JP2017110318A - Printing apparatus and control method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printing apparatus capable of performing an appropriate pretreatment corresponding to the type of fabric and the type of ink composition, and a control method thereof.SOLUTION: A printing apparatus comprises an ink jet head for performing a processing step of discharging a process liquid to fabric for coating application, and an ink jet head for performing a recording step of discharging a colorant-containing ink to the fabric processed through the processing step for coating application. The process liquid comprises at least two different types of liquid having different compositions.SELECTED DRAWING: None

Description

  The present invention relates to a textile printing apparatus and a control method thereof.

  The ink jet recording method is capable of recording high-definition images with a relatively simple device, and has been rapidly developed in various fields. Among them, various studies have been made on the printing method and the like. For example, Patent Document 1 provides an ink-jet printing pretreatment liquid capable of expressing a high-concentration hue and capable of obtaining a highly sharp dyed product with suppressed ink bleeding and an ink-jet printing method using the same. As an object, an inkjet printing method for printing on a fabric by an inkjet method, wherein the fabric contains at least a synthetic anionic polymer, a cationic polymer and a nonionic surfactant before applying ink to the fabric. An ink jet textile printing method characterized by applying a liquid is disclosed.

JP 2006-152454 A

  However, since the water absorption and the roughness of the mesh differ depending on the type of fabric (manufacturer, brand, etc.), the treatment liquid composition (flocculating agent, concentration of resin solids, etc.) suitable for it is generally different. Thus, there is a problem that it is difficult to perform an appropriate pretreatment only with the composition of the treatment liquid. Similarly, the ink composition to be used has a different suitable treatment liquid composition, and it is difficult to perform an appropriate pretreatment only with the composition of the treatment liquid. In particular, in textile printing ink compositions using pigments, if the coating amount of the processing liquid (the coating amount of the processing liquid component) is too large, overflow or yellowing occurs, and if it is small, printing unevenness tends to occur. Special emphasis is placed on the appropriateness of processing. On the other hand, when trying to change the composition of the treatment liquid according to the fabric, the treatment liquid already used for using another treatment liquid is discharged from the ink tank, the ink flow path, and the head, There is a need for replacement, which complicates the operation, and there is a risk of frequent discharge failures associated with replacement.

  The present invention has been made to solve at least a part of the above-described problems, and provides a printing apparatus that can perform an appropriate pretreatment according to the type of fabric, the type of ink composition, and the like. An object is to provide a control method thereof.

  The present inventors diligently studied to solve the above problems. As a result, the inventors have found that the above-described problems can be solved by providing two or more treatment liquids having different compositions and enabling them to be appropriately discharged, thereby completing the present invention.

  The textile printing apparatus according to the present invention includes an inkjet head that performs a processing step of discharging and applying a treatment liquid onto a fabric, and an inkjet head that performs a recording step of discharging and applying ink containing a coloring material to the fabric subjected to the processing step. And two or more treatment liquids having different compositions from each other as the treatment liquid.

  By using such a textile printing apparatus, when two or more treatment liquids are applied to a fabric using an inkjet head, an optimum pretreatment is performed according to the type and characteristics of the fabric and the printing density. In addition, it is possible to adjust the application ratio, total, and defects of the treatment liquid.

  Further, the control method of the printing apparatus of the present invention is a control method of the above-described printing apparatus, wherein a processing liquid used for the processing step is selected from two or more of the processing liquids, and the selected processing liquid is selected. And determining a coating amount per unit area for the fabric.

  Preferably, in the determination step, the selection of the treatment liquid and the application are performed according to at least one of the fabric type, the ink type used in the recording step, and the ink recording conditions in the recording step. Make a quantity determination.

  Preferably, in the determination step, two or more treatment liquids used in the treatment step are selected.

  Preferably, in the determination step, two or more treatment liquids used in the treatment step are selected, and an application amount per unit area of the selected two or more treatment liquids on the fabric is determined.

  Preferably, the two or more treatment liquids each contain at least one of resin fine particles and an aggregating agent.

  Preferably, two or more of the treatment liquids include at least a treatment liquid A containing a solid content amount MA resin fine particles and a solid content amount NA flocculant, a solid content amount MB resin fine particles, and a solid content amount NB. A treatment liquid B containing a flocculant, and the treatment liquid A and the treatment liquid B have a relationship I in which MA / MB and NA / NB are different from each other.

  Preferably, the two or more treatment liquids include at least a treatment liquid A containing resin fine particles having a solid content of MA and a treatment liquid B containing resin fine particles having a solid content of MB, and the treatment liquid A And the said process liquid B has the relationship II of 0.2 mass% <absolute value (MA-MB) <20 mass%.

  Preferably, the two or more treatment liquids include at least a treatment liquid A containing a flocculant having a solid content NA and a treatment liquid B containing a flocculant having a solid content NB, and the treatment liquid A And the said process liquid B has the relationship III of 0.2 mass% <absolute value (NA-NB) <20 mass%.

  Preferably, when the type of the ink used in the recording step is white ink, in the determination step, the processing liquid used in the processing step is selected from two or more of the processing liquids, and the selected The coating amount of the treatment liquid per unit area on the fabric is determined.

  Preferably, in the determination step, the treatment liquid is selected and the coating amount is determined according to the mass per unit area of the fabric.

  Preferably, in the determination step, the processing liquid is selected and the coating amount is determined in accordance with the coating amount per unit area of the ink in the recording step.

  Preferably, in the recording step, the ink containing the color material is started to be ejected onto the fabric having a surface temperature of 35 ° C. or less within 5 minutes after the completion of the processing step.

It is a flowchart figure which shows the process in the textile printing apparatus of this embodiment. It is a block diagram which shows an example of a structure of the recording device which can be used for this embodiment.

