CN1701104A

CN1701104A - Recording liquid, cartridge for the liquid, device and method for discharging the liquid

Info

Publication number: CN1701104A
Application number: CN 200480000805
Authority: CN
Inventors: 福田敏生; 矢仓雄次; 中村正人
Original assignee: Sony Corp
Current assignee: Sony Corp
Priority date: 2003-05-29
Filing date: 2004-05-25
Publication date: 2005-11-23
Anticipated expiration: 2024-05-25
Also published as: CN100363441C

Abstract

Disclosed is an ink liquid used in a printer device of the ink jet system for recording an image or letters/ characters. A surfactant containing an organic compound represented by the following chemical formula 1: where m and n are integers not less than 1, is contained in an ink 2 to prevent blurring or bleeding from being produced at a point of deposition of an ink liquid droplet i.

Description

Recording liquid, fluid cartridge, liquid injection apparatus and liquid jet method

Technical field

The recording liquid (recording liquid) that the present invention relates to be used on carrier, writing down, within it hold recording liquid fluid cartridge (liquid cartridge) and by pressurizing member increase recording liquid pressure with the drop form from spraying the liquid injection apparatus and the liquid jet method (liquidemitting method) of opening part atomizing of liquids.

The application requires the right of priority of Japanese patent application 2003-152031 that submits in Japan on May 29th, 2003 and the Japanese patent application 2003-344969 that submitted on October 2nd, 2003, its full content at this by with reference to introducing.

Background technology

With spraying in the middle of the liquid injection apparatus of opening atomizing of liquids to the carrier, there is the print apparatus of the ink-jet systems that is used for document image or letters/symbols.The print apparatus of ink-jet systems helps low running cost, little plant bulk and forms the multi-color printing image.In the print apparatus of ink-jet systems,,, be fed to the black sap cavity chamber of a chip for example from ink cartridge as yellow, scarlet, mazarine or black ink as the printing ink of recording liquid.In this print apparatus, by pressurizing member, as be arranged in the indoor heat-resistant component of black sap cavity, the pressure of black sap cavity chamber is increased, and with small-sized ink jet opening, promptly so-called printing ink nozzle ejection.More particularly, be arranged in the indoor resistance heating element of black sap cavity at ink chamber's internal heating printing ink, generate air filled cavity in the printing ink on resistance heater, under the propulsive force that applies by air filled cavity with nozzle ejection printing ink, then ink deposition on as the recording sheet of carrier for print image or letters/symbols thereon.

For the printing ink that in the print apparatus of ink-jet systems, uses, use various dye substance by in solvent (it comprises for example organic solvent), disperseing to work as dyestuff, or tinting material, the solution that obtains as pigment.Require this printing ink to satisfy following condition:

1) in a single day deposit, it does not ooze out (bleed) on recording sheet, that is to say, it obtains high picture quality;

2) its deterioration not in standing storage that is to say, it has excellent standing storage;

3) after on being deposited on recording sheet, it does not cause colour-change because of light, heat or moisture, that is to say, it has high resistance;

4) for flying print, it has excellent rate response to driving frequency;

5) it is dry immediately after printing, and that is to say that it has the quick-drying energy; With

When 6) in print procedure or after printing interruption, beginning again, its nonchoking nozzle.

The technology that discloses in for example Japanese Laid-Open Patent Publication S59-93765 and S60-243175 is designed to satisfy these requirements.

Yet, under the present circumstances of prior art, being difficult to develop driving frequency is had the high printing ink of replying performance, the print speed with the increase of catching up with printer that is to say, for tackle the printing ink that the ink jet that shortens designs at interval from the printing ink nozzle.Need especially to reduce the print speed of ink viscosity with the increase of catching up with print apparatus.Yet,, be reduced in the stability of printing ink time for spraying ink jet from nozzle if reduce ink viscosity in this way non-requiredly.

In addition, in the print procedure on print apparatus, common paper, for example copier paper, bonding paper (bond paper sheets) or report mainly are used as recording paper with paper.In the case, the problem that may occur is, sedimentary printing ink oozes out or is not easy drying along the fiber of plain paper, and this is because the sizing agent that comprises in plain paper causes.

In order to address these problems, the pH that has proposed to set printing ink in open Nos.56-57862 of Japanese Patent or 55-29546 is to strong basicity or use a large amount of tensio-active agents.

Yet, utilizing the pH that sets printing ink under the situation of alkaline technology, the printing ink that is printed on the plain paper also becomes strong basicity, and the physicals that consequently contacts the object of marking ink changes.

The problem of using the technology of exhibiting high surface promoting agent to meet with is, the surface tension of printing ink descends, and tends to produce air simultaneously in the printing ink preparation process or in that black sap cavity is indoor, and so the air that generates is not easy to dissipate when froth breaking.Therefore, utilize conventional print apparatus, because under the situation that not have injection, cause hindering printing ink in large quantities at the air of the indoor generation of black sap cavity and flow out from hole, perhaps opposite, pore surface is all wetted, and the result suppresses the injection of printing ink.In addition, utilize this proposal at present, the danger of existence is, depends on the kind of employed plain paper, seriously occurs oozing out.In addition, utilize this proposal at present, may occur owing to cause ink temperature to surpass the cloud point (its cloud point 60 ℃ the order of magnitude) of the conventional tensio-active agent that uses at the moment of ink jet resistive heater heats printing ink.If printing ink is heated to above the cloud point of tensio-active agent, tensio-active agent then may occur and in printing ink, precipitate, its physicals is changed, high image quality is printed and is become impossible, perhaps can not tackle the injection interval that shortens.

In order to address the above problem, the tensio-active agent that is made of acetylenediol (acetylene glycol) technology as tensio-active agent has been proposed in for example Japanese Laid-Open Patent Publication 63-139964 or Japanese Patent 3262568 to use mainly.Because acetylenediol has the ad hoc structure of triple bond and hydroxyl on intramolecular adjacent carbons, thus its lathering property and ooze out low, and froth breaking and fixed performance excellence, ink jet stably simultaneously even in the flying print of letters/symbols.

Yet, the tensio-active agent of in Japanese Laid-Open Patent Publication 63-139964 or Japanese Patent 3262568, addressing that contains acetylenediol, cost is high, makes its application hinder the decline of printing ink production cost.On the other hand, the tensio-active agent that contains acetylenediol makes ink quality non-constant to the surface-active variation sensitivity of can not ignore from a production site to another production site.

The purpose of this invention is to provide novel recording liquid, utilize it can solve inherent problem in the routine techniques, the fluid cartridge that contains this recording liquid is provided and uses the recording liquid that is included in the fluid cartridge, can carry out liquid jet method and liquid injection apparatus that high image quality is printed.

Another purpose of the present invention provides cheap recording liquid, and it is to the wettability excellence of carrier, to bubble or ooze out only responsive on degree still less, and its injection interval of can do with high-quality printing and shortening.Another object of the present invention provides to use and comprise the fluid cartridge of recording liquid and the recording liquid that holds in this fluid cartridge, can carry out liquid jet method and liquid injection apparatus that high quality is printed.

Inventor of the present invention finds that by comprise tensio-active agent in recording liquid, described tensio-active agent itself contains the ethylene oxide adduct of 3-ethyl-3-methylol-enanthol again, substitutes acetylenediol, can address the above problem.Based on this discovery, inventor of the present invention has realized purpose of the present invention.

Therefore, the invention provides a kind of recording liquid that is deposited on as drop on the carrier that is used to print, it comprises dyestuff, disperse the solvent of this dyestuff and contain the tensio-active agent of the organic compound that following Chemical formula 1 represents:

Wherein m and n are not less than 1 integer.

The present invention also provides and is loaded on the liquid injection apparatus and as the fluid cartridge of the source of supply operation of recording liquid, described recording liquid is contained in the container for liquid; Under liquid injection apparatus with drop form injection record liquid, for deposition and record on carrier, wherein recording liquid contains dyestuff, disperses the solvent of this dyestuff and contains the tensio-active agent of the organic compound that following Chemical formula 1 represents:

Wherein m and n are not less than 1 integer.

The present invention also provides liquid injection apparatus, it comprises splashing device, described splashing device comprises the liquid chamber of store recording liquid, feeding unit to liquid chamber supply recording liquid, what provide in liquid chamber is one or more to spray through the recording liquid of the pressure exerting device pressurization injection opening to the major surfaces of carrier from each liquid chamber to the presser unit that is stored in the liquid chamber pressurization of record liquid with the drop state; Be connected on the splashing device and recording liquid is fed to the fluid cartridge on the feeding unit and controls the jetting controller that presser unit drives with the source of supply formal operations; This recording liquid contains dyestuff, disperse the solvent of this dyestuff and contain the tensio-active agent of the organic compound that following Chemical formula 1 represents:

Wherein m and n are not less than 1 integer.

The present invention also provides the method by the liquid injection apparatus atomizing of liquids, comprise splashing device, described splashing device comprises the liquid chamber of store recording liquid, feeding unit to liquid chamber supply recording liquid, what provide in liquid chamber is one or more to spray through the recording liquid of the pressure exerting device pressurization injection opening to the major surfaces of carrier from each liquid chamber to the presser unit that is stored in the liquid chamber pressurization of record liquid with the drop state; Be connected on the splashing device and recording liquid is fed to the fluid cartridge on the feeding unit and controls the jetting controller that presser unit drives with the source of supply formal operations; Wherein as recording liquid, use and contain dyestuff, disperse the solvent of this dyestuff and contain the liquid mixture of the tensio-active agent of the organic compound that following Chemical formula 1 represents:

Wherein m and n are not less than 1 integer.

Recording liquid of the present invention contains at least a tensio-active agent, and described tensio-active agent itself contains the organic compound of above-mentioned molecular formula 1 expression again.Specifically, by in recording liquid, comprising the recording liquid of at least a nonionogenic tenside of representing by above-mentioned Chemical formula 1, can be suppressed in the liquid chamber recording liquid and bubble and optimize the coating performance of recording liquid carrier.Therefore, bubble and optimize recording liquid the present invention according to wherein being suppressed at recording liquid in the liquid chamber the coating performance that for example sprays opening, recording liquid can spray from spray opening best, and when recording sheet is used as carrier, can suppress to be deposited on the recording liquid flushing on the recording sheet or ooze out, can print in high quality.In addition, even the interval of injection record liquid shortens from spray opening, also can be suppressed at the recording liquid excess foam formation in the liquid chamber.Because printing ink demonstrates best wettability with respect to spraying opening, thus recording liquid can be fed to liquid chamber best inner or be fed to the injection opening part, but so that injection record liquid, to tackle the print speed of increase.

In addition, utilize under the situation of recording liquid of the present invention, the order of magnitude of cloud point that contains the tensio-active agent of the organic compound shown in the Chemical formula 1 is 80 ℃, be higher than conventional tensio-active agent, therefore can be suppressed at the cloud point that recording liquid temperature on the presser unit prevents to surpass easily tensio-active agent, so that can prevent the characteristic change of recording liquid, making can not be from spraying the inconvenience of opening part liquid droplets.

The present invention also provides with the drop state and is deposited on thereon another recording liquid on the carrier of printing.This recording liquid contains dyestuff, disperse the solvent of this dyestuff and contain the tensio-active agent of the organic compound that following Chemical formula 1 represents:

Wherein m and n are not less than 1 integer, and the vapour pressure under 20 ℃ is not more than the glycol ether that 0.1mmHg and surface tension are not more than 35mN/m.

The present invention also provides and is loaded on the liquid injection apparatus and as another fluid cartridge of the source of supply operation of recording liquid, described recording liquid is contained in the container for liquid; Wherein liquid injection apparatus is with drop form injection record liquid, for deposition and record on carrier.This recording liquid contains dyestuff, disperse the solvent of this dyestuff and contain the tensio-active agent of the organic compound that following Chemical formula 1 represents:

The present invention also provides a kind of liquid injection apparatus (liquid emitting device), it comprises splashing device (emission means), described splashing device comprises the liquid chamber (liquidchamber) of store recording liquid, feeding unit (supply unit) to liquid chamber supply recording liquid, what provide in liquid chamber is one or more to spray through the recording liquid of the pressure exerting device pressurization injection opening (emission opening) to the major surfaces of carrier from each liquid chamber to the presser unit (pressurizing unit) that is stored in the liquid chamber pressurization of record liquid with the drop state; Be connected on the splashing device and recording liquid is fed to the fluid cartridge (liquidcartridge) on the feeding unit and controls the jetting controller (emission controllingmeans) that presser unit drives with the source of supply formal operations; This recording liquid contains dyestuff, disperse the solvent of this dyestuff and contain the tensio-active agent of the organic compound that following Chemical formula 1 represents:

The present invention also provides another to pass through the method for liquid injection apparatus atomizing of liquids, described liquid injection apparatus comprises splashing device, described splashing device comprises the liquid chamber of store recording liquid, feeding unit to liquid chamber supply recording liquid, what provide in liquid chamber is one or more to spray through the recording liquid of the pressure exerting device pressurization injection opening to the major surfaces of carrier from each liquid chamber to the presser unit that is stored in the liquid chamber pressurization of record liquid with the drop state; Be connected on the splashing device and recording liquid is fed to the fluid cartridge on the feeding unit and controls the jetting controller that presser unit drives with the source of supply formal operations; Wherein as recording liquid, use and contain dyestuff, disperse the solvent of this dyestuff and contain the tensio-active agent of the organic compound that following Chemical formula 1 represents:

Utilization contains other recording liquid of the present invention of tensio-active agent, itself contains the organic compound that above-mentioned Chemical formula 1 is represented again described tensio-active agent, specifically, nonionogenic tenside shown in the above-mentioned Chemical formula 1 can be suppressed at recording liquid in the liquid chamber and bubble and guarantee best coating performance to carrier.Therefore, under the situation of using recording liquid of the present invention, can be suppressed at the interior recording liquid foaming of liquid chamber of splashing device and guarantee that recording liquid is to for example spraying the best wettability of opening, so that recording liquid can spray from spraying opening part satisfactorily.In addition, under the situation that adopts recording liquid of the present invention, the cloud point order of magnitude of tensio-active agent that contains the organic compound of above-mentioned chemical formula is 80 ℃, be higher than the conventional tensio-active agent that uses, the result can prevent that the temperature of recording liquid on presser unit from surpassing the cloud point of tensio-active agent easily.

Utilization is except containing the tensio-active agent shown in the above-mentioned Chemical formula 1, also contain vapour pressure under 20 ℃ and be not more than other recording liquid of the present invention that 0.1mmHg and surface tension are not more than the glycol ether of 35mN/m, can be at any time, in the time of in the time of for example in printing ink is included in liquid chamber, in printing ink is present in the injection opening or after being deposited on the carrier, the surface tension of keeping printing ink is under low numerical value, thereby further improvement is to liquid chamber inside or to spraying the wettability of open interior.This advantage has increased the advantage that is specific to aforementioned recording liquid of the present invention.

In addition, the cost that contains the recording liquid of the present invention of tensio-active agent is lower than for example situation of acetylenediol of using, wherein said tensio-active agent contains the organic compound shown in the above-mentioned Chemical formula 1, rather than contains for example conventional surfactants of acetylenediol.

The accompanying drawing summary

Fig. 1 is the skeleton view that shows ink-jet printer device of the present invention.

Fig. 2 is the skeleton view that the ink jet-print head box that provides in the ink-jet printer device is provided.

Fig. 3 is the cross sectional view that shows the ink jet-print head box.

Printing ink feeding unit when Fig. 4 A and 4B show appropriate location in print cartridge is loaded in the ink jet-print head box, wherein Fig. 4 A is the side-view that shows when the supply opening is closed, Fig. 4 B is the cross sectional view that shows when the supply opening is opened.

Fig. 5 is presented at the side-view that concerns between an interior print cartridge of ink jet-print head box and the chip.

Fig. 6 A and 6B show the valve system in print cartridge connection section office, and wherein Fig. 6 A is the cross sectional view when showing valve closes, and Fig. 6 B is the cross sectional view when showing valve open.

Fig. 7 is the exploded view that shows a chip of ink jet-print head box.

Fig. 8 is the orthographic plan of bubble head chip.

Fig. 9 has illustrated a chip status that sprays ink droplet, and it is the cross sectional view of describing wherein at the state of the indoor printing ink air filled cavity that has formed substantially the same size of black sap cavity.

Figure 10 has illustrated a chip status that sprays ink droplet, and it is a cross sectional view of describing the state that ink droplet wherein almost directly ejects by two printing ink air filled cavitys downwards from nozzle.

Figure 11 has illustrated a chip status that sprays ink droplet, and it is the cross sectional view of describing wherein at the state of the indoor printing ink air filled cavity that has formed different size of black sap cavity.

Figure 12 has illustrated a chip status that sprays ink droplet, and it is a cross sectional view of describing the state that ink droplet wherein ejects basically obliquely by two printing ink air filled cavitys from nozzle.

Figure 13 is the side-view that shows the ink-jet printer device, and a part of wherein having removed this device is to show its inside.

Figure 14 is the skeleton diagram that shows the pilot circuit of ink-jet printer device.

Figure 15 is the skeleton diagram of the injection control unit of display control circuit.

Figure 16 A-16C is the cross sectional view that shows the injection control unit state of control ink droplet jet direction, wherein Figure 16 A is the cross sectional view that the ink droplet that directly sprays downwards basically is described, Fig. 1 6B is that explanation is the center with the nozzle, basically the cross sectional view of the ink droplet that sprays along direction of recording sheet width obliquely, Figure 16 C is that explanation is the center with the nozzle, basically the cross sectional view of the ink droplet that sprays along the reverse direction of recording sheet width obliquely.

Figure 17 is the schema of the printing of explanation ink-jet printer device.

Figure 18 shows the wherein side-view of the ink-jet printer device of a chip opening/closing device opened condition, and a part of wherein removing this device is to show its inside.

Figure 19 A-19C shows the modification of a chip, wherein Figure 19 A is the orthographic plan that shows the state when wherein resistance heater is parallel to the arrangement of recording sheet traffic direction, Figure 19 B is the orthographic plan that three resistance heaters that provide in the ink chamber are provided, and Figure 19 C is the orthographic plan that four resistance heaters that provide in the ink chamber are provided.

