JP2013209760A - Transfer paper for dye-printing and dyeing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide superior transfer paper which is used in a dye transfer printing method that conducts dye fixing treatment while closely attaching paper for dye-printing to a material to be printed.SOLUTION: The transfer paper is used in the dye transfer printing method that conducts the dye fixing treatment while closely attaching the paper for the dye-printing to the material to be printed, has base paper and a paste layer provided on the base paper through a noncontact coating method, and has an air resistance of 80,000 seconds or less.

Description

  The present invention relates to a transfer paper for textile printing used for transfer textile printing. In particular, the transfer paper for textile printing of the present invention is suitable for transfer textile printing on a printing material such as a fiber material or leather material.

  A textile printing method is known as a method for drawing a pattern firmly and finely with a dye on a fabric. The textile printing method can be roughly divided into a plate making printing method using plate making and a plate making printing method not using plate making.

  As textile printing by the plate making printing method, screen textile printing, roller textile printing, rotary screen textile printing, gravure printing or a method using these printing techniques is known and practiced industrially. However, there are restrictions on the number of colors in plate-making printing textile printing, and in particular, printing with three primary color separation formwork can express multicolor, but the hue and density of the three primary color composition can be adjusted. There are problems such as difficulty and reproducibility of the printing process due to the formation of multiple layers. In addition, engraving (plate making) costs are high in small lot production, and it is necessary to adjust the color paste more than the amount required for processing during printing. The problem is pointed out.

  As a new textile printing method for solving these problems, textile printing using a plate-free printing method is in the spotlight. In the plate-free printing method, image processing is performed by a computer or the like, and, for example, a pattern is printed on a substrate by ink jet printing using a water-based dye ink. As a printing printing method of the plate-free printing method, a direct printing method for directly printing on a printed material and a transfer printing method for printing a design on a transfer paper once and then transferring the design to the printed material have been proposed. .

  In the direct printing method using inkjet printing or the like, a design is directly printed on a fabric that has been pretreated to prevent bleeding of inkjet ink. However, this method requires a pretreatment process to prevent bleeding, and when ink-jet printers print small dots of water-based dye ink on fabrics or transfer papers, they lack the leveling properties due to dot spots, Problems such as ink oozing and loss of image definition have been pointed out.

  As a method for solving these problems, transfer printing printing of a transfer printing method has been proposed. In transfer textile printing, transfer textile printing is performed using a transfer paper. As a transfer paper, a release agent layer containing a water-soluble varnish or a solvent-type varnish is provided on a base paper as a substrate (release paper). A sheet in which a paste layer containing a water-soluble paste is formed on a release agent layer is known, and in addition, a special multi-layer transfer paper is known. In such a transfer paper, after the ink is uniformly held in the paste layer by inkjet printing or the like on the transfer paper paste layer, the transfer paper is brought into contact with the substrate to perform transfer printing, and the design is applied to the substrate. Print.

Until now, various methods such as a wet transfer method and a dry transfer method have been proposed as transfer printing methods.
For example, a sublimation transfer method (dry transfer printing method) using a disperse dye sublimated by heat is known. In this method, a transfer paper on which sublimable ink is printed is brought into contact with a printing material, and the design is fixed by sublimation. However, the sublimation transfer method requires a process called sublimation, and its application is limited to polyester having dyeable dye sublimation, and requires the use of sublimation ink, and also dyes by sublimation. It is difficult to obtain high-definition images, and the fastness of printing is low, such as poor thermal stability and easy color fading due to washing.

  Further, a wet transfer method (Patent Document 1 and Patent Document 2) has been proposed in which a fabric made of cellulosic fibers or protein fibers is moistened with water and bonded to transfer paper and pressed firmly to transfer and dye the dye. However, since the wet transfer method requires a step of moistening with water, there is a problem that the fineness and reproducibility of the pattern are lacking.

  Furthermore, Patent Document 3 (Japanese Patent No. 4058470) or Patent Document 4 (Japanese Patent Laid-Open No. 06-270596) discloses a method for fixing a dye transferred onto a fabric by steaming or the like. . In this method, a dye ink is printed on a transfer paper having a mixed glue layer (ink receiving layer) on a base paper (release paper) provided with a release agent layer, and this is dry-transferred to a fabric, thereby releasing the release paper. After peeling, the dye transferred by dry transfer onto the fabric is fixed by steaming or the like.

