JP2001098473A - Treating agent for ink jet printing of cellulosic fiber and/or protein fiber, fabric for printing and method for printing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a preliminarily treating agent which makes it possible to print cellulosic fibers and/or protein fibers by an ink jet method, to provide a preliminarily treated fabric, and to provide a method for printing using the same. SOLUTION: This treating agent for the ink jet printing comprises a water-soluble meal salt, a hydrotropic agent, a polyethylene compound emulsion, a pH- adjusting agent, and polyoxyethyleneglycolether.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pre-treatment agent, a pre-treated cloth, and a printing method using the pre-treatment agent, which can print both cellulosic fibers and / or protein fibers by an ink jet method. .

[0002]

2. Description of the Related Art Conventionally, screen printing, roller printing, rotary screen printing, transfer printing, and the like have been used as a method of printing a pattern on a cloth. It is necessary to prepare engraving rollers, transfer paper, and the like, and the production of these screen frames, engraving rollers, and transfer paper is quite expensive, so that it is uneconomical to produce a considerable number of lots. It had the disadvantage that it could not respond quickly to diversification.

In order to solve these drawbacks, a sample is read by a scanner, and image processing is performed by a computer.
Techniques for printing the results by an ink-jet method have been developed.However, these methods limit the printing target to paper, so that when applied to a cloth, there is a problem that bleeding is remarkably inferior to color development. The solution was desired.

In addition, reactive dyes have been widely used for cellulosic fibers and acid dyes have been widely used for protein fibers in the case of dip dyeing and screen printing. Setting adjustment work is complicated and leads to a decrease in productivity.Therefore, a method capable of printing with as few processing agents and processing conditions as possible, specifically, using a reactive dye to inkjet both cellulosic fibers and protein fibers. It has been desired to establish a pretreatment method for printing.

Conventionally, methods for preventing bleeding include a method using a water repellent (JP-A-60-99081), a method using a water-soluble polymer (JP-A-61-55277), and a method using a specific viscosity. Method using dye ink (JP-A-62-1
01699) and a method using a water-insoluble water-absorbent resin and a polyoxyalkylene type nonionic surfactant (Japanese Patent Application Laid-Open No. 8-81887), but in these cases, the effect of preventing bleeding is insufficient. Yes, the color is poor,
Further, the fabric has a problem that the texture of the portion where the dye ink is adhered is deteriorated.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and suppresses the occurrence of bleeding.
In addition, in order to obtain a textile to be printed which is excellent in color developability, a printed pattern is clear, and has an excellent texture, a treating agent for inkjet textile printing, a textile for inkjet textile provided with the same, and further solving the above-mentioned problems An object of the present invention is to provide an inkjet printing method.

[0007]

Means for Solving the Problems To achieve the above object, the present invention has the following arrangement.

A first aspect of the present invention is a treating agent for inkjet printing, comprising a water-soluble metal salt, a hydrotropic agent, a polyethylene compound emulsion, a pH adjuster, and a polyoxyethylene glycol ether.

Next, a second aspect of the present invention relates to a fabric made of a cellulosic fiber or a protein fiber, which is provided with the treatment agent of the first aspect. is there.

Finally, a third invention is a method using the treatment agent according to the first invention, and specifically, a cellulosic fiber cloth, a protein fiber cloth, or both. After applying the treating agent according to the first aspect to the mixed cloth and drying the mixed cloth, the cloth is printed by an ink jet method using a reactive dye, and then the cloth is dried and then heat-treated. An ink jet printing method characterized by the following.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION (Fabric) The fabric used in the present invention is made of cellulosic fibers such as cotton, rayon and Tencel (registered trademark of Coatles Fibers Holdings Limited) and animal hair such as wool. A fiber made of a protein fiber such as fiber or silk, and each of the above fibers is used alone, or a blend of two or more fibers,
It is made by knitting. Examples of the cloth include woven, knitted, and non-woven fabrics.

(Treatment Agent) As described above, the treatment agent for ink-jet printing (hereinafter referred to as treatment agent) in the present invention comprises:
It contains a water-soluble metal salt, a hydrotropic agent, a polyethylene compound emulsion, a pH adjuster, and a polyoxyethylene glycol ether, which are appropriately diluted with water or the like before use.

