JP3445196B2 - Processing agent for inkjet printing of polyester fiber, textile for printing, and printing method - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a polyester fiber cloth used for ink-jet printing, a method for printing the cloth, and a treating agent used for the cloth.

[0002]

2. Description of the Related Art Conventionally, as a method for printing a pattern on a cloth, a screen printing method, a roller printing method, a rotary screen printing method, a transfer printing method, etc. have been used. It is necessary to prepare engraving rollers, transfer paper, etc., and since the production of these screen frames, engraving rollers, transfer paper is quite expensive, it is uneconomical if a lot of them are not produced. It had the drawback of not being able to 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,
Although a technique for printing the result by an inkjet method has been developed, since these are limited to paper to be printed, there is a problem that bleeding is markedly inferior in color development when applied to a fabric, which is a problem. A solution was desired.

In the ink-jet printing of polyester fiber cloth, 1) a method of using a water-soluble metal salt (such as Glauber's salt and salt) and a water repellent as a pretreatment, 2) using a water-soluble metal salt and a sizing agent. Method 3) A method of using a water-soluble metal salt, a water repellent and a sizing agent has been carried out.

However, the above method does not have a sufficient bleeding preventing effect, and the desired coloring property cannot be obtained. Particularly, in the case of a method using a water repellent agent, the polyester fiber is originally hydrophobic, so that the ink There was a problem that the absorption was poor, ink was collected on the surface of the cloth, ink was dripping, and post-treatment was difficult.

[0006]

DISCLOSURE OF THE INVENTION The inventors of the present invention have earnestly studied the optimum pretreatment used for ink jet printing, a printing method using the same, and a treatment agent used for the pretreatment. As a result, the inventors have found a means for solving the problems that have been present in the past, and completed the present invention, preventing the occurrence of bleeding, and being excellent in color development,
An object of the present invention is to provide a fabric for inkjet printing, a printing method, and a treating agent, which have excellent printing quality in terms of sharpness and color reproducibility.

[0007]

The present invention has the following constitution in order to achieve the above object.

First, the first invention is a treatment agent for ink-jet printing containing a dispersion inhibitor and a permeation inhibitor .
The dispersion inhibitor is a water-soluble metal salt and an acrylic compound.
Therefore, the above-mentioned permeation inhibitor is a combination of a paste and an alkyl ketene
Ru-jet textile printing process agent der, characterized in that ones.

[0009] Next, the second invention is a fabric made of polyester fibers, which is for inkjet printing cloth, characterized in that it is applied in the treatment agent according to the first - th invention.

Furthermore, the third invention, the fabric consisting of polyester fibers, after the application of the treatment agent according to the first - th invention, is dried and the fabric, and then an ink jet method using a disperse dye Printed on the above fabric with
This is a method for inkjet printing a polyester fiber cloth , which comprises drying the cloth, and then heat-treating the cloth.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.

The cloth used in the present invention is a woven fabric, a knitted fabric or a non-woven fabric, and includes polyethylene terephthalate, polyethyleneoxybenzene zeate,
It is produced using filaments or staple fibers made of a polyester-based fiber-forming polymer such as polybutylene terephthalate.

First, the treating agent of the present invention will be explained. As described in the first aspect of the invention, the treating agent is a dispersion-inhibiting agent having a dispersion-inhibiting effect on a disperse dye, and a polyester fiber cloth. Of the present invention by containing a permeation suppressant that suppresses the permeation of the disperse dye, wherein the dispersion suppressor improves the affinity of the disperse dye with the fabric, and the permeation suppressor prevents diffusion into the fabric. To solve the problem of.

[0014] Specifically, the distributed inhibitor, using a water-soluble metal salt and an acrylic compound, and as the permeation suppressing agent, to use a sizing agent and alkyl ketene compound.

The above water-soluble metal salt suppresses the dispersion of the disperse dye by the salting-out effect and the aggregating effect, improves the affinity between the dye and the polyester fiber cloth, and further obtains the chemical stability of the dye. Specific examples include Glauber's salt and salt. These are preferable because they are cheaper, have no toxicity, and have higher water solubility than other substances having a salting-out effect / aggregating effect, such as potassium chloride, magnesium chloride, and aluminum sulfate.

The water-soluble metal salt is preferably used so as to adhere to the cloth in an amount of 2.0 to 7.0% by weight. If the amount of the water-soluble metal salt used is less than 2.0% by weight, the affinity between the dye and the fabric will not be sufficiently improved, and the desired color developability cannot be obtained, and (b) exceeds 7.0% by weight. In this case, there is a problem in that bleeding is likely to occur, the water-soluble metal salt absorbs water, a density difference occurs depending on the coloring time, and the stability of coloring is insufficient.

