Treatment liquid composition for dye printing, composition set, printing method, and inkjet printing method

Abstract

A composition for dyeing, a composition set, a dyeing method, and an inkjet dyeing method are related. By previously attaching a treatment liquid composition to cloth and dyeing the cloth to which the treatment liquid composition is attached, a dyeing with excellent color development and good hand is obtained. The treatment liquid composition for dyeing is attached to cloth for use, and contains a polyester resin having a structural unit derived from an aromatic compound containing phthalic acid and a structural unit derived from a non-aromatic compound containing a (poly)alkylene glycol, and the content of the structural unit derived from the phthalic acid is 15 mol% or more and 85 mol% or less with respect to 100 mol% of the polyester resin, and the content of the structural unit derived from the (poly)alkylene glycol is 15 mol% or more and 85 mol% or less with respect to 100 mol% of the polyester resin.

Description

Technical Field

[0001] This invention relates to a dye processing solution composition, a composition kit, a dyeing method, and an inkjet dyeing method. Background Technology

[0002] Previously, when manufacturing printed and dyed products by dyeing fabrics with pigments, it was known to pre-treat the fabric with a treatment solution in order to improve the color development and fastness of the pigments. As such a technique, for example, the technique described in Patent Document 1, of adhering a pre-treatment solution containing an aqueous composition to a polyester fabric was known.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2009-249773 Summary of the Invention

[0004] However, the pretreatment solution in Patent Document 1 has the problem of failing to produce printed and dyed products with excellent color development and a good hand feel. Originally, Patent Document 1 was a technology for polyester fabrics and did not describe its application to natural fiber fabrics. Unlike natural fiber fabrics, polyester fabrics can be printed and dyed using dyes even without a pretreatment solution.

[0005] This invention relates to a dyeing and printing treatment liquid composition, which is a treatment liquid composition applied to fabric. The treatment liquid composition comprises a polyester resin and water. The polyester resin has structural units derived from aromatic compounds and structural units derived from non-aromatic compounds. The aromatic compounds include phthalic acid, and the non-aromatic compounds include (poly)alkylene glycols. The content of structural units derived from phthalic acid is 15 mol% to 85 mol% relative to 100 mol% of the polyester resin, and the content of structural units derived from (poly)alkylene glycols is 15 mol% to 85 mol% relative to 100 mol% of the polyester resin. Attached Figure Description

[0006] Figure 1 This is a flowchart illustrating an example of the indirect printing and dyeing recording method of this embodiment. Detailed Implementation

[0007] Hereinafter, embodiments of the present invention (hereinafter referred to as "this embodiment") will be described in detail, but the present invention is not limited thereto and various modifications can be made without departing from its spirit.

[0008] 1. Dyeing and printing treatment solution composition

[0009] The dyeing treatment liquid composition of this embodiment (hereinafter also referred to as the "treatment liquid composition") is a treatment liquid composition applied to fabric. The treatment liquid composition comprises a polyester resin and water. The polyester resin has structural units derived from aromatic compounds and structural units derived from non-aromatic compounds. The aromatic compounds include phthalic acid, and the non-aromatic compounds include (poly)alkylene glycols. The content of the phthalic acid-derived structural units relative to 100 mol% of the polyester resin is 15 mol% or more and 85 mol% or less, and the content of the (poly)alkylene glycol-derived structural units relative to 100 mol% of the polyester resin is 15 mol% or more and 85 mol% or less. The treatment liquid composition is preferably used to apply it to the fabric before dyeing.

[0010] According to this embodiment, by pre-attaching the treatment liquid composition to the fabric and then dyeing the fabric with the treatment liquid composition attached, it is possible to obtain a dyed product with excellent color development and a good hand feel.

[0011] The reasons for achieving such excellent results through this embodiment are not yet clear, but the inventors presume the following.

[0012] In other words, inks containing disperse dyes, etc., used for printing and dyeing typically have low affinity for fabrics containing fibers such as cotton, making dyeing difficult. On the other hand, inks containing disperse dyes, etc., readily dye polyester resins primarily through non-covalent bonds such as π-π interactions and van der Waals forces with structural unit portions of aromatic compounds in the polyester resin. Moreover, polyester resins have high affinity for fabrics containing fibers, thus allowing them to remain on the fabric. Therefore, by using a treatment liquid composition to adhere polyester resin to the fabric, dyeing properties of inks containing disperse dyes, etc., can be imparted even to fabrics containing fibers such as cotton.

[0013] However, the structural units derived from aromatic compounds in polyester resins are rigid, so when using polyester resins with a high content of aromatic compound-derived structural units, the resulting printed and dyed products tend to have a poor hand feel. On the other hand, when using polyester resins with a low content of aromatic compound-derived structural units, the inks tend to have difficulty dyeing the polyester resin and the color development is poor.

[0014] On the other hand, the processing liquid composition of this embodiment comprises a polyester resin having structural units derived from aromatic compounds and structural units derived from non-aromatic compounds, wherein the aromatic compound includes phthalic acid, the non-aromatic compound includes (poly)alkylene glycol, and the content of the structural units derived from phthalic acid and the content of the structural units derived from (poly)alkylene glycol are each a specific amount. This polyester resin has moderate flexibility resulting from the portions of the structural units derived from phthalic acid and those derived from (poly)alkylene glycol, and also has excellent ink-dyeing properties resulting primarily from the portions of the structural units derived from phthalic acid, which is an aromatic compound. Therefore, it is presumed that by attaching this polyester resin to a fabric, a printed product with excellent color development and a good hand feel can be obtained. However, the reasons are not limited to this.

[0015] Next, the components contained in the treatment liquid composition will be described, and the cloth will be described later.

[0016] 1.1. Polyester resin

[0017] The treatment liquid composition comprises a polyester resin. The polyester resin has structural units derived from aromatic compounds and structural units derived from non-aromatic compounds, the aromatic compounds including phthalic acid and the non-aromatic compounds including (poly)alkylene glycols. The content of the phthalic acid-derived structural units is 15 mol% or more and 85 mol% or less relative to 100 mol% of the polyester resin, and the content of the (poly)alkylene glycol-derived structural units is 15 mol% or more and 85 mol% or less relative to 100 mol% of the polyester resin.

[0018] By including such a polyester resin in the treatment liquid composition, it is possible to obtain printed and dyed products with excellent color development and good hand feel.

[0019] It should be noted that, in this specification, "structural units derived from phthalic acid" refers not only to structural units in the polyester resin derived from the polymerization of phthalic acid, but also to structural units formed by reactions that can generate the same structural units. The same interpretation applies to "structural units derived from (poly)alkylene glycols".

[0020] The polyester resin contains structural units derived from phthalic acid in a specific amount as structural units derived from aromatic compounds. In this specification, phthalic acid includes phthalic acid, isophthalic acid, and terephthalic acid. Furthermore, phthalic acid may have substituents and may be a salt. Examples of salts include potassium salts and sodium salts.

[0021] Considering the tendency to obtain printed and dyed materials with better color development and good hand feel, the content of structural units derived from phthalic acid relative to 100 mol% of polyester resin is preferably 20 mol% or more and 80 mol% or less.

[0022] Examples of phthalic acids include: phthalic acid, isophthalic acid, terephthalic acid; alkylphthalic acids such as methyl phthalic acid, methyl isophthalic acid, and methyl terephthalic acid; hydroxyphthalic acids such as hydroxyphthalic acid, hydroxy isophthalic acid, and hydroxy terephthalic acid; aminophthalic acids such as aminophthalic acid, amino isophthalic acid, and amino terephthalic acid; nitrophthalic acids such as nitrophthalic acid, nitro isophthalic acid, and nitro terephthalic acid; and sulfophthalic acids such as sulfophthalic acid, sulfo isophthalic acid, and sulfo terephthalic acid; and their salts. One type of phthalic acid may be used alone, or two or more may be used in combination.

[0023] Considering the tendency to obtain printed and dyed materials with superior color development, better hand feel, and superior scratch resistance and wash fastness, phthalic acid is preferably selected from one or more of the group consisting of phthalic acid, isophthalic acid and terephthalic acid, and more preferably selected from one or more of the group consisting of isophthalic acid and terephthalic acid.

