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    • 3. 发明专利
    • インクジェット用インク、インクカートリッジ、インクジェット記録装置及びインク記録物
    • 喷墨墨盒,墨盒,喷墨记录装置和墨盒记录事项
    • JP2015042732A
    • 2015-03-05
    • JP2014107028
    • 2014-05-23
    • 株式会社リコーRicoh Co Ltd
    • FUJII HIDETOSHIGOTO HIROSHI
    • C09D11/38B41J2/01B41M5/00
    • C09D11/322B41M5/50C09D11/324C09D11/36C09D11/38Y10T428/24802
    • 【課題】普通紙に印字した際に、インクの再転写を防止し、かつ、休止後のヘッドの信頼性や保存性に優れるインク等の提供。【解決手段】少なくとも水、水溶性有機物、着色剤を含有し、前記水溶性有機物が、次の要件を満足するインクジェット用インク。(A)水溶性有機物をインク全体の30〜50質量%含有する。(B)水溶性有機物として、3−メトキシ−1−ブタノールを含有する。(C)水溶性有機物として、1,3−ブタンジオール、3−メチル−1,3−ブタンジオール、1,2−ブタンジオール、2,3−ブタンジオール、1,2−ペンタンジオール、3−メチル−3−ヒドロキシメチルオキセタン、1,2−プロパンジオール、1,3−プロパンジオールから選ばれた少なくとも1種をインク全体の1質量%以上含有する。【選択図】なし
    • 要解决的问题:提供一种油墨等,其防止在普通纸上打印时油墨的再转印,并且在操作悬浮液之后提供喷墨头的优异的可靠性和储存性。解决方案:提供一种喷墨油墨,包括: 最少水,水溶性有机物和着色剂,其中水溶性有机物质满足以下要求。 (A)水溶性有机物质占全部油墨的30〜50质量%。 (B)油墨含有作为水溶性有机物质的3-甲氧基-1-丁醇。 (C)油墨含有选自1,3-丁二醇,3-甲基-1,3-丁二醇,1,2-丁二醇,2,3-丁二醇,1,2-戊二醇中的至少一种化合物 ,3-甲基-3-羟甲基氧杂环丁烷,1,2-丙二醇和1,3-丙二醇,1质量%以上的全部油墨作为水溶性有机物质。
    • 4. 发明专利
    • Image formation method, inkjet recording ink, inkjet recording device, and ink-recorded matter
    • 图像形成方法,喷墨记录墨水,喷墨记录装置和记录记录
    • JP2014173079A
    • 2014-09-22
    • JP2013049967
    • 2013-03-13
    • Ricoh Co Ltd株式会社リコー
    • FUJII HIDETOSHIGOTO HIROSHIYOKOHAMA YUKI
    • C09D11/00B41J2/01B41M5/00
    • PROBLEM TO BE SOLVED: To provide a recording ink capable, when printed on a water-absorbent substrate (medium) such as a plain paper, etc., of preventing curling and of recording high-quality images; an ink cartridge; an inkjet recording method; an inkjet recording device; and an ink-recorded matter.SOLUTION: The provided image formation method forms an image by discharging an inkjet ink containing at least water, a dispersion medium consists of two or more types of organic solvents, and a coloring material to a recording medium from a recording head. In the image formation method, the dispersion medium of the ink generates a phase change depending on the water content, and the image is formed by using the ink in which the difference between the water content A of the dispersion medium phase of the ink and the water content B in which the dispersion medium is phase-separated is 10 wt.% or less at 25°C.
    • 要解决的问题:提供一种能够在印刷在诸如普通纸等的吸水性基材(介质)上时防止卷曲并记录高质量图像的记录油墨; 墨盒 喷墨记录方法; 喷墨记录装置; 和油墨记录物。解决方案:提供的图像形成方法通过将至少含有水的喷墨油墨,由两种或更多种类型的有机溶剂组成的分散介质和着色材料从一种 录音头。 在图像形成方法中,油墨的分散介质根据含水量产生相变,并且通过使用油墨形成图像,其中油墨的分散介质相的水含量A与 分散介质相分离的水分B在25℃下为10重量%以下。
    • 5. 发明专利
    • Inkjet recording method
    • 喷墨记录方法
    • JP2014094998A
    • 2014-05-22
    • JP2012245817
    • 2012-11-07
    • Ricoh Co Ltd株式会社リコー
    • FUJII ICHIROGOTO HIROSHINAGAI KIYOFUMIFUJII HIDETOSHIAKIYAMA KOTA
    • C09D11/00B41J2/01B41M5/00
    • PROBLEM TO BE SOLVED: To provide an inkjet recording method capable of reducing a curl amount immediately after printing even on plain paper having different paper-making conditions or plan paper having same brand but a variation with paper-making.SOLUTION: There is provided a method of recording on recording media by using an ink for inkjet recording containing water, water-soluble organic solvent, surfactant and coloring agent, the recording media are plain paper, the water-soluble organic solvent contains at least one kind of each compound of (A) to (C). (A) Polyalcohol having equilibrium moisture amount at temperature of 23°C and humidity of 80% of 30 mass% or more. (B) An amide compound represented by the general formula (1). (C) Any compound represented by the general formulae (2) to (4) or a compound of the formula (5).
