JP2006154711A - Heat insulating resin material, fixing member, fixing device and image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulating resin material whose hardness as well as heat insulating performance can be enhanced, a heat insulating resin material whose heat insulating performance and hardness can be arbitrarily adjusted without spoiling the heat insulating performance, a fixing member using the heat insulating resin material whose heat insulating performance and hardness can be arbitrarily adjusted without spoiling the heat insulating performance, a fixing device with the fixing member, and an image forming apparatus with the fixing device. <P>SOLUTION: The heat insulating resin material is configured such that a solid material having heat insulating performance is contained in a silicone resin, wherein an organic solvent is contained in the silicone resin. Alternatively, the heat insulating resin material is configured such that a solid material having heat insulating performance is fixed and shaped with a silicone resin, wherein an organic solvent is contained in the silicone resin. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a heat insulating resin material having a silicone resin, a fixing member such as a pressure roller and a fixing roller for fixing a toner image formed of the heat insulating resin material and transferred to a recording medium by heating and pressing, and a fixing member thereof. The present invention relates to a fixing device having an electrophotographic image forming apparatus having the fixing device.

  Conventionally, in order to improve heat insulation, the heat-resistant heat-insulating resin material has a structure in which a gas having high heat-insulating performance is included in the resin as bubbles. The encapsulated gas is in the form of independent bubbles or continuous voids. When the shape of the bubbles or voids changes due to heating, pressurization, or the like, in addition to temporarily changing the volume as the heat insulating material, the heat insulating material undergoes permanent deformation due to permanent distortion.

  Therefore, a fixing member such as a pressure roller formed of a heat-resistant heat insulating resin material has a multi-layer structure for the purpose of preventing permanent deformation due to permanent distortion or preventing the change of the roller shape. Has been proposed (see, for example, Patent Document 1).

  In addition, independent bubbles and continuous voids contained in the resin are greatly deformed when compressed compared to the resin constituting the layer, and the hardness of the resin in which the bubbles and voids are contained is only for the resin. If it is necessary to ensure the hardness of the resin layer, it is possible to reduce the number of independent bubbles or continuous voids contained in the resin layer, or to reduce the thickness of the layer, or a layer with high hardness. A method of forming a plurality of layers having a multi-layer structure, that is, a multilayer structure (multilayer structure) is used.

  In addition, as a means for further increasing the hardness of the resin layer, a method in which a resin serving as a base material contains a resin filler or a solid filler having a higher hardness than this is used. However, these fillers have high thermal conductivity, and there is a limit to the amount to be added to increase the hardness.

  By the way, an image forming apparatus such as an electrophotographic laser printer or a copying machine transfers and attaches a printing material such as toner onto a recording medium (paper) via a photoconductor or directly, and heats and pressurizes it. Then, the printing material is fixed on the recording medium.

  In the fixing device used in this image forming apparatus, an IH coil and a heating element are disposed outside the heat roller, and a pressure roller is disposed in pressure contact with the heat roller. A high frequency electromagnetic wave generated by the IH coil is irradiated to a heating element that generates heat by induction, and the heat generation roller is heated using heat generated by an eddy current generated in the heating element as a result of irradiation with the electromagnetic wave. The recording medium (paper) onto which the printing material such as toner is transferred passes through the portion (nip portion) where the heated heat roller and the pressure roller are in contact with each other, so that the printing medium and the printing material are heated and The printing material is fixed to the recording medium under pressure.

Further, as another example of the fixing device, there is a type using a heat generating roller provided with a halogen heater inside as a heat source. The heat generated by the heat generating roller is used not only to increase the temperature of the printing material (paper) such as toner but also to increase the temperature of the pressure roller in contact with the heat generating roller.
JP-A-6-27850

  As described above, the conventional heat-resistant heat-insulating resin material has the following problems (1) to (5).

  (1) In order to improve the heat insulation properties, the resin has a structure in which a gas having high heat insulation performance is included in the form of independent bubbles or continuous voids. By changing the shape, not only the volume as the heat insulating material changes temporarily, but also permanent deformation due to permanent distortion occurs.

  (2) When a multi-layer structure is used in order to prevent a change in the roller shape of the pressure roller, not only joining at the interface between the constituent materials is required, but also causing peeling.

  (3) Independent bubbles and continuous voids encapsulated in the resin are greatly deformed when compressed compared to the resin constituting the layer, and the hardness of the resin in which such bubbles and voids are encapsulated is It will be lower than the case of only.

  (4) When it is necessary to ensure the hardness of the resin layer, the number of contained independent bubbles or continuous voids is reduced, the thickness of the layer is reduced, or a plurality of layers having a high hardness layer It was necessary to make (multi-layer structure), and it took time and effort to produce a heat-resistant heat-insulating resin material.

  (5) As a means for further increasing the hardness of the resin layer, a method in which a resin filler or a solid filler having a hardness higher than that of the base resin is used is used. These fillers have high thermal conductivity, and there is a limit to the amount to be added in order to increase the hardness, making it difficult to adjust the resin layer to a desired hardness.

  In addition, in the above-described conventional heat-resistant heat-insulating resin material, in order to satisfy both heat-insulating performance and hardness, organic materials such as resin materials, glass, metal, ceramic hollow bodies or foams or closed-cell bodies to the resin layer When kneading, the hollow structure is broken and the heat insulation performance is impaired.

  Further, in the above-described conventional image forming apparatus, the heat generated by the heat generating roller is diffused through the pressure roller in contact with the heat generating roller, so that the temperature inside the fixing device rises. Therefore, it has been necessary to dissipate the heat inside the apparatus. In addition, as described above, since it is necessary to perform extra heating to replenish the lost heat amount diffused through the pressure roller, there is a problem in that the power consumption of the image forming apparatus is increased. It was.

  Then, an object of this invention is to provide the heat insulation resin material which can improve heat insulation performance.

  Moreover, an object of this invention is to provide the heat insulation resin material which can improve heat insulation performance and can raise hardness.

  Furthermore, an object of this invention is to provide the heat insulation resin material which can adjust heat insulation performance and hardness arbitrarily, without impairing heat insulation performance.

  Furthermore, the present invention provides a fixing member using a heat insulating resin material capable of arbitrarily adjusting the heat insulating performance and hardness without impairing the heat insulating performance, a fixing device having the fixing member, and an image forming apparatus having the fixing device. The purpose is to provide.

  In order to solve this problem, the heat insulating resin material of the present invention has a structure in which a solid material having heat insulating performance is contained in a silicone resin and an organic solvent is contained in the silicone resin.

  In order to solve this problem, the heat insulating resin material of the present invention has a structure in which a solid material having heat insulating performance is fixedly molded with a silicone resin and an organic solvent is contained in the silicone resin.

