JP3418557B2 - Ink jet dyeing fabric and dyeing method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inkjet dyeing cloth and an inkjet dyeing method using the cloth.

[0002]

2. Description of the Related Art In recent years, as one of printing methods, studies on textile printing using an inkjet printer for paper have been advanced. According to this inkjet method, it is possible to omit the trace plate making process and the transfer paper making process in the conventional fabric printing, and it is possible to create a wide variety of color pattern designs.

However, in ink-jet dyeing of cloth, the dye ink jetted from the nozzle of the printer spreads on the surface of the cloth to cause bleeding, and the dye ink also permeates and diffuses into the tissue of the cloth to reduce the surface concentration of the dye. In addition, there is a problem that color mixing becomes non-uniform, color breakage easily occurs in the color mixing portion, and a clear pattern with high color density cannot be obtained.

Therefore, in order to prevent such bleeding and color breakage and to make the dyeing pattern clearer, it has been conventionally proposed to perform various pretreatments on the cloth used for ink jet dyeing. For example, Japanese Patent Publication No. 63-31594 discloses a method of attaching a compound selected from a water-soluble polymer, a water-soluble salt, and water-insoluble inorganic fine particles, which is non-dyeing to a dye used, to a cloth. JP-B-62-45359 describes a method of previously providing a cloth with a nitrogen-containing cationic substance when an ink containing a water-insoluble dye is used, and JP-B-63-3.
Japanese Patent No. 1593 describes a method in which an ink whose viscosity and surface tension are specified in a specific range is used and a cloth whose water repellency is 50 points or more is used.

[0005]

However, in the above-mentioned method of adhering the non-dyeing compound to the cloth, the surface of the cloth is covered with the non-dyeing film, so that the dye of the cloth fiber There is a problem in that the dyeing property is impaired and the dyeing ratio is lowered, which leads to a decrease in dyeing density. Further, in the method of preliminarily applying a nitrogen-containing cationic substance to the cloth, it is possible to prevent bleeding and increase the dyeing density by aggregating the water-insoluble dye on the cloth, but to enlarge the shape of dots in the dyed part. When observed, the water-insoluble dye aggregates along the fiber direction of the fabric, so a perfect circular dot shape cannot be obtained, which causes deformation of the image and the appearance of fine lines in the entire image. There is a problem that a high-quality design cannot be obtained because a phenomenon in which the edge portion of the image is visually recognized in a jagged manner occurs. Further, in the method of using a cloth having a water repellency of 50 points or more, although the ink bleeding can be surely prevented by the water repellency, the dot diameter becomes too small and the dot feeling becomes noticeable, and the dot diameter becomes small. Since it passed, it returned to give an impression as if the dyeing density had decreased upon visual observation, and there was a problem that a high-quality pattern could not be obtained.

Further, in these conventional techniques, it was impossible to surely prevent the interference fringe (moire) pattern from appearing on the surface of the dyed fabric.

The present invention has been made in view of the above technical background, and it is possible to prevent a decrease in dyeing density in ink jet dyeing, and to prevent bleeding, color breakage, and interference fringes, thereby providing a clear, delicate and high color density. It is an object of the present invention to provide an ink-jet dyeing cloth and an ink-jet dyeing method capable of imparting a high-quality dyed pattern.

[0008]

[Means for Solving the Problems] In order to achieve the above object, the inventors of the present invention have earnestly studied, and as a result, by adding wool fine particles to a fabric material, a clear and delicate, high coloring density and high quality can be obtained. The present invention has been completed by finding that it is possible to add a dyeing pattern.

That is, the ink-jet dyeing cloth according to the present invention is characterized in that the cloth material is provided with fine wool particles. A desired cloth can be obtained by using wool fine particles as an essential addition component. The mechanism of action during dyeing is not clear, but it is estimated as follows. That is, when the ink droplets of the dye are dropped on the cloth, the moisture in the ink is absorbed and held by the wool fine particles having water absorbability, and a part of the water is transferred to the cloth fibers, while the organic solvent component in the ink is also absorbed. The wool is absorbed and held by the oil-absorbent wool fine particles, and a part of the wool particles is transferred to the fabric fibers. Therefore, the ink does not spread in the constituent fiber bundle direction, and thus the bleeding is effectively prevented. In addition, the fine wool particles also effectively prevent the ink droplets from penetrating and diffusing inside the fabric, improving the surface concentration of the dye, and thus forming a pattern excellent in color development. Further, by providing the wool fine particles, interference fringes are hardly generated, color breakage at the color mixing portion is prevented, and the dot shape is adjusted to a round shape, so that a high quality image is ensured. Further, since the wool fine particles absorb both the water content in the ink and the organic solvent component, even if the cloth surface comes into contact with another cloth, the cloth surface is not transferred to the cloth or the like.