  Hereinafter, an embodiment of the present invention (hereinafter referred to as “the present embodiment”) will be described in detail with reference to the drawings as necessary. However, the present invention is not limited to this, and the gist thereof is described below. Various modifications are possible without departing from the scope. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, positional relationships such as up, down, left and right are based on the positional relationships shown in the drawings unless otherwise specified. Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

[Printing equipment]
The textile printing apparatus according to the present embodiment includes an inkjet head that performs a processing step of discharging and applying a treatment liquid onto a fabric, and an inkjet that performs a recording step of discharging and applying ink containing a coloring material to the fabric on which the processing step has been performed. And two or more treatment liquids having different compositions as the treatment liquid.

  By using such a textile printing apparatus, when two or more treatment liquids are applied to a fabric using an inkjet head, an optimum pretreatment is performed according to the type and characteristics of the fabric and the printing density. In addition, it is possible to adjust the application ratio, total, and defects of the treatment liquid.

  In particular, the printing apparatus of this embodiment is preferably a recording apparatus for pigment printing. In pigment printing, it is desirable to use a treatment liquid from the viewpoint of reacting with the ink composition and fixing the coloring material at an early stage to prevent the ink from penetrating into the fabric and improving the color development property. The optimum content of the resin and the flocculant varies depending on the type of fabric, the type of ink, and the coating amount. Moreover, it is necessary to apply not only the amount of the flocculant and resin contained in the treatment liquid to the cloth, but also a treatment liquid containing these at a predetermined concentration, and the application amount of one treatment liquid. There is a problem that a preferable image quality cannot always be obtained simply by changing. Therefore, by preparing two or more kinds of treatment liquids and selecting and using them according to the type of fabric, or using them together, or adjusting the coating amount, it is possible to meet various conditions such as fabrics.

  In addition, as a problem inherent to textile printing, in textile printing, overflow and yellowing may occur with an increase in the amount of treatment liquid applied, so there is a certain preferred amount of treatment liquid application. In addition, there is a preferable coating amount for each component of the flocculant and resin that can be contained in the treatment liquid. Therefore, it is desirable that the printing apparatus used under various usage conditions is configured so that the preferred coating amount of the resin and the flocculant can always be made compatible depending on the printing conditions. It is difficult to make them compatible with one type of processing liquid. More specifically, the uneven printing can be improved by applying a small amount of a treatment liquid having a high concentration of components (flocculating agent or resin) to adjust the coating amount of the treatment liquid components (flocculating agent or resin). In order to uniformly apply the components of the treatment liquid (flocculating agent and resin) to the fabric and uniformly agglomerate the ink composition, the treatment liquid is applied at a certain amount or more on the fabric. It is also desired to apply it uniformly. On the other hand, when a large amount of a treatment liquid having a low concentration of components (flocculating agent or resin) is applied, there is a problem that the application time becomes longer and the ink tends to overflow. Therefore, it is desired to apply a treatment liquid having an appropriate component concentration in an appropriate application amount, and it is difficult to always satisfy a preferable application amount that varies depending on the printing conditions with one type of treatment liquid. Such a problem is a problem inherent to textile printing in which the amount of ink attached is generally large and the fabric is exposed to a relatively high temperature for fixing the ink.

  The textile printing apparatus is not particularly limited as long as it includes two or more treatment liquids having different compositions from each other, but includes, for example, two or more treatment liquids having different compositions filled in separate ink tanks, A configuration in which each ink tank is connected to a different inkjet head via a different ink flow path; in this configuration, the ink flow path or the inkjet head is common, and two different treatment liquids have the same ink flow. The structure etc. which distribute | circulate a path | route or an inkjet head are mentioned. Among these, a configuration in which one ink flow path and one inkjet head are provided for each treatment liquid having a different composition is preferable. Thereby, as compared with a configuration in which two different treatment liquids circulate through the same ink flow path or inkjet head, a treatment liquid replacement operation or the like is not necessary, which is preferable from the viewpoint of ease of operation.

[Control method for textile printing equipment]
The control method of the printing apparatus of the present embodiment is a control method of the above-described printing apparatus, wherein a processing liquid used for the processing step is selected from two or more of the processing liquids, and the selected processing liquid is A determination step of determining a coating amount per unit area for the fabric;

  There are various types of fabrics to be printed, such as materials, moisture absorbability, mesh roughness (weave), etc., and the composition of an appropriate treatment liquid varies accordingly. In addition, there are various ink compositions. For example, a relatively large amount or a highly effective treatment liquid is preferable for the white ink composition used for imparting concealability. Is different. On the other hand, the textile printing apparatus is desired to be compatible with a wide variety of fabrics and ink compositions.

  Therefore, in the present embodiment, depending on the type of fabric and the type of ink composition used in the recording process, the recording conditions (printing density, etc.) of the ink in the recording process, etc., from two or more types of treatment liquids having different compositions, By determining an appropriate treatment liquid and coating amount and performing pretreatment, it is possible to provide a printing apparatus that can easily cope with printing of a wide variety of fabrics and ink compositions.

[Judgment process]
The determination step is a step of selecting a treatment liquid to be used for the treatment process from two or more treatment liquids and determining an application amount of the selected treatment liquid per unit area on the fabric. Here, “selecting a treatment liquid to be used in the treatment process” means selecting one or more treatment liquids to be used in the treatment process from two or more treatment liquids. Further, “determining the coating amount per unit area for the fabric” refers to determining the coating amount of the selected processing liquid. When there are two or more selected processing liquids, each processing liquid In contrast, it means that the coating amount is determined individually. This makes it possible to select an appropriate treatment liquid according to the type of fabric and ink composition or the respective recording conditions (printing density), etc., and the usage amount and use when two types are used. The ratio can be selected. As a result, it is possible to perform processing suitable for the type of fabric and ink composition or the respective recording conditions (printing density).