The acrylic compound absorbs and retains water in the treatment agent to reduce the dispersive ability of the disperse dye, thereby improving the affinity between the polyester fiber cloth and the dye. Specifically, acrylic amide, oleic acid, polyacrylic acid, polymethacrylic acid and the like can be used.

The above-mentioned acrylic compound is added to the fabric in an amount of 0.
It is preferable to use such that the amount of the acrylic compound adheres to 2 to 2.0% by weight. If the amount of the acrylic compound used is less than 0.2% by weight, the water retention becomes insufficient and the affinity between the dye and the fabric is increased. However, if the amount exceeds 2.0% by weight, there is a problem that the dye does not reach the fabric sufficiently and the dye fixation is lowered.

As the sizing agent, which is used in a usual printing process, a mineral type paste composed of starch, modified starch, sodium alginate, methyl cellulose, carboxymethyl cellulose, guar gum, galactomannan, diatomaceous earth, montmorillonite, etc. Any one or more of the agents and emulsion pastes thereof can be used, and examples of the alkyl ketene compound include an alkyl ketene dimer emulsion.

Thus, by using the sizing agent and the alkyl ketene compound in combination, the alkyl ketene compound suppresses the permeation of the dye into the cloth, and the sizing agent further permeates the dye in the lateral direction (area direction) of the cloth. As a result, the high bleeding prevention effect can be obtained.

The sizing agent is preferably used so as to adhere to the cloth in an amount of 0.2 to 2.0% by weight, and the alkylketene compound is preferably used in an amount of 0.2 to 2.0% by weight. . When the amount of the sizing agent attached to the cloth is less than 0.2% by weight or the amount of the alkyl ketene compound attached is less than 2.0% by weight, the dye permeation proceeds, and a satisfactory bleeding preventing effect is obtained. If the amount of the sizing agent attached to the fabric exceeds 2.0% by weight or the amount of the alkyl ketene compound attached to the fabric exceeds 2.0% by weight, there is a problem that the fixation of the dye is reduced.

As described above, the ink-jet printing treatment agent of the present invention contains a water-soluble metal salt, an acrylic compound, a sizing agent and an alkyl ketene compound. Dilute with water + glycerin, etc., and apply the above-mentioned treatment agent to the polyester fiber cloth by the pad-nip method, coating method, spray method, kiss-roll method, etc. so that the pick-up rate is 30.0 to 80.0%. The cloth for inkjet printing according to the second invention is dried.

In this way, after the polyester fiber cloth pretreated for ink-jet printing is obtained, as described in the third invention, the above-mentioned cloth is formed by an ink-jet method using a disperse dye. The fabric is printed, then the fabric is dried, and then heat-treated to develop the color.

The ink jet method used in the present invention is a bubble jet method in which a heating resistance element is embedded in a nozzle, the ink is boiled by the heat generation, and the ink is ejected by the pressure of the bubble, and an electric signal is applied to a piezoelectric element. Pulse jet method that ejects ink particles by exciting the volume change of the ink chamber by adding and deforming, ink is continuously jetted under pressure from a nozzle that is vibrating ultrasonically to make particles, and the particles are controlled to a constant charge amount An example is a charge control system in which recording is performed while recording and non-recording particles are recorded separately by passing through the electrolysis and deflecting.

By printing in this manner, a fabric having excellent coloring properties and less bleeding can be obtained.

[0026]

Embodiments will be described in detail below based on embodiments. First, as the cloth, 100% of 90d / 24f polyester multifilament containing polyethylene terephthalate as a main component was used. 146 warp / inch / weft 91
A plain weave having a book / inch and a basis weight of 105 g / m ² was used.

(Example 1) Subsequently, a treating agent having the following formulation was prepared, and this was applied to the above cloth by a pad nip method so that the pickup rate would be 70%, and then for 1 minute x
It was dried at 130 ° C. Glauber's salt (water-soluble metal salt) 3.0% by weight Tamanori SA25 2.0% by weight (acrylic compound, manufactured by Arakawa Chemical Industries, Ltd.) Indalca PA-30 2.0% by weight (carboxymethyl cellulose; paste, Cesalpinia Chemicals) Size Pine K903 5.0 wt% (Alkyl ketene compound, Arakawa Chemical Industry Co., Ltd.) Water 88.0 wt% ────────────────────── ──────────── Total 100.0% by weight