  However, the release paper used in this method is extremely expensive due to the use of a release agent that is expensive in its production and its low production efficiency, and is several times that of general base paper. The manufacturing cost is (5 to 10 times). That is, since the melting point of the release agent is generally low, when a paste layer (ink receiving layer) is provided on the release agent layer, the drying temperature after applying the mixed paste solution cannot be raised, The drying time becomes long and the production efficiency becomes very bad. For example, since the melting point of the polyethylene laminate release agent is about 110 ° C., the drying temperature cannot be increased to 110 ° C. or higher, and it is difficult to increase the production capacity (speed). Also, the conventional transfer paper is not easy to handle, and if the humidity of the transfer factory, the transfer paper storage conditions or the dry transfer conditions are inappropriate, the ink receiving layer is transferred 100% and only the release paper is transferred. In some cases, it cannot be peeled cleanly. In such a case, defective products are generated and paper recycling is difficult. Furthermore, in order to cope with small-quantity, multi-product production, the transfer paper is in a state of being cut into pieces, so that it is practically difficult to paste the paper together for recycling.

That is, this method has the following problems.
(A) An expensive release paper is required. Therefore, the cost increases.
(B) There is a difficulty in releasability (reproducibility of paper peeling) in the step of transferring the ink receiving layer to the fabric, and the ink receiving layer may not be transferred to 100% fabric (peeling instability). If the ink receiving layer partially remains on the transfer paper, the portion becomes mottled and defective products are generated.
(C) Since the ink receiving layer is transferred to the fabric (preferably 100%), the used glue and resin all flow out to the waste water and excess dye ink also flows into the waste water in the washing process of the fabric after the dye fixing treatment. , Contaminate the drainage.
(D) Many general-purpose release agents have a low melting point, and when transferred at a high temperature, for example, 150 ° C. or higher, in order to improve transferability, the resin constituting the release agent melts and adheres to the fabric and is washed. Since the attached resin cannot be removed in the process, the texture of the fabric becomes hard. Alternatively, the melted resin causes a part of the ink receiving layer to adhere to and remain on the paper, generating defective products.
(E) There is also a problem in production efficiency. For example, when the melting point of the release agent is low, the drying temperature after the application of the mixed paste liquid is restricted, making it difficult to increase the production rate.

  In order to cope with such a problem, in Patent Document 5, a binder whose adhesive strength is reduced by an ink fixing process such as steaming is used for a transfer paper paste layer (ink receiving layer), whereby a release agent is applied to the transfer paper. It has been proposed to perform excellent transfer textile printing without providing a layer.

Japanese Patent No. 2925562 JP 06-2878970 A Japanese Patent No. 4058470 Japanese Patent Laid-Open No. 06-270596 International publication WO2011 / 055817

  The present inventors have studied transfer printing printing that performs dye fixing processing such as steaming while keeping the printed paper in close contact with the substrate, and devised the composition of the glue layer (ink receiving layer) of the transfer paper for printing. By doing so, it succeeded in developing the transfer paper for textile printing which has the outstanding textile printing characteristic, without using the mold release agent with a low melting point (patent document 5).

  An object of the present invention is to provide an excellent transfer paper in transfer textile printing in which a dye fixing process is performed while the textile paper is in close contact with a substrate. Specifically, as a transfer paper for transfer textile printing, it has excellent textile printing performance such as texture, fineness, fastness, color development, etc. for printed materials such as fiber materials or leather materials, and the above-mentioned problems ( Ecological and economical printing printing that can solve A) to (E), reduce material costs, improve processing reproducibility and quality, further reduce drainage load, and improve production efficiency. Paper is desired, and it is an object of the present invention to provide such a transfer paper.

  The present inventors have intensively studied the transfer paper used for the transfer printing printing in which the dye fixing process is performed while the printing paper is kept in close contact with the substrate to be printed. It has been found that a more excellent transfer paper for textile printing can be obtained by providing a layer (ink receiving layer) and further setting the air resistance to 80,000 seconds or less.

Although not limited thereto, the present invention includes the following inventions.
(1) Transfer paper used for transfer textile printing in which a dyed paper is fixed while the printed paper is kept in close contact with the substrate, and includes a base paper and a glue layer provided on the base paper, and the glue layer is non-contact The transfer paper, which is provided by a coating method and has a gas permeability resistance of 80000 seconds or less.
(2) The transfer paper according to (1), wherein the non-contact coating method is an air knife method or a curtain method.
(3) The transfer paper according to any one of (1) to (2), wherein the glue layer comprises a water-soluble synthetic binder and a natural glue.
(4) Textile paper obtained by printing dye ink on the adhesive layer of the transfer paper according to any one of (1) to (3).
(5) A step of printing dyed ink on the transfer paper according to any one of (1) to (3) to obtain a printed paper; a step of bringing the printed paper into close contact with the printing material; A method of performing textile printing on a printing material, comprising the step of fixing a dye to paper.
(6) The method according to (5), further comprising a step of peeling and removing the printed paper from the substrate after the fixing step.
(7) The method according to (5) or (6), wherein the fixing treatment is performed by steaming.
(8) The method according to any one of (5) to (7), wherein the dye ink is printed on a transfer paper for textile printing by inkjet printing.