Here, the type of fabric is not particularly limited, and examples thereof include natural fibers or synthetic fibers such as silk, cotton, wool, nylon, polyester, and rayon. Furthermore, the fabrics can be classified by mass per unit area (ounces / square yard), water absorption, and the like. The selection of the treatment liquid according to the type of fabric is not particularly limited. For example, for a fabric having a relatively low water absorption, a treatment liquid having a relatively high component content is selected and the water absorption is selected. For a relatively high fabric, it is possible to select a treatment liquid having a relatively small component content. In addition, for a fabric having a large mass per unit area, a treatment liquid having a relatively small component content is selected, and for a fabric having a large mass per unit area, a component content is relatively large. It is mentioned to select a treatment liquid. In addition, the determination of the coating amount according to the type of fabric is not particularly limited. For example, for a fabric having a relatively low water absorption, the coating amount is reduced and for a fabric having a relatively high water absorption. Increasing the coating amount and increasing the coating amount for a fabric having a large mass per unit area, and decreasing the coating amount for a fabric having a large mass per unit area. By doing so, for example, a small amount of a thick pretreatment liquid is applied to a dough having a low water absorption and a coarse mesh, and a thin pretreatment liquid is applied to a cloth having a high water absorption and a dense mesh. Can be applied in large quantities. “A fabric with relatively low or high water absorption” is determined by comparing the amount of water absorbed (mL / m ² ) from the start of contact to 30 msec in the Bristow method.

  FIG. 1 is a flowchart showing processing in the textile printing apparatus of this embodiment. First, the user inputs information such as the type and thickness of the recording medium to the recording device via a printer driver or printing software incorporated in the computer. At this time, the user may select the recording medium information, the ink to be used, and the recording conditions for the recording apparatus from the operation unit provided in the recording apparatus. You may have a detection means which detects a kind and thickness. And based on the information of the recording medium, for example, in the selection table or the selection program stored in advance in the printer driver and printing software or recording device built in the computer, select the processing liquid to be used in the processing step, The amount of application is determined. Next, the treatment liquid is discharged and applied to the fabric, and finally, ink is discharged and applied to the fabric. Next, FIG. 2 is a block diagram showing an example of the configuration of a recording apparatus that can be used in the present embodiment. A printer driver is installed in the computer 130, and print data corresponding to the image is output to the printer 1 in order to cause the printer 1 to record an image. The printer 1 includes an ink supply unit 10, a transport unit 20, a head unit 30, a maintenance unit 50, a detector group 110, a memory 123, an interface 121, and a controller 120. The controller 120 includes a CPU 122 and a unit control circuit 124. The printer 1 that has received the print data from the computer 130, which is an external device, controls each unit by the controller 120, and records an image on a recording medium according to the print data. The situation in the printer 1 is monitored by the detector group 110, and the detector group 110 outputs the detection result to the controller 120. The controller 120 controls each unit based on the detection result output from the detector group 110 and stores print data input via the interface 121 in the memory 123. The memory 123 also stores control information for controlling each unit. In such an apparatus configuration, information such as the type and thickness of the recording medium may be input by a user using a printer driver or printing software incorporated in the computer 130, or the user may operate an operation unit (not shown) of the printer 1. ) May select the recording medium information, ink to be used, and recording conditions from the printer 1, or the recording apparatus itself may be detected by the detector group 110. Then, the controller 120 selects a treatment liquid to be used for the treatment process in accordance with a selection table or a selection program stored in advance based on the recording medium information, and determines the coating amount. The selection table and the selection program may be recorded in a printer driver or printing software incorporated in the computer. In this case, the printer driver or printing software incorporated in the computer is based on the recording medium information. The processing liquid used for a processing process can be selected and the coating amount can be determined. Next, the treatment liquid is ejected and applied to the fabric, and finally ink is ejected and applied to the fabric based on the print data.

  In addition, the mass per unit area (ounce / square yard) of the fabric is not particularly limited, but is preferably 1 to 10 oz, more preferably 2 to 6 oz, and further preferably 2 to 5 oz. When the mass per unit area (ounce / square yard) of the fabric is within the above range, the uniformity, concealment, overflow, and coating film adhesion of the resulting printed product tend to be improved more comprehensively.

  Further, the type of ink composition is not particularly limited, and examples thereof include conventionally known ink compositions, particularly pigment printing ink compositions. The selection of the treatment liquid according to the type of the ink composition is not particularly limited. For example, when an ink composition having a relatively low color material content is used, a treatment with a relatively low content of components is used. When a liquid is selected and an ink composition having a relatively high color material content is used, a treatment liquid having a relatively high component content may be selected. The determination of the coating amount according to the type of the ink composition is not particularly limited. For example, in the case of using an ink composition having a relatively low coloring material content, the coating amount is reduced to reduce the coloring material content. In the case of using a relatively high ink composition, it is possible to increase the coating amount. The “ink composition having a relatively low color material content” refers to an ink composition having a relatively low content when there are two selectable ink compositions. “High ink composition” means an ink composition having a relatively high content. The “ink composition having a relatively high colorant content” preferably has a pigment content of 7% by mass or more based on the total amount of ink. Further, “the ink composition having a relatively low color material content” preferably has a pigment content of 6% by mass or less, more preferably 4% by mass or less, based on the total amount of ink.

  For example, when the type of ink used in the recording process is white ink, the processing liquid used in the processing process is selected from two or more processing liquids in the determination process, and the fabric of the selected processing liquid is selected. It is mentioned that the coating amount per unit area is determined. More specifically, when white ink is used, a treatment liquid having a large amount of an aggregating agent or resin fine particles may be selected, or the coating amount may be improved.

  Furthermore, the recording conditions are not particularly limited, and examples include recording conditions in which the coating amount per unit area of the ink composition is relatively low; recording conditions in which the coating amount per unit area of the ink composition is relatively high. . The selection of the treatment liquid according to the recording conditions is not particularly limited. For example, a treatment liquid having a relatively small component content is selected for the recording conditions where the coating amount of the ink composition is relatively low. On the other hand, for recording conditions in which the coating amount of the ink composition is relatively high, a treatment liquid having a relatively large component content may be selected. The determination of the coating amount according to the recording conditions is not particularly limited. For example, for recording conditions where the coating amount of the ink composition is relatively low, the coating amount is reduced and the coating amount of the ink composition is reduced. However, for relatively high recording conditions, increasing the coating amount can be mentioned.

