JPH081925A - Ink jet textile printing fabric, ink jet textile printing method, and textile printed matter - Google Patents

Abstract

PURPOSE:To provide an ink jet textile printing fabric which is excellent in dye-affinity, low in cost, and excellent in conveyable property within a device; a textile printing method ; and a textile printed matter. CONSTITUTION:An ink jet textile printing fabric is made of a union cloth mainly consisting of multifilament thread of hydrophilic fiber and thread of hydrophobic fiber to be dyed with a dye-containing water-base ink. The moisture percentage of the thread consisting of the hydrophilic fiber in an atmosphere of a relative humidity of 65% at 20 deg.C is 5wt.% or above. The filament which constitutes the multifilament thread consisting of the hydrophobic fiber is of 0.001-1d.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth for ink-jet printing, a method for ink-jet printing, and a printed material thereof, and in particular, when a print image is formed by an ink-jet method, it has a high dyeing ratio, high color development, and is clear and delicate. The present invention relates to a fabric for ink-jet printing, a method for inkjet printing, and a printed product, which are made of a mixed woven fabric capable of obtaining various patterns.

[0002]

2. Description of the Related Art The mainstream of current printing is screen printing,
Roller printing. All of these methods require printing plates for printing. For this reason, it is not suitable for high-mix low-volume production, and it is difficult to respond quickly to trends. Therefore, a plateless electronic printing system has recently been demanded. In response to this demand, many printing methods using ink jet recording have been proposed, and expectations from various fields are increasing. Here, as the ink-jet printing cloth used for printing, (1) the ink can be developed to a sufficient density, (2) the dyeing rate of the ink is high,
(3) The ink dries quickly on the cloth, (4)
Less occurrence of irregular ink bleeding on the fabric,
(5) Performance such as excellent transportability in the apparatus is required.

Conventionally, in order to satisfy these required performances, a cloth has been pretreated mainly in advance. For example, Japanese Patent Laid-Open No. 62-53492 proposes cloths having an ink receiving layer.

However, although such a pretreatment has a partial effect on the above requirements, the superiority or inferiority of the printed image after the final step is largely due to the basic characteristics of the fabric base material used. However, there is a problem that it is not possible to obtain a sufficiently satisfactory product.

Further, the transportability of the cloth in the textile printing apparatus may be rather deteriorated by the pretreatment. In particular, the influence of the base material is great in the conveyance of the ink-jet printing cloth mainly including the yarn containing the hydrophobic fibers in the printing apparatus.

As described above, in the prior art, even if a means capable of satisfying the individual performances to some extent can be found, all the above performances can be satisfied at the same time, and the finest image that solves the series of problems can be obtained. The ink-jet printing cloth and the ink-jet printing method are not known so far.

[0007]

The ink-jet printing method for forming an image by using the dot expression of this ink, which uses a water-based ink having a remarkably low viscosity as compared with the conventional printing paste, is comparative to other printing methods. There are extremely many restrictions on the basis of the physical characteristics of the cloth, and the restrictions are particularly large in the case of a cloth mainly including a yarn made of a hydrophobic fiber.

[0008] The inventors of the present invention have proposed a method for an ink-jet printing cloth composed of hydrophobic fibers, which is made of hydrophobic fibers having a predetermined thickness, in addition to the conventional improvement method such as pretreatment of the cloth. And a yarn composed of a hydrophilic fiber having a moisture content of a certain amount or more as a constituent component of the base material, and by weaving these together, the coloring property, the dyeing ratio, the fixing property,
It was found that various characteristics such as bleeding property, level dyeing property and transportability can be remarkably improved.

Therefore, an object of the present invention is to obtain a dyed product having a high density, which is free from ink bleeding, is clear, has excellent leveling properties, and is free from the problems of the conventional general ink jet textiles as described above. The ink-jet printing cloth capable of simultaneously solving the problem of dyeing technology, the problem of cost of good dyeing rate of ink, the problem of operability such as ink fixability and transportability in the apparatus, and the like. An object is to provide an inkjet printing method and a printed material.

[0010]

The above object can be achieved by the present invention described below. That is, the present invention is a textile for inkjet printing, which comprises a yarn made of hydrophilic fiber and a multifilament yarn mainly made of multifilament yarn made of hydrophobic fiber dyed with a water-based ink containing a dye, from the hydrophilic fiber. Is a moisture content of 5% by weight or more in an atmosphere of 20 ° C. and a relative humidity of 65%, and the filaments constituting the multifilament yarn composed of hydrophobic fibers are 0.001-1d. And a mixing ratio of a yarn made of a hydrophobic fiber and a yarn made of a hydrophilic fiber constituting the mixed woven fabric is 20: 1 to 1: 1 by weight, and the hydrophobic fiber is It is a fiber having an ester bond or a peptide bond, the hydrophilic fiber is regenerated cellulose, and the hydrophilic fiber is mercerized cellulose. It, it moisture regain of the cloth for ink jet textile printing is 5-105% by weight, 0.01 to 20% by weight relative to the dry weight of the cloth
The water-soluble metal salt, the water-soluble polymer, urea, thiourea, and a surfactant are contained.

The present invention also provides an ink-jet printing method for applying a printing ink to the cloth, wherein the cloth is the ink-jet printing cloth according to any one of the above, and after the ink is applied to the cloth, dyeing is performed. An inkjet printing method characterized by performing a deposition process and then performing at least a cleaning process. The inkjet printing method includes an inkjet printing process in which thermal energy is used to eject ink droplets.

Further, the present invention is a printed product printed by the above-mentioned ink jet printing method, which is a processed product obtained by further processing the above-mentioned printed product, and the processed product has the desired size of the printed product. And the step of obtaining the final processed product is performed on the separated pieces, and the step of obtaining the final processed product is sewing.