[0024] Considering the tendency to obtain printed and dyed products that possess better hand feel, scratch resistance, and wash fastness, as well as superior color development and colorfastness, phthalic acid more preferably includes terephthalic acid and isophthalic acid. In this case, the molar ratio of the content of structural units derived from isophthalic acid to the content of structural units derived from terephthalic acid is preferably 0.5 or more and 3.0 or less. Considering the tendency to obtain printed and dyed products that possess even better hand feel, scratch resistance, wash fastness, and colorfastness, as well as further superior color development, the molar ratio of the content of structural units derived from isophthalic acid to the content of structural units derived from terephthalic acid is preferably 2.0 or more and 2.5 or less.

[0025] When the molar ratio of the content of structural units derived from isophthalic acid to the content of structural units derived from terephthalic acid is within the above-mentioned range, the reasons for the tendency to obtain printed and dyed products that have better hand feel, scratch resistance, and wash fastness, while also exhibiting superior color development and colorfastness, are not yet clear. The inventors presume the following: That is, when the molar ratio is within the above-mentioned range, the polymer chains in the polyester resin have a moderately curved structure. It is presumed that inks containing disperse dyes, etc., readily enter the polymer chains, resulting in better dyeability of the polyester resin. Therefore, there is a tendency to obtain printed and dyed products that have better hand feel, scratch resistance, and wash fastness, while also exhibiting superior color development and colorfastness. However, the reasons are not limited to this.

[0026] Polyester resins contain structural units derived from (poly)alkylene glycols as structural units derived from non-aromatic compounds in specific amounts. In this specification, (poly)alkylene glycols are non-aromatic compounds whose backbone has an alkylene group, but the backbone may contain at least one bond selected from the group consisting of ether bonds and ester bonds. Furthermore, in this specification, (poly)alkylene glycols refer to both alkylene glycols having one alkylene group in their structure and polyalkylene glycols having two or more alkylene groups in their structure. The alkylene group can be linear, branched, or alicyclic.

[0027] Considering the tendency to obtain printed and dyed materials with better color development, colorfastness and better hand feel, the content of structural units derived from (poly)alkylene glycols is preferably 20 mol% or more and 80 mol% or less relative to 100 mol% of polyester resin.

[0028] Considering the tendency to obtain printed and dyed materials with better color development, colorfastness and better hand feel, (poly)alkylene glycols are preferably straight-chain or branched (poly)alkylene glycols with 2 to 20 carbon atoms, and more preferably straight-chain or branched (poly)alkylene glycols with 2 to 10 carbon atoms.

[0029] Examples of alkylene glycols include: ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, 1,2-propanediol, 1,3-propanediol, tripropylene glycol, tetrapropylene glycol, hexamethylene glycol, tetramethylene glycol, neopentyl glycol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 1,2-pentanediol, 1,5-pentanediol, 1,2-hexanediol, 1,6-hexanediol, 3-methyl-1,5-pentanediol, 1,2-cyclohexanediol, 1,4-cyclohexanediol, and 1,4-cyclohexanediol. Glycerin, trimethylolethane, trimethylolpropane, 1,2,5-hexanetriol, 1,2,6-hexanetriol, pentaerythritol, trimethylolmelamine, dimethyl-1,3-pentanediol, diethyl-1,3-pentanediol, dipropyl-1,3-pentanediol, dibutyl-1,3-pentanediol, 2-butyl-2-ethyl-1,3-propanediol, tricyclodecanediethanol, pentacyclopentadecanedimethanol, 1,3-adamantanediol, 2,2-adamantanediol, polyethylene glycol, polypropylene glycol, polytetramethylene glycol, and polytetramethylene ether glycol. Alkylene glycols can be used alone or in combination with two or more.

[0030] Considering the tendency to obtain printed and dyed materials with superior color development, colorfastness, and better hand feel, the (poly)alkylene glycol is preferably selected from one or more of the group consisting of ethylene glycol, neopentyl glycol, and diethylene glycol, and more preferably from one or more of the group consisting of ethylene glycol and neopentyl glycol.

[0031] As long as the polyester resin can achieve the effects of the present invention, it can contain aromatic compounds other than phthalic acid and non-aromatic compounds other than (poly)alkylene glycols as structural units.

[0032] Examples of such compounds include: 4,4'-biphenyldicarboxylic acid, 2,5-naphthalenedicarboxylic acid, 1,5-naphthalenedicarboxylic acid, 2,6-naphthalenedicarboxylic acid, 2,7-naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, adipic acid, azelaic acid, sebacic acid, dodecanedicarboxylic acid, glutaric acid, succinic acid, trimellitic acid, pyromellitic acid, pyromellitic tetracarboxylic acid, trimellitic anhydride, phthalic anhydride, succinic anhydride, and p-hydroxybenzoic acid, and their salts, as well as other polycarboxylic acids; and terephthalic alcohols such as terephthalic acid diethanolamide, bisphenol A-ethylene glycol adduct, dimethylolpropionic acid, and dimethylolethanesulfonic acid, and their salts. Examples of salts include: potassium salts, sodium salts, calcium salts, and magnesium salts. These compounds can be used alone or in combination with two or more.

[0033] Polyester resins, provided they achieve the effects of this invention, may contain hydroxyl, carboxyl, and sulfonic acid groups, as well as their sodium salts. One or more of these groups may be contained in the polyester resin.

[0034] Polyester resins containing sulfonic acid groups have, for example, structural units derived from phthalic acid, structural units derived from (poly)alkylene glycols, and structural units derived from aromatic monomers containing sulfonic acid groups.

[0035] Examples of aromatic monomers containing a sulfonic acid group include 5-sulfoisophthalic acid, sulfoterephthalic acid, 4-sulfophthalic acid, 4-sulfonamide-2,7-dicarboxylic acid, and 4-sulfo-1,8-naphthalenedicarboxylic anhydride, as well as their salts. As a salt, sodium salts are preferred, referring to the foregoing.

[0036] By including these groups in the polyester resin, the polyester resin can react well with the crosslinking agent described below, and the bonding with fabric, preferably fabric containing fibers with hydroxyl groups, becomes good. Therefore, it is possible to obtain printed and dyed products that have superior color development and hand feel, while also exhibiting excellent scratch resistance, wash fastness, and colorfastness.

[0037] Considering the tendency to obtain printed and dyed materials with excellent color development, good hand feel, and superior colorfastness, the glass transition temperature of the polyester resin is preferably 50°C or higher. The lower limit is, for example, 180°C or lower, and can be 150°C or lower. It should be noted that, in this specification, the glass transition temperature of the polyester resin can be determined, for example, using a differential scanning calorimeter (hereinafter also referred to as "DSC").

[0038] Polyester resins can be obtained through conventional synthesis methods.

[0039] Examples of such methods include: simultaneously adding phthalic acid, (poly)alkylene glycol, and other compounds other than phthalic acid and (poly)alkylene glycol in any amount, as needed, and polymerizing them through esterification, transesterification, and condensation reactions. The polymerization temperature is not particularly limited, but is preferably in the range of 180°C to 290°C. Polymerization catalysts such as titanium-based catalysts, tin-based catalysts, zinc acetate, antimony trioxide, and germanium dioxide can be used in the polymerization. Specific synthesis methods can be found in the examples.

[0040] Polyester resin can be used alone or in combination with two or more types.

[0041] Considering the tendency to obtain printed and dyed products with superior color development, hand feel, colorfastness, scratch resistance, and wash fastness, the content of polyester resin, in terms of solid content relative to the total amount of the treatment liquid composition, is preferably 0.05% by mass or more and 20% by mass or less. Considering the tendency to obtain printed and dyed products with superior hand feel, scratch resistance, colorfastness, and wash fastness, while also having superior color development, the content of polyester resin, in terms of solid content relative to the total amount of the treatment liquid composition, is more preferably 2% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass or less.

[0042] 1.2. Crosslinking agent

[0043] The treatment liquid composition preferably further comprises a crosslinking agent.

[0044] By including a crosslinking agent, the treatment liquid composition can be made crosslinkable, enabling the polyester resin, dye, and fabric to bond. Therefore, there is a tendency to obtain printed and dyed fabrics that possess excellent color development and scratch resistance while also exhibiting good hand feel, as well as excellent wash fastness and colorfastness / fading resistance.

