JPH08216395A - Ink jet recording method and device - Google Patents

Abstract

PURPOSE: To obtain an image excellent in printing quality, water resistance and color boundary blurring by a method wherein both the recording of a treating liquid and the recording of colors, to which no treating liquid is given, precedes with the recording of colors, to which the treating liquid is given, in a recording method, which selects the giving of the treating liquid or not in response to a recording image. CONSTITUTION: A head unit is so constituted that an S (treating liquid) chip 2201, a Bk chip 2202, a C chip 2203, a M chip 2204 and a Y chip 2205 are fixed to a frame 2206. The interval between the respective chips is 1/2 inch. The chips are arranged at equal intervals in a main scanning X direction. From each nozzle of the nozzle train of the Bk chip, about 80 pl of ink is discharged. Further, from the nozzle of the nozzle train of each one of the respective Y, M, C and S chips, about 40 pl of ink is discharged. In this case, when recording accompanied with the treating liquid is carried out, S and C heads use lower side 64 nozzles of a nozzle, while Bk, Y and M heads use upper side 64 nozzles of their nozzles, resulting in preceding the execution of the recordings with the S and C heads with that of the recording with the Bk, Y and heads.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet recording method and recording apparatus capable of obtaining a high quality image on a recording material at high speed. Here, the record means
Includes the application of ink (printing) to all print media such as cloth, thread, leather, non-woven fabric, paper, OHC paper, sheet material, etc., and the recording device is all information processing devices or their output. It is applicable to all devices including vessels. Specific applicable equipment includes office equipment such as printers, copying machines, and facsimiles, and industrial production equipment.

[0002]

2. Description of the Related Art Conventionally, an ink jet recording method has been used for a printer, a copying machine or the like because of its low noise, low running cost, easy downsizing of an apparatus, and easy colorization.

However, when an image is obtained on a recording material, so-called plain paper, by these recording apparatuses to which the ink jet recording method is applied, the water resistance of the image is insufficient or a color image is obtained. In contrast, it was not possible to achieve both a high-density image with no feathering and an image with no intercolor bleeding, and a color image with good image fastness and good quality could not be obtained.

As a method for improving the water resistance of an image, an ink in which a coloring material contained in the ink has water resistance has been put into practical use in recent years. However, its water resistance is still inadequate, and since it is an ink that is difficult to dissolve in water after drying in principle, it is easy for nozzle clogging of the recording head to occur, and to prevent this, the device configuration becomes complicated. There was a drawback that

In addition, a number of techniques for improving the robustness of the recording medium have been disclosed in the past. JP-A-53-2448
No. 6 discloses a technique in which a dye is post-treated to lake and fix the dye in order to enhance the wet fastness of the dye.

Japanese Unexamined Patent Publication No. 54-43733 discloses a method of recording by using an ink jet recording system, using two or more components which increase the concentration of film formation at room temperature or when they are in contact with each other. A printed matter is obtained in which a film is firmly adhered to each other by contacting each component on the medium.

Japanese Patent Laid-Open No. 55-150396 also discloses a method of applying a water resistant agent for forming a lake with a dye after ink-jet recording an aqueous dye ink.

Japanese Unexamined Patent Publication (Kokai) No. 58-128862 discloses an ink jet recording method in which the position of an image to be recorded is identified in advance and the recording ink and the processing ink are superposed and recorded. Alternatively, a method is disclosed in which the treatment ink is superposed on the previously drawn treatment ink, or the treatment ink is superposed on the previously drawn treatment ink, and the treatment ink is further superposed on the second treatment ink.

Further, similar recording methods are disclosed in JP-A-63-60783 and JP-A-64-69381.

However, these documents do not disclose the head structure peculiar to the ink jet recording apparatus, particularly the print mode for improving the print speed of the recorded image.

[0011] Specifically, there is no description about how to apply the treatment ink so as to perform the pretreatment for both the forward pass and the return pass during the recording operation.

[0012]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an ink jet recording method and apparatus capable of high-speed printing on a recording material and giving an image excellent in print quality, water resistance, and color boundary bleeding. To provide.

[0013]

In order to achieve the above-mentioned object of the present invention, an ink jet recording method according to a first solution of the present invention is an ink jet recording method, in which the forward and backward passes of the main scanning direction of a recording nozzle array. Both are an inkjet recording method for performing recording, and an inkjet recording method for performing recording by selecting recording with a treatment liquid and recording without a treatment liquid according to a recorded image, and recording the treatment liquid and the treatment liquid. Is recorded at a recording position prior to the recording of the color to which the treatment liquid is applied.

In the ink jet recording method according to the second solution of the present invention, in the main scanning direction of the recording nozzle array,
It is an inkjet recording method for performing recording on both the outward path and the return path, and in an inkjet recording method for performing recording by selecting recording with a treatment liquid and recording without a treatment liquid according to a recorded image, The assigned first nozzle row, the second nozzle row assigned for the ink of the color to which the treatment liquid is not applied, and the third nozzle row assigned for the ink for recording the color to which the treatment liquid is applied. The sub-scanning in which the first nozzle row is orthogonal to the main scanning direction in the processing liquid recording unit between the forward path and the return path of the first, second, and third nozzle rows in the main scanning direction. It is characterized in that the first and second nozzle rows are controlled to perform recording at a recording position preceding the third nozzle row in a recording advancing path that moves in the direction by the scanning bandwidth.

An ink jet recording method according to a third solving means of the present invention is the ink jet recording method according to the above second solving means, wherein the second nozzle row is recorded at a recording position preceding the third nozzle row. However, the recording of the second nozzle row is controlled so as to be performed in the same scan as that of the first nozzle row.

An ink jet recording method according to a fourth solving means of the present invention is the ink jet recording method according to any one of the above first to third solving means, wherein an ink recording area for recording a color of the treatment liquid or the material is used. It is characterized in that it is attached to the recording area and its vicinity.

An ink jet recording method according to a fifth solving means of the present invention is the ink jet recording method according to any one of the above first to third solving means, wherein the treatment liquid improves water resistance of a recorded image. It is characterized by being.

An inkjet recording method according to a sixth solving means of the present invention is the inkjet recording method according to any one of the above first to third solving means, wherein the treatment liquid causes a boundary blur between different colors of a recorded image. It is characterized in that it is reduced.

An ink jet recording method according to a seventh solving means of the present invention is characterized in that, in the ink jet recording method according to the above first solving means, the treatment liquid improves print quality of a recorded image. To do.

An inkjet recording method according to an eighth solution of the present invention is the inkjet recording method according to any one of the first to third solutions described above, wherein the treatment liquid contains at least one cationic substance. Is characterized by.

An ink jet recording method according to a ninth solving means of the present invention is the ink jet recording method according to the above eighth solving means, wherein the treatment liquid contains a low molecular weight cationic surfactant and polyallylamine. And

An ink jet recording method according to a tenth solution of the present invention is the ink jet recording method according to any of the above first to ninth solutions, wherein the ink for recording the color is black, cyan or magenta. , Yellow.

An ink jet recording method according to an eleventh solution of the present invention is the ink jet recording method according to any of the first to ninth solutions described above, wherein the ink for recording a color to which the treatment liquid is not applied is a solubilizing group. Is characterized by containing a dye having a carboxyl group as a coloring material.

The ink jet recording method according to the twelfth solving means of the present invention is the ink jet recording method according to the eleventh solving means, wherein the dye having a carboxyl group exhibits solubility dependence on pH. Characterize.

An ink jet recording method according to a thirteenth solving means of the present invention is the ink jet recording method according to any one of the above first to ninth solving means, wherein an ink for recording a color to which a treatment liquid is not applied is used as a coloring material. It is characterized by containing an oil-soluble dye.

An ink jet recording method according to the fourteenth solving means of the present invention is the ink jet recording method according to any one of the above first to ninth solving means, wherein the ink for recording a color to which the treatment liquid is not applied is a coloring material. It is characterized by containing a cationic dye.

An ink jet recording method according to the fifteenth solving means of the present invention is the ink jet recording method according to any one of the above first to ninth solving means, wherein the ink for recording a color to which the treatment liquid is not applied is a coloring material. It is characterized by containing a pigment.