In the above, the water absorption rate of the wool fine particles is 17
0-350 (mL / 100g), oil absorption is 80-
It is desirable that the water absorption rate is 200 (mL / 100 g) and the water absorption rate / oil absorption rate is in the range of 2.0 to 4.0. In this case, there is more bleeding, which is more vivid and high in color density. Image quality is secured.

Further, it is desirable that the wool fine particles are amorphous fine particles because a dyeing fabric having a more excellent coloring property can be obtained. Moreover, the dot shape of the ink can be made closer to a perfect circle when dyeing, and the image quality can be further improved.

Further, it is desirable that the fine wool particles be bound to the cloth material by a binder material, whereby the fixing force of the fine wool particles to the cloth is improved, and the fine wool particles are separated from the cloth at least before printing. It is effectively prevented.

The binder material is one or more compounds selected from the group consisting of water-soluble polymers, water-absorbent resins, wax agents and solid surfactants, from the viewpoint of further improving the fixing strength. Is desirable.

The particle size of the fine wool particles is 0.05 μm.
It is desirable that the particle size be ˜100 μm, whereby the wool fine particles can quickly and sufficiently absorb the ink, and the dye in the ink is efficiently dyed on the fabric fiber during the heat treatment.

Further, the fine wool particles are 5 with respect to the cloth material.
It is desirable that it is provided at a rate of ˜20 g / m ² ,
In this case, bleeding, color breakage, and interference fringe generation can be reliably prevented and a sufficient dyeing density can be secured without reducing the texture of the cloth.

Further, in the dyeing method according to the present invention, a cloth material is impregnated with an aqueous liquid containing fine wool particles or an aqueous liquid containing fine wool particles and a binder material, and a desired pattern is formed on the dried cloth by an ink jet method. It is characterized in that it is printed and then subjected to heat treatment, and since wool fine particles are applied to the cloth, a decrease in dyeing density in ink jet dyeing, bleeding, color breakage, generation of interference fringes is prevented, and it is clear and clear. A delicate, high color density, high-quality dyed product can be produced at low cost. In particular, when the aqueous liquid contains a binder material, the fixing strength of the wool fine particles to the cloth is improved, and it is possible to provide a dyed product of more stable quality.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION The cloth for ink-jet dyeing of the present invention is a cloth material to which fine particles of wool are applied, but the kind, form, etc. of the wool as the raw material of the fine particles of wool are not particularly limited. That is, for example, virgin wool may be used, short fiber scraps produced from spinning, weaving processes, or the like may be used, or recovered wool products may be recycled. In addition, in this invention, "wool" includes not only sheep's hair but also goat's hair (for example, mohair, cashmere, etc.).

The form of the fine wool particles is not particularly limited, and may be, for example, fibrous fine particles, acicular fine particles, or amorphous fine particles. Examples of commercially available fibrous fine particles include "Merry Powder N" (Kyoeisha Chemical Co., Ltd.), and examples of commercially available amorphous fine particles include "Merry Powder 30" (Kyoeisha Chemical Co., Ltd.). . In addition, the term “amorphous” refers to a material that does not have a peculiar shape such as a fibrous shape or a needle shape but has a particulate shape. Such a form can usually be confirmed by microscopic observation.

Such wool fine particles can be obtained, for example, by subjecting wool fibers to physical / mechanical treatment or chemical / mechanical treatment. Examples of the physical / mechanical treatment method include a method in which wool fibers are formed and pulverized at a low temperature (JP-A-55-84556), and a method in which they are pulverized by a special circulating vacuum pulverizer (JP-A-62-283310).
Examples of the method for chemical / mechanical treatment include, for example, a method of degrading wool fibers with an enzyme and then mechanically crushing the treatment (JP-A-4-89836), and an oxidizing agent for wool fibers. Or after chemical treatment with a reducing agent,
Examples thereof include a method of performing swelling treatment, mechanically pulverizing after drying (JP-A-6-192433).

