Dai Nippon Printing Co., Ltd.

Masayasu Yamazaki

Satoru Kawai

Kenichiro Suto

Katsuyuki Oshima

Kenichiro Sudo

Hitoshi Saito

Shinji Kometani

Takeshi Nozaki

Mineo M Yamauchi

Takayuki Imai

Taro Suzuki

Kozo Odamura

Koichi Shirai

Masahiro Yuki

Shinichi Kurokawa

Masumi Nishizawa

Hirotoshi Kizumoto

Jiro Ohnishi

Naoyuki Mitsuyasu

Minoru Takahashi

The present invention aims to solve a blocking problem of an intermediate transfer recording medium and to provide an intermediate transfer recording medium having excellent separability. The intermediate transfer recording medium comprises: a sheet substrate provided with a resin layer; and a transparent sheet provided with a receptive layer. The transparent sheet provided with the receptive layer has been put on top of the sheet substrate provided with the resin layer so that the resin layer faces the transparent sheet on its side remote from the receptive layer. The resin layer is separable from the transparent sheet to transfer the transparent sheet provided with the receptive layer onto an object. The resin layer has a single layer structure or a multilayer structure of two or more layers.

Intermediate transfer recording medium

The present invention relates to a receiving-layer-forming polyester resin for use in a thermal-transfer image-receiving sheet, comprising:

Receiving-layer-forming resin for use in thermal-transfer image-receiving sheet and thermal-transfer image-receiving sheet using such a resin

The present invention relates to a method for image formation using an intermediate transfer recording medium. An object of the present invention is to provide an intermediate transfer recording medium and a method for image formation which can yield a thermally transferred image possessing excellent various fastness properties even under severe service conditions, can transfer a protective layer onto an image on the object without transfer failure in an accurate and simple manner, and, in addition, can yield a highly lightfast image which is not deteriorated upon exposure to ultraviolet light. The intermediate transfer recording medium comprises: a sheet substrate provided with a resin layer; and a transparent sheet provided with a receptive layer, the sheet substrate provided with the resin layer having been put on top of the transparent sheet provided with the receptive layer so that the transfer sheet faces the resin layer. The transparent sheet including the receptive layer has been half cut, and the peel force necessary for separating the transparent sheet portion including the receptive layer from the resin layer to transfer the transparent sheet including the receptive layer onto an object is in the range of 5 to 100 gf/inch as measured by the 180-degree peel method according to JIS Z 0237.

Intermediate transfer recording medium and method for image formation using the same

The present invention provides an intermediate transfer recording medium which is used to form an image on a transfer-receiving member and a protective layer on the image to thereby impart durability to the image perfectly and which can simply transfer the protective layer to the image with high accuracy and also provides an image forming method. In the intermediate transfer recording medium (,) of the invention, a sheet substrate (,) provided with a resin layer (,) and a transparent sheet (,) provided with a receptor layer (,) are laminated on each other such that the resin layer (,) is peelable from the transparent sheet (,), wherein a portion of the transparent sheet (,) including the receptor layer (,) is provided with half-cut treatment (,). Using the intermediate transfer recording medium (,), a transfer image is formed on the receptor layer (,) and only the image-formed portion is retransferred to the transfer-receiving member to form an image. At this time, because a portion of the transparent sheet (,) is cut at the half-cut portion (,) as the boundary, forming a structure in which the transparent sheet (,) covers the image-formed portion and the transparent sheet functions as a uniform and strong protective layer, necessary durability is imparted perfectly to the image.