An ink jet recording apparatus according to the sixteenth solving means of the present invention is an ink jet recording method for performing recording on both the forward path and the return path in the main scanning direction of a recording nozzle array, and a treatment liquid according to a recorded image. In an inkjet recording apparatus that performs recording by selecting recording with application of a treatment and recording without application of a treatment liquid,
Discharge unit, a second head that discharges ink that records a color that does not apply the treatment liquid, a third discharge unit that discharges ink that records a color that applies the treatment liquid, and the first and second And a frame provided with a third discharge portion, and the first and second
And a control unit that controls the ejection of the treatment liquid or the ink from the nozzles of the third ejection unit, wherein the first and second heads on the frame include the third ejection unit in the recording progression path. It is arranged on the side preceding
The control unit precedes the ejection of the ink to which the treatment liquid is not applied from the nozzle row of the second ejection unit by the ejection of the ink to which the treatment liquid is applied from the nozzle row of the third ejection unit. It is characterized in that the control is performed so as to be performed at the recording position.

An ink jet recording apparatus according to the seventeenth solving means of the present invention is the ink jet recording apparatus according to the above sixteenth solving means, wherein the control means is the second.
The ejection of the ink to which the treatment liquid is not applied from the nozzle of the ejection unit is controlled to be performed in the same scan as the ejection of the treatment liquid from the nozzle of the first ejection unit.

The ink jet recording apparatus according to the eighteenth solution means of the present invention is an ink jet recording method for performing recording on both the forward and return paths of the recording nozzle array in the main scanning direction, and the treatment liquid is used according to the recording image. In an inkjet recording apparatus that performs recording by selecting recording with application of a treatment and recording without application of a treatment liquid,
Discharge unit, a second discharge unit that discharges ink that records a color that does not apply the treatment liquid, a third discharge unit that discharges ink that records a color that applies the treatment liquid, A frame provided with second and third discharge parts, and the first and second
And a control means for controlling the ejection of the treatment liquid or the ink from the nozzles of the third ejection portion, wherein the first, second and third ejection portions on the frame are respectively preceded in the recording progression path. A first portion and a remaining second portion, the control means is configured such that the first ejecting portion ejects the treatment liquid from the nozzle of the first portion, and the second ejecting portion Ink for recording a color to which the treatment liquid is not applied is ejected from the nozzle of the first portion, and the third ejection portion ejects ink of the color to which the treatment liquid is applied from the nozzle row of the second portion. Control to do.

An ink jet recording apparatus according to a nineteenth solving means of the present invention is the ink jet recording apparatus according to the above eighteenth solving means, wherein the control means is the second one.
The ejection of the ink to which the treatment liquid is not applied from the nozzle of the ejection unit is controlled to be performed in the same scan as the ejection of the treatment liquid from the nozzle of the first ejection unit.

An ink jet recording apparatus according to the twentieth solution means of the present invention is the ink jet recording apparatus according to any one of the solution means of the sixteenth through nineteenth aspects, wherein the ejection portion uses ink or treatment liquid by utilizing thermal energy. And a thermal energy generating means for generating thermal energy to be applied to the ink.

An ink jet recording apparatus according to the twenty-first solution means of the present invention is the ink jet recording apparatus according to any one of the above-mentioned sixteenth to twentieth solution means, wherein the ejection portion is attachable to and detachable from the recording apparatus body. It is characterized by being.

A printed matter according to the twenty-second means for solving the present invention is characterized in that it is printed by using the ink jet recording method according to any one of the means for solving the problems described above.

A printed matter according to the twenty-third solving means of the present invention is characterized in that it is printed by using the ink jet recording method according to any one of the above-mentioned sixteenth to twenty-first solving means.

An ink jet head unit according to the twenty-fourth solving means of the present invention is an ink jet recording method for performing recording on both the forward path and the return path in the main scanning direction of a recording nozzle array, and a treatment liquid according to a recorded image. In an inkjet head unit for an inkjet recording apparatus that performs recording by selecting recording with application of a treatment liquid and recording without application of a treatment liquid, a first head for ejecting a treatment liquid and ink for recording a color without application of the treatment liquid. A first head for ejecting ink, a third head for ejecting ink for recording a color for applying the treatment liquid, and a frame provided with the first, second and third heads, and the first head And the second head is located on the frame so as to perform recording at a recording position preceding the third head in the recording progress path. It is characterized in.

An ink jet head unit according to the twenty-fifth solving means of the present invention is an ink jet recording method for performing recording on both the forward and return paths of the recording nozzle array in the main scanning direction, and the treatment liquid is applied according to the recorded image. In an inkjet head unit for an inkjet recording apparatus that performs recording by selecting recording with application of a treatment liquid and recording without application of a treatment liquid, a first head for ejecting a treatment liquid and ink for recording a color without application of the treatment liquid. A second head for ejecting ink, a third head for ejecting ink for recording a color to which the treatment liquid is applied, and a frame provided with the first, second and third heads. The first, second, and third heads of the first head portion and the remaining second head portion, respectively, which should be positioned at the preceding recording positions in the recording progress path. And having a nozzle portion.

An ink jet head unit according to the twenty-sixth solution means of the present invention is the ink jet head unit according to the twenty-fourth or twenty-fifth solution means described above,
Further, it is characterized by having an ink tank.

An ink jet head unit according to the twenty seventh solution of the present invention is characterized in that the ink tank is filled with ink in the ink jet head unit according to the twenty sixth solution.

An inkjet head unit according to the twenty-eighth solution means of the present invention is characterized in that, in the inkjet head unit according to the twenty-sixth solution means, the ink tank is refilled with ink.

The ink refilling method according to the twenty-ninth solution means of the present invention is characterized in that ink is introduced into the ink tank of the ink jet unit according to the twenty-sixth solution means by using an ink introduction means.

[0042]

[Function] Here, even a part of the same head as the discharge part,
Also, different heads may be used.

According to the present invention, when the treatment liquid recording portion is recorded prior to the ink nozzles for recording the color to which the treatment liquid is applied, the printing speed is high, the water resistance and the color development are excellent,
It is possible to obtain an image with no blur between colors.

(Preferred Embodiment) The processing liquid used in the present invention will be described.

The processing liquid is: Improve the water resistance of recorded images 1. Improving the print quality of recorded images In addition, in color recording, There is no limitation as long as it has a function of reducing the blurring between different colors of different colors in the recorded image, but the above effect can be exhibited when at least one cationic substance is contained in the treatment liquid. become.

The cationic substance is not particularly limited as long as it has a cationic group in the molecule, but a cationic surfactant, a cationic oligomer, a polymer and the like are preferable.

First of all, preferable specific compounds of the cationic surfactant are primary, secondary or tertiary.
Compounds of salts of secondary amines, specifically, hydrochlorides of laurylamine, coconut amine, stearylamine, rosinamine and the like; Quaternary ammonium type compounds, specifically, cetyltrimethylammonium chloride, lauryltrimethylammoniumium chloride, lauryl Dimethylbenzylammonium chloride, benzyltributylammonium chloride, benzalkonium chloride, etc .; some P
An amphoteric surfactant having a cationic property in the H region, specifically, an amino acid-type amphoteric surfactant, a betaine-type compound, or the like adjusted to an isoelectric point or lower is mentioned, but is not limited thereto. .

Of these compounds, the fourth
Quaternary ammonium type compounds are preferred.

Specific examples of the monomer unit for the cationic oligomer or polymer include vinylamine, allylamine, vinylpyridine, vinylimidazole, N, N-dimethylaminoacrylamide, ethyleneimine and 2-oxazoline. However, of course, it is not limited to these.

Further, not only the above-mentioned homopolymer of a cationic monomer unit, but also a copolymer with a nonionic monomer unit, a nonionic oligomer, or a polymer obtained by polymerizing a part of the polymer is problematic. Absent.

Of these compounds, oligomers and polymers containing allylamine as a unit are particularly preferable.

Furthermore, when a low molecular weight cationic surfactant and polyallylamine are used in combination, blurring at different color boundaries can be reduced at the time of color recording. Therefore, among the above-mentioned combinations, the combination is particularly suitable for color recording.

Next, the other constituents used in the present invention will be described.