  In a preferred embodiment of the present invention, the organic solvent is in a liquid state at room temperature, and is a single compound or a plurality of kinds of saturated aliphatic compounds, unsaturated aliphatic compounds and aromatic compounds. It is a combination of compounds.

  In a further preferred embodiment of the present invention, the organic solvent is toluene, benzene, xylene, propane, butane, pentane, hexane, heptane, octane, nonane, decane, dodecane, methanol, ethanol, propanol, butanol, tetrahydrofuran, acetonitrile, dimethyl. A compound or isomer of formamide or dimethyl sulfoxide, or a mixture of a plurality of any of the plurality of compounds.

  In a further preferred embodiment of the present invention, the content of the organic solvent is 5 percent or less by weight with respect to the mixture of the solid material and the silicone resin.

  In a further preferred aspect of the present invention, the solid material is a hollow body made of an organic material such as a resin material, glass, metal, or ceramic.

  In a further preferred aspect of the present invention, the solid material is an organic substance such as a resin material, glass, metal, or ceramic foam.

  In a further preferred embodiment of the present invention, the heat insulating properties and hardness of the own material are adjusted based on the content of the solid material.

  In a further preferred embodiment of the present invention, the solid material is contained in the silicone resin in a volume ratio of 30% to 70%.

  In order to solve this problem, the fixing member of the present invention is a member for fixing unfixed toner transferred to a recording medium to the recording medium, and the fixing member according to any one of claims 1 to 9. The heat insulating resin material is used.

  In order to solve this problem, the fixing member of the present invention is a roller-shaped member that fixes unfixed toner transferred to a recording medium to the recording medium, and is formed on the surface of the roller-shaped member. It is set as the structure by which the heat insulation resin material as described in any one of Claims 1-9 is formed.

  In a further preferred aspect of the present invention, the hardness of the heat insulating resin material is greater than the hardness of the silicone resin alone.

  In a further preferred embodiment of the present invention, the heat insulating resin material has an Asker C hardness of 50 to 95.

In order to solve this problem, a fixing device of the present invention is a fixing device that fixes an unfixed toner image transferred to a recording medium to the recording medium, and includes any one of claims 10 to 13. And a fixing member described in (1).

  In a preferred form of the invention, the heating is by electromagnetic induction.

  In a further preferred form of the invention, the heating is by a halogen heater.

  In order to solve this problem, an image forming apparatus of the present invention is an image forming apparatus that forms a toner image corresponding to an electrostatic latent image, transfers the toner image to a recording medium, and fixes the toner image to the recording medium. The toner image is fixed on the recording medium, and the fixing device according to any one of claims 14 to 16 is provided.

  According to the present invention, it is possible to improve the heat insulation performance of the heat insulating resin material and to increase the hardness of the heat insulating resin material by including many solid materials in the silicone resin. It is done.

  Further, according to the present invention, the heat-insulating resin can be fixed in the silicone resin without damaging the fixing material as the heat-insulating material by dissolving or swelling the silicone resin before curing with an organic solvent. The heat insulation performance of the material can be improved, and an effective effect that the hardness of the heat insulation resin material can be increased is obtained.

  Furthermore, according to the present invention, the heat-insulating resin can be fixed in the silicone resin without damaging the fixing material as the heat-insulating material by dissolving or swelling the silicone resin before curing with an organic solvent. The heat insulation performance of the material can be improved, and an effective effect that the hardness of the heat insulation resin material can be increased is obtained.

  Furthermore, according to the present invention, the silicone resin before curing is dissolved or swollen with an organic solvent, so that the fixing material for the hollow body or the foamed body as the heat insulating material can be fixed in the silicone resin without damaging it. Therefore, it is possible to improve the heat insulation performance of the heat insulating resin material and to obtain an effective effect that the hardness of the heat insulating resin material can be increased.

  Furthermore, according to the present invention, by adjusting the content of the solid material, it is possible to arbitrarily adjust the heat insulating performance and hardness of the heat insulating resin material without impairing the heat insulating performance of the heat insulating resin material. Is obtained.

  Furthermore, according to the present invention, a fixing member using a heat insulating resin material capable of arbitrarily adjusting the heat insulating performance and hardness without impairing the heat insulating performance, a fixing device having the fixing member, and an image having the fixing device An effective effect that a forming apparatus can be provided is obtained.

  The invention according to claim 1 of the present invention is a heat insulating resin material in which a solid material having heat insulating performance is contained in a silicone resin and an organic solvent is contained in the silicone resin. By dissolving or swelling with an organic solvent, the fixing material as the heat insulating material can be contained in the silicone resin without damaging it, so that the heat insulating performance of the heat insulating resin material can be improved, and the heat insulating resin It has the effect | action that the hardness of material can be raised.

  The invention according to claim 2 of the present invention is a heat insulating resin material in which a solid material having heat insulating performance is fixedly molded with a silicone resin and an organic solvent is contained in the silicone resin, and the silicone resin before curing Can be fixed in the silicone resin without damaging the fixing material as a heat insulating material by dissolving or swelling it with an organic solvent, so that the heat insulating performance of the heat insulating resin material can be improved and heat insulating It has the effect | action that the hardness of a resin material can be raised.

  The invention according to claim 3 of the present invention is the invention according to claim 1 or 2, wherein the organic solvent is in a liquid state at room temperature, and comprises a saturated aliphatic compound, an unsaturated aliphatic compound, and a fragrance. It is a heat insulating resin material that is a combination of one type of compounds or a plurality of types of compounds, and the hardness or viscosity of the silicone resin is reduced using an organic solvent. It is possible to prevent the fixing material from being damaged, and to maintain the original heat insulating property of the fixing material.

  The invention according to claim 4 of the present invention is the invention according to claim 3, wherein the organic solvent is toluene, benzene, xylene, propane, butane, pentane, hexane, heptane, octane, nonane, decane, dodecane, methanol, Ethanol, propanol, butanol, tetrahydrofuran, acetonitrile, dimethylformamide or dimethyl sulfoxide compound or isomer, or a heat insulating resin material that is a mixture of any of a plurality of compounds, silicone using an organic solvent Since the hardness or viscosity of the resin is lowered, the fixing material as the heat insulating material can be prevented from being damaged, and the original heat insulating property of the fixing material can be maintained.

  The invention according to claim 5 of the present invention is the invention according to any one of claims 1 to 4, wherein the content of the organic solvent is 5 percent by weight with respect to the mixture of the solid material and the silicone resin. It is a heat insulating resin material that is less than or equal to a percentage, and the organic resin is used to reduce the hardness or viscosity of the silicone resin, so that the fixing material as a heat insulating material can be prevented from being damaged, and the heat insulation inherent to the fixing material Has the effect of maintaining the sex.

