Canon Kabushiki Kaisha

Nippon Shokubai Co., Ltd.

Ikuo Nakazawa

Masayuki Ikegami

Koichi Sato

Sakae Suda

Keiichiro Tsubaki

Ryuji Higashi

Keiko Yamagishi

Shinichi Nakamura

Masahiro Terada

Shosei Mori

Koji Noguchi

Syuji Yamada

Akitoshi Yamada

Takao Takiguchi

Masahiko Kubota

Yukio Hanyu

Hiroshi Mizuno

Takeshi Togano

Takashi Iwaki

Masataka Yamashita

Masanobu Asaoka

Sadahito Aoshima

Yoko Yamada

Shinji Sugihara

Hiroyuki Ishinaga

Toshio Kashino

Yoshiyuki Imanaka

Shoji Koike

Kazuharu Katagiri

Teruo Ozaki

Akira Yamamoto

Takashi Moriyama

Kenji Takahashi

Kenji Shinjo

Nobuhiro Ito

Yasufumi Asao

Akira Kuriyama

Yumi Yanai

Taketoshi Okubo

Tomonari Horikiri

Atsuhito Yoshizawa

Yasuaki Takeda

Nobuhisa Tanahashi

Hidemasa Mizutani

Kenichi Iida

Hideaki Takao

Hiroyuki Nohira

Hirokatsu Miyata

Kohei Watanabe

Shigemoto Abe

Hiroaki Mihara

Takeshi Okada

Hideyuki Saito

Taro Endo

Tomoko Maruyama

Miki Ogawa

Rie Ueno

Naofumi Shimomura

Katsuhiro Hayashi

Hiroyuki Shimoyama

Yoko Kosaka

Yoshio Kinoshita

Ryota Takeuchi

Takayuki Okawa

Yasuhiro Matsuda

Ai Sakuma

Shokyoku Kanaoka

Tomohide Yoshida

Arihiro Kanazawa

Junko Morioka

An ultrafine bubble (UFB)-containing liquid manufacturing apparatus includes a liquid ejecting unit having a thermal energy generating element, a flow path for leading liquid to the thermal energy generating element, a driving unit configured to drive the thermal energy generating element, and an ejection opening. The UFB-containing liquid manufacturing apparatus also includes a collecting unit configured to collect liquid ejected from the ejection opening. The driving unit drives the thermal energy generating element to cause film boiling in liquid led to the flow path and causes liquid containing ultrafine bubbles generated by the film boiling to be ejected from the ejection opening.

Ultrafine bubble-containing liquid manufacturing apparatus and manufacturing method

Ultrafine bubbles with a diameter of less than 1.0 &#x3bc;m are generated in liquid by causing film boiling in liquid by means of a heater.

Ultrafine bubble generating method, ultrafine bubble-containing liquid manufacturing apparatus and manufacturing method, and ultrafine bubble-containing liquid

In order to efficiently produce a liquid containing ultrafine bubbles of a desired gas, an ultrafine bubble-containing liquid producing apparatus includes a gas dissolving unit that dissolves a predetermined gas into a liquid, and a UFB generating unit that generates ultrafine bubbles in the liquid in which the predetermined gas is dissolved. A CPU performs control under a first condition in a case of causing the gas dissolving unit to operate in a circulation route passing through the dissolving unit. The CPU performs control under a second condition different from the first condition in a case of causing the UFB generating unit to operate in a circulation route passing through the UFB generating unit.

Ultrafine bubble-containing liquid producing apparatus and ultrafine bubble-containing liquid producing method

An object of the present disclosure is to improve the generation efficiency of a UFB-contained liquid in a generation apparatus having a circulation mechanism. One embodiment of the present invention is an ultra fine bubble generation apparatus including: a first tank that stores a liquid; a generation unit configured to generate an ultra fine bubble in the liquid output from the first tank; a second tank that stores the liquid output from the generation unit; and a liquid passage that inputs again the liquid stored in the second tank to the first tank, and the ultra fine bubble generation apparatus includes a blocking configuration that blocks an ultra fine bubble included in the stored liquid from being input again to the first tank.

Ultra fine bubble generation apparatus

An ink jet ink including water, a pigment and a polymer. The pigment has a secondary amino group. The polymer contains a unit derived from a monomer having a ring structure containing a tertiary amino group.

Ink jet ink and ink jet recording method

An ink jet printing ink for use in an ink jet printing method. The ink is ejected from a print head by the action of thermal energy and includes water, a self-dispersing pigment, and at least two types of resin particles. One of the at least two types of resin particles (resin particle A) and another of the at least two types of resin particles (resin particle B) have an average particle size of 80 nm or more but 220 nm or less and an acid value of 25 mgKOH/g or more but 150 mgKOH/g or less. The resin particle A has a glass transition temperature of 25 degrees Celsius or less. The resin particle B has a glass transition temperature of 25 degrees Celsius or more. A difference in glass transition temperature between the resin particle A and the resin particle B is 10 degrees Celsius or more.

