JP2011016307A - Fiber structure having color layer, and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fiber structure having a color layer colored by a colorant composition containing a binder polymer and pigment, keeping a feel and having excellent fastness, a coating composition used for manufacturing the structure, and a method for manufacturing the fiber structure using the coating composition.SOLUTION: In the fiber structure having the color layer colored by the colorant composition containing the binder polymer and the pigment, a coating layer formed of the coating composition containing a coating polymer and a reinforcing agent is provided on the surface of the color layer. The coating composition contains the coating polymer and the reinforcing agent. The coating composition is applied to the surface of the fiber structure having the color layer colored by the colorant composition containing the binder polymer and the pigment.

Description

  The present invention uses a fibrous structure having a colored layer colored by a colorant composition containing a binder polymer and a pigment, a coating composition suitable for use in the production of the fibrous structure, and the coating composition. The present invention relates to a method for manufacturing a fiber structure.

In general, it is known that a fabric colored with a colorant composition containing a binder resin and a pigment is inferior in fastness and hard to the fabric than a fabric obtained by dye dyeing. The properties of the two are generally contradictory, and when one performance is improved, the other performance tends to deteriorate.
In order to solve these problems, a fabric treated with a specific binder resin is treated with a composition comprising a specific polysiloxane (Patent Document 1) or a composition containing a crosslinking agent. A method (Patent Document 2) is proposed. A fiber structure (Patent Document 3) having a colored layer colored with a colorant composition containing a binder polymer and a pigment has also been proposed.
However, even these methods are still not sufficiently effective.

  A method of pigmenting by an ink jet method has also been proposed. Ink jet method requires ink to be ejected from the nozzles, but in order to develop good and stable ejection properties, the viscosity of the ink must be set to a certain value or less, in order to avoid clogging of the nozzles. However, the additive that can be blended in the ink is limited. The binder component that plays a role of increasing the fastness has a property of increasing the viscosity of the ink and easily clogging the nozzle. For this reason, the types of binder components that can be added are limited, and the amount of the binder component that can be added is also limited. As a result, the fiber structure colored by the inkjet method is more robust than those colored by other methods. There is a problem of being inferior.

JP 58-18485 JP-A-5-230778 JP 2006-299018

Accordingly, an object of the present invention is to provide a fiber structure having a colored layer colored with a colorant composition containing a binder polymer and a pigment, the texture being maintained, and having excellent fastness It is to be.
Another object of the present invention is to provide a coating composition suitable for use in the production of the fiber structure.
Still another object of the present invention is to provide a method for producing a fiber structure using the coating composition.
Another object of the present invention is to provide a method for performing pigment coloring by an inkjet method, which has solved the conventional problems in coloring by the inkjet method.

The present invention provides the following fiber structure, coating composition, and method for producing the fiber structure.
1. A fibrous structure having a colored layer colored with a colorant composition containing a binder polymer and a pigment, and having a coating layer formed on the surface of the colored layer with a coating composition containing a coating polymer and a reinforcing agent; Characteristic fiber structure.
2. 2. The fiber structure according to 1 above, wherein the coating polymer contains the same kind of polymer as the binder polymer constituting the colored layer.
3. 3. The fiber structure according to the above 1 or 2, wherein at least one of the colorant composition and the coating composition contains a polyurethane water dispersion having an elongation of 200% or more.
4). 4. The fiber structure according to any one of 1 to 3 above, wherein the coating composition contains a modifier.
5. 5. The fiber structure according to 4 above, wherein the modifier is a silicone-based aqueous dispersion.
6). 6. The fiber structure according to any one of 1 to 5 above, wherein the coating composition contains a reinforcing aid.
7). A coating composition used for coating the surface of a fiber structure having a colored layer colored with a colorant composition containing a binder polymer and a pigment, the coating composition comprising a coating polymer and a reinforcing agent .
8). 8. The coating composition as described in 7 above, wherein the coating polymer contains the same kind of polymer as the binder polymer constituting the colored layer.
9. 9. The coating composition as described in 7 or 8 above, wherein the coating composition comprises a polyurethane water dispersion having an elongation of 200% or more.
10. 10. The coating composition according to any one of 7 to 9, wherein the coating composition contains a modifier.
11. 11. The coating composition as described in 10 above, wherein the modifier is a silicone-based aqueous dispersion.
12 The coating composition according to any one of 7 to 11 above, wherein the coating composition contains a reinforcing aid.
13. 13. A fiber structure, wherein the coating composition according to any one of 7 to 12 above is applied to the surface of a fiber structure having a colored layer colored with a colorant composition containing a binder polymer and a pigment. Manufacturing method.

