionally, the exhaust assembly is provided with two groups, and the two groups of exhaust assemblies are respectively arranged on two opposite sides of the box body. Optionally, the method further comprises: Two groups of circulating pipelines are symmetrically arranged on the box body, one end of each circulating pipeline is communicated with the top of the box body, and the other end of each circulating pipeline is communicated with the side part of the box body; and the two groups of circulating fans are respectively arranged on the two groups of circulating pipelines. Optionally, the material of the bracket comprises stainless steel. In another aspect, the present invention also provides a method for improving performance of a PVA optical film using the performance improving apparatus as described above, including: placing the PVA optical film on the mounting assembly and securing the PVA optical film by the mounting assembly; the mounting assembly drives the PVA optical film to rotate; presetting ageing parameters, wherein the ageing parameters comprise ageing temperature, ageing humidity and ageing time; starting the air supply assembly and the air exhaust assembly to input flowing air with constant temperature and constant humidity into the box body; Acquiring the real-time temperature and humidity inside the box body; and controlling the air supply assembly according to the real-time temperature and the humidity in the box body. Opt