JP2007033705A5

JP2007033705A5 -

Info

Publication number: JP2007033705A5
Application number: JP2005215023A
Authority: JP
Filing date: 2005-07-25
Publication date: 2008-09-04

Description

（１）第１の態様は、前記樹脂系繊維のヤング率が、３〜２５ＧＰａである態様である。
（２）第２の態様は、前記基材の３％伸び時の永久伸び率が２％以下である態様である。
（３）第３の態様は、前記基材中のゴム成分のうち、主たるゴム成分のＳＰ値（ＳＰ１）と前記樹脂粒子のＳＰ値（ＳＰ２）との関係が、｜ＳＰ１−ＳＰ２｜≦２である態様である。
（４）第４の態様は、前記基材中のゴム成分１００質量部に対して、前記樹脂粒子が２０〜５０質量部、前記樹脂系繊維が１０〜３０質量部、前記異なる２種類以上のカーボンブラックが合計で、２０〜５０質量部含まれる態様である。
（５）第５の態様は、前記基材の体積抵抗率が１×１０ ^８〜１×１０ ^１２Ωｃｍである態様である。
（６）第６の態様は、前記表面層がトナー離型層である態様である。 (1) A 1st aspect is an aspect whose Young's modulus of the said resin fiber is 3-25GPa.
(2) A 2nd aspect is an aspect whose permanent elongation rate at the time of 3% elongation of the said base material is 2% or less.
(3) In the third aspect, among the rubber components in the base material, the relationship between the SP value (SP1) of the main rubber component and the SP value (SP2) of the resin particles is | SP1-SP2 | ≦ 2. This is an embodiment.
(4) In the fourth aspect, 20 to 50 parts by mass of the resin particles, 10 to 30 parts by mass of the resin fiber, and two or more different types of the rubber component in 100 parts by mass of the base material. This is an embodiment in which 20 to 50 parts by mass of carbon black is contained in total.
(5) fifth aspect, volume resistivity of the substrate is a mode which is ^{^{1 × 10 8 ~1 × 10 12}} Ωcm.
(6) A sixth aspect is an aspect in which the surface layer is a toner release layer.

Claims

A semiconductive belt having a surface layer formed on a substrate,
A semiconductive belt characterized in that the base material contains at least resin particles, resin fibers, and two or more different types of carbon black.

The semiconductive belt according to claim 1, wherein the resin fiber has a Young's modulus of 3 to 25 GPa .

The semiconductive belt according to claim 1 or 2, wherein the base material has a permanent elongation rate of 2% or less at 3% elongation .

The relationship between the SP value (SP1) of the main rubber component and the SP value (SP2) of the resin particles among the rubber components in the base material is | SP1-SP2 | ≦ 2. The semiconductive belt according to any one of 1 to 3.

The resin particles are 20 to 50 parts by mass, the resin fibers are 10 to 30 parts by mass, and the two or more different types of carbon blacks are 20 to 50 in total with respect to 100 parts by mass of the rubber component in the substrate. The semiconductive belt according to claim 1, further comprising a mass part.

6. The semiconductive belt according to claim 1, wherein the substrate has a volume resistivity of 1 × 10 ⁸ to 1 × 10 ¹² Ωcm .

The semiconductive belt according to any one of claims 1 to 6, wherein the surface layer is a toner release layer .

An image forming apparatus comprising the semiconductive belt according to claim 1 .

9. The apparatus according to claim 8, further comprising an image carrier and the semiconductive belt facing the image carrier, wherein an image formed on the image carrier is transferred to a recording material through the semiconductive belt. The image forming apparatus described .

The image forming apparatus according to claim 9, wherein the semiconductive belt is stretched by a plurality of stretching rolls and is arranged in contact with the drum-shaped image carrier .

The image forming apparatus according to claim 8, wherein the semiconductive belt is used as an intermediate transfer belt .

The image forming apparatus according to claim 8, wherein the semiconductive belt is used as a sheet conveying belt .

The image forming apparatus according to claim 8, wherein a spherical toner having a shape factor SF defined by the following formula (1) of 140 to 100 is used.
Formula (1):
SF = [(maximum length of toner particles) ²² / (Projection area of toner particles)] × π / 4 × 100