  In the determination step, it is preferable to select two or more treatment liquids to be used in the treatment step. Selection of two or more kinds of treatment liquids can be achieved by changing the application amount ratio of the respective treatment liquids, so that the application amount of each component contained in the mixed treatment liquid finally applied onto the fabric is wider. It can be performed from the viewpoint of achieving. For example, if a treatment liquid with a small amount of flocculant and a treatment liquid with a large amount are used in combination, the amount of flocculant contained in the mixed treatment liquid that is finally applied onto the fabric is changed by changing the coating amount ratio of the treatment liquid. Can be controlled in a wider range. The same can be said for the resin fine particles. Thereby, it becomes possible to perform a suitable process more flexibly compared with the case where a single process liquid is used.

  In the determination step, when two or more treatment liquids to be used in the treatment step are selected, the application amount per unit area of the selected two or more treatment liquids on the fabric may be individually determined. preferable. Thereby, it becomes possible to perform a suitable process more flexibly compared with the case where a single process liquid is used. In addition, when selecting two or more treatment liquids to be used in the treatment process, the application amounts per unit area of the selected two or more treatment liquids on the fabric may be determined to be different from each other. Good.

[Treatment solution]
The composition of the treatment liquid is not particularly limited, and those conventionally used as pretreatment liquids can be used. More specifically, the treatment liquid preferably contains water and at least one of resin fine particles and a flocculant, and if necessary, contains other components. Furthermore, it is preferable that each of the two or more treatment liquids contains at least one of resin fine particles and an aggregating agent. By using such a treatment liquid, the treatment process can be performed under more appropriate conditions.

  For example, the two or more treatment liquids are at least a treatment liquid A containing a solid content MA resin fine particle and a solid content NA flocculant, a solid content MB resin fine particle, and a solid content NB flocculant. It is preferable that the treatment liquid A and the treatment liquid B have a relationship I in which MA / MB and NA / NB are different from each other. By using such a treatment liquid set, it becomes possible to perform the treatment process under more appropriate conditions, and the uniformity, concealment, overflow and coating film adhesion of the resulting printed product tend to be improved overall. It is in.

  The two or more treatment liquids include at least a treatment liquid A containing resin fine particles having a solid content amount MA and a treatment liquid B containing resin fine particles having a solid content amount MB. B preferably has a relationship II of 0.2% by mass <absolute value (MA-MB) <20% by mass. The relation II is preferably 0.2% by mass <absolute value (MA-MB) <20% by mass, more preferably 0.5% by mass <absolute value (MA-MB) <15% by mass, Preferably, 2.5 mass% <absolute value (MA-MB) <10 mass%. By having such a configuration, it becomes possible to perform the processing step under more appropriate conditions, and the uniformity, concealment, overflow, and coating film adhesion of the obtained printed product tend to be improved more comprehensively. . In this case, the solid content MA of the resin fine particles of the treatment liquid A is preferably 0.1 to 1.5% by mass, more preferably 0.15 to 1.0% with respect to the total amount of the treatment liquid A. It is mass%, More preferably, it is 0.25-0.75 mass%. The solid content MB of the resin fine particles of the treatment liquid B is preferably 2 to 10% by mass, more preferably 2.5 to 7.5% by mass, and still more preferably based on the total amount of the treatment liquid B. Is 3-5% by mass.

  Further, the two or more treatment liquids include at least a treatment liquid A containing a flocculant having a solid content NA and a treatment liquid B containing a flocculant having a solid content NB. B preferably has a relation III of 0.2 mass% <absolute value (NA-NB) <20 mass%. The relation III is preferably 0.2% by mass <absolute value (NA-NB) <20% by mass, more preferably 0.5% by mass <absolute value (NA-NB) <15% by mass, Preferably, 2.5 mass% <absolute value (NA-NB) <10 mass%. By having such a configuration, it becomes possible to perform the processing step under more appropriate conditions, and the uniformity, concealment, overflow, and coating film adhesion of the obtained printed product tend to be improved more comprehensively. . In this case, the solid content NA of the flocculant of the treatment liquid A is preferably 2.5 to 14% by mass, more preferably 5 to 13% by mass with respect to the total amount of the treatment liquid A. Preferably it is 7.5-12 mass%. Further, the solid content NB of the flocculant of the treatment liquid B is preferably 12 to 18% by mass, more preferably 12.5 to 17% by mass, and further preferably 13 with respect to the total amount of the treatment liquid B. ~ 16% by weight.

(Flocculant)
Although it does not specifically limit as an aggregating agent, For example, a polyvalent metal compound, an organic acid, a cationic resin, a cationic surfactant, etc. are mentioned. A flocculant is used individually by 1 type or in combination of 2 or more types.

  Examples of the polyvalent metal compound include halides, nitrates and sulfates of polyvalent metals. The polyvalent metal is not particularly limited, and examples thereof include magnesium, aluminum, calcium, titanium, manganese, iron, nickel, copper, and zinc. Among these, aluminum, calcium, and magnesium are preferable in terms of aggregating ability. Is preferred.

  The organic acid is not particularly limited, and examples thereof include glycolic acid, succinic acid, citric acid, acetic acid, and lactic acid.

  The cationic resin is not particularly limited, but examples thereof include polyallylamine, poly (vinylpyridine) salt, polyalkylaminoethyl acrylate, polyalkylaminoethyl methacrylate, poly (vinylimidazole), poly (glucosamine), polyethyleneimine, Examples thereof include polybiguanide, polyhexmethylene guanide, polyguanide and the like.

  The cationic surfactant is not particularly limited, and examples thereof include primary, secondary and tertiary amine salt type compounds, alkylamine salts, dialkylamine salts, aliphatic amine salts, benzalkonium salts, Examples include quaternary ammonium salts, quaternary alkyl ammonium salts, alkyl pyridinium salts, imidazolinium salts, sulfonium salts, phosphonium salts, onium salts and the like.