[0045] As a crosslinking agent, it is possible to appropriately select from known crosslinking agents, such as those that initiate the crosslinking reaction at room temperature or those that initiate the crosslinking reaction by heat. Examples of such crosslinking agents include: self-crosslinking agents, compounds having multiple functional groups within the molecule that react with unsaturated carboxylic acid components, and metals having multiple coordination sites.

[0046] Considering the tendency to obtain printed and dyed fabrics that have excellent color development, scratch resistance, wash fastness, and color change / fading resistance while having a good hand feel, crosslinking agents preferably contain isocyanate groups and / or oxazoline groups, more preferably isocyanate groups.

[0047] Examples of crosslinking agents containing isocyanate groups include water-dispersible (terminated) polyisocyanates. It should be noted that (terminated) polyisocyanates refer to polyisocyanates and / or terminated polyisocyanates. These crosslinking agents containing isocyanate groups can be used alone or in combination of two or more.

[0048] Examples of water-dispersible polyisocyanates include substances obtained by dispersing polyisocyanates with hydrophilicity imparted by polyethylene oxide chains in water using anionic or nonionic dispersants.

[0049] Examples of polyisocyanates include hexamethylene diisocyanate, isoflurane diisocyanate, and other diisocyanates; derivatives (modified products) of these diisocyanates such as trimethylolpropane adducts, biuret forms, and isocyanurate forms. Furthermore, polyisocyanates may have an isocyanurate backbone in their structure. These polyisocyanates can be used alone or in combination of two or more.

[0050] Water-dispersible, capped polyisocyanates are substances obtained by capping the isocyanate groups of water-dispersible polyisocyanates with capping agents. Examples of capping agents include diethyl malonate, ethyl acetoacetate, ε-caprolactam, butanone oxime, cyclohexanone oxime, 1,2,4-triazole, dimethyl-1,2,4-triazole, 3,5-dimethylpyrazole, and imidazole. These capping agents can be used alone or in combination of two or more.

[0051] As a crosslinking agent, a crosslinking agent containing isocyanate groups that has an isocyanurate backbone in its structure is preferred, and a water-dispersible polyisocyanate having an isocyanurate backbone in its structure is more preferred. Crosslinking agents containing isocyanate groups that have an isocyanurate backbone have at least three crosslinking sites, and therefore tend to achieve more suitable bonding between the polyester resin and the fabric. Therefore, there is a tendency to obtain printed and dyed fabrics that have a good hand feel, superior color development and scratch resistance, and excellent wash fastness and colorfastness / fading resistance.

[0052] Commercially available products can also be used as crosslinking agents containing isocyanate groups. Examples of such commercially available products include: Fixer #100ECO, #104EA, #220, 70ECO, #70, #410, and #400 (trade names, Murayama Chemical Research Institute Co., Ltd.); and Elastron (registered trademark) BN-11, BN-27, BN-69, and BN-77 (trade names, Daiichi Kogyo Pharmaceutical Co., Ltd.).

[0053] Examples of crosslinking agents containing oxazoline groups include compounds having two or more oxazoline groups in their molecules. Examples of compounds containing an oxazoline group include, for example, 2,2'-bis(2-oxazoline), 2,2'-methylenebis(2-oxazoline), 2,2'-ethylidenebis(2-oxazoline), 2,2'-trimethylenebis(2-oxazoline), 2,2'-tetramethylenebis(2-oxazoline), 2,2'-hexamethylenebis(2-oxazoline), 2,2'-octamethylenebis(2-oxazoline), 2,2'-ethylidenebis(4,4'-dimethyl-2-oxazoline), 2,2'-p-phenylenebis(2-oxazoline), 2,2'-m-phenylenebis(2-oxazoline), 2,2'-m-phenylenebis(4,4'-dimethyl-2-oxazoline), bis(2-oxazoline-cyclohexane) sulfide, bis(2-oxazoline-norbornene) sulfide, and polymers containing an oxazoline ring. These compounds containing the oxazolin group can be used alone or in combination with two or more.

[0054] Considering the tendency to produce printed and dyed fabrics that can more firmly bond polyester resin, dyes and fabrics, and that have better color development, scratch resistance, wash fastness and color change / fading resistance while having a good hand feel, water-soluble compounds containing oxazoline groups are preferred as compounds containing oxazoline groups.

[0055] Commercially available products can also be used as crosslinking agents containing oxazoline groups. Examples of commercially available products include: Epocros (registered trademark) K-2010, K-2020, K-2030, K-2035E, WS-300, WS-500 and WS-700 (these are trade names, Nippon Shokubai Co., Ltd.).

[0056] Crosslinking agents can be used alone or in combination with two or more.

[0057] Considering the tendency to obtain printed and dyed products that have better color development, scratch resistance, wash fastness, and color change / fading resistance while having a good hand feel, the content of crosslinking agent is preferably 0.1 to 10.0% by mass relative to the total amount of the treatment liquid composition, in terms of solid content.

[0058] 1.3. Water

[0059] The treatment fluid composition contains water.

[0060] After the treatment solution composition is adhered to the cloth, the water evaporates and disperses through drying. Examples of water include pure water such as ion-exchanged water, ultrafiltration water, reverse osmosis water, and distilled water; and ultrapure water, which has had ionic impurities removed as much as possible. In addition, water sterilized by ultraviolet irradiation or the addition of hydrogen peroxide can inhibit the growth of mold and bacteria when storing the treatment solution composition for a long time, and is therefore preferred.

[0061] The water content, relative to the total amount of the treatment liquid composition, is 30% by mass or more and 98% by mass or less, preferably 35% by mass or more and 96% by mass or less, and more preferably 40% by mass or more and 94% by mass or less. By keeping the water content within the above range, the increase in viscosity of the treatment liquid can be suppressed, thereby improving workability when applying the treatment liquid to the fabric and the drying properties after the treatment liquid has adhered.

[0062] From the perspective of obtaining higher affinity and higher safety for fabrics, preferably fabrics containing fibers with hydroxyl groups, the treatment liquid composition is preferably an aqueous treatment liquid composition. It should be noted that, in this embodiment, "aqueous" means that the water content relative to the total amount of the composition is 30% by mass or more.

[0063] 1.4. Other ingredients

[0064] The treatment fluid composition may contain various additives such as surfactants, cosolvents, viscosity modifiers, pH adjusters, antioxidants, preservatives, fungicides, corrosion inhibitors, and chelating agents.

[0065] Additives can be used alone or in combination with two or more.

[0066] The content of each additive is, for example, 0.01% by mass and 5.0% by mass, relative to the total amount of the treatment liquid composition.

[0067] 1.5. Preparation method of the treatment liquid composition

[0068] The treatment liquid composition can be prepared by mixing the components in any order and removing impurities and foreign matter by filtration or other methods as needed. As a method for mixing the components, one method involves sequentially adding each component to a container equipped with a stirring device such as a mechanical stirrer or a magnetic stirrer and then stirring and mixing. Examples of filtration methods include centrifugal filtration and filter filtration.

[0069] 1.6. Physical properties of the treatment liquid composition

[0070] The physical properties of the treatment liquid composition can be adjusted arbitrarily according to the type of fabric, the method of adhering it to the fabric, i.e., the coating method. The coating method of the treatment liquid composition is described below.

[0071] 1.6.1. Viscosity

[0072] The viscosity of the treatment liquid composition at 20°C is preferably 1.5 mPa·s or more and 100 mPa·s or less. By keeping the viscosity of the treatment liquid within the above range, the spreadability and other coating properties of the treatment liquid when it is applied to a fabric can be improved.

[0073] It should be noted that the viscosity of the treatment fluid composition was measured, for example, using a viscoelasticity tester MCR-300 (Pysica). Specifically, it could be measured by adjusting the temperature of the treatment fluid composition to 20°C and reading the shear viscosity (mPa·s) at a shear rate of 200 (1 / s).

[0074] 1.6.2. Surface tension

[0075] The surface tension of the treatment liquid composition at 25°C is preferably 30 mN / m or more and 50 mN / m or less. By keeping the surface tension of the treatment liquid composition within the above range at 25°C, it exhibits appropriate wetting and penetration properties to the fabric. In addition, the treatment liquid composition is easily and uniformly absorbed by the fabric, thus suppressing the occurrence of uneven coating or variations in the amount of coating material that may occur during the application of the treatment liquid composition.