A water-soluble dye is used as the coloring material of the color recording ink to which the treatment liquid is applied in the present invention. As the water-soluble dye, one having an anionic group as a solubilizing group is used. The ink used in the present invention further includes water, a water-soluble organic solvent, and other components such as a viscosity adjusting agent, a PH adjusting agent, a fungicide, a neutral or anionic surfactant, and an antioxidant. Agents and the like are included as necessary.

In the present invention, the color of the color recording ink for applying the treatment liquid is black, cyan, magenta or yellow, and the coloring material includes an anionic water-soluble dye.

The water-soluble dye having an anionic group used in the present invention includes a color index (COLOU).
R INDEX), water-soluble acid dyes,
There is no particular limitation as long as it is a direct dye or a reactive dye. Also,
The dyes not listed in the color index are not particularly limited as long as they have an anionic group, for example, a sulfone group. These dyes are used in the ink in an amount of 1 to 10% by weight, preferably 1 to 5% by weight.

Specific dyes include C.I. I. Direct Yellow 8, 11, 12, 27, 28, 33, 3
9,44,50,58,85,86,87,88,8
9, 98, 100, 110 C.I. I. Direct Red 2,4,9,11,20,
23, 24, 31, 39, 46, 62, 75, 79, 8
0,83,89,95,197,201,218,22
0,224,225,226,227,228,230 C.I. I. Direct Blue 1,15,22,25,4
1, 76, 77, 80, 86, 90, 98, 106, 1
08,120,158,163,168,199,22
6 C. I. Acid Yellow 1,3,7,11,17,
23, 25, 29, 36, 38, 40, 42, 44, 7
6,98,99 C.I. I. Acid Red 6,8,9,13,14,1
8, 26, 27, 32, 35, 42, 51, 52, 8
0,83,87,89,92,106,114,11
5,133,134,145,158,198,24
9,265,289 C.I. I. Acid Blue 1,7,9,15,22,2
3,25,29,40,43,59,62,74,7
8, 80, 90, 100, 102, 104, 117, 1
27, 138, 158, 161 C.I. I. Direct Black 17,19,22,3
1, 32, 51, 62, 71, 74, 112, 113,
154,168 C.I. I. Acid Black 2,48,51,52,1
10,115,156 C.I. I. Reactive Black 1,8,12,13 C.I. I. Food Black 1, 2 and the like can be mentioned.

In the present invention, the coloring material of the ink for recording the color without applying the treatment liquid is as follows. Dyes having a carboxyl group as a solubilizing group These include dyes having solubility dependence on pH.

2. Oil-soluble dye 3. Cationic dye 4. Pigments are preferred.

When the ink containing these coloring materials is brought into contact with the ink containing the water-soluble anionic dye which gives the treatment liquid, the ink does not cause bleeding at the boundary because of precipitation at the boundary or incompatibility with each other. Therefore, it is desirable.

In particular, the above 1. , 2. , 4. Many of the coloring materials have excellent water resistance and are particularly desirable.

As the dye having a carboxyl group, for example, the following compound 1 (chemical formula 1), compound 2 (chemical formula 2),
Examples thereof include compound 3 (formula 3) and compound (formula 4), but of course the present invention is not limited to dyes having these structures.

Compound 1

[0064]

Embedded image

Compound 2

[0066]

Embedded image

Compound 3

[0068]

Embedded image

Compound 4

[0070]

[Chemical 4]

The oil-soluble dye is not particularly limited as long as it is one described in the color index (COLOUR INDEX). In addition, even if it is a new dye not described in the color index, there is no particular limitation.

Specifically, C.I. I. Solvent blue
33, 38, 42, 45, 53, 65, 67, 70, 1
04, 114, 115, 135, C.I. I. Solvent Red 25, 31, 86, 92, 97, 118, 13
2,160,186,187,219, C.I. I. Solvent Yellow 1,49,62,74,79,82,8
3,89,90,120,121,151,153,1
54 and the like.

The cationic dye is not particularly limited as long as it is described in the color index (COLOUR INDEX). In addition, even if it is a new dye not described in the color index, there is no particular limitation.

Specifically, C.I. I. Basic Black 2,8 Aizen Cathilon Black SBH,
BXH, SH, ACH, MH, TH (manufactured by Hodogaya Chemical Co., Ltd.) Sumiacryl Black B, R, AP, B
P, CP, FFP (Sumitomo Chemical Co., Ltd.) Diacryl Supra Black GSL, R
SL, ESL (manufactured by Mitsubishi Kasei) C.I. I. Basic Yellow 1,11,13,19,
25, 33, 36 C.I. I. Basic Red 1, 2, 9, 12, 13,
38, 39, 92 C.I. I. Basic Blue 1,3,5,9,19,2
4, 25, 26, 28, 45, 54, 65, 75 and the like.

When a pigment is used as a coloring material of the ink used in the present invention, the amount of the pigment is 1 to 20% by weight, preferably 2 to 12% by weight based on the total weight of the ink. Used in the range.

The pigment used in the present invention includes:
Specifically, carbon black can be used as a black ink, for example, a furnace method,
A carbon black produced by the channel method, which has a primary particle size of 15 to 40 μm, a specific surface area by the BET method of 50 to 300 m ² / g, and a DBP oil absorption of 40 to 150 m.
1 / 100g, volatile content 0.5 to 10%, pH value 2
Those having characteristics such as 9 are preferably used. Examples of commercially available products having such characteristics include No. 23
00, No. 900, MCF88, No. 33, No.
40, No. 45, No. 52, MA7, MA8, N
o. 2200B (above, manufactured by Mitsubishi Kasei), RAVEN12
55 (above, made in Colombia), REGAL400R, R
EGAL330R, REGAL660R, MOGUL
L (above, made by Cabot), Color Black
FW1, COLOR Black FW18, Colo
rBlack S170, Color Black S
150, Printex 35, Printex U (above, manufactured by Degussa) and the like, all of which can be preferably used.

As the pigment used for the yellow ink, for example, C.I. I. Pigment Yell
ow 1, C.I. I. Pigment Yellow
2, C.I. I. Pigment Yellow 3, C.I.
I. Pigment Yellow 13, C.I. I. P
igment Yellow 16, C.I. I. Pigm
ent Yellow 83 and the like, and examples of the pigment used in the magenta ink include C.I. I. P
igment Red 5, C.I. I. Pigment
Red 7, C.I. I. Pigment Red 12,
C. I. Pigment Red 48 (Ca), C.I.
I. Pigment Red 48 (Mn), C.I. I.
Pigment Red 57 (Ca), C.I. I. Pi
gmentRed 112, C.I. I. Pigment
Red 122 and the like, and examples of the pigment used for the cyan ink include C.I. I. Pigment
Blue 1, C.I. I. Pigment Blue
2, C.I. I. Pigment Blue 3, C.I. I. P
igment Blue 15: 3, C.I. I. Pigm
ent Blue 16, C.I. I. Pigment B
lue 22, C.I. I. Vat Blue 4, C.I.
I. Vat Blue 6 and the like can be mentioned, but the present invention is not limited to these. In addition to the above, it is of course possible to use a pigment newly manufactured for the present invention.

As the dispersant contained in the ink when a pigment is used, any water-soluble resin can be used, but the weight average molecular weight is 1,
Those in the range of 000 to 30,000 are preferable, and those in the range of 3,000 to 15,000 are more preferably used. Specific examples of such dispersants include styrene, styrene derivatives, vinylnaphthalene, vinylnaphthalene derivatives, aliphatic alcohol esters of α, β-ethylenically unsaturated carboxylic acids, acrylic acid, acrylic acid derivatives, maleic acid. , Maleic acid derivative, itaconic acid, itaconic acid derivative, fumaric acid, fumaric acid derivative, vinyl acetate, vinylpyrrolidone, acrylamide, and derivatives thereof (at least one of which is at least one of them) Hydrophilic monomer)
And a block copolymer, a random copolymer, a graft copolymer, or a salt thereof. Alternatively, natural resins such as rosin, gelac and starch can be preferably used. These resins are alkali-soluble resins that are soluble in an aqueous solution in which a base is dissolved. The water-soluble resin used as the pigment dispersant is 0.1 to 5 relative to the total weight of the ink.
It is preferably contained in the range of wt%.