  According to the present invention, fine textile printing without unevenness is possible. Further, according to the present invention, it is possible to efficiently fix a color material such as ink to the fabric by steaming or the like, and it is possible to reduce the energy load. Furthermore, according to the present invention, since it is not necessary to use a release agent having a low melting point, the transfer paper for textile printing of the present invention is excellent in productivity, and also excellent in weather resistance, so that it can be stored and stored. It is easy to handle and the transfer paper can be easily peeled off after textile printing. As a result, according to the present invention, it is possible to reproduce a fine printed pattern expression while achieving both excellent economic efficiency and ecology.

  In particular, according to the present invention, the problem of defective products caused by transfer paper peeling instability after transfer printing can be solved, the drainage load can be further reduced, high temperature application and high density dyeing while maintaining the texture. Making it possible to wear. In the present invention, since no release agent is used, the drying temperature of the mixed paste can be increased to improve the coating efficiency (for example, the drying temperature after application is increased to 150 to 180 ° C. The cost of the transfer paper can be reduced. In addition, according to the present invention, using a roller-type or flat-type existing pressing / heating facility that is currently widely used in the dyeing industry, printed materials such as cellulose fibers, protein fibers, leather, or synthetic fibers are used. Textile printing can be performed.

The present invention relates to transfer textile printing (also referred to as “paper textile printing method” in the present specification), in which a dye fixing process is performed in a state in which textile paper is attached to a substrate.
In the present invention, transfer textile printing refers to printing by transferring a pattern through a medium such as paper, and “transfer paper for textile printing” is used to transfer the pattern in such transfer textile printing. It is a paper that has a base paper layer and an adhesive layer (ink receiving layer). In the present invention, the “printing paper” means a printing paper for textile printing to which dye ink is applied. In the present invention, textile printing can be performed by the following method using a textile printing printing paper. That is, a base paper and a paste layer provided in a non-contact manner on the base paper are provided, and a dyed ink is printed on the transfer paper to obtain a printed paper, and the printed paper is adhered to the printed material, and then the printed material. Textile printing can be performed on a substrate by fixing the dye while keeping the printed paper in close contact with the substrate.

Transfer Paper for Textile Printing The transfer paper for textile printing of the present invention comprises a base paper and a glue layer provided on the base paper. The air resistance of the base paper is 80000 seconds or less. The present inventor has intensively studied transfer printing printing in which the dye fixing process is performed while the printed paper is kept in close contact with the substrate, and the air permeability resistance of the transfer paper has a great influence on the quality of the transfer printed printing. Furthermore, the present inventors have found that excellent transfer paper for textile printing can be obtained by making the air permeability resistance lower than that of conventional products such as International Publication WO2011 / 055817 (Patent Document 5). That is, when the air permeability resistance is higher than 80000 seconds, it is difficult to transfer the dye during the dye fixing process by steaming or the like. If it is present, the dye fixing process can be efficiently performed, and a delicate pattern or the like can be printed. In order to perform the dye fixing process by steaming or the like more efficiently, the air resistance of the transfer paper for textile printing is more preferably 60000 seconds or less, and further preferably 50000 seconds or less. Further, there is no particular lower limit of the air resistance, but for example, the air resistance of the transfer paper for textile printing can be about 100 seconds. In the present invention, the air resistance is measured according to the method described in JIS P 8117.

  To adjust the air resistance of textile printing to the above range, select the air resistance of the base paper within a certain range, adjust the coating amount of the glue layer, and select the coating method of the glue layer. And surface treatment on the glue layer. Specifically, for example, by using non-coated paper (non-coated paper having a gas permeability resistance of 100 seconds or less) as the base paper, which has a low air resistance compared to the coated paper, The air permeability resistance of the transfer paper for textile printing can also be lowered by reducing the coating amount or adopting a non-contact method as the adhesive layer coating method to make a bulky adhesive layer. Further, for example, the air resistance of the transfer paper for textile printing can be increased by surface treatment such as calendar treatment.

Base paper for printing paper for printing printing As the base paper used for the printing paper for textile printing of the present invention, an adhesive layer (ink receiving layer) can be applied thereon, and strength and flexibility that can be used for printing printing If it is the paper which has etc., it will not specifically limit. When applying the mixed paste, it is preferable to select a base paper in consideration of preventing wrinkles and the like and good dyeing quality.

As the base paper used for the transfer paper for textile printing of the present invention, generally used paper can be used. In consideration of the strength and flexibility of the paper, for example, the basis weight is 10 to 100 g / m ^2. , more preferably a basis weight of 20 to 80 g / ^{m 2,} more preferably may be basis weight paper is used for 40 and 80 g / ^{m 2.} Further, from the viewpoint of workability during textile printing, the transfer paper thickness (paper thickness) is preferably about 0.01 to 0.5 mm, and more preferably about 0.05 to 0.3 mm. The air resistance of the base paper is not particularly limited.

