Abstract: In a case where a region of a heating pressurization unit in a longitudinal direction of the heating pressurization unit where the heating pressurization unit heats and pressurizes a sheet of a maximum size is a first region, and a region of the heating pressurization unit in the longitudinal direction where the heating pressurization unit heats and pressurizes a sheet of a minimum size is a second region, and a region of the heating pressurization unit inside the first region and outside the second region in the longitudinal direction is a third region, the heating pressurization unit heats and pressurizes the sheet of the maximum size with a pressurization force profile having a minimum value in the longitudinal direction at a position in the third region or a position of an end portion of the second region adjacent to the third region.

Abstract: Each adhesive toner image is formed so that at least one of the adhesive toner image bonding a front cover and a middle page together and the adhesive toner image bonding a back cover and a middle page together becomes greater in area than the adhesive toner image bonding the middle pages together when viewed from a direction perpendicular to a surface of a recording material, and a booklet is generated so that the adhesive toner image bonding the front cover and the middle page together, the adhesive toner image bonding the back cover and the middle page together, and the adhesive toner image bonding the middle pages together overlap when viewed from the direction perpendicular to the surface of the recording material.

Abstract: An image forming apparatus includes an image forming unit configured to form a visible image and a bonding pattern on a sheet, and a bonding unit configured to heat a plurality of sheets in a stacked state, to bond the plurality of sheets together via the bonding pattern. The bonding pattern includes a first side portion, a second side portion, a third side portion, a first corner portion, a second corner portion, and a third corner portion. The second corner portion and the third corner portion are curved such that a minimum value of a radius of curvature of the second corner portion and a minimum value of a radius of curvature of the third corner portion are greater than a minimum value of a radius of curvature of the first corner portion.

Abstract: A heater heats sheets to which a powder adhesive has been applied in a binding margin. A pressing member manufactures a booklet by applying pressure to the sheets. In a first adhesion mode, an application amount of the powder adhesive applied to the binding margin is a first application amount and a heat parameter proportional to an amount of heat applied to the sheets is a first value. In a second adhesion mode, the application amount of the powder adhesive applied to the binding margin is a second application amount and the heat parameter is a second value. The first value is higher than the second value. The first application amount is lower than the second application amount.

Abstract: A recording medium capable of reducing a color gamut change is provided. The recording medium includes a plurality of coloring layers and at least one diffusion reduction layer. Each of the coloring layers includes a coloring compound that is electron-donative, a developer that is electron-acceptive, and matrix resin. The diffusion reduction layer is provided between the coloring layers adjacent to each other. The diffusion reduction layer is capable of reducing diffusion of the coloring compound between the coloring layers adjacent to each other during heating of the recording medium.

Abstract: Provided is a sheet thermocompression apparatus for bonding a plurality of sheets to one another, the sheet thermocompression apparatus including: a loading portion in which sheets having adhesion toner formed thereon are loaded in a loading direction; and a thermocompression unit including a pressing member elongated in a longitudinal direction, for pressing the sheets loaded in the loading portion in the loading direction, and a heating source for heating the pressing member. In a case where the pressing member is viewed from the loading direction, the pressing member overlaps a region of a sheet loaded in the loading portion from one end portion to the other end portion in the longitudinal direction. The heating source is capable of heating an end portion and a center portion of the pressing member in the longitudinal direction to different temperatures.

Abstract: A sheet thermocompression apparatus for bonding a plurality of the sheets to one another, and configured to be compatible with the sheets with a plurality of prescribed sizes. The apparatus includes a loading portion to be loaded with the bundle of sheets each including the adhesion layer formed thereon and a thermocompression unit. The thermocompression unit includes (i) a pressing member pressing the bundle of sheets loaded on the loading portion in a loading direction of the sheets, a longitudinal direction of the pressing member is a direction along one edge of the sheets loaded on the loading portion, (ii) a heating source heating the pressing member, and (iii) a temperature measuring sensor arranged at a position not overlapping a minimum sheet with a minimum size of the prescribed sizes loaded on the loading portion in the loading direction, and detects a temperature of the heating source.

Abstract: An image forming apparatus can include an image forming unit that prints a plurality of toner images formed by using toners of first, second and third toners onto a recording material in a superimposed manner, the image forming unit forms first to third toner images; a transfer unit for transferring onto the recording material in a superimposed manner the first to third toner images in this order, which is an order closer to the recording material; and a fixing unit including heating unit for heating the recording material from the side where the toner images are transferred, the fixing unit being configured to heat and melt the toner images to fix the toner images onto the recording material. Among the first to third toners, the first toner has the highest elastic modulus, and the second toner has the lowest elastic modulus.

Abstract: An image forming apparatus at least comprising: first image forming means for forming a first adhesive layer of a first toner on a sheet; and second image forming means for forming a second adhesive layer of a second toner on the first adhesive layer, adhesive image patterns are formed from the first and the second adhesive layer, the image forming apparatus further comprising specific booklet bonding means, wherein at least both the first and the second adhesive layer are formed on one of a first sheet and a second sheet that face each other in the sheet bundle, at least the first adhesive layer is formed on the other of the first sheet and the second sheet, and G1>G2 is satisfied, where G1 denotes a storage elastic modulus of the first toner, and G2 denotes a storage elastic modulus of the second toner.