  The invention according to claim 6 of the present invention is the heat insulating resin according to any one of claims 1 to 5, wherein the solid material is a hollow body of an organic substance such as a resin material, glass, metal, or ceramic. It is a material and can be fixed in the silicone resin without damaging the hollow body fixing material as a heat insulating material by dissolving or swelling the silicone resin before curing with an organic solvent. The heat insulation performance can be improved and the hardness of the heat insulation resin material can be increased.

  The invention according to claim 7 of the present invention is the heat insulation according to any one of claims 1 to 5, wherein the solid material is an organic substance such as a resin material, glass, metal, or ceramic foam. It is a resin material, and it can be fixed in the silicone resin without damaging the fixing material of the foam as a heat insulating material by dissolving or swelling the silicone resin before curing with an organic solvent. The heat insulating performance of the material can be improved and the hardness of the heat insulating resin material can be increased.

  The invention according to claim 8 of the present invention is the heat insulation according to any one of claims 1 to 7, wherein the heat insulation characteristics and hardness of the own material are adjusted based on the content of the solid material. It is a resin material, and has the effect | action that the heat insulation performance and hardness of a heat insulation resin material can be adjusted arbitrarily, without impairing the heat insulation performance of a heat insulation resin material by adjusting content of a solid material.

  The invention according to claim 9 of the present invention is the heat insulating resin material according to any one of claims 1 to 8, wherein the solid material is contained in the silicone resin in a volume ratio of 30% to 70%. Since the volume ratio for the fixing material as the heat insulating material with respect to the silicone resin is set to 30% to 70%, it is possible to realize a high altitude, for example, 50 to 95, as compared with the case of the silicone resin alone with Asker C hardness. The heat insulation performance and hardness of the heat insulation resin material can be arbitrarily adjusted without impairing the heat insulation performance of the heat insulation resin material.

  In the invention described in claim 10 of the present invention, in the invention described in any one of claims 1-9, the main component of the silicone resin used as the heat insulating resin material is polysiloxane represented by polydimethylsiloxane. Yes, the side chain of the molecular structure constituting the polysiloxane and both ends are hydrogen atom, methyl derivative, ethyl derivative, propyl derivative, methoxy derivative, ethoxy derivative, amino derivative, carboxyl derivative, phenyl derivative, phenol derivative, epoxy A derivative, a mercapto derivative, a vinyl derivative, a polyether derivative, or a fatty acid ester derivative, which has various heat insulation properties, hardness, adhesiveness, etc. when used as a roller for a fixing member It has the effect of being able to meet a wide range of requests.

  According to an eleventh aspect of the present invention, in the invention according to any one of the first to tenth aspects, the heat insulating resin material has an Asker C hardness of 60 to 95, and a thermal conductivity of 0.00. Since it is set to 20 [W / K · m] or less, it is possible to greatly shorten the time required to reach a predetermined fixing temperature at the time of rising (warming up) and simultaneously set the nip width suitable for printing. It has the effect of becoming possible.

  An invention according to claim 12 of the present invention is a member for fixing unfixed toner transferred to a recording medium to the recording medium, and the heat insulating resin according to any one of claims 1 to 11. It is a fixing member having a material and has an effect that a fixing member using a heat insulating resin material capable of arbitrarily adjusting the heat insulating performance and the hardness without impairing the heat insulating performance can be provided. As a result, the fixing member having high heat insulation performance and high altitude has an effect of not taking away heat applied for fixing.

  According to a thirteenth aspect of the present invention, there is provided a roller-like member for fixing the unfixed toner transferred to the recording medium to the recording medium, wherein the surface of the roller-like member is arranged on the surface of the roller-like member. A fixing member using the heat insulating resin material, wherein the heat insulating resin material according to claim 11 is formed, and the heat insulating performance and hardness can be arbitrarily adjusted without impairing the heat insulating performance. Can be provided. As a result, the fixing member having high heat insulation performance and high altitude has an effect of not taking away heat applied for fixing.

  The invention according to claim 14 of the present invention is the fixing member in which the hardness of the heat insulating resin material in the invention according to claim 12 or 13 is larger than the hardness of the silicone resin alone, without impairing the heat insulating performance. The fixing member using the heat insulating resin material capable of arbitrarily adjusting the heat insulating performance and the hardness can be provided. As a result, the fixing member having high heat insulation performance and high altitude has an effect of not taking away heat applied for fixing.

  Invention of Claim 15 of this invention is a fixing member whose Asker C hardness of heat insulation resin material is 50-95 in invention in any one of Claims 12-14, and has heat insulation performance. The fixing member using the heat insulating resin material capable of arbitrarily adjusting the heat insulating performance and the hardness without damaging can be provided. As a result, the fixing member having high heat insulation performance and high altitude has an effect of not taking away heat applied for fixing.

  The invention according to claim 16 of the present invention is a fixing device for fixing an unfixed toner image transferred to a recording medium to the recording medium, and the fixing apparatus according to any one of claims 12 to 15. A fixing device having a fixing member, and having a function of providing a fixing device having a fixing member using a heat insulating resin material capable of arbitrarily adjusting the heat insulating performance and hardness without impairing the heat insulating performance. . As a result, the fixing device having a fixing member having high heat insulation performance and hardness does not take away the heat applied for fixing, so that the time to reach a predetermined fixing temperature can be greatly shortened. Has the effect of being able to.

  The invention described in claim 17 of the present invention is the fixing device according to the invention described in claim 16, wherein the heating is based on electromagnetic induction action, and is heated by electromagnetic induction action, and has high heat insulation performance and hardness. Since the fixing device having the fixing member does not take away heat applied for fixing, it has an effect that the time required to reach a predetermined fixing temperature can be greatly shortened.

  According to an eighteenth aspect of the present invention, there is provided a fixing device according to the sixteenth aspect, wherein the heating is performed by a halogen heater, the fixing member being heated by the halogen heater and having high heat insulation performance and hardness. Since the fixing device having the function can suppress the removal of heat applied for fixing, the fixing device has an effect that the time required to reach a predetermined fixing temperature can be greatly shortened.

  According to a nineteenth aspect of the present invention, there is provided an image forming apparatus for forming a toner image corresponding to an electrostatic latent image, transferring the toner image to a recording medium, and fixing the toner image on the recording medium. An image forming apparatus having the fixing device according to any one of claims 16 to 18, wherein heat applied for fixing is deprived by the fixing member. Since it can be suppressed, the consumption of running energy can be kept low, and the time to reach a predetermined fixing temperature at the time of start-up (warming up) can be greatly shortened. In addition, the image forming apparatus as a whole has an effect that significant energy saving can be realized by keeping consumption energy low.

  In the invention according to claim 20 of the present invention, the solid material having heat insulation performance is contained in the silicone resin, and heat insulation, that is, low thermal conductivity is 0.20 [W / K · m] or less and high hardness. It satisfies a certain Asker C hardness 60 to 95 at the same time. As a result, the time required to reach a predetermined fixing temperature at the time of rising (at the time of warming up) can be significantly shortened, and the setting of a nip width suitable for printing can be achieved at the same time.

