Abstract: A pressure roller forms a nip for contacting a heating member to pinch and convey a heat recording material. The roller includes a core metal and an elastic layer containing filler. The elastic layer containing the filler includes thermal conductive filler with a length of not less than 0.05 mm and not more than 1 mm with a thermal conductivity ?f in the longitudinal direction in a range of ?f?500 W/(m·k), being dispersed in not less than 5 vol % and not more than 40 vol %. The elastic layer containing the filler has a thermal conductivity ?y in the longitudinal direction perpendicular to a recording material conveyance direction, of ?y?2.5 W/(m·k) and an ASKER-C hardness of the filler is not more than 60 degrees. A solid rubber elastic layer with a thermal conductivity ? in a thickness direction of not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included.

Abstract: A pressure roller forms a nip for contacting a heating member to pinch and convey a heat recording material. The roller includes a core metal and an elastic layer containing filler. The elastic layer containing the filler includes thermal conductive filler with a length of not less than 0.05 mm and not more than 1 mm with a thermal conductivity ?f in the longitudinal direction in a range of ?f?500 W/(m·k), being dispersed in not less than 5 vol % and not more than 40 vol %. The elastic layer containing the filler has a thermal conductivity ?y in the longitudinal direction perpendicular to a recording material conveyance direction, of ?y?2.5 W/(m·k) and an ASKER-C hardness of the filler is not more than 60 degrees. A solid rubber elastic layer with a thermal conductivity ? in a thickness direction of not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included.

Abstract: A pressure roller forms a nip for contacting a heating member to pinch and convey a heat recording material. The roller includes a core metal and an elastic layer containing filler. The elastic layer containing the filler includes thermal conductive filler with a length of not less than 0.05 mm and not more than 1 mm with a thermal conductivity ?f in the longitudinal direction in a range of ?f?500 W/(m·k), being dispersed in not less than 5 vol % and not more than 40 vol %. The elastic layer containing the filler has a thermal conductivity ?y in the longitudinal direction perpendicular to a recording material conveyance direction, of ?y?2.5 W/(m·k) and an ASKER-C hardness of the filler is not more than 60 degrees. A solid rubber elastic layer with a thermal conductivity ? in a thickness direction of not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included.

Abstract: A fixing roller of an image fixing apparatus has an elastic layer on a core metal and has a thermal conductive fluororubber latex layer containing a mixture of fluororubber, fluororesin and thermal conductive fillers more outer side than the elastic. An intermediate layer made of silicone rubber having higher thermal conductivity than the thermal conductive fluororubber latex layer is provided between the thermal conductive fluororubber latex layer and the elastic layer, and the intermediate layer is configured so that an elastic parameter Y(=H×T) satisfies a relational expression: Y?4200 where H (degree) is Asker-C hardness of the silicone rubber having higher thermal conductivity (500 g load) and T (?m) is a thickness of the silicone rubber having higher thermal conductivity.

Abstract: A pressure roller forming a nip portion for contacting to a heating member to pinch and convey and heat recording material includes: a core metal and an elastic layer containing filler, the elastic layer containing the filler including thermal conductive filler with length of not less than 0.05 mm and not more than 1 mm and with thermal conductivity ?f in the longitudinal direction in a range of ?f?500 W/(m·k) being dispersed in not less than 5 vol. % and not more than 40 vol % and the elastic layer containing the filler providing thermal conductivity ?y in the longitudinal direction perpendicular to a recording material conveyance direction being ?y?2.5 W/(m·k) and ASKER-C hardness of the filler being not more than 60 degrees, wherein a solid rubber elastic layer with thermal conductivity ? in a thickness direction being not less than 0.16 W/(m·k) and not more than 0.

Abstract: The image heating apparatus includes a rubber layer and a resin tube layer on a metal core. The rubber layer includes a solid rubber layer having a thermal conductivity in a thickness direction of 0.16 W/(m·K) or more and 0.40 W/(m·K) or less, and a self-bonded silicone rubber layer that contains a filler of 5 vol % or more and 40 vol % or less, and has a thermal conductivity in an axial direction of 2.5 W/(m·K) or more and a thickness of 0.5 mm or more and 5.0 mm or less, the filler having a length of 0.05 mm or more and 1 mm or less and a thermal conductivity in a length direction of 500 W/(m·K) or more, so that a pressure roller to moderate temperature rise in a non-sheet feeding area when a small sized recording material has undergone sheet feeding can be easily manufactured.