[0076] It should be noted that the surface tension of the treatment liquid composition can be measured, for example, using an automatic surface tension meter CBVP-Z (Kyowa Interface Science Co., Ltd.). Specifically, it can be measured by reading the surface tension when the treatment liquid composition wets a platinum plate at 25°C.

[0077] 2. Inkjet ink composition

[0078] The inkjet ink composition (hereinafter also referred to as "ink composition") is used to print and dye fabrics coated with the processing liquid composition of this embodiment to produce printed and dyed products. Next, the ink composition will be described.

[0079] The ink composition involved in this embodiment contains disperse dye and water.

[0080] 2.1. Disperse dyes

[0081] From the perspective of obtaining excellent color development on fabrics coated with the treatment liquid composition, disperse dyes are included as dyes in the ink composition. Disperse dyes are typically pigments that form particles and are dispersed in a dispersion medium using a dispersant. Furthermore, disperse dyes are typically nonionic dyes having hydrophilic groups and moderately polar groups. Disperse dyes can be used alone or in combination with two or more.

[0082] Examples of disperse dyes include CI disperse yellow, CI disperse red, CI disperse blue, CI disperse orange, CI disperse violet, CI disperse green, CI disperse brown, and CI disperse black.

[0083] Among these, sublimable dyes are preferred as dispersants. Here, "sublimable dye" refers to a dye that has the property of sublimating upon heating.

[0084] Specifically, examples of such sublimating dyes include: CI Disperse Yellow 3, 7, 8, 23, 39, 51, 54, 60, 71, and 86; CI Disperse Orange 1, 1:1, 5, 20, 25, 25:1, 33, 56, and 76; CI Disperse Brown 2; CI Disperse Red 11, 50, 53, 55, 55:1, 59, 60, 65, 70, 75, 93, 146, 158, 190, and 190:1. 207, 239 and 240; CI Reduction Red 41; CI Disperse Violet 8, 17, 23, 27, 28, 29, 36 and 57; CI Disperse Blue 14, 19, 26, 26:1, 35, 55, 56, 58, 64, 64:1, 72, 72:1, 81, 81:1, 91, 95, 108, 131, 141, 145 and 359; CI Solvent Blue 36, 63, 105 and 111, etc.

[0085] In this embodiment, from the viewpoint of obtaining better dyeability of the fabric to which the treatment liquid composition is applied and obtaining printed and dyed products with sufficient color development, cyan dyes, red dyes, and yellow dyes are preferred. From the viewpoint of obtaining better dyeability and obtaining printed and dyed products with sufficient color development, CI Disperse Blue 359 is more preferred as a cyan dye. CI Disperse Red 60 is more preferred as a red dye. CI Disperse Yellow 54 is more preferred as a yellow dye.

[0086] From the viewpoint of more effectively and reliably exerting the effects of this embodiment, the pigment content is preferably 0.05% by mass or more and 20% by mass or less relative to the total amount of the ink composition.

[0087] 2.2. Water

[0088] The ink composition contains water.

[0089] The water also includes, preferably, water contained in the above-described treatment liquid composition.

[0090] From the viewpoint of more effectively and reliably exerting the effects of this embodiment, the water content is preferably 30% by mass or more and 80% by mass or less relative to the total amount of the ink composition.

[0091] 2.3. Dispersant

[0092] The ink composition may contain a dispersant.

[0093] When an ink composition contains a dispersant, the disperse dye exhibits excellent dispersibility, and the ink composition demonstrates excellent clogging resistance. Examples of dispersants include sodium naphthalenesulfonate-formaldehyde condensates and resins. Sodium naphthalenesulfonate-formaldehyde condensates are compounds or salts thereof obtained by condensing a sulfonate having a naphthalene ring in its molecule with formaldehyde. A single dispersant may be used, or two or more may be used in combination.

[0094] From the perspective of better dispersibility, the dispersant preferably contains a resin. Examples of resins include: polyurethane resins, styrene-acrylic resins, acrylic resins, fluorene resins, polyolefin resins, rosin-modified resins, terpene resins, polyester resins, polyamide resins, epoxy resins, vinyl chloride resins, vinyl chloride-vinyl acetate copolymers, and ethylene-vinyl acetate resins. Among these, from the perspective of excellent clogging resistance, polyurethane resins and styrene-acrylic resins are preferred, and styrene-acrylic resins are more preferred.

[0095] There are no particular restrictions on polyurethane resins as long as they contain urethane bonds within their molecules. Examples of polyurethane resins include: polyether-type polyurethane resins containing ether bonds in the main chain (in addition to urethane bonds), polyester-type polyurethane resins containing ester bonds in the main chain, and polycarbonate-type polyurethane resins containing carbonate bonds in the main chain. Polyurethane resins can be used alone or in combination with two or more types.

[0096] As a polyurethane resin, commercially available products can also be used. Examples of commercially available products include: TAKELAC (registered trademark) W6110 (trade name) manufactured by Mitsui Chemicals Co., Ltd.; Acrit (registered trademark) WBR-022U (trade name) manufactured by Taisei Fine Chemicals Co., Ltd.; PERMARIN (registered trademark) UX-368T (trade name), UPRENE (registered trademark) UXA-307 (trade name), and UCOAT (registered trademark) UWS-145 (trade name) manufactured by Sanyo Chemical Industries, Ltd.; and Solsperse (registered trademark) 47000 (trade name) manufactured by Lubrizol Corporation.

[0097] Examples of styrene-acrylic resins include, for example, styrene-acrylic acid copolymers, styrene-methacrylic acid copolymers, styrene-methacrylic acid-acrylate copolymers, styrene-α-methylstyrene-acrylic acid copolymers, and styrene-α-methylstyrene-acrylic acid-acrylate copolymers. These copolymers can be in any of the following forms: random copolymers, block copolymers, alternating copolymers, and graft copolymers.

[0098] As a styrene-acrylic resin, commercially available products can also be used. Examples of commercially available products include Joncryl 67 (trade name) manufactured by BASF Japan Co., Ltd., and Solsperse 43000 (trade name) manufactured by Lubrizol Corporation.

[0099] From the viewpoint of more effectively and reliably exerting the effects of this embodiment, the content of dispersant is preferably 3.0% by mass or more and 8.0% by mass or less relative to the total amount of ink composition.

[0100] 2.4. Surfactants

[0101] The ink composition may contain a surfactant.

[0102] Examples of surfactants include acetylenic diol surfactants, fluorinated surfactants, and organosilicon surfactants. Surfactants can be used alone or in combination with two or more.

[0103] Examples of acetylenic diol surfactants include, for example, 2,4,7,9-tetramethyl-5-decyn-4,7-diol and its alkyl oxide adducts, and 2,4-dimethyl-5-decyn-4-ol and its alkyl oxide adducts.

[0104] Commercially available products can also be used as acetylacetonate diol surfactants. Examples of commercially available products include: Olfine 104 series (trade name) and E series (trade name) manufactured by Nissin Chemical Industry Co., Ltd., and Sufynol series (trade name) manufactured by Air Products and Chemicals Co., Ltd.

[0105] Examples of fluorinated surfactants include: perfluoroalkyl sulfonates, perfluoroalkyl carboxylates, perfluoroalkyl phosphates, perfluoroalkyl ethylene oxide adducts, perfluoroalkyl betaines, and perfluoroalkyl amine oxides.

[0106] Commercially available products can also be used as fluorinated surfactants. Examples of commercially available products include S-144 (trade name) and S-145 (trade name) manufactured by Asahi Glass Co., Ltd.

[0107] Examples of organosilicon surfactants include: polysiloxane compounds and polyether-modified organosilicon compounds.

[0108] As a silicone surfactant, commercially available products can also be used. Examples of commercially available products include BYK (registered trademark) series products 306, 307, 333, 341, 345, 346, 347, 348, and 349 (these are trade names) manufactured by BYK Chemicals Japan Co., Ltd.

[0109] From the viewpoint of more effectively and reliably exerting the effects of this embodiment, the content of surfactant is preferably 0.5% by mass or more and 5.0% by mass or less relative to the total amount of ink composition.

[0110] 2.5. Water-soluble organic solvents

[0111] The ink composition may contain a water-soluble organic solvent.