It is preferable to use amorphous particles as the wool fine particles. In this case, the dot shape can be made to be closer to a perfect circle to further improve the image quality and further improve the color developability. Can be made. Such amorphous fine particles can be obtained by, for example, the aforementioned chemical / mechanical treatment.

The wool fine particles have a water absorption rate of 1
70 to 350 (mL / 100 g), the oil absorption rate is 80 to 200 (mL / 100 g), and the water absorption rate /
The oil absorption rate is preferably in the range of 2.0 to 4.0. If the water absorption rate is less than 170 (mL / 100g), sufficient bleeding prevention effect cannot be obtained, which is not preferable. On the other hand, if the water absorption rate exceeds 350 (mL / 100g), the dye transfer to the fiber, that is, the dyeing property. Is reduced, which is not preferable.
Further, when the oil absorption rate is less than 80 (mL / 100 g), a sufficient bleeding preventing effect cannot be obtained, and further, after the fabric is printed, the dye easily bleeds to the surface together with the organic solvent component in the ink, which is preferable. On the other hand, on the other hand, if the oil absorption exceeds 200 (mL / 100 g), the transferability of the dye to the fiber is lowered and the dyeing property is lowered, which is not preferable. Further, if the water absorption rate / oil absorption rate is less than 2.0, the organic solvent component in the ink bleeds during printing and color breakage easily occurs, which is not preferable, while the water absorption rate / oil absorption rate exceeds 4.0. In addition, moisture in the ink is likely to diffuse and bleeding is likely to occur, which is not preferable. The oil absorption rate (mL / 100 g) is a value measured according to JIS K5101, and 3 g of the sample to be measured is gradually dropped and mixed with boiled linseed oil using a buret, and the sample is putty-like. Sample 10 was calculated based on the amount of oil added to the boiled linseed until the change to the fluid state.
It is an oil absorption amount (mL) per 0 g. Further, the water absorption rate (mL / 100 g) is a value measured in the same manner except that “water” is used instead of “boiled linseed oil” in the method for measuring oil absorption rate.

The particle size of the wool fine particles is not particularly limited, but is preferably 0.05 μm to 100 μm. If it is less than 0.05 μm, sufficient ink absorption performance cannot be obtained, and if it exceeds 100 μm, the surface of the cloth is not uniform, and the ink absorption varies. Transfer is likely to be hindered or bleeding may occur, which is not preferable. Above all, 0.5 μm to 50 μm
It is more preferable to use m.

The amount of the fine wool particles applied to the cloth is preferably 5 to ²⁰ g / m ² with respect to the cloth material. If it is less than 5 g / m ² , the above-mentioned imparting effect cannot be sufficiently obtained, while if it exceeds 20 g / m ² , the texture of the dyed product finally obtained is unfavorable. Above all, it is more preferably applied at a rate of 7 to 15 g / m ² , and in this case, bleeding, color breakage and interference fringe generation can be reliably prevented, and a sufficient dyeing density can be secured, and the texture is excellent. A dyed product can be obtained. In addition, the above-mentioned application ratio is that at the time of drying.

In the present invention, it is preferable that the fine wool particles be bound to a cloth material by a binder material. Since such a binder material improves the fixing strength of the wool fine particles to the fabric material, it is possible to sufficiently prevent the wool fine particles from being separated from the fabric material at least before printing, and it is further stable. It is possible to provide a quality dyeing fabric.

The binder material is not particularly limited as long as it can bind the fine wool particles to the cloth material, and examples thereof include a water-soluble polymer, a water absorbent resin, a wax agent, and a solid surfactant. Among these, water-soluble polymers are preferable because they can be easily removed during washing (for removing unfixed dye) after printing. Needless to say, it is also possible to provide the dyed product in the form in which the binder material is left on the cloth without performing such washing after printing.

As the water-soluble polymer, for example, among natural polymers, starch substances such as corn powder and wheat flour, cellulosic substances such as carboxymethyl cellulose and hydroxyethyl cellulose, sodium alginate, gum arabic, locust bean gum and guar gum are included. Sugars,
Examples of synthetic polymers such as protein-based substances such as gelatin and casein include polyvinyl alcohol, polyethylene oxide-based compounds, acrylic acid-based water-soluble polymers and maleic anhydride-based water-soluble polymers.