(Water-soluble metal salt) Examples of the above-mentioned water-soluble metal salt include bow glass, salt, and the like. Improving the affinity between the fabric and the dye ink improves the dyeing property, and as a result, deep dyeing is achieved. In addition, the diffusion of the dye is prevented by improving the dyeing property to the fabric, and the effect of preventing bleeding is obtained.

The water-soluble metal salt is preferably used so as to adhere to the fabric in an amount of 2.0 to 7.0% by weight. If the amount of the water-soluble metal salt is less than 2.0% by weight, the affinity between the dye and the fabric is not sufficiently improved, so that the desired concentration and the effect of preventing bleeding cannot be obtained, and the amount exceeds 7.0% by weight. This is because there is a problem that the color is easily blurred and the coloring is not stable.

(Hydrotrope) Next, examples of the hydrotrope include urea, thiourea, diethylene glycol, glycerin and the like. When supplied to a heat treatment step after ink-jet printing, an optimum wettability is given to the atmosphere. And to promote color fixation of the dye.

The hydrotropic agent is added to the fabric at 5.0.
It is preferable to use so as to adhere to 20.0% by weight. If the amount is less than 5.0% by weight, the water content becomes insufficient during the coloring step, so that satisfactory coloring properties cannot be obtained.
When used in an amount exceeding 0.0% by weight, there is a problem that color bleeding occurs and the concentration is reduced due to penetration.

(Polyethylene Compound Emulsion) Further, the above polyethylene compound emulsion is obtained by emulsifying a water-containing polyethylene compound with a surfactant and suppressing the penetration of dyes in the thickness direction and the surface direction of the fabric. It is intended to do so. By the polyethylene compound emulsion, bleeding is suppressed, and at the same time, penetration of the dye, that is, diffusion is suppressed, and as a result, a deep and clear color is obtained. .

In particular, among the above polyethylene compound emulsions, those having an effect as a softening agent are most suitable.
EN (manufactured by Dainippon Ink Industries, Ltd.), Yodosol PE
400 (manufactured by NSC Japan), Sun Mariner S712 (manufactured by Nichika Chemical Co., Ltd.), and other suitable materials include polypropylene compounds. By using such a flexible polyethylene compound emulsion, it is possible to prevent bleeding, to improve the texture, and to reduce the occurrence of creases in the fabric.

The content of the polyethylene compound in the polyethylene compound emulsion is 2.0 to 2
The amount is preferably 0.0% by weight, and the amount of the emulsion adhered to the fabric is preferably 20.0 to 75.0% by weight. That is, the adhesion amount of the polyethylene compound to the cloth is set to 0.4 to 15.0% by weight.

At this time, if the content of the polyethylene compound in the fabric is less than 0.4% by weight, satisfactory bleeding-preventing effect and softening effect of the texture cannot be obtained, so that the print quality is poor and the product is easily wrinkled. The use of more than 15.0% by weight causes problems such as a feeling effect, discoloration and poor coloring.

(PH Treatment Agent) Next, a pH treatment agent is used for the treatment agent of the present invention. Specifically, it is possible to use an alkaline agent such as baking soda, soda ash, or the like, thereby adjusting the pH during the color forming step to 8 to 9. For that purpose, the amount of the pH treating agent adhering to the fabric is set to 0.5 to 5.0% by weight.

(Polyoxyethylene glycol ether) The polyoxyethylene glycol ether is further added to improve the solubility of the dye on the fabric when the dye is applied in the printing step, and It absorbs moisture from steam to enable improvement of color development. In particular, in the case of this polyoxyethylene glycol ether, it is possible to cope with slight fluctuations in the coloring temperature, so that even a slight temperature setting error does not hinder the coloring, and greatly affects the stability of the coloring. You do it.

