Brother Kogyo Kabushiki-kaisha

Brother Kogyo Kabuhsiki Kaisha

Noriaki Satoh

Junichiro Sugimoto

Ryuji Kato

Ayako Ohishi

Kazuma Goto

Akihiko Taniguchi

Masaya Fujioka

Masashi Tsuda

Shunichi Higashiyama

Haruki Matsumoto

Yoshikatsu Suito

Mitsuru Ohta

Eiji Kawamura

Naomichi Kobayashi

Satoshi Okuda

Tatsunosuke Hoshi

Kenjiro Imai

Hitomi Sadohara

Takahiro Norimatsu

Satoshi Tanabe

Mayuko Umemura

Chisato Hayashi

A thermal transfer ink ribbon includes a backcoat layer, a ribbon base layer formed on the backcoat layer, a release layer formed on the ribbon base layer and containing resin and wax, an ink layer formed on the release layer and containing a first resin and a second resin, an aluminum layer formed on the ink layer, and an adhesive layer formed on the aluminum layer and containing resin and wax. The first resin is transparent or translucent and contains at least one of polyester resin, styrene-acrylic resin, and polyethylene resin. The second resin is transparent or translucent and contains at least one of polyurethane resin, polypropylene resin, acrylic resin, and methacrylic resin.

Thermal transfer ink ribbon for cartridge and printing apparatus

A liquid discharge recording apparatus includes: a liquid containing first glycol ether; a liquid discharge head which discharges the liquid; an absorber which absorbs the liquid discharged from the liquid discharge head; and second glycol ether which is contained in the absorber and of which vapor pressure is lower than that of the first glycol ether.

Liquid discharge recording apparatus and method for recovering liquid

A liquid discharge recording apparatus includes: a liquid; a liquid discharge head configured to discharge the liquid; an absorber configured to absorb the liquid discharged from the liquid discharge head; and unsaturated fatty acid of which specific gravity is smaller than that of the liquid and which is contained in the absorber.

A liquid discharge recording apparatus includes: a first liquid containing trimethylolpropane; a liquid discharge head configured to discharge the first liquid; a second liquid containing a solvent of which freezing point is less than 20 degrees Celsius and of which specific gravity is not more than 1.12; and an absorber which is configured to contain the second liquid and which is configured to absorb the first liquid exited from the liquid discharge head, wherein a blending amount (% by weight) of the solvent in the second liquid is not less than a blending amount (% by weight) of the trimethylolpropane in the first liquid.

A liquid discharge recording apparatus includes: a first liquid containing a diol represented by the following formula (1):HOCHOH&#x2003;&#x2003;(1)wherein in the formula (1), 'n' represents an arbitrary integer; a liquid discharge head which discharges the first liquid; a second liquid containing a non-volatile humectant and a non-volatile 1,2-alkylenediol; and an absorber which contains the second liquid and which absorbs the first liquid exited from the liquid discharge head, wherein not less than 20% by weight to not more than 50% by weight of the non-volatile humectant is contained in the second liquid; not less than 2% by weight to not more than 10% by weight of the non-volatile 1,2-alkylenediol is contained in the second liquid; and a ratio of a blending amount (% by weight) of the non-volatile 1,2-alkylenediol in the second liquid to a blending amount (% by weight) of the diol represented by the formula (1) in the first liquid is not less than &#xbc;.

A liquid discharge recording apparatus includes: a first liquid containing 2-pyrrolidone; a liquid discharge head configured to discharge the first liquid; a second liquid containing a solvent of which freezing point is less than 20 degrees Celsius and of which specific gravity is less than 1.12 g/cm; and an absorber which contains the second liquid and which is configured to absorb the first liquid exited from the liquid discharge head.