  The pulp composition of the base paper is not particularly limited, and for example, chemical pulp such as kraft pulp, mechanical pulp such as grind pulp, waste paper pulp made from waste paper, and the like can be suitably used. Further, non-coated paper or coated paper may be used as the base paper. The base paper can be appropriately mixed with a filler.

Adhesive layer (ink receiving layer)
The transfer paper for textile printing of the present invention has a paste layer as an ink receiving layer on the above-mentioned base paper. Adhesion amount of glue layer is not particularly limited, is preferably 5 to 70 g / ^{m 2} on dry basis, more preferably 10 to 50 g / ^{m 2,} may be 15 to 30 g / ^{m 2.} The amount of the glue layer attached depends on the cost of the printing paper and the strength and color developability when the binders adhere to the fabric, and may be appropriately selected in consideration of these factors.

  When applying the adhesive layer by coating with a coating apparatus (coating machine), it is important to appropriately manage the amount of adhesion. Various types of coating apparatuses have been developed so far. When producing the textile paper, various coating methods can be used as long as they are non-contact coating methods such as an air knife method, a curtain method, and a die method.

  In general, the coating method includes a contact-type coating method in which a coating apparatus and an object to be coated (in the present invention, transfer paper for textile printing is equivalent) are in contact with each other, and a coating liquid is applied. There is a non-contact type coating method in which a coating liquid is applied without contact between an apparatus and an object to be coated (in the present invention, a transfer paper for textile printing). Examples of the contact-type coating apparatus include a roll coater for pre-measuring the coating amount, a scraping-type blade (blade) coater, a rod coater, a comma coater, and the like for post-weighing. Examples of the non-contact type coating apparatus include an air knife coater, a curtain coater, and a die coater.

  In the case of a contact-type coating device, the smoothness of the surface of the glue layer is enhanced, but the thickness of the mixed glue layer tends to be uneven depending on the unevenness of the base paper, and the image may be uneven. On the other hand, in the case of the non-contact type coating method, the mixed glue layer can be uniformly applied along the irregularities on the surface of the base paper, so that it is possible to increase the fineness of the image particularly when ink jet printing is performed. Therefore, in the present invention, the coating layer is provided by a non-contact coating method.

  The solid content concentration at the time of applying the mixed paste can be appropriately selected according to the application method, but in the case of the non-contact type application method, 5 to 60% by weight is preferable. In particular, 10-30% by weight is desirable for the air knife method, 10-30% by weight for the curtain method, and 10-50% by weight for the die method.

  The coating speed is not particularly limited, but is preferably 5 m / min or more, and more preferably 10 m / min or more. When the coating speed is lower than 5 m / min, the mixed paste liquid penetrates into the base paper before drying, and the mixed paste layer that effectively contributes as an ink receiving layer is reduced. .

  The glue layer of the present invention preferably contains a water-soluble synthetic binder and a natural glue, and a hydrophilic mixture containing a water-soluble synthetic binder and a natural glue or a solution thereof is applied to a base paper and dried. Is obtained.

  The water-soluble synthetic binder used for the adhesive layer is water-soluble and has a strong film-forming property when heated. In addition, the adhesive layer formed on or in the base paper adheres between the printed material such as fiber or leather and the transfer paper for textile printing, and also fixes the dye (for example, steaming, humidification, or high temperature). It has the property that the adhesive strength is reduced by dry heat treatment). Therefore, the adhesive force is exhibited in a dry state after being heated and pressurized, and since it is water-soluble, the adhesive force is weakened in a humidified state (in some cases after a dry heat treatment at a high temperature).

  As the water-soluble synthetic binder constituting the adhesive layer, those exemplified below can be preferably used. Among these, as the water-soluble hot melt adhesive, an alkaline water-soluble hot melt of maleic acid alternating copolymer is used. Examples thereof include an adhesive, a water-sensitive hot melt adhesive, and a polyvinyl alcohol hot melt adhesive.

  Examples of the water-soluble synthetic binder include those synthesized mainly by petrochemistry. In addition, a binder that does not inhibit dyeing is desired. Specifically, water-soluble polyvinyl alcohol binder, water-soluble acrylic binder, water-soluble urethane binder, water-soluble urethane-modified ether binder, water-soluble polyethylene oxide binder, water-soluble polyamide binder, water-soluble phenol binder Water-soluble vinyl acetate binders, water-soluble styrene acrylic acid binders, water soluble styrene maleic acid binders, water soluble styrene acrylic maleic acid binders, water soluble polyester binders, water soluble polyvinyl acetal binders, water soluble polyesters Urethane binders, water-soluble polyether / urethane binders, water-soluble hot melt adhesives and the like can be mentioned, and one or a mixture of two or more selected from these can be preferably used. .

  Among them, water-soluble polyvinyl alcohol binders, water-soluble acrylic binders, water-soluble polyester binders, water-soluble polyether / urethane binders, water-soluble hot melt adhesives are water-soluble, temporary adhesive (adhesion by heating) However, it is preferable because of its excellent property of lowering the adhesive strength in a humidified state and little inhibition of dyeing.

