JPH0726474A - INKJET PRINTING METHOD AND PRINTED MEDIUM USED IN THE METHOD - Google Patents

Abstract

PURPOSE:To obtain a deep-colored print without any staining of white areas by attaching fabric containing a cationic substance to the surface of a substrate coated with a tacky agent, carrying out the ink jet printing and then washing the resultant printed substrate with a wash liquid containing a cationic blocking agent. CONSTITUTION:This medium to be printed is obtained by coating a substrate (preferred example: paper or a synthetic resin film) with a polymer such as PVA or a copolymer resin, natural rubber or a synthetic rubber as a tacky agent, subjecting a cationic substance, e.g. a reactive quaternary amine compound to reactional addition to fiber such as cotton, silk, rayon, acetate and synthetic fiber or coating the fiber with cationic inorganic particles and a binder (e.g. gum arabic, casein or glue) and attaching the fabric of the fiber to the resultant surface of the substrate. The obtained medium to be printed is used to carry out the ink jet printing and then washed with a wash liquid containing a cationic blocking agent (e.g. a water-soluble fluorescent agent) to afford a clear print having a high coloring density without any staining of white areas and bleeding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to printing on cloth using an ink jet printer, and more particularly to a printing method suitable for printing on cloth.

[0002]

2. Description of the Related Art In recent years, an ink jet printing printing method has been actively researched, which enables easy production of a wide variety of products in small quantities as compared with screen printing and roller printing. However, it is difficult to directly use an ink jet printer used for printing on paper, OHP sheet, or the like for printing as it is in offices or individuals. Therefore, there are still many problems to be solved, and there is a need for improvement. It was

That is, since the structure and type of the optimum color material differ depending on the type of cloth, it is necessary to change the type of ink used for each cloth, and it is used for conventional office or personal ink jet printers. Since the ink used is designed to be printed on paper or OHP film, if used as it is, the types of cloth that can be printed will be limited, and the color density after printing will be low. The undyed part may be contaminated in the washing step after printing. Another problem is that a cloth having an unstable shape unlike paper cannot be easily transported. In order to solve problems such as transportability, a conventional method of inkjet printing on cloth is to temporarily bond the cloth to a non-stretchable flat support coated with an adhesive and print with a printer (special (Kaisho 63-6183) and a method of applying ink jet printing by pasting a cloth on a sheet having an adhesive layer in which an adhesive and a migration inhibitor are mixed (JP-A-2-68372). These conventional techniques have been devised so as to improve the transportability of a cloth in a printer or to suppress the irregular bleeding of ink during printing. However, these conventional techniques have not yet obtained sufficient effects.

[0004]

SUMMARY OF THE INVENTION Therefore, the object of the present invention is not limited to the kinds of cloths that can be printed, and it is not necessary to change the ink used according to the kinds of cloths, especially for office and personal use. Inkjet printing method which can be applied to the inkjet printer as it is, has a high color density after printing, and can provide a practical printed material in which the undyed portion is not contaminated due to the washing step after printing. And to provide a print medium used in such a method.

[0005]

The above object is achieved by the present invention described below. That is, the present invention is a method of printing by applying an ink to a print medium by an inkjet method, in which the pressure-sensitive adhesive is applied on one side of a substrate on which the pressure-sensitive adhesive is applied. A step of applying the ink to the print medium to which a cloth containing a cationic substance is attached, a step of washing the print medium to which the ink is applied with wash water containing a cationic blocking agent, An inkjet printing method comprising: a step of peeling the washed cloth of the print medium from a base material; and a step of drying the cloth.

Further, the present invention is a method for printing by applying ink to a print medium by an ink jet system, wherein the surface of the substrate coated with the adhesive is coated with the adhesive. A step of applying the ink to the print medium on which a cloth containing a cationic substance is adhered, and washing the print medium to which the ink is applied with washing water containing a cationic blocking agent An inkjet printing method, comprising: a step of drying, a step of drying the washed print medium, and a step of peeling the dried cloth of the print medium from a substrate.

Further, the present invention is a method of printing by applying ink to a print medium by an ink jet system, wherein the surface of the substrate coated with the adhesive is coated with the adhesive. A step of applying the ink to the print medium on which a cloth containing a cationic substance is attached, a step of peeling the cloth of the print medium to which the ink has been applied from a substrate, and the cloth An inkjet printing method comprising: a step of washing with washing water containing a cation blocking agent; and a step of drying the washed cloth.