(Fabric for Inkjet Printing) As described above, a water-soluble metal salt, a hydrotropic agent, a polyethylene compound emulsion, a pH adjuster, and a polyoxyethylene glycol ether are diluted with water or the like to carry out inkjet printing. Although it was described in detail that the treatment agent for the
The treatment agent is applied to the cloth by a pad nip method, a spray method, a coating method, a kiss roll method, and the like, and then dried to obtain the cloth for inkjet printing according to the second invention.

(Inkjet printing method) As described above,
After a treatment agent for ink-jet printing is applied to the cloth to obtain a pre-treated cloth, the cloth is printed by an ink-jet method. The ink jet method used in this printing process is a bubble jet method in which a heating resistor element is embedded in the nozzle, the ink is boiled by the heat generated, and the ink is ejected by the pressure of the bubbles, and the piezoelectric element is deformed by applying an electric signal to the element. A pulse jet method that excites the volume change of the ink chamber and discharges ink particles, ink is continuously ejected under pressure from ultrasonically vibrating nozzles to form particles, and the particles are controlled to the charged amount. An example is a charge control method in which recording is performed by deflecting the recording and recording the recording and non-recording particles separately.

After the printing step, the cloth is dried, and then supplied to a color forming step, where the dye is fixed and reacted in wet heat to obtain a product. At this time, as described above, it is important to adjust the pH to 8 to 9,
Here, if the pH is less than 8, fixing and reaction of the reactive dye are insufficient and color development is deteriorated. If the pH is more than 9, the fibers are hydrolyzed and cause embrittlement.

[0026]

Next, the present invention will be described in detail with reference to examples.

Example 1 First, a plain woven fabric having a basis weight of 120 g / m ² was woven using a spun yarn composed of warp 40 count and horizontal 40 count (English type cotton count) using 100% cotton as a cellulosic fiber. Thereafter, the fabric is baked, desizing,
Scouring and bleaching were performed.

Next, a treatment agent having the following formulation was applied to the above-mentioned cloth by a pad nip method so as to have a pickup rate of 70%, and then dried.

Formulation (1) Bow Nit (water-soluble metal salt) 2.5% by weight Urea (hydrotrope) 10.0% by weight Finetex PEN (polyethylene compound emulsion) 5.0% by weight Baking soda (pH adjuster) 2.0% by weight Polyoxyethylene glycol ether 2.0% by weight Water 78.5% by weight １０ 100.0% by weight

Next, the following four kinds of reactive dye-containing inks are mounted on a bubble jet type ink jet printing apparatus, and continuously printed on the cloth at 360 dots / inch, and then dried. A heat treatment was performed in a steam of 91% Rh for 20 minutes at a temperature of 104 ° C., followed by washing and drying to obtain a product of Example 1.

(1) CIReactive Yellow 2 20.0% by weight water 80.0% by weight (2) CIReactive Red 24 20.0% by weight water 80.0% by weight (3) CIReactive Blue 49 20.0% by weight % Water 80.0% by weight (4) CIReactive Black 1 20.0% by weight Water 80.0% by weight

(Example 2) Subsequently, a plain woven fabric having a basis weight of 97 g / m ² was woven with silk yarn of 21 d warp and 21 d width using 100% silk as a protein fiber, and the woven fabric was wool in a conventional manner. After baking, desizing, scouring, and bleaching treatments, a treatment agent having the same formulation as in Example 1 was applied to the above-mentioned cloth by a pad nip method so as to have a pickup rate of 70%, and then dried. Printing was performed by the method and under the conditions described above to obtain a product of Example 2.

(Example 3) Next, a plain woven fabric having a basis weight of 141 g / m ² was woven using a blended yarn consisting of 41% cotton and 59% silk, and then the woven fabric was baked and desizing by a conventional method. , Scouring and bleaching treatments, and then a treating agent having the same formulation as in Example 1 was applied to the above-mentioned cloth by a pad nip method at a pickup rate of 70%.
%, Dried and then printed by the same method and conditions as in Example 1 to obtain a product of Example 3.

(Comparative Example 1) 100% cotton similar to that of Example 1
A treatment agent having the following formulation was applied to the untreated cloth by a pad nip method so as to have a pickup rate of 70%, and then dried. Subsequently, printing was performed under the same method and conditions as in Example 1 to obtain a product of Comparative Example 1.

