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Silicone rubber composition, fixing member, fixing roller, and manufacturing method of fixing member

A silicone rubber composition and a technology for rubber parts, which are applied in the direction of electric recording process applying charge pattern, equipment and instrument of electric recording process applying electric charge pattern, etc., can solve problems such as reduction of rubber elasticity and durability.

Pending Publication Date: 2019-08-16
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is also clear that although the pollution inside the machine is improved through these methods, it will also cause a decrease in the elasticity and durability of the rubber.

Method used

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  • Silicone rubber composition, fixing member, fixing roller, and manufacturing method of fixing member
  • Silicone rubber composition, fixing member, fixing roller, and manufacturing method of fixing member
  • Silicone rubber composition, fixing member, fixing roller, and manufacturing method of fixing member

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Embodiment Construction

[0063] The silicone rubber composition of the present invention is a silicone rubber composition used for forming a rubber member of a fixing member having a rubber member on the surface used in an electrophotographic image forming apparatus, and is characterized in that it is subjected to a test performed under predetermined conditions. In the measurement by air chromatography, the cumulative value of the amount of low-molecular components with a retention time of 10 minutes to 32 minutes is less than 1.5, and the cumulative value of the amount of high-molecular components with a retention time of 32 minutes to 37 minutes is more than 2.2. This feature is a technical feature common to or corresponding to the following embodiments.

[0064] As an embodiment of the present invention, preferably, the cumulative value of the low molecular weight component of the silicone rubber composition is below 1.3, and the cumulative value of the high molecular weight component of the silicon...

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Abstract

There is provided a silicone rubber composition forming a rubber member on a surface of a fixing member which is used in an electrophotographic image forming apparatus. The silicone rubber compositionincludes 1.5 or less of a low molecular weight component by a cumulative amount measured from 10 minutes to 32 minutes after starting retention in a head space gas chromatography measurement under apredetermined condition. The silicone rubber composition further includes 2.2 or more of a high molecular weight component by a cumulative amount from 32 minutes to 37 minutes after starting retentionin a head space gas chromatography measurement under the predetermined condition.

Description

technical field [0001] The present invention relates to a silicone rubber composition, a fixing member, a fixing roller and a method for producing the fixing member. More specifically, the present invention relates to a method for suppressing contamination of peripheral parts due to volatilization of low-molecular components in the silicone rubber and improving durability in a fixing member having a silicone rubber member used in an electrophotographic forming apparatus. Excellent silicone rubber composition for forming the rubber part. In addition, the present invention relates to a fixing member and a fixing roller including a rubber member made of the silicone rubber composition. In addition, the present invention relates to a method of manufacturing the fixing member. Background technique [0002] In an electrophotographic image forming apparatus (hereinafter referred to as “image forming apparatus”), a fixing roller, a fixing belt, and the like are used as a fixing me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/20
CPCG03G15/20G03G15/2064G03G15/2057G03G15/206G03G2215/2051C08L83/04C08G77/12C08G77/20C08L83/00C08G77/04
Inventor 松本好康安川裕之小贺浩史
Owner KONICA MINOLTA INC
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