[0013]

In the present invention, an excellent printed image can be obtained because the yarn made of the hydrophilic fiber and the yarn made of the hydrophobic fiber are appropriately interwoven in the fabric, as reported previously. Even if you print using various ink-based water-based inks that have much lower viscosity than printing paste,
It is thought that the hydrophilic fiber yarn holds the water-based ink quickly and prevents irregular bleeding.

Further, since the yarn made of this hydrophilic fiber has a certain amount of water content, the swelling state between the hydrophilic fiber yarn and the hydrophobic fiber yarn becomes optimum in a general use environment, This is probably because the diffusion of the dye during dyeing and the bond formation between the fiber and the dye are optimized.

Further, the mechanical strength at the time of carrying the cloth is well balanced from the viewpoint of highly accurate feeding.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in more detail with reference to preferred embodiments.

In the present invention, the hydrophobic fiber means 20
Fiber having a moisture content of less than 5% by weight at a temperature of 65 ° C. and a relative humidity of 65%. As these fibers, any of filaments, staples and the like can be used.

The fibers are preferably controlled to have an average thickness of 0.001 to 1 d (denier), preferably 0.005 to 0.8 d, and more preferably 0.01 to 0.7 d.

When the average thickness of the fibers is smaller than 0.001d, the dyeing property is deteriorated and the fabric is inconveniently conveyed. On the other hand, when it is larger than 1d, it causes problems such as bleeding and resolution, which is not preferable.

The thickness of the yarn composed of these hydrophobic fibers constituting the interwoven fabric of the present invention is preferably controlled to 5 to 200d, more preferably 10 to 100d.

As the fiber material, for example, polyester,
Nylon, acrylic, vinylon, vinylidene, polyvinyl chloride, and polypropylene fibers can be mentioned, but the fibers are not limited to these, and any one can be used as long as the moisture content is within the range by treatment such as surface modification. Anything can be used. Among these, those using fibers having an ester bond or a peptide bond in the main chain of the molecule are more preferable in terms of dyeability and operability.

Next, as the hydrophilic fibers constituting the hydrophilic yarn which characterizes the present invention, fibers having a water content of 5% by weight or more, preferably 9 to 20% by weight at 20 ° C. and a relative humidity of 65% are used. is there. As these fibers, any of filaments, staples and the like can be used. Fibers having a water content of less than 5% by weight are not preferable because they cause inconveniences in color development and bleeding properties.

Further, the fibers whose average thickness is controlled to be 0.1 to 3d are preferably used. When the average thickness of the fibers is smaller than 0.1d, there is a problem in terms of the transportability of the cloth, and when it is larger than 3d, there is a problem in the occurrence of bleeding and resolution, which is not preferable. There are cases.

The fiber material includes, for example, silk, hemp, cotton, regenerated cellulose, and wool fiber, but is not limited to these fibers, and the moisture content thereof is changed by treatment such as surface modification and mercerization. Any one can be used as long as it falls within the range. Among these, regenerated cellulose and mercerized cellulose fiber are more preferable.

In the present invention, a yarn composed of these hydrophilic fibers is used as the constituent yarn of the interwoven fabric. The thickness of this thread is preferably 5 to 200 d, more preferably 10 to 100 d.

Further, the mixed woven fabric constituting the textile printing fabric of the present invention has a mixing ratio of the above-mentioned hydrophobic fibers and hydrophilic fibers (thus, a mixture of threads made of hydrophobic fibers and threads made of hydrophilic fibers). It is preferable that the ratio is 20: 1 to 1: 1 by weight. When the mixing ratio of the hydrophilic fibers is less than 20: 1 by weight, problems such as bleeding property, fixability and transportability occur, and when the mixing ratio is more than 1: 1 by weight, the dyeing ratio is lowered, which is preferable. There is no.

In the present invention, the term "woven fabric" means a yarn made of a hydrophilic fiber and a yarn made of a hydrophobic fiber as a warp yarn or a weft yarn, which is interwoven and is composed of a hydrophobic fiber yarn and a hydrophilic fiber yarn. It is desirable that the distribution be uniform without being concentrated in one place.

Further, the moisture content of the entire fabric is
It is preferably from 5 to 105% by weight. If the water content is less than 5% by weight, problems may occur in terms of color developability and dyeing rate. Further, if the water content exceeds 105% by weight, there is a problem in terms of transportability and bleeding, which is not preferable.

Incidentally, JIS L 1019 was referred to as a method of measuring the water content in the cloth and the fiber. That is, 100 g of a sample was accurately weighed, placed in a drier at 105 ± 2 ° C., dried to a constant weight, and the moisture content in the fabric and fiber was determined by the following formula.

Moisture content (% by weight) = {(W−W ′) / W ′} × 100 (where W is the weight before drying and W ′ is the weight after drying). Regarding the water content of the fabric pretreated with a non-volatile or hardly volatile compound such as a water-soluble polymer, the water-soluble property is obtained by performing the same treatment as above to obtain W and W ′, and then washing with water. A compound such as a polymer was removed, and then the fiber was dried again to a constant weight to measure the dry weight W ″ of only the fiber, and the moisture content in the cloth was determined by the following formula.

Moisture content (%) = {(W−W ′) / W ″} × 100 (where W ″: the weight of the fiber portion after washing with water and drying) The cloth for inkjet printing of the present invention includes: If necessary, a conventional pretreatment method can be used in combination. In particular, the fabric contains 0.01 to 20% by weight of a substance selected from the group of water-soluble metal salts, water-soluble polymers, urea, thiourea and surfactants, based on the dry fabric weight. The water-soluble metal salt in which the water content is controlled may be more preferable. Examples of the water-soluble metal salt include those that form typical ionic crystals, such as halides of alkali metals and alkaline earth metals, and have a pH of 4 to 4 A compound which is 10.
Typical examples of such compounds include alkali metal salts such as NaCl, Na ₂ SO ₄ , KCl and CH ₃ COONa.
And the like, and as the alkaline earth metal salt, Ca
Examples thereof include Cl ₂ and MgCl ₂ . Among them, Na, K, C
Salts of a are preferred.