[0112] Examples of water-soluble organic solvents include: glycerol; glycols such as ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, 1,3-propanediol, 1,2-butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,4-butanediol, 1,5-pentanediol, and 1,6-hexanediol; and ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, and diethylene glycol monoethyl ether. Diol monomethyl ether, propylene glycol monoethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, and methyltriethylene glycol, etc.; nitrogen-containing solvents such as 2-pyrrolidone, N-methyl-2-pyrrolidone, and N-ethyl-2-pyrrolidone; alcohols such as methanol, ethanol, n-propanol, isopropanol, n-butanol, 2-butanol, tert-butanol, isobutanol, n-pentanol, 2-pentanol, 3-pentanol, and tert-pentanol, etc.

[0113] Water-soluble organic solvents can be used alone or in combination with two or more.

[0114] From the viewpoint of achieving the effect of this embodiment more effectively and reliably, the content of water-soluble organic solvent is preferably 5% by mass or more and 30% by mass or less relative to the total amount of ink composition.

[0115] 2.6. Other ingredients

[0116] Ink compositions may contain various additives such as cosolvents, viscosity modifiers, pH adjusters, antioxidants, preservatives, mildew inhibitors, corrosion inhibitors, and chelating agents for capturing metal ions that affect dispersion.

[0117] Additives can be used alone or in combination with two or more.

[0118] Examples of preservatives include sodium pentachlorophenolate, sodium 2-pyridinethiol-1-oxide, and 1,2-dibenzothiazol-3-one.

[0119] Commercially available products can also be used as preservatives. Examples of commercially available products include: CRL, BND, GXL, XL-2, and TN from the Proxel (registered trademark) series manufactured by Lonza Japan Co., Ltd. Preservatives can be used alone or in combination with two or more.

[0120] The content of each additive is 0.01% by mass and less than 5.0% by mass relative to the total amount of the ink composition.

[0121] 2.7. Method for manufacturing ink composition

[0122] Ink compositions can be prepared by mixing disperse dyes, water, and other components as needed in any order, and removing impurities and foreign matter by means of filtration as required. As a method of mixing the components, one method involves sequentially adding each component to a container equipped with a stirring device such as a mechanical stirrer or a magnetic stirrer, and then stirring and mixing. As a filtration method, examples include centrifugal filtration and filter filtration.

[0123] In addition, to ensure good dispersion of disperse dyes in ink compositions, a dye dispersant can be prepared in advance and used instead of the disperse dyes in the preparation of the ink composition. The dye dispersant can be obtained, for example, by mixing disperse dyes, water, and the dispersant in any order and dispersing them using a paint mixer or similar device.

[0124] 3. Combination Kit

[0125] The composition kit includes the above-described treatment liquid composition and the above-described ink composition.

[0126] In this embodiment, the treatment liquid composition is pre-attached to the fabric to obtain a fabric with the treatment liquid composition attached. Then, by printing and dyeing the fabric with the treatment liquid composition attached using an ink composition, a printed and dyed product with excellent color development and a good hand feel can be obtained.

[0127] 4. Cloth

[0128] Examples of fabrics used in this embodiment include: natural fibers such as cotton, linen, wool, leather, and silk; synthetic fibers such as polypropylene, polyester, acetate fiber, triacetate fiber, polyamide, acrylic fiber, and polyurethane; and biodegradable fibers such as polylactic acid. Alternatively, blends of these fibers may also be used as fabrics.

[0129] From the perspective of obtaining printed and dyed fabrics with superior color rendering and better hand feel, it is preferable, as a fabric, to contain fibers with hydroxyl groups, and more preferably cotton. Fibers containing hydroxyl groups can be blended fibers.

[0130] Examples of fabric forms include: textiles, woven fabrics, non-woven fabrics, cloth, and clothing and other apparel. Examples of clothing and other apparel include: sewn T-shirts, handkerchiefs, scarves, towels, tote bags, cloth bags, curtains, sheets, bedspreads, and wallpaper, etc.; and fabric before and after cutting, as components before sewing. Examples of their forms include: long rolls, cut to specified sizes, and finished product shapes. It should be noted that any fabric can be coated with the treatment liquid composition, or fabric pre-treated with the treatment liquid composition can be used.

[0131] The basis weight of the fabric is preferably 1.0 oz or more and 10.0 oz or less. If the basis weight of the fabric is within this range, good recording can be achieved.

[0132] As for the fabric, fabric that has been pre-dyed with dye can be used. The treatment liquid composition is unlikely to produce treatment marks, so even pre-dyed fabric can be used. That is, even if the fabric is dyed, printing and dyeing can be carried out with the suppression of treatment marks, thus improving the quality and commercial value of the printed and dyed products compared to the past.

[0133] Examples of dyes used for pre-dyeing fabric include water-soluble dyes such as acid dyes and basic dyes; disperse dyes with dispersants; reactive dyes; and solvent dyes. When using cotton fabric, disperse dyes and reactive dyes suitable for dyeing cotton are preferred, and disperse dyes are more preferred.

[0134] 5. Printing and dyeing methods

[0135] The dyeing method of this embodiment includes a treatment liquid composition adhesion step, which involves adhering the treatment liquid composition to the fabric.

[0136] This process yields a fabric coated with the treatment liquid composition. Furthermore, by adhering the ink composition to this fabric, a printed product with excellent color development and a pleasant hand feel is obtained.

[0137] The printing and dyeing method preferably includes an ink composition adhesion step, which involves adhering the ink composition to the fabric on which the treatment liquid composition has been applied, following the above-described treatment liquid composition adhesion step. It should be noted that the ink composition adhered to the fabric is not particularly limited as long as it contains a disperse dye; for example, the inkjet ink composition described in this embodiment can be used. Furthermore, regarding the ink composition adhesion step, the printing and dyeing method using inkjet technology described later can be referred to.

[0138] The printing and dyeing methods are applicable to various types of fabrics and can produce good results.

[0139] Regarding the amount of the treatment liquid composition adhering to the fabric, it is preferable, for example, to achieve an adhesion of 0.02 g / cm³. 2 Above and 0.5g / cm 2 Hereinafter, it is preferable to allow it to adhere to achieve a concentration of 0.02 g / cm³. 2 Above and 0.3g / cm 2 The following applies. By ensuring that the amount of the treatment liquid composition adheres to the fabric more uniformly, it is possible to further suppress uneven aggregation of the image on the printed material and improve color development.

[0140] Examples of methods for adhering the treatment liquid composition to a fabric include: dip coating, which involves immersing the fabric in the treatment liquid composition; roll coating, which involves applying the treatment liquid composition using a padding roller or roll coater; spray coating, which involves spraying the treatment liquid composition using a spraying device; and inkjet coating, which involves spraying the treatment liquid composition using an inkjet method. These coating methods can be used individually to adhere the treatment liquid composition to the fabric, or a combination of two or more methods can be used to adhere the treatment liquid composition to the fabric.

[0141] In this embodiment, considering the design freedom to increase the amount of the treatment liquid composition adhered, the likelihood of adverse adhesion conditions, and the ability to uniformly adhere the treatment liquid composition to the fabric, it is preferable to use rollers such as a liquid-pressing roller and a roller coater to adhere the treatment liquid composition to the fabric.

[0142] In the dyeing and printing method, it is preferable to include a treatment liquid composition drying step after the treatment liquid composition adhesion step, which involves drying the treatment liquid composition adhered to the fabric. The drying of the treatment liquid composition can be carried out by natural drying, but from the perspective of increasing the amount of treatment liquid composition adhered to the fabric and also increasing the drying speed, it is preferable to accompany it with heated drying.

[0143] The drying temperature is preferably 180°C or lower. This allows for the suppression of fading of the fabric's natural color, even if the fabric has been pre-dyed with dye, due to the sublimation of the dye caused by heating and drying. Furthermore, the lower limit of the heating temperature is set at 100°C or higher, provided that the water or other medium contained in the treatment liquid composition evaporates.

[0144] Examples of heating methods include hot pressing, atmospheric pressure steam heating, high pressure steam heating, and heat fixation. Additionally, examples of heat sources include infrared radiation (lamps).

[0145] In dyeing and printing methods, a washing step may be included as needed after the treatment liquid composition has been applied to the fabric. By including this step in the dyeing and printing method, components contained in the treatment liquid composition that have not adhered to the fabric can be removed.

