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Laminated seamless belt, its manufacturing method and imaging device containing the same

An imaging device, a seamless technology, applied in the direction of equipment, lamination, lamination device, etc. of the electrical recording process using charge patterns, which can solve the problems of low durability, poor creep performance, and unfavorable manufacturing costs

Inactive Publication Date: 2008-03-26
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a molding machine with a special processing function is required, which is disadvantageous in terms of manufacturing cost
Olefin materials such as polyethylene, polypropylene, etc. have poor creep properties, elongation and deformation will occur during continuous use, and the durability is low

Method used

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  • Laminated seamless belt, its manufacturing method and imaging device containing the same
  • Laminated seamless belt, its manufacturing method and imaging device containing the same
  • Laminated seamless belt, its manufacturing method and imaging device containing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0114] The conductive masterbatch A and the polyester thermoplastic elastomer were dry-blended, wherein the conductive masterbatch A was added in an amount of 0.5 parts by weight for every 100 parts by weight of the polyester thermoplastic elastomer. The mixture was kneaded at 210° C. using a twin-screw extruder. Granules of base material are thus obtained. The pellets were supplied to the hopper 11a of the lamination extruder as shown in FIG. 1 .

[0115] Pellets made of polyester thermoplastic elastomer are supplied to the hopper 11a. Start the single-screw extruder for the respective pellets. The number of revolutions of the gear pump 14a on the base material side was adjusted to 12.1 rpm, and the number of revolutions of the gear pump 14b on the outer layer material side was adjusted to 1.4 rpm. The molten resin is supplied to the right-angle die 13 .

[0116] The outer layer material and the base layer material were laminated to each other in a square die 13 set at a ...

Embodiment 2

[0118]The polyester thermoplastic elastomer, the conductive masterbatch A and the flame retardant masterbatch are dry mixed to form a base material, wherein the amount of the conductive agent is 0.5 parts by weight relative to the amount of the polymer component, and the amount of the flame retardant additive is relative to the entire tape The weight of is 25 parts by weight. These components were kneaded under the same conditions as in Example 1 using a twin-screw extruder. A laminated seamless belt of Example 2 was produced in the same manner as in Example 1 by using pellets composed of the base material obtained in this way. The belt has high formability.

Embodiment 3

[0120] The conductive masterbatch A of Example 2 was replaced with conductive masterbatch B to form the base material. The components were kneaded in the same manner as in Example 2. The content of the ion conductive agent was 0.7 parts by weight per 100 parts by weight of the polyester thermoplastic elastomer. The content of melamine was 25 parts by weight relative to the weight of the entire belt. A laminated seamless belt of Example 3 was produced in the same manner as in Example 1 by using pellets composed of the base material obtained in this way. The belt has high formability.

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Abstract

A laminated seamless belt having at least a base layer and an outer layer. The base layer contains a polyester thermoplastic elastomer as its main component. The base layer has a volume resistivity set to not less than 1.0x106(Omega.cm) nor more than 1.0x1011(Omega.cm). A volume resistivity of the outer layer is set to not less than 1.0x1011(Omega.cm) and not less than 10 times as large as that of the base layer. The base layer and the outer layer are formed by laminated extrusion.

Description

technical field [0001] The present invention relates to a laminated seamless belt and a manufacturing method thereof, which is particularly suitable for use as an intermediate transfer belt of image forming equipment such as copiers, color copiers, and the like. Background technique [0002] In an image forming apparatus, a tone image is formed on a photoconductor and transferred to an intermediate transfer unit, and then transferred to a transfer body (mainly paper). A conductive seamless belt (hereinafter referred to as belt) is used as the intermediate transfer belt. The intermediate transfer belt runs under tension on the drive shaft for a long time. Therefore, the intermediate transfer belt is required to be durable. In addition, since the intermediate transfer belt is repeatedly charged and discharged, it is also required that the intermediate transfer belt maintains sufficient charge without causing uneven transfer due to a drop in potential difference and resistanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/16G03G15/00B28B1/24B29C47/04B29C47/06B29C48/90B29K67/00B29L29/00B32B27/18B32B27/36B32B37/15
CPCB32B37/153B29L2031/7094B29L2029/00B29C47/26B29C47/902B29L2031/7092G03G15/1685B29C47/065B29C47/0023B32B27/36B32B2433/00B29C48/09B29C48/21B29C48/335B29C48/902Y10T428/263Y10T428/2495Y10T428/24942Y10T428/24967Y10T428/31786B29C48/04B32B27/08B32B27/18B32B2413/00B32B2274/00
Inventor 田中雅和服部高幸
Owner SUMITOMO RUBBER IND LTD
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