专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明专利

JP2001131452A INK JET RECORDING METHOD 失效
公开(公告)号：JP2001131452A
公开(公告)日：2001-05-15
申请号：JP31453199
申请日：1999-11-05
申请人： HITACHI KOKI KK
发明人： OUCHI AKIYOSHI , MAEKAWA TSUTOMU , TSUNODA ATSUSHI
IPC分类号： B41J2/01 , B41M5/00 , C09D11/00 , C09D11/322 , C09D11/38
摘要： PROBLEM TO BE SOLVED: To provide an ink composition that is used for an ink jet recording system and improved in high speed and high reliability printing characteristics and high weatherability. SOLUTION: In an ink jet printer having curing characteristics by irradiating light such as UV rays or electron rays, a recording condition or an ink composition having the peak of absorbance at 810±5 cm-1 in the infrared spectrum being not more than 20% of that of before irradiation is used. One of the ink composition comprises urethane acrylate and 1-20 wt% pigment as a colorant.

22. 发明专利

JPH11139016A SOLID INK PRINTING ORIGINAL PLATE, AND ITS MANUFACTURE 失效
公开(公告)号：JPH11139016A
公开(公告)日：1999-05-25
申请号：JP31312397
申请日：1997-11-14
申请人： HITACHI KOKI KK
发明人： TSUNODA ATSUSHI , SAKATA MASATOSHI , SHOJI YUTAKA , SUEMATSU SHIGENORI
IPC分类号： B41C1/10 , B41C1/14 , B41N1/12 , C09D11/12
摘要： PROBLEM TO BE SOLVED: To increase the adhesion between an ink dot and an original plate, and ensure the mechanical strength by a method wherein a solid printing original plate manufactured by melting a solid ink which is solid at a room temperature, and jetting it, the ink dot height of the solid ink after being solidified on a base body, and the aspect ratio are set in specified ranges. SOLUTION: An image is formed on an intermediate medium by melting and jetting a solid ink, and the image is transferred from the intermediate medium to a base body, and a printing original plate is manufactured, and in this case, the ink height of the solid ink after being solidified on the base body is set to be 5 μm or higher, and the aspect ratio (the ratio of ink height/ ink clot short axis diameter) is set to be in a range of 0.5-0.05. Also, preferably, the ink dot after being solidified is made a shape wherein the ratio for the long axis/short axis (the in-surface aspect ratio) becomes 1.5 or lower. In addition, the ink dot is formed in such a manner that the maximum short axis diameter of the ink dot after solidification may become 10 μm or higher, and the contact angle of the ink dot to the base body may become 20 deg. or higher, and by these, the service life of the printing original plate is improved.

23. 发明专利

JPH11116865A HOT MELT TYPE INK COMPOSITION 失效
公开(公告)号：JPH11116865A
公开(公告)日：1999-04-27
申请号：JP28719497
申请日：1997-10-20
申请人： HITACHI KOKI KK
发明人： OUCHI AKIYOSHI , MAEKAWA TSUTOMU , TSUNODA ATSUSHI
IPC分类号： C09D11/00 , C09D11/322 , C09D11/326 , C09D11/328 , C09D11/34 , C09D11/38
摘要： PROBLEM TO BE SOLVED: To obtain the subject composition excellent in a printing quality, good in a record-retaining performance, excellent in metal corrosion prevention and useful for an ink jet printing method by including an azine-based coloring agent and a phosphorous compound for preventing metal corrosion. SOLUTION: This ink composition for an ink jet printing method comprising heating an ink solid at room temperature and subsequently jetting the melted ink on a recording medium to form recording dots contains (A) an azine-based coloring agent (preferably a nigrosine dye) and (B) a metal corrosion-preventing phosphorous compound (e.g. triisodecyl phosphite). The component A preferably contains in an amount of 0.5-5 wt.%, and the component B preferably contains in an amount of >=3 wt.%, especially 0.05-1 wt.%. Carnauba wax is preferably added to the vehicle of the objective composition. A vegetable wax, a higher fatty acid or the like is preferably further added in addition to the carnauba wax. The melt viscosity of the ink on printing is preferably controlled to 5-15 mPa.s, and the viscosity of the ink at room temperature is also preferably controlled to 10,000 mPa.s.