Figure 20 is the orthographic plan of a chip modification when showing the state that a resistance heater wherein only is provided.

Implement optimal mode of the present invention

With reference to the accompanying drawings, hereinafter illustrate according to recording liquid of the present invention, fluid cartridge, liquid injection apparatus and liquid jet method.Ink-jet printer device 1 as shown in Figure 1 (hereinafter referred to as print apparatus 1) will be for example ink jet to recording sheet P with the pre-determined direction operation, print image or letters/symbols as a result.This print apparatus 1 is so-called line printer unit, and wherein ink jet opening (nozzle) is along the width of recording sheet P, that is arranges in the mode of row basically along the direction of the arrow W among Fig. 1, to keep consistent with the print span of recording sheet P.

With reference to figure 2 and 3, this print apparatus 1 comprises ink jet-print head box 3 (box 3 hereinafter referred to as), for ink jet 2 as the recording liquid of document image or letters/symbols to recording sheet P, the main unit of the printer 4 of load head box 3 thereon.About print apparatus 1, a box 3 can install on the main unit of printer 4 or therefrom unload.On a box 3, have

print cartridge

11y, 11m, 11c and the 11k of detachable installation, they are as the printing ink source of supply with as operating for holding the fluid cartridge of printing ink within it.About print apparatus 1, can use yellow print cartridge 11y, scarlet print cartridge 11m, mazarine print cartridge 11c and black print cartridge 11k.Removably install to the box 3 on the main unit of printer 4 and removably install to print

cartridge

11y, 11m, 11c and 11k on the box 3, can exchange as running stores.

About above-described print apparatus 1, wherein recording sheet P is fixed on carriage 55a in it with stacked state, be loaded on the carriage load units 5, described carriage load units 5 is provided on positive bottom one side of main unit of printer 4, in order that allow to be loaded in the main unit inside that recording sheet P in the carriage 55a is supplied to printer 4.When carriage 55a was loaded on the bracket system unit 5 on the face side of main unit of printer 4, recording sheet P was fed to the rear side of the main unit of printer 4 from sheet material transport openings 55 by sheet material conveying/discharger 54.Be supplied to the recording sheet P of rear side of the main unit of printer 4, have the travel direction that is reversed roller 83 upsets, and supply to the forward side from the dorsal part of the main unit of printer 4 in the top of progress path one side.From the dorsal part of the main unit of printer 4 recording sheet P to the supply of forward side, before the sheet material outlet 56 that the face side from the main unit of printer 4 provides, discharging, from information processing device 69, the print data (being equivalent to letters/symbols data or view data) that enters as Personal Computer is printed on the sheet material with letters/symbols or graphic form.

Printing ink 2, as the recording liquid in printing, be by water-soluble dye as dyestuff, tinting material such as various pigment disperse the solvent of this tinting material, and the liquid mixture that constitutes of tensio-active agent (organic compound of representing comprising following Chemical formula 1):

Wherein m and n are not less than 1 integer.

As tinting material, but can use substantive dyestuff shown below, matching stain, basic dyestuff, reactive dyestuffs, food dye dispersed dye, vat pigment or soluble dye.Specifically, yellow substantive dyestuff can exemplify, and for example C.I. is directly yellow 1,8,11,12,24,26,27,28,33,39,44,50,58,85,86,87,88,89,98,100 and 110, and they can separately or be used in combination.It is directly red 1,2,4,9,11,13,17,20,23,24,28,31,33,37,39,44,46,62,63,75,79,80,81,83,84,89,95,99,113,197,201,218,220,224,225,226,227,228,229,230 and 321 that the scarlet substantive dyestuff for example can exemplify C.I., and they can separately or be used in combination.The mazarine substantive dyestuff can exemplify for example C.I. sun blue 1,2,6,8,15,22,25,41,71,76,77,78,80,86,90,98,106,108,120,158,160,163,165,168,192,193,194,195,196,199,200,201,202,203,207,225,226,236,237,246,248 and 249, and they can separately or be used in combination.It is direct 17,19,22,32,38,51,56,62,71,74,75,77,94,105,106,107,108,112,113,117,118,132,133 and 146 that black direct dye for example can exemplify C.I., and they can separately or be used in combination.

Yellow matching stain can exemplify for example C.I. turmeric yellow 1,3,7,11,17,19,23,25,29,36,38,40,42,44,49,59,61,70,72,75,76,78,79,98,99,110,111,112,114,116,118,119,127,128,131,135,141,142,161,162,163,164 and 165, and they can separately or be used in combination.The scarlet matching stain can exemplify for example C.I. azogeramine, 6,8,9,13,14,18,26,27,32,35,37,42,51,52,57,75,77,80,82,83,85,87,88,89,92,94,97,106,111,114,115,117,118,119,129,130,131,133,134,138,143,145,154,155,158,168,180,183,184,186,194,198,199,209,211,215,216,217,219,249,252,254,256,257,262,265,266,274,276,282,283,303,317,318,320,321 and 322, they can separately or be used in combination.The mazarine matching stain can exemplify for example C.I. Blue VRS, 7,9,15,22,23,25,27,29,40,41,43,45,54,59,60,62,72,74,78,80,82,83,90,92,93,100,102,103,104,112,113,117,120,126,127,129,130,131,138,140,142,143,151,154,158,161,166,167,168,170,171,175,182,183,184,187,192,199,203,204,205,229,234 and 236, they can separately or be used in combination.The black matching stain can exemplify for example C.I.

Acid Black

1,2,7,24,26,29,31,44,48,50,51,52,58,60,62,63,64,67,72,76,77,94,107,108,109,110,112,115,118,119,121,122,131,132,139,140,155,156,157,158,159 and 191, and they can separately or be used in combination.

Yellow basic dyestuff can exemplify for example C.I. basic black 2.8, C.I. basic yellow 1,2,11,12,14,21,32 and 36, and

Basic Orange

2,15,21 and 22, and they can separately or be used in combination.The scarlet basic dyestuff for example can exemplify C.I. alkali red 1:1,9,12,13 and 37 and C.I.

alkaline purple

1,3,7,10 and 14, and they can separately or be used in combination.The mazarine basic dyestuff for example can exemplify C.I. alkali blue 1,3,5,7,9,24,25,26,28 and 29 and C.I.

alkali green

1 and 4, and they can separately or be used in combination.

Yellow active dye can exemplify for example C.I. reactive yellow 1,2,3,13,14,15 and 17, C.I.

reactive orange

2,5,7,16,20 and 24, and they can separately or be used in combination.The crimson active dyestuff can exemplify for example C.I. reactive red 6,7,11,12,13,14,15,17,21,23,24,35,36,42,63,66 and 84, and they can separately or be used in combination.The mazarine reactive dyestuffs for example can exemplify C.I. Reactive blue 2,5,7,12,13,14,15,17,18,19,20,21,25,27,28,37,38,40 and 41 and C.I. active green 5 and 7, they can separately or be used in combination.

The yellow food dyestuff can exemplify for example C.I.

food Huang

3 and 4, and they can separately or be used in combination.

The scarlet food dye can exemplify for example C.I. Food Red 7,9,14 and 231, and they can separately or be used in combination.

The mazarine food dye can exemplify for example C.I.

food indigo plant

1 and 2, and they can separately or be used in combination.

The black-food dyestuff can exemplify for example C.I. food black 2.

Printing ink 2 can perhaps can comprise pigment with dyestuff by adding pigment as tinting material.Pigment can be the inorganic or pigment dyestuff of common little consumption.Mineral dye can be for example to be added with sooty titanium dioxide and the ferric oxide made by contact method, funnel (funnel) method or by the use of thermal means.Mineral dye also can be an azo pigment, comprising azo lake, insoluble azo colour, condensed azo-pigment and chelating azo pigment; Many ring pigment are comprising phthalocyanine pigment, perylene dye, perylene ketone pigment, anthraquinone pigment, quinacridone pigment, dioxadine pigment, thioindigo color, isoindoline ketone pigment or quinoline promise indone pigment; Dyestuff sequestrant such as basic dyestuff sequestrant or matching stain sequestrant; Nitropigments; Nitroso pigments and aniline pigment.

Employed colo(u)rant dispersion is in basic solution.As the pigment that is dispersed in the basic solution, for example exist by dispersion agent to be dispersed in the coloured pigment in the basic solution and to provide functional group and be dispersed in coloured pigment in the basic solution.

As for coloured pigment, yellow ultramarine can exemplify C.I. Pigment Yellow 73 1,2,3,4,5,6,7,8,9,10,11,12,13,14C, 15,16,17,24,34,35,37,42,53,55,65,73,74,75,81,81,83,93,95,97,100,101,104,108,109,110,114,117,120,128,129,138,150,151,153,154 and 180, and they can separately or be used in combination.

Red pigment can exemplify C.I Pigment red 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,28,19,21,22,23,30,31,32,37,38,39,40,48 (Ca), 48 (Mn), 48:2,48:2,48:4,49,49:1,50,51,52,52:2,53:1,53,55,57 (Ca), 57:1,60,60:1,63:1,64,64:1,81,83,87,88,89,90,101 (ferric oxide), 104,105,106,108 (cadmium reds), 112,114,122 (quinacridones black 3), 123,146,149,163,166,168,170,172,177,178,179,184,185,190,193,202,209 and 219, they can separately or be used in combination.

Blue pigments can exemplify C.I. pigment blue 1,2,3,15,15:1,15:2,15:3,15:34,16,17:1,22,25,56 and 60 and C.I. vat blue 4,60 and 63, and they can separately or be used in combination.

Pigment dyestuff can exemplify

C.I pigment orange

5,13,16,17,36,43 and 51, and they can separately or be used in combination.

Violet pigment can exemplify C.I. pigment violet 1 (rhodamine color lake), 3,5:1,16,19 (quinacridone is red), 2,3 and 38, and they can separately or be used in combination.

Black pigment can exemplify carbon black and C.I Pigment black 1.

As basic solution, can use the aqueous solution of sodium hydroxide, potassium hydroxide, lithium hydroxide, yellow soda ash, sodium bicarbonate, ammoniacal liquor, trolamine, diethanolamine, triethylamine or amino methyl propyl alcohol.

Dispersion agent can exemplify for example styrene-propene acid resin, styrene-propene acid-acrylate resin, styrene maleic acid resin, styrene maleic acid half ester resin, acryl-acrylate resin, iso-butylene maleic acid resin and Abietyl modified maleic acid resin.

Solvent as disperseing above-mentioned dyestuff makes water, this be because it satisfy such as low viscosity, handle easily, low-cost and do not have a feature the stink.As the solvent of printing ink 2, for example can using, ion exchanged water is mixed in the printing ink 2 to prevent unwanted ion.

In printing ink 2, except aqueous solvent or ion exchange resin, also comprise water-miscible organic solvent, as the derivative of aliphatic monohydric alcohol, aliphatic polyol or aliphatic polyol as solvent.

Specifically, aliphatic monohydric alcohol can exemplify for example lower alcohol, and as methyl alcohol, ethanol, n-propyl alcohol, Virahol, propyl carbinol, sec-butyl alcohol or the trimethyl carbinol, they can separately or be used in combination.If aliphatic monohydric alcohol, then can be set the surface tension of printing ink 2 as solvent to suitable numerical value, so that can obtain the printing ink 2 that the point of its perviousness to recording sheet P, print image forms performance and drying property excellence.In the case, by using ethanol, isopropylcarbinol or propyl carbinol solvent, can obtain to have the printing ink 2 of above-described excellent properties as printing ink 2.

Aliphatic polyol can exemplify for example alkylene dihydric alcohol, as ethylene glycol, glycol ether, triglycol, propylene glycol, butyleneglycol or glycerine, and polyalkylene glycol, as polyoxyethylene glycol or polypropylene glycol and sulfo-glycol ether, they can separately or be used in combination.The derivative of aliphatic polyol for example can exemplify, the lower alkyl ether of aliphatic polyol, and as glycol dimethyl ether, the rudimentary carbonic ether of aliphatic polyol is as glycol diacetate.Under the aliphatic polyol that more than adopting, exemplifies and the situation of derivative thereof, solvent as printing ink 2, it is less sensitive to give 2 pairs of dryings of printing ink, can reduce simultaneously the freezing point of printing ink 2, make that consequently the variation of the 2 pairs of physicalies of printing ink under standing storage is less sensitive, and nozzle 44a is to less sensitive with the obstruction of dry printing ink 44a.

Therefore,, be used in combination the derivative of one or more aliphatic monohydric alcohols, aliphatic polyol and aliphatic polyol,, can obtain to be suitable for the printing ink of target or application as disperseing for example solvent of dyestuff with specified property by using except water.

Except aliphatic monohydric alcohol, aliphatic polyol and derivative thereof, printing ink 2 also can be in conjunction with adding acid amides, as dimethyl formamide or N,N-DIMETHYLACETAMIDE, ketone such as acetone or Pyranton, ketone-alcohol, trivalent alcohol, as tetrahydrofuran (THF) ， diox, gamma-butyrolactone, glycerine, 1,2,6-hexanetriol, and nitrogen-containing heterocycle compound.By so like this, can improve aforementioned various feature.

In printing ink 2, except aforementioned dyestuff and solvent, also comprise the tensio-active agent of the organic compound that comprises that at least following Chemical formula 1 is represented:

Wherein m and n represent to be not less than 1 integer.

The organic compound that above-mentioned Chemical formula 1 is represented, promptly oxyethane (EO) adducts of 3-ethyl-3-methylol-enanthol is a nonionogenic tenside, makes more cheaply at industrial its comparable for example acetylenediol.In addition, above-mentioned organic compound demonstrates lower lathering property and excellent antifoam performance when being mixed in the printing ink 2 as tensio-active agent.

In Chemical formula 1, m and n, that is the addition amount of EO is to be not less than 1 integer.If any one is 0 for m or n, then can not realize effect of the present invention.M and n sum, that is total addition amount of EO is not more than 30, preferred 2-10, more preferably 4-8.The total addition amount of EO above 30 is not an ideal, because surface tension does not descend so easily.

Except the tensio-active agent that contains the organic compound shown in the above Chemical formula 1, also can use and mix one or more ethers, as Voranol EP 2001 or polyoxyethylene alkyl phenyl ether, ester, as polyoxyethylene fatty acid ester, poloxalkol, polyoxyethylene alkanamine ether, or nitrogenous compound, the tensio-active agent that obtains in the polyoxyethylene acetylenediol as fatty diglycollic amide.

Under the situation of utilizing the printing ink 2 that mixes the above-mentioned substance acquisition, wherein contain nonionogenic tenside at described printing ink 2, described nonionogenic tenside contains the organic compound that Chemical formula 1 is represented, rather than the conventional surfactants of forming by acetylenediol, but control foaming and the wettability that improves recording sheet P.That is to say that printing ink is along the thickness rapid osmotic of recording sheet P and present dry status.Therefore, printable by depositing to image that recording sheet P go up to obtain or letters/symbols data to not oozing out or the high image quality state of flushing.

In addition, utilize printing ink 2 of the present invention, its use contains the nonionogenic tenside of the organic compound that Chemical formula 1 represents, even is exposed at fiber under the situation of major surfaces of recording sheet P, and the fixed performance of printing ink (fixation property) also is improved.That is to say that printing ink is living through the plain paper of applying glue, especially the fixed performance on the sheet material of a series of scraps of paper of separating with paper, bonding paper or by perforation of copy paper, report is improved.This improves the quality of the letters/symbols of printing, or the print quality of so-called letters/symbols (edge of reduction oozes out, or marginal sharpness).

In addition, utilize printing ink 2 of the present invention, its use contains the nonionogenic tenside of the organic compound that Chemical formula 1 represents, even be that the pulsed current of 1kHz promotes under the situation of described subsequently a pair of resistance heater 42a, 42b adopting frequency, can eject ink droplet I, consequently even under flying print, can provide the ink jet performance also excellent recording liquid.

Utilize printing ink 2, the cloud point height of the nonionogenic tenside of the organic compound shown in the Chemical formula 1 that wherein contains and the order of magnitude are 89 ℃, when printing ink sprays with the drop form routinely, the cloud point that does not surpass tensio-active agent, results ink can be deposited on the recording sheet P with stable liquid properties state, and changes of properties do not occur.

In printing ink 2, based on the gross weight of printing ink 2, the content that contains the tensio-active agent of the organic compound shown in the Chemical formula 1 is being not less than 0.05wt% in the scope that is not more than 10wt%, more preferably is being not less than 0.1wt% in the scope that is not more than 5wt%.If based on the total amount of printing ink 2, the content of tensio-active agent that contains the organic compound shown in the Chemical formula 1 is less than 0.05wt%, and then printing ink is poor to the wettability of recording sheet P.On the other hand, if based on the total amount of printing ink 2, the content of tensio-active agent that contains the organic compound shown in the Chemical formula 1 is greater than 10wt%, and then printing ink may experience foaming.Therefore, crucial is, the content that contains the tensio-active agent of the organic compound shown in the Chemical formula 1 is not less than 0.05wt% and is not more than 10wt% with respect to the gross weight of printing ink 2, to obtain non-foaming and can infiltrate printing ink 2 in the recording paper P fully.

Except dyestuff, solvent and the tensio-active agent of above indication, also viscosity modifier, surface tension modifier, pH regulator agent, antiseptic-germicide, rust-preventive agent or mould inhibitor can be joined in the printing ink 2.Particularly, viscosity modifier, surface tension modifier and pH regulator agent can exemplify protein, as gelatin or casein, natural rubber, as gum arabic, derivatived cellulose is as methylcellulose gum, carboxymethyl cellulose or Walocel MT 20.000PV, natural polymeric material, as sulfonated lignin or lac, polyacrylic ester, styrene-propene acid copolymer, polyvinyl alcohol and Polyvinylpyrolidone (PVP).Can optionally add in these one or more.Antiseptic-germicide, antiseptic-germicide, rust-preventive agent and mould inhibitor can exemplify for example phenylformic acid, dichlorobenzene, Perchlorobenzene, Sorbic Acid, p-Hydroxybenzoate and ethylenediamine tetraacetic acid (EDTA) (EDTA).Can optionally use in these one or more.