Examples of the water-soluble polymer include starch substances such as corn and wheat, cellulosic substances such as carboxymethyl cellulose, methyl cellulose and hydroxyethyl cellulose, sodium alginate, arabic gum, locustite bean gum, tragacanth gum, guar gum and tamarind seeds. And polysaccharides, protein substances such as gelatin and casein, and natural water-soluble polymers such as tannin-based substances and lignin-based substances.

Examples of synthetic polymers include polyvinyl alcohol compounds, polyethylene oxide compounds, acrylic acid water-soluble polymers, and maleic anhydride water-soluble polymers. Among these, polysaccharide polymers and cellulose polymers are preferable.

Anionic, cationic, amphoteric and nonionic surfactants are used as the surfactant. Typically, anionic higher alcohol sulfates, sulfonates of naphthalene derivatives, quaternary ammonium salts of cations, imidazoline derivatives of amphoteric type, polyoxyethylene alkyl ethers, polyoxyethylene propyl block polymers of nonionic type. , Sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, ethylene oxide adduct of acetylene alcohol, and the like.

Further, depending on the type of dye used, a reduction inhibitor, a dyeing and fixing agent, etc. can be used in combination with the above pretreatment method, if necessary.

The fabric of the present invention is mainly composed of a mixture of the above fiber yarns. The total content of the fiber yarns is 50 to 100% by weight based on the total weight of the fabric. More preferably, it is 70 to 100% by weight. There are no particular restrictions on the materials other than the above-mentioned fibers, which are the main components, and various conventionally known threads and the like are appropriately knitted and woven.

The above is a description of the constituent components of the ink-jet printing cloth of the present invention.

Next, the printing ink used for the ink-jet printing cloth of the present invention is an ink for ink-jet printing composed of a dye and an aqueous liquid medium.

The dye used in these inks is not particularly limited as long as it can dye the above hydrophobic fiber. For example, disperse dyes in the case of mixed fabrics containing polyester fibers, acidic in the case of nylon, metal complex salts, disperse and reactive dyes, acidic in the case of acrylic, basic and disperse dyes, direct in the case of vinylon, basic, In the case of naphthol and disperse dyes, vinylidene and polyvinyl chloride, basic, naphthol and disperse dyes can be used. Among them, the effect of the present invention is particularly remarkable in the combination of polyester fiber and disperse dye, and nylon fiber and acid dye. These dyes can be used alone or as a mixture.

In addition to these dyes for dyeing hydrophobic fibers, dyes capable of dyeing hydrophilic fibers used in the present invention can be used in combination.

The amount of these dyes used is generally 0.1 to 25% by weight, preferably 0.5 to 20% by weight, and more preferably 1 to 15% by weight based on the total amount of the ink.
It is in the range of% by weight. If it is less than 0.1% by weight, the color density is insufficient, while if it exceeds 25% by weight, the ink ejection amount is insufficient.

The ink used in the present invention is obtained by adding chlorine ions and / or sulfate ions in an amount of about 10 to 20,000 ppm to the dye contained in the ink, and silicon, iron, nickel and zinc. A preferable embodiment is one in which at least one substance selected from the group consisting of the following is added to the ink in a total amount of about 0.1 to 30 ppm. As a result, when ink jet recording is performed on the ink-jet printing cloth of the present invention using such an ink, a dyed product having a high dyeing rate, no bleeding, and a high density can be obtained. . Further, by using such an ink, it is possible to perform printing with high ejection performance without causing clogging of the head nozzle for a long period of time.

Further, in combination with the above-mentioned metal salt, calcium and / or magnesium is added in a total amount of 0.1 to 30 ppm, preferably 0.2 to 20 with respect to the weight of the ink.
It is desirable that the content is in the range of ppm, more preferably 0.3 to 10 ppm, whereby the dyeing rate can be further improved.

Water, which is an essential component of the liquid medium constituting the ink used in the ink jet printing method of the present invention, is 30 to 90% by weight, preferably 40 to 40% by weight based on the total amount of the ink.
90% by weight, more preferably 50 to 85% by weight is used.

The above are the main components of the ink jet printing ink used in the present invention, but an organic solvent generally used as a liquid medium of the ink can also be used together. For example, monohydric alcohols such as methanol, ethanol, isopropyl alcohol; ketones or keto alcohols such as acetone and diacetone alcohol; ethers such as tetrahydrofuran and dioxane; diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, tri Oxyethylene or oxypropylene addition polymers such as propylene glycol, polyethylene glycol and polypropylene glycol; alkylene in which the alkylene group such as ethylene glycol, propylene glycol, trimethylene glycol, butylene glycol and hexylene glycol contains 2 to 6 carbon atoms. Glycols; Triols such as 1,2,6-hexanetriol; Thiodiglycol; Glycerin; Ethyleneglycol Rumonomechiru (or ethyl) ether, diethylene glycol monomethyl (or ethyl)
Lower alkyl ethers of polyhydric alcohols such as ethers and triethylene glycol monomethyl (or ethyl) ethers; lower dialkyl ethers of polyhydric alcohols such as triethylene glycol dimethyl (or ethyl) ether and tetraethylene glycol dimethyl (or ethyl) ether Examples: sulfolane, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone and the like.

The content of the water-soluble organic solvent is generally in the range of 0 to 50% by weight, preferably 2 to 45% with respect to the total weight of the ink.