  The invention according to claim 21 of the present invention is such that the solid material having heat insulation performance is fixedly molded with a silicone resin, and heat insulation, that is, low thermal conductivity is 0.20 [W / K · m] or less and high hardness. And satisfying the Asker C hardness of 60 to 95 at the same time. As a result, the time required to reach a predetermined fixing temperature at the time of rising (at the time of warming up) can be significantly shortened, and the setting of a nip width suitable for printing can be achieved at the same time.

  Hereinafter, the best mode for carrying out the present invention will be described more specifically with reference to the drawings. Here, in the accompanying drawings, the same reference numerals are given to the same members, and duplicate descriptions are omitted. In addition, since description here is the best form by which this invention is implemented, this invention is not limited to the said form.

(Embodiment 1)
FIG. 1 is a configuration diagram showing a schematic configuration of a heat insulating resin material according to Embodiment 1 of the present invention.

  A heat insulating resin material 100 shown in FIG. 1 contains or fixes a solid material 2 having heat insulating performance in a silicone resin 1.

  That is, the heat insulating resin material 100 is prepared by dissolving and swelling the silicone resin 1 using a toluene organic solvent, and then mixing and dispersing the solid material 2 into the dissolved and swollen silicone resin 1. .

  In this manner, the solid material 2 having high heat insulating properties and low heat capacity is contained or fixed in the silicone resin 1. Thereby, the weight per unit volume of the silicone resin 1 can be reduced. In addition, since the silicone resin 1 is dissolved and swollen in a toluene organic solvent and the solid material 2 is mixed and dispersed, the toluene residual solvent contains 0.1 [wt%].

  Examples of the solid material 2 include a heat insulating material having lower heat transfer characteristics and higher heat resistance than the silicone resin 1. For example, there are carbon materials such as carbon resin and carbon graphite, porous carbon materials, plant materials such as cork and wood chips, and carbonized cork and wood chips. Further, there are hollow bodies or foams of soda lime silicic acid or silicic acid glass such as silicone glass, lead glass, silicate glass, phosphoric acid glass, metal and ceramics.

  Furthermore, as the solid material 2, a heat resistant resin material such as a fluororesin, a low molecular silicone resin, an epoxy resin, or a phenol resin, or a foam or a hollow body of these heat resistant resin materials may be used.

  Among the specific examples of the solid material 2 described above, silicate glass is desirable as the solid material 2 because of its high hardness and uniformity of particle size.

  When the particle system distribution of the hollow body of the solid material 2 is appropriately distributed, it is possible to express a filling rate of 74% or more, which cannot be achieved by a single particle system distribution.

Here, the solid material 2 will be described with specific examples. The solid material 2 is preferably hollow silicon beads. As the hollow silicon beads, those having a particle size of 10 to 150 [μm] and a bulk density of 0.07 to 0.8 [g / cm ³ ] are used. be able to. Preferably, those having a particle size of 30 to 70 [μm] and a bulk density of 0.1 to 0.6 [g / cm ³ ] in terms of pressure strength and hollowness are desirable.

  Since the volume of the silicone resin 1 is reduced by containing or fixing the solid material 2 having a high heat insulating property in the silicone resin 1, the elastic deformation amount of the silicone resin 1 can be regulated. Moreover, since the elastic deformation rate of the solid material 2 exists from small to large, depending on the purpose, the hardness of the heat insulating resin material 100 can be increased by using the solid material 2 having a desired elastic deformation rate. Adjustments can be made.

  In particular, when high hardness is required, a solid material 2 having a small elastic deformation rate is selected, and a large amount of the solid material 2 is contained in the silicone resin 1 so that the volume ratio of the silicone resin 1 is reduced. It can adjust so that the hardness of the resin material 100 may become high.

  At this time, a method of incorporating the solid material 2 into the silicone resin 1 using a kneader such as a kneader or a roller type, or an organic solvent capable of dissolving and swelling the solid material 2 and the silicone resin 1, such as toluene, THF, By using a method of surface-treating the surfaces of the solid material 2 and the silicone resin 1 in advance using a petroleum-based solvent such as octane or isooctane, the solid material 2 has a volume ratio of 30 to 70 [ %] Can be realized arbitrarily.

  Since the silicone resin 1 can be dissolved and swollen using the above petroleum solvent (organic solvent), when the hollow filler is kneaded, the hardness of the silicone resin 1 becomes low (the silicone resin 1 becomes soft), Damage to the hollow body can be prevented.

  In addition, when a hollow body filler breaks, the fragment will become a mere filler with high heat conductivity, and the characteristic as a heat insulation material will fall. Therefore, when the hollow filler is mixed in the silicone resin 1, how to mix the hollow filler without damaging it exhibits characteristics as a member using the heat insulating resin material 100, for example, a heat insulating roller. It leads to.

  Further, when the solid particle size is almost uniform, even if the solid material 2 is packed most closely, if the volume ratio exceeds 66%, it is theoretically impossible to fill the surplus volume with the silicone resin 1. There is a phase. When this gas phase is contained in the silicone resin 1, although the mechanical strength as the heat insulating resin material 100 is deteriorated, it is possible to improve the heat insulating characteristics. Therefore, the volume ratio of the solid material 2 to the silicone resin 1 is desirably 70% or less as the heat insulating resin material 100 having elasticity.

  Organic solvents include toluene, benzene, xylene, propane, butane, pentane, hexane, heptane, octane, nonane, decane, dodecane, methanol, ethanol, propanol, butanol, tetrahydrofuran, acetonitrile, dimethylformamide or dimethyl sulfoxide. Or a mixture of any plural kinds of a plurality of compounds.

  Since such an organic solvent is used to reduce the hardness or viscosity of the silicone resin 1, it is possible to prevent the solid material 2 as a heat insulating material from being damaged and maintain the original heat insulating property of the fixing material. Can do.

  As described above, according to the first embodiment, the heat insulating resin material 100 in which the solid material 2 having heat insulating performance is fixed with the silicone resin 1 can obtain high heat insulating performance and when high hardness is required. The hardness can be increased by increasing the amount of solid heat insulating material (solid material).

  Specifically, by incorporating the solid material 2 into the silicone resin 1 in a volume ratio of 30 to 66 [%], it is possible to achieve a higher hardness of 50 to 95 than that of the silicone resin alone in Asker C hardness. . This is because the heat insulating material having a hardness higher than that of the silicone resin gives an effect of suppressing the deformation of the silicone resin. Furthermore, when the volume ratio of the solid material to the silicone resin is set to 66 [%] or more, since the gas is contained in the solid material and the silicone resin, the heat insulating property can be improved. At this time, when the volume ratio of the solid material to the silicone resin greatly exceeds 70 [%], the rubber properties of the silicone rubber are remarkably deteriorated. By containing a large amount, the heat insulation properties are greatly improved.