Examples of the water-absorbent resin include starch-based crosslinked products, cellulose-based crosslinked products, acrylate crosslinked products, polystyrene crosslinked products, acrylic acid-acrylamide copolymer crosslinked products, and isobutylene-maleic anhydride copolymers. Examples include cross-linked products.

Examples of the wax agent include hydrocarbons such as paraffin wax, higher alcohols such as cetyl alcohol, higher fatty acids such as myristic acid, animal waxes such as beeswax, and vegetable waxes such as carnauba. Examples thereof include fatty acid alcohol esters.

Examples of solid surfactants include nonionic ones such as ether type, ester type, ether ester type and nitrogen containing type, carboxylate type (soap), sulfonate type, sulfate ester type, Examples include anionic compounds such as phosphate salt type, cationic amine compounds such as aliphatic amine salt type and aliphatic quaternary ammonium salt type, and amphoteric compounds such as betaine type and aminocarboxylic acid salt type. . The solid surfactant is a surfactant that is in a solid state at room temperature (25 ° C).

The amount of such binder material applied is preferably in the range of 1 to 200 parts by weight with respect to 100 parts by weight of the wool fine particles. If it is less than 1 part by weight, the effect of improving the fixing strength cannot be sufficiently obtained, and if it exceeds 200 parts by weight, the amount of the binder material becomes relatively large and the above-mentioned action of the fine wool particles is impaired. This is not preferable because the effects of the invention cannot be sufficiently obtained. Above all, 10 to 100 parts by weight of wool fine particles are used.
More preferably, it is in the range of 100 parts by weight.

The cloth material used in the present invention is not particularly limited as long as it can be dyed with a dye.
Examples thereof include polyester, cotton, nylon, wool, silk and acrylic. Usually, disperse dyes are used for dyeing polyester cloth, reactive dyes are used for cotton cloth, and acid dyes are used for nylon, wool, and silk, but are not limited to these. Not something. Wool fine particles are non-dyeing to disperse dyes, so if a disperse dye is used as the dye, it will be possible to secure a higher quality image with more clear and high color density without further blurring. It is preferable to use a disperse dye, and at this time, as a cloth material, a cloth made of polyester fiber capable of ensuring excellent dyeing performance (level dyeing property, fastness and sharpness) by dyeing with a disperse dye is preferable.

In order to obtain a cloth for ink-jet dyeing, the wool fine particles, or the wool fine particles and the binder material, in the form of an aqueous liquid, that is, as an aqueous emulsion or aqueous solution, are subjected to a pad method, a spray method, a dipping method, a coating method,
It may be dried after being applied to the cloth material by various applying means such as an injection method. Since the aqueous liquid has a relatively low viscosity, the pad method and the spray method are preferably used. When a binder material is used, it is desirable to simultaneously apply these to the cloth by the above-mentioned means using an aqueous liquid containing wool fine particles and a binder material, whereby both components are more evenly mixed. Since it is applied to the cloth in the state, the adhesion of the fine wool particles to the cloth material is further improved.

When the wool fine particles or the cloth for ink jet dyeing containing the wool fine particles and the binder material is subjected to ink jet dyeing, a dyed product which is clear and delicate and has a high color density and high quality can be obtained.
Although the mechanism of action at the time of dyeing is not clear, it is estimated as follows. That is, when ink consisting of dye is ejected from the nozzle of the printer and attached to the fabric surface,
Moisture in the ink is absorbed and held by the wool fine particles having water absorbability, and a part of the water is transferred to the fabric fibers, while the organic solvent component in the ink is also absorbed and held by the wool fine particles having oil absorbability. Since the part is transferred to the fabric fiber, the ink does not spread in the direction of the constituent fiber bundles, so that the bleeding is effectively prevented. In addition, the fine wool particles also effectively prevent the ink droplets from penetrating and diffusing inside the fabric, improving the surface concentration of the dye, and thus forming a pattern excellent in color development. Further, interference fringes are hardly generated, color breakage is not generated, and the dot shape is adjusted to a round shape, so that high-quality image quality is secured. Moreover, since the wool fine particles absorb both the water content in the ink and the organic solvent component, even if another cloth comes into contact with the cloth surface, it does not transfer from the cloth surface to another cloth, etc., and transfer stain is also effectively generated. To be prevented.