The printing ink 2 that can form more than the preparation as described below: in preparation solution class printing ink 2, for example use that dyestuff mixes the tinting material, solvent and the tensio-active agent that are formed by above-mentioned dyestuff as tinting material together, be heated to 40-80 ℃, with under this state, stir together and disperse.Under the situation of the dispersion liquid of printing ink 2, for example use pigment as tinting material, can use the micropigment dispersing method that uses up to now, for example ball mill, sand mill, masher, roller mill, agitator, Henschel mixer, colloidal mill, ultrasonic homogenizer, pearl shredder (pearl mill) or wet shot shredder, by dispersed color in solvent and tensio-active agent, thus preparation printing ink.Use strainer at least once by filtering under pressure, and/or by filtration under diminished pressure, or use centrifuge separator at least once by centrifugation, thus process so printing ink 2 of preparation, to remove impurity, coarse particles or chip.

Prepare printing ink 2 in this way, so that the surface tension at 25 ℃ of following printing ink 2 is 30-60mN/m, more preferably 30-40mN/m, in order that printing ink can do with flying print, more particularly, in order that will adopt frequency to be not less than 1kHz, preferably be not less than 3kHz, the pulsed current that more preferably is not less than 53kHz drives described subsequently a pair of resistance heater 42a, 42b.Preparation printing ink 2, so that it has low viscosity numerical value, wherein its viscosity preferably is not higher than 15mPa.s, more preferably no higher than 5mPa.s.

With reference to figure 2 and 3, the above preparation and present xanchromatic printing ink 2 is accommodated in the print cartridge 11y.Present xanchromatic printing ink 2 and be accommodated in the print cartridge 11m, present navy blue printing ink 2 and be accommodated in the print cartridge 11c, the printing ink 2 that presents black is accommodated in the print cartridge 11k.

With reference to the accompanying drawings, below will illustrate on the main unit that can install to printer 4 and therefrom unload print cartridge 11y, the 11m, 11c and the 11k that form a box 3 of above-described printer 1 and can install on the box 3 and therefrom unload.

In Fig. 1, from the upper surface of the main unit of printer 4, that is the direction of arrow A indication is loaded in the box 3 that recording sheet P prints from Fig. 1, when it ejects printing ink 2 and goes up to the recording sheet P that moves through recording sheet transmission/discharger 54, print.

Box 3 is pulverized printing ink 2 by the pressure that the pressure generation equipment that uses electric heating for example or electromechanical umformer generates, and sprays the printing ink of so pulverizing, with drop form sprinkling oil China ink 2 to the major surfaces of carrier such as recording sheet P.With reference to figure 2 and 3, a box 3 comprises the main unit of box 21, and

print cartridge

11y, 11m, 11c and 11k are loaded on the main unit of this box 21 as the container of introducing printing ink 2.

Print cartridge

11y, 11m, 11c and 11k are called as print cartridge 11 herein sometimes.

The print cartridge 11 that can install on the box 3 or therefrom unload comprises box container 12, and described box container 12 for example demonstrates intensity and ink-repellant polypropylene production by the casting resin material.Box container 12 is essentially rectangular shape, and longitudinal size the width dimensions with recording sheet P is identical basically, the capacity of the printing ink that stores within it for maximization.

Specifically, the box container 12 that forms print cartridge 11 is furnished with the printing ink storage 13 that stores printing ink 2 within it, be used for from the printing ink feeding unit 14 of printing ink storage 13 to the main unit supply printing ink 2 of a box 3 boxes 21, make extraneous air enter external channel opening 15 in the printing ink storage 13, the air that obtains by external channel opening 15 is incorporated into the gas inlet 16 in the printing ink storage 13, the storage element 17 of temporarily stored printing ink 2 between access portal 15 and the gas inlet 16 externally, maintenance protuberance 18 and engages step 19 (these two all is used to block print cartridge 11 by the main unit of box 21).

Printing ink storage 13 forms the space that holds printing ink 2 within it by high resistance to air loss.Printing ink storage 13 be essentially rectangular shape and longitudinal size basically with size along the width of employed recording sheet P, that is the width W of recording sheet P shown in Figure 3 is identical.

Pars intermedia office in the bottom of printing ink storage 13 side provides printing ink feeding unit 14, and it is the outstanding form of nozzle of intercommunication in printing ink storage 13.The end of nozzle is mounted on the connection portion 26 of a described subsequently box 3 for the box container 12 that makes print cartridge 2 and connects on the main unit of the box 21 of box 3 to the end.

With reference to figure 4A and 4B, printing ink feeding unit 14 comprises printing ink 2 is fed to supply opening 14b on the basal surface 14a of print cartridge 11.This basal surface 14a is furnished with the valve 14c of opened/closed supply opening 14b, makes the whisker 14d of valve 14c skew and the opened/closed pin 14e of opened/closed valve 14c on the direction of closed supply opening 14b.Shown in Fig. 4 A, print cartridge 11 will be loaded in preposition stage (pre-stage) on the main unit of box 21 therein, the supply opening 14b that links to each other with the connection portion 26 of a box 3 is being offset on the direction of valve 14c closure and closure under the biassing force of whisker 14d.Shown in Fig. 4 B, when print cartridge 11 was loaded on the main unit of box 21, on the direction opposite with the offset direction of whisker 14d, opened/closed pin 14e was lifted by the top of the connection portion 26 of the main unit of box 21 (it forms a box 3).The opened/closed pin 14e that so lifts heads on the bias voltage of whisker 14d, lifts valve 14c, opens supply opening 14b.In such a way, the printing ink feeding unit 14 of print cartridge 11 connects on the connection portion 26 of box 3 to the end, sets up passage between printing ink feeding unit 13 and printing ink storage 31, and printing ink 2 can be supplied in the printing ink storage 31.

When taking out in the connection portion 26 that from the beginning print cartridge 11 provides on box 3 one sides, that is to say, when unloading print cartridge 11 in the load units 22 of box 3 from the beginning, cancel the advanced state of valve 14c with opened/closed pin 14e, valve 14c moves along the offset direction of whisker 14d, closed supply opening 14b.In such a way, even before on the main unit that print cartridge 11 is loaded in box 21, directly the end of guiding printing ink feeding unit 14 downwards can prevent that also printing ink 2 from going out from the internal leakage of printing ink storage 13.On the other hand, when print cartridge 11 took out from the main unit of box 21, therefore the closed immediately supply opening 14b of valve 14c can prevent that printing ink from leaking out from the end of printing ink feeding unit 14.

As shown in Figure 3, external channel opening 15 is the portholies that will be incorporated into from print cartridge 11 air outside in the printing ink storage 13.On the upper surface of box container 12, this middle portion that is in upper surface forms the external channel opening, its position make a box 3 install on the load units 22 moment opening 15 can towards outside, so that even on the load units 22 that is loaded in a box 3 time, opening surface is outside, to suck air outside.External channel opening 15 is drawn into air in the print cartridge 11, the printing ink slippage in the printing ink storage 13 that its consumption is equivalent to cause when print cartridge 11 is loaded in the main unit of box 21, so printing ink 2 flows down in the main unit of box 21.

Gas inlet 16 provides the intercommunication of printing ink storage 13 with external channel opening 15, will be incorporated in the printing ink storage 13 through external channel opening 15 inhaled airs.In such a way, in case printing ink 2 is loaded on the main unit of box 21, even when it is supplied in the main unit of the box 21 in the box 3 on the print cartridge 11, also can air be incorporated in the printing ink storage 13 by gas inlet 16, thereby reduce the printing ink 2 in printing ink storage 13, produce decompression state in the internal space of printing ink storage, consequently internal pressure can maintain under the equilibrated state, and printing ink 2 can be introduced in the main unit of box 21.

Externally provide storage element 17 between access portal 15 and the gas inlet 16, be used at printing ink 2 under the situation that the gas inlet 16 with 13 intercommunications of printing ink storage leaks, outwards flowing to suddenly under the outside situation temporarily stored printing ink 2 at printing ink 2.Storage element 17 is formed diamond shape basically, and wherein this rhombohedral extends than the y direction of long diagonal lines along printing ink storage 13.Place, rhombus summit at the foot of printing ink storage 13 that is to say, provides gas inlet 16 at the one side place, bottom of short lineae trapezoidea, in order that the printing ink 2 that will introduce from printing ink storage 13 turns back in the printing ink storage 13.Also provide storage element 17, so that less sensitive through 2 pairs of leakages of printing ink of printing ink storage 13 introducings by printing ink storage 13 at the place, summit of short cornerwise topmost.

On a side of the minor face of print cartridge 11, form maintenance protuberance 18 and be engaged in the engagement opening 24a of latch bar 24 of the main unit of box 21 in the box 3.This maintenance protuberance 18 makes its upper surface form plane with the side perpendicular of printing ink storage 13, make simultaneously its lower surface from the side upwards surface direction tilt.Engages step 19 is provided to the lateral upper portion office of print cartridge 11, forms the maintenance protuberance 18 of print cartridge 11 at this.Engages step 19 is by the surperficial 19a that tilts with the opposite side of the surperficial 19a that tilts with the opposite flank is adjacent and make with the isoplanar plane 19b of upper surface basically.Because print cartridge 11 is furnished with engages step 19, therefore have low step of upper surface of side aspect ratio print cartridge 2 of the engages step of plane 19b, this step part is meshed with the joggle piece 23 of the main unit of box 21.When box 3 is introduced on the load units 22, on the side of insertion end, provide engages step 19 right overhead.When box 3 was by joggle piece 23 engagements right overhead, engages step 19 was provided on the side of insertion end, so that install to the effect of playing turning axle in the load units 22 at print cartridge 11.

Above-described print cartridge 11 comprises that also the residual quantity detecting unit is with residual quantity that detects printing ink 2 in printing ink storage 13 and the recognition unit of

discerning print cartridge

11y, 11m, 11c and 11y except comprising said modules.

Hereinafter explanation is mounted with the box 3 of print cartridge 11y, the 11m, 11c and the 11k that hold yellow, scarlet, mazarine and black ink 2 that make as mentioned above.

With reference to figure 2 and 3, make a box 3 by the main unit of print cartridge 11 and box 21.The main unit of box 21 comprises load units 22y, 22m, 22c and the 22k that loads print cartridge 11; joggle piece 23; and the latch bar 24 of holding ink container 11; the biased element 25 that print cartridge 11 is offset on automatic removing direction; be connected on the printing ink feeding unit 14 in order to supply the interconnecting piece 26 of printing ink 2, the skull 28 of a chip 27 of ink jet 2 and a protection chip 27.Notice that they abbreviate load units 22 as under the situation of censuring whole load units 22y, 22m, 22c and 22k.

Load the load units 22 of print cartridge 11, have and make its upper surface cave in into the insertion of print cartridge 11/eject opening, in order that allow the loading of print cartridge 11.In embodiments of the invention, 4 print cartridges 11 (side-by-side) shoulder to shoulder are placed on the direction with recording sheet P width perpendicular, that is to say, on the travel direction of recording sheet P.Because print cartridge 11 is placed in the load units 22, therefore, vertically provides load units along the print span direction, as print cartridge 11.Print cartridge 11 is laid and is loaded in the main unit of box 21.

As shown in Figure 2, load units 22 is the unit that are mounted with print cartridge 11.Being mounted with the each several part load units 22 of black print cartridge 11y, scarlet print cartridge 11m, mazarine print cartridge 11c and black print cartridge 11k, is respectively load units parts 22y, 22m, 22c and 22k.Load units 22y, 22m, 22c and 22k are separated each other by dividing plate 22a.Simultaneously, owing to use black print cartridge 11k in large quantities, therefore, it has thicker thickness, in order that increase the capacity of printing ink 2.For this reason, load units 22k is wider than all the other load units 22y, 22m, 22c on width, with the consistency of thickness of maintenance with print cartridge 11k.

As shown in Figure 3, the opening end that is mounted with the load units 22 of print cartridge 11 is furnished with joggle piece 23.Vertical lateral edge place at load units 22 provides this joggle piece 23, and is meshed with the engages step 19 of print cartridge 11.The position of engagement of engages step 19 that utilizes print cartridge 11 is as insertion end, print cartridge 11 is incorporated in the load units 22 with being tilted, and be loaded on the load units 22, will be so that the position of engagement that utilizes the engages step 19 with joggle piece 23, is not furnished with the part print cartridge 11 of engages step 19 as turning axle towards load units 22 rotations.This makes print cartridge 11 easily to install on the load units 22.

Form latch bar 24 by the flexural spring plate, it is provided on the side of the load units 22 relative with joggle piece 23, that is to say, on the side of the opposite side of load units 22.Latch bar 24 makes its near-end of v vertically form the end with lateral bottom side portion at opposition side along what form load units 22, make simultaneously its far-end towards with lateral direction away from this on form and have Elastic deflection.The far-end of latch bar is formed with engagement opening 24a.Latch bar 24 recoverable deformations when print cartridge 11 is loaded on the load units 22, and engagement opening 24a unloads from load units 22 with the print cartridge 11 that prevents to be loaded on the load units 22 by maintenance protuberance 18 engagements of print cartridge 11.

By elasticity of flexure plate, print cartridge 11 is offset on the engagement direction, thereby is forming biased element 25.Biased element 25 is the push rods (ejector) that have by being bent to form the top, and towards with away from the direction of basal surface on recoverable deformation, promotion is loaded in the basal surface of the print cartridge 11 on the load units 22, and the print cartridge 11 that is loaded on the load units 22 is offset in the direction that unloads from load units 22.When maintenance protuberance 18 was untied from the engagement opening 24a of latch bar 24, biased element 25 ejected print cartridge 11 from load units 22.

When

print cartridge

11y, 11m, 11c and 11k are installed on load units 22y, 22m, 22c and the 22k respectively, have the connection portion 26 of installation in the pars intermedia office longitudinally along load units 22y, 22m, 22c and 22k, the printing ink feeding unit 14 of

print cartridge

11y, 11m, 11c and 11k is connected thereto.Connection portion 26 is with the formal operations of printing ink feed line, and printing ink 2 is fed on the chip 27 that the basal surface in the main unit of box 21 provides, with supply printing ink 2 from the printing ink feeding unit 14 that is loaded in the print cartridge 11 on the load units 22.

Particularly with reference to figure 5, connection portion 26 comprises that printing ink storage 31 is for the printing ink 2 that stores by print cartridge 11 supplies, sealing element 32 is for the printing ink feeding unit 14 that is sealably coupled on the connection portion 26, strainer 33 supplies the feed lines of opened/closed towards a chip 27 for the impurity and the valve system 34 that remove in the removal ink 2.

Printing ink storage 31 is the spaces that are connected on the printing ink feeding unit 14, for the printing ink 2 that stores by print cartridge 11 supplies.Sealing element 32 provides the element at printing ink storage 31 tops, and when printing ink feeding unit 14 is connected on the printing ink storage 31 of connection portion 26, be hermetically sealed in the space between printing ink storage 31 and the printing ink feeding unit 14, suppress printing ink 2 to external leaks.Strainer 33 is used to remove pollutent, as being mixed into dust and the foul in the printing ink 2 in the process of installing/unloading print cartridge 11.Strainer 33 is installed in the downstream of printing ink storage 31.

With reference to figure 6A and 6B, valve system 34 comprises ink inlet 34a (it is supplied the printing ink 2 from printing ink storage 31), the 34b of ink chamber (it has been supplied effusive printing ink 2 from ink inlet 34a), eject ink export 34c from the printing ink 2 of ink inlet 34a, towards the 34b of ink chamber of ink inlet 34a with towards the opening 34d that forms between the 34b of ink chamber of ink export 34c, the valve 34e of opened/closed opening 34d, the biased element 34f that valve 34e is offset on the direction of closing any opening 34d, negative pressure adjusting screw(rod) 34g for the biassing force of regulating biased element 34f, be connected to the valve shaft 34h on the valve 34e, and be connected to the baffle plate 34i on the valve shaft 34h.

Ink inlet 34a is the feed line that is connected on the printing ink storage 13, with the printing ink 2 in the printing ink storage 31 of print cartridge 11 in printing ink storage 31 is supplied to the end chip 27.Provide ink inlet 34a from the bottom side of printing ink storage 31 up between the 34b of ink chamber.The 34b of ink chamber be in conjunction with ink inlet 34a, ink export 34c and opening 34d be essentially the orthogonal space, and be supplied printing ink 2 from ink export 34c, discharge printing ink 2 through opening 34d from ink export 34c simultaneously.Ink export 34c is through the opening 34d supply feed line from the printing ink 2 of the 34b of ink chamber, and this feed line is connected to the end on the chip 27.Provide from the 34b of ink chamber and extend the ink export 34c of chip 27 to the end always.

Valve 34e is the valve that closing any opening 34d separates ink inlet 34a side and ink export 34c side.Under the restorer of the biassing force of biased element 34f, the baffle plate 31i that connects by valve shaft 34h and under the negative pressure of the printing ink 2 on the ink export 34c side, mobile valve 34e.When arranging valve 34e in the lower end, valve 34e closing any opening 34 separates ink inlet 34a side and ink export 34c side, interrupts to ink export 34c supply printing ink 2.When arranging valve 34e by the biassing force of biased element 34f in the upper end, valve 34e does not interrupt ink inlet 34a side and ink export 34c side, and printing ink 2 can be supplied to the end in the chip 27.Although to the material of valve 34e without limits, valve 34e is for example by rubber elastic material, and perhaps so-called elastomerics forms, in order to ensure high gas-tight seal performance.

Biased element 34f is a compression helical spring for example, and between the upper surface of the upper surface of valve 34e and the 34b of ink chamber interconnection negative pressure regulating spring 34g and valve 34e, valve 34e is offset on the direction of closing any opening 34e.Negative pressure adjusting screw(rod) 34g is used to regulate the biassing force of biased element 34f, so that by regulating this negative pressure adjusting screw(rod) 34g, can regulate the biassing force of biased element 34f.By so like this, the negative pressure of adjustable fuel-economizing China ink 2, the negative pressure propulsion valve 34e of described printing ink 2, the opened/closed of decision opening 34d is as what describe in detail subsequently.

Valve shaft 34h is used to provide the valve 34e that is connected to the one end and is connected to the attended operation of the baffle plate 34i of its other end.Baffle plate 34i is the thin elastic sheet material that is connected to the other end of valve shaft 34h.Baffle plate 34i is made with another major surfaces that contacts with atmosphere by the major surfaces in the ink export 34c of the 34b of ink chamber side, and under the negative pressure of printing ink 2, is Elastic deflection to atmosphere and ink export 34c side.