Furthermore, the present invention is a printing medium and an inkjet printing apparatus used in the above inkjet printing method.

The present invention will be described in detail below.

The main feature of the ink jet printing method of the present invention is, firstly, that the cloth contains a cationic substance so that the ink used in a commercially available ink jet printer can print on all kinds of cloth. Yes, secondly, in order to improve the transportability of the cloth on the printer, it is to adhere the base material coated with the adhesive to the back of the cloth, and thirdly, in the washing step after the cloth is printed. In order to prevent the undyed portion from being contaminated, washing with rinsing water containing a cation blocking agent is performed.

The cloth used in the ink jet printing method of the present invention is not particularly limited, and cotton, silk, nylon, rayon, acetate, polyester and a mixed cloth thereof are used. The cloth is characterized by containing a cationic substance.

The cationic substance is contained in the fabric before it is applied onto the substrate. There are three methods as described below. Reactive quaternary amine compound is reactively added to the fiber. Cationic inorganic fine particles and a binder are applied (combined with a crosslinking agent). Anion dyeable polymer is applied. (Combination with Crosslinking Agent) Specific examples of the reactive quaternary amine compound include the following compounds.

[0013]

[Outer 1]

[0014]

[Outside 2]

[0015]

[Outside 3] (X represents halogen such as Cl or Br.)

Examples of the cationic inorganic fine particles include alumina sol (particle size: 5 mμ to 200 mμ), and specific examples thereof include Aluminazole 100, Alumina sol-200, and Alumina sol-520 manufactured by Nissan Chemical Co., Ltd.

Further, examples of the resin binder to be used in combination with the cationic inorganic fine particles from now on include gum arabic, casein, glue, soybean protein, urea resin, melamine resin, polyallylamide, polyamide, polyethyleneimine, sodium polyacrylate, Examples thereof include polyvinyl alcohol, gelatin, starch, sodium alginate, polyvinylpyrrolidone, keratin, carboxymethyl cellulose, methyl cellulose, styrene / budadiene latex, and styrene / maleic anhydride copolymer.

Examples of the anion dyeable polymer substance include gum arabic, casein, glue, soybean protein, urea resin, melamine resin, polyacrylamide, polyamide, polyurethane, polyethyleneimine, quaternary amino group-containing polymer and the like.

As the crosslinking agent, a bifunctional epoxy compound,
Examples thereof include bisacrylamide, dimethylol ethylene urea, dimethylol propylene urea, dimethylol dihydroxy ethylene urea, and methylated dimethylol dimethoxy ethylene urea.

A cationic substance is contained in the cloth by applying a solution containing these compounds onto the cloth, or impregnating the cloth with the solution, followed by heating and curing, followed by washing with water and drying. The amount of these substances applied to the cloth varies depending on the treatment method and the kind of the compound applied, but is generally preferably about 0.01 to 30% by weight based on the weight of the cloth.

Further, in order to improve ink bleeding and absorbability on the surface of the cloth, the cloth may be further coated or impregnated with a water-soluble salt, a water-soluble resin, a water-repellent compound or the like. As the water-soluble salts, sodium chloride, sodium sulfate, sodium phosphate, sodium carbonate, sodium acetate and the like are used, and as the water-repellent compound, a fluorine-based compound, a silicon-based compound and the like are used.

The cloth thus obtained becomes a print medium used in the ink jet printing method of the present invention by being bonded to a base material coated with an adhesive.

As the substrate, paper, synthetic resin film, metal foil plate and laminates thereof are used.
Paper with a thickness of 30 to 300 μm or a synthetic resin film is most suitable.

The substance contained in the pressure-sensitive adhesive coated on such a substrate may be a known substance, for example, a homopolymer resin such as polyvinyl alcohol, polyvinyl ether, polyacrylate, polyisobutylene, or a copolymer thereof. Adhesive resins made of polymer resins, and adhesive base materials such as natural rubber, styrene-butadiene rubber and butadiene-acrylonitrile rubber are used as polyterpene-based resins and their modified products, natural rosins and their modified products, and other aliphatic or aromatic substances. Examples thereof include various pressure-sensitive adhesives obtained by adding tackifiers made of various group-based resins.

