Fuji Photo Film Company, Limited

Fujifilm Corporation

Fuji Xerox Co., Ltd.

Yoshio Tani

Yasutomo Goto

Katsumi Harada

Yoshisada Nakamura

Ashita Murai

Kyoichi Naruo

Takashi Kobayashi

Masataka Murata

Shinji Fujimoto

Shigehisa Tamagawa

Kiyoshi Hosoi

Masao Yabe

Yoshio Kanesawa

Sadao Okano

Kazuo Asaka

Tadashi Takehana

Hiroshi Yamamoto

Yasuo Sakaguchi

Yasuhiro Ogata

Fujio Kakimi

Yutaka Nogami

Kazuhito Miyake

Fuyuhiko Mori

Hiroshi Kajimaru

Masuo Murakami

Tetsuo Matsumoto

Eizi Takahashi

Mitunori Hachisuka

Sin Togami

An image recording material which has a support and an image recording layer containing a crystalline polymer and an amorphous polymer on at least one surface of the support, wherein the image recording layer has a storage elastic modulus G' at 100&#xb0; C. of 1&#xd7;10Pa to 1&#xd7;10Pa during a temperature increase at 5&#xb0; C./min, a storage elastic modulus G&#x2032; at 60&#xb0; C. of 1&#xd7;10Pa or more during a temperature decrease at 5&#xb0; C./min and a temperature difference of 18&#xb0; C. or less between a temperature at which the storage elastic modulus G&#x2032; during a temperature increase at 5&#xb0; C./min reaches 1&#xd7;10Pa and a temperature at which the storage elastic modules G&#x2032; during a temperature decrease at 5&#xb0; C./min reaches 1&#xd7;10Pa, upon measurement of viscoelasticity by using a rheometer of plate-to-plate distance: 1.5 mm, diameter: 20 mm.

Image recording material, method for producing the same, and image forming method

The present invention provides an electrophotographic image receiving sheet including a support, and at least two toner image receiving layers formed over at least one surface of the support, wherein a mixture mass ratio M of a crystalline polymer and an amorphous polymer in each of the toner image receiving layers is defined as [A/(A+B)], where A represents a mass of the crystalline polymer (g), and B represents a mass of the amorphous polymer (g), and a mixture mass ratio Mof the outermost toner image receiving layer which is located farthest from the support, and a mixture mass ratio Mof the highest inner toner image receiving layer, which has the highest mixture mass ratio among the inner toner image receiving layers located under the outermost toner image receiving layer, satisfy the relation: M&#x3c;M

Electrophotographic image receiving sheet and image forming method using the same

Provided are an electrophotographic image-receiving sheet that comprises a support, a toner image-receiving layer on at least one side of the support, wherein the toner image-receiving layer is formed from a coating liquid for the toner image-receiving layer and the coating liquid for the toner image-receiving layer comprises an aqueous dispersion that comprises a crystalline polymer, and an image forming method that employs the electrophotographic image-receiving sheet.

Electrophotographic image-receiving sheet, method for producing the same and image forming method

An electrophotographic image receiving sheet comprises a support and a toner image receiving layer that is formed on at least one surface of the support and contains a mixture of a linear amorphous polymer having a glass-transition temperature (Tg) in a range of from 40&#xb0; to 120&#xb0; C. and a linear crystalline polymer having a melting temperature (Tm) in a range of from 100&#xb0; to 200&#xb0; C. These linear amorphous polymer and linear crystalline polymer satisfy 1.0&#xd7;Tg(K)&#x2266;Tm(K)&#x2266;1.5&#xd7;Tg(K).

Electrophotographic image receiving sheet and method of forming electrophotographic image

An electrophotographic image-receiving sheet which includes a support, a toner-receiving layer which contains thermoplastic resin. The fixing belt electrophotographic sheet has an optimized separation force at a surface of the electrophotographic image-receiving sheet from the toner-receiving layer. Having a highly improved long-run properties, the fixing belt electrophotographic sheet realizes a stable paper feed without offset, and provides a good quality image with rich photographic features.

Electrophotographic image-receiving sheet and image-forming process using the same

It is an object of the present invention to provide an image-recording process and an image-recording apparatus, even at high density image and high speed image output, capable of suppressing the occurrence of curl in the final image sheet, and controlling and giving the desired direction and size of the curl. For this purpose, an image-recording process includes recording an image on an image-recording material which includes a thermoplastic resin contained layer on a support, heating the image-recording material to a temperature higher than a glass transition temperature of thermoplastic resin in the thermoplastic resin contained layer, controlling the curl by contacting a curl controlling member with at least a part of the image-recording material, and cooling the image-recording material to a temperature below the glass transition temperature of the thermoplastic resin.

Image-recording process including curl-controlling and cooling and image-recording apparatus

A base support for an image recording material strikes a balance between high flatness and superb stiffness and is favorably available for various image recording mediums capable of providing high quality. The base support comprising at least base paper satisfying a ratio of subsurface internal bond strength A relative central internal bond strength B that is represented preferably by A/B&#x2266;0.7, and more preferably by 0.3&#x2266;A/B&#x2266;0.7. The subsurface internal bond strength is preferably from 90 to 150 mJ.