When the above mediums are used in combination, they can be used alone or as a mixture, but the most preferable liquid medium composition is one in which the solvent contains at least one monohydric or polyhydric alcohol and its derivative. . Among them, thiodiglycol, diethylene glycol, triethylene glycol, triethylene glycol monomethyl ether, tetraethylene glycol dimethyl ether, and ethanol are particularly good.

The main components of the ink used in the printing method of the present invention are as described above, but various other dispersants, surfactants, viscosity modifiers, surface tension modifiers, optical brighteners, etc. are required. Can be added according to

For example, viscosity adjusting agents such as urea, polyvinyl alcohol, celluloses and water-soluble resins; various cationic or nonionic surfactants; diethanolamine,
A surface tension adjusting agent such as triethanolamine; a pH adjusting agent using a buffer solution, an antifungal agent and the like can be mentioned.

In addition, as the dispersant contained in the ink when the hydrophobic fiber in which the effect of the present invention is particularly remarkable is polyester, a so-called dispersant, a surfactant, a resin or the like can be used. As a preferred specific example, as the dispersant or the surfactant, either anionic or nonionic can be used. For example, as an anionic one, fatty acid salt, alkyl sulfate ester salt, alkylbenzene sulfonate, alkylnaphthalene sulfonate,
Examples thereof include dialkyl sulfosuccinate, alkyl phosphate ester salt, naphthalene sulfonate formalin condensate, polyoxyethylene alkyl sulfate ester salt, and substituted derivatives thereof. Nonionic compounds include polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkylamine, glycerin fatty acid ester, oxyethyleneoxy. Examples include propylene block polymers, and substituted derivatives thereof.

Examples of the resin dispersant include styrene and its derivatives, vinylnaphthalene and its derivatives, aliphatic alcohol esters of α, β-ethylenically unsaturated carboxylic acids, and the like.
Acrylic acid and its derivative, maleic acid and its derivative, itaconic acid and its derivative, fumaric acid and its derivative, vinyl acetate, vinyl alcohol, vinylpyrrolidone, acrylamide, and its derivative, etc. Examples thereof include block copolymers, random copolymers and graft copolymers composed of polymers (at least one of which is a hydrophilic monomer), and salts thereof. It is preferable that these synthetic resins are alkali-soluble resins that are soluble in an aqueous solution in which a base is dissolved.

Further, these dispersants may be used alone or in combination with 2.
One or more species can be used in combination. These contents (total content when two or more kinds are used in combination) are
It is in the range of 0.1 to 25% by weight, preferably 0.3 to 23% by weight, and more preferably 0.4 to 20% by weight, based on the total weight of the ink.

The above-mentioned ink is used in a recording apparatus whose one aspect is described below, whereby a preferable printed material can be produced.

The ink-jet printing method of the present invention is carried out by using the above-mentioned ink-jet printing cloth of the present invention. The ink-jet recording method used may be any conventionally known ink-jet recording method. In the method described in Japanese Patent Application Laid-Open No. 54-59936, the method in which the ink subjected to the action of thermal energy causes a rapid volume change, and the ink is ejected from the nozzle by the action force caused by the state change It is valid. The reason is that, when a recording head having a plurality of nozzles is used, the above-mentioned method has a small variation in the ink ejection speed between the nozzles, and the ink ejection speed is 5 to 2
It can be mentioned that they are aggregated in the range of 0 m / sec. This speed optimizes the degree of permeation of the ink droplets containing the dye into the fibers when the ink droplets strike the cloth. Further, in such a system, when the dyes listed in relation to the ink used in the present invention are used, no foreign matter is deposited on the heater of the recording head or disconnection does not occur even when recording is continuously performed for a long time. , Stable printing is possible.

Further, when the ink-jet printing cloth of the present invention is used, the conditions for obtaining a particularly effective printing method are as follows: discharge droplets are 20 to 200 pl, ink injection amount is 4 to 40 nl / mm ² , dye 0.025 in total
The conditions of ˜1 mg / cm ² , a driving frequency of 1.5 kHz or more, and a head temperature of 35 to 60 ° C. are preferable.

In such an ink jet recording system, stable printing can be carried out by always recording on the ink jet printing cloth of the present invention.

As an example of an apparatus suitable for printing using the ink-jet printing cloth of the present invention, thermal energy corresponding to a recording signal is applied to the ink in the groove through which the ink of the recording head passes. A device for generating liquid droplets can be mentioned. An example of the structure of the head, which is the main part of the apparatus, is shown in FIGS. 1, 2 and 3.

The head 13 is made of glass, ceramics, a plastic plate or the like having a groove 14 through which ink passes, and a heating head 15 (a head is shown in the drawing, but not limited to this, which is used for thermal recording. It can be obtained by gluing and). The heating head 15 includes a protective film 16 made of silicon oxide, aluminum electrodes 17-1 and 17-.
2. A heating resistor layer 18 made of nichrome, a heat storage layer 19, and a substrate 20 having a good heat dissipation property such as alumina.

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

Now, 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,
The pressure causes the meniscus 23 to project, the ink 21 to be ejected, and the recording droplet 24 to be ejected from the orifice 22 to fly toward the cloth 25 of the present invention.

FIG. 3 is a perspective view of a multi-head in which a large number of heads shown in FIG. 1 are arranged. The multi-head is manufactured by closely adhering a glass plate 27 having a multi-groove 26 and a heating head 28 similar to that described in FIG. 1 is a cross-sectional view of the head 13 along the ink flow path,
FIG. 2 is a sectional view taken along line 2-2 ′ of FIG.

FIG. 4 shows an example of an ink jet recording 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 arranged at a position adjacent to the recording area of the recording head, and in the case of this example, is held in a protruding form in the moving path of the recording head. Reference numeral 62 denotes a cap, which is disposed at a home position adjacent to the blade 61, and has a configuration in which it moves in a direction perpendicular to the moving direction of the recording head and contacts the ejection port surface to perform capping. Further, 63 is an absorber provided adjacent to the blade 61, and like the blade 61, it is held in a protruding form in the moving path of the recording head. The blade 61, the cap 62, and the absorber 63 constitute a discharge recovery section 64,
The blade 61 and the absorber 63 remove water, dust and the like adhering to the ink ejection port surface.