The fiber structure having a colored layer, which has been treated with the coating composition of the present invention, is excellent in friction fastness without damaging the texture.
In addition, when coloring is performed by an ink-jet coloring method that tends to lower the fastness to friction as compared with other coloring methods, the texture is not impaired and a fiber structure having excellent fastness to friction is obtained. be able to.

Hereinafter, embodiments of the present invention will be described in detail.
In the present invention, the “fiber structure” means yarn, fabric, woven fabric, knitted fabric, non-woven fabric, paper, board, leather, and other sheet-like products made of natural fibers, synthetic fibers, semi-synthetic fibers, or a mixture thereof. , And products made from them.

  In the colorant composition used in the present invention, the binder polymer is used for the purpose of fixing the pigment to the fabric. Such binder polymers include commonly available polymers such as acrylic polymers, acrylic styrene copolymers, acrylic urethane copolymers, acrylic styrene copolymers, acrylic maleic acid copolymers, acrylic butadiene copolymers, vinyl acryl acetate copolymers, ethylene vinyl acetate copolymers, polyurethanes. , Polyolefin, SBR, NBR and the like.

  The binder polymer used in the present invention is preferably one that can be dispersed in water and an aqueous solvent, preferably as particles having an average particle size of 200 nm or less, and more preferably 100 nm or less. If a binder polymer with an average particle diameter exceeding 200 nm is present, the coating layer formed from the binder polymer will be thickened, the texture of the fiber structure will be reduced, and the binder strength of the pigment particles will be reduced, resulting in reduced friction fastness. Tend to. When binder particles having an average particle diameter of less than 10 nm are present, the composition itself tends to be unstable due to aggregation of the particles. Therefore, the average particle diameter of the binder particles used in the present invention is preferably 200 to 10 nm, and more preferably 100 to 20 nm. In particular, when the average particle size of the binder polymer particles is adjusted to 100 nm to 10 nm, the coating layer formed of the binder polymer can be microcoated, the texture of the fiber structure can be maintained, and the binder strength of the pigment particles is also increased. Improved and preferable.

The binder polymer used in the present invention preferably has a glass transition temperature of preferably 10 ° C. or lower, more preferably 5 ° C. or lower. When the glass transition temperature of the binder polymer exceeds 10 ° C., when the fiber structure is subjected to the coloring method of the present invention under a working environment at room temperature (20 ° C. ± 10 ° C.), the coating of the binder polymer is insufficient, A large number of voids are formed in the coating layer, and these voids remain even after heating, and the strength of the binder polymer coating layer tends to decrease. If the glass transition temperature of the binder polymer is 10 ° C. or lower, a uniform film can be formed at room temperature, and strength reduction can be suppressed.
The binder polymer used for this invention can be used with forms, such as an emulsion and a dispersion.
The content of the binder polymer particles in the colorant composition of the present invention is preferably 0.5 to 20% by mass, more preferably 1 to 10% by mass, based on the entire composition. If the amount is less than 0.5% by mass, the binder ability is insufficient and the friction fastness tends to decrease, and if it exceeds 20% by mass, the texture of the fiber itself tends to be impaired.

In the colorant composition of the present invention, the pigment is mainly used as a coloring material, but some have other effects (antibacterial properties, UV cut). Conventionally known inorganic pigments and organic pigments can be used. For example, all inorganic and organic pigments dispersed in water and aqueous solvents and having a chromatic color can be mentioned. Moreover, the pseudo pigment etc. which colored the resin emulsion with the dye can be used.
Examples of inorganic pigments include metal powders and metal-containing compound powders, and examples of organic pigments include azo lake pigments, insoluble azo pigments, chelate azo pigments, phthalocyanine pigments, perylene and perinone pigments, anthraquinone pigments, and quinacridone. Examples thereof include pigments, dye lake pigments, nitro pigments, and nitroso pigments.