  The flocculant may be appropriately set according to the user's request and the like. For example, when a polyvalent metal compound having an excellent pigment aggregating ability is used, a printed matter having particularly excellent color developability can be obtained. On the other hand, when a cationic resin and a cationic surfactant are used, it is possible to obtain a printed product that not only has excellent color developability and abrasion resistance, but also does not impair the original texture of the fabric.

(Resin fine particles)
The resin fine particles are not particularly limited, and examples thereof include urethane resin fine particles and acrylic resin fine particles. The resin fine particles are used alone or in combination of two or more.

  The urethane resin fine particle is not particularly limited as long as it is a resin fine particle having a urethane bond in the molecule, a polyether type urethane resin having an ether bond in the main chain, a polyester type urethane resin having an ester bond in the main chain, and a main resin. A polycarbonate type urethane resin containing a carbonate bond in the chain may be mentioned. Although it does not specifically limit as a commercial item of the said urethane-resin microparticles | fine-particles, For example, Sancure 2710 (The brand name made from The Lubrizol Corporation), Permarin UA-150 (Sanyo Chemical Industries, Ltd.) .) Trade name), Superflex 460, 470, 610, 700 (above, trade name made by Dai-ichi Kogyo Seiyaku Co., Ltd.), NeoRez R-9660, R-9737, R-940 (above, trade name manufactured by Kusumoto Chemicals, Ltd.), Adekabon titer HUX-380, 290K (above, trade name made by Adeka), Takerak (registered trademark) W-605 , W-635, WS-6021 (Mitsui Chemicals, Inc. trade name), polyether (TAISEI FINECHEMICAL CO ,. LTD) trade name, Tg = 20 ° C.).

  The acrylic resin fine particles are not particularly limited, but examples thereof include those obtained by polymerizing (meth) acrylic monomers such as (meth) acrylic acid and (meth) acrylic acid esters, and (meth) acrylic monomers. And other monomers are copolymerized. Although it does not specifically limit as a commercial item of an acrylic resin emulsion, For example, Mobile 966A (Nippon Synthetic Chemical Industry Co., Ltd. brand name), Microgel E-1002, Microgel E-5002 (Trade name, manufactured by Nippon Paint Co., Ltd.), Boncourt 4001, Boncourt 5454 (tradename, manufactured by DIC), SAE1014 (trade name, manufactured by Zeon Corporation), Cybinol SK-200 (trade name, manufactured by SAIDEN CHEMICAL INDUSTRY CO., LTD.), John Krill 7100, John Krill 390, John Krill 711, John Krill 511, John Krill 7001, John Krill 632, John Krill 741 John Crill 450, John Crill 840, John Crill 62J, John Krill 74J, John Krill HRC-1645J, John Krill 734, John Krill 852, John Krill 7600, John Krill 775, John Krill 537J, John Krill 1535, John Krill PDX-7630A, John Krill 352J, John Krill 352D, John Krill PDX -7145, Jonkrill 538J, Jonkrill 7640, Jonkrill 7641, Jonkrill 631, Jonkrill 790, Jonkrill 780, Jonkrill 7610 (above trade name, manufactured by BASF), NK binder R-5HN (Shin Nakamura Chemical Co., Ltd.) Product name, solid content 44%).

  Among these, at least one selected from the group consisting of (meth) acrylic resins and styrene- (meth) acrylic acid copolymer resins is preferable, and from the group consisting of acrylic resins and styrene-acrylic acid copolymer resins. At least one selected is more preferable, and a styrene-acrylic acid copolymer resin is more preferable. In addition, said copolymer may be any form among a random copolymer, a block copolymer, an alternating copolymer, and a graft copolymer.

(Organic solvent)
The treatment liquid may contain an organic solvent. Although it does not specifically limit as an organic solvent, For example, the alkyl ether (glycol ether) of a polyhydric alcohol and a 1, 2- alkyldiol are mentioned preferably. The glycol ethers are not particularly limited. For example, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether , Diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol mono-t-butyl ether, triethylene glycol monobutyl ether, 1-methyl-1-methoxybutanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether Le, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monopropyl ether, propylene glycol monobutyl ether, and dipropylene glycol monobutyl ether. The 1,2-alkyldiol is not particularly limited, and examples thereof include 1,2-pentanediol and 1,2-hexanediol. In addition to these, straight-line such as 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,7-heptanediol, and 1,8-octanediol. Mention may also be made of chain hydrocarbon diols.

(Surfactant)
The treatment liquid may contain a surfactant. The surfactant is not particularly limited, and examples thereof include acetylene glycol surfactants, fluorine surfactants, and silicone surfactants.

  The acetylene glycol-based surfactant is not particularly limited, and examples thereof include 2,4,7,9-tetramethyl-5-decyne-4,7-diol and 2,4,7,9-tetramethyl-5- Selected from alkylene oxide adducts of decyne-4,7-diol and alkylene oxide adducts of 2,4-dimethyl-5-decyn-4-ol and 2,4-dimethyl-5-decyn-4-ol One or more are preferred. Although it does not specifically limit as a commercial item of acetylene glycol-type surfactant, For example, E series (A product made by Air Products Japan (Inc)) (Surfinol 465), such as Olfine 104 series and Olfine E1010, Surfynol 61 (trade name, manufactured by Nissin Chemical Industry CO., Ltd.) and the like. One acetylene glycol surfactant may be used alone, or two or more acetylene glycol surfactants may be used in combination.

  The fluorosurfactant is not particularly limited. For example, perfluoroalkyl sulfonate, perfluoroalkyl carboxylate, perfluoroalkyl phosphate, perfluoroalkyl ethylene oxide adduct, perfluoroalkyl betaine, perfluoroalkyl betaine, A fluoroalkylamine oxide compound is mentioned. Although it does not specifically limit as a commercial item of a fluorochemical surfactant, For example, S-144, S-145 (Asahi Glass Co., Ltd. product); FC-170C, FC-430, Fluorard-FC4430 (Sumitomo 3M Co., Ltd. product) FSO, FSO-100, FSN, FSN-100, FS-300 (manufactured by Dupont); FT-250, 251 (manufactured by Neos Co., Ltd.) and the like. A fluorine-type surfactant may be used individually by 1 type, and may use 2 or more types together.