Particularly in the case of an ink containing the above-mentioned pigment, it is preferable that the entire ink is adjusted to be neutral or alkaline. This is preferable because the solubility of the water-soluble resin used as the pigment dispersant can be improved and the ink can be further excellent in long-term storage stability. However, in this case, it may cause corrosion of various members used in the ink jet recording apparatus. Therefore, the pH range of 7 to 10 is preferable.

As the pH adjusting agent used at this time,
Examples thereof include various organic amines such as diethanolamine and triethanolamine, inorganic alkali agents such as hydroxides of alkali metals such as sodium hydroxide, lithium hydroxide and potassium hydroxide, organic acids and mineral acids. The pigment and the water-soluble resin as the dispersant as described above are dispersed or dissolved in an aqueous liquid medium.

These dyes and pigments are contained in the ink in an amount of 1-10.
It is used in the range of 1% by weight, preferably 1 to 5% by weight.

[0082]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view of an ink jet recording apparatus applicable to the present invention. The recording medium 106 inserted into the paper feeding position of the recording apparatus 100 is conveyed to the recordable area of the recording head unit 103 by the feed roller 109. A platen 108 is provided below the recording medium in the recordable area. The carriage 101 is configured to be movable in a direction defined by two guide shafts, a guide shaft a104 and a guide shaft b105, and reciprocally scans a recording area. The carriage 101 is equipped with a recording head that ejects a plurality of color inks and a treatment liquid, and a recording head unit 103 that includes an ink tank that supplies the ink and the treatment liquid to each recording head. The inks of a plurality of colors provided in the inkjet recording apparatus of this example are four colors of black (Bk), cyan (C), magenta (M), and yellow (Y).

At the left end of the movable area of the carriage,
There is a recovery system unit 110 at the bottom, which caps the ejection port of the recording head during non-recording. This left end is called the home position of the recording head.

Reference numeral 107 denotes a switch section and a display element section,
The switch unit is used when the power of the recording apparatus is turned on / off and various recording modes are set, and the switch unit plays a role of displaying the state of the recording apparatus.

The ink jet unit 103 comprises an ink and a head for ejecting a treatment liquid as a printability improving liquid, and an ink tank as a container for accommodating the ink or the treatment liquid supplied thereto. That is, black (Bk), cyan (C), magenta (M)
Each of the four color inks of yellow and yellow (Y), five heads for respectively ejecting the treatment liquid, and tanks provided corresponding to these heads are mounted on the carriage 101 as an inkjet unit 103. Each head and the tank are detachable from each other, and are provided so that only the tank can be exchanged for each ink color or the like as necessary when the ink or treatment liquid in the tank is used up. Of course, only the head can be replaced if necessary. The structure for attaching and detaching the head and the tank is not limited to the above example, and it goes without saying that the head and the tank may be integrally molded.

Further, the improvement of the printability with respect to the treatment liquid is, as an example thereof will be described later, improving the image quality such as density, saturation, sharpness of the edge portion, dot diameter and the like, and improving the ink fixability. It also includes improvement of weather resistance such as water resistance and light resistance, that is, improvement of image storability.

FIG. 2 is a schematic perspective view showing the ink jet unit 103 described with reference to FIG. This configuration shows a configuration in which the tanks for the black, cyan, magenta, and yellow inks and the treatment liquid can be independently replaced as described above.

That is, a head case 102 for detachably mounting each head on the carriage 101.
And Bk tank 20K, C tank 20C, M tank 20M, Y tank 20Y, and processing liquid tank 2
0S is installed. In the head case 102, Bk, C,
A head (not shown) for ejecting the M and Y inks and a head (not shown) for ejecting the treatment liquid are mounted. Each tank is connected to the head via a connecting portion and supplies ink or treatment liquid.

Regarding the structure of the tank, for example, the processing liquid and the tank of Bk may have an integrated structure, or the tanks of C, M, and Y may have an integrated structure, depending on the amount used. Is also good.

FIG. 3 is an enlarged sectional view of the vicinity of the heating element of the recording head. In the figure, 30 is a recording head, and Bk,
Heads 3 for ejecting C, M, and Y inks, respectively
One of 0K, 30C, 30M, 30Y and a head 30S for ejecting the processing liquid. In the inkjet recording apparatus of this example, a heating element, which is an electric / thermal converter, is arranged corresponding to each ink ejection port, and a drive signal corresponding to recording information is applied to the heating element to eject ink from a nozzle. The method is adopted. The heating element 31 is configured to be able to generate heat independently for all nozzles.

The ink in the nozzle which is rapidly heated by the heat generated by the heating element 31 forms a bubble by film boiling, and the pressure of the bubble generation causes the ink droplet 35 to be ejected toward the recording medium 106 as shown in FIG. Then, characters and images are formed on the recording medium. At this time, the volume of each color ink droplet ejected is 15 to 80 ng.

Each of the ejection ports 37 is provided with an ink liquid passage communicating with the ejection port, and a common liquid for supplying ink to these liquid passages is provided behind the portion where the ink liquid passage is provided. A chamber 32 is provided. In order to supply electric power to the ink liquid path corresponding to each of the ejection ports, a heating element 31 which is an electric-heat conversion element that generates thermal energy used for ejecting ink droplets from these ejection ports, and this. Electrode wiring is provided. These heating element 31 and electrode wiring are
It is formed on the substrate 33 made of silicon or the like by a film forming technique. A protective film 36 is formed on the heating element 31 so that the ink and the heating element do not come into direct contact with each other. Further, by stacking the partition wall 34 made of resin or glass material on this substrate, the ejection port, the ink liquid passage, the common liquid chamber, and the like are formed.

As described above, the recording method using the heating element which is the electric / heat converting element is so-called bubble jet recording method because it uses the bubbles formed by the application of thermal energy when the ink droplets are ejected. ing.

Example 1 The following components were mixed and sufficiently stirred, and then pressure filtered with a Fluoropore filter having a pore size of 0.22 μm (trade name, manufactured by Sumitomo Electric Industries, Ltd.) to obtain each ink. . The composition of the used ink and treatment liquid is as follows.

In this embodiment, the case where the C ink does not apply the treatment liquid and the Bk, M, and Y inks apply the treatment liquid will be described, but other colors do not apply the treatment liquid. There is no problem with the color.

Y ink Glycerin 5.0 parts by weight Thiodiglycol 5.0 parts by weight Urea 5.0 parts by weight Isopropyl alcohol 4.0 parts by weight Dye C.I. I. Direct Yellow 142 2.0 parts by weight Water 79.0 parts by weight M Ink Glycerin 5.0 parts by weight Thiodiglycol 5.0 parts by weight Urea 5.0 parts by weight Isopropyl alcohol 4.0 parts by weight Dye C. I. Acid Red 289 2.5 parts by weight Water 78.5 parts by weight C ink Glycerin 5.0 parts by weight Thiodiglycol 5.0 parts by weight Urea 5.0 parts by weight Isopropyl alcohol 4.0 parts by weight Exemplified Compound 3 3.0 parts by weight Parts below compound 5 1.0 parts by weight water 77.0 parts by weight Bk ink glycerin 5.0 parts by weight thiodiglycol 5.0 parts by weight urea 5.0 parts by weight isopropyl alcohol 4.0 parts by weight dye hood black 2 3. 0 parts by weight Water 78.0 parts by weight Treatment liquid A Polyallylamine hydrochloride 5.0 parts by weight Benzalkonium chloride 1.0 parts by weight (Cation G50, manufactured by Sanyo Kasei) Diethylene glycol 10.0 parts by weight Water 83.5 parts by weight Treatment liquid B Polyethyleneimine hydrochloride 5.0 parts by weight (Epomin SP-012, manufactured by Nippon Shokubai) Cetyltrimethylammo Umchloride 1.0 part by weight (Levon TM-16, manufactured by Sanyo Kasei) Diethylene glycol 10.0 parts by weight Water 83.5 parts by weight Treatment liquid C Polyallylamine hydrochloride 5.0 parts by weight Diethylene glycol 10.0 parts by weight Water 84. 5 parts by weight FIG. 4A shows the color head unit used in this embodiment. The unit is composed of an S (processing liquid) chip 230.
1, Bk chip 2302, C chip 2303, M
The chip 2304 and the Y chip 2305 are attached to the frame 23.
The configuration is fixed to 06. The intervals between the chips are 1/2 inch, and the chips are arranged at equal intervals in the direction of arrow X, which is the main scanning direction. The number of nozzles in each chip is 64, and the nozzle rows in each chip are arranged so as to be substantially orthogonal to the arrow X direction.