  More specifically, carbon black such as channel black, furnace black, thermal black, titanium black, iron black, graphite, copper chrome black, cobalt black, brown chrome, chromium oxide, cobalt blue, iron oxide yellow, viridian, cadmium yellow , Vermilion, cadmium red, yellow lead, molybdate orange, zinc chromate, strontium chromate, ultramarine, barite powder, bitumen, manganese violet, aluminum powder, brass powder and other inorganic pigments, aniline black, perylene black, cyanine black, resin A pseudo pigment obtained by coloring an emulsion with a black dye, C.I. I. Pigment Blue 1, Same Blue 15, Same Blue 17, Same Blue 27, Same Red 5, Same Red 22, Same Red 38, Same Red 48, Same Red 49, Same Red 53, Same Red 57, Same Red 81, Same Red 104, Red 146, Red 245, Yellow 1, Yellow 3, Yellow 4, Yellow 12, Yellow 13, Yellow 14, Yellow 17, Yellow 34, Yellow 55, Yellow 74, Yellow 83, Yellow 95, Yellow 166, Yellow 167, Orange 5, Orange 13, Orange 16, Violet 1, Violet 3, Violet 19, Violet 23, Violet 50, Green 7 and the like. In the present invention, the above pigments can be used alone or in admixture of two or more.

The average particle diameter of the pigment particles in the colorant composition of the present invention is preferably 200 nm or less, more preferably 100 nm or less. When pigment particles having an average particle diameter exceeding 200 nm are present, the irregularities on the surface of the fiber structure increase, the frictional resistance increases, and the friction fastness tends to decrease. Further, when pigment particles having an average particle diameter of less than 10 nm are present, the color density, light resistance and the like tend to decrease. Therefore, the average particle diameter of the pigment particles used in the present invention is preferably 200 to 10 nm, and more preferably 100 to 20 nm.
As a means for adjusting the average particle diameter of the pigment to 200 nm or less, water and an aqueous solvent, and if necessary, a wetting agent, a wetting agent, a dispersion stabilizer, etc. are added to the pigment, and a commonly used shearing force-type dispersion is used. The method of mixing using a machine is mentioned. For example, stirring type dissolver, homomixer, Henschel mixer, media type ball mill, sand mill, attritor, paint shaker, medialess type 3 roll, 5 roll, jet mill, water jet mill, ultrasonic disperser, etc. By using it for a predetermined time, pigment particles having a target average particle diameter can be obtained.
Further, after pulverizing and dispersing the pigment with a disperser, if necessary, coarse particles and fine particles are removed, whereby pigment particles having a desired average particle diameter can be obtained more reliably. Examples of the removal method of the non-target particles include a static sedimentation method, a centrifugal sedimentation method, and a filter removal method.

The pigment particles used in the present invention are fine and may reaggregate due to external factors, color processing, and the like, and may reduce the target performance. In order to prevent this reaggregation, the surface of the pigment particles is preferably subjected to a hydrophilic treatment.
As such a hydrophilic treatment, for example, pigment particles are treated with a dispersant containing a surfactant or a water-soluble polymer to give a hydrophilic group such as a hydroxyl group, a carboxyl group, or an amino group to the surface of the particle. A method for improving the property. Examples of surfactants include anionic surfactants such as alkyl carboxylic acid esters, alkyl sulfate esters, and alkyl phosphate esters, cationic surfactants such as aliphatic ammonium salts, alkyl ethers, fatty acid ester ethers, sorbitan fatty acid esters, and the like. Nonionic surfactants can be mentioned. Examples of water-soluble polymers include polyvinylpyrrolidone, polyvinyl alcohol, acrylics (for example, low molecular weight polyacrylic acid, polymethacrylic acid, etc.), polymaleic acid, acrylic acid, methacrylic acid, etc. and styrene copolymers, polyamide, and rosin-modified malein. Examples thereof include polymer dispersants such as acids.

Further, the surface of the pigment can be subjected to a hydrophilic treatment by using a topochemical method such as an alkali treatment with sodium hydroxide or the like, a treatment with an oxidizing agent such as chromic acid, or a low temperature plasma treatment.
Among the hydrophilic groups that can be imparted by hydrophilic treatment, a hydroxyl group and a carboxyl group are particularly preferable in that a crosslinking reaction with a binder polymer and a crosslinking agent can be expected when the fiber structure is colored, and an effect of improving fastness can be expected.
The content of the pigment particles in the colorant composition of the present invention is preferably 0.1 to 15% by mass, more preferably 0.5 to 10% by mass with respect to the entire composition. If it is less than 0.1% by mass, good color development tends not to be obtained, and if it exceeds 15% by mass, the friction fastness tends to decrease.