  Examples of silicone surfactants include polysiloxane compounds and polyether-modified organosiloxanes. Although it does not specifically limit as a commercial item of a silicone type surfactant, Specifically, BYK-306, BYK-307, BYK-333, BYK-341, BYK-345, BYK-346, BYK-347, BYK -348, BYK-349 (above trade name, manufactured by Big Chemie Japan Co., Ltd.), KF-351A, KF-352A, KF-353, KF-354L, KF-355A, KF-615A, KF-945, KF-640 , KF-642, KF-643, KF-6020, X-22-4515, KF-6011, KF-6012, KF-6015, KF-6017 (all trade names, manufactured by Shin-Etsu Chemical Co., Ltd.), and the like.

[Recording process]
The recording step is a step of discharging and applying ink containing a color material to the fabric subjected to the processing step. In particular, in the recording process, it is preferable to start discharging ink containing a color material onto a fabric having a surface temperature of 35 ° C. or less within 5 minutes after completion of the processing process (wet-on-wet method). By adopting the wet-on-wet method, the recording speed tends to be further improved. Note that the control method of the printing apparatus of the present embodiment may be a wet on dry method.

[Ink composition]
Examples of the ink composition include a coloring material, a resin, water, a surfactant, an organic solvent, and other components as necessary.

(Pigment)
Although it does not specifically limit as a pigment, For example, what is listed below is mentioned.

  Although it does not specifically limit as a black pigment, For example, it is No. 2300, no. 900, MCF88, No. 33, no. 40, no. 45, no. 52, MA7, MA8, MA100, no. 2200B, etc. (Mitsubishi Chemical Corporation), Raven 5750, Raven 5250, Raven 5000, Raven 3500, Raven 1255, Raven 700, etc. (above, Columbia Carbon, Carbon 1 Rubbi 400, Carbon Co. Rega1 330R, Rega1 660R, Mogul L, Monarch 700, Monarch 800, Monarch 880, Monarch 900, Monarch 1000, Monarch 1100, Monarch 1300, Monarch 1400, etc. (Cabot Corp. CA Kol. , Color B lack FW2, Color Black FW2V, Color Black FW18, Color Black FW200, Color B1ack S150, Color Black S160, Color Black S170, Printex 35, Printex U, Printex V, Printex 140U, Special Black 6, Special Black 5, Special Black 4A , Special Black 4 (manufactured by Degussa).

  Although it does not specifically limit as a white pigment, For example, C.I. I. Pigment White 6, 18, 21, and white inorganic pigments of titanium oxide, zinc oxide, zinc sulfide, antimony oxide, magnesium oxide, and zirconium oxide. In addition to the white inorganic pigment, white organic pigments such as white hollow resin particles and polymer particles can also be used.

  Although it does not specifically limit as a pigment used for yellow ink, For example, C.I. I. Pigment Yellow 1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 16, 17, 24, 34, 35, 37, 53, 55, 65, 73, 74, 75, 81, 83, 93, 94, 95, 97, 98, 99, 108, 109, 110, 113, 114, 117, 120, 124, 128, 129, 133, 138, 139, 147, 151, 153, 154, 167, 172, 180.

  Although it does not specifically limit as a magenta pigment, For example, C.I. I. Pigment Red 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 21, 22, 23, 30, 31, 32, 37, 38, 40, 41, 42, 48 (Ca), 48 (Mn), 57 (Ca), 57: 1, 88, 112, 114, 122, 123, 144, 146, 149, 150, 166, 168 170, 171, 175, 176, 177, 178, 179, 184, 185, 187, 202, 209, 219, 224, 245, or C.I. I. Pigment violet 19, 23, 32, 33, 36, 38, 43, 50.

  Although it does not specifically limit as a cyan pigment, For example, C.I. I. Pigment Blue 1, 2, 3, 15, 15: 1, 15: 2, 15: 3, 15:34, 15: 4, 16, 18, 22, 25, 60, 65, 66, C.I. I. Bat Blue 4, 60.

  In addition, the pigment used in color inks other than magenta, cyan, and yellow is not particularly limited. I. Pigment green 7,10, C.I. I. Pigment brown 3, 5, 25, 26, C.I. I. Pigment orange 1, 2, 5, 7, 13, 14, 15, 16, 24, 34, 36, 38, 40, 43, 63.

  Although it does not specifically limit as a pearl pigment, For example, the pigment which has pearl luster and interference gloss, such as titanium dioxide covering mica, fish scale foil, and bismuth acid chloride, is mentioned.

  Although it does not specifically limit as a metallic pigment, For example, the particle | grains which consist of single bodies or alloys, such as aluminum, silver, gold | metal | money, platinum, nickel, chromium, tin, zinc, indium, titanium, copper, are mentioned.

  The content of the pigment is preferably 1 to 15% by mass, more preferably 2.5 to 12.5% by mass, and further preferably 4.5 to 10% by mass with respect to the total amount of the ink. . When the pigment content is within the above range, the processing process can be performed under more appropriate conditions, and the uniformity, concealment, overflow, and coating film adhesion of the resulting printed product are improved overall. Tend to.

(Organic solvent)
The organic solvent is not particularly limited. For example, hydrocarbon solvents such as toluene, hexane, cyclohexane, benzene, octane and isooctane; ester solvents such as ethyl acetate, butyl acetate and γ-butyrolactone; acetone, methyl ethyl ketone and methyl isobutyl Ketone solvents such as ketone and cyclohexanone; alcohol solvents such as methanol, ethanol, propanol, isopropanol and butanol; halogen solvents such as dichloroethane and chloroform; ether solvents such as diethyl ether and tetrahydrofuran; N, N-dimethylformamide Amide solvents such as N, N-dimethylacetamide, N-methyl-2-pyrrolidone, N-ethyl-2-pyrrolidone, N-methyl-ε-caprolactam, hexamethylphosphoramide, etc. Can be mentioned.