Reference numeral 65 denotes a recording head having a discharge energy generating means, which discharges ink onto the cloth of the present invention, which faces the discharge port surface having the discharge ports, for recording. Reference numeral 66 is a carriage for mounting the recording head 65 and moving the recording head 65. The carriage 66 slidably engages with a 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 recording head 65 can move the recording area and its adjacent area.

Numeral 51 is a cloth feeding portion for inserting the cloth of the present invention, and numeral 52 is a paper feed roller driven by a motor (not shown). With these configurations, the cloth of the present invention is applied to the position facing the ejection opening surface of the recording head, and is discharged to the discharge section provided with discharge rollers 53 as the recording progresses.

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

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

The above-mentioned movement of the recording head to the home position is not limited to the completion of recording and the recovery of ejection, but also to the home adjacent to the recording area at a predetermined interval while the recording head moves in the recording area for recording. The wiper is moved to the position, and the wiping is performed along with the move.

As described above, the printing ink applied to the ink-jet printing cloth of the present invention by the method of the present invention is
In this state, since it is merely adhering to the cloth, it is preferable to subsequently carry out the dye fixing step on the fiber and the unfixed dye removing step. Such a fixing step and a method for removing unreacted dye may be a conventionally known method, for example, a conventionally known method such as washing after treatment by a steaming method, an HT steaming method, a thermofix method or the like. It can be performed according to. Furthermore, it is preferable to use reduction cleaning and fixing treatment together in the cleaning, if necessary.

[0070]

EXAMPLES Next, the present invention will be described more specifically with reference to Examples and Comparative Examples. In the text, "parts" and "%" are based on weight unless otherwise specified.

Example 1 (Preparation of Fabric A) A yarn composed of 250 polyester filament fibers having an average thickness of 0.3d was used as a warp (at 20 ° C.,
Moisture content 0.5% at relative humidity 65%) Average thickness 1.
A spun yarn composed of 3d mercerized cellulose fibers and having an average thickness of 40d was used as a weft yarn (moisture content at 20 ° C., relative humidity 65%: 9.5%), and a woven fabric was previously prepared with a density of 10
% Urea solution, dehydrated at a squeezing ratio of 60%, and then dried to obtain a fabric having a moisture content adjusted to 7%.

(Preparation of Disperse Dye Liquids I to III) β-naphthalenesulfonic acid formaldehyde condensate 20 parts Ion-exchanged water 55 parts Diethylene glycol 10 parts The above components are mixed, and the following disperse dye 15 is newly added to this solution.
After adding each part and performing premixing for 30 minutes at a rotation speed of 1000 rpm, dispersion treatment was performed under the following conditions.

Disperse dyes C.I. I. Disperse Yellow 93 C.I. I. Disperse Red 92 C.I. I. Disperse Blue 87 Disperser Sand grinder (made by Igarashi Kikai) Grinding media Zirconium beads 1 mm diameter Grinding media filling rate 50% (volume) Rotation speed 1500 rpm Grinding time 3 hours Furthermore, Fluoropore filter FP-250 (Sumitomo Electric Co., Ltd.) To remove coarse particles to disperse the dye solution (I ~
III) was obtained.

(Production of Inks a to c) Disperse dye liquids (I to III) 40 parts Thiodiglycol 24 parts Diethylene glycol 11 parts Sodium metasilicate 0.0005 parts Iron sulfate 0.001 parts Nickel chloride 0.0003 parts Sulfuric acid Zinc 0.0003 parts Calcium chloride 0.002 parts Ion-exchanged water 25 parts All the above components are mixed, and the mixed solution is mixed with sodium hydroxide.
The mixture was adjusted to H7-9, stirred for 2 hours, and then filtered with Fluoropore Filter FP-100 (trade name, manufactured by Sumitomo Electric Industries, Ltd.) to obtain inkjet printing inks (ac).

The ink jet printing inks (a to c) thus obtained were used in the color bubble jet printer B.
Installed on JC600 (product name: Canon) and printed on the above woven fabric (A) with a print density of 100% and a solid color of 200%.
A solid sample (entire printing) of 3 cm × 3 cm of mixed colors was printed and fixed by steaming at 180 ° C. for 8 minutes. Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, the bleeding property and the dyeing rate are good,
Moreover, a dark color was obtained even at the print density of 100%. In addition, the printed products have good levelness, and during printing,
The ink fixability was good, and the transporting surface was also good.

Comparative Example 1 (Preparation of Fabric B) The same operation as in Example 1 was carried out except that a vinylon spun yarn was used in place of the mercerized cellulose fiber. That is, a yarn composed of 250 polyester filament fibers having an average thickness of 0.3d is used as a warp (water content of 0.5% at 20 ° C. and relative humidity of 65%) and an average thickness of 1.
A spun yarn made of 3d vinylon fiber and having an average thickness of 40d was used as a weft yarn (water content at 20 ° C., relative humidity 65%;
The mixed woven fabric was dipped in an aqueous solution of urea having a concentration of 10% in advance, dehydrated at a squeezing ratio of 60% and then dried to adjust the moisture content of the fabric to 7%.

Using the ink of Example 1, the above woven fabric (B) was printed in the same manner. Then 180
A steam heat treatment was performed at 8 ° C. for 8 minutes. Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, Example 1
The bleeding property and the dyeing rate were poorer than those of. Further, as compared with Example 1, the level dyeing property and the ink fixing property were deteriorated.

