Fuji Photo Film Company, Limited

Fujifilm Corporation

Other

Sumitomo Light Metal Industries, Ltd.

Hirokazu Sawada

Akio Uesugi

Atsuo Nishino

Masaya Matsuki

Tsutomu Kakei

Atsushi Matsuura

Shinya Kurokawa

Hirokazu Sakaki

Yoshitaka Masuda

Yoshiharu Tagawa

Yuya Miyagawa

Hideki Suzuki

Yoshinori Hotta

Hisashi Hotta

Hideki Miwa

Kazumitsu Mizushima

Hiroshi Komatsu

Tadashi Hayashi

Shinya Suzuki

Masahiro Endo

Naoyuki Kawanishi

Yusuke Namba

Yasuhisa Nishikawa

Tadashi Endo

Keio Okano

Yuichi Kasuya

Hiroshi Ougi

Junji Kawaguchi

Takanori Mori

Masanori Tsunekawa

Hirokazu Sasaki

Tadashi Asahi

Ichiro Okamoto

Kazuaki Hatano

Koushi Nagae

Tomohide Yamagishi

Provided is a long aluminum foil capable of suppressing, in a case where the aluminum foil is provided with a region where through-holes are not formed, occurrence of deformation at a boundary portion between a region where through-holes are formed and the region where through-holes are not formed. The long aluminum foil includes, in a width direction orthogonal to a longitudinal direction, a perforated portion, a non-perforated portion, and a boundary portion between the perforated portion and the non-perforated portion, in which the perforated portion has a plurality of through-holes penetrating therethrough in a thickness direction, the non-perforated portion does not have a through-hole, the boundary portion has a plurality of through-holes penetrating therethrough in the thickness direction and a plurality of non-through-holes, and an opening ratio of the through-hole in the boundary portion gradually decreases from a perforated portion side to a non-perforated portion side.

Aluminum foil

An object of the present invention is to provide an aluminum foil and an aluminum member for electrodes having good adhesiveness to an electrode material and high conductivity with the electrode material. Provided is an aluminum foil having through holes including an aluminum oxide film having a thickness of 25 nm or less on a surface of the aluminum foil, and further a hydrophilic layer on a part of a surface of the aluminum oxide film.

Aluminum foil and aluminum member for electrodes

An object of the present invention is to provide a method for manufacturing an aluminum plate which is simple, is high in productiveness, allows the use of arbitrary aluminum materials, and can be suitably used for collectors having excellent adhesiveness to active material layers, a collector for a storage device, and a storage device. The method for manufacturing an aluminum plate of the present invention is a method for manufacturing an aluminum plate having an aluminum substrate having a plurality of through holes in a thickness direction, including an oxidized film-forming step of forming an oxidized film by carrying out an oxidized film-forming treatment on a surface of the aluminum substrate having a thickness in a range of 5 &#x3bc;m to 1,000 &#x3bc;m and a through hole-forming step of forming through holes by carrying out an electrochemical dissolution treatment after the oxidized film-forming step.

Method for manufacturing aluminum plate, aluminum plate, collector for storage device, and storage device

A lithographic printing plate support of the invention includes an aluminum plate and an anodized aluminum film which has micropores extending from a surface of the anodized film opposite from the aluminum plate in a depth direction of the anodized film; the micropores each have a large-diameter portion extending from the anodized film surface to an average depth (depth A) of 75 to 120 nm and a small-diameter portion which communicates with the bottom of the large-diameter portion; the average diameter of the large-diameter portion at the anodized film surface is at least 10 nm but less than 30 nm; a ratio of the depth A to the average diameter (depth A/average diameter) of the large-diameter portion is more than 4.0 but up to 12.0; and an average diameter of the small-diameter portion at the communication level is more than 0 but less than 10 nm.

Support for lithographic printing plate and manufacturing method therefor, as well as original lithographic printing plate

A presensitized plate having a long press life and excellent resistance to scum and corrosive micro-stains and capable of on-press development is provided. The presensitized plate includes a photosensitive layer containing (A) a sensitizing dye, (B) a polymerization initiator, (C) a polymerizable compound, and (D) a binder polymer; and a protective layer which are formed on a support in this order. The support is prepared from an aluminum alloy plate containing intermetallic compound particles with a circle equivalent diameter of 0.2 &#x3bc;m or more at a surface density of 35,000 pcs/mmor more and aluminum carbide particles with a maximum length of 1 &#x3bc;m or more in an amount of up to 30,000 pcs/g.