  Moreover, it is preferable that the paste layer of the transfer paper of the present invention contains a natural paste. The natural sizing agent is obtained by processing the raw material of the sizing agent produced in nature as it is or physically or chemically. Natural glues show adhesive strength, but unlike water-soluble synthetic binders, the adhesive strength does not increase even when heated. On the other hand, it can be removed by steaming or dry heat treatment, and therefore it is desirable to be hydrophilic. Moreover, since the paste layer of the transfer paper for textile printing of the present invention also functions as an ink receiving layer, it is preferable that it has a high compatibility with the dye ink and a property of uniformly absorbing and holding the dye ink.

  This natural paste is classified into animal paste, plant paste, and mineral paste. Examples of the animal paste include gelatin extracted from collagen contained in animal skin and bone. Examples of plant pastes include carboxymethyl cellulose that is processed using starch and cellulose as starting materials. Examples of the mineral paste include clay collected from viscous minerals. More specifically, natural gum paste (etherified tamarind gum, etherified locust bean gum, etherified guar gum, acacia arabic gum, etc.), fiber-derived paste (carboxymethylcellulose, etherified carboxymethylcellulose, hydroxyethylcellulose, etc.), Polysaccharides (starch, glycogen, dextrin, amylose, hyaluronic acid, kudzu, konjac, potato starch, etherified starch, esterified starch, etc.), seaweed (sodium alginate, agar, etc.), mineral glue (bentonite, aluminum silicate and Derivatives thereof, silica, diatomaceous earth, clay, kaolin, acid clay, etc.) and animal glue (casein, gelatin, egg protein, etc.), and one or a mixture of two or more selected from these is preferable. Can be used.

  Among them, natural gum paste, starch derivatives such as carboxymethyl cellulose, starch derivatives such as etherified starch, seaweeds such as sodium alginate, mineral pastes such as silicon oxide, aluminum silicate, and clay, animal pastes and the like are preferable. It is a natural paste.

The blending ratio of the water-soluble synthetic binder and the natural glue is preferably in the range of water-soluble synthetic binder: natural glue = 95: 5 to 20:80 (weight ratio) in terms of solid content. When the blending ratio of the water-soluble synthetic binder is less than 20% by weight of the total weight of the water-soluble synthetic binder and the natural paste, or when the blending ratio of the water-soluble synthetic binder exceeds 95% by weight (ie, When the natural paste is less than 5% by weight), the paper-fabric adhesion is deteriorated because the paper peelability (easiness of peeling of the printed paper), dyeing properties and leveling properties after dye fixation is deteriorated. There is a tendency to cause problems such as a decrease in fineness and a decrease in fineness. An auxiliary agent can be used in the paste layer of the transfer paper for textile printing of the present invention. The auxiliary agent is added to improve various physical properties of the paste liquid, promote dyeing properties, and the like. Examples of auxiliary agents include surfactants, thickeners, moisturizers, pH adjusters, alkali agents, thickening agents, preservatives, antifungal agents, deaerators, antifoaming agents, and reducing agents. Can do.

  As for the auxiliary agent, for example, the content in the mixed paste liquid is 0.2 to 5% by weight in the case of an anionic surfactant or the like added as a surface tension reducing agent or a penetrating agent. Moisturizer (wetting agent) added to improve adhesion and dyeing power, for example, polyhydric alcohols such as polyethylene glycol, glycerin, thiodiglycol, diethylene glycol, urea, thiourea, dicyandiamide, etc., 1 to 15 weights %, In the case of acrylic acid based synthetic glue which is a thickener for increasing the viscosity of the mixed paste to facilitate application to the base paper, 0 to 3% by weight, antiseptic, antifungal agent, antifoaming agent , 0.1 to 5% by weight in the case of a degassing agent and a reduction inhibitor, 1 to 15% by weight in the case of an alkaline agent such as soda ash, sodium bicarbonate, sodium silicate, sodium acetate, etc. added when a reactive dye is used, Disperse dyeing 0.1-3% by weight or if the pH adjusting agent such as ammonium sulfate or primary phosphate soda applied when using an acid dye, favorable results when blended.

  After applying the paste solution to the base paper, it is dried to make it on the base paper (if the application is applied by application, etc. However, even if applied, part of it is absorbed in the paper) A paste layer is formed when it is made by absorption). This layer preferably contains a water-soluble synthetic binder and a natural paste, and may further contain various auxiliaries. This layer has a function as an ink receiving layer for holding the dye ink printed on the printing paper, and when the printing paper is in close contact with the cloth or the like and heated and pressed, the printing paper is used as a cloth or the like. It also functions as an adhesive layer that adheres strongly to the fibers.