Intermediate transfer recording medium and method for forming image

Provided is two kind of thermal transfer sheets comprising a substrate and a white transfer layer, the white transfer layer being to be transferred onto an image-formed portion of an image-receiving sheet. In the one kind, white transfer layer includes a white ink layer containing a white pigment and/or a filler, and has a total light transmittance of 30 to 95% and a haze of 30 to 95% due to the white ink layer. In another kind, the white transfer layer includes a white ink layer and a peeling layer, the white ink layer containing a white pigment and/or a filler, the peeling layer laminated between the white ink layer and the substrate, and capable of causing a cohesive failure thereby converting into an irregular surface of a printed material through a transferring process. The present invention also provides printed materials by the using of the thermal transfer sheets described above and recording methods for producing of the printed materials. The printed material can be used as an electric-decorating display member.

Thermal transfer sheet, image-printed material and recording method

A thermal transfer image receiving sheet is provided which causes none of offset of an antistatic agent, transfer of the antistatic agent onto a carrier roll of a thermal transfer printer, a lowering in whiteness of the thermal transfer image receiving sheet, and a remarkable lowering in coating strength under high humidity environment and possesses excellent and stable antistatic properties. The thermal transfer image receiving sheet comprises: a substrate sheet; a dye-receptive layer provided on at least one side of the substrate sheet; and a conductive layer as at least one layer provided between the substrate sheet and the receptive layer or as at least one layer provided on the substrate sheet in its side remote from the receptive layer. The conductive layer contains a conductive needle crystal. By virtue of the above constitution, the conductive layer possesses excellent adhesion to the substrate sheet and other layers and has high whiteness, and the thermal transfer image receiving sheet causes no change in properties, such as coating strength and the like, with environmental variations and possesses excellent antistatic properties.

Thermal transfer image receiving sheet

A thermal transfer image receiving sheet comprises a substrate sheet and a receptor layer disposed on at least one surface of the substrate sheet, wherein the thermal transfer image receiving sheet contains sulfonated polyaniline as an antistatic agent. The sulfonated polyaniline may be contained in the receptor layer or another layer additionally formed on a front or back surface side of the thermal transfer image receiving sheet.

The present invention aims to provide a thermal transfer image-receiving sheet which does not suffer from any cockle problem, during printing, associated with a printer or a dye transfer film used. The thermal transfer image-receiving sheet comprises a substrate sheet and, provided on at least one surface thereof in the following order, an intermediate layer and a receptive layer, the intermediate layer containing either an acrylic polyol or cellulose acetate butyrate. Further, the present invention provides a thermal transfer image-receiving sheet which has a capability of preventing curling and causes no damage to an image-receiving surface even when image-receiving sheets put on top of each other or one another are used. This thermal transfer image-receiving sheet comprises a back surface layer provided on a substrate sheet in its surface where no image is to be formed, the back surface layer containing an acrylic polyol.

Thermal transfer image-receiving sheet

An image-receiving sheet for thermal transfer printing, comprises a substrate and a receptor layer provided on at least one surface of the substrate. The receptor layer is formed by applying a receptor layer forming composition comprising (a) at least one kind of thermoplastic resin and (b) at least one kind of release agent selected from silicone compounds expressed by the following formula (1):

Image-receiving sheet for thermal transfer printing and method for

A thermal transfer image-receiving sheet comprising a substrate sheet, a dye-receptive layer provided on at least one surface of the substrate sheet, and a backing layer provided on the other surface of the substrate sheet, wherein the dye-receptive layer contains polycaprolactone.

There is provided a thermal transfer image-receiving sheet comprising: a substrate sheet; and a receptive layer provided on at least one side of the substrate sheet, the receptive layer being formed of a receptive layer-constituting resin containing an ethylene terpolymer selected from an ethylene/vinyl acetate/polar group-containing monomer terpolymer and an ethylene/acrylic ester/polar group-containing monomer terpolymer.

There is provided a thermal transfer image-receiving sheet comprising: a substrate sheet; and an image-receiving layer provided on one side of the substrate sheet, the image-receiving layer comprising a copolymer, having an average degree of polymerization of 800 to 2000, of at least vinyl chloride and vinyl acetate as main comonomers.

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Tokyo-To, Japan

Masayasu Yamazaki