Canon Kabushiki Kaisha

Asahi Kasei Kabushiki Kaisha

Hiroki Akiyama

Katsuhisa Yamazaki

Daisuke Yoshiba

Shotaro Nomura

Koji Nishikawa

Shuntaro Watanabe

Hiroki Kagawa

Masami Fujimoto

Shuhei Moribe

Tatsuya Saeki

Kosuke Fukudome

Shohei Tsuda

Atsuhiko Ohmori

Takashi Matsui

Kazumichi Nakahama

Yusuke Shimizu

Yojiro Hotta

Yoshitaka Suzumura

Kouji Nishikawa

Hiroyuki Tomono

Yasuhiro Hashimoto

Yasuhito Tsubakimoto

Osamu Matsushita

Toshimitsu Takahashi

Yuujirou Nagashima

Takuya Mizuguchi

Tomoya Nagaoka

Takao Kawai

Toru Yada

Takumi Ishii

Yu Hanzawa

Akinao Nakamura

Shinji Miyamoto

The object of the present disclosure is to implement capturing of mist. One embodiment of the present invention is a printing apparatus including: a carriage, on which a print head that ejects a liquid is mounted, configured to reciprocate within a predetermined range in a second direction intersecting with a first direction; a partition member configured to partition an inside of the casing in the first direction into a first space in which the carriage reciprocates and a second space in which the carriage does not reciprocate; a first communication unit provided within the predetermined range in the second direction and configured to cause the first space and the second space to communicate with each other; and a second communication unit provided outside the first communication unit in the second direction and configured to cause the first space and the second space to communicate with each other.

Printing apparatus

A toner includes a toner particle containing a resin component including a crystalline resin and an amorphous resin. In a cross-sectional observation of the toner particle, a domain-matrix structure which comprises a matrix containing the crystalline resin and domains containing the amorphous resin is observed. The maximum endothermic peak temperature Tm of the toner determined by DSC is 50° C. to 80° C. When the storage elastic modulus of the toner at a temperature 5° C. lower than Tm is G'(−5) (Pa), and the storage elastic modulus of the toner at a temperature 5° C. higher than Tm is G′(+5) (Pa), G′(−5) and G′(+5) satisfy inequality (1), and when the maximum loss tangent of the toner in a temperature range of from 50° C. to 130° C. is tan δ (Max), tan δ (Max) satisfies inequality (2).

Toner and method for producing toner

Provided is a manufacturing method of a flexographic printing plate, including a development step of subjecting a plate surface of a flexographic printing original plate including at least a support, a photosensitive resin composition layer, and an infrared ablation layer sequentially stacked to brushing with a brush while supplying an organic solvent-based developer to the plate surface, wherein the organic solvent-based developer includes 0.1% by mass or more and 10.0% by mass or less of a polymer gel.

Manufacturing method of flexographic printing plate and printing method

A toner including toner particles having a resin component containing a crystalline resin and an amorphous resin, in which the resin component contains a tetrahydrofuran-insoluble component, and the content of the tetrahydrofuran-insoluble component with respect to the content of the resin component is 5.0% to 80.0% by mass, wherein a maximum endothermic peak temperature of the tetrahydrofuran-insoluble component is 55.0 to 80.0° C., and the amount of heat absorption in the maximum endothermic peak of the tetrahydrofuran-insoluble component is 10.0 to 80.0 J/g, and toner particles have a structure which comprises a matrix containing the crystalline resin and domains containing the amorphous resin.

A photosensitive resin structure for a flexographic printing plate, including: a support (a); a photosensitive resin composition layer (b) laminated on the support (a); and an infrared ray ablation layer (c) laminated on the photosensitive resin composition layer (b), wherein the infrared ray ablation layer (c) contains a resin having a predetermined constituent unit (c1).

Photosensitive resin structure for flexographic printing plate and method for producing flexographic printing plate

A toner is provided, which has a toner particle that contains a binder resin, and organosilicon polymer particle on a surface of the toner particle. A methanol concentration a (vol %) of the organosilicon polymer particle in a wettability test and a methanol concentration b (vol %) of the toner particle in a wettability test satisfy Expression (I) below:||&#x2264;25&#x2003;&#x2003;(I), and

Toner

A magnetic toner comprising a magnetic toner particle including a binder resin, a magnetic body and a crystalline polyester, wherein in cross-sectional observation of the magnetic toner particle using a transmission electron microscope, a variation coefficient CV3 of an occupied area ratio of the magnetic body when a cross section of the magnetic toner particle is divided by a square grid having a side of 0.8 &#x3bc;m is from 40.0% to 80.0%, and assuming that a storage elastic modulus at 40&#xb0; C. is taken as E'(40) [Pa] and a storage elastic modulus at 85&#xb0; C. is taken as E&#x2032;(85) [Pa], the storage elastic moduli being obtained in a powder dynamic viscoelasticity measurement of the magnetic toner, the following formulas (1) and (2) are satisfied.&#x2032;(85)&#x2264;2.0&#xd7;10&#x2003;&#x2003;(1)[&#x2032;(40)&#x2212;&#x2032;(85)]&#xd7;100/&#x2032;(40)&#x2265;70&#x2003;&#x2003;(2)

Magnetic toner

A toner comprising a resin that contains an amorphous segment and a crystalline segment as a binder resin, wherein a proportion of a tetrahydrofuran-insoluble matter of a resin component is from 40% by mass to 80% by mass; in differential scanning calorimeter measurement of the tetrahydrofuran-insoluble matter, where a temperature of a maximum endothermic peak is denoted by Tm [&#xb0; C.] and an endothermic quantity is denoted by H(I) [J/g], the following formulas (1) and (2) are satisfied:55.0&#x2264;&#x2264;80.0&#x2003;&#x2003;(1)10.0&#x2264;()&#x2264;80.0&#x2003;&#x2003;(2).