Transfer Textile Printing In the transfer textile printing of the present invention, dye ink is printed on the transfer paper described above to obtain a printed paper. A dye ink is printed on the paste layer of the transfer paper for textile printing, based on the design of textile printing, and then dried to produce a textile paper. When a paste layer is provided on one surface side of the printing paper, dye ink is printed on the surface side (printing surface).

  Specific examples of the dye ink used herein include inks that use reactive dyes, acid dyes, metal complex dyes, direct dyes, disperse dyes, cationic dyes, and the like as dyes. As the dye ink, these dyes can be used by dissolving or dispersing in a dye dissolving agent such as water.

  In the present invention, as a dye ink used for ink jet printing, a dye dissolved or dispersed with a dye dissolving agent or a dispersing agent can be used. Examples of the dye solubilizer include water, thiodiglycol, polyethylene glycol, glycerin, ethylene glycol, and ε-caprolactam. In addition, drying ink, surface tension adjusting agent, viscosity adjusting agent, pH adjusting agent, preservative, antifungal agent, sequestering agent, antifoaming agent, degassing agent are added to dye ink as necessary. Is done. A dye ink is used in which these components are mixed and trace amounts of impurities are filtered and degassed with a membrane filter of 1 micron or less.

  The type of dye is selected from reactive dyes, direct dyes, acid dyes, metal complex salt dyes, disperse dyes, cationic dyes, etc., depending on the type of fibers constituting the fabric. In this case, it is desirable that the average particle diameter of the dye is atomized to about 0.1 μm using zirconium beads of 0.1 to 0.3 mm.

  A dye ink is printed on the printed paper thus obtained, and dried to produce a printed paper. As the printing method, inkjet printing is preferable, but other methods such as gravure printing and screen printing can also be used, and printing can be performed by the same methods and conditions as in known transfer textile printing. As a method of printing the dye ink on the transfer paper, an ink jet printing method is preferable. In the present invention, a water-based dye ink is preferable. Here, the water-based dye ink is an ink in which a dye is dissolved or dispersed with water or a solvent that dissolves in water as a main component.

  In the transfer textile printing of the present invention, the transfer paper produced as described above is brought into close contact with a printing material such as a fiber material (cellulosic fiber material, protein fiber material, synthetic fiber material, etc.) or leather material. In the adhering step, after the printed paper is brought into close contact with the substrate by heating / pressurizing or the like, a dye fixing process is performed in the close contact state. The heating and pressurizing conditions can be the same as those for ordinary transfer printing. For example, the printing paper can be brought into close contact with the substrate by using a drum or the like. Is more preferable. By this heating and pressurization, the transfer paper is bonded to the fiber material or leather material.

  In the transfer textile printing of the present invention, the dye fixing process is performed with the textile paper in close contact with the printing material. Examples of the fixing treatment of the dye include heating by steam that is usually performed in printing using a reactive dye or the like, and a method of heating in a state where humidification or moisture is applied. In the case of printing polyester fibers or synthetic fibers, a method of drying and heating can also be employed. The transfer paper can be peeled off by heating with this steam or heating in a state where humidification or moisture is applied. In the case of printing of polyester fiber or synthetic fiber, the transfer paper may be peeled by a method of drying and heating, but can be more easily peeled off by applying moisture after drying and heating (fixing).

  As conditions for fixing the dye by steaming, etc. performed by bringing the printed paper into close contact with the fabric, etc., the same conditions as the fixing conditions by the steaming of the dye employed in the normal direct printing method can be used as they are. For example, steaming can be performed from the non-printing surface side of the printed paper by steam at 100 to 220 ° C. For example, when the dye is a reactive dye, steaming is performed by a one-phase steam fixing method at 100 to 105 ° C. for 5 to 20 minutes, and when the ink receiving layer does not contain an alkali, a two-phase method (for example, a cold fix method) The same conditions as the steaming by) can be applied. When the dye is an acid dye, a steaming treatment at 100 to 105 ° C. for 10 to 30 minutes can be performed. When peeling the paper from the dough, it is easy to peel off the paper in a state where moisture and moisture after steaming are applied. When the dye is a disperse dye, HT steaming or dry heat treatment is performed at 160 to 220 ° C. for 1 to 15 minutes. In some cases, the paper can be peeled off by the dry heat treatment, but the paper can be easily peeled off by applying a small amount of moisture or moisture after the dry heat treatment.

  The dye fixing process may be performed after heating and pressurization, or may be performed simultaneously with the heating and pressurization. The dye in the dye ink printed on the dye paper is absorbed and dyed onto the fiber material and leather material by heating / pressurizing and dye fixing treatment. Further, the dye fixing process fixes the dye dyed on the fiber material or leather material, and decreases the adhesive force between the printed paper and the fiber material or leather material.