(Embodiment 2)
FIG. 2 is a configuration diagram showing a schematic configuration of the heat insulating resin material according to Embodiment 2 of the present invention.

  The heat insulating resin material 100 shown in FIG. 2 has a structure in which the closed cell 3 is added to the structure of the heat insulating resin material 100 of the first embodiment shown in FIG.

  This heat insulating resin material 100 includes or fixes a solid material 2 having heat insulating performance and a closed cell body 3 in the silicone resin 1.

  That is, the heat insulating resin material 100 contains or fixes the solid material 2 having high heat insulating properties and low heat capacity and the closed cell body 3 having high heat insulating properties and low heat capacity in the silicone resin 1. Yes. Thereby, since the weight per unit volume of the silicone resin 1 can be reduced, the heat insulation characteristic as a heat insulation material and a low heat capacity can be remarkably improved.

  As the solid material 2, as in the case of the first embodiment, a heat insulating material having lower heat transfer characteristics and higher heat resistance than the silicone resin 1 can be used. For example, the solid material 2 includes carbon materials such as carbon resin and carbon graphite, porous carbon materials, plant materials such as cork and wood chips, and carbonized cork and wood chips. Examples of the solid material 2 include hollow bodies or foams of glass, metal, and ceramics, and a gas such as air exists in the voids of these hollow bodies or foams. Furthermore, as the other solid material 2, there are a fine capsule in which a gas such as vacuum or air or nitrogen is enclosed, and a porous body having heat insulating properties.

  Furthermore, as the solid material 2, a heat resistant resin material such as a fluororesin, a low molecular silicone resin, an epoxy resin, or a phenol resin, or a foam or a hollow body of these heat resistant resin materials may be used.

  Before the silicone resin 1 is heated and cured, the foam is taken into the silicone resin 1 or a foaming agent that evaporates and foams during the heating and baking is added to the silicone resin 1 so that the silicone resin 1 is heated and fired. The closed cell 3 can be produced by curing. Alternatively, the solvent can be dispersed, swelled and permeated into the silicone resin 1 and a solvent having a boiling point equal to or lower than the heating and baking temperature is added to the silicone resin 1 and the mixed silicone resin raw material is heated to thereby add the solvent. Is generated as an independent bubble in the process of vaporizing, so that the closed cell 3 can be produced in the silicone resin 1.

  By containing or fixing the solid material 2 having high heat insulation properties in the silicone resin 1, the volume of the silicone resin 1 is reduced, so that the amount of elastic deformation of the silicone resin 1 can be regulated, and the elasticity of the heat insulation resin material 100. The deformation rate can be reduced and the hardness can be increased. On the other hand, by containing or fixing the closed cell body 3 in the silicone resin 1, the closed cell body 3 is easily elastically deformed. Therefore, the elastic deformation rate as the heat insulating material is increased, and the heat insulating resin material 100. Hardness can be reduced.

  Therefore, by arbitrarily setting the ratio of the solid material 2 and the closed cell body 3, the heat insulating resin material whose hardness is freely set according to the purpose from a small hardness to a large one compared with the silicone resin 1 100 can be provided.

  At this time, when the solid material 2 is contained in the silicone resin 1 using a kneader such as a kneader or a roller type, the solid material 2 is contained in the silicone resin 1 in a volume ratio of 30 [%] or more. Although it is difficult, the surface of the solid material 2 and the silicone resin 1 is previously prepared using an organic solvent capable of dissolving and swelling the solid material 2 and the silicone resin 1, for example, petroleum solvents such as toluene, THF, octane, and isooctane. By mixing the surface, high volume ratio mixing can be realized. Thereby, the solid material 2 can implement | achieve arbitrarily the volume ratio with the silicone resin 1 to 30-70 [%].

  When the particle size is almost uniform, even if the solid material 2 is packed most closely, if the volume ratio exceeds 66%, it is theoretically impossible to fill the surplus volume with the silicone resin 1, and there is a gas phase. To do. This gas phase has a continuous shape. When such a gas phase is contained in the silicone resin 1, permanent deformation due to pressure is easily generated, and mechanical strength as the heat insulating resin material 100 is deteriorated.

  In order to impart high flexibility to the silicone resin layer, the silicone resin 1 can be mixed with a mixture such as silicone monomer or silicone oil to increase the flexibility of the silicone resin 1. And since the solid material 2 becomes easy to be mixed more because flexibility improved, the heat insulation resin material 100 can improve a heat insulation characteristic more. The volume ratio of the solid material 2 to the silicone resin 1 is desirably 70 [%] or less as the heat insulating resin material 100 having elasticity.

As the solid material 2 as the heat insulating material, a hollow glass having a particle size of 10 to 300 [μm] and a bulk density of 0.07 to 0.8 [g / cm ³ ] can be used. Preferably, those having a particle size of 30 to 70 [μm] and a bulk density of 0.1 to 0.6 [g / cm ³ ] in terms of pressure strength and hollowness are desirable.

  Here, when the volume ratio of the solid material 2 having a particle size of 30 to 60 [μm] and a bulk density of 0.38 to 0.6 [g / cm 3] to the silicone resin 1 is 60 [%] In addition, when the heat insulating resin material 100 in which the solid material 2 is fixed with the silicone resin 1 is used, the thermal conductivity is 0.3 [W / m · k] in the case of the silicone resin alone. Significantly improved to 2 [W / m · k]. Further, when the volume ratio of the hollow solid material 2 to the silicone resin 1 is 70 [%], the thermal conductivity can be 0.13 [W / m · k] or less.

  When the hollow glass heat insulating material is dispersed in the silicone resin, an aromatic organic solvent such as benzene, toluene or xylene or an aliphatic organic solvent such as hexane or octane (saturated aliphatic compound or unsaturated aliphatic) Compound) or an organic solvent having a polar group such as THF or DMSO. Using these organic solvents, the hollow glass heat insulating material is mixed in a state where the silicone resin 1 is dissolved and swollen to reduce the hardness. Thereby, compared with the case where an organic solvent is not used, since a hollow glass heat insulating material can be disperse | distributed uniformly, a uniform characteristic can be acquired as a heat insulating material. Moreover, since the breakage of the glass hollow body at the time of kneading | mixing can be prevented, there exists a merit that the characteristic as a heat insulation material is not impaired.

  Incidentally, examples of organic solvents include toluene, benzene, xylene, propane, butane, pentane, hexane, heptane, octane, nonane, decane, dodecane, methanol, ethanol, propanol, butanol, tetrahydrofuran, acetonitrile, dimethylformamide or dimethyl. Examples thereof include sulfoxide compounds or isomers, or a mixture of a plurality of compounds among a plurality of compounds.