Formulation (2) Sumiflu Oil E21 0.3% by weight (fluorine-based water repellent manufactured by Sumitomo Chemical Co., Ltd.) Sodium carbonate (fixing reagent) 2.0% by weight Water 97.7% by weight １０ 100.0% by weight

(Comparative Example 2) 100% cotton similar to that of Example 1
A treatment agent having the following formulation was applied to the untreated cloth by a pad nip method so as to have a pickup rate of 70%, and then dried. Subsequently, printing was performed in the same manner and under the same conditions as in Example 1 to obtain a product of Comparative Example 2.

Formula (3) Aquakeep SA60S 3.0% by weight (Acrylic water-insoluble water-absorbent resin manufactured by Sumitomo Seika Co., Ltd.) Pegnol L-6 3.0% by weight (Toho Chemical Industry Co., Ltd. (Ionic surfactant) Ethylene glycol (solvent) 5.0% by weight Water 89.0% by weight １０ 100.0% by weight (Comparative Example 3) On a 100% cotton raw fabric similar to that in Example 1,
A treating agent having the following formulation was applied by a pad nip method so as to have a pickup rate of 70%, and then dried.
Subsequently, printing was performed by the same method and conditions as in Example 1 to obtain a product of Comparative Example 3.

Formulation (2) Carboxymethylcellulose (glue) 2.0% by weight Sodium carbonate (fixing reactant) 2.0% by weight Water 96.0% by weight １０ 100.0% by weight

The printed fabrics of Examples 1 to 3 and Comparative Examples 1 and 2 obtained as described above were evaluated for bleeding and coloring by visual observation with a specialist inspector. The results are shown in Table 1 below. In addition, the evaluation of Table 1 is as follows.

(Bleeding) ：: No bleeding ○: Slight bleeding △: Bleeding X: Remarkable bleeding

(Coloring property) ：: good Δ: slightly poor ×: bad

[0042]

[Table 1]

As is evident from the above results, the printed fabric obtained according to the constitution of the present invention was free from bleeding, had good color development, and was very excellent in print quality.

[0044]

According to the present invention, it is possible to obtain a cellulose fiber fabric, a protein fiber fabric, or a fabric obtained by blending, cross-weaving and cross-knitting of cellulose fiber and protein fiber, which is excellent in color development without bleeding. Therefore, it is possible to provide high-quality printed products in various fields, and it is possible to quickly respond to diversification of tastes in the field of fashion. Furthermore, since cellulosic fibers and protein fibers having different properties can be treated by the same method, the effect of improving productivity is also exhibited.

Continuation of the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (reference) D06P 5/00 112 D06P 5/00 112 B41J 2/01 B41M 5/00 A B41M 5/00 B D06M 13/432 D06M 13 / 432 15/227 15/227 D06P 3/10 D06P 3/10 3/14 Z 3/14 3/66 Z 3/66 3/82 C 3/82 5/20 C 5/20 D06M 101: 10 // D06M 101: 10 B41J 3/04 101Y F-term (reference) 2C056 EA04 FB03 FC06 HA44 2H086 BA05 BA22 BA31 4H057 AA01 AA02 BA07 CA13 CA21 CA22 CA37 CB02 CB13 CB14 CB22 CB34 CB60 CB61 CC01 DA01 DA21 GA03 AA02 AA03 AB01 AB04 AC15 BA14 BA79 CA12 CA48 DA02

Claims (3)

[Claims] 1. An ink jet printing treatment agent comprising a water-soluble metal salt, a hydrotrope agent, a polyethylene compound emulsion, a pH adjuster, and a polyoxyethylene glycol ether. 2. A fabric made of cellulosic fiber and / or protein fiber, to which the treatment agent according to claim 1 is applied. 3. The cellulosic fiber cloth, the protein fiber cloth, or the mixed cloth of both, after the treatment agent according to claim 1 is applied and dried, a reactive dye is used to carry out the ink jet method. An ink-jet printing method comprising printing a fabric, drying the fabric, and then heat-treating the fabric.