Comparative Example 2 (Production of Fabric C) The same operation as in Example 1 was carried out except that polyester filament fibers having an average thickness of 0.005d were used in place of the polyester filament fibers having an average thickness of 0.3d. That is, a yarn composed of 15,000 polyester filament fibers having an average thickness of 0.005d is used as a warp, and the water content is 0.5 at 20 ° C. and 65% relative humidity.
%) And a mercerized cellulose fiber having an average thickness of 1.3 d and having an average thickness of 40 d as weft yarns (moisture content at 20 ° C., relative humidity 65%: 9.5%). Immerse in 10% urea aqueous solution and squeeze 60
% To dehydrate and then dry to obtain a fabric having a moisture content adjusted to 7%.

Using the ink of Example 1, the above woven fabric (C) was printed by the same method. Then 180
A steam heat treatment was performed at 8 ° C. for 8 minutes. Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, Example 1
The dyeing rate was worse than that of. Further, compared with Example 1, a dark color was not obtained at the print density of 100%.

Comparative Example 3 (Preparation of Fabric D) The same operation as in Example 1 was carried out except that polyester filament fibers having an average thickness of 2d were used instead of the polyester filament fibers having an average thickness of 0.3d. That is, a yarn composed of 38 polyester filament fibers having an average thickness of 2d is used as a warp (20 ° C., relative humidity 65
% Moisture content at 0.5%), and a yarn having an average thickness of 40d made of mercerized cellulose fibers having an average thickness of 1.3d as a weft (water content at 20 ° C, relative humidity 65% 9.5%) interwoven The woven fabric is soaked in an aqueous solution of urea with a concentration of 10% in advance, dehydrated at a squeezing ratio of 60% and then dried to obtain a moisture content of 7%.
A fabric adjusted to 100% was obtained.

Using the ink of Example 1, the above woven fabric (D) was printed by the same method. Then 180
A steam heat treatment was performed at 8 ° C. for 8 minutes. Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, Example 1
The bleeding property was worse than that of.

Example 2 (Preparation of Cloth E) A yarn consisting of 140 polyester filament fibers having an average thickness of 0.5d was used as a warp (20 ° C.,
Moisture content 0.5% at relative humidity 65%) Average thickness 1d
The regenerated cellulose filament fiber having an average thickness of 30d is used as a weft yarn (moisture content of 12.0% at 20 ° C. and humidity of 65%), and the woven fabric is dipped in an aqueous solution of sodium alginate having a concentration of 2% in advance. Then, the fabric was dehydrated at a squeezing ratio of 60% and then dried to obtain a fabric having a moisture content adjusted to 15%.

Using the ink of Example 1, the above fabric (E) was printed in the same manner as in Example 1. Then, steam heat treatment was performed at 180 ° C. for 8 minutes. After that, this was washed with water and reduction washed, and evaluated for the bleeding property, the density and the dyeing rate of the dyed product. As a result, as shown in Table 1, the bleeding property and the dyeing rate are good, and the printing density is 100%.
A dark color was obtained even in parts. Further, the printed product had a good leveling property, a good ink fixing property at the time of printing, and a good carrying surface.

Comparative Example 4 (Preparation of Fabric F) The same operation as in Example 2 was carried out except that nylon fiber was used instead of regenerated cellulose fiber. That is, a thread made up of 140 polyester filament fibers having an average thickness of 0.5 d is used as a warp (20 ° C., relative humidity 6
A yarn made of 30 nylon filament fibers having an average thickness of 1d at a moisture content of 0.5% at 5% was used as a weft yarn (20
Moisture content at 65 ° C and relative humidity of 65% 4.5%) Soaked woven fabric in an aqueous solution of sodium alginate having a concentration of 2%, dehydrated at a squeezing ratio of 60% and dried to obtain a moisture content of 15%.
A fabric adjusted to No. 1 was obtained.

Using the ink of Example 1, the above fabric (F) was printed by the same method as in Example 1. Then, steam heat treatment was performed at 180 ° C. for 8 minutes. Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, the bleeding property and the dyeing rate were poor as compared with Example 2, and no dark color was obtained at the print density of 100%. further,
As compared with Example 2, the level dyeability and the ink fixability were poor, and the transportability was poor.

Example 3 (Production of Cloth G) A yarn consisting of 100 polyester filament fibers having an average thickness of 0.7d was used as a warp (20 ° C.,
Moisture content 0.4% at relative humidity 65%) Average thickness 3d
A yarn composed of 30 regenerated cellulose filament fibers is used as a weft yarn (water content at 20 ° C., relative humidity 65% 1
The woven fabric (1.0%) was previously dipped in an aqueous solution of carboxymethyl cellulose having a concentration of 1% and 15% of urea, dehydrated at a squeezing ratio of 60%, and then dried to obtain a fabric having a moisture content adjusted to 10%.

Using the ink of Example 1, the above fabric (G) was printed in the same manner as in Example 1. Then, fixing was carried out by thermosol treatment at 200 ° C. for 40 seconds. Then, this was washed with water and reduction washed, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, the bleeding property and the dyeing rate were good, and a dark color was obtained even at the print density of 100%. further,
The printed product had good leveling properties, good ink fixability during printing, and good transport surface.

Example 4 (Preparation of Cloth H) A yarn consisting of 200 nylon filament fibers having an average thickness of 0.4d was used as a warp (water content of 4.5% at 20 ° C. and 65% relative humidity) and an average thickness of 2d. A yarn composed of 30 regenerated cellulose filament fibers is used as a weft yarn (water content at 20 ° C. and relative humidity 65% of 12.0).
%) The woven cloth was previously mixed with sodium alginate 2%,
The cloth was dipped in an aqueous solution of 10% urea and 1% sodium hydrogen carbonate, dehydrated at a squeezing ratio of 60% and then dried to obtain a fabric having a moisture content adjusted to 20%.