  In the transfer textile printing of the present invention, the textile paper may be peeled off from the substrate after the fixing step. The adhesive layer formed on or in the base paper as described above functions as an adhesive layer by the heating and pressurization described above, but on the other hand, the transfer paper can be easily peeled off from the fabric or the like. Therefore, the adhesive strength is reduced by the dye fixing process by steaming or the like. That is, it is desirable that the layer of the mixed paste has a property that the adhesive strength is easily reduced by applying moisture in a dye fixing process by steaming or the like or a process of peeling the printed paper.

  After the dyeing and fixing of the dye to the fiber material or leather material is performed by a treatment process such as steaming and the transfer paper is peeled off, a washing process such as water washing and soaping is usually performed. It is desirable that the mixed paste has a property that can be easily washed and removed in this washing step.

  After the dye fixing process by steaming etc., it is treated by washing (water washing, soaping, water washing in the case of disperse dyes, water washing, reduction washing, water washing) under the same conditions as in the conventional transfer printing method. A fine, dense and dense printed product can be obtained. In the case of disperse dyes, even if washing is omitted, it is possible to obtain a fine, dense print with a good texture.

  After the printed paper is peeled and removed, the fabric is washed (washing and soaping) to remove the water-soluble synthetic binder and the natural paste adhering to the fabric with a small amount of water, and the texture of the fiber. Get a good and delicate printed fabric or printed product. In the case of synthetic fibers such as polyester, the washing step can be omitted.

  In the case of transfer printing using a release paper, since the ink receiving layer and the dye ink are transferred to the entire fabric, there is a problem that the waste water contamination due to the unfixed excess dye and the glue is large. However, in the method of the present invention, the non-fixed dye (surplus dye) and most of the mixed paste are adhered to the printed paper peeled off from the fabric or the like, while the surplus dye is applied to the fabric or the like. Since the mixed paste is hardly adhered, the drainage load at the time of washing the fabric is greatly reduced as compared with the known method. Therefore, in this respect, the present invention can be said to be an ecological processing method.

Printed material Although the printed material of the present invention is not particularly limited, it is suitably applied to textile printing such as fabrics and leather materials made of fiber materials. The fiber material to which the present invention is applied includes, for example, both natural fiber materials and synthetic fiber materials. Examples of natural fiber materials include cellulosic fiber materials such as cotton, hemp, lyocell, rayon and acetate, and protein fiber materials such as silk, wool and animal hair. Examples of synthetic fiber materials include fibers called polyamide fibers (nylon), vinylon, polyester, polyacryl, and the like.

  Examples of the leather material to which the present invention is applied include animal leather, for example, natural leather such as cattle, buffalo, pigs, horses, sheep, goats, kangaroos, deer, sharks, sharks, sharks, camels, etc., known leathers, and tanning. The thing dried through the process can be mentioned.

The present invention is applied to woven fabrics, knitted fabrics, non-woven fabrics, leathers and the like of these fiber materials alone, blended fabrics, blended fibers or woven fabrics. Further, composite fiber may be used.
If necessary, a printed material such as a cloth may be pretreated with a chemical agent that affects dyeing or a chemical agent that is effective in promoting dyeing. For example, when printing reactive dyes, 3-15% by weight of sodium carbonate, potassium carbonate, sodium bicarbonate, sodium silicate, sodium acetate, sodium sesquicarbonate, sodium trichloroacetate, etc. as an alkali agent on a printed material such as fabric, at the time of transfer 3 to 25% by weight of urea for the purpose of preventing yellowing, improving transferability, and improving dyeing, and a mixed liquid containing 0.05 to 1% by weight of a hydrophilic thickening substance such as sodium alginate as a migration inhibitor. Immersion and pad drying may be performed. In the case of printing an acid dye, an acid ammonium salt such as ammonium sulfate or ammonium tartrate is used in an amount of 0.5 to 5% by weight as a dyeing accelerator, and an acid-resistant natural gum 0.05 to 0.00% as a migration inhibitor. You may immerse the liquid mixture containing 5 weight%, and may dry a pad. However, in the present invention, such pretreatment is usually unnecessary.

EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not restrict | limited to these Examples. In the examples,% means% by weight.
<Manufacture of transfer paper for textile printing and transfer textile printing>
[Example 1]
700 g of Pluscoat RZ-142 (water-soluble polyester resin-based binder 25% aqueous solution: manufactured by Kyoyo Chemical Industry Co., Ltd.), 10 g of sorbitol C-5 (etherified starch: manufactured by AVEBE), FD Algin BL (sodium alginate low viscosity product powder) : 198 g, Furukawa Chemical Co., Ltd.) 198 g, Evatex D-23 (aluminum silicate derivative: Kyoei Science Co., Ltd.) 190 g, Microid ML389 (silicon oxide: Toyo Chemical Co., Ltd.) 5 g, Dicyandiamide 70 g, Soda ash 85 g, Water 1200 g Were mixed well with a stirrer, and the solid content concentration was adjusted to 25% by weight to prepare a mixed paste.