    • 要解决的问题:提供一种喷墨记录方法,即使在具有不同造纸条件的普通纸或具有相同品牌但具有造纸的变化的平面纸上,即使在打印后立即减少卷曲量。解决方案:提供一种 通过使用含有水,水溶性有机溶剂,表面活性剂和着色剂的喷墨记录用油墨在记录介质上进行记录的方法,记录介质为普通纸,水溶性有机溶剂含有至少一种各自的( A)至(C)。 (A)在温度23℃,湿度80%以上30质量%以上的平衡水分量的多元醇。 (B)由通式(1)表示的酰胺化合物。 (C)由通式(2)〜(4)表示的化合物或式(5)的化合物。
    • 6. 发明专利
    • Image forming method
    • 图像形成方法
    • JP2014073672A
    • 2014-04-24
    • JP2012269811
    • 2012-12-10
    • Ricoh Co Ltd株式会社リコー
    • NAGASHIMA HIDEFUMIGOTO HIROSHI
    • B41M5/00B41J2/01B41M5/50B41M5/52C09D11/00
    • PROBLEM TO BE SOLVED: To provide an image forming method using ink for inkjet printing, with which an image having high image density and high glossiness is obtained on a recording medium having low liquid absorptivity, with which image fixability is improved, and with which feathering and color bleeding can be reduced.SOLUTION: An image forming method has: a pretreatment step to make a pretreatment liquid adhere to a recording medium; an image forming step to form an image on a face with the pretreatment liquid made to adhere thereto by making ink for inkjet printing adhere thereto; and a posttreatment step to form a protective layer on a face with the ink for inkjet printing made to adhere thereto by making a posttreatment liquid adhere thereto. In the image forming method, a transition amount of pure water to a coated layer of the recording medium measured with a dynamic scanning liquid absorbing meter is 1-10 mL/mwith a contact period of 100 ms, and at least one of the pretreatment liquid and the posttreatment liquid contains water and an aqueous resin and further contains one of colloidal silica, barium sulfate, and titanium oxide.
    • 要解决的问题:提供一种使用油墨进行喷墨印刷的图像形成方法,在具有低液体吸收性的记录介质上获得具有高图像密度和高光泽度的图像,从而改善了图像定影性,并且利用该图像形成方法 并且可以降低颜色渗色。解决方案:成像方法具有:使预处理液体附着在记录介质上的预处理步骤; 图像形成步骤,通过使用于喷墨印刷的油墨粘附在其上,用与其粘合的预处理液体在表面上形成图像; 以及后处理步骤,通过使后处理液体粘附在其上,通过喷墨印刷用油墨在其表面上形成保护层以使其粘附。 在图像形成方法中,用动态扫描液体吸收仪测量的记录介质的涂布层的纯水的过渡量为1-10mL / m,接触时间为100ms,并且至少一种预处理液 并且后处理液含有水和水性树脂,并且还含有胶体二氧化硅,硫酸钡和氧化钛中的一种。
    • 7. 发明专利
    • Pretreatment liquid for inkjet printing, image-forming method and inkjet recording apparatus
    • 喷墨打印,图像形成方法和喷墨记录装置的预处理液
    • JP2014058054A
    • 2014-04-03
    • JP2012202882
    • 2012-09-14
    • Ricoh Co Ltd株式会社リコー
    • YOKOHAMA YUKIKOJIMA MARIKOGOTO HIROSHINAGAI KIYOFUMI
    • B41M5/00
    • PROBLEM TO BE SOLVED: To provide a pretreatment liquid for inkjet printing, which adequately reduces character blurring when a character is printed on a recording medium by using an ink for inkjet recording, and has adequate drying properties.SOLUTION: The pretreatment liquid for inkjet printing contains a water-soluble aliphatic organic acid, a water-soluble organic monoamine compound, a near infrared ray absorbent having a maximum absorption wavelength at 800-1,200 nm, a water-soluble organic solvent and water. The pretreatment liquid for inkjet printing contains 1.0 mol or more of the water-soluble organic monoamine compound with respect to 1 mol of an acid radical contained in the water-soluble aliphatic organic acid.