The ink jet method for ink jet dyeing is not particularly limited, and any method such as a thermal method, a piezo method and a charge control method can be applied.

In the ink jet dyeing method of the present invention, an ink made of a dye is used. The particle size of this dye is preferably 1 μm or less. If necessary, various additives such as a dispersant, a surface tension adjusting agent, and a drying inhibitor can be added to the ink.

The viscosity of the ink is 2 to 10 cps (25
It is preferably set in the range of (° C.). If it is less than 2 cps, bleeding may occur on the cloth, while if it exceeds 10 cps, the ejection stability of the ink is lowered due to the high viscosity, which is not preferable. The surface tension of the ink is 30.
It is preferably set in the range of -60 mN / m. Thirty
If it is less than mN / m, ejection failure or bleeding of ink tends to occur, while if it exceeds 60 mN / m, ejection failure of ink tends to occur and the dot diameter becomes too small, which is not preferable.

The cloth subjected to the above ink jet dyeing is subjected to a heat treatment for fixing and coloring the dye, but when a wax agent is used as the binder material,
By this heat treatment, the wax agent melts and causes migration together with the dye, so that an appropriate dot diameter matching the resolution of the inkjet printer is secured. In addition, by ensuring an appropriate dot diameter, the occurrence of interference fringes can be more reliably prevented, which in turn ensures clear and high-quality image quality. In addition, this heat treatment is 110 to 19
It may be performed at a temperature of about 0 ° C. for about 1 to 10 minutes. Also,
The heat treatment method is not particularly limited, but high pressure steam, high temperature steam, and dry heat methods are preferably used.

The dyed fabric that has been subjected to the above heat treatment has very few unfixed dye components and is unlikely to cause stains, and thus can be directly used as a dyed product, but may be washed if necessary. In this washing, however, the amount of unfixed dye components is small, so light washing is sufficient, and there is no color contamination of the fabric due to elution of unfixed dye. Furthermore, since the dye component contained in the cleaning waste water is small, it is not necessary to perform any special waste water treatment.

[0039]

EXAMPLES Next, examples of the present invention will be specifically described in comparison with comparative examples. An ink having the following composition was used as the ink for inkjet dyeing.

(Disperse dye ink) * Yellow CIDispers Yellow 42 7.0 parts by weight Anionic dispersant 2.0 parts by weight Propylene glycol 30.0 parts by weight Deionized water 61.0 parts by weight * Magenta CIDispers Red 283 6.0 Parts by weight anionic dispersant 1.5 parts by weight propylene glycol 30.0 parts by weight ion-exchanged water 62.5 parts by weight * cyan CI Dispers Blue 60 5.0 parts by weight anionic dispersant 2.0 parts by weight propylene glycol 30.0 Parts by weight Ion-exchanged water 63.0 parts by weight * Black CIDispers Orange 30 3.0 parts by weight CIDispers Red 167 1.5 parts by weight CIDispers Blue 73 6.0 parts by weight Anionic dispersant 3.0 parts by weight Propylene glycol 30.0 Parts by weight Ion-exchanged water 56.5 parts by weight <Example 1> Kyoeisha Chemical Co., Ltd. Mary Powder 30 (amorphous wool fine particles, average particle size 8.8 μm, water absorption rate 3) 01 (m
L / 100 g), oil absorption rate 104 (mL / 100 g), water absorption rate / oil absorption rate = 2.90) was prepared, and a pretreated aqueous solution containing 10% by weight was prepared.
2 g / m ² ) was picked up by an ordinary pad method so that the pick-up was 83%, and then 10% at 120 ° C.
It was dried for 1 minute. Next, using a piezo type inkjet printer, four colors (yellow,
Printing with a disperse dye ink (magenta, cyan, black) is performed, and the resulting printed fabric is heat-treated at 190 ° C for 5 minutes to fix the dye and develop color, and then subjected to normal reduction cleaning and printing. A dyed product was obtained.

Example 2 Example 1 was repeated except that an aqueous solution containing 10% by weight of Mary powder 30 and 4% by weight of cell base gum CRM (carboxymethyl cellulose) manufactured by Daicel Chemical Co., Ltd. was used as a pretreatment liquid. A printed dyed product was obtained in the same manner as described above.