A toner including a toner particle containing a binder resin, wherein the binder resin contains a crystalline resin, and in viscoelasticity measurement of the toner with Tp being a peak temperature of an endothermic peak derived from the crystalline resin in DSC of the toner, given G'(Tp&#x2212;5, 0.01 Hz) as a storage modulus at a temperature of Tp&#x2212;5&#xb0; C. and a frequency of 0.01 Hz, G&#x2032;(Tp&#x2212;5, 10 Hz) as a storage modulus at a temperature of Tp&#x2212;5&#xb0; C. and a frequency of 10 Hz, and G&#x2032;(Tp&#x2212;30, 10 Hz) as a storage modulus at a temperature of Tp&#x2212;30&#xb0; C. and a frequency of 10 Hz, the following formulae are satisfied:&#x2032;(&#x2212;30,10 Hz)/&#x2032;(&#x2212;5,0.01 Hz)&#x2264;1.40&#x2032;(&#x2212;5,10 Hz)/&#x2032;(&#x2212;5,0.01 Hz)&#x2264;2.20.

A toner comprising a toner particle containing a binder resin, the storage elastic modulus Gt' (150) of the toner at 150&#xb0; C. is at least 1.0&#xd7;10Pa, the binder resin contains a polymer A having a first monomer unit derived from a first polymerizable monomer and a second monomer unit derived from a second polymerizable monomer different from the first polymerizable monomer, the first polymerizable monomer is selected from specific (meth)acrylic acid esters, the contents of the first monomer unit and second monomer unit in the polymer A are within specific ranges, and the SP values of the first monomer unit and second monomer unit are within specific ranges.

Toner and toner manufacturing method

Provided is a magnetic toner having a toner particle containing a binder resin and a magnetic body, wherein the binder resin contains a polymer A having a first monomer unit and a second monomer unit, the first polymerizable monomer is at least one selected from the group consisting of the (meth)acrylic acid esters having Calkyl groups, a content of the first monomer unit and a content of the second monomer unit based on the total moles of all monomer units in the polymer A are respectively 5.0 to 60.0 mol % and 20.0 to 95.0 mol %, and assuming that an SP value of the first monomer unit and the second monomer unit are taken as SP(J/cm)and SP(J/cm), respectively, 3.00&#x2264;(SP&#x2212;SP)&#x2264;25.00 is satisfied, and an oil absorption of the magnetic body is 5 to 40 ml/100 g.

Magnetic toner and method for manufacturing magnetic toner

A toner including a toner particle containing a polyester resin composition, wherein i) the polyester resin composition contains a specific aliphatic hydrocarbon and a polyester resin having at a terminal a structure derived from at least one of a specific alkyl monoalcohol and a specific alkyl monocarboxylic acid, and ii) the total content of the aliphatic hydrocarbon, the structure derived from the alkyl monoalcohol, and the structure derived from the alkyl monocarboxylic acid is 2.5 to 10.0% by mass, wherein, in the temperature-endothermic quantity curve of the polyester resin composition obtained by DSC, an endothermic peak is present in a specific temperature range and an endothermic quantity for this endothermic peak is 0.10 to 1.90 J/g.

Provided is an external additive having a resin particle containing a crystalline resin, and an inorganic fine particle containing a metal atom, the inorganic fine particle being embedded in the resin particle, wherein part of the inorganic fine particle being exposed on a surface of the resin particle, the maximum endothermic peak temperature of the external additive during a first temperature rise is from 50.0&#xb0; C. to 120&#xb0; C., the shape factor SF-2 of the external additive is from 110 to 150, and the external additive satisfies following formulae (1) and (2) below, in which Za (mass %) is the percentage content of a metal atom contained in the inorganic fine particle on the surface of the external additive in X-ray photoelectron spectroscopy, and Zb (mass %) is the percentage content of the metal atom in thermogravimetric analysis of the external additive,&#x2265;15&#x2003;&#x2003;(1), and&#x2265;0.7&#x2003;&#x2003;(2)

External additive, method for manufacturing external additive, and toner

An external toner additive having a resin fine particle containing a crystalline resin and an inorganic fine particle embedded in the resin fine particle, wherein part of the inorganic fine particle is exposed on the surface of the resin fine particle, and in differential scanning calorimetry of the external toner additive, the maximum endothermic peak temperature T1 (&#xb0; C.) during a first temperature increase and the maximum exothermic peak temperature T2 (&#xb0; C.) during a first temperature decrease satisfy the formulae (1) to (3) below, with measurement performed between &#x2212;40&#xb0; C. and 150&#xb0; C. at a rate of increase of 10&#xb0; C./min during the first temperature increase and between 150&#xb0; C. and &#x2212;40&#xb0; C. at a rate of decrease in temperature of 10&#xb0; C./min during the first temperature decrease:1-2&#x2264;40.0&#x2003;&#x2003;(1)50.0&#x2264;1&#x2264;120.0&#x2003;&#x2003;(2)10.0&#x2264;2&#x2264;80.0&#x2003;&#x2003;(3).

External toner additive, method for producing external toner additive, and toner

A toner having excellent development performance, low-temperature fixation, and high-temperature storage stability is provided. An external additive contained in this toner is an organic-inorganic composite fine particle containing an inorganic fine particle embedded in a resin fine particle. The resin fine particle is made from a resin having a melting point of 60&#xb0; C. or more and 150&#xb0; C. or less.

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Toride, Japan

Hiroki Akiyama