Sony Chemicals Corporation

Senju Metal Industry Co., Ltd.

Hideaki Takahashi

Jun Takahashi

Akio Ito

Yukiko Murasawa

Koji Watanabe

Masahiko Kanno

Masahiko Abe

Masaya Ito

Junichiro Sugita

Takashi Nozawa

Toshimichi Harada

Takuya Monju

A solder piece that has a rectangular parallelepiped shape formed by a punching process. Any one of the four surfaces of the rectangular parallelepiped other than the surface on which the shear droop portion generated by the punching process is formed and a surface opposite to the surface on which the shear droop portion is formed is a vacuum pickup surface. Each vacuum pickup surface is a sheared surface and extends along a longitudinal direction of the rectangular parallelepiped solder piece. The solder piece may be located in an open cavity in a supply tape with one of only the four vacuum pickup surfaces exposed to be available for vacuum pickup.

Solder piece, chip solder and method of fabricating solder piece

A solder piece that has a rectangular parallelepiped shape formed by a punching process. Any one of the four surfaces of the rectangular parallelepiped other than the surface on which the shear droop portion generated by the punching process is formed and a surface opposite to the surface on which the shear droop portion is formed is sucked surface.

A recording material for back-printing contains (i) a back-printing sheet comprising a transparent substrate, an ink-absorbing layer that is provided on the transparent substrate, and a porous ink-receiving layer that is provided on the ink-absorbing layer and has filler dispersed in a binder resin, and (ii) a back-printing sheet cover film having a cover substrate, and an adhesive layer that has an adhesive resin and is formed on the cover substrate, the refractive index of the filler and the refractive index of the adhesive resin are different to one another. Specifically, the difference between the refractive index of the filler and the refractive index of the adhesive resin is at least 1.0.

Recording material for back-printing

The present invention provides a thermal transfer recording medium having a solvent-resistant layer based on a polyester resin wherein an even ink layer is formed by coating on the solvent-resistant layer. A thermal transfer recording mediumof the present invention comprises a solvent-resistant layerbased on a polyester resin on a substrateand an ink layerbased on a ketone resin on the solvent-resistant layer. The solvent-resistant layercontains a polyethylene wax in the range from 10 to 80% by weight of on the basis of the solid content of the solvent-resistant layer.

Thermal transfer recording media

A recording sheet adaptable to print an image using pigment ink, on which a smear is hardly generated, is provided. A recording sheet includes an ink permeable layer prepared by adding 3-30 parts by weight of a nonionic surfactant including an amine compound as a main component to 30 parts by weight of a water-insoluble component including an inorganic filler and a binder as main components. Ink applied on such an ink permeable layer is directly absorbed into the layer in a depth direction without dispersing in a lateral direction. Therefore, any smear (banding) is hardly generated on a printed image formed on the recording sheet using ink.

Recording sheet

A backprinting recording medium includes a transparent substrate, an ink-absorbing layer formed on the transparent substrate and a porous ink-permeable layer formed on the ink-absorbing layer and produced by dispersing a filler in a binder resin, wherein the binder resin constituting the ink-permeable layer has a glass transition temperature of 10&deg; C. or higher, and a Shore D hardness at 25&deg; C. of 40 or higher.

Backprinting recording medium

A recording material for back printing has a transparent substrate; an ink absorbing layer that is provided on the transparent substrate; and a porous ink transmitting layer that is provided on the ink absorbing layer and comprises a filler dispersed in a binder resin, where ink transmitting layer is crosslinked.

Recording material for back printing

A recording sheet for use with inkjet printers which achieves high color density while being free of bleeding is provided. The recording sheet has an ink-receiving layer and an ink permeable layer arranged on a surface of the ink-receiving layer. The ink permeable layer includes a filler, a surfactant, and a binder. The surfactant includes a fluorosurfactant having perfluoro-alkyl groups in its chemical structure. The ink permeable layer is made hydrophobic as well as lipophobic since hydrophilic groups on the surfaces of the filler particles will be covered by perfluoro-alkyl groups of the fluorosurfactant. This prevents aqueous ink added an organic solvent from dispersing within the ink permeable layer. The ink permeable layer includes a binder containing a water-insoluble resin having a hydroxyl value of 4 or higher (mgKOH/g) to lower the affinity to the ink.

The recording sheet has an ink-receiving layer and an ink permeable layer. The ink permeable layer is arranged on a surface of the ink-receiving layer and includes a filler and a binder. The binder contains as a primary component a water-insoluble polyester resin having a high hydroxyl value in the range of 25 to 65. The ink permeable layer has a significant ink phobicity. The ink permeable layer does not contain a surfactant and is low lipophilic. Thus, when it receives ink containing an organic solvent, the ink does not disperse within the ink permeable layer to provide printed images without bleeding.

Growing community of inventors

Kanuma, Japan

Hideaki Takahashi