Example 3 As a pretreatment liquid, wool powder (amorphous wool fine particles, average particle size 9.5 μm, water absorption rate 307 (mL / 100 g), oil absorption rate 98.6 (mL / 1)
00g), water absorption / oil absorption = 3.11) of 10% by weight,
A printed dyeing product was obtained in the same manner as in Example 1 except that an aqueous liquid containing 4% by weight of cell base gum CRM was used.

<Example 4> As a pretreatment liquid, a wool powder manufactured by Daiwabo Polytech Co., Ltd. (fiber wool fine particles, average particle size 10 μm, water absorption rate 176 (mL / 100 g), oil absorption rate 81 (mL / 100 g), water absorption rate) / Oil absorption = 2.1
A printed dyed product was obtained in the same manner as in Example 1 except that an aqueous liquid containing 8% by weight of 8) and 4% by weight of cell base gum CRM was used.

<Example 5> Example 5 was carried out except that an aqueous solution containing 7% by weight of Mary powder 30 and 2% by weight of JIP500 (polyacrylic acid type water absorbent resin) manufactured by Sanyo Kasei Co., Ltd. was used as a pretreatment liquid. A printed dyed product was obtained in the same manner as in Example 1.

<Example 6> As a pretreatment liquid, 16% by weight of Mary powder 30 and Lipooil NT1 manufactured by Nichika Chemical Co., Ltd.
A printed dyed product was obtained in the same manner as in Example 1 except that an aqueous liquid containing 6% by weight of 2 (paraffin wax and wax emulsion containing a fatty acid ester) was used.

<Example 7> As the pretreatment liquid, an aqueous liquid containing 8% by weight of Mary Powder 30 and 4% by weight of Marcel Soapon (a solid vegetable surfactant of sodium carboxylic acid of vegetable oils and fats) manufactured by Lion was used. A printed dyed product was obtained in the same manner as in Example 1.

[0047]

[Table 1]

Comparative Example 1 An untreated polyester cloth was subjected to printing by ink jet dyeing, heat treatment and reduction cleaning in the same manner as in Example 1 to obtain a printed dyed product.

Comparative Example 2 A printed dyed product was obtained in the same manner as in Example 1 except that an aqueous liquid containing 9% by weight of cell base gum CRM was used as the pretreatment liquid.

<Comparative Example 3> Feather powder (feather fine particles, average particle size 8.7 μm) manufactured by Ishihara Chemical Co., Ltd. was used as a pretreatment liquid.
Was obtained and a printed dyed product was obtained in the same manner as in Example 1 except that an aqueous liquid containing 10% by weight of Cell Base Gum and 4% by weight of CRM (carboxymethylcellulose) was used.

<Comparative Example 4> As a pretreatment liquid, an aqueous liquid containing 10% by weight of Daiwabo Polytech Co., Ltd. superfine silk powder (silk fibroin fine particles, average particle size 9 μm) and 4% by weight of cell base gum CRM was used. A printed dyed product was obtained in the same manner as in Example 1 except for the above.

Comparative Example 5 As a pretreatment liquid, Showa Denko KK Triazet CX (collagen fine particles, average particle size 5 μm)
A printed dyed product was obtained in the same manner as in Example 1 except that an aqueous liquid containing 10% by weight of m) and 4% by weight of cell base gum CRM was used.

<Comparative Example 6> As a pretreatment liquid, cotton powder manufactured by Daiwabo Polytech Co., Ltd. (cotton fine particles, average particle size 12 μm)
A printed dyed product was obtained in the same manner as in Example 1 except that an aqueous liquid containing 10% by weight of m) and 4% by weight of cell base gum CRM was used.

Comparative Example 7 As a pretreatment liquid, 10% by weight of Fine Seal X45 (amorphous silica fine particles, average agglomerated particle size 4.5 μm) manufactured by Tokuyama Corp., cell base gum CR
A printed dyed product was obtained in the same manner as in Example 1 except that an aqueous liquid containing 4% by weight of M was used.

<Comparative Example 8> The same procedure as in Example 1 was carried out except that a 9% by weight aqueous solution of Neofix RP70 (content of polyethylene polyamine-based cationic resin: 70% by weight) manufactured by Nichika Kagaku Co., Ltd. was used as a pretreatment liquid. A printed dyed product was obtained.