Base support for image recording medium and method of manufacturing the same and image recording medium

The object of the present invention is to provide an image-recording material that may prevent a flocculation of a coating liquid for image-recording layer that contains a water-dispersible emulsion and a water-soluble polymer compound, and that may exhibit an enhanced stability, present an improved film-forming performance, and provide superior surface conditions. In order to achieve the object, an image-recording material according to the present invention is provided, in which the image-recording material comprises a support and at least one image-recording layer on the support, wherein the image-recording layer is formed from a water-dispersible emulsion of which volume-average particle size is 55 nm or more and a water-soluble polymer compound of which weight-average molecular weight (Mw) is 400,000 or less. Preferably, the water-dispersible emulsion is a polyester emulsion. Preferably, the water-soluble polymer compound is polyethyleneoxide.

Image-recording material, process for producing the same and process for forming image

The present invention aims to provide an process for image formation using an electrophotographic image-receiving sheet having excellent anti-offset properties, adhesion resistance, paper transport properties and gloss, and being resistant to cracks, and able to form a high-definition image. For this purpose, there is provided an electrophotographic image-receiving sheet which includes a toner image-receiving layer containing at least a thermoplastic resin and natural wax having an light transmittance of 78% or less, on a support having an light transmittance of 30% or less, and an process for image formation using this electrophotographic image-receiving sheet.

Electrophotographic image-receiving sheet and process for image formation using the same

The present invention discloses an image receiving material for electronic photograph comprising a support made of base paper having a thermoplastic resin layer on each side of the support; a toner receiving layer, provided on one side of said support, which contains a thermoplastic resin; and one or more back layers provided on the other side of said support, wherein thermoplastic resin, porous particles and a cationic material are contained in any one of said back layers. Such image receiving material for electronic photograph of the present invention has a right side which is excellent in glossiness and thus allows electronic photographic image full of photographic touch to be formed thereon, and a back side having desirable printability for both of electronic photographic image and ink-jet printed image.

Image receiving material for electronic photograph

The present invention aims to provide a recording material support having superior excellent surface smoothness and water resistance compared to the related art, to a process for efficiently manufacturing this recording material support, to a recording material which can form an image having excellent quality and gloss using this recording material support, and to process for image formation using this recording material. For this purpose, the recording material support comprising at least raw paper satisfies at least one condition selected from the Cobb size (30 seconds) of the surface on the side provided with the image-forming layer of the support, Oken type smoothness, St&#xf6;kigt sizing degree, central square average roughness (SRa) and variation amount (&#x394;SRa) of SRa.

Recording material support, process for manufacturing the same, recording material and process for image formation

An electrophotographic image receiving sheet with a toner image receiving layer containing a release agent and formed on a support sheet for use in a fixing belt type electrophotography is disclosed. The toner image receiving layer satisfies the following condition:&#x3b3;&#x2267;2.5[mJ/m]where &#x3b3;spand &#x3b3;spare values of a polar component of surface free energy of the image receiving layer before heating the image receiving sheet and after having heated the image receiving sheet to 120&#xb0; C. and then cooled it to 25&#xb0; C., respectively.

Image receiving sheet for fixing belt type electrophotography and image forming method using the same

In the image forming process of the present invention wherein a toner is fixed on an electrophotographic image-receiving sheet using a belt fixing and smoothing device, the relationship among the temperature of a heating and fixing roller, the melting point of a toner wax, and the glass transition point of a toner binder, the relationship among the temperature of a heating and fixing roller, the melting point of a wax in the image-receiving layer, and the glass transition point of a binder in the image-receiving layer, and the relationship between the polar components of surface free energy of the toner-image-receiving layer before and after image fixing are optimized. The present invention is to prevent offset in the toner and the toner-image-receiving layer of the electrophotographic image-receiving sheet upon releasing of the belt and to avoid deterioration in image quality especially in operation over the long run.

Image forming process and image forming apparatus

To produce images at high speed, to conserve energy, and to be satisfactorily operated over the long run, a method fixes a toner onto an electrophotographic image-receiving sheet with the use of a belt fixing and smoothing apparatus and thereby forms an electrophotographic image. The belt fixing and smoothing apparatus includes a hot-pressing member, a belt member, a cooling device, and a cooling-releasing section. In the method, the total heat capacity per unit area in portions where the belt member, the toner, and the electrophotographic image-receiving sheet are in contact with one another is 840 J/K/mor less.

Provided is an image forming process which can effectively suppress the occurrence of separation electrification between a belt surface layer and an image-receiving layer of an electrophotographic image-receiving sheet at a cooling and separation unit, prevent dust from adsorbing to charges at each surface thereof, and print high quality images having near-photographic quality, in which a belt-fixing smoothing device having a heating and pressuring member, a belt member, a cooling device, and a cooling and separating unit is used to conduct fixing treatment to an electrophotographic image-receiving sheet. In this case, a surface resistivity (SR) of one side of the image-receiving sheet on which an image is formed satisfies the formula 1.0&#xd7;10&#x3a9;/cm&#x2266;SR&#x2266;1.0&#xd7;10&#x3a9;/cm, and a surface resistivity (SR) of one side of the belt member which becomes in contact with the image satisfies the formula SR&#x2266;1.0&#xd7;10&#x3a9;/cm.

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Shizuoka, Japan

Yoshio Tani