24. 发明专利

JPH11100537A HOT MELT INK COMPOSITION FOR INK JET 失效
公开(公告)号：JPH11100537A
公开(公告)日：1999-04-13
申请号：JP18386198
申请日：1998-06-30
申请人： HITACHI KOKI KK
发明人： OUCHI AKIYOSHI , MAEKAWA TSUTOMU , TSUNODA ATSUSHI
IPC分类号： C09D11/00 , C09D11/322 , C09D11/34
摘要： PROBLEM TO BE SOLVED: To obtain an ink composition having such excellent flow stability and low viscosity as to permit ink drops to be injected from fine nozzles by mixing a pigment with an alcohol-type wax having a hydroxyl value in a specified range to form a composition showing a melt viscosity in a specified range at the time of use. SOLUTION: An alcohol type wax having a hydroxyl value of 20-150 is used. The melt viscosity at the time of use is 5-30 mPa.s. The alcohol type wax is selected from among saturated linear alcohol-based alcohol type waxes and alcohol type waxes prepared by the oxidation of a starting material such as a paraffin wax, microcrystalline wax or petrolatum. The alcohol type wax is particularly desirably a 25-55C saturated linear alcohol and is desirably contained in an amount of at least 20 wt.% based on the composition.

25. 发明专利

JPH10310728A INK COMPOSITION FOR INK-JET AND ITS PRODUCTION 失效
公开(公告)号：JPH10310728A
公开(公告)日：1998-11-24
申请号：JP11960697
申请日：1997-05-09
申请人： HITACHI KOKI KK
发明人： OUCHI AKIYOSHI , MAEKAWA TSUTOMU , TSUNODA ATSUSHI
IPC分类号： C09D11/00 , C09D11/322 , C09D11/328 , C09D11/34 , C09D11/38
摘要： PROBLEM TO BE SOLVED: To obtain the subject composition excellent in adhesivity and weatherability, by including a polyamide from which a component meltable in an alkyl alcohol is removed. SOLUTION: This composition is obtained by adding a polyamide (e.g. dimer acid polyamide) from which a component (e.g. an analog compound having a molecular weight smaller than that of the main body of the polyamide) meltable in an alkyl alcohol [e.g. isopropanol (IPA)] to an amide group-containing vehicle [e.g. fatty acid amide (e.g. oleic acid amide) or a fatty acid ester (e.g. stearic acid monoglyceride)]. For example, the removal of a low molecular- weight component liable to cause a reaction to light and heat is recognized after washing by the result of GPC using a low molecular column before and after washing with IPA of DPX335-10. The amount of the polyamide added is preferably 10-40 wt.%.

26. 发明专利

JPH0971743A INK COMPOSITION FOR INK JET AND RECORDING METHOD THEREWITH 失效
公开(公告)号：JPH0971743A
公开(公告)日：1997-03-18
申请号：JP23093495
申请日：1995-09-08
申请人： HITACHI KOKI KK
发明人： SAGAWA AKIYOSHI , TSUNODA ATSUSHI , MAEKAWA TSUTOMU
IPC分类号： B41M5/00 , C09D11/00 , C09D11/02
摘要： PROBLEM TO BE SOLVED: To obtain a hot-melt ink compsn. for ink jet which gives a high-quality image excellent in adhesion to a recording medium. SOLUTION: This compsn., capable of forming recording dots when thermally liquefied and jetted onto a recording medium, at least contains 30-70wt.% fatty acid ester having an 18-36C alkyl group, 10-50wt.% dimer acid polyamide, and 0.5-5wt.% colorant. Recording dots formed from the compsn. on a recording medium are heated at 30-60 deg.C.

27. 发明专利

JP2000248219A STEALTH TYPE INK COMPOSITION AND RECORDING USING THE SAME 失效
公开(公告)号：JP2000248219A
公开(公告)日：2000-09-12
申请号：JP5665399
申请日：1999-03-04
申请人： HITACHI KOKI KK
发明人： MAEKAWA TSUTOMU , OUCHI AKIYOSHI , TSUNODA ATSUSHI
IPC分类号： B41J2/01 , B41M5/00 , C09D5/22 , C09D7/12 , C09D11/00 , C09D11/34 , C09D11/38
摘要： PROBLEM TO BE SOLVED: To obtain a stealth type ink composition which does not limit a recording medium, enables high speed recordings, is mild for environments, and can solve troubles, such as insufficient adhesivity to recording media, low recording rates, and insufficient safety, in the cases of liquid ink jet recordings. SOLUTION: This hot melt type ink composition is used by thermally liquidizing the ink composition which is solid at room temperature, and then imparting any jet energy to the liquidized ink composition, thus allowing ink drops to jet on a recording medium to form recording drops. Therein, the ink composition contains a luminous substance which does not exhibit remarkable absorption in the visible light region but emits visible light, when irradiated with UV light, and uses an ink vehicle which does substantially not have an absorption peak in the range of 300-400 nm. The ink composition preferably contains one or more compounds selected from monoamides, ester amides and bisamides in an amount of >=50 wt.% based on the ink composition, and has a melting point of >=70 deg.C.