<Comparative Example 9> As a pretreatment liquid, a 3 wt% aqueous solution of Asahi Guard AG-850 (fluorine-based water repellent content: 30 wt%) manufactured by Meisei Chemical Co., Ltd. was used. A printed dyed product was obtained in the same manner as in 1.

[0057]

[Table 2]

With respect to the printed dyed products obtained in the above Examples and Comparative Examples, the presence or absence of overall bleeding, the dot diameter of the dye ink, the dot shape, the color breakage of the color mixture portion, the color developability, the presence or absence of transfer stain, and the interference. Each item of the presence or absence of stripes was examined, and the quality as a product was evaluated comprehensively from these. The results are shown in Tables 3 and 4.

In addition, bleeding, color breakage, transfer stains, interference fringes,
For each item, the degree of occurrence is "none", "mild",
A four-level evaluation of "moderate" and "severe" was made. Further, each item of transfer stain, average dot diameter, roundness of dot shape, and color developability (dyeing density) was evaluated by the following methods.

Immediately after printing with ink (before heat treatment), the same fabric material is placed on the printed portion of the fabric, and a weight (500 g, diameter 10
(0 mm) was placed on the cloth and left for 1 minute, and the ink stain on the cloth was visually evaluated by four grades: none, light, medium, and severe.

(Average Dot Diameter) The average value of the dot diameter on the printed dyed product (fabric) after the color development and washing was obtained. The smaller the dot diameter is, the smaller the bleeding is. However, if the dot diameter is too small, the dot feeling is too conspicuous, and the visual observation gives an impression as if the dyeing density is lowered, and a high-quality image cannot be obtained. On the other hand, if the dot diameter is large, bleeding occurs,
I can't get a sharp pattern. From the general printer resolution (360 dpi), the optimum dot diameter is 10
It is about 0 μm.

(Roundness of Dot Shape) The long diameter and short diameter of one dot of the printed dyed product (fabric) after the above color washing was measured, and the roundness was calculated by the following formula.

Roundness = roundness / major axis The roundness of five dots was measured, and the average value thereof, that is, the average roundness was calculated. The roundness represents the degree of deformation of a circular dot shape. The closer the roundness is to 1, the closer the circle is to a perfect circle, and the dots are not deformed, so that the image quality is improved.

(Coloring property) The lightness L ^* of a part (3 cm × 3 cm square) of the printed portion of the printed dyed product (fabric) after color development washing was measured by a colorimeter (CM-3700d manufactured by Minolta). The smaller the lightness L ^* value, the higher the dyeing density and the more excellent the color developability. The lightness L ^* is the lightness according to the L ^* a ^* b ^* colorimetric method (JIS Z8729-1980).

Further, the judgment of quality is ⊚ ... excellent, ∘ ... good,
The evaluation was made into 5 grades: Δ: acceptable, ×: somewhat defective, XX: defective.

[0066]

[Table 3]

[0067]

[Table 4]

As is clear from the results of Tables 3 and 4, in the dyeing using the ink-jet dyeing fabric of the present invention (Examples 1 to 7), the dyeing density is high and there is no ink bleeding or color breakage. It can be seen that it is possible to give a clear dyeing pattern with high color density and to obtain a proper dot diameter and a proper dot shape, and to obtain a high-quality dyed product without the occurrence of interference fringes. In addition, transfer stains do not occur.

On the other hand, in the dyed products of Comparative Examples 1 to 6 and 8, the bleeding prevention property was poor, the pattern was not clear, and color breakage occurred in the color mixing part, and the quality was inferior. There is also dirt. Further, interference fringes are generated in the dyed product of Comparative Example 8. Furthermore, the dyed products of Comparative Examples 1, 2, 5 and 7 have insufficient color developability. In addition, although the dyed products of Comparative Examples 7 and 9 did not cause bleeding, color breakage occurred, and the dot diameter became too small, so that the apparent color developability was insufficient and interference fringes also occurred. is doing.

[0070]

INDUSTRIAL APPLICABILITY In the ink-jet dyeing cloth according to the present invention, wool fine particles are added to the cloth material,
Decrease in dyeing density in ink jet dyeing, bleeding,
It is possible to prevent color breakage and interference fringes, and to give a clear and delicate dyeing pattern of high quality with high color density. Further, the dyeing rate is high and the occurrence of transfer stain can be prevented.