(Production of Ink d) Acid Dye (CI Acid Yellow 35) 3 parts Direct Dye (CI Direct Yellow 86) 2 parts thiodiglycol 24 parts diethylene glycol 11 parts sodium metasilicate 0.0005 parts iron sulfate 0.001 part Nickel chloride 0.0003 part Zinc sulphate 0.0003 part Calcium chloride 0.002 part Ion-exchanged water 60 parts All the above components are mixed and the mixed solution is mixed with sodium hydroxide.
The mixture was adjusted to H8, stirred for 2 hours, and then filtered with a fluorobore filter FP-100 (trade name, manufactured by Sumitomo Electric Co., Ltd.) to obtain an inkjet printing ink (d).

(Production of Ink e) Acid Dye (CI Acid Red 266) 7 parts Reactive Dye (CI Reactive Red 24) 1 part Thioglycol 15 parts Diethylene glycol 10 parts Tetraethylene glycol dimethyl ether 5 parts Sodium metasilicate 0.0005 parts Iron sulphate 0.001 parts Nickel chloride 0.0003 parts Zinc sulphate 0.0003 parts Calcium chloride 0.002 parts Ion-exchanged water 62 parts Mixture of all the above components is mixed with sodium hydroxide.
The mixture was adjusted to H8, stirred for 2 hours, and then filtered using Fluoropore Filter FP-100 (trade name, manufactured by Sumitomo Electric Industries, Ltd.) to obtain an inkjet printing ink (e).

(Production of Ink f) Acid Dye (CI Acid Blue 85) 9 parts Thiodiglycol 20 parts Diethylene glycol 5 parts Sodium metasilicate 0.0005 parts Iron sulfate 0.001 parts Nickel chloride 0.0003 parts Zinc sulfate 0.0003 parts Calcium chloride 0.002 parts Ion-exchanged water 66 parts The pH of a mixed solution obtained by mixing all the above components with sodium hydroxide.
After adjusting to 8, the mixture was stirred for 2 hours, and then filtered with Fluoropore Filter FP-100 (trade name, manufactured by Sumitomo Electric Co., Ltd.) to obtain an inkjet printing ink (f).

The ink jet printing inks (d to f) thus obtained were used in the color bubble jet printer B.
Installed on JC600 (product name: Canon) and printed on the above cloth (D) with a print density of 100% and 200% of a single color and 2
A solid sample having a color mixture of 3 cm × 3 cm was printed, and fixed by steaming at 102 ° C. for 30 minutes. Then, this was washed with water, and the bleeding property, the density and the dyeing rate of the dyed product were evaluated. As a result, as shown in Table 1, the bleeding property and the dyeing rate are good, and the printing density is 100.
A dark color was obtained even in% part. Further, the printed product had good leveling property, good ink fixability at the time of printing, and good carrying surface.

Comparative Example 5 (Production of Fabric I) The same operation as in Example 4 was carried out except that vinylon fiber having a water content of 4.5% was used instead of the regenerated cellulose fiber. That is, a yarn made of 200 nylon filament fibers having an average thickness of 0.4d was used as a warp (a moisture content of 4.5% at 20 ° C. and a relative humidity of 65%), and a yarn made of 30 vinylon filament fibers having an average thickness of 2d was used. A woven fabric which was woven as a weft (moisture content of 4.5% at 20 ° C. and relative humidity of 65%) was previously prepared with sodium alginate 2% and urea 1
The cloth was dipped in an aqueous solution of 0% and sodium hydrogencarbonate 1%, dehydrated at a squeezing ratio of 60%, and dried to adjust the water content of the cloth to 20%.

Using the ink of Example 4, printing was performed on the above fabric (I) in the same manner as in Example 1. Then, steam heat treatment was performed at 102 ° C. for 30 minutes. afterwards,
This was washed with water and evaluated for bleeding property, density and dyeing rate of the dyed product. As a result, as shown in Table 1, Example 4
The bleeding property and dyeing rate are poorer than that of the above, and the print density is 1
No dark color was obtained at the 00% part. Further, as compared with Example 4, the level dyeing property and the ink fixability were poor, and the transportability was poor.

Example 5 (Production of Cloth J) A yarn consisting of 180 nylon filament fibers having an average thickness of 0.3d was used as a warp (water content at 20 ° C., relative humidity 65% 4.5%) and average thickness 1 .5d
An average thickness of 45 mercerized cellulose fibers
The spun yarn of d was used as the weft yarn (water content 10.0% at 20 ° C., relative humidity 65%), and the woven fabric was dipped in an aqueous solution of 0.5% carboxymethylcellulose, 5% NaCl and 1% sodium carbonate in advance and squeezed. The moisture content of the cloth was adjusted to 30% by dehydrating at a rate of 60% and then drying.

Using the ink of Example 4, the above fabric (J) was printed by the same method as in Example 1. Then, steam heat treatment was performed at 102 ° C. for 30 minutes. afterwards,
This was washed with water and evaluated for bleeding property, density and dyeing rate of the dyed product. As a result, as shown in Table 1, the bleeding property and the dyeing rate were good, and a dark color was obtained even at the print density of 100%. Further, the printed product had good leveling property, good ink fixability at the time of printing, and good carrying surface.

Comparative Example 6 (Production of Cloth K) The same operation as in Example 5 was carried out except that vinylon fibers were used instead of the mercerized cellulose fibers. That is, a wet yarn made of 180 nylon filament fibers having an average thickness of 0.3d was used as a warp (water content of 4.5% at 20 ° C. and a relative humidity of 65%) and an average thickness of vinylon fibers having an average thickness of 1.5d. 45d spun yarn as weft yarn (water content at 20 ° C, relative humidity 65% 4.5%
%) The mixed woven fabric was previously dipped in an aqueous solution of 0.5% carboxymethylcellulose, 5% NaCl and 1% sodium carbonate, dehydrated at a squeezing ratio of 60% and dried to adjust the moisture content of the fabric to 30%.

