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Manufacturing method of rubber roller for heat fixing, and rubber roller for heat fixing

一种制造方法、橡胶辊的技术，应用在应用电荷图形的电记录工艺、应用电荷图形的电记录工艺的设备、应用等方向，能够解决水溶性粉末无法充分溶出、高海绵体等问题

Active Publication Date: 2020-04-14
SWCC SHOWA CABLE SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the conventional elution method, a skin layer (thin layer) of rubber is easily formed between the particles of the water-soluble powder, so the water-soluble powder cannot be fully eluted, and it is difficult to form a uniform and continuous foam rate ( Japanese: Sponge with high continuous foam rate

Method used

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  • Manufacturing method of rubber roller for heat fixing, and rubber roller for heat fixing
  • Manufacturing method of rubber roller for heat fixing, and rubber roller for heat fixing
  • Manufacturing method of rubber roller for heat fixing, and rubber roller for heat fixing

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0032] figure 1 It is a sectional view showing the manufacturing process of the heat-fixing rubber roller according to the embodiment of the present invention.

[0033] The cylindrical mold used in this embodiment is demonstrated.

[0034] Such as figure 1 As shown, the cylindrical mold 110 used in this embodiment is composed of an upright cylindrical mold 111, an upper plug body 112 and a lower plug body 113 fitted into the upper and lower parts of the cylindrical mold 111, respectively. Inside the upper plug body 112 and the lower plug body 113, there are mandrel holding holes 115, 116 for holding a metal mandrel 121 made of aluminum, iron, stainless steel, etc. as a base material in the cylindrical mold 111. concentric. A material injection hole 117 is provided on the lower plug body 113 , and a material discharge hole 118 is provided on the upper plug body 112 .

[0035] In the present embodiment, the cylindrical mold 111 of the cylindrical mold 110 configured in this ...

no. 2 Embodiment approach

[0055] Such as image 3 The shown roller having a three-layer structure in which a metal mandrel 121 is sequentially coated with a foamed silicone rubber layer 123 and a release resin layer 125 composed of a release resin tube can use the above-mentioned figure 1 The cylindrical mold 110 shown in . Below, refer to Figure 4 , and will be described focusing on the points of change between the second embodiment and the already described first embodiment.

[0056] Figure 4 It is a cross-sectional view showing the manufacturing process of the heat-fixing rubber roller coated with a mold release resin according to the second embodiment of the present invention. figure 1 Common parts are denoted by the same symbols.

[0057] Such as Figure 4 As shown, in the present embodiment, the releasable resin tube 125A is inserted into the inner side of the cylindrical mold 111 holding the upright cylindrical mold 110, and both ends thereof are bent and fixed. Then, the metal mandrel 1...

Embodiment

[0062] Hereinafter, the present invention will be described more specifically by way of examples, but the present invention is not limited by these examples.

[0063] (Example)

[0064] Such as figure 1 As shown, a metal mandrel 121 made of aluminum having an outer diameter of 18 mm and having an outer diameter coated with primer #101 (Prizema ー #101, manufactured by Shin-Etsu Chemical Co., Ltd. (Shin-Etsu Chemical Industry Co., Ltd., trade name)) was inserted. In the cylindrical mold 111, the upper plug body 112 and the lower plug body 113 are respectively fitted into the upper part and the lower part of the cylindrical mold 111 so as to keep them concentric.

[0065] In addition, 25 parts by mass of triethylene glycol was mixed with 130 parts by mass of fine granulated sugar powder having a particle diameter of 10 to 200 μm obtained by pulverizing commercially available fine granulated sugar and sieving, and 100 parts by mass of triethylene glycol was added to the mixture. ...

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Abstract

The present invention provides a method that can form uniform foam rubber with a high foaming rate by a dissolution method and thereby cheaply and stably produce a heat-fixing rubber roller with good fixability, and a rubber roller produced by this method. . The manufacturing method of this heat fixing rubber roller includes the steps of forming a rubber layer composed of a silicone rubber composition containing water-soluble sugar powder and triethylene glycol on the outer periphery of a metal mandrel; and vulcanizing the rubber layer. , a process of dissolving and removing the sugar powder and triethylene glycol to form a foam rubber layer.

Description

technical field [0001] The present invention relates to a method for producing a rubber roller used in a heat fixing section of an electrophotographic copier and a rubber roller for heat fixing produced by the method. Background technique [0002] In image forming devices such as electrophotographic copiers and laser printers, the following thermal fixing method is generally adopted: that is, toner composed of heat-melting resin is formed on recording paper by image forming methods such as electrophotographic, electrostatic recording, and magnetic recording. The image is fixed by heat. [0003] In such a thermal fixing method, conventionally, a roller having a structure in which a rubber layer made of silicone rubber or the like is provided on a metal mandrel such as aluminum, and the rubber layer is widely used as a fixing roller or a pressure roller. A roller having a layer of a fluororesin such as tetrafluoroethylene perfluoroalkyl vinyl ether copolymer (PFA) or polytetr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20F16C13/00
CPCB29L2031/767B29K2809/06B29K2609/06B29K2105/045B29K2209/06B29K2009/06B29C67/202B29L2009/00C08L83/04G03G15/2057B29K2705/00B29K2105/041B29K2105/24B29K2409/06C08J9/26C08J9/28C08J2201/026C08J2201/0422C08J2205/05C08J2383/04C08J2201/04G03G15/206C08K5/1545C08K5/103B29C35/02
Inventor 石川和久香月史朗日下成利山崎新司松泽秀美
Owner SWCC SHOWA CABLE SYST CO LTD
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