As shown in Figure 6A, utilize above-described valve system 34, under the bias voltage of biased element 34f and baffle plate 34i, propulsion valve 34e on the direction of the opening 34d of the closed 34b of ink chamber.When from the beginning printing ink 2 penetrate in the chip 27, so that when the negative pressure of the printing ink 2 in the 34b of ink chamber on the ink export side 34c that separates by opening 34d raises, baffle plate 34i is picked up under the negative pressure of printing ink 2, and the bias voltage that heads on biased element 34f lifts valve 34e and valve shaft 34h together.This moment, the opening 34d between ink inlet side 34a and ink export side 34c is opened, and printing ink 2 is fed to ink export side 34c from ink inlet side 34a.When the negative pressure of printing ink 2 descended, baffle plate 34i recovered its original shape, under the bias voltage of biased element 34f, valve 34e is descended with valve shaft 34h, the closed 34b of ink chamber of result.Therefore, utilize valve system 34, the negative pressure when printing ink 2 raises at every turn, during ink jet, repeats above-mentioned described method.

In addition, utilize connection portion 26, when the printing ink in printing ink storage 13 2 was supplied among the 34b of ink chamber, the amount of the printing ink 2 in printing ink storage 13 descended.This moment, atmosphere is in gas inlet 16 is introduced in print cartridge 11.Air in the introducing print cartridge 11 are transported to the upper end portion of print cartridge 11.Therefore this restores back ink droplet i is the equilibrated state also from the state before the nozzle 44a ejection.Under this equilibrium state, in gas inlet 16, almost there is not printing ink 2.

As shown in Figure 5, a chip 27 is arranged along the basal surface of the main unit of box 21.A plurality of nozzle 44a, as the printing ink ejiction opening that sprays by the ink droplet i of connection portion 26 supplies, along the width of recording sheet P, that is the direction of the arrow W among Fig. 5, with the form of row from a kind of color alignment to another kind of color.

As shown in Figure 2, skull 28 is covertures of a protection chip 27, and when printing operation, from the beginning it be removed in the chip 27.The groove 28a that provides along the opened/closed direction is provided skull 28, and the cleaning roller 28b that provides along the longitudinal is in order to the suction set excess of ink 2 on the jeting surface 27a of chip 27 to the end.In the opened/closed operating process, skull 28 is along the width of print cartridge 11, along groove 28a opened/closed.This moment, with jeting surface 27a in abutting connection with time rotation cleaning roller 28b, suction excess of ink 2 is among the jeting surface 27a with cleaning head chip 27.This cleaning roller 28b is for example formed by the material of height moisture absorption.Under the situation that does not print operation, add a cover the printing ink 2 of skull 28 protections in a chip 27, avoid dry.

Above-described box 3 has the residual ink detector with the residual ink amount of detection in print cartridge 11, and the printing ink existence/there is not detector, be used for detecting when printing ink feeding unit 14 has been connected on the connection portion 26 the existence of printing ink 2/do not exist.

Shown in Fig. 7 and 8, aforementioned chip 27 comprises, printing ink 2 for every kind of color, circuit substrate 41 is as base components, basically with the traffic direction of recording sheet P, promptly along rectangular a pair of resistance heater 42a, the 42b that arranges shoulder to shoulder of the width of recording sheet P, prevent the film 43 that printing ink 2 leaks, has big flow nozzle 44a to be provided as the nozzle sheet material 44 of droplet jet printing ink 2, as the spatial China ink sap cavity chamber 45 that is centered on and supply printing ink 2 by these assemblies, and the printing ink conduit 46 of giving black sap cavity chamber 45 supply printing ink 2.

Circuit substrate 41 is the semiconductor-based ends that have for example silicon of paired resistance heater 42a, 42b on its major surfaces 41a.These paired resistance heater 42a, 42b are being connected on the injection controller 63 on the circuit substrate 41.Described subsequently this injection controller 63 is the electronic circuits that for example form by logic IC (unicircuit) or transistor.

Heat paired resistance heater 42a, 42b by pulsed current,, improve internal pressure with the printing ink 2 of heating in black sap cavity chamber 45 by injection controller 63 supplies.That is to say that resistance heater 42a, 42b are that pressure generates device.By the printing ink 2 of these paired resistance heater 42a, 42b heating, from the nozzle 44a of described nozzle sheet material 44 interior formation subsequently, spray with the drop state.

Film 43 is fixed on the major surfaces of circuit substrate 41 as one deck.Film 43 is the dry protection film of cured film protective membrane class of for example exposing.This film lamination on all surfaces basically of the major surfaces 41a of circuit substrate 41, and is made by the photolithography method and not contain non-required part, so that film is around the resistance heater 42a, the 42b that are concave form.Form the part of black sap cavity chamber 45 around the part film 43 of paired resistance heater 42a, 42b.

Nozzle sheet material 44 is chip components, and its thickness order of magnitude is the 10-15 micron, and it comprises the nozzle 44a of atomizing of liquids ink droplet i, and is laminated on the surface of the film 43 relative with circuit substrate 41 sides.Nozzle 44a is the hole of the miniature sizes of the diameter 15-18 micron that circle is opened in nozzle sheet material 44, and arranges towards paired resistance heater 42a, 42b.This nozzle sheet material 44 forms the part of black sap cavity chamber 45.

China ink sap cavity chamber 45 is the spaces that surrounded into by circuit substrate 41, paired resistance heater 42a, 42b, film 43 and nozzle sheet material 44, and holds the printing ink 2 by 46 supplies of printing ink conduit within it.By the printing ink 2 of paired resistance heater 42a, 42b heating in black sap cavity chamber 45, so that the internal pressure of black sap cavity chamber 45 raises.

Printing ink conduit 46 is connected on the ink export 34c of connection portion 26, and supply is from the printing ink 2 in the print cartridge 11, and described print cartridge 11 is connected on the connection portion 26, forming conduit, supply printing ink 2 to each black sap cavity chambers 45 of printing ink conduit 46 intercommunications in.That is to say printing ink conduit 46 and connection portion 26 intercommunications.Therefore, the printing ink 2 by print cartridge 11 supplies flows in the printing ink conduit 46, so that be introduced in the black sap cavity chamber 45.

For each black sap cavity chamber 45, paired resistance heater 42a, 42b are provided for a unique chip 27.Each colour ink box 11 provides 100-500 black sap cavity chamber 45, and these black sap cavity chambers 45 are furnished with these paired resistance heater 42a, 42b.Under the instruction of the controller 68 of print apparatus 1, chip 27 is selected and is heated paired resistance heater 42a, 42b, through the nozzle 44a relevant, be injected in the interior printing ink 2 in the black sap cavity chamber relevant 45 with the paired resistance heater 42a, the 42b that heat with black sap cavity chamber 45.

That is to say, utilize a chip 27, will be by 46 supplies of printing ink conduit, connect the printing ink 2 on the chip 27 to the end, be incorporated in the black sap cavity chamber 45.Cause the pulsed current short period of time, for example flow through to the 1-3 microsecond paired resistance heater 42a, 42b, with the paired resistance heater 42a of rapid heating, 42b, consequently heat the part printing ink 2 that contacts with paired resistance heater 42a, 42b, generate the ink bubble of gas phase.Under the situation of the volumetric expansion of ink bubble, a part of volume of printing ink 2 is pressurized (printing ink 2 bubbles).Therefore, the volume of printing ink 2 equals the volume at the propulsive printing ink 2 of location ink bubble that contacts with nozzle 44a, and it sprays from nozzle 44a and is deposited on the recording sheet P with the form of ink droplet i.

As shown in Figure 8, utilize of the present invention chip 27, paired resistance heater 42a, 42b are arranged in parallel with each other in unique black sap cavity chamber 45 shoulder to shoulder.That is to say, in each black sap cavity chamber 45, provide paired resistance heater 42a, 42b.In a chip 27, many to resistance heater 42a, 42b with the direction of the travel direction perpendicular of the recording sheet P shown in the arrow C of Fig. 8 on, promptly, be arranged parallel to each other basically along the width of the recording sheet P shown in the arrow W of Fig. 8.Notice that nozzle 44a represents with a series of dotted line in Fig. 8.

Therefore, paired resistance heater 42a, 42b are divided into two-part unique resistor, and length is identical and width reduces by half, so that the resistance value of each resistor is near doubling.Resistor in these paired resistance heater 42a, 42b is one another in series under the situation about connecting, the resistor that resistance value doubles basically connections that be one another in series, consequently resistance value be cut apart before near 4 times.

As for the foaming of the printing ink 2 in black sap cavity chamber 45, need apply predetermined pulsed current on paired resistance heater 42a, 42b, with heating resistor well heater 42a, 42b, in order that the energy that generates when bubbling discharges ink droplet i.Under the situation of low-resistance value, the pulsed current that need have additional supply of.Yet, under paired resistance heater 42a, the 42b situation of (it is equivalent to unique resistor divided into two parts), the resistance value height, the result adopts the pulsed current of low numerical value can make the printing ink boiling.

Therefore, utilize a chip 27, can reduce transistorized size with the pulsed current supply with conserve space.Simultaneously, can further increase resistance value by the thickness that reduces paired resistance heater 42a, 42b.Yet, consider, to have some restrictions, to reduce the thickness of paired resistance heater 42a, 42b for the selection of paired resistance heater 42a, 42b from the angle of the material type or the strength of materials (weather resistance).For this reason, by decomposing resistance heater, rather than increase the resistance value of paired resistance heater 42a, 42b by reducing thickness.

In passing through the process of nozzle 44a ink jet in black sap cavity chamber 45, at paired resistance heater 42a, 42b is driven so that up to making the blistered time of printing ink by paired resistance heater 42a, 42b, promptly generate under the situation that time of ink bubble is equal to each other, basically just in time downwards from nozzle 44a ejection ink droplet i.If by paired resistance heater 42a, 42b air filled cavity on the rise time generation time poor, then be difficult to generate ink bubble basically simultaneously by paired resistance heater 42a, 42b, the result is with respect to the orientation of paired resistance heater 42a, 42b, and ink droplet i on one or other direction drift ground takes place and sprays.

Specifically, printing ink 2 is supplied in the printing ink conduit 46 that links to each other with a chip 27, so that printing ink 2 is introduced in the black sap cavity chamber 45.The pulsed current of same electrical flow valuve flow through simultaneously basically paired resistance heater 42a, 42b, the paired resistance heater 42a of rapid heating, 42b, consequently, with part printing ink 2 that paired resistance heater 42a, 42b contact in generate ink bubble B1, the B2 of gas phase so that the printing ink of pre-determined volume 1 supercharging by the expansion of these ink bubble B1, B2.Therefore, as shown in figure 10, in a chip 27, so the printing ink 2 of the equal volume of supercharging as ink droplet i by ink bubble B1, B2 in a chip 27, with part printing ink that nozzle 44a contacts on to spray towards recording sheet P downwards basically basically at right angles, so that be deposited on the recording sheet P with recording sheet P.For convenience of description, think on resistance heater 42a, to form ink bubble B1, on resistance heater 42b, form ink bubble B2 simultaneously.

In a chip 27, basically supply the pulsed current of different current values simultaneously to paired resistance heater 42a, 42b, with part printing ink 2 that paired resistance heater 42a, 42b contact in generate ink bubble B1, the B2 of different size, so that the printing ink of pre-determined volume 2 is because of the expansion supercharging of these ink bubble B1, B2, as shown in figure 11.Therefore, in a chip 27, the printing ink 2 of printing ink 2 equal volume of supercharging with in the printing ink part that contacts with nozzle 44a, passing through ink bubble B 1, B2, from nozzle 44a, spray along the width of the recording sheet P shown in the arrow W of Figure 12 as ink droplet i, and towards any ink bubble B1 with smaller size smaller or B2 drift, so that be deposited on the recording sheet P, as shown in figure 12.Simultaneously, volume at the ink bubble B1 that forms on the resistance heater 42a has been shown greater than the ink bubble B2 that on resistance heater 42b, forms among Figure 12.

Utilize the above-described structure of a chip 27, the printing ink 2 that contains the nonionogenic tenside of the organic compound shown in the above-mentioned Chemical formula 1 is supplied in the black sap cavity chamber 45, so that except ink bubble B1 or the generation in printing ink 2 in black sap cavity chamber 45 of the bubble the B2 that produces by paired resistance heater 42a, 42b is suppressed, the result does not cause following inconvenience, promptly hinders printing ink at the bubble of the indoor generation of black sap cavity and is fed on the resistance heater or through nozzle ejection.

Utilize a chip 27, the printing ink 2 that is fed in the black sap cavity chamber 45 contains at least a nonionogenic tenside, itself contains the organic compound of above-mentioned chemical formulation again this tensio-active agent, therefore printing ink 2 is not only to recording sheet P, and to inner circumferential surface, paired resistance heater 42a, 42b and the nozzle 44a of black sap cavity chamber 45, demonstrate excellent wettability, the result is after drop i sprays from nozzle, and printing ink 2 can be fed to rapidly on paired resistance heater 42a, the 42b.Therefore, utilize a chip 27, each in ink droplet i ejection, printing ink 2 can be fed to rapidly on paired resistance heater 42a, the 42b, that is to say, is not having under the situation of interrupting, printing ink 2 can be fed in the black sap cavity chamber 45 best, therefore, even spraying under the situation of ink droplet i under the short injection interval, ink droplet i also can spray from nozzle 44a best.Specifically, even adopt frequency to surpass 1kHz, preferred 3kHz, more preferably the pulsed current of 5kHz drives paired resistance heater 42a, 42b, and ink droplet i also can spray from nozzle 44a best.

In addition, utilize a chip 27, the printing ink 2 that is fed in the black sap cavity chamber 45 contains at least a nonionogenic tenside, itself contains the organic compound of above-mentioned chemical formulation again this tensio-active agent, the cloud point of this tensio-active agent is 80 ℃ the order of magnitude, be higher than conventional tensio-active agent, the result can suppress to surpass by the temperature of the printing ink 2 of paired resistance heater 42a, 42b heating the cloud point of tensio-active agent, and physicals is changed.Therefore, utilize a chip 27, the not dangerous easy cloud point that surpasses the printing ink 2 in black sap cavity chamber 45 of temperature that makes the printing ink 2 in black sap cavity chamber 45, and the stable physical property of printing ink 2, the result is with respect to inner circumferential surface, paired resistance heater 42a, 42b or the nozzle 44a of black sap cavity chamber 45, the wettability of printing ink can be kept, and can spray ink droplet i from nozzle 44a best.

Therefore, utilize of the present invention chip 27, the stable physical property of the printing ink 2 in black

sap cavity chamber

45, and 2 pairs in the printing ink for example wettability of nozzle 44a can remain on best state, even the result is when changing injection direction under the driving control at paired resistance heater 42a, 42b, ejection ink droplet i does not change on the spray angle of ink droplet i from nozzle 44a, and the result can be best with pre-determined direction ejection ink droplet i.

Description illustrates aforesaid formation print apparatus 1, is mounted with the main unit of the box 21 of a box 3.

With reference to figure 1 and 13, the main unit of printer 4 comprises a box-packed carrier unit 51; Box storing apparatus 52 is in order to hold and fixed head box 3 by a box-packed carrier unit 51; Skull opened/closed device 53 is in order to the opened/closed skull; Sheet material supply/discharger 54 is in order to supply/discharge recording sheet; Sheet material supply opening 55, to sheet material supply/discharger 54, and sheet material relief outlet 56 is in order to discharge recording sheet P from sheet material supply/discharger 54 in order to supply recording sheet P.

Box-packed carrier unit 51 is depressions that a box 3 loads within it.Load head box 3 in this depression.For print data on the moving recording sheet material, a box 3 is loaded in the depression, so that the jeting surface 27a of a chip 27 is arranged essentially parallel to the sheet surface of the recording sheet of operation.There is the situation that wherein causes a box 3 needs to be changed, makes that a box 3 is a kind of consumable articles, although it does not need the 11 often replacings as the print cartridge owing to a printing ink obstruction chip 27.Therefore, a box storing apparatus 52 holds a box 3, so as it from the beginning box hold in the load units 51 and unload.

Box storing apparatus 52 is used for holding load units 51 with a box and removably holds a box 3.Therefore, utilize this box storing apparatus, provide the knob 52a on the box 3 to the end to keep by biased element such as spring (not shown), provide described biased element in the maintenance opening 52b that wherein in the main unit of printer 4, forms, giving a box 3 pressurizations, in order to keep and fixed head box 3 facing to the position of the reference surface 4a on the main unit that is provided to printer 4.

Skull opened/closed device 53 has the skull 28 of driver element for an opened/closed box 3.In printing, skull opened/closed device is opened skull 28, and a chip 27 is exposed under the recording sheet P, and when printing began to finish, the closed skull 28 of skull opened/closed device was with a protection chip 27.

Sheet material supply/discharger 54 comprises the driver element of carrying recording sheet P.Be transferred the chip 27 of box 3 to the end from the recording sheet P of sheet material supply opening 55 supply.Deposit from the print record sheet material P of the ink droplet i of nozzle 44a ejection, be transferred arrival sheet material relief outlet 56 and be discharged to this device outside.Sheet material supply opening 55 is openings, and wherein recording sheet P is supplied in sheet material supply/discharger 54 through it, comprises the stacked and storage carriage 55a thereon of a plurality of recording sheet P.Sheet material relief outlet 56 is the outlets of discharging the recording sheet P that prints, and wherein the ink droplet i from nozzle 44a ejection has been deposited on the described recording sheet P.

Description illustrates as mentioned above the pilot circuit of printing by print apparatus in order to control as shown in figure 14 61 of structure.

Pilot circuit 61 comprises that printer driver unit 62 is in order to drive and to control the drive unit 53 of the main unit of

printer

4,54, injection controller 63 is fed to handling the electric current on the chip 27 that various colored inks 2 adopt in order to control, alarm unit 64 is in order to send warning to the residual quantity of each colored ink 2, I/O terminal 65 be used for and external devices between input/output signal, stored for example ROM of sequence of control (read-only storage) 66, RAM (random-access storer) 67 in order to temporarily stored for example sequence of control as sense data and the sequence of control and the controller 68 that optionally are used to read storage like this be used to control various assemblies.

