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Electrically conductive floc and electrically conductive brush

A technology of conductivity and hair bundles, which is applied in the field of conductive brushes, can solve the problems of lost fiber production efficiency and variation, and achieve the effect of small length deviation

Inactive Publication Date: 2015-05-20
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cutting the fibers on the surface of the brush by shearing has the problems of fiber loss and poor production efficiency in the shearing process

Method used

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  • Electrically conductive floc and electrically conductive brush
  • Electrically conductive floc and electrically conductive brush
  • Electrically conductive floc and electrically conductive brush

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] In a 98% concentrated sulfuric acid solution of 1% by mass of resin, knead conductive furnace black having an average particle diameter of 0.035 μm in nylon 6 with a relative viscosity of 2.73 measured at 25° C. using an Ostwald viscometer to make The addition amount reaches 25% by mass to prepare conductive nylon 6 pellets. Melt the prepared pellets at a melting temperature of 280°C, discharge them from a round nozzle with a hole diameter of 0.3mm, let it cool, and then dilute the spinning oil with water for oiling, so that the yarn adhesion reaches 0.7% , undrawn filaments were taken up at a winding speed of 800 m / min. Next, at a temperature of 25°C and an absolute humidity of 16.6g / m 3The undrawn yarn was aged for 48 hours under the environment of the drawing machine, and then stretched at the supply roller speed of the drawing machine at 300m / min, the hot plate temperature at 170°C, and the drawing roller speed at 500m / min, and then use the down twisting On a thre...

Embodiment 2

[0094] Except that the conductive nylon 6 long fiber is wound 3000 times with a 3m skein winder to make a fiber bundle form of about 510,000 dtex, the same method as in Example 1 is used to prepare polyamide long fiber, conductive Hair bundles, brushes. The results are shown in Table 1.

Embodiment 3

[0096] Except that in the preparation of the conductive nylon 6 long fiber, it is discharged from the round hole mouth of 0.2 mm in the aperture, and 170 decitex and 40 filaments are made, so that the diameter of the conductive hair bundle is 15 μm, and the same method as in Example 2 is adopted. Methods Polyamide long fibers, conductive hair bundles and brushes were prepared. The results are shown in Table 1.

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Abstract

An electrically conductive floc is provided that does not need shearing in producing brushes with a smooth surface. The electrically conductive floc includes electrically conductive chemical fibers wherein said fibers have a diameter of 10 to 100 μm, a fiber length of 0.1 to 5 mm, and a fiber length variation of 5% or less.

Description

[0001] This application is a divisional application of the Chinese patent application with the application number 200980149056.0, the application date is December 1, 2009, and the invention title is "conductive hair bundle and conductive brush". technical field [0002] The present invention relates to a conductive bristle bundle and a conductive brush used in dry copiers, facsimile machines, printers, etc. of the electrophotographic recording system. Specifically, it relates to a conductive bristle bundle used for a conductive brush produced by electrostatic flocking and a conductive brush using the bristle bundle. Background technique [0003] In electrophotographic copiers, etc., conductive rollers are often used for the charging part, which is an important element in the form of electrostatic latent images, the cleaning part for removing residual toner or charges remaining on the photoreceptor, and the supply part for charging toner. However, in recent years, with the im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/60D01F1/09G03G15/02G03G21/00
CPCB05D1/16B05D5/12D01F1/09D01F6/60G03G15/0233G03G21/0035G03G2215/1642Y10T29/49117D01F6/90D06M11/74G03G21/06
Inventor 高永秀敏松村由隆石川繁治
Owner TORAY IND INC