  After kneading the hollow glass heat insulating material in the silicone resin, the organic solvent is distilled off from the silicone resin as much as possible, and the silicone resin is heated and cured. However, it is difficult to completely distill off the organic solvent from the mixture system of the silicone resin and the hollow glass heat insulating material at a normal temperature and time for heating and curing the silicone resin. As a result, some residual organic solvent is present in the member using the heat insulating resin material 100 produced.

  As described above, according to the second embodiment, the heat insulating resin material in which the solid material 2 having heat insulating performance and the closed cell 3 are fixed with the silicone resin 1 can obtain high heat insulating performance and have high hardness. If necessary, the hardness can be increased by increasing the amount of solid heat insulating material (solid material).

  In addition, according to the second embodiment, the silicone resin contains a solid heat insulating material (solid material) that increases the hardness of the silicone resin and closed cells that reduce the hardness of the silicone resin by imparting elasticity in an arbitrary ratio. By doing so, the hardness UP of the silicone resin by the solid heat insulating material can be suppressed by adding elasticity by adding closed cells, and the hardness of the silicone resin can be arbitrarily adjusted. In addition to high hardness characteristics, low hardness material characteristics can be obtained. At this time, it is not always necessary for the bubbles to be independent, and the open bubbles are more effective when the hardness is remarkably reduced.

(Embodiment 3)
FIG. 3 is a block diagram showing a schematic configuration of the fixing device according to Embodiment 3 of the present invention, and FIG. 4 is a block diagram showing another schematic configuration of the fixing device according to Embodiment 3 of the present invention.

  In the third embodiment, two types of fixing devices when an IH coil is used as a heat source and when a halogen heater is used will be described.

  First, a fixing device when an IH coil is used as a heat source will be described with reference to FIG.

  In the fixing device 300 shown in FIG. 3, an IH coil 6 and a belt-like heat generating roller 5 that is a heat generating element are disposed outside the fixing member 200. The heating roller 5 is heated by the IH coil 6. The recording medium 11 and the toner 12 on the recording medium 11 are heated and pressurized by the fixing member 200 and the pressure roller 10 facing the fixing member 200 with the heat-generating roller 5 that has generated heat interposed therebetween.

  The fixing member 200 other than the heat generating roller 5 has a configuration in which the outer surface of the shaft 4 is covered with a heat insulating resin material 100 and integrated. This heat insulating resin material 100 is the heat insulating resin material 100 shown in FIG. 1 or the heat insulating resin material 100 shown in FIG. The pressure roller 10 has a structure in which the outer surface of the shaft center 9a is integrated with a flexible layer 9b.

  The heat generating roller 5 and the pressure roller 10 need not only apply heat to the recording medium 11 and the toner 12 but also need to apply pressure.

  Examples of the metal material having mechanical rigidity used for the shaft center 4 and the shaft center 9a include iron, iron alloys, stainless steel, aluminum, and alloy materials. Moreover, as a highly rigid resin material, there are a PEEK material and a phenol resin. As the reinforcing material, a composite material using glass fiber or carbon fiber is used. These materials can also take the form of a hollow pipe to reduce the heat capacity.

  In the fixing device 300 having the above-described configuration, a high-frequency electromagnetic wave generated by the IH coil 6 as a heat source is efficiently controlled by the IH magnetic core 7 to control the magnetic circuit, and is formed of a heating element that generates heat by induction. The heat generated by the eddy current generated by the heat generating roller 5 is used, and the toner 12 as a printing material is transferred and adhered onto the recording medium 11 by this heat.

  Further, the roller-shaped fixing member 200 disposed inside the belt-shaped heat generating roller 5 is configured such that the toner 12 is placed on the recording medium 11 with the pressure roller 10 facing the roller-shaped heat generating roller 5. Adhere. The recording medium 11 on which the toner 12 is fixed is separated from the heat generating roller 5 by the separation claw 8 disposed in the vicinity of the heat generating roller 5.

  Next, a fixing device when a halogen heater is used as a heat source will be described with reference to FIG. Note that, in FIG. 4, the same reference numerals are given to parts that perform the same functions as the components shown in FIG. 3.

  As shown in FIG. 4, the fixing device 400 includes a heat generating roller 410 and a pressure roller 420.

  The heat generating roller 410 has a release layer 411 formed on the outside thereof, and a halogen heater 412 serving as a heat generating source is provided inside the heat releasing roller 410. A separation claw 8 is disposed in the vicinity of the heat generating roller 410. The heat generation roller 410 preferably has a small heat capacity in order to shorten the time required to reach a predetermined temperature.

  The pressure roller 420 has a configuration in which the outer surface of the shaft center 421 is integrated with a flexible layer 422, and the fixing member 200 is disposed inside the shaft center 421. The pressure roller 420 has a strip shape. Since the fixing device 400 needs to heat and press the toner 12 on the recording medium 11, the fixing device 400 applies pressure to the heat generation roller 410 by the belt-like pressure roller 420.

  In order to heat and press the toner 12 on the recording medium 11 between the heat roller 410 and the pressure roller 420, it is necessary to form a nip. Therefore, the pressure roller 420 also needs mechanical rigidity. Further, it is necessary to dispose a roller that supports the heat generating roller 410, but it is desirable that the roller has a small heat capacity. Therefore, a roller-shaped fixing member 200 provided with the heat insulating resin material 100 is disposed inside the pressure roller 420 at a position facing the heat generating roller 410.

  By the way, depending on the type of toner for monochrome or color, from the viewpoint of image quality, the hardness of the pressure roller 420 needs to be high in the case of monochrome, but in the case of color, the hardness is kept lower than that of monochrome. There is a need. Therefore, by using the heat insulating resin material 100 according to either the fixing device provided in the monochrome image forming apparatus or the fixing device provided in the color image forming apparatus, the hardness of the pressure roller 420 is increased. Both a point that can be arbitrarily set and a point that can have high heat insulating properties can be realized.

  Since the fixing device 400 having high heat insulating properties can be realized in this way, heating can be started simultaneously with the start of printing without remaining heat during printing standby, and the maintenance performance of the resin material with a long life can be achieved. High control method.

  In Embodiment 3, when the fixing member 200 shown in FIG. 3 is used, the roller provided with the heat insulating resin material 100 constitutes a so-called fixing roller, while the fixing member 200 shown in FIG. When used, the roller provided with the heat insulating resin material 100 constitutes a so-called pressure roller. Thus, the roller provided with the heat insulating resin material 100 may be used for either a fixing roller as the fixing member 200 or a pressure roller (or a part of a member having the function). The fixing member 200 may be used as a heat insulating roller when heat insulating performance is required.