The pitch of each nozzle is about 70 μm, and 3
With a resolution of 60 dpi, a band for 64 nozzles can be recorded in one main scan.

Further, the S chip and the C chip are arranged on the leading side at the recording position by the recording bandwidth in the Y direction which is the sub-scanning direction.

About 80 pl of ink is ejected from each nozzle of the nozzle row of the Bk chip, and about 40 pl of ink is ejected from each nozzle of the nozzle row of each YMCS chip.

Using the recording head having such a structure, the reciprocal recording operation will be described with reference to FIG. 5, in which the recording operation is performed with the processing liquid on the forward and return paths in the X direction which is the main scanning direction.

STEP 1: First, the band 1 is recorded by the S chip and the C chip with the recording width of 64 nozzles in the forward direction. After that, the recording medium is relatively moved in the sub-scanning direction by the recording width. Here, the S recording data is the logical sum data of the Y, M, and Bk data, which is to be recorded in the band 1 before, based on the Y, M, and Bk data, and the S data is recorded in advance. By this step, S is recorded on the recording medium in advance of the area for recording Y, M, Bk. After the recording operation, the recording medium is moved in the sub-scanning direction by the recording bandwidth.

STEP2: Band 2 is recorded by the S chip and the C chip in the return direction. Here, the S recording data is Y, M, B, which should be recorded in band 2 in due course.
Based on k data, logical sum data of Y, M, Bk data is created and recorded as S data in advance. at the same time,
Band 1 is recorded with Y, M and Bk chips. In the area for recording Y, M, Bk data,
S has already been recorded in STEP 1. After the recording operation,
The recording medium is moved in the sub-scanning direction by the recording bandwidth.

STEP 3: The band 3 is recorded by the S chip and the C chip in the forward direction. Here, the S recording data is Y, M, B, which is to be recorded in band 3 before long.
Based on k data, logical sum data of Y, M, Bk data is created and recorded as S data in advance. at the same time,
Band 2 is recorded with Y, M and Bk chips. In the area for recording Y, M, Bk data,
S has already been recorded in STEP2. After the recording operation,
The recording medium is moved in the sub-scanning direction by the recording bandwidth.

Thereafter, by repeating the recording operation in the same manner, Y
The treatment liquid is always attached (recorded) in advance to the MBk recording area.

By recording this treatment liquid, a high-quality recorded image having water resistance and high reliability, less feathering and high recording density, and free from bleeding at different color boundaries was obtained.

For the C recording area to which S is not added,
Due to the characteristics of the C ink, it is highly reliable and has a high quality level with no practical problems in terms of feathering and recording density.

When the treatment liquid was changed to A, B and C,
When the treatment liquid A was used, the feathering was the least, the recording density was high, and a high-quality recorded image without blurring of the boundary of different colors was obtained.

The print quality of the treatment liquid B was slightly inferior to that of the treatment liquid A, but there was no problem in practical use.

In the case of the treatment liquid C, the bleeding of different color boundaries was slightly inferior to the case of the treatment liquid A, but there was no problem in practical use.

(Embodiment 2) FIG. 4B shows a color head unit used in this embodiment. The unit configuration is
S (treatment liquid) chip 2201 and Bk chip 2202
The C chip 2203, the M chip 2204, and the Y chip 2205 are fixed to the frame 2206. The intervals between the chips are 1/2 inch, and the chips are arranged at equal intervals in the direction of arrow X, which is the main scanning direction. The number of nozzles in each chip is 128, and the nozzle rows in each chip are arranged so as to be substantially orthogonal to the arrow X direction.

The pitch of each nozzle is about 70 μm, and 3
With a resolution of 60 dpi, a band for 128 nozzles can be recorded by one main scan.

About 80 pl of ink is ejected from each nozzle of the nozzle row of the Bk chip, and about 40 pl of ink is ejected from each nozzle of the nozzle row of each YMCS chip.

Here, when recording with the processing liquid,
The S and C heads use 64 lower nozzles,
The k, Y, and M heads use the upper 64 nozzles of the nozzle,
By setting the recording band width to 64 nozzles, the S and C heads perform recording before the Bk, Y and M heads.

A state of a reciprocal recording operation in which the recording operation is performed both forward and backward in the X direction, which is the main scanning direction, using the recording head having such a configuration will be described with reference to FIG.

STEP 1: First, the band 1 is recorded by the S chip and the C chip with a recording width of 64 nozzles in the forward path direction. After that, the recording medium is relatively moved in the sub-scanning direction by the recording width. Here, the S recording data is the logical sum data of the Y, M, and Bk data, which is to be recorded in the band 1 before, based on the Y, M, and Bk data, and the S data is recorded in advance. By this step, S is recorded on the recording medium in advance of the area for recording Y, M, Bk. After the recording operation, the recording medium is moved in the sub-scanning direction by the recording bandwidth.

STEP 2: The band 2 is recorded by the S chip and the C chip in the return direction. Here, the S recording data is Y, M, B, which should be recorded in band 2 in due course.
Based on k data, logical sum data of Y, M, Bk data is created and recorded as S data in advance. at the same time,
Band 1 is recorded with Y, M and Bk chips. In the area for recording Y, M, Bk data,
S has already been recorded in STEP 1. After the recording operation,
The recording medium is moved in the sub-scanning direction by the recording bandwidth.

STEP 3: The band 3 is recorded by the S chip and the C chip in the outward direction. Here, the S recording data is Y, M, B, which is to be recorded in band 3 before long.
Based on k data, logical sum data of Y, M, Bk data is created and recorded as S data in advance. at the same time,
Band 2 is recorded with Y, M and Bk chips. In the area for recording Y, M, Bk data,
S has already been recorded in STEP2. After the recording operation,
The recording medium is moved in the sub-scanning direction by the recording bandwidth.

Thereafter, by repeating the recording operation similarly, Y
The treatment liquid is always attached (recorded) in advance to the MBk recording area.

By recording this treatment liquid, a high-quality recorded image having water resistance, high reliability, less feathering, and high recording density was obtained.

For the C recording area to which S is not added,
Due to the characteristics of the C ink, it is highly reliable and has a high quality level with no practical problems in terms of feathering and recording density.

When the treatment liquid was changed to A, B and C,
When the treatment liquid A was used, the feathering was the least, the recording density was high, and a high-quality recorded image without blurring between different color boundaries was obtained.

The print quality of the treatment liquid B was slightly inferior to that of the treatment liquid A, but there was no problem in practical use.

In the case of the treatment liquid C, the bleeding at the boundary between different colors is slightly inferior to the case of the treatment liquid A, but there was no problem in practical use.

Further, in the case of using a special paper capable of recording sufficient water resistance and print quality without the use of a treating liquid,
By using all 128 nozzles of the 4-color head of BkCMY, it is possible to perform higher-speed recording.

(Embodiment 3) FIG. 4C shows a color head unit used in this embodiment. The unit configuration is
S (treatment liquid) chip 2101 and Bk chip 2102
And the CMY chip 2103 having an integrated structure,
The configuration is fixed to 104. The interval between chips is 1/2
Inches are arranged at equal intervals in the direction of arrow X, which is the main scanning direction. The number of nozzles in each chip is 160 for S and Bk, and 48 for Y, M, and C.
Further, between Y and M, and between M and C, there is an inter-color separation unit for 8 nozzles, which separates the respective colors. The nozzle row of each chip is arranged so as to be substantially orthogonal to the arrow X direction.

The pitch of each nozzle is about 70 μm, and 3
It is possible to print with a single main scan at a resolution of 60 dpi.

Here, in order to simplify the explanation, S, Bk
It is assumed that the number of nozzles is 144, the number of YMCS nozzles is 48, and there is no inter-color separation unit.