Based on the control signal of coming self-controller 68, printer driver unit 62 promotes to form the CD-ROM drive motor of skull opened/closed device 53, with control skull opened/closed device opened/closed skull 28.Based on the control signal of coming self-controller 68, printer driver unit 62 promotes to form the CD-ROM drive motor of sheet material supply/discharger 54, so that supply is from the recording sheet P of the sheet material supply opening 55 of the main unit of printer 4, after printing, by control sheet material supply/discharger, discharge recording sheet P from sheet material relief outlet 56.

Injection controller 63 shown in Figure 15 is a kind of circuit, it comprises power supply feeding unit 71a, 71b arrives the paired resistance heater 42a that operates as resistor in order to the supply pulsed current, on the 42b, switching element 72a, 72b, 72c is used for on/off at paired resistance heater 42a, 42b and power supply feeding unit 71a, electronics on the 71b connects, variohm 73 is fed to paired resistance heater 42a in order to control, pulsed current on the 42b, ON-OFF control circuit 74a, 74b is in order to trip switch element 72b, the switch of 72c, and resistance value pilot circuit 75 is in order to the resistance value of control variohm 73.

Power supply feeding unit 71a is connected on the resistance heater 42b, and power supply feeding unit 71b is connected on the variohm 73 through switching element 72c.These two power supply feeding unit supply pulsed current are to electronic circuit.Can use power supply feeding unit 71a, 71b as the power supply source of supply although be transported to the power supply supply of the pulsed current on the electronic circuit, power supply for example also can directly be fed on the controller 68.

Switching element 72a cross-over connection is arranged in resistance heater 42a and goes up and ground connection, controls the ON/OFF that injection controller 63 sprays fully.Switching element 72b cross-over connection is arranged on paired resistance heater 42a, 42b and the variohm 73, is fed to pulsed current on paired resistance heater 42a, the 42b with control.Switching element 72c cross-over connection is arranged on variohm 73 and the power supply feeding unit 71b, with the direction of control ink droplet i injection.These switching elements 72a, 72b, 72c Be Controlled are carried out ON/OFF, are fed to pulsed current on the electronic circuit with control.

Variohm 73 changes resistance value, and the current value that is fed to the pulsed current on the resistance heater 42a is changed.That is to say, depend on that the size of the resistance value of variohm 73 decides the current value that is fed to the pulsed current on the resistance heater 42a.

The ON/OFF of ON-OFF control circuit 74a transfer lever element 72b is connected to variohm 73 on paired resistance heater 42a, the 42b, or disconnects variohm 73 and paired resistance heater 42a, 42b.The ON/OFF of ON-OFF control circuit 74b transfer lever element 72c, the ON/OFF that connects between conversion cross-over connection power supply feeding unit 71b and the electronic circuit.

The size of the resistance value of resistance value pilot circuit 75 control variohms 73 is regulated the size that is fed to the pulsed current on the resistance heater 42a.

If utilize above-described injection controller 63, cut-off switch element 72b, so that variohm 73 is not connected on paired resistance heater 42a, the 42b, connect switching element 72a, then pulsing circuit is fed to paired resistance heater 42a, the 42b last (not having electric current to flow) that is one another in series and connects from power supply feeding unit 71a variohm 73.Equate if the resistance value of paired resistance heater 42a, 42b is closer to each other, then also closer to each other the equating of heat that generates by paired resistance heater 42a, 42b.

Shown in Figure 16 A, in a chip 27, the heat that generates by paired resistance heater 42a, 42b is closer to each other equal, generate the time of ink bubble B1, B2, be approaching equating of bubble rise time, and on paired resistance heater 42a, 42b, form air filled cavity B1, B2 near equal volume.Therefore, the spray angle of printing ink 2 is near the major surfaces perpendicular to recording sheet P, so that ink droplet just in time sprays from nozzle 44a downwards.

If as shown in figure 15, utilize injection controller 63, switching element 72b connects being connected between the paired resistance heater 42a of cross-over connection, 42b and the variohm 73, connect switching element 72a and make switching element 72c ground connection, then shown in Figure 16 B, ink droplet i sprays towards the state that resistance heater 42a changes with ink droplet jet direction wherein along the width W of recording sheet P.That is to say, the switching element 72c that utilizes ground connection to connect, the current value that is fed to the pulsed current on the resistance heater 42a diminishes, and this depends on the resistance value of variohm 73.Therefore, on paired resistance heater 42a, 42b, form ink bubble B1, B2 less than the state of ink bubble B2, when resistance heater 42a changes, from nozzle 44a, spray ink droplet i with the spray angle of convenient printing ink 2 with the size of ink bubble B1 wherein.Utilize this injection controller 63, the current value that is fed to the pulsed current on the resistance heater 42b remains unchanged, and the current value that is fed to the pulsed current on the resistance heater 42a changes.

If in the case, the resistance value of variohm 73 is bigger, then less through the electric current that switching element 72c flows to ground from power supply feeding unit 71a, and be fed to the slippage of current value of the pulsed current on the resistance heater 42a from power supply feeding unit 71a less.Therefore, the difference that is fed to the pulsed current on paired resistance heater 42a, the 42b is little, the difference of the heat that generates between paired resistance heater 42a, 42b also diminishes, and is reference with jeting surface 27a, becomes big from the spray angle of the ink droplet i of nozzle 44a ejection.That is to say that the resistance value of variohm 73 is big more, when ink droplet i just in time sprays from nozzle 44a downwards, near more towards the saltation point of the printing ink 2 of resistance heater 42a ejection away from saltation point D.If it is opposite, the resistance value of variohm 73 is little, the difference that is fed to the pulsed current on paired resistance heater 42a, the 42b is bigger, therefore the heat difference that is fed on paired resistance heater 42a, the 42b is also big more, with jeting surface 27a is reference, less from the spray angle of the ink droplet i of nozzle 44a ejection.That is to say that the resistance value of variohm 73 is more little, when ink droplet i just in time sprays from nozzle 44a downwards, far away more towards the saltation point of the printing ink 2 of resistance heater 42a ejection away from saltation point D.

In addition, utilize injection controller 63 as shown in figure 15, connection between the paired resistance heater 42a of switching element 72b connection cross-over connection, 42b and variohm 73, connect switching element 72a, and will connect under the situation that switching element 72c is connected to power supply feeding unit 71b, shown in Figure 16 C, from the beginning in the chip 27 the ink droplet i of ejection along the width of recording sheet P so that the ink jet direction spray towards the state that resistance heater 42b changes.That is to say, utilization is connected to the switching element 72c on the power supply feeding unit 71b, the current value that is fed to the pulsed current on the resistance heater 42a becomes big for the resistance value that keeps variohm 73, and on paired resistance heater 42a, 42b so that wherein the volume of ink bubble B2 forms ink bubble B1, B2 less than the state of the volume of ink bubble B1, when resistance heater 42b changes, from nozzle 44a, spray ink droplet i with the spray angle of convenient printing ink 2 basically obliquely.In a chip, under the situation that switching element 72c ground connection connects, the heated condition of paired resistance heater 42a, 42b overturns from this state.

If in the case, the resistance value of variohm 73 is bigger, then except from power supply feeding unit 71a, also the pulsed current that is fed on the resistance heater 42a from power supply feeding unit 71b diminishes, so that it is less to be fed to the difference of the pulsed current on paired resistance heater 42a, the 42b, the difference of the heat that generates between paired resistance heater 42a, 42b is also little, is reference with jeting surface 27a, becomes big from the spray angle of the ink droplet i of nozzle 44a ejection.That is to say that the resistance value of variohm 73 is big more, when ink droplet i just in time sprays from nozzle 44a downwards, near more towards the saltation point of the ink droplet i of resistance heater 42b ejection away from saltation point D.If the resistance value of variohm 73 is less, then except from power supply feeding unit 71a, also the pulsed current that is fed on the resistance heater 42a from power supply feeding unit 71b is bigger, become big so that be fed to the difference of the pulsed current on paired resistance heater 42a, the 42b, the difference of the heat that generates between paired resistance heater 42a, 42b also becomes big, and with jeting surface 27a is reference, diminishes from the spray angle of the ink droplet i of nozzle 44a ejection.That is to say that the resistance value of variohm 73 is more little, when ink droplet i just in time sprays from nozzle 44a downwards, far away more towards the saltation point of the ink droplet i of resistance heater 42b ejection away from saltation point D.

In such a way, can utilize injection controller 63, change switching element 72a, 72b, 72c, to change the resistance value of variohm 73, and variation is along the orientation of paired resistance heater 42a, 42b, the direction of promptly spraying ink droplet i along the width of recording sheet P from nozzle 44a.

Although the numerical value by control variohm 73 is regulated the current value that is fed to the electric current on the resistance heater 42a, also can regulate the current value that is fed to the electric current on the resistance heater 42b by this configuration that power supply feeding unit 71a wherein is connected on the resistance heater 42b.

Alarm unit 64 as shown in figure 14 is a kind of display equipments, as LCD (liquid-crystal display) with show that the residual quantity with printing conditions, print state or printing ink 2 is the information of representative.Alarm unit 64 can be an audio output device also, as speaker.Alarm unit 64 also can comprise display equipment and audio output device these two.Also can send warning by the watch-dog or the loud speaker of information processing device 69.

The residual quantity that I/O terminal 65 transmits with printing conditions, print state or printing ink 2 through the interface of external message handler spare 69 is the above-mentioned information of representative.For example supply I/O terminals 65 control signals to export above-mentioned information, as the residual quantity of printing conditions, print state or printing ink 2 from external message handler spare 69.Information processing device 69 is electron devices, as Personal Computer or PDA (personal digital assistance).

The I/O terminal 65 that links to each other with information processing device 69 can be used as interface, series connection interface or parallel interface, and is suitable for standardized component, as USB (USB), RS (proposed standard part) 232C or IEEE (electronics and electric works association) 1394.I/O terminal 65 can have with the data of wired or wireless communication and information processing device 69 intercommunications.The standardized component of radio communication can exemplify IEEE802.11a, 802.11b and 802.11g.

Between I/O terminal 65 and information processing device 69, can insert network, as the Internet.In the case, I/O terminal 65 and Internet are as LAN (local area network), ISDN (ISDN (Integrated Services Digital Network)), xDSL (digital subscriber line), FHP (Fiber to the home), CATV (collective antenna TV) or BS (satellite broadcasting) interconnection.Data corresponding is with variety of protocol, as TCP/IP (transmission control protocol/Internet Protocol).

ROM 66 is a kind of storeies, and as EP-ROM (erasable programmable read only memory (EPROM)), it has stored the various handling procedures of carrying out by controller 68 within it.The program of these storages is loaded on the RAM 67 by controller 68.RAM 67 holds the print apparatus 1 of various states and passes through controller 68 read routine from ROM 66.

Controller 68 control is based on from the print data of I/O terminal 65 or based on the various parts from the data of the residual ink amount input of a box 3.Based on input control signal, controller 68 is read the handling procedure of the various assemblies of control from ROM 66, and stores the handling procedure of so reading, and carries out control or processing to various assemblies.

In above-described pilot circuit 61, handling procedure is stored among the ROM 66.Yet the storage medium of handling procedure is not limited to ROM 66, also can be to have the various recording mediums of the handling procedure of record thereon, as CD, disk, magneto-optic disk or IC-card.In the case, structure pilot circuit 61 is so that it is connected to or directly or with information processing device 69 promotes to read handling procedure on the driving mechanism of various recording mediums from these recording mediums.

Refer now to the printing of the print apparatus 1 that flowchart text shown in Figure 17 makes as mentioned above.Simultaneously, based at storage facilities,, carry out printing of the present invention by operating with the processing of the CPU that in controller 68, provides (center processing unit) (not shown) as the handling procedure that stores among the ROM66.

At first, the user sends instruction by the operation on the operating panel of the main unit that for example is provided to printer 4, so that print apparatus 1 prints operation.Then, in step S1, controller 68 provides the judgement whether print cartridge 11 about predetermined color has been loaded on each load units 22.If the print cartridge 11 of predetermined color is loaded on each load units 22 rightly, then controller 68 proceeds to step S2.Otherwise controller proceeds to step S4, stops printing.

Then, in step S2, whether the content of the printing ink 2 of controller 68 checks in connection portion 26 is equal to or less than predetermined amount, that is to say whether have printing ink in connection portion 26.If check not have printing ink, then alarm unit 64 sends corresponding warning, and in step S4, stops printing.If the content of the printing ink 2 in the connection portion that is to say greater than predetermined amount, be filled with printing ink 2 as if the connection portion, then the printing among the controller 68 permission step S3.

In printing, controller 68 causes that printer driver unit 62 drives

driver element

53,54, makes recording sheet P move to printable position.Specifically, controller 68 advances the CD-ROM drive motor that forms skull opening/closing device 53, and skull 28 is moved towards carriage 55a with respect to a box 3, and the result exposes the nozzle 44a of a chip 27, as shown in figure 18.Controller 68 advances the CD-ROM drive motor that forms sheet material supply/discharger 54, causes that recording sheet P moves.Specifically, controller 68 plays the effect of control, so that recording sheet P is released from carriage 55a by sheet material feed roller 81, the recording sheet P that so is pushed out is transported on the twist rollers 83 through pair of separated roller 82a, the 82b of rotation in the opposite direction, makes its throughput direction upset.Then recording sheet is transported to conveying belt 84a and upward and by maintenance equipment 85 is held in a predetermined position the place, to set the deposition position of printing ink 2.

When validation record sheet material P remained on its print position place, from the beginning controller 68 control injection controllers 63 sprayed ink droplet i to recording sheet P in the nozzle 44a place of chip 27.More particularly, when shown in Figure 16 A, when just in time spraying ink droplet i downwards from nozzle 44a basically, control injection controller 63 is so that substantially the same pulsed current is supplied on paired resistor 42a, the 42b.When shown in Figure 16 B, from nozzle 44a with when another injection direction ejection ink droplet i of resistance heater 42a, controller 68 control injection controllers 63 are so that the current value that is fed to the pulsed current on the resistance heater 42a is less than the current value that is fed to the pulsed current on the resistance heater 42b.

When shown in Figure 16 C, with different directions, promptly towards the direction of resistance heater 42b, from nozzle during the ejection ink droplet, controller 68 plays control action kou, so that the current value that is fed to the pulsed current on the resistance heater 42a is greater than the current value that is fed to the pulsed current on the resistance heater 42b.When ejection ink droplet i from nozzle 44a, add in the black sap cavity chamber 45 from printing ink conduit 46 immediately with the printing ink 2 of the ink droplet quantity same amount of ejection, to recover initial state, shown in Fig. 6 B.When from the beginning spraying ink droplet i in the chip 27, and when the negative pressure of the printing ink 2 in the 34b of ink chamber of ink export 34c that is separated by opening portion 34d raises, under the negative pressure of printing ink 2, normal atmosphere lifts baffle plate 34, and the bias voltage that heads on biased element 34f lifts valve 34e and valve shaft 34h together., be opened, so that printing ink 2 supplies from ink inlet 34a towards ink export 34c, to replenish the printing ink 2 in the printing ink conduit 46 that enters a chip 27 at the ink inlet 34a of the 34b of ink chamber and the opening 34d between the ink export 34c this moment.The negative pressure of printing ink 2 descends and under recuperability, baffle plate 34 recovers its original shape, and under the bias voltage of biased element 34f, valve 34e descends with valve shaft 34h.Each negative pressure when printing ink 2 raises, and when spraying ink droplet i, repeats above-mentioned described working order in valve system 34.

In such a way, be equivalent to the letters/symbols or the image of print data, be printed on according to the order of sequence on the recording sheet P that moves by sheet material supply/discharger 54.The recording sheet P that has finished printing discharges through sheet material relief outlet 56 by sheet material supply/discharger 54.

About above-described print apparatus 1, in print cartridge 11, comprise the printing ink 2 that contains nonionogenic tenside at least, itself contains the organic compound shown in the above-described chemical formula again described nonionogenic tenside, and this printing ink 2 is ejected on the recording sheet P through nozzle 44a as ink droplet i.2 couples of recording sheet P of printing ink demonstrate excellent wettability, and along the thickness direction infiltration of recording sheet P, so that can make high-quality printing under the situation that the saltation point of sedimentary ink droplet i does not ooze out.For example, if plain paper is used as recording sheet P as copy paper, bonding paper or report with paper, then can suppress the fiber direction flushing of sedimentary ink droplet i along plain paper.

In addition, utilize the printing ink 2 that wherein recording sheet P is demonstrated excellent wettability, spray through nozzle 44a as ink droplet i, the print apparatus of on recording sheet P, printing of the present invention 1, the ink droplet i of fast deposition penetrates in the recording sheet P and is dry on the spot, even result's wiping has deposited the sheet material part of ink droplet i thereon, there is not the fog danger of deterioration picture quality of the saltation point of drop i yet.

Utilize the printing ink 2 wherein contain tensio-active agent at least to be stored in print apparatus of the present invention 1 in the print cartridge 11, itself contains the organic compound that above-described Chemical formula 1 is represented again wherein said tensio-active agent, this printing ink is supplied in the black sap cavity chamber 45, suppresses to form in the printing ink 2 of bubble in black sap cavity chamber 45 except ink bubble B1, B2.Therefore, utilize print apparatus 1 of the present invention, do not have following danger: generation bubble obstruction printing ink is fed on the resistance heater or sprays printing ink from nozzle in the indoor printing ink of black sap cavity, thereby sprays ink droplet i best from nozzle 44a.

Utilize the printing ink 2 that wherein is fed in the black sap cavity chamber 45 not only to recording sheet P, and inner circumferential surface, paired resistance heater 42a, 42b and the nozzle 44a of black sap cavity chamber 45 demonstrated the print apparatus of the present invention 1 of excellent wettability, in case when ink droplet i sprayed from nozzle 44a, printing ink 2 can be by fast supply on paired resistance heater 42a, 42b.Therefore, utilize print apparatus 1 of the present invention, when ink droplet i sprayed from nozzle 44a at every turn, printing ink 2 can be by fast supply on paired resistance heater 42a, 42b, so that even in short interval, spray under the situation of ink droplet i, ink droplet i can spray from nozzle 44a best.That is to say, utilize print apparatus 1 of the present invention, even adopting frequency is 1kHz or higher, preferred 3kHz or higher, more preferably 5kHz or higher pulsed current drive paired resistance heater 42a, 42b, to increase print speed, also can spray ink droplet i best, realize high-quality printing, for each ink jet incident, ink droplet i can be sprayed best, to realize the printing of high image quality from nozzle 44a.