  As described above, according to the third embodiment, it is possible to provide a fixing member using a heat insulating resin material capable of arbitrarily adjusting the heat insulating performance and the hardness without impairing the heat insulating performance.

  Further, according to the third embodiment, the toner transferred onto the recording medium is heated and pressed using a pressure roller or a heat generation roller as a fixing member using a heat insulating resin material (heat insulating material) and fixed. Therefore, it is possible to suppress the heat applied for fixing from being taken away by these rollers. As a result, in the image forming apparatus having the fixing device, it is possible to reduce running energy consumption and realize significant energy saving, and at a predetermined fixing temperature at the time of start-up (warming up). It is possible to significantly reduce the arrival time to reach.

(Embodiment 4)
FIG. 5 is a block diagram showing a schematic configuration of the image forming apparatus in Embodiment 4 of the present invention.

  In the image forming apparatus 500 shown in FIG. 5, the photosensitive drum (electrophotographic photosensitive member) 41 is rotated at a predetermined peripheral speed in the direction indicated by an arrow A in the figure, and its surface is negatively charged by the charger 42. Uniformly charged to dark potential.

  The laser beam scanner 43 outputs a laser beam modulated in accordance with a time-series electric digital pixel signal of image information input from a host device such as an image reading device or a computer (not shown). The uniformly charged surface of the photosensitive drum 41 is scanned and exposed with this laser beam, and the exposed portion has a small absolute potential value to become a bright potential, and an electrostatic latent image is formed on the surface of the photosensitive drum 41.

  The electrostatic latent image is reversely developed with powder toner negatively charged by the developing device 44 to be visualized. Here, the developing device 44 has a developing roller 44 a that is driven to rotate, and a thin toner layer having a negative charge is formed on the outer peripheral surface of the developing roller 44 a so as to face the surface of the photosensitive drum 41. Further, a developing bias voltage whose absolute value is smaller than the dark potential of the photosensitive drum 41 and larger than the bright potential is applied to the developing roller 44a. Therefore, the toner on the developing roller 44a is transferred only to the light potential portion of the photosensitive drum 41, whereby the latent image is visualized.

  The recording medium 11 is fed sheet by sheet from the sheet feeding section 46, and is sent to a nip portion between the photosensitive drum 41 and the transfer roller 49 in contact with the photosensitive drum 41 through a pair of rollers 47 and 48. At this time, the recording medium 11 is sent at an appropriate timing synchronized with the rotation of the photosensitive drum 41. The toner image on the photosensitive drum 41 is sequentially transferred to the recording medium 11 by the action of the transfer roller 49 to which a transfer bias is applied.

  The recording medium 11 that has passed through the transfer section is separated from the photosensitive drum 41 and introduced into the fixing device 300, where the transferred toner image is fixed. The fixing device 300 is the fixing device 300 according to the third embodiment shown in FIG.

  Then, the recording medium 11 on which the toner is fixed by the fixing device 300 and the image is fixed is sent to the paper discharge tray 50 and printed out. The surface of the photosensitive drum 41 after the separation of the recording medium 11 is removed by the cleaning device 45 from the surface of the photosensitive drum 41 such as transfer residual toner. As a result, the surface of the photosensitive drum 41 is cleaned, and the next image formation is repeatedly performed.

  In the fourth embodiment, the image forming apparatus 500 uses the fixing device 300. However, the present invention is not limited to this, and the fixing device 400 of the embodiment shown in FIG. It is good also as a structure to use.

  As described above, the image forming apparatus 500 includes the fixing device 300 or the fixing device 400, so that consumption of running energy can be suppressed to be low, and significant energy saving can be realized. The time required to reach the fixing temperature (arrival time) can be greatly reduced.

  As described above, according to the fourth embodiment, the toner transferred onto the recording medium is heated and heated using the pressure roller and the heat generating roller as a fixing member using a heat insulating resin material (heat insulating material). Since fixing is performed by applying pressure, it is possible to greatly suppress the heat applied for fixing from being taken away by these rollers. Therefore, in the image forming apparatus, the consumption of running energy can be kept low, a significant energy saving can be realized, and the time required to reach a predetermined fixing temperature at the start-up can be greatly shortened.

  Therefore, in the conventional image forming apparatus, it is necessary to preheat the fixing unit in order to reduce the stand-by time at the start-up other than during the image fixing, whereas in the image forming apparatus of the present invention, the fixing device (fixing) Part) is not necessary.

  Further, according to the fourth embodiment, by using the heat insulating resin material, the pressure roller and the heat generating roller can be set to a desired hardness, so that the toner transferred onto the recording medium is heated and pressed. When designing an image forming apparatus to be fixed, the width and pressure of a nip formed by pressing and pressing a roller can be arbitrarily designed to desired values.

Example 1
First, hollow silicon beads having a particle size of 30 to 60 [μm] and a bulk density of 0.38 to 0.6 [g / cm ³ ] as a solid material were used.

  Next, the hollow silicon beads were contained in the silicone resin at a volume ratio of 60%, and the hollow silicon beads were fixed with the silicone resin to obtain a first heat insulating resin material.

  Similarly, the hollow silicon beads were contained in the silicone resin in a volume ratio of 70%, and the hollow silicon beads were fixed with the silicone resin to obtain a second heat insulating resin material.

  And the heat conductivity of these obtained heat insulation resin materials was measured. For comparison, the thermal conductivity of the silicone resin alone was also measured.

  In the case of the silicone resin alone, the thermal conductivity was 0.3 [W / m · k]. On the other hand, the first heat insulating resin material was 0.13 [W / m · k], and the heat insulating performance was greatly improved. In addition, the second heat insulating resin material was able to achieve 0.13 [W / m · k] or less.

  Here, FIG. 6 is a schematic diagram of a chemical formula showing the composition of the heat insulating resin material in the example of the present invention. The molecular structure of the resin constituting the silicone resin used in this example is that the polydimethylsiloxane derivative constituting the silicone resin has a side chain and an organic functional group at its end as shown in FIG. Derivatives, ethyl derivatives, propyl derivatives, methoxy derivatives, ethoxy derivatives, amino derivatives, carboxyl derivatives, phenyl derivatives, phenol derivatives, epoxy derivatives, mercapto derivatives, vinyl derivatives, polyether derivatives, fatty acid ester derivatives And

  Further, m and n shown in FIG. 6 are numbers representing the degree of polymerization of the silicone resin. In this embodiment, the value of (m + n) is in the range of 100 to 100,000. One example is SH851U manufactured by Toray Dow Silicone.

(Example 2)
First, hollow silicon beads having a particle size of 30 to 60 [μm] and a bulk density of 0.38 to 0.6 [g / cm ³ ] as a solid material were used.