About 80 pl of ink is ejected from each nozzle of the nozzle row of the Bk chip, and about 40 pl of ink is ejected from each nozzle of the nozzle row of each YMCS chip.

FIG. 7 is a diagram showing a recording process in this embodiment.

STEP 1: First, band 1 is used with a recording width of 48 nozzles in the forward direction, and the S tip is the tip (bottom in the figure).
48 nozzles from the side, and C is 48
Record with the nozzle. After that, the recording medium is relatively moved in the sub-scanning direction by 48 nozzles, which is the recording width. Here, the S recording data is the logical sum data of the Y, M, and Bk data, which is to be recorded in the band 1 before, based on the Y, M, and Bk data, and the S data is recorded in advance. By this step, S is recorded on the recording medium in advance of the area for recording Y, M, Bk. After the recording operation, the recording medium is moved in the sub-scanning direction by the recording bandwidth.

STEP 2: The band 2 is recorded by the S chip and the C chip in the return direction. Here, the S recording data is Y, M, B, which should be recorded in band 2 in due course.
Based on k data, logical sum data of Y, M, Bk data is created and recorded as S data in advance. at the same time,
Band 1 is recorded with M and Bk chips (Bk uses middle 48 nozzles). STEP 1 is already recorded in S in the area for recording M and Bk data. After the recording operation, the recording medium is moved in the sub-scanning direction by the recording bandwidth.

STEP 3: The band 3 is recorded in the forward direction by the S chip and the C chip. Here, the S recording data is Y, M, B, which is to be recorded in band 3 before long.
Based on k data, logical sum data of Y, M, Bk data is created and recorded as S data in advance. at the same time,
Band 2 is recorded with M and Bk chips. In the area for recording M and Bk data, STE has already been recorded.
S is recorded in P2. At the same time, band 1 is recorded by the Y chip. In the area for recording M and Bk data in band 2 and the area for recording Y data in band 1,
S has already been recorded in STEP1 and STEP2.
After the recording operation, the recording medium is moved in the sub-scanning direction by the recording bandwidth.

Thereafter, by repeating the recording operation similarly, Y
S (treatment liquid) is always attached (recorded) prior to the MBk recording area.

By recording this S, a high-quality recorded image having water resistance, high reliability, less feathering, and high recording density was obtained.

For the C recording area to which S is not added,
Due to the characteristics of the C ink, it is highly reliable and has a high quality level with no practical problems in terms of feathering and recording density.

When the treatment liquids A, B and C were changed, when the treatment liquid A was used, the feathering was minimal, the recording density was high, and a high-quality recorded image having no bleeding between different color boundaries was obtained.

The print quality of the treatment liquid B was slightly inferior to that of the treatment liquid A, but there was no problem in practical use.

In the case of the treatment liquid C, the bleeding at the boundary between different colors is slightly inferior to the case of the treatment liquid A, but there was no problem in practical use.

FIG. 8 is a block diagram showing the control arrangement of the ink jet printing apparatus of the embodiment. Inkjet printing apparatus 10 receives character and image data to be printed (hereinafter referred to as image data) from the host computer.
0 is input to the reception buffer 401. Further, the data for confirming whether the data is correctly transferred and the data for notifying the operating state of the printing apparatus are transferred from the printing apparatus to the host computer. The data input to the reception buffer 401 is transferred to the memory unit 403 in the RAM form and temporarily stored under the control of the control unit 402 having a CPU. The mechanical control unit 404 is the control unit 4
Carriage 101 (see FIG. 1) in response to a command from 02.
A mechanical unit 405 such as a carriage motor or a line feed motor, which is a power source of the feed roller 109 (see FIG. 1), is driven. The sensor / SW control unit 406 is a sensor / SW unit 40 including various sensors and SWs (switches).
The signal from 7 is sent to the control unit 402. The display element control unit 408 includes a display element unit 4 including LEDs of a display panel group, a liquid crystal display element, and the like according to a command from the control unit 402.
The display of 09 is controlled. The head control unit 410 receives each of the heads 30K, 30 according to a command from the control unit 402.
C, 30M, 30Y, 30S are individually controlled. Also,
The temperature information indicating the state of each head is transmitted to the read control unit 402.

The control section 402 is provided with an image processing section 411 for performing image processing, which will be described later with reference to FIGS. 9 and 10.

(Others) In the present invention, as shown in FIG. 3, particularly in the ink jet printing system, means for generating heat energy as energy used for ejecting ink (for example, electrothermal conversion). (Body, laser beam, etc.), and brings excellent effects in an inkjet head and a printing apparatus of a system that causes a change in the ink state by the thermal energy. This is because such a method can achieve high density and high definition printing.

Regarding its typical structure and principle, see, for example, US Pat. No. 4,723,129 and US Pat. No. 4,740.
What is done using the basic principles disclosed in 796 is preferred. This method is a so-called on-demand type,
It can be applied to any of the continuous type, but especially in the case of the on-demand type, it can be applied to the sheet holding the liquid (ink) or the electrothermal converter arranged corresponding to the liquid path. By applying at least one drive signal corresponding to the print information and giving a rapid temperature rise exceeding nucleate boiling, heat energy is generated in the electrothermal converter, and film boiling occurs on the heat-acting surface of the inkjet head. This is effective because bubbles can be generated in the liquid (ink) corresponding to this drive signal one-to-one as a result.
The liquid (ink) is ejected through the ejection opening by the growth and contraction of the bubble to form at least one droplet. It is more preferable to make this drive signal into a pulse shape because bubbles can be immediately and appropriately grown and contracted, so that liquid (ink) ejection with excellent responsiveness can be achieved. As the pulse-shaped drive signal, US Pat. No. 4,463,359 is used.
Suitable are those described in U.S. Pat. No. 4,345,262. If the conditions described in US Pat. No. 4,313,124, which is an invention relating to the temperature rise rate of the heat acting surface, are adopted, more excellent printing can be performed.

As the constitution of the ink jet head, in addition to the combination constitution of the discharge port, the liquid passage, and the electrothermal converter (the linear liquid passage or the right-angled liquid passage) as disclosed in the above-mentioned respective specifications. The present invention also includes a configuration using US Pat. No. 4,558,333 and US Pat. No. 4,459,600, which disclose a configuration in which the heat acting portion is arranged in a bending region. In addition, Japanese Unexamined Patent Publication No. 59-123670 discloses a configuration in which a common slit is used as a discharge portion of the electrothermal converter for a plurality of electrothermal converters, and an opening for absorbing a pressure wave of thermal energy is provided. The effect of the present invention is effective even if the configuration corresponding to the ejection portion is disclosed in JP-A-59-138461. That is, according to the present invention, printing can be surely and efficiently performed regardless of the form of the inkjet head.

Furthermore, the present invention can be effectively applied to a full-line type ink jet head having a length corresponding to the maximum width of a printing material that can be printed by the printing apparatus. Such an inkjet head may have either a configuration that satisfies the length by a combination of a plurality of inkjet heads or a configuration that is one integrally formed inkjet head.

In addition, even in the case of the serial type as in the above example, an ink jet head fixed to the apparatus main body,
Alternatively, a replaceable chip-type inkjet head that can be electrically connected to the device body and supply ink from the device body by being attached to the device body, or an ink tank integrated with the inkjet head itself The present invention is also effective when the cartridge type inkjet head described above is used.

Further, it is preferable to add recovery means for the ink-jet head, preliminary auxiliary means, and the like, which are provided in the present invention as a configuration of the printing apparatus, because the effects of the present invention can be further stabilized. . Specific examples thereof include capping means for the inkjet head, cleaning means, pressurizing or suctioning means, electrothermal converter or other heating element or preheating means by a combination thereof, It is also effective to perform stable printing by performing a preliminary ejection mode in which ejection is performed separately from printing.

Regarding the type and number of ink jet heads to be mounted, for example, only one ink jet head is provided corresponding to a single color ink, or a plurality of inks having different print colors and densities are provided. A plurality of pieces may be provided. That is, for example, the print mode of the printing apparatus is not limited to the print mode of only the mainstream color such as black, but may be either integrally formed with the inkjet head or a combination of a plurality of colors, but a multicolor of different colors, The present invention is also extremely effective for a device provided with at least one of full colors by color mixing.