Abstract: A pressure roller forms a nip for contacting a heating member to pinch and convey a heat recording material. The roller includes a core metal and an elastic layer containing filler. The elastic layer containing the filler includes thermal conductive filler with a length of not less than 0.05 mm and not more than 1 mm and with a thermal conductivity ?f in the longitudinal direction in a range of ?f?500 W/(m·k), being dispersed in not less than 5 vol % and not more than 40 vol %. The elastic layer containing the filler has a thermal conductivity ?y in the longitudinal direction perpendicular to a recording material conveyance direction, of ?y?2.5 W/(m·k) and an ASKER-C hardness of the filler is not more than 60 degrees. A solid rubber elastic layer with a thermal conductivity ? in a thickness direction of not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included.

Abstract: An electrophotographic fixing member is provided, which is excellent in toner releasability and hard to change in rubber elasticity of a silicone rubber elastic layer. The fixing member is laminated with a substrate, a cured silicone rubber layer, a cured silicone rubber adhesive layer and a fluorine resin layer, wherein when infrared light absorption strength ratios (1020 cm?1/1260 cm?1) at 1020 cm?1 and 1260 cm?1 determined by sampling the portions of 5 ?m and 20 ?m from the outer surface of the cured silicone rubber layer are taken as ?(5) and ?(20), respectively, a relationship of ?(5) and ?(20) satisfies 1.03??(5)/?(20)?1.30 and ?(20) is 0.8 or more and 1.2 or less.

Abstract: In a heat fixing member which is a seamless type cylindrical heat fixing member having an elastic layer, the elastic layer is mixed with carbon fibers, and the elastic layer has a thermal conductivity of 1.0 W/(m·K) or more in the thickness direction thereof. A heat fixing member is provided which is more improved in the thermal conductivity in the thickness direction, can efficiently supply heat to the heating object (recording medium) at the time of high-speed printing, can give fixed images having a high glossiness in virtue of the elastic layer, which has secured a sufficient flexibility. A high-performance heat fixing assembly is also provided which can conduct sufficient heat to toner images even if the dwell time is shortened.

Abstract: A pressure member contacts a heating member to form a nip part where a recording material is heated and pinched-conveyed, and includes a first elastic layer and a second elastic layer 24b having a higher thermal conductivity than that of the first elastic layer. An elastic layer is formed of a combination of the first elastic layer and the second elastic layer so that the thickness of the second elastic layer at the end portion is thicker than the thickness of the second elastic layer at the center portion in a longitudinal direction perpendicular to a recording material conveyance direction. Accordingly, when using the pressure member to contact the heating member to form the nip part, it is possible to reduce the difference between a center nip width and an end-portion nip width of the nip part.

Abstract: A pressing member for creating a nip in which the pressing member contacts a heating member and a recording material is heated while being nip-conveyed, includes an elastic layer and a high thermal conductive elastic layer which is provided on the elastic layer and has a thermal conductivity which is higher than that of the elastic layer. In the high thermal conductive elastic layer, a needle-like thermal conductivity-anisotropic filler and carbon nanofibers are dispersed in a heat-resistant elastic material.

Abstract: A fixing belt includes a cylindrical base composed of a metal and a polyimide resin layer formed on the inner peripheral surface of the cylindrical base, in which the polyimide resin layer has an imidization rate of 70% to 93%, and comprises a polyimide resin containing a specific constitutional unit.

Abstract: An electrophotographic fixing member is provided, which is excellent in toner releasability and hard to change in rubber elasticity of a silicone rubber elastic layer. The fixing member is laminated with a substrate, a cured silicone rubber layer, a cured silicone rubber adhesive layer and a fluorine resin layer, wherein when infrared light absorption strength ratios (1020 cm?1/1260 cm?1) at 1020 cm?1 and 1260 cm?1 determined by sampling the portions of 5 ?m and 20 ?m from the outer surface of the cured silicone rubber layer are taken as ?(5) and ?(20), respectively, a relationship of ?(5) and ?(20) satisfies 1.03??(5)/?(20)?1.30 and ?(20) is 0.8 or more and 1.2 or less.