Abstract: A booklet forming device includes a sheet support portion, and a bonding unit including a pressurizing member and configured to form a bonding layer. In a case of forming a first booklet including a first number of sheets, the bonding unit is operated under a first operation condition so that a thickness of the bonding layer positioned closest to the pressurizing member in the first booklet becomes a first thickness. In a case of forming a second booklet including a second number of sheets more than the first number of sheets, the bonding unit is operated under a second operation condition different from the first operation condition so that the thickness of the bonding layer positioned closest to the pressurizing member in the second booklet becomes a second thickness larger than the first thickness.

Abstract: An image forming apparatus includes an image forming portion, a fixing portion configured to heat the toner image formed on the sheet by the image forming portion and fix the toner image to the sheet, a folding portion configured to fold the sheet having passed through the fixing portion such that a surface of the sheet to which the powder adhesive is applied is inside, and a bonding portion configured to heat the sheet folded by the folding portion and bond the sheet by the powder adhesive. A relationship of Tmax1>Tmax2 is satisfied, where Tmax1 (° C.) is a highest temperature of the powder adhesive when being heated by the fixing portion and Tmax2 (° C.) is a highest temperature of the powder adhesive when being heated by the bonding portion.

Abstract: A cap comprising a cap body including a top plate portion which is disk-shaped, and a skirt portion which is cylindrical and provided at a peripheral edge portion of the top plate portion, the top plate portion including a substrate and a resin coating film provided on a cap inner surface side of the substrate, the resin coating film including a polyester-based resin and a lubricant, and a sealing member provided in the cap body separately from the cap body so as to face the top plate portion, and having an outer diameter smaller than an inner diameter of the skirt portion.

Abstract: A cap comprises a cap body including a top plate portion and a skirt portion integrally provided with the top plate portion through a corner portion and screwed to a mouth portion of a can container, and a disk-shaped sealing member including a sliding layer which is provided separately from the cap body to face the top plate portion, includes a protrusion portion formed on an outer peripheral side of a portion opposed to the mouth portion when the cap body is screwed with the can container and gradually decreasing in thickness toward an outer peripheral edge, and slides on the top plate portion and a sealing layer which is integrally provided with the sliding layer and seals the mouth portion.

Abstract: The laminate includes: a base material; an intermediate layer provided on the base material and having an accommodation part; a recording medium provided in the accommodation part; and an overlay layer provided on the intermediate layer. The accommodation part is provided in a part of a plane of the intermediate layer, and the accommodation part is a through hole penetrating in the thickness direction of the intermediate layer or a recess recessed in the thickness direction of the intermediate layer. The recording medium includes a color development layer containing: a coloring compound having an electron donating property; a developer having an electron accepting property; and a matrix resin. The base material, the intermediate layer, and the overlay layer contain the same type of resin material. The base material and the intermediate layer are bonded to each other by fusion, and the intermediate layer and the overlay layer are bonded to each other by fusion.

Abstract: A cap includes: a cap body including a top plate and a skirt having a tubular shape disposed on a circumferential edge of the top plate, a sealing member disposed on an inner surface of the top plate and configured to seal a mouth of a container, a slit extending in a circumferential direction of the skirt, and a worked portion formed at least in a part of the slit in the circumferential direction on at least a side of the slit closer to the top plate.

Abstract: An image forming apparatus includes: an image bearing member that carries a developer image; a transfer member that forms a transfer nip portion with the image bearing member and transfers the developer image in the transfer nip portion from the image bearing member to a recording material; a fixing portion that includes a heater and fixes the developer image to the recording material using heat of the heater; a temperature detection portion that detects a temperature of the fixing portion; a control portion that controls power supplied to the heater such that the temperature detected by the temperature detection portion becomes a predetermined control target temperature; and an acquisition portion that acquires a temperature of the image bearing member or the transfer member. The control target temperature is changed based on the temperature acquired by the acquisition portion.

Abstract: A cap includes a cap body including a disk-shaped top plate portion and a cylindrical skirt portion provided at a peripheral edge portion of the top plate portion; and a disk-shaped sealing member including a sliding layer and a sealing layer, the sliding layer disposed on the top plate portion side and having a thin portion thinner than at least a center side provided on an outer peripheral edge side, and the sealing layer provided on a main surface opposite to the top plate portion side of the sliding layer and sealing a mouth portion of a can container.

Abstract: A cap includes: a cap body including a top plate portion and a cylindrical skirt portion; a sealing member provided in the cap body separately from the cap body so as to face the top plate portion; a plurality of locking portions arranged in a circumferential direction in the skirt portion, the locking portions protruding inward in a radial direction of the skirt portion and supporting the sealing member; a plurality of small diameter portions arranged between the top plate portion and the locking portions of the skirt portion, the small diameter portions being respectively provided on a top plate portion side of the locking portions in the axial direction; and a plurality of large diameter portions provided adjacent to the small diameter portions in the circumferential direction and having an inscribed circle diameter larger than an inscribed circle diameter of the plurality of small diameter portions.

Abstract: An image forming apparatus includes an image forming portion, a fixing portion configured to perform a fixing process in which the fixing portion fixes the image and the powder adhesive to the sheet, and a bonding portion configured to perform a bonding process in which the bonding portion bonds the plurality of sheets to each other with the powder adhesive by using the heating member to heat and press the plurality of sheets, wherein P1<P2 is satisfied, where P1 (MPa) is a peak value of pressure received by the sheet in the fixing process, and P2 (MPa) is a peak value of pressure received by the sheet in the bonding process.

Abstract: A reversible recording medium according to an embodiment of the present disclosure includes a first recording layer to be colored in a first color, a second recording layer to be colored in a second color, the second color being different from the first color, and a first intermediate layer provided between the first recording layer and the second recording layer, the first intermediate layer including a plurality of layers respectively containing materials different from each other.