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Film holder and tenter device

A technology of holding mechanism and stenter machine, which is applied in the direction of thin material handling, transportation and packaging, and other household appliances, etc. It can solve the problems of high cost and labor, and achieve the effects of uniform horizontal physical properties, reduced bow deformation, and easy transformation

Inactive Publication Date: 2015-03-18
UBE IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to apply the existing equipment, it is necessary to replace the stenter chain and all the parts related to it, so it takes a lot of cost and labor.

Method used

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  • Film holder and tenter device
  • Film holder and tenter device
  • Film holder and tenter device

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0145] [Preparation and longitudinal stretching of polyimide film]

[0146]Using N,N-dimethylacetamide as a solvent, p-p-phenylenediamine (PPD) as a diamine component and 3,3',4,4'-biphenyltetracarboxylic acid as an acid component Anhydride (s-BPDA) undergoes a polymerization reaction to obtain a polyamic acid solution (polyimide precursor solution). The obtained polyamic acid solution is poured on a support (stainless steel plate), and a partially imidized self-supporting film is obtained by heating. This self-supporting film was stretched in the longitudinal direction by 7% at 120° C. using the longitudinal stretching apparatus disclosed in International Publication No. 2011 / 125662 to obtain a longitudinally stretched self-supporting film.

[0147] The longitudinal extension device used here has the structure shown below in detail. That is, the stretching device has: a delivery mechanism for sending out the film, a pick-up mechanism that picks up the film sent out from the...

experiment example 1

[0151] Experimental example 1: Bearing type (two; for example refer to Figure 8A )

[0152] Assemble two bearings 240 (grease-free bearings manufactured by Nankai Seiko Co., Ltd., model: SS6900ZZ, outer diameter 22mm x inner diameter 10mm x thickness 6mm) in the box-type base member 210 with the upper opening, and place them at predetermined positions Needle plate 220 (length 70mm × width 20mm × thickness 3mm), the needle plate 220 and the bearing 240 are fixed with screws. The sliding surfaces of the base member 210 and the bearing 240 are coated with tungsten disulfide for reducing sliding friction. The activity ratio of the needle plate 220 is 1.39.

experiment example 2

[0153] Experimental example 2: Bearing type (one; for example refer to Figure 8 )

[0154] The film holding mechanism was configured in the same manner as in Experimental Example 1 except that the number of bearings 240 incorporated in the base member 210 was set to one. The activity ratio of the needle plate 220 is 1.68.

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PUM

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Abstract

Provided is a film holder for a tenter device, the film holder being able to suppress a bowing phenomenon without making a great change to an existing manufacturing facility, and being applicable even under an arbitrarily defined manufacturing condition. A film holder (200) comprises a base member (210) which is secured to a tenter chain, and a pin plate (220) which is supported by the base member (210) to be movable in the direction of movement of the tenter chain. On the pin plate (220), a plurality of pins (230) that are stuck into a film in order to hold the film are provided in a protruding manner.

Description

technical field [0001] The present invention relates to a film holding mechanism for holding both lateral ends of a film, which is mounted on a tenter device for continuously conveying a film in a film manufacturing process such as a polyimide film. Background technique [0002] Films are used in various fields, and there are various kinds of films depending on their uses and the like. Among them, polyimide films have been used in various fields, especially in electronics and electrical fields, such as flexible printed circuits, due to their light weight and various excellent physical properties such as flexibility, film strength, and heat resistance. plate material and COF substrate material etc. [0003] In recent years, with the reduction in size and weight of electrical and electronic equipment such as computers, the size and weight of wiring boards and IC packaging materials used in them are also required to be smaller and lighter, and the wiring patterns applied to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C55/16B29C55/20B29L7/00
CPCB29K2079/08B65H20/20B29C55/20B29C41/12B29C55/143B29C39/14B29C39/38B29K2105/0073B29L2007/008B65H23/022
Inventor 池内博通山本刚平成田一贵
Owner UBE IND LTD