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Production method of functional film and web conveying device

A manufacturing method and conveying device technology, applied in the direction of thin material handling, transportation and packaging, winding strips, etc., can solve the problems of easy generation of wrinkles, high retention force of material guide rollers, etc., and achieve the effect of inhibiting sliding

Active Publication Date: 2018-03-30
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the web guide roller of Patent Document 1 has a problem of being prone to wrinkling due to its high holding force.

Method used

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  • Production method of functional film and web conveying device
  • Production method of functional film and web conveying device
  • Production method of functional film and web conveying device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Next, examples will be given to describe the present invention in more detail. However, the present invention is by no means limited to these Examples.

[0067]

[0068] In a manufacturing facility of an optical compensation film for a liquid crystal display panel, the web conveying device according to the present embodiment is arranged before and after a coating section. The sheet conveyor will have 90mm outer diameter ( : diameter), a grooved roll with a length of 1850 mm was used as the first roll. The grooves formed on the outer peripheral surface of the first roller had a width of 1 mm, a depth of 0.2 mm, and a pitch of 20 mm. In addition, the web conveying device will have a smooth outer peripheral surface, with A flat roll having an outer diameter of 90 mm and a length of 1850 mm was used as the second roll. The outer peripheral surface of the second roll had a smoothness of Ra0.6 μm.

[0069] A magnetic gear is used as a transmission mechanism for tra...

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Abstract

The invention provides a method for manufacturing a functional film and a web conveyance device, which can suppress sliding, scratch, squeezing wrench and surface transfer printing. The method for manufacturing the functional film and the web conveyance device comprises the following steps: continuously feeding a material sheet with a first surface and a second surface; making the first surface side of the material sheet contact with a first roller with a first shaft for realizing passing of the material sheet, wherein the first roller performs driven rotation through a first friction surface between the first surface side of the material sheet; and making the second surface side of the material sheet contact with a second roller of the second surface side for realizing passing of the material sheet, wherein a rotation force from the first roller is transmitted to the second roller, and a second friction force between the second roller and the second surface side of the material sheet is smaller than the first friction force. The second roller is provided with a second shaft.

Description

technical field [0001] The invention relates to a method for manufacturing a functional film and a sheet conveying device. Background technique [0002] In recent years, the demand for functional films has increased. As one of the functional films, optical films are mentioned. Representative optical films include films having various functions, such as optical compensation films used as retardation plates in liquid crystal elements, antireflection films, and antiglare films. [0003] In order to manufacture such an optical film, generally, the web is continuously sent out from a wound web roll, a coating liquid is coated on one surface of the web, and the coating liquid is dried and then cured to form coatings of various compositions. film (functional film), and wound up on a web roll again. In the production of an optical film, a plurality of conveyance rollers are provided to guide movement of a web along a predetermined conveyance path. [0004] However, while the web...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H27/00
CPCB65H20/02B65H20/14B65H27/00B65H2403/40B65H2404/1316B65H2701/1752
Inventor 柿下健一
Owner FUJIFILM CORP
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