  As the surfactant, the same surfactants as exemplified in the treatment liquid can be used.

[Heating process]
A heating process may be further performed after the recording process. In the heating step, the fabric to which the ink is attached is heated. By the heat treatment, a resin (polymer) that can be included in the ink can be fused to the surface of the fabric, and moisture can be evaporated. As a result, the rub resistance of the printed material can be further improved.

  Examples of the heat treatment include, but are not limited to, a heat press method, a normal pressure steam method, a high pressure steam method, and a thermofix method. Moreover, as a heat source of heating, although not limited to the following, infrared (lamp) is mentioned, for example. Moreover, the temperature at the time of heat processing should just melt | fuse the resin (polymer) which can be contained in an ink, and can evaporate a water | moisture content, and it is good to be about 150-200 degreeC.

  After the heating step, the printed material may be washed with water and dried. At this time, if necessary, a soaping process, that is, a process of washing off unfixed pigment with a hot soap solution or the like may be performed.

  Hereinafter, the present invention will be described more specifically using test examples. The present invention is not limited in any way by the following examples.

[Material of treatment liquid]
The main materials for the treatment liquid used in the following test examples are as follows.
[Flocculant]
Calcium nitrate (resin fine particles)
Mobile 966A (Nippon Gosei Co., Ltd., solid content 45%)
〔Organic solvent〕
Glycerin 1,2-hexanediol Triethylene glycol monobutyl ether (TEGmBE)
[Surfactant]
Silicone surfactant (BYK348, manufactured by Big Chemie Japan)

[Preparation of treatment solution]
Each material was mixed with the composition shown in Table 1 below, and stirred sufficiently to obtain each treatment solution. In Table 1 below, the numerical unit is mass%, and the total is 100.0 mass%.

[Material for ink composition]
The main materials for the ink composition used in the following test examples are as follows.
[Color material]
Titanium dioxide slurry (trade name: NanoTek (R) Slurry, manufactured by CI Kasei Co., Ltd., titanium dioxide solid content 20%, average particle size 250 nm)
Cyan pigment dispersion (CI.15: 3 pigment aqueous dispersion, solid content 15%)
〔resin〕
Takerak W6021 (Mitsui Chemicals, solid content 30%)
〔Organic solvent〕
2-Pyrrolidone Glycerin Triethylene glycol Triethylene glycol monobutyl ether [Surfactant]
Silicone surfactant (BYK348, manufactured by Big Chemie Japan)

[Preparation of ink composition]
Each material was mixed with the composition shown in Table 2 below and stirred sufficiently to obtain each ink composition. In Table 2 below, the numerical unit is mass%, and the total is 100.0 mass%.

[Fabric]
PS heavy (manufactured by HANES)
PS light (manufactured by HANES)
GL Ultra (manufactured by HANES)

[Creation of seals]
As the textile printing apparatus, a testing machine modified from EPSON SC-F2000 was used. The test apparatus head was filled with the processing liquid P1, the processing liquid P2, the white ink W1, and the cyan ink C1 respectively in the nozzle rows corresponding to one ink. The treatment liquid and the ink were adhered to each fabric under the conditions shown in Tables 3 to 5 to obtain printed materials. Specifically, first, a processing step was performed, and after completion, the fabric was immediately returned to start application of ink. The fabric temperature was 25 ° C. from the treatment step to the printing step. The time interval was 5 seconds. Further, the droplet resolutions of the treatment liquid and the ink were each 1440 dpi. After printing, the fabric was dried at 170 ° C. for 1 minute.

[Uniformity of imprints (unevenness)]
The uneven aggregation of the ink in the solid pattern of the obtained printed material was visually observed and evaluated according to the following evaluation criteria. This evaluation was performed in a laboratory at room temperature (25 ° C.). All white was recorded on the entire surface.
(Evaluation criteria)
○: No unevenness or almost invisible.
Δ: Slight unevenness is noticeable.
X: Large unevenness is conspicuous.

[Whiteness of imprint]
The L * value of the obtained printed material is measured by a colorimeter (trade name “Gretag Macbeth Spectrolino”, manufactured by X-RITE Co., Ltd.). Based on the obtained L * value, the whiteness is evaluated according to the following evaluation criteria. Evaluated.
(Evaluation criteria when the ink application amount is 150 mg / inch ² )
○: L ^* value is 92 or more Δ: L ^* value is 90 or more and less than 92 ×: L ^* value is less than 90 (Evaluation criteria when ink application amount is 75 mg / inch ² )
○: L ^* value is 88 or more Δ: L ^* value is 86 or more and less than 88 ×: L ^* value is less than 86

[Printed white overflow]
The obtained printed material was visually observed, and white overflow was confirmed according to the following evaluation criteria. Note that “white overflow” means that the ink is not completely absorbed by the fabric and spreads out from the end of the print area.
(Evaluation criteria)
○: There is no overflow or almost no visibility.
Δ: Slight overflow is noticeable.
X: A big overflow is conspicuous.

[Coating film adhesion (wash resistance)]
The obtained printed fabric was subjected to a washing resistance test according to “AATCC61 2A (25 ° C. washing)” and “3A (60 ° C. washing)” and evaluated according to the following evaluation criteria.
(Evaluation criteria)
○: Grade 4 or above △: Grade 3 ×: Grade 2 or below

[Printing yellowing (thermal coloring)]
The obtained printed matter was visually observed, and yellowing (thermal coloring) was confirmed according to the following evaluation criteria.
(Evaluation criteria)
○: No yellowish color Or almost invisible.
Δ: Slightly yellowish.
X: The yellowness is clearly noticeable.