The mixed paste was applied to a high-quality paper having a basis weight of 70 g / m ^{2 as} a base paper at an application speed of 70 m / min by an air knife method and dried. The amount of the mixed glue applied to this printing paper was 20 g / m ² . In this way, a transfer paper for textile printing was obtained. The air resistance of the transfer paper for textile printing was measured according to JIS P 8117 and found to be 35000 seconds.

  Next, a reactive dye ink solution (CI Reactive Blue 19 15%, polyethylene glycol 5%, glycerin 5%, ε-caprolactam 5%, ion-exchanged water 70%) is applied onto the above-mentioned printing printing transfer paper (HYPERCO: It was printed by a Muto Kogyo Co., Ltd .: on-demand type piezo inkjet printer) and dried to obtain a printed paper.

  The printed paper and the cotton lawn cloth were brought into close contact with each other, and heated and pressurized (140 ° C., 0.5 MPa, 2.5 m / min, roller type) to attach the printed paper to the cotton lawn cloth. Next, the cotton lawn cloth was subjected to a steaming process at 100 ° C. for 10 minutes with the printed paper attached, and the ink was transferred and printed. Thereafter, the printed paper was peeled off, but could be easily peeled off.

After removing the printed paper, the printed fabric was washed with water, soaped, washed with water and dried by a conventional method to obtain a printed fabric.
[Example 2]
A transfer paper for textile printing was obtained in the same manner as in Example 1 except that the solid content concentration of the mixed paste was 23% by weight and the mixed paste was applied by the curtain method instead of the air knife method. When the air resistance of the transfer paper for textile printing was measured according to JIS P 8117, it was 40000 seconds. Using the transfer paper thus obtained, textile printing was performed in the same manner as in Example 1 to obtain a textile fabric.

[Comparative Example 1]
Transfer paper for textile printing in the same manner as in Example 1, except that the solid content concentration of the mixed paste is 29% by weight and the mixed paste is applied by a comma method instead of an air knife method at a coating speed of 1 m / min. Got. When the air resistance of the transfer paper for textile printing was measured according to JIS P 8117, it was 40000 seconds. Using the transfer paper thus obtained, textile printing was performed in the same manner as in Example 1 to obtain a textile fabric.

[Comparative Example 2]
Transfer for textile printing in the same manner as in Example 1 except that A2 coated paper having a basis weight of 70 g / m ² (coating amount of coating layer: 14 g / m ^{2 on} both sides) was used as the base paper instead of fine paper. I got paper. The air resistance of the transfer paper for textile printing was measured according to JIS P 8117 and found to be 99000 seconds. Using the transfer paper thus obtained, textile printing was performed in the same manner as in Example 1 to obtain a textile fabric.

<Evaluation of textiles printed by printing>
The printed fabrics obtained as described above were visually evaluated for dyeing fineness and thickness. The fineness and richness of the printed image were evaluated in three stages according to the following criteria.
(Image definition)
3: There is no unevenness and it is dye | stained beautifully 2: It is dye | stained to the extent which does not have a problem 1: There is unevenness in light and shade, and it is not dye | staining neatly (the thickness of an image)
3: The dyeing density is sufficiently dark and finely dyed 2: The dyeing is performed to an extent that there is no problem 1: The dyeing density is thin and the dyeing is not finely dyed <Evaluation result>
Table 1 shows the evaluation results. As is apparent from Table 1, according to the present invention, an image with a delicate design could be dyed finely and densely on a fabric that is a printed material. Further, the fabric subjected to transfer textile printing according to the present invention had a soft texture.

On the other hand, in the comparative example using the transfer paper having a large air resistance, the fineness and the density of the image when the delicate design is dyed are inferior to those in the example.
Further, the textile printing paper of the present invention had good peelability after textile printing and could be easily peeled off.

Claims (8)

A transfer paper used for transfer textile printing in which the dye fixing process is performed with the textile paper in close contact with the substrate,
The above transfer paper, comprising a base paper and a paste layer provided on the base paper by a non-contact coating method, and having an air resistance of 80000 seconds or less.   The transfer paper according to claim 1, wherein the non-contact coating method is an air knife method or a curtain method.   The transfer paper according to claim 1 or 2, wherein the glue layer comprises a water-soluble synthetic binder and a natural glue.   A printed paper obtained by printing a dye ink on the adhesive layer of the transfer paper according to any one of claims 1 to 3. A step of printing a dyed ink on the transfer paper according to claim 1 to obtain a printed paper,
A step of closely attaching the printed paper to a substrate;
A step of fixing a dye to a printed paper in close contact with the substrate;
A method for performing textile printing on a printing material, comprising:   The method according to claim 5, further comprising a step of peeling and removing the printed paper from the printed material after the fixing step.   The method according to claim 5 or 6, wherein the fixing treatment is performed by steaming.   The method according to claim 5, wherein the dye ink is printed on a transfer paper for textile printing by ink jet printing.