  Next, the hollow silicon beads were contained in the silicone resin at a volume ratio of 60%, and the hollow silicon beads were fixed with the silicone resin to obtain a first heat insulating resin material.

  Similarly, the hollow silicon beads were contained in the silicone resin in a volume ratio of 70%, and the hollow silicon beads were fixed with the silicone resin to obtain a second heat insulating resin material.

  And the heat conductivity of these obtained heat insulation resin materials was measured. For comparison, the thermal conductivity of the silicone resin alone was also measured.

  In the case of the silicone resin alone, the thermal conductivity was 0.3 [W / m · k]. On the other hand, the first heat insulating resin material was 0.13 [W / m · k], and the heat insulating performance was greatly improved. In addition, the second heat insulating resin material was able to achieve 0.13 [W / m · k] or less.

  In the second heat insulating resin material, the thermal conductivity was able to simultaneously achieve 0.3 [W / m · k] and Asker C hardness of 81.7. This is a numerical value of a region that could not be reached by the conventional heat insulating resin material.

  Here, FIG. 7 is a graph showing an outline of characteristics of the heat insulating resin material in the example of the present invention. As shown in FIG. 7, the conventional heat insulating material could not simultaneously achieve a thermal conductivity of 0.20 [W / m · k] or less and an Asker C hardness of 80 or more. However, with the heat insulating resin material according to the present invention, it is possible to simultaneously achieve a thermal conductivity of 0.20 [W / m · k] or less and an Asker C hardness of 80 or more.

  Excellent heat insulation, that is, having a low thermal conductivity and having a hardness of 80 or more is superior to the conventional in managing the nip width closely related to the toner temperature characteristics and printing speed. It has characteristics.

  The present invention is a heat insulating resin material capable of arbitrarily adjusting the heat insulating performance and hardness without impairing the heat insulating performance, and by using this heat insulating resin material, energy loss can be greatly reduced. A member or a device using this can be applied to a device having a heat source.

The block diagram which shows schematic structure of the heat insulation resin material in Embodiment 1 of this invention The block diagram which shows schematic structure of the heat insulation resin material in Embodiment 2 of this invention Configuration diagram showing a schematic configuration of a fixing device according to a third embodiment of the present invention. The block diagram which shows the other schematic structure of the fixing device in Embodiment 3 of this invention. Configuration diagram showing a schematic configuration of an image forming apparatus according to Embodiment 4 of the present invention. Schematic of the chemical formula showing the composition of the heat insulating resin material in the examples of the present invention The graph which shows the characteristic outline of the heat insulation resin material in the Example of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Silicone resin 2 Solid material 3 Closed-cell body 4 Axial center 5,410 Heat generating roller 6 IH coil 7 IH magnetic core 8 Separation claw 9a, 421 Axis center 9b, 422 Flexible layer 10,420 Pressure roller 11 Recording medium 12 Toner 13 Release layer 14 Halogen heater 100 Insulating resin material 200 Fixing member 300, 400 Fixing device 500 Image forming apparatus

Claims (21)

A heat insulating resin material characterized in that a solid material having heat insulating performance is contained in a silicone resin, and an organic solvent is contained in the silicone resin. A heat insulating resin material, characterized in that a solid material having heat insulating performance is fixedly molded with a silicone resin, and an organic solvent is contained in the silicone resin. The organic solvent is in a liquid state at room temperature and is a combination of one or more kinds of compounds among saturated aliphatic compounds, unsaturated aliphatic compounds and aromatic compounds. The heat insulating resin material according to claim 1 or 2. The organic solvent is a compound of toluene, benzene, xylene, propane, butane, pentane, hexane, heptane, octane, nonane, decane, dodecane, methanol, ethanol, propanol, butanol, tetrahydrofuran, acetonitrile, dimethylformamide or dimethyl sulfoxide. 4. The heat insulating resin material according to claim 3, wherein the heat insulating resin material is a mixture of isomers or any plural kinds of the plurality of compounds. The heat-insulating resin material according to any one of claims 1 to 4, wherein the content of the organic solvent is 5 percent or less by weight based on the mixture of the solid material and the silicone resin. . The heat insulating resin material according to any one of claims 1 to 5, wherein the solid material is a hollow body of an organic substance such as a resin material, glass, metal, or ceramic. The heat insulating resin material according to any one of claims 1 to 5, wherein the solid material is an organic substance such as a resin material, a foam of glass, metal, or ceramic. The heat insulating resin material according to any one of claims 1 to 7, wherein a heat insulating property and hardness of the self material are adjusted based on a content of the solid material. The heat insulating resin material according to any one of claims 1 to 8, wherein the solid material is contained in the silicone resin in a volume ratio of 30% to 70%. The main component contained in the silicone resin is polysiloxane typified by polydimethylsiloxane, and its side chain and both ends are hydrogen atoms, methyl derivatives, ethyl derivatives, propyl derivatives, methoxy derivatives, ethoxy derivatives, amino The derivative, carboxyl derivative, phenyl derivative, phenol derivative, epoxy derivative, mercapto derivative, vinyl derivative, polyether derivative, or fatty acid ester derivative, according to any one of claims 1 to 9, Thermal insulation resin material. The heat insulating resin according to claim 1, wherein the heat insulating resin material has an Asker C hardness of 60 to 95 and a thermal conductivity of 0.20 [W / K · m] or less. material. A member for fixing unfixed toner transferred to a recording medium to the recording medium, comprising the heat insulating resin material according to claim 1. A heat insulating resin according to any one of claims 1 to 11, which is a roller-shaped member for fixing unfixed toner transferred to a recording medium to the recording medium, on a surface of the roller-shaped member. A fixing member in which a material is formed. The fixing member according to claim 12 or 13, wherein the hardness of the heat insulating resin material is larger than the hardness of the silicone resin alone. The fixing member according to claim 12, wherein the heat insulating resin material has an Asker C hardness of 50 to 95. A fixing device for fixing an unfixed toner image transferred to a recording medium to the recording medium, comprising the fixing member according to any one of claims 12 to 15. The fixing device according to claim 16, wherein the heating is performed by electromagnetic induction. The fixing device according to claim 16, wherein the heating is performed by a halogen heater. An image forming apparatus that forms a toner image corresponding to an electrostatic latent image, transfers the toner image to a recording medium, and fixes the toner image to the recording medium,
An image forming apparatus comprising the fixing device according to claim 16, wherein the toner image is fixed on the recording medium. A solid material having a heat insulation performance is contained in a silicone resin, and it is simultaneously satisfied that the Asker C hardness is 60 to 95 and that the thermal conductivity is 0.20 [W / K · m] or less. Insulating resin material. The solid material having heat insulation performance is fixedly molded with a silicone resin, the Asker C hardness is 60 to 95, and the thermal conductivity is 0.20 [W / K · m] or less at the same time. Characteristic heat insulating resin material.

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