[Printed print blur]
The obtained printed material was visually observed, and bleeding was confirmed according to the following evaluation criteria.
(Evaluation criteria)
○: There is no blur. Or almost invisible.
Δ: Slight blurring is noticeable.
X: The blur is clearly noticeable.

  As shown in Table 3, in the comparison of Test Examples 1 to 5, Test Examples 2 to 4 can obtain a comprehensively preferable result by selecting the type of treatment liquid and the coating amount of each treatment liquid. It has been found that Test Examples 3 to 4 using two kinds of treatment liquids can obtain generally preferable results rather than Test Examples 1 and 5 using only one kind of treatment liquid. Furthermore, in view of Test Examples 41 to 46 in which the coating amount of the treatment liquid is reduced from Test Example 1, a comprehensive favorable result cannot be obtained even if the coating amount of one kind of the treatment liquid is simply changed. I understood that. In contrast to Test Examples 6 to 10, even if the dough type (dough weight) is changed, Test Examples 7 to 9 using two types of treatment liquids than Test Examples 6 and 10 using only one type of treatment liquid are used. It was found that better results can be obtained overall. Furthermore, in the comparison of Test Examples 11 to 15, even if the dough type (dough weight) is changed, it is possible to obtain a comprehensively preferable result by selecting the type of the treatment liquid and the application amount of each treatment liquid. I understood.

  Moreover, even if it is a case where the coating amount of the whole process liquid is reduced as shown in Table 4, the test examples 17-19 which use two types of process liquids rather than the test examples 16 and 20 which use only one type of process liquid. It was found that overall favorable results can be obtained. Furthermore, even when the amount of ink applied is reduced, Test Examples 22 to 24 using two types of treatment liquids give a more preferable result than Test Examples 21 and 25 using only one type of treatment liquid. I found out that I could do it. Further, in the comparison of Test Examples 26 to 30, even if the dough type (dough weight) is changed, it is possible to obtain a comprehensively preferable result by selecting the type of the treatment liquid and the application amount of each treatment liquid. I understood. Furthermore, in the comparison of Test Examples 31 to 35, even if the dough type (dough weight) and the application amount of the treatment liquid are changed, it is generally preferable to select the type of the treatment liquid and the application amount of each treatment liquid. It turns out that the result can be obtained.

  Further, as shown in Table 5, even if the ink type is changed, as in Test Examples 16 to 20, Test Examples 37 to 39 using two treatment liquids are used instead of Test Examples 36 and 40 using only one treatment liquid. It was found that better results can be obtained overall.

  DESCRIPTION OF SYMBOLS 1 ... Printer, 10 ... Ink supply unit, 20 ... Conveyance unit, 30 ... Head unit, 50 ... Maintenance unit, 110 ... Detector group, 120 ... Controller, 121 ... Interface, 122 ... CPU, 123 ... Memory, 124 ... Unit Control circuit, 130 ... computer.

Claims (13)

An inkjet head for performing a treatment step of discharging and applying a treatment liquid onto the fabric;
An inkjet head that performs a recording step of discharging and applying ink containing a coloring material to the fabric subjected to the processing step;
Comprising two or more treatment liquids having different compositions as the treatment liquid;
Textile printing equipment. A method for controlling a textile printing apparatus according to claim 1,
Selecting a treatment liquid to be used in the treatment step from two or more treatment liquids, and determining a coating amount per unit area of the selected treatment liquid on the fabric;
Control method for printing apparatus. In the determination step, the treatment liquid is selected and the coating amount is determined according to at least one of the type of the fabric, the type of the ink used in the recording step, and the recording conditions of the ink in the recording step. I do,
The method for controlling a textile printing apparatus according to claim 2. In the determination step, select two or more treatment liquids to be used in the treatment step.
The control method of the textile printing apparatus of Claim 2 or 3. In the determination step, two or more treatment liquids to be used in the treatment step are selected, and an application amount per unit area of the selected two or more treatment liquids to the fabric is determined.
The control method of the textile printing apparatus of any one of Claims 2-4. Two or more of the treatment liquids each contain at least one of resin fine particles and an aggregating agent.
The control method of the textile printing apparatus of any one of Claims 2-5. Two or more of the treatment liquids are at least
A treatment liquid A containing resin fine particles having a solid content MA and a flocculant having a solid content NA;
A resin fine particle having a solid content MB and a treatment liquid B containing a flocculant having a solid content NB, and
The treatment liquid A and the treatment liquid B have a relationship I in which MA / MB and NA / NB are different from each other.
The control method of the textile printing apparatus of any one of Claims 2-6. Two or more of the treatment liquids are at least
Treatment liquid A containing resin fine particles of solid content MA;
Treatment liquid B containing resin fine particles of solid content MB,
The treatment liquid A and the treatment liquid B have a relation II of 0.2% by mass <absolute value (MA-MB) <20% by mass,
The control method of the textile printing apparatus of any one of Claims 2-6. Two or more of the treatment liquids are at least
Treatment liquid A containing a flocculant having a solid content NA,
And a treatment liquid B containing a flocculant having a solid content of NB,
The treatment liquid A and the treatment liquid B have a relation III of 0.2% by mass <absolute value (NA-NB) <20% by mass,
The control method of the textile printing apparatus of any one of Claims 2-6. When the type of ink used in the recording process is white ink,
In the determination step, a processing solution to be used for the processing step is selected from two or more of the processing solutions, and a coating amount per unit area of the selected processing solution on the fabric is determined.
The control method of the textile printing apparatus of any one of Claims 2-9. In the determination step, according to the mass per unit area of the fabric, the treatment liquid is selected and the coating amount is determined.
The control method of the textile printing apparatus of any one of Claims 2-10. In the determination step, the processing liquid is selected and the coating amount is determined according to the coating amount per unit area of the ink in the recording step.
The control method of the textile printing apparatus of any one of Claims 2-11. In the recording step, within 5 minutes after the completion of the treatment step, the ink containing the coloring material is started to be ejected onto the fabric having a surface temperature of 35 ° C. or less.
The control method of the textile printing apparatus of any one of Claims 2-12.

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