[0146] 6. Inkjet printing method

[0147] Inkjet printing is a method of applying an ink composition to a fabric coated with a treatment liquid composition using an inkjet printer. By employing inkjet printing, it is possible to easily and reliably form dyed areas with fine patterns. Furthermore, it is applicable to various fabrics and allows for excellent printing results. Even with thick fabrics, inkjet printing can achieve good printing with minimal color difference between the inside and outside. Examples of inkjet printing methods include indirect printing and direct printing methods.

[0148] 6.1. Inkjet recording device

[0149] As an inkjet recording device for printing and dyeing methods, there are no particular limitations as long as it has at least an ink container for holding an ink composition and a recording head connected thereto, and is capable of ejecting the ink composition from the recording head to form an image on a cloth with a processing liquid composition attached or on transfer paper as an intermediate transfer medium. Furthermore, either serial or line-type inkjet recording devices can be used. In these types of inkjet recording devices, a recording head is mounted, and while changing the relative positional relationship between the cloth or transfer paper and the recording head, droplets of the ink composition are intermittently ejected from the nozzle orifice of the recording head at a predetermined time and in a predetermined volume. Thus, the ink composition can be adhered to the cloth or transfer paper to form a predetermined transfer image.

[0150] Typically, in serial inkjet recording devices, the transport direction of the recording medium intersects with the reciprocating direction of the recording head. The relative positional relationship between the recording medium and the recording head changes through the combination of the reciprocating operation of the recording head and the transport operation of the recording medium. Furthermore, in this case, multiple nozzle orifices are usually arranged on the recording head, forming rows of nozzle orifices, or nozzle rows, along the transport direction of the recording medium. Additionally, sometimes multiple nozzle rows are formed on the recording head depending on the type or quantity of the ink composition.

[0151] Furthermore, in line inkjet recording devices, the recording head typically does not reciprocate. The relative position of the recording medium and the recording head changes as the recording medium is transported. In this case, multiple nozzles are usually arranged on the recording head, forming a nozzle array along a direction intersecting the transport direction of the recording medium.

[0152] 6.2. Indirect Printing and Dyeing Recording Method

[0153] The inkjet printing method of this embodiment includes: a treatment liquid composition adhesion step, which applies a treatment liquid composition to a fabric; an ink composition ejected from a recording head and then applied to an intermediate transfer medium; and a transfer step, which transfers the ink composition applied to the intermediate transfer medium to the fabric with the treatment liquid composition attached, obtained from the treatment liquid composition adhesion step. Specifically, in this printing method, an ink composition containing disperse dyes such as sublimable dyes is ejected from a liquid jet head (which serves as a recording head) and applied to an intermediate transfer medium. The surface of the intermediate transfer medium with the ink composition attached and the surface of the fabric with the treatment liquid composition attached are heated while facing each other, causing the disperse dyes contained in the ink composition to transfer to the fabric with the treatment liquid composition attached. In this embodiment, such a printing method is also referred to as an indirect printing recording method. With this printing method, there are no limitations on the shape of the fabric, and printing can be performed well in all cases.

[0154] 6.2.1. Processing liquid composition adhesion step

[0155] The process of applying the treatment liquid composition can be referred to the above-mentioned dyeing method.

[0156] 6.2.2. Spraying process

[0157] In the ejection process, the heated ink composition is ejected from the liquid jet head and adhered to the intermediate transfer medium. Specifically, the driving pressure generating unit causes the ink composition filled in the pressure generating chamber of the liquid jet head to be ejected from the nozzle.

[0158] As an intermediate transfer medium, materials such as ordinary paper and recording media with an ink-retaining layer can be used. These recording media with an ink-retaining layer are, for example, inkjet paper and coated paper. Among these, paper with an ink-retaining layer containing inorganic particles such as silica is more preferred. This allows for the production of an intermediate record in which penetration into the recording surface is suppressed during the drying process of the ink composition adhered to the intermediate transfer medium. Furthermore, with such a medium, disperse dyes are more easily retained on the surface of the recording surface, allowing for more effective sublimation of the disperse dyes in subsequent transfer processes.

[0159] In this process, a variety of ink compositions can be used. This allows for, for example, a wider color gamut to be represented. One of these various ink compositions may be the ink composition of this embodiment, or two or more of them may be the ink composition of this embodiment.

[0160] 6.2.3. Transfer Process

[0161] The transfer process involves heating the intermediate transfer medium, with the side containing the ink composition facing the fabric side containing the treatment liquid composition, to transfer the disperse dye contained in the ink composition onto the fabric. This transfer of disperse dye results in a printed fabric containing the ink composition.

[0162] In this process, heating is performed simply by placing the intermediate transfer medium, to which the ink composition is applied, against the fabric to which the treatment liquid composition is applied. More preferably, heating is performed while the intermediate transfer medium and the fabric to which the treatment liquid composition is applied are in close contact. This allows, for example, the recording of a more vivid image, i.e., dyeing, on the fabric to which the treatment liquid composition is applied.

[0163] Examples of heating methods include: steaming using steam, hot pressing using dry heat, hot melting, HT steaming chamber using superheated steam, and HP steaming chamber using pressurized steam. The fabric to which the ink composition has been applied can be heat-treated immediately or after a predetermined time. From the viewpoint of obtaining printed and dyed materials with excellent rubbing fastness, washing fastness, and color development, and a good hand feel, dry heat is preferred as the heating method.

[0164] The heating temperature is preferably 160°C or higher and 220°C or lower, more preferably 190°C or higher and 210°C or lower. By maintaining the heating temperature within this range, the energy required for transfer printing can be further reduced, resulting in better productivity of the printed materials. Furthermore, the color development of the printed materials tends to be superior.

[0165] The heating time depends on the heating temperature, and is preferably 30 seconds or more and 120 seconds or less, more preferably 40 seconds or more and 90 seconds or less. By keeping the heating time within the above range, the energy required for transfer printing can be further reduced, resulting in better productivity of the printed materials. In addition, the color development of the printed materials tends to be better.

[0166] The preferred adhesion amount of the ink composition applied to the fabric by transfer is, for example, 1.5 mg / cm² per unit area of ​​the fabric. 2 Above and 6.0 mg / cm 2 The following applies. By ensuring that the amount of ink composition adhered to the fabric is within the above-mentioned range, the color development of images formed through printing and dyeing is improved, and the drying properties of the ink adhered to the fabric are ensured, thus reducing the occurrence of ink bleeding in images, etc.

[0167] 6.2.4. Other processes

[0168] This method may include intermediate processing steps and post-processing steps as needed.

[0169] As an intermediate processing step, an example is the process of preheating the cloth to which the processing liquid composition is applied.

[0170] As a post-processing step, examples include the process of cleaning printed and dyed materials.

[0171] 6.2. Direct Printing and Dyeing Recording Method

[0172] The inkjet printing method may also include: a treatment liquid composition adhesion step that applies the treatment liquid composition to a fabric, and an ink composition adhesion step that applies the ink composition to the fabric coated with the treatment liquid composition obtained from the treatment liquid composition adhesion step after the ink composition is ejected from the recording head. In this embodiment, such a printing method is also referred to as a direct printing recording method. With this printing method, it is possible to easily and reliably form dyed areas with fine patterns. In addition, since it does not require the use of printing plates such as intermediate transfer media, it has excellent on-demand capability and can better handle small-batch production and multi-variety production.

[0173] 6.2.1. Process for obtaining a cloth with the treatment liquid composition attached.

[0174] Regarding the process of applying the treatment liquid composition, the above-mentioned printing and dyeing method can be referred to.

[0175] 6.2.2. Ink Composition Adhesion Process

[0176] In the ink composition adhesion process, the ink composition is adhered to a cloth on which the treatment liquid composition has been applied. Additionally, the ink composition adhesion process may include a step of further applying the ink composition to the area where it has already been applied.

[0177] In the ink composition adhesion process, the maximum adhesion amount on the fabric is preferably 50 mg / cm³. 2 Above and 200mg / cm 2 The following is more preferably 80 mg / cm³ 2 Above and 150mg / cm 2 Below. When the maximum adhesion amount is within the above range, the color development becomes better. In addition, the rubbing fastness of the image also becomes excellent, and the tendency for uneven aggregation is not obvious.

[0178] In this process, heating is preferably performed when applying the ink composition to the fabric with the treatment liquid composition attached. This allows, for example, a more vivid image to be recorded on the fabric with the treatment liquid composition attached, i.e., dyeing.