(the cloud point order of magnitude of this tensio-active agent is 80 ℃ to utilize the printing ink 2 wherein be stored in the print cartridge 11 to contain the tensio-active agent of the organic compound that Chemical formula 1 represents at least, the cloud point that is higher than conventional tensio-active agent) print apparatus of the present invention 1 can prevent that the physicals that cloud point because of tensio-active agent surpasses the printing ink 2 that the temperature of paired resistance heater 42a, 42b heating printing ink 2 causes from changing.Therefore, utilize print apparatus 1 of the present invention, do not exist by the temperature of the printing ink 2 black sap cavity chamber 45 in of print cartridge 11 supply easily above the danger of the cloud point of tensio-active agent, thereby the stable physical property of printing ink 2, the result can keep the wettability of inner circumferential surface, paired resistance heater 42a, 42b or the nozzle 44a of 2 pairs of black sap cavities of printing ink chamber 45, and ink droplet i sprays from nozzle 44a best.

Utilize print apparatus 1 of the present invention, the stable physical property of the printing ink 2 in a chip 27, with 2 pairs in printing ink for example the wettability of nozzle 44a maintain under the optimum, the driving of the paired resistance heater 42a of may command, 42b, to change the direction of ink jet, prevent the variation of the angle generation of injection ink droplet i from nozzle 44a, from nozzle 44a, spray ink droplet i with required spray angle.

In above stated specification, paired resistance heater 42a, 42b arrange shoulder to shoulder along the width of recording sheet P.The present invention is not limited to this structure, for example can for example use in the chip shown in Figure 19 A-19C 91,101,111, and condition is the current value of the pulsed current on being fed to a plurality of pressure generation elements when changing, but the injection direction Be Controlled of ink droplet i.Simultaneously, utilize a chip 91, paired resistance heater 42a, 42b arrange shoulder to shoulder along the traffic direction of recording sheet P.Utilize a chip 101, three resistance heater 103a, 103b, 103c to be arranged in the black sap cavity chamber 102, four resistance heater 113a, 113b, 113c and 113d are arranged in the black sap cavity chamber 112.In Figure 19, the position of the nozzle 93,104,114 in a chip 91,101,111 dots.In a chip 101,111, provide resistance heater 103c in printing ink conduit side, prevent wherein when the ink bubble that generates in black sap cavity chamber 102,112 is broken, the pressure that sprays ink droplet i through nozzle 104,114 is lower than in side wall side in printing ink conduit side, make ink droplet with wherein from the direction of printing ink conduit supply printing ink 2, promptly opposite basically with the direction shown in the arrow F of Figure 19 A-19C direction is sprayed this situation.

In above stated specification, suppose that a chip 27 is furnished with the many to resistance heater 42a, 42b of a greater number.Yet the present invention is not limited to this structure, also can use wherein on the chip 121, only provides a resistance heater 122 towards nozzle 123, as shown in figure 20 in described chip 121.In the case, a chip 121 is just in time downward basically, promptly to be substantially perpendicular to the direction ejection ink droplet i of recording sheet P.In Figure 20, the position of the nozzle 123 in a chip 121 dots once more.

In the above description, suppose that a box 3 of print apparatus 1 can unload from the main unit of printer 4, from the beginning print cartridge 11 unloads in the box 3.Yet, on the main unit that the present invention can use printer 4 wherein and a box 3 incorporate print apparatus.

In aforesaid structure, use wherein when heating printing ink the electric heating transformation system that printing ink 2 sprays from nozzle 44a by paired resistance heater 42a, 42b.This only exemplifies, and also can use and wherein pass through the electromechanical umformer, as piezoelectric element, the electromechanical transformation system of electromechanical ground ejection printing ink from nozzle.

In addition, in above-described structure, print apparatus 1 is a line-at-a-time printer.Yet this also is to exemplify simply, so that the present invention can use on the placed in-line ink-jet printer device that ink head wherein moves with the direction that is substantially perpendicular to the recording sheet direct of travel.In the case, in a chip of placed in-line ink-jet printer device, provide a fairly large number of pressure to generate device.

Embodiment

Illustrate that below wherein actual fabrication printing ink is as some embodiment, Comparative Examples and the reference example of recording liquid of the present invention.

Embodiment 1

In embodiment 1, be mixed together 3 weight part C.I. directly yellow 86 as the dyestuff that serves as tinting material, 70 weight parts waters as solvent, 5 weight part glycerine, 10 weight part ethylene glycol and 10 weight part diethylene glycol monobutyl ethers nonionogenic tenside as other solvent and the following chemical formula of 2 weight parts:

Wherein m and n are not less than 1 integer, and total addition amount (m+n) of oxyethane (being designated hereinafter simply as EO) equals 2, the manufacture of ink precursor.As the tensio-active agent that contains the organic compound shown in the general formula 1, use the NEXCOAT (by NIKKO CHEMICALSCo., Ltd. makes) of oxyethane addition quantitative changeization.

Under 60 ℃ state of heating, stirred the printing ink precursor that obtains with above-mentioned composition 4 hours.After stirring, when printing ink precursor mesh size is 0.8 micron membrane filter (being made by ADVANTEC Inc.) pressurization, forced filtration printing ink precursor, preparation printing ink.

Embodiment 2

In embodiment 2, be mixed together 4 weight part C.I. sun blue 199 are similar to the Chemical formula 1 of embodiment 1 as other solvent and 2 weight parts as solvent, 10 weight part ethylene glycol, 10 weight part ethylene glycol and 10 weight part triglycols as the dyestuff that serves as tinting material, 65 weight parts waters the nonionogenic tenside of organic compound, wherein total addition amount (m+n) of EO equals 2, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Embodiment 3

In embodiment 3, be mixed together 3 weight part C.I. Xylene Reds 52 are similar to the Chemical formula 1 of embodiment 1 as other solvent and 0.1 weight part as solvent, 10 weight part triglycol monobutyl ethers, 5 weight part 2-Pyrrolidones and 10 weight part glycerine as the dyestuff that serves as tinting material, 70.9 weight parts waters the nonionogenic tenside of organic compound, wherein total addition amount (m+n) of EO equals 4, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Embodiment 4

In embodiment 4, be mixed together 4 weight part C.I. and directly black 154 be similar to the nonionogenic tenside of organic compound of the Chemical formula 1 of embodiment 1 as other solvent and 0.05 weight part as solvent, 5 weight part ethylene glycol, 5 weight part ethylene glycol and 10 weight part glycerine as the dyestuff that serves as tinting material, 75.95 weight parts waters, wherein total addition amount (m+n) of EO equals 4, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Embodiment 5

In embodiment 5, be mixed together directly black 168 conducts of 3 weight part C.I. and serve as the dyestuff of tinting material, 76.9 weight parts waters as solvent, 5 weight parts 1,2-propylene glycol, 5 weight part 2-Pyrrolidones and 10 weight part glycerine are similar to the nonionogenic tenside of organic compound of the Chemical formula 1 of embodiment 1 as other solvent and 0.1 weight part, wherein total addition amount (m+n) of EO equals 4, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Embodiment 6

In embodiment 6, be mixed together 3 weight part C.I. and directly yellow 132 be similar to the nonionogenic tenside of organic compound of the Chemical formula 1 of embodiment 1 as other solvent and 2 weight parts as solvent, 10 weight part glycol ethers, 10 weight part Tetraglycol 99s and 0.5 weight part trolamine as the dyestuff that serves as tinting material, 74.5 weight parts waters, wherein total addition amount (m+n) of EO equals 4, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Embodiment 7

In embodiment 7, be mixed together 3 weight part C.I Xylene Reds 289 are similar to the Chemical formula 1 of embodiment 1 as other solvent and 5 weight parts as solvent, 100 weight part ethylene glycol, 20 weight part ethylene glycol and 10 weight part glycerine as the dyestuff that serves as tinting material, 52 weight parts waters the nonionogenic tenside of organic compound, wherein total addition amount (m+n) of EO equals 7, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Comparative Examples 1

In Comparative Examples 1, be mixed together 4 weight part C.I sun blue 199 as the dyestuff that serves as tinting material, 65 weight parts waters as solvent, 10 weight part ethylene glycol, 10 weight part glycol ethers and 10 weight part triglycols as other solvent and 1 weight part polyoxyethylene nonylplenyl ether as tensio-active agent (by NIKKO CHEMICALS Co., Ltd. make (trade(brand)name: NP10)), with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Comparative Examples 2

In Comparative Examples 2, be mixed together directly black 168 conducts of 3 weight part C.I and serve as the dyestuff of tinting material, 76.9 weight parts waters as solvent, 5 weight parts 1,2-propylene glycol, 5 weight part 2-Pyrrolidones and 10 weight part glycerine as other solvent and 0.1 weight part polyoxyethylene nonylplenyl ether as tensio-active agent (by NIKKO CHEMICALS Co., Ltd. make (trade(brand)name: NP7.5)), with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Comparative Examples 3

In Comparative Examples 3, be mixed together 3 weight part C.I Xylene Reds 52 as the dyestuff that serves as tinting material, 71 weight parts waters as solvent, 10 weight part triglycol monobutyl ethers, 5 weight part 2-Pyrrolidones and 10 weight part glycerine as other solvent and 1 weight part polyoxyethylene tridecyl alcohol ether as tensio-active agent (by NIPPON YUSHI Co., Ltd. make (trade(brand)name: Dispanol TOC)), with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Comparative Examples 4

In Comparative Examples 4, be mixed together 3 weight part C.I directly yellow 132 as the dyestuff that serves as tinting material, 74.5 weight parts waters as solvent, 10 weight part glycol ethers, 10 weight part Tetraglycol 99s and 0.5 weight part trolamine as other solvent and 2 weight part polyoxyethylene oleyl ethers as tensio-active agent (by NIKKO CHEMICALS Co., Ltd. make (trade(brand)name: Nonion E-215)), with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Comparative Examples 5

In Comparative Examples 5, be mixed together 3 weight part C.I Xylene Reds 289 as the dyestuff that serves as tinting material, 52 weight parts waters as solvent, 10 weight part ethylene glycol, 20 weight part glycol ethers, 10 weight part glycerine as other solvent and 5 weight part polyoxyethylene nonylplenyl ethers as tensio-active agent (by NIKKO CHEMICALS Co., Ltd. make (trade(brand)name: NP10)), with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Comparative Examples 6

In Comparative Examples 6, be mixed together 4 weight part C.I directly black 154 as the dyestuff that serves as tinting material, 75.95 weight parts waters as solvent, 5 weight part ethylene glycol, 5 weight part glycol ethers and 10 weight part glycerine as other solvent and 0.05 weight part Voranol EP 2001 as tensio-active agent (by NIKKO CHEMICALS Co., Ltd. make (trade(brand)name: BT9)), with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 1, different is to use this printing ink precursor.

Reference example

In this reference example, prepare printing ink in the mode identical with embodiment 1, different is to use the Co. by NISSHIN KAGAKU, and the acetylenediol that Ltd. makes is as tensio-active agent.

Measure the embodiment of the above preparation and the surface tension and the viscosity of Comparative Examples.Use the automatic surface tensiometer (to make (model name: CBPV-Z)) surface tension by KYOWA KAIMEN KAGAKU-SHA, and use viscometer (to make (model name: VM-100A)) by KYOWA KAIMEN KAGAKU-SHA and measure viscosity.

Following table 1 shows the measuring result of surface tension and viscosity in embodiment and the Comparative Examples.

Table 1

	Surface tension (mN/m)	Viscosity (mPa.s)
	Surface tension (mN/m)	Viscosity (mPa.s)	Embodiment 1	?34.9	?3.66
Embodiment 2	?41.4	?3.50	Embodiment 1	?34.9	?3.66
Embodiment 2	?41.4	?3.50	Embodiment 3	?35.4	?3.00
Embodiment 4	?46.1	?2.37	Embodiment 3	?35.4	?3.00
Embodiment 4	?46.1	?2.37	Embodiment 5	?47.6	?2.67
Embodiment 6	?37.2	?2.76	Embodiment 5	?47.6	?2.67
Embodiment 6	?37.2	?2.76	Embodiment 7	?37.2	?5.83
Comparative Examples 1	?32.1	?3.48	Embodiment 7	?37.2	?5.83
Comparative Examples 1	?32.1	?3.48	Comparative Examples 2	?36.3	?2.50
Comparative Examples 3	?31.5	?3.03	Comparative Examples 2	?36.3	?2.50
Comparative Examples 3	?31.5	?3.03	Comparative Examples 4	?40.5	?2.92
Comparative Examples 5	?31.2	?6.55	Comparative Examples 4	?40.5	?2.92
Comparative Examples 5	?31.2	?6.55	Comparative Examples 6	?47.3	?2.33

Can find out that according to the result shown in the table 1 in embodiment and Comparative Examples, the surface tension scope is between 31mN/m to 48mN/m, and range of viscosities is between 2mPa.s to 7mPa.s, surface tension of the two and viscosity do not have significant difference.

For each embodiment, Comparative Examples and reference example, use is furnished with the chip (diameter of each nozzle is 20 microns) with 24 nozzles, ink-jet printer with a pair of resistance heater (resistance value of each is 135 ohm), chip drives with the driving voltage of 11V, the letter of letter punch sequence list or Print All (solids (solid) printing) in carrier such as recycled paper (by HONSHUU-SEISHI Co., Ltd. on predetermined area manufacturing), or in upward printing of bonding paper (making by MEADInc.).Replying the aspect evaluation with regard to fixing, the rate response of letter punch, printing ink and spray angle then prints.

Following table 2 shows fixing, the rate response of letter punch quality, printing ink in embodiment, Comparative Examples and the reference example and the evaluation result that spray angle is replied.

Table 2

	The print quality of letters/symbols	Fixing of printing ink	Rate response			Spray angle is replied
			Rate response			Spray angle is replied		1kHz	?3kHz	?10kHz	20 μ m drift	30 μ m drift
			Embodiment					1kHz	?3kHz	?10kHz	20 μ m drift	30 μ m drift
1	○	◎	Embodiment	◎	◎	◎	◎	◎
1	○	◎	Embodiment 2	◎	◎	◎	◎	◎	○	◎	◎	◎	◎	◎	◎
Embodiment 3	○	◎	Embodiment 2	◎	◎	◎	◎	◎	○	◎	◎	◎	◎	◎	◎
Embodiment 3	○	◎	Embodiment 4	◎	◎	◎	◎	◎	○	○	◎	◎	◎	◎	◎
Embodiment 5	○	○	Embodiment 4	◎	◎	◎	◎	◎	○	○	◎	◎	◎	◎	◎
Embodiment 5	○	○	Embodiment 6	◎	◎	◎	◎	◎	○	◎	◎	◎	◎	◎	◎
Embodiment 7	○	◎	Embodiment 6	◎	◎	◎	◎	◎	○	◎	◎	◎	◎	◎	◎
Embodiment 7	○	◎	Comparative Examples 1	◎	◎	◎	◎	◎	△	△	△	×	×	×	×
Comparative Examples 2	△	△	Comparative Examples 1	△	×	×	△	×	△	△	△	×	×	×	×
Comparative Examples 2	△	△	Comparative Examples 3	△	×	×	△	×	×	△	×	×	×	×	×
Comparative Examples 4	×	×	Comparative Examples 3	×	×	×	△	×	×	△	×	×	×	×	×
Comparative Examples 4	×	×	Comparative Examples 5	×	×	×	△	×	×	○	△	×	×	×	×
Comparative Examples 6	×	×	Comparative Examples 5	△	×	×	×	×	×	○	△	×	×	×	×
Comparative Examples 6	×	×	Reference example	△	×	×	×	×	○ ?	◎ ?	◎ ?	◎ ?	◎ ?	◎ ?	◎ ?

About the quality of letter punch, the letter printed on above-mentioned three class paper of detecting by an unaided eye is for evaluation.In table 2, use circular mark to represent not observe fuzzy, use the △ mark to represent to observe fuzzy, but letter can discern, the letter that applying marking * expression is printed blurs the degree that can not be identified to it.

In the printing ink fixed is estimated, use Co. by TOYO KAGAKU SANGYO, Ltd. (trade(brand)name: the No.5C) letter printed on the PPC sheet material of being made by XEROC Inc. of wiping, it is possible fuzzy for evaluation on letter punch to detect by an unaided eye for the filter paper of Zhi Zaoing.In the fixing evaluation of printing ink in table 2, use the Double Circle label table to be shown in and occur in 5 seconds bluring, use circular label table to be shown in and occur in 10 seconds bluring, use the △ label table to be shown in and occur in 15 seconds bluring, use * label table is shown in and occurs in 30 seconds bluring.

In order to estimate rate response, for above-mentioned three class paper, under the frequency of 1kHz, 3kHz and 10kHz, to carry out the printing and the solids of letters/symbols and print, may there be the print position of fuzzy or hole (position that does not wherein have depositing droplets) in visual inspection.In order to estimate the rate response in last table 2, with the Double Circle mark represent fuzzy and hole these two all do not exist, represent only in solids are printed, to exist fuzzy with circular mark, only represent to exist fuzzy and hole with the △ mark in solids are printed, letter is printed and solids are printed in these two existence and blured and hole with mark * be illustrated in.When supplied frequency was the driving voltage of 1kHz, 3kHz or 5kHz, a chip was driven with the injection interval of 1000 times, 3000 times and 10000 times injection ink droplets of per second respectively.