An ink-jet recording apparatus performing recording on a recording medium includes: a water-based yellow ink containing a yellow dye, a water-based magenta ink containing a magenta dye and a water-based cyan ink containing a cyan dye of which hue angles &#x2220;H&#xb0; defined in a CIELAB color space are within the predetermined ranges; an ink-jet head configured to discharge the water-based yellow, magenta and cyan inks; and a controller configured to control the ink-jet head so as to satisfy the following conditions (A) and (B) to thereby form a composite black on the recording medium: (A) 0.66&#x2266;C/(Y+M) and (B) 530&#x2266;Y+M+C&#x2266;600, wherein in the conditions (A) and (B): Y, M and C are drop amounts (ng) of the yellow dye, the magenta dye and the cyan dye dropped in a 25.4 mm&#xd7;25.4 mm area of the recording medium, respectively.

Ink-jet recording apparatus, ink-jet recording method, recorded matter and composite black

A liquid discharge recording apparatus includes a first liquid containing first 1,2-alkanediol; a liquid discharge head configured to discharge the first liquid; a second liquid containing second 1,2-alkanediol of which vapor pressure is lower than that of the first 1,2-alkanediol; and an absorber which contains the second liquid and which is configured to absorb the first liquid exited from the liquid discharge head.

Disclosed is a water-based ink for ink jet recording, including: a colorant; water; and tetraethylene glycol monobutyl ether and pentaethylene glycol monobutyl ether, wherein: tetraethylene glycol monobutyl ether and pentaethylene glycol monobutyl ether are contained by 1% by weight to 10% by weight in total in the water-based ink for ink jet recording; and a weight ratio (X:Y) of tetraethylene glycol monobutyl ether (X) to pentaethylene glycol monobutyl ether (Y) is 50:50 to 90:10.

Water-based ink for ink-jet recording, ink cartridge, water-based ink set for ink-jet recording, ink-jet recording method, and ink-jet recording apparatus

Provided is a treatment liquid used for ink-jet recording including polyallylamine, water, and at least one acid selected from the group consisting of amidosulfonic acid, and itaconic acid.

Treatment liquid for ink-jet recording, ink set, and ink-jet recording method

A treatment liquid for ink jet recording, containing a polyvalent metal ion and water. A dissolved carbon dioxide concentration in the treatment liquid is 4 mg/l or lower.

Treatment liquid for ink jet recording

An ink-jet recording apparatus includes a rubber member in an ink flow passage. The rubber member is made of a rubber composition including a rubber base polymer selected from ethylene-propylene diene rubber polymer and isobutylene-isoprene rubber polymer, and at least one trapping agent selected from calcium carbonate, silicon dioxide, talc, and clay. The trapping agent is effective for absorb-trapping various types of additives that may be present in the rubber member. The additives in the rubber are thereby held in the rubber structure and prevented from being eluted into the water-based ink or the preservative solution, which can lead to clogging of ink nozzles and the like.

Ink-jet recording apparatus

In an ink-jet recording apparatus, insoluble materials originating from rubber members employed in an ink passage are prevented from precipitating into a preservation solution or a water-based ink filled into the ink passage. The ink-jet recording apparatus in which the preservation solution or a water-based ink is filled into the ink passage, is configured such that a rubber member employed in the ink passage is formed of a rubber not containing a lubricant.

The ink-jet recording apparatus has an ink passage into which a water based ink or a preservation solution is filled. The ink passage employs a rubber member formed from a rubber which is formed of a butyl rubber polymer, a rubber polymer vulcanizable with an organic peroxide, and an organic peroxide. The water-based ink has a dynamic surface tension at a lifetime of 100 ms of about 35 mN/m to about 45 mN/m as measured by means of a maximum bubble pressure method at a measurement temperature of 25&#xb0; C. The preservation solution has a dynamic surface tension at a lifetime of 100 ms of about 30 mN/m to about 35 mN/m as measured by means of the maximum bubble pressure method at a measurement temperature of 25&#xb0; C.

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Nagoya, Japan

Noriaki Satoh