Further, an inorganic pigment such as talc or calcium carbonate may be added to improve the spinnability of these pressure-sensitive adhesives, or a fluorine-containing compound may be used to enhance the peeling property.

The method of applying the pressure-sensitive adhesive to the substrate can be carried out by using an ordinary coating apparatus, and any of the whole surface coating, the line coating and the dot coating can be used, but the most suitable for the present invention. Is the entire surface coating.

The method of sticking the cloth to the base material coated with the pressure-sensitive adhesive is to put the cloth on the surface of the base material coated with the pressure-sensitive adhesive and pass it between two rolls, or press it with a press machine. , Can be done by applying uniform pressure to the entire surface of the cloth.

Inkjet printing is performed using the print medium of the present invention.

In the ink jet print of the present invention, the ink used in a usual ink jet printer can be used as it is, and as the dye contained in the ink, any of reactive dye, acid dye and direct dye can be used. it can. An acid dye is particularly preferable, and a printed matter having good color development can be obtained.

For printing, a commercially available ink jet printer may be mounted with the printing medium of the present invention to carry out ordinary printing.

The print medium of the present invention is, for example, A4 size.
The size of a plate or the like can be used and printing can be performed like ordinary paper or OHP, or can be rolled and continuously printed.

After the printed medium to be printed is heat-treated as required, it is washed with water → drying → peeling the cloth from the base material, peeling the cloth from the base material → washing → drying, or washing with water →
The printed matter can be obtained by treating the cloth in any of the steps of peeling from the base material → drying. In the ink jet printing method of the present application, wash water containing a cation blocking agent is used in the water treatment. Is characterized by.

As a result, stains on the unprinted portion of the cloth, that is, so-called white field contamination are prevented, and further, bleeding of the ink todd is suppressed and a clear image can be obtained.

Any cation blocking agent may be used as long as it is an anionic compound, but a particularly preferable one is a water-soluble fluorescent brightening agent, for example, C is used as a stilpen type.
I. Fluoressen Brightener 24, 84, 85, 9
0, 225, 351 and the like, and CI. As fluorescein brightener 48, triazole type, CI. Fluorescence Brightener 4
0, 46 and the like. The cation blocking agent is preferably contained in washing water in an amount of about 0.1 to 10 g / l.

The obtained printed matter is cut into a desired size, if necessary, and the cut pieces are subjected to steps such as sewing, adhesion, and welding to obtain a final processed product. Thus, processed products such as neckties and handkerchiefs can be obtained.

As a method and apparatus suitable for printing using the print medium of the present invention, for example, thermal energy corresponding to a signal is applied to the ink in the chamber of the head, and ink droplets are generated by the thermal energy. The generating method and apparatus are mentioned.

An example of the head structure, which is the main part of the apparatus, is shown in FIGS. 1, 2 and 3.

The head 13 is a glass, ceramic or plastic plate having a groove 14 through which ink passes, and a heating head 15 used for thermal printing (a head is shown in the drawing, but is not limited to this). It is obtained by bonding and. The heating head 15 includes a protective film 16 made of silicon oxide, aluminum electrodes 17-1 and 17-.
2, heating resistance layer 18 and heat storage layer 1 formed of nichrome or the like
9. A substrate 20 having a good heat dissipation property such as alumina.

The ink 21 has a discharge orifice (fine hole) 2
2, the meniscus 23 is formed by the pressure P.

Here, when an electric signal is applied to the electrodes 17-1 and 17-2, the area indicated by n of the heating head 15 rapidly generates heat, and bubbles are generated in the ink 21 in contact therewith, and The meniscus 23 is projected by the pressure, the ink 21 is ejected, becomes an ink droplet 24 from the orifice 22, and is ejected toward the print medium 25.

FIG. 3 shows an external view of a multi-head in which a large number of the heads shown in FIG. 1 are arranged. The multi-head is manufactured by closely adhering a glass plate 27 having multi-grooves 26 and a heating head 28 similar to that described in FIG.

Incidentally, FIG. 1 shows the head 1 along the ink flow path.
3 is a cross-sectional view of FIG. 3, and FIG. 2 is a sectional view taken along the line AB of FIG. 1.

FIG. 4 shows an example of an ink jet printing apparatus incorporating such a head.