In the above, the water absorption rate of the wool fine particles is 17
0-350 (mL / 100g) with oil absorption of 80-
When it is 200 (mL / 100 g) and the water absorption rate / oil absorption rate is in the range of 2.0 to 4.0, a high-quality image with more bleeding and more clear and high color density is secured. be able to.

When the fine wool particles are amorphous, the color developability can be further improved, and the dot shape of the ink can be made closer to a perfect circle, thereby further improving the image quality. it can.

When the fine wool particles are bound to the cloth material by the binder material, the fixing force of the fine wool particles to the cloth can be improved. Therefore, the fine wool particles are separated from the cloth before printing. It is possible to sufficiently prevent the fabric from being damaged, and it is possible to provide a fabric for dyeing with more stable quality.

When the binder material is composed of one or more compounds selected from the group consisting of water-soluble polymers, water-absorbent resins, wax agents and solid surfactants, the adhesive strength is further improved. Can be made.

Further, the particle size of the wool fine particles is from 0.05 μm to
When it is 100 μm, the fine wool particles absorb the ink promptly and sufficiently, so that bleeding can be further prevented and
Since the dye in the ink is efficiently dyed by the fabric fibers during the heat treatment, it is possible to secure a high-quality image that is further excellent in color development.

Further, the fine wool particles are contained in 5% of the cloth material.
When it is applied at a rate of ˜20 g / m ² , good texture of the fabric can be sufficiently secured, and lowering of dyeing density, bleeding, color breakage, and interference fringes can be more reliably prevented.

Further, in the dyeing method according to the present invention, a cloth material is impregnated with an aqueous liquid containing fine wool particles, or an aqueous liquid containing fine wool particles and a binder material, and a desired pattern is applied to the dried cloth by an ink jet method. Since printing is performed and then heat treatment is applied, it is possible to prevent lowering of dyeing density, bleeding, color breakage, and interference fringes in inkjet dyeing, which leads to clear, delicate, high color density, high-quality dyed products at low cost. Can be manufactured at. Furthermore, since a high dyeing rate is achieved, transfer stains can be prevented, stains due to unfixed dye do not occur even if washing is performed after heat treatment, if necessary, and the dye component contained in the wash drainage is also small. Therefore, there is no need for special wastewater treatment. When the aqueous liquid contains a binder material, the fixing strength of the wool fine particles to the fabric is improved, and thus a dyed product of more stable quality can be provided.

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shuichi Shimazu 2-7-17-510 Habino, Habikino-shi, Osaka (56) Reference JP-A-3-113081 (JP, A) JP-A-11-293571 (JP , A) JP-A-4-89836 (JP, A) JP-A-55-84556 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) D06P 5/00 111

Claims (9)

(57) [Claims] 1. A fabric for ink-jet dyeing, which is obtained by adding fine wool particles to a fabric material. 2. The water absorption of the fine wool particles is 170 to 35.
0 (mL / 100g) and oil absorption of 80 to 200
(ML / 100 g), and the water absorption / oil absorption is in the range of 2.0 to 4.0, The cloth for inkjet dyeing according to claim 1. 3. The inkjet dyeing cloth according to claim 1, wherein the fine wool particles are amorphous fine particles. 4. The inkjet dyeing fabric according to claim 1, wherein the fine wool particles are bound to a fabric material by a binder material. 5. The inkjet dyeing according to claim 4, wherein the binder material comprises one or more compounds selected from the group consisting of water-soluble polymers, water-absorbent resins, wax agents and solid surfactants. Cloth for use. 6. The wool fine particles have a particle size of 0.05 μm to
It is 100 micrometers, The cloth for inkjet dyeing of any one of Claims 1-5. 7. The wool fine particles are contained in an amount of 5 with respect to the fabric material.
To 20 g / m formed by applying a rate of ² any one the inkjet dyeing cloth according to claims 1-6. 8. An ink-jet dyeing method, which comprises impregnating a cloth material with an aqueous liquid containing fine wool particles, printing a desired pattern on the cloth after drying by an ink-jet method, and then performing heat treatment. 9. An ink jet dyeing method, which comprises impregnating a cloth material with an aqueous liquid containing fine wool particles and a binder material, printing the desired pattern on the cloth after drying by an ink jet method, and then performing heat treatment.