Next, the following four types of ink are mounted on a bubble jet type ink jet printing apparatus, and 300
The above fabric was continuously printed with dots / inch, then the fabric was dried at 140 to 150 ° C. for 1 minute, and further heat treated in steam of 85% Rh for 8 minutes at 180 ° C. After that, the product was washed and dried to obtain the product of Example 1. (1) CIDisperse Yellow 79 10.0% by weight Water 90.0% by weight (2) CIDisperse Red 184 10.0% by weight Water 90.0% by weight (3) CIDisperse Blue 60 10.0% by weight Water 90.0% by weight % (4) CIDisperse Black 1 10.0% by weight Water 90.0% by weight

(Comparative Example 1) A treating agent having the following formulation was prepared and picked up to 70% by the pad nip method.
% To the above cloth for 1 minute x 130
It was dried at ° C. Example 1 was applied to the cloth thus obtained.
Printing was performed under the same formulation and conditions as in Example 1 to obtain a fabric of Comparative Example 1. Glauber's salt (water-soluble metal salt) 3.0 wt% Sumiflule oil EM-21 2.0 wt% (water repellent, Sumitomo Chemical Co., Ltd.) Water 95.0 wt% ───────── ───────────────────────── Total 100.0% by weight

(Comparative Example 2) A treating agent having the following formulation was prepared and picked up to 70% by the pad nip method.
% To the above cloth for 1 minute x 130
It was dried at ° C. Example 1 was applied to the cloth thus obtained.
Printing was carried out under the same formulation and conditions as above to obtain a fabric of Comparative Example 2. Glauber's salt (water-soluble metal salt) 3.0% by weight Indalca PA-30 2.0% by weight (carboxymethyl cellulose; sizing agent, manufactured by Cesalpinia Chemicals) Water 95.0% by weight ─────────── ─────────────────────── Total 100.0% by weight

(Comparative Example 3) A treating agent having the following formulation was prepared and picked up to 70% by the pad nip method.
% To the above cloth for 1 minute x 130
It was dried at ° C. Example 1 was applied to the cloth thus obtained.
Printing was performed under the same formulation and conditions as in Example 1 to obtain a fabric of Comparative Example 1. Glauber's salt (water-soluble metal salt) 3.0 wt% Sumiflule oil EM-21 2.0 wt% (water repellent manufactured by Sumitomo Chemical Co., Ltd.) Indalca PA-30 2.0 wt% (carboxymethyl cellulose; paste) Agent, manufactured by Cesalpinia Chemicals) Water 93.0% by weight ───────────────────────────────── Total 100.0 weight%

The printed fabrics of Example 1 and Comparative Examples 1 to 3 obtained as described above were evaluated for bleeding and color development by visual observation with a specialized inspector. The results are shown in Table 1 below. The evaluation in Table 1 is as follows.

(Bleed) ◎: No blur ○: Slight blurring △: Bleed ×: remarkable bleeding

(Coloring property) ○: Good △: Slightly defective ×: defective

[0035]

[Table 1]

As is clear from the above results, the printing cloth obtained by the constitution of the present invention had no bleeding, and the color development was good, and the printing quality was very excellent.

[0037]

EFFECTS OF THE INVENTION According to the present invention, since a polyester fiber cloth having no bleeding and excellent color developability can be obtained, it becomes possible to provide high quality printed products in various fields, and Even in the field, it has the effect of being able to immediately respond to the diversification of tastes.

Continuation of front page (51) Int.Cl. ⁷ Identification code FI D06P 5/00 112 D06P 5/00 112 B41J 2/01 B41M 5/00 A B41M 5/00 B D06M 13/13 D06M 13/13 15/263 15/263 D06P 3/54 A D06P 3/54 D06M 101: 32 // D06M 101: 32 B41J 3/04 101Y (58) Fields investigated (Int.Cl. ⁷ , DB name) D06P 5/00 101-106 D06P 5/00 111-112 D06M 13/13

Claims (3)

(57) [Claims] 1. A Inn containing a dispersion inhibitor and permeation suppression agent
A treatment agent for jet printing, wherein the dispersion inhibitor is water.
It is a soluble metal salt and an acrylic compound,
A treatment agent for inkjet printing, characterized in that the agent is a paste agent and an alkyl ketene compound . 2. A fabric made of polyester fiber
And the treatment agent according to claim 1 is added.
Inkjet textile printing fabric . 3. A cloth made of polyester fiber,
After the treatment agent of claim 1 is applied and dried, dispersion dyeing is performed.
Printing on the above cloth by ink jet method using
The fabric is then allowed to dry and then heat treated.
Inkjet printing of polyester fiber cloth
Way .