Dai Nippon Insatsu Kabushiki Kaisha

Dai Nippon Printing Co., Ltd.

Nkk Corporation

Masahisa Yamaguchi

Noritaka N Egashira

Masaki M Kutsukake

Tatsuya Kita

Yoshikazu Ito

Kazunobu Imoto

Yasuki Suzuura

Toshikazu Nishio

Hiroyuki Amemiya

Yasuo Nakai

Taiji Ishii

Toshiyuki Suzuki

Rikiya Yamashita

Masanori Akada

Isao Inoue

Takao Suzuki

Tamami T Iwata

Takaki Miyachi

Koichi Asahi

Kazuhito Fujii

Kayo Hasegawa

Mikizo Mizuno

Shinichiro Mori

Yasuhiro Harada

Tohru Ishii

Kazuyoshi Sorimachi

Chikao Kumaki

Katsuhiko Sasada

Kojiro Okawa

Koji Otsuka

Hiroshi Yamada

Hiroshi Yamamoto

Takahiro Kawai

Hitoshi Fujii

Shuichi Kobayashi

Miho Ono

A dustfree filling and sealing apparatus is disclosed. A pair of wrapping clean filmswhich are free of cleaning are supplied from a pair of wrapping clean film supply means. Two outer layer filmsare peeled off and removed from the wrapping clean filmsby a pair of outer layer film peeling-off means. Thus, clean surfaces of inner layer filmsappear. The two inner layer filmsare conveyed by a pair of inner layer film conveying meansso that these films are opposed. An objectis inserted between the inner layer filmsby an object filling means. The inner layer filmsare sealed by an impulse seal head. The present invention also discloses a wrapping clean film producing method and a dustfree container.

Dustfree filling and sealing apparatus, dustfree container and wrapping clean film producing method

Provided are an abrasive tape suitable for finishing of surfaces or the like of precision components such as optical connector ferrules and semiconductor wafers, and a process for producing it. A coating agent in which abrasive particles having an average particle size in the range of 1 to 200 m&mgr; are dispersed in a binder resin solution. The coating agent is applied, with intervention of a primer layer if necessary, onto a base for abrasive tape to form an abrasive layer, thus obtaining an abrasive tape.

Abrasive tape, process for producing it, and coating agent for abrasive tape

Provided are an abrasive tape suitable for finishing of surfaces or the like of precision components such as optical connector ferrules and semiconductor wafers, and a process for producing it. A coating agent in which abrasive particles having an average particle size in the range of 1 to 200 m.mu. are dispersed in a binder resin solution. The coating agent is applied, with intervention of a primer layer if necessary, onto a base for abrasive tape to form an abrasive layer, thus obtaining an abrasive tape.

Abrasive tape, process for producing it, and coating agent for abrasive

Each of a pair of clean packaging films comprises a base structure consisting of a base layer and a heat-sealing layer, an outer protective film, and inner protective film. The pair of clean packaging films are superposed after the outer and the inner protective films are peeled off, and the superposed pair of packaging clean films are sealed properly to obtain pouches having clean inside and outside surfaces.

Packaging clean film and packaging pouch

The present invention relates to a polyethylene-2,6-naphthalate film comprising a resin composed mainly of polyethylene-2,6-naphthalate and having an intrinsic viscosity .eta. in the range of from 0.31 to 0.6, said film having stretch ratios of 1 to 3 times and 1 to 3 times or 3 to 6 times and 1 to 1.8 times respectively in substantially mutually perpendicular directions and a thickness in the range of from 5 to 150 .mu.m;

Film formed from polyethylene-2,6-naphthalate resin, process for

For producing an abrasive tape (11) including a film substrate (2) and a polishing abrasive layer (10) laminated on one surface of the film substrate (2) and having on the outer surface thereof a plurality of recessed parts (9), the film substrate (2) is wrapped partially around the outer peripheral surface of a roll formplate (1) having on the surface thereof a plurality of concavities (5), and, as the roll formplate (1) is rotated, the film substrate (2) is fed thereto. On one hand, an ionizing radiation curing type resin (3) is supplied into the interface between the roll formplate (1) and the film substrate (2) therearound to be formed by the concavities (5), and the recessed parts (9) are formed on the resin surface. During this forming, radiation rays (R) are projected from an ionizing radiation ray source (8) toward the resin (3) thereby to cure the resin (3) and, at the same time, to render the resin (3) and the film substrate (2) into an integral structure. The abrasive tape (11) obtained in this manner is separated from the roll formplate (1). The abrasive tape (11) thus obtained is of high product quality. The production method is highly efficient and is suitable for mass production of abrasive tapes of identical concave-convex surface figuration.

Abrasive tape and method of producing the same

An image-receiving sheet comprising a base sheet and a receiving layer, provided on one surface of said base sheet, for receiving a dye or a pigment migrating from a heat transfer sheet, said base sheet comprising one or two or more layers, at least one layer of said base sheet having a porous structure or a foamed structure.

Image-receiving sheet

Heat transfer

Process for heat transfer recording

Growing community of inventors

Tokyo-To, Japan

Masahisa Yamaguchi