Developing roller, developing device, and image formation device
A technology of developing roller and coating layer, which is applied in the direction of electric recording process applying charge pattern, equipment of electric recording process applying charge pattern, electric recording technique, etc. Occurrence of film, effect of excellent durable printing performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0094] As long as the polyol is a variety of polyols commonly used in the preparation of polyurethane, it is preferably at least one polyol selected from polyether polyols, polyester polyols, polyacrylate polyols, and polycarbonate polyols. .
[0095] Examples of polyether polyols include polyalkylene glycols such as polyethylene glycol, polypropylene glycol, and polypropylene glycol-ethylene glycol, polytetramethylene ether glycol, copolymerized polyols of tetrahydrofuran and alkylene oxide, and Various modifications thereof or mixtures thereof, etc.
[0096] Polyester polyol has two or more ester groups and two or more hydroxyl groups in the molecule. Examples of polyester polyols include condensation reaction products of dicarboxylic acids and polyhydric alcohols. As the dicarboxylic acid, for example, aromatic dicarboxylic acids such as phthalic acid, terephthalic acid, and isophthalic acid, and aliphatic dicarboxylic acids such as adipic acid and sebacic acid are cited....
Embodiment 1
[0200] (formation of primer layer)
[0201] The electroless nickel-plated shaft body (SUM22, diameter 10 mm, length 275 mm) was cleaned with ethanol, and the surface was coated with a silicone-based primer (trade name "PRIMER No. 16", manufactured by Shin-Etsu Chemical Co., Ltd. Co., Ltd.). The primer-treated shaft body was baked at 150° C. for 10 minutes in a Jill oven, and then cooled at room temperature for more than 30 minutes to form a primer layer on the outer peripheral surface of the shaft body.
[0202] (formation of elastic layer)
[0203] Next, a silicone rubber composition for forming an elastic layer was prepared as described below. That is, 100 parts by mass of dimethylpolysiloxane (polymerization degree 300) whose both ends are blocked by dimethylvinylsiloxane groups, 1 part by mass of BET specific surface area is 110m 2 / g of hydrophobized fumed silica (trade name "R-972", manufactured by NIPPON AEROSIL Co., Ltd.), 40 parts by mass, an average particle diame...
Embodiment 2
[0217] In addition to changing (c) the (meth)acrylate copolymer containing a hydroxyl group and a fluorine atom in an amount of 1% by mass to 10% by mass to 0.25 parts by mass, and silicon dioxide to 1.5 parts by mass, the same procedure was carried out. A coating layer resin composition was prepared in the same manner as in Example 1 to form a coating layer.
PUM
| Property | Measurement | Unit |
|---|---|---|
| kinematic viscosity | aaaaa | aaaaa |
| degree of polymerization | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More