Ink jet printing ink

Aspects of the present invention provide an ink-jet recording method including the step of applying an ink to a recording medium by discharging the ink from a recording head by action of thermal energy and the step of fixing the ink to the recording medium by heating the ink applied to the recording medium. The ink contains water, a self-dispersing pigment, and resin particles. The resin particles have a glass transition temperature of not less than 25&#xb0; C., an average particle diameter of 70 nm or more and 220 nm or less, and an acid value of 25 mg KOH/g or more and 150 mg KOH/g or less.

Ink-jet recording method

The invention provides an ink jet ink including a coloring material, a polymer particle, a crosslinking agent and an aqueous medium. The polymer particle has a unit derived from a compound represented by the following general formula (1) and a glass transition temperature of 25&#xb0; C. or less. The crosslinking agent has a functional group capable of forming a crosslinked structure with a ketone group derived from the compound represented by the general formula (1) by a dehydration reaction. The mass ratio of a content (% by mass) of the coloring material based on the total mass of the ink to a content (% by mass) of the polymer particle based on the total mass of the ink is 0.2 times or more and 2.5 times or less. 

The invention provides an ink jet recording ink containing a self-dispersion pigment to a surface of which an anionic functional group represented by the following general formula (1) is bonded directly or through another atomic group, an ammonium salt of an organic carboxylic acid, water, and a water-soluble compound having a hydrophilicity-hydrophobicity coefficient of 0.26 or more as defined by the following equation (A), the ink having a surface tension of 34 mN/m or less, wherein Mand Mare, independently of each other, a hydrogen atom, alkali metal, ammonium or organic ammonium;Hydrophilicity-hydrophobicity coefficient=[(Water activity of a 20% aqueous solution)&#x2212;(Molar fraction of water in the 20% aqueous solution)]/[1&#x2212;(Molar fraction of water in the 20% aqueous solution)]&#x2003;&#x2003;(A).

Ink jet recording ink, ink jet image forming method and ink jet recording apparatus

A novel liquid composition set is provided for forming an image or pattern by functional substances such as a colorant without causing blurring. Each of the liquid compositions of the set includes a functional substance, an amphiphilic block copolyrner or graft copolymer having an organic acid group, and a liquid medium, wherein the organic acid groups of the copolymers are different in pKa, and the amphiphilic polymer contained in the first liquid composition becomes viscous by pH change on contact with the second liquid composition different in pH from the first liquid composition.

Liquid-composition set, and liquid-applying method and liquid-applying apparatus employing the set

Polyalkenyl ether is produced by polymerizing alkenyl ether represented by the following general formula (I):CHR&#x2550;CH(OR)&#x2003;&#x2003;(I)wherein Rrepresents a hydrogen atom or a methyl group, Rrepresents a monovalent organic group, and Rcontains a silicon atom or at least one atom selected from the group consisting of elements from group 15 to group 17, in the presence of a halide of an element other than Al, or an organometallic compound of an element other than Al, and a nonionic oxygen-containing or nonionic nitrogen-containing organic compound.

Process for producing polyalkenyl ether

A composition comprises a solvent, and an electroconductive substance and an amphiphilic block copolymers having a polyalkenyl ether repeating-unit structure, or a block copolymer enclosing an electroconductive substance. A black ink composition comprises a fine particulate metal having an average particle diameter of not more than 20 nm, an amphiphilic block copolymer, and a solvent. A method for forming an electroconductive pattern by applying the composition. A method for forming an electroconductive pattern by applying a composition comprises a block copolymer enclosing an electroconductive substance, system to form an electroconductive pattern on the substrate.

Image-forming method employing a composition

The present invention relates to a stimulus responsive composition, which includes a polymer complex that a polymer including repeated units of polyvinyl ether structure is chemically bonded to a functional substance, and a solvent. It is desirable that a solvent is water and that the polymer in the composition contains a polyvinyl ether structure. The present invention also relates to an ink composition including the above composition, an image forming method and image forming device using the above composition, and recording medium contains a stimulating material or composition which stimulates the above composition.

Ink composition containing a polymer complex, and an image formation method and equipment using the ink composition

The invention provides a block polymer compound enabling satisfactory dispersion of a colorant in a solvent, and an ink composition containing such block polymer compound. The block polymer compound of the invention is a block polymer compound having at least three block segments, comprising block segments A, B and C arranged in succession, wherein the block segment C is most solvent attractive while the block segment A is most solvent repulsive, and at least either one of the block segments includes an ionic group or an acidic group.

Block polymer compound, polymer composition containing the same, image forming method and image forming apparatus utilizing the same

An amphiphilic block copolymer having an ionic functional group, wherein the ratio (N10/N5) of a rotational viscosity (N10) of a 10% by mass solution of the copolymer in purified water to a rotational viscosity (N5) of a 5% by mass solution of the copolymer in purified water is 2.5 or lower.

Amphiphilic block copolymer, polymer-containing composition containing the same, and method and apparatus for applying liquid using the polymer-containing composition

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Zama, Japan

Ikuo Nakazawa