In FIG. 4, reference numeral 61 denotes a blade as a wiping member, one end of which is held by a blade holding member to become a fixed end, which is in the form of a cantilever. The blade 61 is disposed at a position adjacent to the print area of the head, and in the case of this example, is held in a protruding form in the moving path of the head. Reference numeral 62 denotes a cap, which is provided in a home position adjacent to the blade 61, and has a configuration that moves in a direction perpendicular to the moving direction of the head and contacts the ejection port surface to perform capping. 63 more
Is an absorber provided adjacent to the blade 61, and like the blade 61, is held in a protruding form in the movement path of the head. The blade 61, the cap 62, and the absorber 63 constitute a discharge recovery section 64, and the blade 6
Water and dust are removed from the ink ejection port surface by the 1 and the absorber 63.

Reference numeral 65 denotes a head having ejection energy generating means, which ejects ink onto the print medium facing the ejection port surface where the ejection ports are arranged for printing, and 66 a head 65.
Is a carriage for carrying the head and moving the head 65. The carriage 66 slidably engages with the guide shaft 67, and a part of the carriage 66 is connected (not shown) to a belt 69 driven by a motor 68. As a result, the carriage 66 can move along the guide shaft 67, and the head 65 can move the print area and its adjacent area.

Reference numeral 51 is a cloth feeding portion for inserting a print medium, and 52 is a cloth feed roller driven by a motor (not shown). With these configurations, the print medium is applied to the position facing the ejection port surface of the head, and is discharged to the discharge section provided with discharge rollers 53 as the printing progresses.

In the above structure, when the head 65 returns to the home position after printing is completed, the cap 62 of the head recovery section 64 is retracted from the moving path of the head 65, but the blade 61 is projected in the moving path. As a result, the ejection port surface of the head 65 is wiped. When the cap 62 comes into contact with the ejection surface of the head 65 for capping, the cap 62 moves so as to project into the movement path of the head.

When the head 65 moves from the home position to the print start position, the cap 62 and the blade 61 are at the same position as the above-mentioned wiping position. As a result, the ejection opening surface of the head 65 is wiped even during this movement.

The above-described movement of the head to the home position is performed not only at the end of printing or at the time of ejection recovery, but also at the home position adjacent to the print area at a predetermined interval while the head is moving in the print area for printing. It moves, and the wiping is performed along with this movement.

FIG. 5 is a diagram showing an example of an ink cartridge in which ink is supplied to the head through an ink supply member, for example, a tube. Here, 40 is an ink containing portion containing the ink for supply, for example, an ink bag, and a rubber stopper 42 is provided at the tip thereof. By inserting a needle (not shown) into this stopper 42, the ink in the ink bag 40 can be supplied to the head. 44
Is an absorber that receives waste ink. It is preferable for the present invention that the ink containing portion has a liquid contact surface with ink formed of polyolefin, particularly polyethylene. The ink jet printing apparatus used in the present invention is not limited to the above-described head and ink cartridge which are separate bodies, but may be preferably used as an integrated one as shown in FIG.

In FIG. 6, reference numeral 70 denotes a print unit in which an ink containing portion containing ink, for example, an ink absorber is contained, and the ink in the ink absorber has a plurality of orifices. Head part 7
It is configured to be ejected as an ink droplet from 1. Polyurethane is preferably used as the material of the ink absorber. Reference numeral 72 denotes an atmosphere communication port for communicating the inside of the print unit with the atmosphere. This print unit 7
Reference numeral 0 is used in place of the head shown in FIG. 4, and is removable from the carriage 66.

[0052]

EXAMPLES Next, the present invention will be described more specifically with reference to examples.

Example 1 An aqueous solution of kayakryl resin T-180 (water-soluble pressure-sensitive adhesive mainly composed of polyacrylic) was processed with a doctor knife coater and the back surface was processed with a fluorine-based resin (thickness: about 8).
0 μm. 70 g / m ² ) of the surface. Then 80
It was dried with hot air at ℃ and wound up.

This substrate and the above specific example (3) (X = C
A cotton lawn treated with the compound shown in 1) was put together and passed through a gap between two rubber rolls to form a print medium.

The print medium was cut into A4 size sheets and subjected to multicolor printing using a commercially available inkjet color printer (BJC-820J manufactured by Canon Inc.).