    • 要解决的问题:提供一种用于喷墨印刷的预处理液体,其通过使用用于喷墨记录的油墨将字符印刷在记录介质上时可以充分减少字符模糊,并且具有足够的干燥性能。解决方案:喷墨印刷用预处理液 含有水溶性脂肪族有机酸,水溶性有机单胺化合物,800〜1200nm的最大吸收波长的近红外线吸收剂,水溶性有机溶剂和水。 喷墨印刷用预处理液相对于水溶性脂肪族有机酸中含有的1摩尔酸基含有1.0摩尔以上的水溶性有机单胺化合物。
    • 9. 发明专利
    • Ink for ink jet, ink cartridge, ink jet recording apparatus, and recorded matter
    • 墨水喷嘴,墨盒,喷墨记录设备和记录事项
    • JP2014051625A
    • 2014-03-20
    • JP2012197938
    • 2012-09-07
    • Ricoh Co Ltd株式会社リコー
    • FUJII HIDETOSHIGOTO HIROSHI
    • C09D11/00B41J2/01B41M5/00
    • C09D11/38B41J2/17503C09D11/322
    • PROBLEM TO BE SOLVED: To provide an ink for ink jet, capable of inhibiting curl and cockling when printed on plain paper, and capable of high quality image recording.SOLUTION: An ink for ink jet contains at least water, a water-soluble organic product, and a coloring agent and the water-soluble organic product satisfies following requirement (A) to (C). (A) Containing 40 to 50 mass% based on the total ink of a water-soluble organic product. (B) Containing 5 to 35 mass% based on the total ink of at least one kind selected from 1,3-dimethyl-2-imidazolidinone, β-methoxy-N,N-dimethylpropionamide, and 2-pyrrolidone as the water-soluble organic product. (C) Containing 10 to 40 mass% based on the total ink of a compound of the general formula (1) as the water-soluble organic product. In general formula (1), R is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms and n is an integer of 2 to 7.
    • 要解决的问题:提供一种用于喷墨的墨水,能够在普通纸上印刷时抑制卷曲和起皱,并且能够进行高质量的图像记录。解决方案:用于喷墨的墨水至少含有水,水溶性有机物 产品和着色剂和水溶性有机产品满足以下要求(A)至(C)。 (A)基于水溶性有机产物的总墨水含有40〜50质量%。 (B)含有选自1,3-二甲基-2-咪唑啉酮,叔丁基 - 甲氧基-N,N-二甲基丙酰胺和2-吡咯烷酮中的至少一种的总油墨为5〜35质量% 可溶性有机产物。 (C)作为水溶性有机物,以通式(1)的化合物的总墨水为基准,含有10〜40质量%。 通式(1)中,R为氢原子或碳原子数1〜3的烷基,n为2〜7的整数。
    • 10. 发明专利
    • Image forming method and recorded material
    • 图像形成方法和记录材料
    • JP2014015008A
    • 2014-01-30
    • JP2012155193
    • 2012-07-11
    • Ricoh Co Ltd株式会社リコー
    • AOAI SHOSUKEMAEKAWA TSUTOMUNANBA MICHIHIKOSENOO SHINYAGOTO HIROSHIGOTO AKIHIKO
    • B41M5/00B41J2/01C09D11/00
    • B41M5/0017B41J11/0015B41M5/0023C09D11/322C09D11/54Y10T428/24901
    • PROBLEM TO BE SOLVED: To provide an image forming method by which reduction in an aggregation ability of an ink pigment is suppressed during recording by an inkjet process and good image qualities without bleeding can be obtained.SOLUTION: The image forming method includes: a pretreatment liquid applying step of applying a pretreatment liquid to a recording material having a coated layer on at least one surface of a support, the liquid applied to the surface where the coated layer is present; and an image forming step of forming an image by discharging a water-base ink by an inkjet process to the recording medium after the pretreatment liquid is applied. The method also includes a drying step between the pretreatment liquid applying step and the image forming step. The pretreatment liquid is a pretreatment liquid containing at least a water-soluble cation polymer, an organic acid ammonium salt and water. The water-base ink is a water-base ink having dispersion of particles with negative charges containing a colorant.
    • 要解决的问题:提供一种图像形成方法,其通过喷墨处理在记录期间抑制了油墨颜料的聚集能力的降低,并且可以获得良好的图像质量而没有渗色。解决方案:图像形成方法包括:预处理 液体施加步骤,将预处理液体施加到在载体的至少一个表面上具有涂层的记录材料,所述液体施加到存在涂层的表面上; 以及图像形成步骤,通过在施加预处理液体之后,通过喷墨处理将水性墨水排出到记录介质上来形成图像。 该方法还包括在预处理液体施加步骤和图像形成步骤之间的干燥步骤。 预处理液是至少含有水溶性阳离子聚合物,有机酸铵盐和水的预处理液。 水性油墨是具有含有着色剂的负电荷的颗粒的分散体的水性油墨。