In addition, in the above-described embodiments of the present invention, the ink is described as a liquid, but it is an ink that solidifies at room temperature or lower and that softens or liquefies at room temperature, or an ink jet system. In general, the temperature of the ink itself is adjusted within a range of 30 ° C. or higher and 70 ° C. or lower to control the temperature of the ink so that the viscosity of the ink is within a stable ejection range. Anything can be used. In addition, the temperature rise due to the thermal energy is positively prevented by using it as the energy for the state change of the ink from the solid state to the liquid state, or the ink that solidifies in the standing state is used for the purpose of preventing the evaporation of the ink. In any case, the ink is liquefied by the application of the thermal energy according to the print signal, and the liquid ink is ejected, or the one that has already started to solidify when it reaches the printed material, The present invention is also applicable to the case of using an ink that has a property of being liquefied only by heat energy. The ink in such a case is as described in JP-A-54-56847 or JP-A-60-71260.
It may be configured to face the electrothermal converter in a state of being held as a liquid or a solid in the concave portion or the through hole of the porous sheet. In the present invention, the most effective one for each of the above-mentioned inks is to execute the above-mentioned film boiling method.

In addition, as a form of the printing apparatus provided with the printing mechanism using the liquid jet ink jet head of the present invention, in addition to the one used as an image output terminal of information processing equipment such as a computer, it is combined with a reader or the like. It may be a copying machine or a facsimile machine having a transmission / reception function.

FIG. 9 shows a printer according to the present invention, which is a word processor, a personal computer, a facsimile machine,
It is a block diagram showing a schematic structure when applied to an information processing apparatus having a function as a copying apparatus.

In the figure, reference numeral 1801 denotes a control unit for controlling the entire apparatus, which includes a CPU such as a microprocessor and various I / Os.
It has a port and outputs control signals, data signals, etc. to each section, and controls by inputting control signals and data signals from each section. A display unit 1802 displays various menus, document information, image data read by the image reader 1807, and the like on this display screen. A transparent pressure-sensitive touch panel 1803 is provided on the display unit 1802. By pressing the surface of the touch panel 1803 with a finger or the like, items or coordinate positions can be input on the display unit 1802.

1804 is an FM (Frequency M
sound source section, the music information created by a music editor or the like is stored in the memory section 1810 or the external storage device 18
The data is stored as digital data in 12, and is read from the memory or the like to perform FM modulation. FM
The electric signal from the sound source unit 1804 is converted into an audible sound by the speaker unit 1805. The printer unit 1806 is a printer to which the present invention is applied as an output terminal of a word processor, a personal computer, a facsimile machine, and a copying machine.

Reference numeral 1807 denotes an image reader unit for photoelectrically reading and inputting original data, which is provided in the middle of the original conveying path and reads various originals such as facsimile originals and copy originals.

Reference numeral 1808 denotes a facsimile (F) which transmits the original data read by the image reader unit 1807 by facsimile and receives and decodes the transmitted facsimile signal.
AX) transmitting / receiving unit, and has an interface function with the outside. Reference numeral 1809 denotes a telephone unit having various telephone functions such as a normal telephone function and an answering machine function.

Reference numeral 1810 denotes a ROM for storing a system program, a manager program, other application programs, etc., a character font, a dictionary, etc.
It is a memory unit including an application program loaded from the external storage device 1812, document information, a video RAM, and the like.

Reference numeral 1811 denotes a keyboard unit for inputting document information and various commands.

An external storage device using a floppy disk, a hard disk or the like as a storage medium.
Reference numeral 12 stores document information, music or voice information, a user application program, and the like.

FIG. 10 is a schematic external view of the information processing apparatus shown in FIG.

In the figure, reference numeral 1901 denotes a flat panel display using liquid crystal or the like, which displays various menus, graphic information, document information and the like. By pressing the surface of the touch panel 1803 on the display 1901 with a finger or the like, coordinate input or item designation input can be performed.
1902 is a handset used when the device functions as a telephone. The keyboard 1903 is detachably connected to the main body via a cord, and various document information and various data can be input. The keyboard 1903 is also provided with various function keys 1904 and the like. Reference numeral 1905 is an insertion port of a floppy disk into the external storage device 1812.

Reference numeral 1906 denotes a sheet placing section for placing an original read by the image reader section 1807. The read original is discharged from the rear of the apparatus. When receiving a facsimile or the like, the image is printed by the inkjet printer 1907.

In the above, the display unit 1802 is C
Although it may be RT, a flat panel such as a liquid crystal display using a ferroelectric liquid crystal is preferable. This is because in addition to being small and thin, it is possible to reduce the weight.

When the information processing apparatus functions as a personal computer or a word processor, the control unit 1801 processes various information input from the keyboard unit 1811 according to a predetermined program, and the printer unit 1
It is output to 806 as an image.

When functioning as a receiver of a facsimile apparatus, the facsimile information input from the FAX transmission / reception unit 1808 via the communication line is received by the control unit 1801 according to a predetermined program and processed by the printer unit 1806.
Is output as a received image.

When functioning as a copying apparatus, the image reader unit 1807 reads a document, and the read document data is transferred to the printer unit 18 via the control unit 1801.
It is output as a copied image in 06. In addition, when functioning as a receiver of a facsimile apparatus, the image reader unit 1
The document data read by 807 is the control unit 180.
After the transmission processing according to the predetermined program by 1,
It is transmitted to the communication line via the FAX transmission / reception unit 1808.

The information processing apparatus described above may be an integral type in which an ink jet printer is built in the main body as shown in FIG. 11, and in this case, it becomes possible to further enhance the portability. In the figure, parts having the same functions as those in FIG. 10 are designated by the corresponding reference numerals.

By applying the printing apparatus of the present invention to the multifunctional information processing apparatus described above, a high-quality printed image can be obtained at high speed and with low noise.
It is possible to further improve the function of the information processing device.

[0168]

According to the present invention, it is possible to obtain an image having a high printing speed, excellent water resistance and color development, and having no blur between colors.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an inkjet recording apparatus applied to the present invention.

FIG. 2 is a schematic perspective view of an inkjet head applied to the present invention.

FIG. 3 is an enlarged cross-sectional view of an inkjet head applied to the present invention.

4A and 4B are schematic top views of an inkjet head unit applied to the present invention, where FIG. 4A is the inkjet head unit used in Example 1, FIG. 4B is the inkjet head unit used in Example 2, and FIG. ) Indicates the inkjet head units used in Example 3, respectively.

5A and 5B are explanatory views for explaining a state of reciprocal recording operation of the head of FIG.

FIG. 6 is an explanatory diagram illustrating a state of a reciprocal recording operation of the head of FIG. 4 (B).

FIG. 7 is an explanatory diagram illustrating a state of a reciprocal recording operation of the head in FIG. 4C.

FIG. 8 is a block diagram showing a control configuration of the inkjet printing apparatus according to the embodiment.

FIG. 9 is a block diagram showing an example of an information processing system using the inkjet printing apparatus of the present invention.

FIG. 10 is an external perspective view of an information processing system using the inkjet printing apparatus of the present invention.

FIG. 11 is an external view showing another example of the information processing system using the inkjet printing apparatus of the present invention.

[Explanation of symbols]

20K, 20C, 20M, 20Y Ink tank 20S Treatment liquid tank 30 Recording head 30K, 30C, 30M, 30Y, 30S Inkjet head 31 Heating element 32 Common liquid chamber 33 Substrate 34 Partition wall 35 Ink drop 36 Protective film 37 Discharge port 100 Recording device 101 carriage 102 head case 103 recording head unit 104 guide shaft a 105 guide shaft b 106 recording medium 107 switch unit and display unit 108 platen 109 feed roller 110 recovery system unit 401 reception buffer 402 control unit 403 memory unit 404 mechanical control unit 405 Mechanical section 406 Sensor / SW control section 407 Sensor / SW section 408 Display element control section 409 Display element section 410 Head control section 411 Image processing section 18 1 control unit 1802 display unit 1803 touch panel 1804 FM sound source unit 1805 speaker unit 1806 printer unit 1807 image reader unit 1808 transmission / reception unit 1809 telephone unit 1810 memory unit 1811 keyboard unit 1812 external storage device 1901 flat panel display 1902 handset 1903 keyboard 1904 function key 1905 Floppy disk insertion slot 1906 Paper placement section 1907 Inkjet printer 2101, 2201, 2301 Treatment liquid chip 2102, 2202, 2302 Black (Bk) chip 2103, 2203, 2303 Cyan (C) chip 2104, 2204, 2304 Magenta (M) Chip 2105, 2205, 2305 Yellow (Y) chip 2306 Frame

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI technical display location B41M 5/00 B41J 3/04 103B (72) Inventor Jiro Moriyama 3-30 Shimomaruko, Ota-ku, Tokyo No. 2 Canon Inc.

