Dai Nippon Printing Co., Ltd.

Takeshi Ueno

Mineo M Yamauchi

Katsuyuki Oshima

Mikio Asajima

Hidetake Takahara

Kazunobu Imoto

Tatsuya Kita

Jitsuhiko Ando

Naoji Shibasaki

Katsuyuki Ohshima

Hitoshi Saito

Hiroshi H Eguchi

Hideaki Sato

Hideo H Fujimura

Satoshi Narita

Junichi Hiroi

Haruo Takeuchi

Yoshinori Kamikubo

Nobuyuki Harada

Ryohei Takiguchi

Yoshinori Nakano

Katsuyki Oshima

Hidetaki Takahara

Disclosed is a thermal transfer image receiving sheet comprising a substrate sheet, an intermediate layer provided on at least one surface side of the substrate sheet and a dye receptor layer provided on the surface of the intermediate layer, wherein the substrate sheet is a pulp paper, the intermediate layer is formed from an organic solvent solution of a resin, and the dye receptor layer is formed from an aqueous resin liquid. By virtue of this structure, the thermal transfer image receiving sheet can be prevented from occurrence of curling caused by temperature change. Also disclosed is a thermal transfer image receiving sheet comprising a substrate sheet, an intermediate layer provided on at least one surface side of the substrate sheet and a dye receptor layer provided on the surface of the intermediate layer, wherein the intermediate layer is formed from either an acrylic resin or a resin at least a part of which is crosslinked. By virtue of this structure, the thermal transfer image receiving sheet can be excellent in smoothness, strength, cushioning properties and writing properties, and further can give an image of high density and high resolution.

Thermal transfer image receiving sheet

A transfer sheet, for an adhesive layer, for use in the formation of an image by a thermal transfer process, an image forming method using the transfer sheet for an adhesive layer, and an object with an image formed thereon are disclosed. A transfer sheet for an adhesive layer comprises: a substrate sheet ; and an adhesive layer and an interposing layer laminated in that order on the substrate sheet . The substrate sheet and the adhesive layer are separable from each other. The use of the transfer sheet for an adhesive layer in combination with an intermediate transfer medium enables a desired image having a high quality to be efficiently formed on a particular article.

Transfer sheet for adhesive layer and use thereof

An image forming method for forming an image on an optical disk includes forming the image on an intermediate transfer medium or on an image receptive layer separably formed on one surface of the intermediate transfer medium. The intermediate transfer medium and the optical disk are laid so that the surface of the intermediate transfer medium carrying the image and the surface of the optical disk are in close contact with each other. Heat and/or pressure is applied to the intermediate transfer medium to transfer the image or the image receptive layer carrying the image to the optical disk to form a label on the optical disk.

Optical disk, method of forming image on optical disk, image forming apparatus and adhesive layer transfer sheet

A transfer sheet, for an adhesive layer, for use in the formation of an image by a thermal transfer process, an image forming method using the transfer sheet for an adhesive layer, and an object with an image formed thereon are disclosed. A transfer sheet for an adhesive layer comprises: a substrate sheet and an adhesive layer and an interposing layer laminated in that order on the substrate sheet The substrate sheet and the adhesive layer are separable from each other. The use of the transfer sheet for an adhesive layer in combination with an intermediate transfer medium enables a desired image having a high quality to be efficiently formed on a particular article.

Disclosed is a thermal transfer image receiving sheet comprising a substrate sheet, an intermediate layer provided on at least one surface side of the substrate sheet and a dye receptor layer provided on the surface of the intermediate layer, wherein the intermediate layer is formed from either an acrylic resin or a resin at least a part of which is crosslinked. By virtue of this structure, the thermal transfer image receiving sheet can be excellent in smoothness, strength, cushioning properties and writing properties, and further can give an image of high density and high resolution.