Lithographic printing original plate

A lithographic printing plate support includes an aluminum plate and an anodized film formed at a surface of the aluminum plate and having micropores which extend in a depth direction of the anodized aluminum film from a surface of the anodized film opposite from the aluminum plate. Each of the micropores includes a large-diameter portion and a dendritic small-diameter portion. The lithographic printing plate support has excellent scratch resistance and is capable of obtaining a presensitized plate which exhibits excellent on-press developability and enables a lithographic printing plate formed therefrom to have a long press life and excellent deinking ability after suspended printing.

Lithographic printing plate support and presensitized plate

An aluminum sheet material for lithographic printing plates wherein the number of aluminum carbide particles having a circle equivalent diameter, measured by the PoDFA method, of 3 &#x3bc;m or more is four or less, the number of aluminum carbide particles having a circle equivalent diameter, measured by the PoDFA method, of 3 &#x3bc;m or more.

Aluminum sheet material for lithographic printing plates

The lithographic printing plate support includes an aluminum plate and an anodized film formed on the aluminum plate and micropores extend in the anodized film in a depth direction from its surface opposite from the aluminum plate. Each of the micropores includes a large-diameter portion having a predetermined shape and a small-diameter portion having a predetermined shape. The lithographic printing plate support has excellent scratch resistance and is capable of obtaining a presensitized plate which exhibits excellent on-press developability and enables a lithographic printing plate formed therefrom to have a long press life, and excellent deinking ability in continued printing and after suspended printing.

Provided is a lithographic printing plate support that has excellent scratch resistance and is capable of obtaining a presensitized plate which exhibits excellent on-press developability and enables a lithographic printing plate formed therefrom to have a long press life and excellent deinking ability after suspended printing. The lithographic printing plate support includes an aluminum plate, and an aluminum anodized film formed thereon and having micropores which extend in a depth direction of the anodized film from a surface of the anodized film opposite from the aluminum plate. Each micropore has a large-diameter portion which extends to a depth of 5 to 60 nm (depth A) from the anodized film surface, and a small-diameter portion which communicates with the bottom of the large-diameter portion, further extends to a depth of 900 to 2,000 nm from the communication position and has a predetermined average diameter.

Support for planographic printing plate, method for producing support for planographic printing plate, and planographic printing original plate

A presensitized plate bringing about the lithographic printing plate which exhibits a high resistance to scumming and in which formation of bulges causing image dropouts is suppressed is provided with the lithographic printing plate support which includes an aluminum plate and an anodized film of aluminum provided on the aluminum plate, and has a micropore extending in the anodized film in the direction of depth from a film surface opposite with a film surface facing the aluminum plate. The micropore is sealed at least partially on its inside with protrusions made of boehmite, and the protrusions made of boehmite which are located on the anodized film have a mean height of less than 15 nm.

An apparatus for manufacturing aluminum alloy strip for a lithographic printing plate supports includes a filter, a launder connected to the filter, a liquid level controller connected to the launder, and a melt feed nozzle connected to the liquid level controller. The liquid level controller includes a step to trap settled particles within an aluminum melt which forms the alloy strip. The launder has a length L (m) which satisfies the condition 4&#x2267;L&#x2267;V&#xd7;270&#xd7;1.2&#xd7;D, where V is the flow velocity in meters per second of the aluminum melt in the launder and D is the depth in meters of the aluminum melt in the launder.

Method and apparatus for manufacturing aluminum alloy strip for lithographic printing plates

A lithographic printing plate support in which surface unevenness due to surface treatment has been suppressed and a presensitized plate of excellent sensitivity are produced from an aluminum alloy plate containing iron, silicon, titanium and boron by specifying the state in which TiBparticles are present in the surface layer and the width of the crystal grains, and by having specific indicators relating to the respective concentrations of iron and silicon in the surface layer following graining treatment fall within specific ranges. In a method of manufacturing the lithographic printing plate support, an aluminum alloy melt having specified alloying ingredients is subjected to a specified casting process to have the amount of the alloying ingredients in solid solution following cold rolling fall within specified ranges.

Lithographic printing plate support, method of manufacturing the same, and presensitized plate

In a method of manufacturing an aluminum alloy plate for a lithographic printing plate by continuous casting which includes feeding an aluminum alloy melt through a melt feed nozzle between a pair of cooling rollers and rolling the aluminum alloy melt while solidifying between the pair of cooling rollers, a vessel for feeding the aluminum alloy melt to the melt feed nozzle contains the aluminum alloy melt which is adjusted in such a manner that a vertical amplitude at a level of the aluminum alloy melt existing within the vessel is 10 mm or less. This manufacturing method is capable of obtaining an aluminum alloy plate for a lithographic printing plate with a uniform surface composition and manufacturing a lithographic printing plate support having no surface defect.

Method of manufacturing aluminum alloy plate for lithographic printing plate, aluminum alloy plate for lithographic printing plate obtained thereby and lithographic printing plate support

Growing community of inventors

Shizuoka, Japan

Hirokazu Sawada