Reply in order to estimate spray angle, letter punch/symbol on above-mentioned three class paper, for changing when the ink jet angle, when making 20 microns of the mid point drifts of the ink dot by just in time spraying 40 microns of diameters that ink droplet forms downwards from nozzle, spray the situation of ink droplet, wherein when the variation of ink jet angle, when making 30 microns of the mid point drifts of ink dot, spray the situation of ink droplet, letter punch/symbol on above-mentioned three class paper, naked eyes are estimated the fuzzy or hole that may exist that observation causes because of the drift of saltation point.In table 2, estimate spray angle and reply, represent for each frequency with the Double Circle mark, in printing, letters/symbols do not have fuzzy or hole, represent to exist fuzzy with circular mark, represent to exist hole with the △ mark, with * mark represent to exist blur with hole these two.

Can find out according to the evaluation result shown in the table 2, the embodiment 1-7 (itself contains the organic compound shown in the Chemical formula 1 again this tensio-active agent) that contains nonionogenic tenside is at the Comparative Examples 1-6 that significantly is not different from the ether surface active agent (it has the structure similar with this nonionogenic tenside) that uses the EO modification aspect surface tension or the viscosity, but at fixing, the rate response of the quality of letter punch, printing ink aspect all, and aspect spray angle replys, all be better than the latter, thereby obtain the evaluation result that advantageously matches in excellence or beauty with reference example.

In embodiment 1-7, owing to contain the nonionogenic tenside that contains the compound shown in the Chemical formula 1 at least, therefore can optimize, as the wettability of PPC paper, recycled paper or bonding paper with respect to recording paper.Therefore, in embodiment 1-7, can carry out the printing of high image quality letters/symbols, not blur or ooze out.

In addition, about these embodiment, because just after ink droplet i sprays from nozzle, printing ink is fed to rapidly on the resistance heater, therefore ink droplet i can spray from nozzle rapidly, even injection interval shortens, injection events also can be supplied ink droplet i best each time, thereby the high quality of realizing letters/symbols is printed and solids are printed, not fuzzy or hole.

In addition, in each embodiment, because even proof has excellent wettability near the nozzle in a chip, therefore the driving of the paired resistance heater of may command and suppress each time injection events from the spray angle of the ink droplet i of nozzle ejection, thereby the high quality of realizing letters/symbols is printed, not fuzzy or hole.

On the other hand, in the Comparative Examples 1-6 of the ether surface active agent (it contains the organic compound shown in the Chemical formula 1) that uses the EO modification, compare with the printing ink of embodiment, printing ink only has poor wettability to recording sheet P, when ink droplet i is deposited on the recording sheet, do not have rapid drying, printing ink suffers fuzzy or oozes out, thereby reduced print quality.

In addition, the wettability of the correct chip of the printing ink of Comparative Examples is lower, makes to be difficult to printing ink is fed on the resistance heater rapidly after ink droplet i sprays from nozzle.That is to say, utilize Comparative Examples, when injection interval shortens, that is to say, when the frequency gets higher of driving voltage, injection events is difficult to supply ink droplet further from nozzle each time, consequently produces fuzzy or hole, thereby reduces print quality.

In addition,,, therefore, control the driving of paired resistance heater,, change so that from nozzle, spray the angle of ink droplet to change injection direction because near the wettability the nozzle in the correct chip of printing ink is worse than embodiment about Comparative Examples.Therefore, in each Comparative Examples, when in the drops out from nozzles during with the ejection of variable injection direction, the variation of ink jet angle taking place in spray angle, thereby produce fuzzy or hole, has reduced print quality.

Find out by above, in the preparation of printing ink, add the nonionogenic tenside that contains the organic compound shown in the Chemical formula 1, the print quality excellence that fixing, the rate response of the letters/symbols of the printing ink of being produced, printing ink and spray angle are replied, that is to say that the printing ink of being produced has the performance of the printing ink that is equivalent to or is higher than reference example.

Embodiment 8

Next embodiment 8 is described.

Except adding tinting material, solvent and tensio-active agent, also be not higher than the glycol ether that 0.1mmHg and surface tension are not higher than 35mN/m by being added on vapour pressure under 20 ℃, further improve the wettability of 2 couples of recording sheet P of printing ink of embodiment 1-7.This glycol ether can exemplify for example diethylene glycol monobutyl ether, triethylene glycol monomethyl ether and triglycol monobutyl ether.

Because the surface tension of glycol ether is not more than 35mN/m, therefore can be at any time, as before or after the ink jet 2 or after printing ink 2 is deposited on the recording sheet P, the surface tension that suppresses printing ink 2 is to lower numerical value.That is to say that with the printing ink 2 that contains glycol ether, the static surface tension of printing ink 2 and dynamic surface tension are thought near the numerical value that equates, to suppress surface tension to low numerical value.Therefore, at any time, in the time of for example in printing ink 2 is accommodated in black sap cavity chamber 45, when printing ink when spraying open interior or after printing ink has been deposited on the recording sheet P, also the surface tension of printing ink 2 can be maintained lower level.In addition, the fixed performance of printing ink is improved, even the result is when fiber is exposed on the major surfaces of recording paper P, also can be at common paper, and print on the sheet material of a series of scraps of paper that separate with paper, bonding paper or by perforation as copy paper, report.This has improved the quality of letter punch/symbol, perhaps so-called letters/symbols print quality.

If the surface tension of glycol ether is greater than 35mN/m, then the surface tension that can not suppress printing ink 2 is to lower numerical value, and becoming simultaneously is difficult to further improve wettability.Printing ink 2 does not have rapid osmotic to recording sheet P, but oozes out at the saltation point place of recording sheet P, consequently can not get the distinct image quality.

The vapour pressure of aforesaid glycol ether is not higher than 0.1mmHg.If vapour pressure is greater than 0.1mmHg, then glycol ether is easy to evaporation.If the glycol ether evaporation, then its content descends in printing ink 2, makes to be difficult to suppress the surface tension of printing ink 2 to low numerical value.Therefore, can not obtain in printing ink 2, to comprise the operation and the effect of glycol ether, make wettability descend.

Therefore, be not higher than the glycol ether that 0.1mmHg and surface tension are not more than 35mN/m by using 20 ℃ of following vapour pressures, with wherein only use the situation of tensio-active agent and compare, can improve printing ink 2, make stabilizability ink jet 2, improvement is to the wettability of recording sheet P, so that greater than having high picture quality and not containing hole or ooze out.

Based on the gross weight of printing ink 2, the content of glycol ether in printing ink 2 is not less than 1wt% and is not more than 20wt%.If based on the gross weight of printing ink 2, the content of glycol ether is less than 1wt%, and then the surface tension that can not suppress printing ink 2 is to lower numerical value, and the result can not realize competent wettability.

If based on the gross weight of printing ink 2, the content of glycol ether is greater than 20wt%, and then to the wettability height of the internal perisporium of nozzle 44a, the printing ink 2 that the result is included in the black sap cavity chamber 45 leaks into the outside along the internal perisporium of nozzle 44a.The result is that printing ink is too high to the wettability of recording sheet P, and results ink 2 is seeped into the reverse side of recording sheet P.

Therefore, with gross weight based on printing ink 2, the vapour pressure under 20 ℃ that packet content is not less than 1wt% and is not higher than 20wt% is not higher than the glycol ether that 0.1mmHg and surface tension are not more than 35mN/m, can realize competent wettability, with greater than distinct image.

If in printing ink 2, be mixed together tinting material such as water-soluble dye as dyestuff, perhaps various pigment, the solvent of toner within it is scattered here and there, the tensio-active agent that contains the organic compound shown in the Chemical formula 1, be not higher than the glycol ether that 0.1mmHg and surface tension are not more than 35mN/m with vapour pressure under 20 ℃, then surface tension reduces by glycol ether, and the result is based on the gross weight of printing ink 2, and the content range of tensio-active agent can be to be not less than 0.1wt% to being not more than 5wt%.

If based on the gross weight of printing ink 2, itself contain the tensio-active agent of the organic compound of general formula 1 expression again, its content then can not form the competent wettability of recording sheet P less than 0.1wt%.On the contrary, if based on the gross weight of printing ink 2, the content of tensio-active agent of organic compound that contains general formula 1 expression then occurs inexpediently bubbling in black sap cavity chamber 45, thereby hinders the stable injection of printing ink 2 greater than 10wt%.Therefore, contain the content of tensio-active agent of the organic compound of general formula 1 expression by setting,, then can be suppressed at the foaming in the black sap cavity chamber 45, and provide and suitably penetrate in the recording sheet P to being not less than 0.1wt% and being not more than 5wt%.

Except above-mentioned dyestuff, solvent or tensio-active agent, also viscosity modifier, surface tension modifier, pH regulator agent, antiseptic-germicide, rust-preventive agent or mould inhibitor can be joined in the printing ink 2.Specifically, viscosity modifier, surface tension modifier and pH regulator agent can exemplify protein, as gelatin or casein, natural rubber, as gum arabic, derivatived cellulose is as methylcellulose gum, carboxymethyl cellulose or Walocel MT 20.000PV, natural polymeric material, as sulfonated lignin or lac, polyacrylic ester, styrene acrylic copolymer, polyvinyl alcohol and Polyvinylpyrolidone (PVP).Can optionally add in these one or more.Antiseptic-germicide, rust-preventive agent and mould inhibitor can exemplify for example phenylformic acid, dichlorobenzene, Perchlorobenzene, Sorbic Acid, p-Hydroxybenzoate and ethylenediamine tetraacetic acid (EDTA) (EDTA).Can optionally use in these one or more.

The printing ink 2 that can form more than the preparation as described below: in preparation solution class printing ink 2, for example using, dyestuff mixes the tinting material, solvent and the tensio-active agent that are formed by above-mentioned dyestuff as tinting material together, be heated to 40-80 ℃, under this state, use for example screw rod, stir together and disperse.Under the situation of the dispersion liquid of printing ink 2, for example use pigment as tinting material, can use the micropigment dispersing method that uses up to now, for example ball mill, sand mill, masher, roller mill, agitator, Henschel mixer, colloidal mill, ultrasonic homogenizer, pearl shredder or wet shot shredder, by dispersed color in solvent and tensio-active agent, thus preparation printing ink.Use strainer at least once by filtering under pressure, and/or by filtration under diminished pressure, or use centrifuge separator at least once by centrifugation, thus process so printing ink 2 of preparation, to remove impurity, coarse particles or chip.

The above holds the printing ink 2 of the above preparation in the print cartridge shown in Fig. 2 and 3 11.

Illustrate that below actual fabrication wherein contains the embodiment 9-14 and the Comparative Examples 7-10 of the printing ink of the present invention of tinting material, solvent, tensio-active agent and glycol ether.

Embodiment 9

In embodiment 9, be mixed together 3wt%C.I. directly yellow 86 as the dyestuff that serves as tinting material, 75.9wt% water as solvent, 10wt% glycerine and 10wt% ethylene glycol as other solvent, 1wt% is that 0.1mmHg and surface tension are the nonionogenic tenside of the organic compound of the diethylene glycol monobutyl ether of 26mN/m and 0.1wt% Chemical formula 1 20 ℃ of following vapour pressures:

Wherein m and n are not less than 1 integer, and total addition amount (m+n) of EO equals 4, with the manufacture of ink precursor.Simultaneously, as the tensio-active agent of the organic compound that contains above-mentioned Chemical formula 1, the NEXCOAT (by NIKKO CHEMICALS Co., Ltd. makes) that uses oxyethane addition amount to change.

Under 60 ℃ state of heating, stirred the printing ink precursor that obtains with above-mentioned composition 4 hours.After stirring, when printing ink precursor mesh size is 0.8 micron membrane filter (being made by ADVANTEC Inc.) pressurization, forced filtration printing ink precursor.Prepare printing ink in this way.

Embodiment 10

In embodiment 10, be mixed together 3wt%C.I. directly yellow 86 as the dyestuff that serves as tinting material, 57.9wt% water as solvent, 10wt% ethylene glycol and 10wt% ethylene glycol as other solvent, 20wt% is that 0.1mmHg and surface tension are the nonionogenic tenside of the diethylene glycol monobutyl ether of 26mN/m as the organic compound of glycol ether and 0.1wt% Chemical formula 1 similar to Example 1 20 ℃ of following vapour pressures, wherein total addition amount (m+n) of EO equals 4, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 9, different is this printing ink precursor of preparation.

Embodiment 11

In embodiment 11, be mixed together 3wt%C.I. directly yellow 86 as the dyestuff that serves as tinting material, 75.9wt% water as solvent, 10wt% glycerine and 10wt% ethylene glycol as other solvent, 1wt% is that 0.1mmHg and surface tension are the nonionogenic tenside of the triglycol monobutyl ether of 27mN/m as the organic compound of glycol ether and 5.0wt% Chemical formula 1 similar to Example 1 20 ℃ of following vapour pressures, wherein total addition amount (m+n) of EO equals 2, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 9, different is this printing ink precursor of preparation.

Embodiment 12

In embodiment 12, be mixed together 3wt%C.I. directly yellow 86 as the dyestuff that serves as tinting material, 75.9wt% water as solvent, 10wt% glycerine, 10wt% ethylene glycol as other solvent, 1wt% is that 0.1mmHg and surface tension are the nonionogenic tenside of the triglycol monobutyl ether of 27mN/m as the organic compound of glycol ether and 0.1wt% Chemical formula 1 similar to Example 1 20 ℃ of following vapour pressures, wherein total addition amount (m+n) of EO equals 2, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 9, different is this printing ink precursor of preparation.

Embodiment 13

In embodiment 13, be mixed together 3wt%C.I. directly yellow 86 as the dyestuff that serves as tinting material, 57.9wt% water as solvent, 10wt% glycerine and 10wt% ethylene glycol as other solvent, 1wt% is that 0.1mmHg and surface tension are the nonionogenic tenside of the triglycol monobutyl ether of 27mN/m as the organic compound of glycol ether and 0.1wt% Chemical formula 1 similar to Example 1 20 ℃ of following vapour pressures, wherein total addition amount (m+n) of EO equals 2, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 9, different is this printing ink precursor of preparation.

Embodiment 14

In embodiment 14, be mixed together 3wt%C.I. directly yellow 86 as the dyestuff that serves as tinting material, 75.9wt% water as solvent, 10wt% glycerine and 10wt% ethylene glycol as other solvent, 1wt% is that 0.1mmHg and surface tension are the nonionogenic tenside of the triglycol monobutyl ether of 27mN/m as the organic compound of glycol ether and 5.0wt% Chemical formula 1 similar to Example 1 20 ℃ of following vapour pressures, wherein total addition amount (m+n) of EO equals 2, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 9, different is this printing ink precursor of preparation.

Comparative Examples 7

In Comparative Examples 7, be mixed together 3wt%C.I. directly yellow 86 as the dyestuff that serves as tinting material, 76.0wt% water as solvent, 10wt% glycerine and 10wt% ethylene glycol as other solvent, 1wt% is that 0.1mmHg and surface tension are that the triglycol monobutyl ether of 26mN/m is as glycol ether 20 ℃ of following vapour pressures, to produce the nonionogenic tenside of the organic compound do not contain Chemical formula 1 similar to Example 8, total addition amount (m+n) of EO printing ink precursor of equaling 4 wherein.Prepare printing ink in the mode identical with embodiment 9, different is this printing ink precursor of preparation.

Comparative Examples 8

In Comparative Examples 8, be mixed together 3wt%C.I. directly yellow 86 as the dyestuff that serves as tinting material, 51.9wt% water as solvent, 10wt% glycerine and 10wt% ethylene glycol as other solvent, 25wt% is that 0.1mmHg and surface tension are that the diethylene glycol monobutyl ether of 26mN/m is as glycol ether 20 ℃ of following vapour pressures, nonionogenic tenside with the organic compound of 0.1wt% Chemical formula 1 similar to Example 9, wherein total addition amount (m+n) of EO equals 4, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 9, different is this printing ink precursor of preparation.

Comparative Examples 9

In Comparative Examples 9, be mixed together 3wt%C.I. directly yellow 86 as the dyestuff that serves as tinting material, 77.0wt% water as solvent, 10wt% glycerine and 10wt% ethylene glycol as other solvent, the nonionogenic tenside of the organic compound of the Chemical formula 1 that 5wt% is similar to Example 8, wherein total addition amount (m+n) of EO equals 4, to produce the printing ink precursor that does not contain glycol ether.Prepare printing ink in the mode identical with embodiment 9, different is this printing ink precursor of preparation.

Comparative Examples 10

In Comparative Examples 10, be mixed together 3wt%C.I. directly yellow 86 as the dyestuff that serves as tinting material, 77.0wt% water as solvent, 10wt% glycerine and 10wt% ethylene glycol as other solvent, 20wt% is that 0.6mmHg and surface tension are that the ethylene glycol monobutyl ether of 24mN/m is as glycol ether 20 ℃ of following vapour pressures, nonionogenic tenside with the organic compound of 5.0wt% Chemical formula 1 similar to Example 12, wherein total addition amount (m+n) of EO equals 4, with the manufacture of ink precursor.Prepare printing ink in the mode identical with embodiment 9, different is this printing ink precursor of preparation.

For above-described each embodiment and Comparative Examples, driving voltage driving nozzle diameter with 11V is 20 microns, the resistance value of every pair of resistance heater is 135 ohm, the nozzle number of chip is a chip of 24 ink-jet printer device, the letter of letter punch sequence list and Print All (so-called solids printing) are by PPC sheet material (being made by XEROX Inc.), recycled paper is (by HONSHUU-SEISHI Co., Ltd. make) or the predetermined area of bonding paper (making) by MEAD Inc. on, and estimate the quality of letter punch, rate response and jetting stability.

Following table shows the evaluation result of quality, rate response and the jetting stability of letter punch.