Using the ink of Example 4, printing was performed on the above fabric (K) in the same manner as in Example 1. Then, steam heat treatment was performed at 102 ° C. for 30 minutes. afterwards,
This was washed with water and evaluated for bleeding property, density and dyeing rate of the dyed product. As a result, as shown in Table 1, Example 5
The bleeding property and dyeing rate are poorer than that of the above, and the print density is 1
No dark color was obtained at the 00% part. Further, as compared with Example 5, the level dyeing property and the ink fixability were poor, and the transportability was poor.

Example 6 (Production of Cloth L) A yarn consisting of 120 polyester filament fibers having an average thickness of 0.6 d was used as a warp (at 20 ° C.,
Moisture content 0.5% at relative humidity 65%) Average thickness 1.
A spun yarn of 3d mercerized cellulose fibers having an average thickness of 40d was used as a weft yarn (moisture content 18.0% at 20 ° C. and relative humidity 65%), and a woven fabric was previously prepared with a density of 1
The cloth was dipped in a 0% aqueous solution of urea, dehydrated at a squeezing ratio of 60% and then dried to adjust the water content of the cloth to 7%.

Subsequent operations were performed in the same manner as in Example 1. The results were as good as in Example 1.

[0101]

[Table 1]

◯: No turbulence Δ: Slight turbulence X: A lot of turbulence * 2 K / S values of the solid 100% solid portion before and after washing were measured in the washing step after heat treatment. Then, it was judged according to the following criteria.

◯: K / S value difference is less than 2 for all colors.

(Good dyeing rate) Δ: K / S value difference of 2 or more in 1 or more ways.

(Dyeing ratio is inferior for some colors.) X: K / S value difference of 2 or more for all colors.

(The dyeing rate is inferior for all colors.) K / S = (1-R) ² / 2RR: reflectance at the maximum absorption wavelength * 3 100% and 200% print density monochromatic and two colors The K / S value after color development of the mixed color part was measured to be 100% and 20
The relative shade of 0% was used to determine the shade of 100%.

◯: K / S value of 200% in all colors is 1
1.5 times or less of 00% part (dark color can be obtained even in 100% part) Δ: K / S value of 200% part is 1.5 times or less of 100% part (100% part or more) However, dark color can be obtained in part) ×: K / S value of 200% part is 1.5 times or more of 100% part in all colors (dark color cannot be obtained in 100% part)

[0108]

As described above, according to the textile printing fabric of the present invention, the ink is not bleed, is clear, and has a good leveling property.
Simultaneously solve the problems of dyeing technology to obtain high density dyeing products, cost problems of good dyeing ratio of ink, operability such as ink fixability and transportability in the device. It will be possible.

[Brief description of drawings]

FIG. 1 is a partial vertical cross-sectional view showing an example of a head section of an inkjet recording apparatus.

FIG. 2 is a sectional view taken along line 2-2 ′ of the head portion of the inkjet recording apparatus shown in FIG.

FIG. 3 is a partial perspective view of a multi-headed head shown in FIG.

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

[Explanation of symbols]

 61 Wiping Member 62 Cap 63 Ink Absorber 64 Ejection Recovery Section 65 Recording Head 66 Carriage

Front page continuation (72) Inventor, Clothing Shiro Iida 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor, Mariko Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Masahiro Haruta 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (13)

[Claims] 1. An inkjet printing cloth comprising a mixed woven fabric mainly comprising a yarn made of a hydrophilic fiber and a multifilament yarn made of a hydrophobic fiber dyed with an aqueous ink containing a dye. 20 threads
Moisture content of 5% by weight in an atmosphere with relative humidity of 65% at ℃
In addition to the above, the number of filaments constituting the multifilament yarn composed of hydrophobic fibers is 0.001 to 1d.
A fabric for inkjet printing, which is characterized by being 2. The mixing ratio of the yarn composed of the hydrophobic fiber and the yarn composed of the hydrophilic fiber constituting the interwoven fabric is 2 by weight.
The cloth for inkjet printing according to claim 1, wherein the cloth is 0: 1 to 1: 1. 3. The ink-jet printing cloth according to claim 1, wherein the hydrophobic fiber is a fiber having an ester bond or a peptide bond. 4. The cloth for inkjet printing according to claim 1, wherein the hydrophilic fiber is regenerated cellulose. 5. The ink-jet printing cloth according to claim 1, wherein the hydrophilic fiber is mercerized cellulose. 6. The water content of the ink-jet printing cloth is 5
The cloth for ink-jet printing according to claim 1, which is from about 105% by weight. 7. 0.01 to 20 relative to the dry weight of the fabric
The ink-jet printing cloth according to claim 1, which contains at least one substance selected from the group consisting of a water-soluble metal salt, a water-soluble polymer, urea, thiourea, and a surfactant in a weight percentage. 8. An ink-jet printing method for applying a printing ink to a cloth, wherein the cloth is made according to any one of claims 1 to 7.
The cloth for inkjet printing according to any one of
An ink-jet printing method, comprising applying an ink to the cloth, performing a dyeing treatment, and then performing at least a washing treatment. 9. The ink-jet printing method according to claim 8, wherein the ink-jet printing method is an ink-jet printing method in which thermal energy is used to fly ink droplets. 10. A printed material printed by the inkjet printing method according to claim 8. 11. A processed product obtained by further processing the printed material according to claim 10. 12. The processed product is obtained by cutting the printed material into a desired size, and subjecting the cut pieces to a step for obtaining a final processed product.
The processed product according to 1. 13. The processed product according to claim 12, wherein the step for obtaining the final processed product is sewing.