[0179] Examples of heating methods include hot pressing, atmospheric pressure steam heating, high pressure steam heating, and heat fixation. Examples of heat sources include hot air, infrared radiation, and microwaves.

[0180] During heating, the surface temperature of the heated fabric is preferably above 60°C and below 180°C. Maintaining a surface temperature within this range reduces damage to the inkjet head and the fabric, and allows the ink to easily and evenly wet and spread across the fabric, penetrating into it. It should be noted that the surface temperature can be measured, for example, using a non-contact thermometer (trade name "IT2-80", manufactured by Keyence Corporation).

[0181] The heating time is preferably set to between 5 seconds and 5 minutes. By keeping the heating time within this range, damage to the inkjet head or the fabric can be reduced, and the fabric can be heated sufficiently.

[0182] 6.2.3. Other processes

[0183] This method may include intermediate and post-processing steps as needed. For details regarding these steps, refer to the other steps in the aforementioned indirect dyeing and printing recording method.

[0184] Example

[0185] The present invention will now be described in more detail using examples and comparative examples. The present invention is not limited to the following examples.

[0186] 1. Synthesis of polyester resin

[0187] [Polyester Resin A~I]

[0188] First, a mixture comprising phthalic acid and (poly)alkylene glycol was prepared in the manner described in Table 1. This mixture was placed in an autoclave and heated at 220°C for 4 hours to carry out an esterification reaction. Next, tetrabutyl titanate was added to the autoclave as a catalyst, and the temperature was raised to 230°C while the pressure was slowly reduced, reaching 13 Pa after 1.5 hours. The polycondensation reaction was further continued under these conditions, and after 4 hours, the autoclave was brought to atmospheric pressure using nitrogen and cooled to room temperature, thereby synthesizing polyester resins A to I.

[0189] It should be noted that the values ​​of the proportions of each component in Table 1 are expressed in moles. "Tg" for polyester resin indicates the glass transition temperature (°C). "Isophthalic acid / terephthalic acid" indicates the molar ratio of the content of isophthalic acid-derived structural units in the polyester resin to the content of terephthalic acid-derived structural units.

[0190] [Table 1]

[0191]

[0192] 2. Preparation of dyeing and printing treatment solution composition

[0193] [Examples 1-11 and Comparative Examples 1-5]

[0194] Each component was placed in a mixing tank in the manner described in Tables 2 and 3, mixed and stirred, and then filtered using a 5 μm membrane filter to obtain the respective treatment liquid compositions. It should be noted that no treatment liquid composition was prepared in Comparative Example 1.

[0195] The values ​​for the amounts of each component in Tables 2 and 3 are expressed as mass %. The amount of crosslinking agent is expressed as the amount (mass %) calculated based on the solid component content.

[0196] In addition, the components shown in Tables 2 and 3 are described below.

[0197] (Polyester resin)

[0198] • A~I……The polyester resins A~I obtained by synthesis mentioned above

[0199] (Acid or diol)

[0200] Malic acid

[0201] ·PEG400……PEG#400 (trade name, Lion Corporation, polyethylene glycol)

[0202] (Cross-linking agent)

[0203] WS-500……Epocros (registered trademark) WS-500 (trade name, Nippon Shokubai Co., Ltd., a compound containing an oxazoline group, solid content: 39% by mass)

[0204] ·#220……Fixer#220 (trade name, Murayama Chemical Research Institute Co., Ltd., a compound containing isocyanate groups with an isocyanurate skeleton in its structure, solid content: 40% by mass)

[0205] [Table 2]

[0206] [Table 3]

[0207]

[0208] 3. Preparation of inkjet ink compositions

[0209] [Cyan ink]

[0210] The components were placed in a mixing container in the manner described in Table 4 and mixed and stirred for 2 hours using a stirrer. Then, the mixture was filtered using a membrane filter with a pore size of 1 μm, thereby obtaining cyan ink (hereinafter also referred to as "C ink") as an ink composition.

[0211] It should be noted that the values ​​for each component in Table 4 represent mass percent. "C ink" indicates that it is a cyan ink.

[0212] In addition, the components shown in Table 4 are described below.

[0213] (Dye dispersant)

[0214] • Disperse Blue 359: CI Disperse Blue 359 (commercially available)

[0215] (Water-soluble organic solvent)

[0216] ·Propylene glycol

[0217] ·glycerin

[0218] ·Methyltriethylene glycol

[0219] (surfactant)

[0220] • BYK(R)-348: BYK (registered trademark)-348 (trade name, silicone surfactant, manufactured by BYK Chemicals Japan Co., Ltd.)

[0221] [Table 4]

[0222]

[0223] 4. Production of printed and dyed materials

[0224] 4.1. Preparation of the cloth with the treatment liquid composition attached

[0225] (Examples 1-11 and Comparative Examples 2-5)

[0226] The treatment liquid compositions of Examples 1-11 and Comparative Examples 2-5 were used to adhere the treatment liquid compositions to a fabric. Specifically, fabrics with the treatment liquid compositions attached were obtained in the following manner.

[0227] A white cotton fabric (trade name, manufactured by Toyobo Co., Ltd.) was impregnated with a treatment solution composition. The treatment solution composition was then applied to the fabric using a padding roller to achieve a padding rate of 80%. The fabric was then dried at 140°C for 2 minutes and then at 170°C for 1 minute to obtain fabrics coated with the treatment solution composition.

[0228] It should be noted that the dyeing rate (S) is calculated using the following formula (1).

[0229] S(%)=[(AB) / B]×100……(1)

[0230] It should be noted that in formula (1), S represents the dyeing rate (%), A represents the mass of the fabric with the treatment liquid composition attached, and B represents the mass of the fabric before the treatment liquid composition was attached.

[0231] 4.2. Preparation of intermediate recording media with ink composition attached

[0232] (Examples 1-11 and Comparative Examples 1-5)

[0233] Ink C was filled into the ink cartridge of the PX-G930 inkjet printer (trade name, manufactured by Seiko Epson Corporation). Then, on the coated surface of coated paper (TRANSJET Sportline 1254 (trade name), manufactured by Chem Paper Co., Ltd.) used as the intermediate transfer medium, ink was injected at a resolution of 720 dpi × 720 dpi with an ink ejection rate of 12 mg / inch at 100% duty. 2 Under certain conditions, ink adheres, thereby forming an image with a fully coated pattern. Thus, an intermediate recording medium with the ink composition adhered is obtained.

[0234] 4.3. Printing and Dyeing

[0235] (Examples 1-11 and Comparative Examples 2-5)

[0236] Using a hot press TP-608M (trade name, manufactured by Taiyo Seiki Co., Ltd.), at a temperature of 200°C and a pressure of 4.2 N / cm²... 3 Under the condition of 60 seconds, the image-forming surface of the intermediate recording medium with ink composition attached above is heat-transferred onto the cloth (cotton cloth) with processing liquid composition attached above using a hot press, thereby obtaining printed fabrics as cloth with C ink attached.

[0237] (Comparative Example 1)

[0238] Using a hot press TP-608M (trade name, manufactured by Taiyo Seiki Co., Ltd.), at a temperature of 200°C and a pressure of 4.2 N / cm²... 3 Under conditions of 60 seconds, the image-forming surface of the intermediate recording medium with the ink composition attached above is heat-transferred onto white cotton fabric #4000 (trade name, manufactured by Toyobo Co., Ltd.), thereby obtaining a printed fabric with C ink attached.

[0239] 5. Evaluation of printed and dyed products

[0240] 5.1. Color Developing Properties

[0241] The printed and dyed products of Examples 1-11 and Comparative Examples 1-5 obtained by printing and dyeing were placed at room temperature of 25°C for 3 days. Then, the color development concentration (OD value) of each printed and dyed product to C ink was measured using a fluorescence spectrophotometer FD-7 (trade name, manufactured by Konica Minolta Co., Ltd.) under the following measurement conditions and at room temperature of 25°C.

[0242] (Measurement conditions)

[0243] • Observation light source: D65

[0244] • Observational field of view: 2°

[0245] Status: T

[0246] • Polarizing filter: Not installed

[0247] Then, the OD values ​​of the printed and dyed products of Examples 1-11 and Comparative Examples 2-5 were compared with the OD value of the printed and dyed product of Comparative Example 1, and the color development of C ink was evaluated according to the following evaluation criteria. These results are shown in Tables 5 and 6.

