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Contacting member, drying device, and printing apparatus

A contact part, indirect technology, applied in the direction of printing, printing device, printing machine roll coat, etc., to achieve the effect of preventing abnormal images

Active Publication Date: 2022-01-11
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in such delivery devices, those that are in direct contact with the area to which the liquid composition has been applied may cause undesirable phenomena, wherein the liquid composition is transferred to the delivery device

Method used

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  • Contacting member, drying device, and printing apparatus
  • Contacting member, drying device, and printing apparatus
  • Contacting member, drying device, and printing apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0179] A further understanding of the present disclosure may be obtained by reference to certain specific examples which are provided below for purposes of illustration, but not limitation of the disclosure.

preparation example

[0181] First, carbon black (NIPEX160, manufactured by DEGUSSA Co., Ltd., with a BET specific surface area of ​​150m 2 / g, average primary particle size 20nm, pH4.0, DBP oil absorption 620g / 100g) 20g, with 20 millimoles of the compound shown in the following structural formula (1), and ion-exchange high-purity water 200mL at room temperature, in a Silverson mixer (6,000rpm) for mixing.

[0182] When the pH value of the resulting slurry was higher than 4, 20 millimoles of nitric acid was added. After 30 minutes, sodium nitrite (20 mmol) dissolved in a small amount of ion-exchanged high-purity water was slowly added to the above mixture. Furthermore, it heated to 60 degreeC, stirring, and was made to react for 1 hour. In carbon black, a modified pigment to which a compound represented by the following structural formula (1) is added can be produced.

[0183] Second, the pH value was adjusted to 10 by NaOH aqueous solution, and the modified pigment dispersion was obtained after...

Embodiment 1

[0191] [Manufacture of contact parts]

[0192] On the base surface of an aluminum hollow roll (manufactured by MISMI Corporation) with a diameter of 75mm, an adhesive layer formed by coating a silicone-based adhesive on TommyFirec PA5LH (monofilament, manufactured by Bachuan Paper Co., Ltd.) of fluororesin fibers was pasted. . After the adhesive is cured, use a pressurizing device consisting of three stainless steel rollers to rotate the roller wound with fluororesin fiber for two turns at a rotation speed of 10 seconds / cycle while pressing at a linear pressure of 50kg / cm. A contact member 1 having a fluororesin fiber layer was fabricated.

[0193] [Access ratio X and Y of fluororesin fibers]

[0194] The fiber layer is cut perpendicular to the surface direction of the fiber layer to form a cross-section. Next, mapping of fluorine components was performed on the cross section. It was performed using an EDS (energy dispersive X-ray spectroscopy) elemental analyzer (Phenom P...

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Abstract

The invention provides a contacting member that contacts a region of a contacted member to which a liquid composition has been applied. The contacting member comprises a substrate and a fluororesin fiber layer containing a fluororesin fiber. One side of the fluororesin fiber layer is directly or indirectly fixed to the substrate and another side of the fluororesin fiber layer contacts the contacted member. A ratio X / Y is less than 1.00, where X is a presence ratio of the fluororesin fiber in the fluororesin fiber layer on the side which is directly or indirectly fixed to the substrate and Y is a presence ratio of the fluororesin fiber in the fluororesin fiber layer on the other side which contacts the contacted member.

Description

technical field [0001] The invention relates to a contact part, a drying device and a printing device. Background technique [0002] In a printing device such as an inkjet device, a conveying device for conveying a printing material (for example, cut paper) is provided, and the conveying device conveys the printing material to a liquid composition imparting device for imparting a liquid composition (for example, inkjet ink), or heats A liquid composition heater that imparts a liquid composition to dry it. There are various conveying means, and a plurality of rollers spaced apart in the axial direction are often used. [0003] However, among such delivery devices, those that are in direct contact with the area to which the liquid composition has been applied may cause an undesired phenomenon, wherein the liquid composition is transferred to the delivery device. [0004] Patent Document 1 discloses a roller for conveying printing materials in a device having a printing funct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J11/00
CPCB41J11/002B32B1/08B32B5/02B32B15/14B32B2250/02B32B2260/021B32B2260/046B32B2262/0238B32B2597/00B41N7/00B65H27/00B41J11/0024B32B7/12B32B2262/02B41J13/076B32B2307/554
Inventor 水谷佑树玉井智广
Owner RICOH KK
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