Immediately after completion of printing, the cloth is peeled off from the base material, and CI Fluoressen Brightener 84 0.1
% Water solution and then dried.

A color image of sufficient density was vividly printed on the cotton loan. Also, there was no stain on the white part where ink did not adhere.

Example 2 An aqueous solution of kayakryl resin H-900 (a water-soluble adhesive mainly composed of polyacrylic) was applied onto a Mylar film having a thickness of about 70 μm using a silk screen, and 8
It was dried with hot air at 0 ° C.

The substrate and a polyester georgette coated with a mixture of a polyamide resin and dimethyloldihydroxyethyleneurea were put together and bonded between two rubber rolls to obtain a print medium.

Then, in the same manner as in Example 1, the sheet was cut into a size of A4 size, and multicolor printing was performed using a commercially available ink jet color printer (BJC-820J manufactured by Canon Inc.).

Immediately after printing, the cloth is peeled off from the base material, and CI Fluoressen Brightener 84 0.2
% Water solution and then dried.

A color image of sufficient density was vividly printed on the polyester georgette. Also, there was no stain on the white part where ink did not adhere.

Example 3 The adhesive-coated paper prepared in the same manner as in Example 1 and the rayon cloth treated with the compound of the above-mentioned specific example (2) (X = Br) were combined to form two strips. The material was passed through a rubber roll and adhered to obtain a print medium.

Then, in the same manner as in Example 1, the sheet was cut out to a size of A4 size and subjected to multicolor printing by using a commercially available ink jet color printer (BJC-820J manufactured by Canon Inc.).

Immediately after printing, the cloth is peeled off from the base material, and CI Fluoressen Brightener 40 0.0
It was thoroughly washed with a 5% aqueous solution and then dried.

A color image having a sufficient density was vividly printed on the rayon cloth. Also, there was no stain on the white part where ink did not adhere.

Example 4 A polyester / cotton blend (65/35) fabric was padded with an aqueous solution containing 4% by weight of Nissan Chemical Industries Aluminasol 200 and 0.5% of polyvinyl alcohol (squeeze ratio: 8).
0%), cured at 130 ° C., and then adhered to the adhesive-coated Mylar film used in Example 2,
A print medium was obtained.

Then, in the same manner as in Example 1, the sheet was cut out into a size of A4 size and subjected to multicolor printing by using a commercially available inkjet color printer (BJC-820J manufactured by Canon Inc.).

Immediately after printing, the cloth is peeled off from the base material, and CI Fluoressen Brightener 48 0.0
It was thoroughly washed with a 3% aqueous solution and then dried.

On the polyester / cotton blended fabric, a color image of sufficient density without unevenness was vividly printed. Also, there was no stain on the white part where ink did not adhere.

Example 5 An adhesive-coated paper prepared in the same manner as in Example 1 was combined with a silk habutae treated with the compound of the above-mentioned specific example (9) (X = Cl), It adhered through between two rubber rolls, and it was set as the printing medium.

Then, in the same manner as in Example 1, the sheet was cut into a size of A4 size and subjected to multicolor printing by using a commercially available inkjet color printer (BJC-820J manufactured by Canon Inc.).

Immediately after the printing is completed, the cloth is peeled off from the base material, and CI Fluorescent Brightener 84 (0.
It was thoroughly washed with a 02% aqueous solution and then dried.

A color image with sufficient density was vividly printed on the silk wing double. Also, there was no stain on the white part where ink did not adhere.

Comparative Example 1 In Example 1, CI Fluoressen Brightener 8 was used.
A printed medium was prepared in the same manner as in Example 1 except that 4 was not used.

Then, in the same manner as in Example 1, the sheet was cut into a size of A4 size, and multicolor printing was performed using a commercially available ink jet color printer (BJC-820J manufactured by Canon Inc.).

Immediately after printing, wash thoroughly with water,
The fabric was then stripped from the substrate and dried.

The density of the color image on the cotton loan was sufficient, but the ink adhered to the white part where no ink adhered, the stain was conspicuous, and the sharpness of the edge of the image was poor. It became a thing.

Comparative Example 2 A printed medium was prepared in the same manner as in Example 5 except that untreated silk habutae were used instead of the silk habutae treated in Example 5.