Table 3

	Tensio-active agent shown in the chemical formula (1)			Glycol ether			The print quality of letters/symbols				Accuracy of spray
	Tensio-active agent shown in the chemical formula (1)			Glycol ether									M+n in the chemical formula (1)	Content (wt%)	Compound	Content (wt%)	Vapour pressure [mmHg]	Surface tension [mN/m]	1kHz ? ?	?3kHz ? ?	?10kHz ? ?
Embodiment 9	?4	?0.1	Diethylene glycol monobutyl ether	1	0.1	?26		○	◎	○			M+n in the chemical formula (1)	Content (wt%)	Compound	Content (wt%)	Vapour pressure [mmHg]	Surface tension [mN/m]	1kHz ? ?	?3kHz ? ?	?10kHz ? ?	○	○
Embodiment 9	?4	?0.1	Diethylene glycol monobutyl ether	1	0.1	?26	Embodiment 10	○	◎	○	?4	?0.1	Diethylene glycol monobutyl ether	20	0.1	?26	◎	◎	◎	◎	○	○	○
Embodiment 11	?2	?5.0	The triglycol monobutyl ether	1	Less than 0.1	?27	Embodiment 10	◎	◎	◎	?4	?0.1	Diethylene glycol monobutyl ether	20	0.1	?26	◎	◎	◎	◎	○	◎	○
Embodiment 11	?2	?5.0	The triglycol monobutyl ether	1	Less than 0.1	?27	Embodiment 12	◎	◎	◎	?2	?0.1	The triglycol monobutyl ether	1	Less than 0.1	?27	○	◎	○	○	○	◎	○
Embodiment 13	?2	?0.1	The triglycol monobutyl ether	20	Less than 0.1	?27	Embodiment 12	◎	◎	◎	?2	?0.1	The triglycol monobutyl ether	1	Less than 0.1	?27	○	◎	○	○	○	◎	○
Embodiment 13	?2	?0.1	The triglycol monobutyl ether	20	Less than 0.1	?27	Embodiment 14	◎	◎	◎	?2	?5.0	The triglycol monobutyl ether	1	Less than 0.1	?27	◎	◎	◎	◎	○	◎	○
Comparative Examples 7	?4	?0.0	Diethylene glycol monobutyl ether	1	0.1	?26	Embodiment 14	○	◎	○	?2	?5.0	The triglycol monobutyl ether	1	Less than 0.1	?27	◎	◎	◎	◎	○	×	○
Comparative Examples 7	?4	?0.0	Diethylene glycol monobutyl ether	1	0.1	?26	Comparative Examples 8	○	◎	○	?4	?0.1	The triglycol monobutyl ether	25	0.1	?26	△	◎	◎	◎	○	×	○
Comparative Examples 9	?4	?5.0	-	-	-	?-	Comparative Examples 8	◎	◎	○	?4	?0.1	The triglycol monobutyl ether	25	0.1	?26	△	◎	◎	◎	○	×	○
Comparative Examples 9	?4	?5.0	-	-	-	?-	Comparative Examples 10	◎	◎	○	?4	?5.0	The triglycol monobutyl ether	20	0.6	?24	◎	◎	◎	◎	×	×	○

Simultaneously, the quality of evaluation letter punch/symbol is by the letters/symbols of visual inspection on aforementioned three class paper.In table 3, in the quality of estimating the letters/symbols of printing, the Double Circle mark is represented not observe fuzzy, circular mark represents that the letters/symbols of printing experiences slight oozing out, but still can discern, mark △ represents to observe the letters/symbols experience of oozing out and printing and oozes out, and the letters/symbols experience that mark * expression is printed is oozed out the letters/symbols that feasible impossible identification is printed.

In order to estimate rate response, under the frequency of 1kHz, 3kHz and 10kHz, carry out letters/symbols printing and solids printing for above-mentioned three class paper, the visual inspection print position may exist fuzzy or hole (wherein ink droplet does not have sedimentary position thereon).In order to estimate the rate response in last table 2, with the Double Circle mark represent printing ink servo-actuated the best, letters/symbols print and solids print do not exist fuzzy in the two and hole these two and do not observe drift at saltation point, represent only in solids are printed, to exist fuzzy with circular mark, represent the drift of part saltation point and in solids are printed, have fuzzy and hole with mark △, but in printing, letters/symbols do not have fuzzy and hole, with * be illustrated in that letters/symbols is printed and solids are printed in the two existence and blured and hole.When supplied frequency was the driving voltage of 1kHz, 3kHz or 5kHz, a chip was driven with the injection interval of 1000 times, 3000 times and 10000 times injection ink droplets of per second respectively.

In estimating jetting stability, at room temperature, a box that holds the China ink jar that is filled with each printing ink is exposed to 1 week under the atmosphere, carries out on each of three class paper that letters/symbols is printed and the solids printing.Whether visual inspection exists the fuzzy of print position or does not wherein have the position of depositing droplets, that is to say, exists or does not exist hole for evaluation.As for estimating jetting stability, being shown in the printing of letters/symbols and solids with the Double Circle label table prints and does not have fuzzy and hole and the not drift at the saltation point place in these two, represent only in solids are printed, to exist slight bluring with circular mark, represent the drift of part saltation point and in solids are printed, have fuzzy and hole with mark △, but do not have fuzzy and hole in the letters/symbols of printing, letter is printed and solids are printed in these two existence and blured and hole with mark * be illustrated in.

Can find out according to the evaluation result shown in the table 3, contain nonionogenic tenside (itself contains the organic compound shown in the Chemical formula 1 again this tensio-active agent) and amount ranges and be not more than the embodiment 1-6 that 0.1mmHg and surface tension are not more than the glycol ether of 35mN/m between 1 to 20wt% the vapour pressure under 20 ℃, print quality in letters/symbols, all aspects of rate response and jetting stability all are better than not containing the Comparative Examples 1 of nonionogenic tenside, perhaps are better than not containing amount ranges and are not more than the Comparative Examples 2-4 that 0.1mmHg and surface tension are not more than the glycol ether of 35mN/m between 1 to 20wt% the vapour pressure under 20 ℃.

Be not more than in the printing ink of embodiment 9-14 of glycol ether that 0.1mmHg and surface tension be not more than 35mN/m in the nonionogenic tenside that contains the organic compound that comprises that at least a Chemical formula 1 is represented and the vapour pressure under 20 ℃, the surface tension of printing ink descends, wettability to recording sheet P is improved simultaneously, that is to say that printing ink can be along the thickness direction rapid osmotic of recording sheet P.Therefore, utilize embodiment 9-14, can be to such as the PPC sheet material, green sheet or the recording sheet of bonding the sheet material carry out the printing of letters/symbols again, and not fuzzy or ooze out.

In addition, utilize these embodiment, in printing ink, be included in vapour pressure under 20 ℃ and be not more than the glycol ether that 0.1mmHg and surface tension are not more than 35mN/m, indoor or in nozzle at black sap cavity, printing ink maintains under the low surface tension state, and printing ink is to black sap cavity chamber or demonstrate excellent wettability in nozzle.Therefore, can be directly after the ejection in drops out from nozzles with the printing ink fast supply to resistance heater, result even under the situation that ink jet shortens at interval also can spray ink droplet apace from nozzle.That is to say, if utilize these embodiment, the frequency of driving voltage is increased to 1kHz, 3kHz or is increased to 10kHz, and injection interval shortens, then ink droplet can be fed on the resistance heater apace, and result even under the situation that print speed reduces is for injection events each time, ink droplet can spray from nozzle 22a fully, thereby realizes the high image quality printing.

Owing to can suppress except the foam the foam that forms on the resistance heater, and printing ink demonstrates the wettability to the inwall excellence of nozzle, printing ink can not produce under the situation of drift with predetermined direction ejection at deposition direction, consequently can realize not having the letters/symbols of the high image quality of hole to print and solids are printed.

Utilize the Comparative Examples that do not contain nonionogenic tenside 7 opposite with these embodiment, printing ink only shows the wettability of going on business to ink chamber inside, and the result is difficult to printing ink is fed on the resistance heater rapidly after the injection of ink droplet.The result is that in Comparative Examples 7, injection interval is short more, that is to say that injection interval is high more, be difficult to spray ink droplet more, itself can not be applicable to flying print the injection of results ink, therefore produces the drift of deposition position, fuzzy or hole, has reduced the print quality of letters/symbols.

In the Comparative Examples 8 opposite with these embodiment, in printing ink, comprise 25wt% and be not more than 0.1mmHg and surface tension is not more than the diethylene glycol monobutyl ether of 35mN/m as glycol ether 20 ℃ of following vapour pressures, therefore printing ink demonstrate high wettability to recording sheet, the result is in ink droplet ejection and be deposited under the situation on the recording sheet, printing ink is exuded on the surface of recording sheet, has reduced print quality.

In the Comparative Examples 9 opposite with these embodiment, in printing ink, comprise 25wt% and be not more than diethylene glycol monobutyl ether that 0.1mmHg and surface tension be not more than 35mN/m as glycol ether 20 ℃ of following vapour pressures, therefore printing ink be not in the low surface tension state.So printing ink does not demonstrate sufficient wettability to ink chamber or nozzle, the result is difficult to fast printing ink is fed on the resistance heater after the ejection ink droplet after the ejection ink droplet.Therefore, in Comparative Examples 3, injection interval is short more, that is to say that the frequency of driving voltage is big more, for each injection events, be difficult to from nozzle, spray ink droplet more, results ink injection itself can not be applicable to highly and print, and deposition position drifts about or generation is fuzzy or hole, thereby reduces the quality that letters/symbols is printed.

In the Comparative Examples 10 opposite with these embodiment (it contains 20 ℃ of following vapour pressures is that 0.6mmHg and surface tension are the ethylene glycol monobutyl ether of 24mN/m), this ethylene glycol monobutyl ether is easy to evaporation, reduces the content of ethylene glycol monobutyl ether in printing ink.Therefore, in Comparative Examples 4, the surface tension that can not suppress printing ink is to lower numerical value, and the result can not obtain to black sap cavity chamber or to the sufficient wettability of nozzle.If can not keep the state of ink jet, spray nozzle clogging then appears, the result, in Comparative Examples 10, the delayed injection of ink droplet, or the predetermined direction of skew, thus cause the jetting stability that reduces, the deposition position or the hole of skew.

In view of aforementioned, in manufacture of ink, comprise at least a nonionogenic tenside that contains the organic compound shown in the Chemical formula 1 and be not more than the glycol ether that 0.1mmHg and surface tension are not more than 35mN/m with the consumption of 1-20wt% 20 ℃ of following vapour pressures, thereby can produce not fuzzy or ooze out, the printing ink of quality, rate response and the jetting stability excellence of the letters/symbols of stable and standing storage performance, printing in the ink droplet jet direction.

The above-mentioned embodiment that the present invention is not limited to illustrate with reference to the accompanying drawings and to one skilled in the art it is evident that, can carry out many variations, correction or replacement under the situation that does not break away from claim of the present invention and purpose.

Industrial applicibility

According to the present invention, as mentioned above, the tensio-active agent that comprises the organic compound that contains above-mentioned chemical formula in recording liquid, rather than the conventional surfactants of for example being made up of acetylenediol, the result can be with than the situation of using conventional acetylenediol record of production liquid cheaply.

Claims

1. recording liquid that is deposited on thereon as drop on the carrier of printing, it comprises:

Dyestuff, disperse the solvent of this dyestuff and contain the tensio-active agent of the organic compound that following Chemical formula 1 represents:

Wherein m and n are not less than 1 integer.

2. the recording liquid of claim 1, wherein for described tensio-active agent, m in Chemical formula 1 and n sum are not less than 2 and be not more than 30.

3. the recording liquid of claim 1 wherein comprises described tensio-active agent to be not less than 0.05wt% with the consumption that is not more than 10wt%.

4. the recording liquid of claim 1, wherein under 25 ℃, surface tension is not less than 30N/m and is not more than 60N/m, and viscosity is not more than 15mPa.s.

5. be loaded on the liquid injection apparatus and as the fluid cartridge of the source of supply operation of recording liquid, described recording liquid is contained in the container for liquid, described liquid injection apparatus sprays described recording liquid for deposition and record on carrier, wherein with the drop form

Described recording liquid contains dyestuff, disperse the solvent of this dyestuff and contain the tensio-active agent of the organic compound that following Chemical formula 1 represents:

Wherein m and n are not less than 1 integer.

6. the fluid cartridge of claim 5 wherein comprises described tensio-active agent to be not less than 0.05wt% with the consumption that is not more than 10wt%.

7. the fluid cartridge of claim 5, wherein said fluid container comprises the fluid container that contains described recording liquid; The connection portion, when described connection portion is loaded on the described liquid injection apparatus, the described recording liquid that it will be included in the described fluid container is connected on the described liquid injection apparatus, so that the described recording liquid that is included in the described fluid container can be supplied in the described liquid injection apparatus; Outside intercommunication opening is equivalent to air by the slippage of supplying the described recording liquid in described fluid container that described recording liquid causes to the described liquid injection apparatus from described fluid container for suck consumption from the outside; The gas inlet conduit for set up passage between described fluid container and described outside intercommunication opening, is incorporated into the air that enters through described outside intercommunication opening in the described fluid container; And the storage between described outside intercommunication opening and described gas inlet conduit, to store from the outside effusive described recording liquid of described fluid container.

8. liquid injection apparatus, it comprises:

Splashing device, described splashing device comprises the liquid chamber of store recording liquid; Supply the feeding unit of described recording liquid to described liquid chamber; The one or more presser unit that in described liquid chamber, provide to pressurize to the described recording liquid that is stored in the described liquid chamber; With spray through the described recording liquid of the described pressure exerting device pressurization injection opening to the major surfaces of carrier from each liquid chamber with the drop state;

Be connected on the described splashing device and and described recording liquid be fed to the fluid cartridge on the described feeding unit and control the jetting controller that described presser unit drives with the source of supply formal operations;

Wherein m and n are not less than 1 integer.

9. the liquid injection apparatus of claim 8 wherein comprises described tensio-active agent to be not less than 0.05wt% with the consumption that is not more than 10wt%.

10. the liquid injection apparatus of claim 8, wherein said jetting controller supply pulsed current is on described presser unit, and to control this presser unit, the frequency that wherein is fed on the described presser unit is not less than 1kHz.

11. the liquid injection apparatus of claim 10, the frequency that wherein is fed on the described presser unit is not less than 3kHz.

12. the liquid injection apparatus of claim 10, wherein in the liquid chamber of described splashing device, provide a plurality of described presser unit, and wherein said jetting controller is controlled the driving of each presser unit to be controlled at the spray angle that sprays in the described drop process from described injection opening.

13. the liquid injection apparatus of claim 10, the described injection opening of wherein said splashing device are arranged with the form of row basically.

14. the method by the liquid injection apparatus atomizing of liquids comprises

Splashing device, described splashing device comprises the liquid chamber of store recording liquid; Supply the feeding unit of described recording liquid to described liquid chamber; The one or more presser unit that provide in described liquid chamber are to give the described recording liquid pressurization that is stored in the described liquid chamber; With spray through the described recording liquid of the described pressure exerting device pressurization injection opening to the major surfaces of carrier from each liquid chamber with the drop state;

Wherein as described recording liquid, use and contain dyestuff, disperse the solvent of this dyestuff and contain the liquid mixture of the tensio-active agent of the organic compound that following Chemical formula 1 represents:

Wherein m and n are not less than 1 integer.

15. the liquid jet method of claim 14 wherein comprises described tensio-active agent to be not less than 0.05wt% with the consumption that is not more than 10wt%.

16. the liquid jet method of claim 14, wherein said jetting controller supply pulsed current is on described presser unit, and to control this presser unit, the frequency that wherein is fed on the described presser unit is not less than 1kHz.

17. the liquid jet method of claim 16, wherein said jetting controller supply are set at the pulsed current that is not less than 3kHz as the pulsed current that is fed on the described presser unit.

18. the liquid jet method of claim 14, wherein

A plurality of described pressure generation elements are provided in the chamber of described splashing device; Wherein

Described presser unit is controlled the driving of each presser unit to control the spray angle of described drop from described injection opening part.

19. the liquid jet method of claim 14, wherein

A plurality of injection openings of described splashing device are arranged with the form of going basically shoulder to shoulder.

20. recording liquid that is deposited on thereon with the drop state on the carrier of printing; Wherein

21. the recording liquid of claim 20 wherein comprises described tensio-active agent and comprises described glycol ether to be not less than 1wt% with the consumption that is not more than 20wt% with the consumption that is not more than 5.0wt% to be not less than 0.1wt%.

22. one kind is loaded on the liquid injection apparatus and as the fluid cartridge of the source of supply operation of recording liquid, described recording liquid is contained in the container for liquid, described liquid injection apparatus sprays described recording liquid with the drop form, for deposition and record on carrier,

Wherein said recording liquid contains dyestuff, disperse the solvent of this dyestuff and contain the tensio-active agent of the organic compound that Chemical formula 1 represents:

23. the fluid cartridge of claim 22, wherein based on the gross weight of whole liquid, comprise described tensio-active agent to be not less than 0.1wt% with the consumption that is not more than 5.0wt%, and, comprise described glycol ether with the consumption that is not more than 20wt% to be not less than 1wt% wherein based on the gross weight of liquid.

24. a liquid injection apparatus, it comprises

Splashing device comprises: the liquid chamber of store recording liquid; Supply the feeding unit of described recording liquid to described liquid chamber; The one or more presser unit that provide in described liquid chamber are to give the described recording liquid pressurization that is stored in the described liquid chamber; With spray through the described recording liquid of the described pressure exerting device pressurization injection opening to the major surfaces of carrier from each liquid chamber with the drop state;

Be connected on the described splashing device and with the source of supply formal operations with described recording liquid be fed on the described feeding unit fluid cartridge and

Control the jetting controller that described presser unit drives;

25. the liquid injection apparatus of claim 24, wherein based on the weight of whole liquid, comprise described recording liquid to be not less than 0.1wt% with the consumption that is not more than 5.0wt%, and, comprise described glycol ether with the consumption that is not more than 20wt% to be not less than 1wt% wherein based on the gross weight of liquid.

26. the liquid injection apparatus of claim 24, wherein

A plurality of injection openings of described splashing device are arranged with the form of going shoulder to shoulder.

27. the method by the liquid injection apparatus atomizing of liquids comprises

Control the jetting controller that described presser unit drives; Wherein

Wherein m and n are not less than 1 integer, and the vapour pressure under 20 ℃ is not more than 0.1mmHg and surface tension is not more than the glycol ether of 35mN/m, and wherein spray described recording liquid from described injection opening.

28. the liquid jet method of claim 27, wherein based on the weight of whole liquid, comprise described recording liquid to be not less than 0.1wt% with the consumption that is not more than 5.0wt%, and, comprise described glycol ether with the consumption that is not more than 20wt% to be not less than 1wt% wherein based on the gross weight of liquid.

29. the liquid jet method of claim 27, a plurality of injection openings of wherein said splashing device are arranged with the form of going shoulder to shoulder.