Thermal transfer image-receiving sheet

A thermal transfer recording system, there is prepared a thermal transfer sheet such as a sublimation or heat fusion thermal transfer sheet, and also prepared an intermediate transfer recording medium comprising a substrate sheet and a receptor layer disposed on the substrate sheet so as to be transferable; the thus prepared thermal transfer sheet is disposed together with the intermediate transfer recording medium between a heating device such as a thermal head and a platen roller; the thermal head is heated in accordance with an image information to be printed to thereby form the image in the receptor layer of the intermediate transfer recording medium; and thereafter, the image is transferred together with the receptor layer to a transfer-receiving material. When the image is formed to the intermediate transfer recording medium, the intermediate transfer recording medium is pressed at least at one area thereof from front surface side and back surface side thereof so as to fix a relative positional relationship between both ends in a width direction of the intermediate transfer recording medium, to thereby prevent shrinkage of the intermediate transfer recording medium in the width direction thereof.

Thermal transfer recording method and apparatus utilizing intermediate

A thermal transfer sheet including: a substrate, a thermal transfer layer provided on one side of the substrate, and a heat-resistant slip layer, containing particles, provided on the other side of the substrate, the shot-type abrasion loss of the particles contained in the heat-resistant slip layer being 15 to 100 mg. A thermal transfer sheet including: a substrate, a heat-transferable colorant layer provided on one side of the substrate; and a heat-resistant slip layer, containing an inorganic filler, provided on the other side of the substrate, the inorganic filler comprising a main component and an impurity, the hardness of the main component and the hardness of the impurity having the relationship: main component&lt;impurity, the ratio of the highest diffraction line intensity Y of the impurity to the highest diffraction line intensity X of the main component in the X-ray diffraction of the inorganic filler being 0.03.ltoreq.Y/X.ltoreq.0.20.

Thermal transfer sheet

A process for producing a thermal transfer image-receiving sheet, wherein the transferable resin layer of a receiving layer transfer sheet is transferred to a substrate sheet.

A thermal transfer image-receiving sheet including a substrate sheet and a dye-receptive layer provided directly or through an intermediate layer on one surface of the substrate sheet, the dye-receptive layer having a surface roughness of center line average height Ra=1.0-4.0 .mu.m, maximum height R.sub.max =15.0-37.0 .mu.m and 10-point average height Rz=10.0-30.0 .mu.m. Also disclosed is a thermal transfer image-receiving sheet comprising paper as a substrate sheet and, provided on the substrate sheet in the following order, an expanded layer and a receptive layer, an undercoat layer being provided between the substrate sheet and the expanded layer. Also disclosed is a thermal transfer image-receiving sheet comprising a substrate sheet of paper composed mainly of pulp and, provided on the substrate sheet in the following order, an expanded layer, an intermediate layer and a receptive layer, the intermediate layer having been formed by coating an aqueous coating solution.

There is provided a receptor layer transfer sheet which is capable of providing images of high quality on a transfer receiving material having an unsmooth surface, even when it is used in combination with a conventional thermal transfer material. There is also provided a thermal transfer sheet which is capable of providing images of high quality on a transfer receiving material having an unsmooth surface. There is further provided a thermal transfer method and a thermal transfer apparatus which are capable of providing images of high quality and do not require a special detection mark provided in (or on) a thermal transfer sheet to be used in combination therewith.

Receptor layer transfer sheet, thermal transfer sheet, thermal transfer

According to the present invention, a gradation image such as photographs and a non-gradation image read by an image processing means 13 of FIG. 2 are edited and laid out. Based on the data file, a dye receiving layer 21 is formed on a gradation image forming area on a paper mount 26 of FIG. 3 by image generating means 18, and a gradation image 22 is formed by thermal transfer method on said dye receiving layer. A non-gradation image 23 such as character combined with the gradation image is printed before and after the formation of the gradation image. Further, a protective layer 24 is formed on the gradation image 22 or the non-gradation image 23 when necessary, by protective layer transfer means incorporated in the image forming means 18. Thus, a card such as a visiting card 20 with a photograph or a booklet such as a passport can be prepared. The gradation image and the non-gradation image can be transferred on plain paper, and by limiting the receiving layer area to the gradation image area, it is possible to form the images without impairing texture feeling and writability as plain paper. When the image is formed using a thermal transfer image receiving sheet with an arbitrary pattern (such as ground pattern), such pattern forms a background for the image, and this makes it possible to prevent falsification or alteration.

Growing community of inventors

Tokyo-to, Japan

Takeshi Ueno