[0248] (Evaluation Criteria)

[0249] AA: The OD value is more than 220% compared with the OD value of the dyed and printed material of Comparative Example 1.

[0250] A: Compared with the OD value of the dyed and printed material of Comparative Example 1, the OD value is more than 150% and less than 220%.

[0251] B: Compared with the OD value of the printed and dyed material of Comparative Example 1, the OD value is 100% or more and less than 150%.

[0252] C: The OD value is less than 100% compared to the OD value of the dyed and printed material in Comparative Example 1.

[0253] 5.2. Feel

[0254] The hand feel of the dyed and printed products of Examples 1-11 and Comparative Examples 1-5 obtained by dyeing and printing was evaluated through sensory tests. Specifically, the hand feel of the obtained dyed and printed products was evaluated by the judges according to the following criteria. These results are shown in Tables 5 and 6.

[0255] (Evaluation Criteria)

[0256] A: The printed and dyed material is soft, and I did not feel any stiffness to the touch.

[0257] B: The printed material is slightly stiff, and you can feel a slight stiffness to the touch.

[0258] C: The printed and dyed material is stiff, and you can feel a noticeable stiffness to the touch.

[0259] 5.3. Scratch resistance

[0260] The printed and dyed products of Examples 1-11 and Comparative Examples 1-5 obtained by printing and dyeing were placed at room temperature (25°C) for 1 hour. Then, the scratch resistance of the recording surface of the printed and dyed products was evaluated using an AB-301 vibration-type rubbing fastness tester (trade name, manufactured by Tester Sangyo Co., Ltd.) according to JISK 5701:2000. Specifically, cotton cloth was placed on the recording surface, and a 200g load was applied for 20 rubs. The peeling of the recording surface and the transfer of ink to the cotton cloth after rubbing were visually confirmed, and the scratch resistance was evaluated according to the following evaluation criteria. These results are shown in Tables 5 and 6.

[0261] (Evaluation Criteria)

[0262] A: No color transfer or peeling was observed.

[0263] B: Some color transfer and peeling were observed.

[0264] C: Color transfer and peeling are clearly observed.

[0265] 5.4. Wash fastness

[0266] For the dyed and printed fabrics of Examples 1-11 and Comparative Examples 1-5 obtained by dyeing and printing as described above, a washing fastness test was conducted according to Method A-2 of JIS L0844 (Test Method for Colorfastness to Washing). Specifically, the dyed and printed fabrics of Examples 1-11 and Comparative Examples 1-5 obtained by dyeing and printing were washed, rinsed, dehydrated, and dried using a general household detergent (without optical brightener) and a household washing machine (ZABOON, manufactured by Toshiba Corporation). The color change / fading of the dyed and printed fabrics was then judged. Regarding color change / fading, the degree of fading was evaluated according to the color change / fading grayscale grades of JIS L0804:2004 (ISO 105-C10(B2)) and the following evaluation criteria. These results are shown in Tables 5 and 6.

[0267] (Evaluation Criteria)

[0268] A: Wash fastness is grade 3 or above.

[0269] B: Wash fastness is grade 2 or higher but less than grade 3.

[0270] C: Wash fastness is less than level 2.

[0271] 5.5. Color change / fading property

[0272] The printed and dyed products of Examples 1-11 and Comparative Examples 1-5 obtained by the above-described printing and dyeing process were placed at room temperature of 25°C for 1 hour. Then, the color development concentration (OD value) of each printed and dyed product for C ink was measured using a fluorescence spectrophotometer FD-7 (trade name, manufactured by Konica Minolta Co., Ltd.) under the following measurement conditions and at room temperature of 25°C. Then, each printed and dyed product was placed at room temperature of 25°C for 3 days, and the color development concentration (OD value) of each printed and dyed product was measured under the same conditions.

[0273] (Measurement conditions)

[0274] • Observation light source: D65

[0275] • Observational field of view: 2°

[0276] Status: T

[0277] • Polarizing filter: Not installed

[0278] The OD values ​​of the dyed and printed materials immediately after printing and dyeing were compared with those of the dyed and printed materials after being left for 3 days. The color change / fading properties of the dyed and printed materials of Examples 1-11 and Comparative Examples 1-5 were evaluated according to the following evaluation criteria. These results are shown in Tables 5 and 6.

[0279] (Evaluation Criteria)

[0280] A: The rate of change of the OD value is less than 5%.

[0281] B: The rate of change of OD value is greater than 5% but less than 10%.

[0282] C: The rate of change of OD value is more than 10%.

[0283] [Table 5]

[0284] [Table 6]

[0285]

[0286] As shown in Tables 5 and 6, it can be seen that by attaching the treatment liquid composition of this embodiment to the fabric and then dyeing the fabric with the treatment liquid composition attached, a dyed product with excellent color development and good hand feel can be obtained.

[0287] A comparison of Examples 1, 4, and 6 with Examples 2, 3, and 5 shows that when a polyester resin with a glass transition temperature of 50°C or higher is used, a dyed or printed material with superior color change / fading properties is obtained.

[0288] According to the comparison between Examples 1, 4 and 11 and Example 2, when a polyester resin with a molar ratio of the content of structural units derived from isophthalic acid to the content of structural units derived from terephthalic acid is in the range of 0.5 or more and 3.0 or less, a dyed product with better color development and colorfastness is obtained.

[0289] As can be seen from the comparison between Examples 7 and 8 and Example 1, when a crosslinking agent is used, a dyed product with better color development and scratch resistance is obtained.

Claims

1. A dyeing and printing treatment liquid composition, characterized by comprising: A treating liquid composition for use in attaching to a cloth, The treating liquid composition contains a polyester resin and water, The polyester resin has a structural unit derived from an aromatic compound and a structural unit derived from a non-aromatic compound, The aromatic compound contains phthalic acid, The non-aromatic compound contains a (poly)alkylene glycol, The content of the structural unit derived from the phthalic acid is 15 mol% or more and 85 mol% or less with respect to 100 mol% of the polyester resin, The content of the structural unit derived from the (poly)alkylene glycol is 15 mol% or more and 85 mol% or less with respect to 100 mol% of the polyester resin, The glass transition temperature of the polyester resin is 50°C or more and 150°C or less.

2. The treating liquid composition for dyeing according to claim 1, wherein The (poly)alkylene glycol is one or more selected from the group consisting of ethylene glycol, neopentyl glycol, and diethylene glycol.

3. The treating liquid composition for dyeing according to claim 1, wherein The cloth contains a fiber having a hydroxyl group.

4. The treating liquid composition for dyeing according to claim 1, wherein The structural unit derived from the phthalic acid contains a structural unit derived from terephthalic acid and a structural unit derived from isophthalic acid, The molar ratio of the content of the structural unit derived from the isophthalic acid to the content of the structural unit derived from the terephthalic acid is 0.5 or more and 3.0 or less.

5. The treating liquid composition for dyeing according to claim 1, wherein The treating liquid composition further contains a crosslinking agent.

6. The treating liquid composition for dyeing according to claim 5, wherein The crosslinking agent contains an isocyanate group-containing compound having an isocyanurate skeleton in the structure.

7. The treating liquid composition for dyeing according to claim 1, wherein The content of the polyester resin is 0.05 mass% or more and 20 mass% or less with respect to the total amount of the treating liquid composition.

8. The treating liquid composition for dyeing according to claim 1, wherein The treating liquid composition is used for attaching to a cloth before dyeing the cloth.

9. A composition set, characterized by The treating liquid composition for dyeing according to any one of claims 1 to 8 and an inkjet ink composition, The inkjet ink composition contains a disperse dye and water.

10. A dyeing method, characterized by A treating liquid composition attaching step of attaching the treating liquid composition for dyeing according to any one of claims 1 to 8 to a cloth.

11. An inkjet printing method, characterized by, A process including A treating liquid composition attaching step of attaching the treating liquid composition for dyeing possessed by the composition set according to claim 9 to a cloth, An ejection step of causing the inkjet ink composition possessed by the composition set according to claim 9 to be attached to an intermediate transfer medium after being ejected from a recording head, and A transfer step of transferring the inkjet ink composition attached to the intermediate transfer medium to the cloth to which the treating liquid composition for dyeing is attached.

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