Then, in the same manner as in Example 1, the sheet was cut out into a size of A4 size and subjected to multicolor printing using a commercially available inkjet color printer (BJC-820J manufactured by Canon Inc.).

After the completion of printing, the product was heated and dried at 80 ° C. for 30 minutes, thoroughly washed with water, and then the cloth was peeled from the substrate and dried.

The color image on the obtained silk wing double layer was not practical because the density was insufficient.

[0083]

As described above, according to the present invention,
It is not necessary to change the ink used according to the type of cloth, and printing with good operability is possible. Further, according to the present invention, a clear printed matter having a high color density can be obtained even when it is applied as it is to a commercially available office or personal inkjet printer, and furthermore, textile printing can be performed in a simple process.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a head portion of an inkjet printing apparatus.

FIG. 2 is a cross-sectional view of a head portion of an inkjet printing apparatus.

FIG. 3 is an external perspective view of a head in which the head shown in FIG. 1 is multi-headed.

FIG. 4 is a perspective view showing an example of an inkjet printing apparatus.

FIG. 5 is a vertical sectional view of an ink cartridge.

FIG. 6 is a perspective view of a print unit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fumi Takade 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Tomoya Yamamoto 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon (72) Inventor Mariko Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (17)

[Claims] 1. A method for performing printing by applying ink to a print medium by an inkjet method, wherein a cationic substance is applied to a surface of the base material coated with an adhesive agent, the surface being coated with the adhesive agent. A step of applying the ink to the print medium to which a cloth containing is attached, a step of washing the print medium to which the ink is applied with a cleaning liquid containing a cation blocking agent, An inkjet printing method comprising: a step of separating a cloth of a print medium from a substrate; and a step of drying the cloth. 2. A method for performing printing by applying ink to a print medium by an inkjet method, wherein a cationic substance is applied to a surface of the base material coated with the pressure sensitive adhesive, the surface coated with the pressure sensitive adhesive. A step of applying the ink to the print medium to which a cloth containing is attached, a step of washing the print medium to which the ink is applied with a cleaning liquid containing a cation blocking agent, An ink jet printing method comprising: a step of drying a print medium; and a step of separating the dried cloth of the print medium from a substrate. 3. A method of printing by applying ink to a print medium by an inkjet method, comprising: coating a surface of a substrate coated with an adhesive with a cationic substance. A step of applying the ink to the print medium to which the cloth containing is attached, a step of separating the cloth of the print medium to which the ink is applied from a substrate, and a cloth containing a cationic sequestrant An inkjet printing method comprising: a step of washing with a washing liquid; and a step of drying the washed cloth. 4. The ink jet printing method according to claim 1, wherein the cloth is cotton, silk, rayon, acetate, nylon, polyester fiber cloth, or a mixed spinning cloth thereof. 5. The ink jet printing method according to claim 1, wherein the cation blocking agent is a water-soluble fluorescent brightening agent. 6. The inkjet printing method according to claim 1, wherein the substrate is paper or a plastic film. 7. The inkjet printing method according to claim 1, wherein after the step of applying the ink to the print medium, a washing step is performed after a step of heating the print medium. 8. The inkjet printing method according to claim 1, wherein the inkjet method is an inkjet method using heat energy. 9. A print medium, wherein a cloth containing a cationic substance is adhered to a surface of the base material coated with an adhesive, the surface coated with the adhesive. 10. The print medium according to claim 9, which is for inkjet printing. 11. The print medium according to claim 10, which is washed with a liquid containing a cation blocking agent after the ink is applied. 12. A printed matter printed by the inkjet printing method according to claim 1. 13. A processed product obtained by further processing the printed matter according to claim 12. 14. The processed product is obtained by cutting the printed matter into a desired size and subjecting the cut pieces to a step of obtaining a final processed product. Processed products. 15. The processed product according to claim 14, wherein the step for obtaining the final processed product is sewing. 16. An ink containing unit containing ink, an ink applying unit having a head unit for ejecting the ink onto the print medium according to claim 9, and the print applied with the ink. An inkjet printing apparatus comprising: a medium or a means for washing the cloth separated from the base material of the printing medium with a washing liquid containing a cationic blocking agent. 17. The ink jet printing apparatus according to claim 16, wherein the head portion is a head that applies thermal energy to ink to eject ink droplets.