28. 发明专利

JP2000007968A HOT-MELT INK COMPOSITION FOR INK JET 失效
公开(公告)号：JP2000007968A
公开(公告)日：2000-01-11
申请号：JP18069998
申请日：1998-06-26
申请人： HITACHI KOKI KK
发明人： MAEKAWA TSUTOMU , OUCHI AKIYOSHI , TSUNODA ATSUSHI
IPC分类号： B41M5/00 , C09D11/00 , C09D11/34
摘要： PROBLEM TO BE SOLVED: To obtain a hot-melt ink composition having a low viscosity, not undergoing separation, and exhibiting improved flow stability when it in the form of ink drops is jetted from fine nozzles, which composition gives a print specified in the maximum saturation, a hue angle, and a color difference on a recording medium. SOLUTION: A cyan pigment belonging to Pigment Blue 15:4 in an amount of 0.5-5 wt.%, desirably, 0.7-2 wt.%, an alcohol type wax having a hydroxyl value of 20-150, and optionally, a surface-treating agent, a surfactant, a viscosity lowering agent, an antioxidant, an antideteriorant, a crosslinking accelerator, an ultraviolet absorber, a plasticizer, an antiseptic, a dispersant, a dye, or the like, are fed into a bead mill kept at a high temperature and kneaded at a revolution speed of 1,00 rpm or above, desirably, 2,000-4,000 rpm to obtain a room-temperature-solid hot-melt ink composition for ink jet which can give on a recording substrate a print having a maximum saturation (chromaticity) C* of 45 or above, a hue angle H0 of -120 to 90 deg.C and a color difference ΔE* of 3 or below after irradiation with xenon light at a light quantity of 0.35 W/m2 at a wavelength of 340 nm for 100 hr.

29. 发明专利

JPH1121485A HOT MELT TYPE INK COMPOSITION FOR INKJET 失效
公开(公告)号：JPH1121485A
公开(公告)日：1999-01-26
申请号：JP17978597
申请日：1997-07-04
申请人： HITACHI KOKI KK
发明人： OUCHI AKIYOSHI , MAEKAWA TSUTOMU , TSUNODA ATSUSHI
IPC分类号： C09D11/00 , C09D11/322 , C09D11/34
摘要： PROBLEM TO BE SOLVED: To obtain the subject composition enabling reconciliation of disperse stability and jetting characteristic and capable of being used for ink jet recording device by including a specific pigment and a fatty acid triglyceride at a specific ratio. SOLUTION: This composition is a hot-melt type ink composition for inkjet comprising (A) pigment exhibiting yellow, magenta, cyan or black and (B) >=10 wt.%, preferably >=40 wt.% fatty acid triglyceride (preferably comprising a monoacid group, especially stearic acid or preferably completely hydrogenated castor oil). Furthermore, the ink jet recording device jets ink droplets onto a recording medium and forms recording dots by liquefying an ink composition which is solid at a room temperature by heating and applying jet energy to liquefied ink composition. Thereby, it is made possible to perform reconciliation of disperse stability and jetting characteristics which become a problem when pigment is used as a coloring agent.

30. 发明专利

JPH0332785B2 失效
公开(公告)号：JPH0332785B2
公开(公告)日：1991-05-14
申请号：JP5714982
申请日：1982-04-05
申请人： HITACHI SEISAKUSHO KK , HITACHI KOKI KK
发明人： KONUMA SHIGEHARU , TAMAHASHI KUNIHIRO , HOSOYA AKIRA , TSUNODA ATSUSHI , MORI YASUKI , MORISHITA YASUSADA , HARUKI SHINICHI
IPC分类号： G03G5/00 , C22C21/00 , G03G5/06 , G03G5/08 , G03G5/10

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式