Claims (29)

[Claims] 1. An inkjet recording method in which recording is performed on both the forward and return paths of a recording nozzle array in the main scanning direction, wherein recording is performed by applying a treatment liquid and recording by not applying a treatment liquid according to a recording image. In the ink jet recording method for selecting and recording, the recording of the treatment liquid and the recording of the color to which the treatment liquid is not applied are recorded at a recording position prior to the recording of the color to which the treatment liquid is applied. And an inkjet recording method. 2. An inkjet recording method for performing recording on both the forward and return paths of a recording nozzle array in the main scanning direction, wherein recording is performed with a treatment liquid and recording without a treatment liquid according to a recording image. In the inkjet recording method for selecting and recording, a first nozzle row assigned for a treatment liquid, a second nozzle row assigned for an ink of a color to which the treatment liquid is not applied, and a treatment liquid applied A third nozzle row allocated for ink for recording a color to be recorded, the first nozzle row includes a treatment liquid recording unit, and the first, second, and third nozzle rows have a main scanning direction. In the recording advancing path that moves by the scanning bandwidth in the sub-scanning direction orthogonal to the main scanning direction between the forward path and the backward path, the first nozzle row and the second nozzle row precede the third nozzle row. In position An ink jet recording method characterized by controlling so as to record. 3. The ink jet recording method according to claim 2, wherein the recording of the second nozzle row is controlled so as to be performed in the same scan as that of the first nozzle row. 4. The ink jet recording method according to claim 1, wherein the treatment liquid is adhered to a recording area of ink for recording a color or the material recording area and its vicinity. 5. The inkjet recording method according to claim 1, wherein the treatment liquid improves water resistance of a recorded image. 6. The ink jet recording method according to claim 1, wherein the treatment liquid reduces a blur in a boundary between different colors of a recorded image. 7. The ink jet recording method according to claim 1, wherein the treatment liquid improves a print quality of a recorded image. 8. The inkjet recording method according to claim 1, wherein the treatment liquid contains at least one kind of cationic substance. 9. The ink jet recording method according to claim 8, wherein the treatment liquid contains a low molecular weight cationic surfactant and polyallylamine. 10. The ink jet recording method according to claim 1, wherein the color of the ink for recording the color is black, cyan, magenta, or yellow. 11. The ink jet recording according to claim 1, wherein the ink for recording a color to which the treatment liquid is not applied contains a dye having a carboxyl group as a solubilizing group as a coloring material. Method. 12. The dye having a carboxyl group is p
The inkjet recording method according to claim 11, which exhibits solubility dependence with respect to H. 13. The ink jet recording method according to claim 1, wherein the ink for recording a color to which the treatment liquid is not applied contains an oil-soluble dye as a coloring material. 14. The ink jet recording method according to claim 1, wherein the ink for recording a color to which the treatment liquid is not applied contains a cationic dye as a coloring material. 15. The ink jet recording method according to claim 1, wherein the ink for recording a color to which the treatment liquid is not applied contains a pigment as a coloring material. 16. A main scanning direction of a recording nozzle array,
This is an inkjet recording method that performs recording on both the forward and return paths. In an inkjet recording apparatus that performs recording by selecting recording with or without the treatment liquid depending on the recorded image, the treatment liquid is ejected. And a second ejecting section that ejects ink that records a color that does not apply the treatment liquid.
An ejecting section, a third ejecting section that ejects ink for recording a color to which the treatment liquid is applied, a frame provided with the first, second, and third heads, the first, second, and Control means for controlling the ejection of the treatment liquid or the ink from the nozzles of the third head, and the first and second heads on the frame precede the third ejection part in the recording progression path. Is disposed on the side, and the control unit applies the ejection of ink to which the treatment liquid is not applied from the nozzle row of the second ejection unit, and applies the treatment liquid from the nozzle row of the third ejection unit. The inkjet recording apparatus is characterized in that the recording is controlled to be performed at a preceding recording position by ejecting the ejected ink. 17. The control means performs the ejection of the ink to which the treatment liquid is not applied from the nozzle of the second ejection portion in the same scan as the ejection of the treatment liquid from the nozzle of the first ejection portion. The inkjet recording apparatus according to claim 16, which is controlled. 18. An ink jet recording apparatus for performing recording by selecting a recording with a treatment liquid and a recording without a treatment liquid according to a recording image, a first ejection unit for ejecting a treatment liquid, and a treatment. Second ejection of ink for recording colors that do not apply liquid
An ejecting section, a third ejecting section for ejecting ink for recording a color to which the treatment liquid is applied, a frame provided with the first, second and third ejecting sections, the first, second and Control means for controlling the ejection of the treatment liquid or the ink from the nozzles of the third ejection portion, and the first, second and third ejection portions on the frame respectively precede in the recording progression path. A first portion and a remaining second portion, wherein the control means discharges the processing liquid from the nozzle of the first portion, and the second discharging portion Ink for recording a color to which the treatment liquid is not applied is ejected from the nozzle of the first portion, and the third ejection portion ejects the ink of the color to which the treatment liquid is applied from the nozzle row of the second portion. Inkjet recording apparatus characterized by controlling as follows 19. The control means causes the nozzle of the second ejecting unit to eject the ink not applied with the treating liquid in the same scan as the ejecting of the treating liquid from the nozzle of the first ejecting unit. The inkjet recording apparatus according to claim 18, which is controlled. 20. The ejection unit is an ejection unit that ejects ink or treatment liquid by utilizing thermal energy, and is provided with a thermal energy generation unit for generating thermal energy to be given to the ink. Claims 16 to 1
9. The inkjet recording device according to any one of 9. 21. The ink jet recording apparatus according to claim 16, wherein the ejection portion is attachable to and detachable from the recording apparatus main body. 22. A printed matter, which is printed by using the ink jet recording method according to any one of claims 1 to 15. 23. A printed matter printed by using the ink jet recording apparatus according to claim 16. 24. With respect to the main scanning direction of the recording nozzle array,
An inkjet recording method for performing recording on both the forward path and the return path, in an inkjet head unit for an inkjet recording apparatus that performs recording by selecting recording with a treatment liquid and recording without a treatment liquid according to a recorded image. A first head for ejecting a treatment liquid, and a second head for ejecting an ink for recording a color to which the treatment liquid is not applied.
Head, a third head for ejecting ink for recording a color to which the treatment liquid is applied, and a frame provided with the first, second and third heads, and the first and second heads Are positioned on the frame so as to perform recording at a recording position preceding the third head in the recording progress path. 25. In the main scanning direction of the recording nozzle array,
An inkjet recording method for performing recording on both the forward path and the return path, in an inkjet head unit for an inkjet recording apparatus that performs recording by selecting recording with a treatment liquid and recording without a treatment liquid according to a recorded image. A first head for ejecting a treatment liquid, and a second head for ejecting an ink for recording a color to which the treatment liquid is not applied.
Head, a third head for ejecting ink for recording a color to which the treatment liquid is applied, and a frame provided with the first, second and third heads. An ink jet head unit, wherein each of the second and third heads has a first nozzle portion that should be located at a preceding recording position in the recording progression path and a remaining second nozzle portion. 26. The inkjet head unit according to claim 24, further comprising an ink tank. 27. The ink jet head unit according to claim 26, wherein the ink tank is filled with ink. 28. The ink jet head unit according to claim 26, wherein the ink tank is refilled with ink. 29. An ink refilling method for an ink jet cartridge, wherein ink is introduced into the ink tank of the ink jet unit according to claim 26 by using an ink introducing means.