Abstract: Disclosed is an image heating apparatus. The image heating apparatus includes a rotatable heating member for heating an image on a recording material in a nip portion, and a heating unit for heating the heating member from the outside thereof. With this structure, a warm-up time period or a first print-out time period can be reduced, and low power consumption can be accomplished. Further, satisfactory image quality can be realized with no heating (fixing) irregularity. The heating member has a low thermal conductive elastic layer, and a heat storage layer outside the low thermal conductive elastic layer to have a volume heat capacity larger than the low thermal conductive elastic layer. A heat capacity of the heat storage layer per unit surface area of a fixing member is in a range of 100 J/m2K to 600 J/m2K.

Abstract: An electrophotographic fixing member is provided, which is excellent in toner releasability and hard to change in rubber elasticity of a silicone rubber elastic layer. The fixing member is laminated with a substrate, a cured silicone rubber layer, a cured silicone rubber adhesive layer and a fluorine resin layer, wherein when infrared light absorption strength ratios (1020 cm?1/1260 cm?1) at 1020 cm?1 and 1260 cm?1 determined by sampling the portions of 5 ?m and 20 ?m from the outer surface of the cured silicone rubber layer are taken as ?(5) and ?(20), respectively, a relationship of ?(5) and ?(20) satisfies 1.03??(5)/?(20)?1.30 and ?(20) is 0.8 or more and 1.2 or less.

Abstract: A tube-coated belt suited for heat fixation of color images and the like, downsizing and high-speed operation; and an organopolysiloxane adhesive composition of high adhesion durability suited for the manufacture of tube-coated belt, wherein the tube-coated belt has a resin tube on a silicone-rubber elastic layer through an adhesive layer, wherein the adhesive layer is composed of a cured product of an organopolysiloxane adhesive composition containing a specific organopolysiloxane component.

Abstract: A roller for fixing and an image fixing apparatus using the roller for fixing that can prevent wrinkles from occurring on a roller surface. The roller for fixing includes at least an elastic layer on a core metal and includes a thermal conductive fluororubber latex layer containing a mixture of fluororubber, fluororesin and thermal conductive fillers more outer side than the elastic layer, wherein an intermediate layer made of silicone rubber having higher thermal conductivity than the thermal conductive fluororubber latex layer is provided between the thermal conductive fluororubber latex layer and the elastic layer, and the intermediate layer is configured so that an elastic parameter Y(=H×T) satisfies a relational expression: Y?4200 where H (degree) is Asker-C hardness of the silicone rubber having higher thermal conductivity (500 g load) and T (?m) is a thickness of the silicone rubber having higher thermal conductivity.

Abstract: A pressure member contacts with a heating member 23 to form a nip part N where a recording material P is heated and pinched-conveyed, and includes a first elastic layer 24a and a second elastic layer 24b having higher thermal conductivity than that of the first elastic layer. An elastic layer is formed in combination of the first elastic layer and the second elastic layer so that the thickness of the second elastic layer at the end portion is thicker than the thickness of the second elastic layer at the center portion in a longitudinal direction perpendicular to a recording material conveyance direction. Accordingly, in the pressure member contacting with the heating member to form the nip part, it is possible to reduce a difference between a center nip width and an end-portion nip width of the nip part.

Abstract: A pressure roller forming a nip portion for contacting to a heating member to pinch and convey and heat recording material includes: a core metal and an elastic layer containing filler, the elastic layer containing the filler including thermal conductive filler with length of not less than 0.05 mm and not more than 1 mm and with thermal conductivity ?f in the longitudinal direction in a range of ?f?500 W/(m·k) being dispersed in not less than 5 vol % and not more than 40 vol % and the elastic layer containing the filler providing thermal conductivity ?y in the longitudinal direction perpendicular to a recording material conveyance direction being ?y?2.5 W/(m·k) and ASKER-C hardness of the filler being not more than 60 degrees, wherein a solid rubber elastic layer with thermal conductivity ? in a thickness direction being not less than 0.16 W/(m·k) and not more than 0.

Abstract: In a heat fixing member which is a seamless type cylindrical heat fixing member having an elastic layer, the elastic layer is mixed with carbon fibers, and the elastic layer has a thermal conductivity of 1.0 W/(m·K) or more in the thickness direction thereof. A heat fixing member is provided which is more improved in the thermal conductivity in the thickness direction, can efficiently supply heat to the heating object (recording medium) at the time of high-speed printing, can give fixed images having a high glossiness in virtue of the elastic layer, which has secured a sufficient flexibility. A high-performance heat fixing assembly is also provided which can conduct sufficient heat to toner images even if the dwell time is shortened.