The present invention is characterized in that a coating layer containing a coating polymer and a reinforcing agent is provided on the surface of a colored layer of a fiber structure having a colored layer colored with a colorant composition containing a binder polymer and a pigment. It is a fiber structure.
In the present invention, the coating polymer used for forming the coating layer is intended to improve the fastness of the colored fiber structure. Therefore, the polymer exemplified above as the binder polymer used in the colorant composition can basically be used as the coating polymer. The binder polymer and the coating polymer may be the same or different. However, when the binder polymer and the coating polymer are the same or similar (hereinafter referred to as “same type”), the affinity at the interface between the two polymers is good, and the fastness can be improved efficiently. The binder polymer and the coating polymer are preferably the same type.

  Here, “same kind” means polymers having good affinity at the interface between the two polymers. Accordingly, cases where the chemical structures and the like of both polymers are the same or similar as well as cases where they differ from each other are included. Examples thereof include polymers having the same repeating unit (for example, polyurethanes and polyesters). In the case of a copolymer, among the monomer components constituting the copolymer, copolymers having the same monomer component with the largest proportion in the composition can be mentioned. Further, when the binder polymer or the coating polymer is a mixture of a plurality of types of polymers, the polymers having the same amount of the most blended amount can be mentioned.

In the present invention, it is preferable that at least one of the colorant composition and the coating composition contains a polyurethane water dispersion having an elongation of 200% or more. When a colorant composition and / or a coating composition containing a polyurethane water dispersion is used, the resulting fiber structure has an excellent balance between fastness and texture, particularly when the elongation is 200% or more. It is good. When both the colorant composition and the coating composition contain a polyurethane water dispersion having an elongation of 200% or more, the balance between fastness and texture is particularly excellent.
A solution type of polyurethane can also be used, but the fastness of the obtained fiber structure is better when an aqueous dispersion is used. Specific examples of the aqueous dispersion include forms such as emulsion, microemulsion, colloidal dispersion, hydrosol and the like.
The “elongation” is a value measured by a method defined in JISK7127, and represents a ratio of the film stretched after the aqueous dispersion was dried to form a film.
The content of the coating polymer in the coating composition of the present invention is preferably 0.5 to 40% by mass, more preferably 1.0 to 20% by mass, based on the entire composition. If the amount is less than 0.5% by mass, the binder ability is insufficient and the friction fastness tends to decrease, and if it exceeds 40% by mass, the texture of the fiber itself tends to be impaired.

The reinforcing agent used in the coating composition of the present invention improves the fastness of the fiber structure by interacting with the coating polymer, and is not particularly limited as long as it is a compound having a property of crosslinking with the coating polymer. Examples of the crosslinking reaction that can be used include a dehydration condensation reaction between a methylol group and a hydroxyl group, an epoxy ring-opening polymerization reaction between a glycidyl group and a hydroxyl group, a urethane reaction between an isocyanate group, a hydroxyl group, and a carboxyl group, and an amide ester of an oxazoline group and a carboxyl group. Reaction, carbamoylamide reaction and isourea reaction of carbodiimide group with hydroxyl group and carboxyl group, condensation dehydration reaction of silanol group and hydroxyl group, dehydration condensation reaction with metal alkoxide group and hydroxyl group, melamine condensation reaction of polyfunctional methylol group and hydroxyl group, diacetone Reduction dehydration reaction with acrylamide, hydrazide and hydroxyl group is used. When these aqueous crosslinking agents are blended in the colorant composition and heated, the hydroxyl groups and carboxyl groups of the pigment and coating polymer are crosslinked to form a three-dimensional network structure, and the fastness is improved. Specific examples include isocyanate compounds, ethyleneimine compounds, melamine compounds, glyoxal compounds, epoxy compounds, and carbodiimides. Among these, carbodiimide is preferable from the viewpoint of shelf life and safety.
The active ingredient content of the reinforcing agent in the coating composition of the present invention is preferably 0.1 to 20% by mass, more preferably 0.3 to 10% by mass, based on the entire composition. If the amount is less than 0.1% by mass, the ability to reinforce mutual bonding between the cloth, the binder polymer, and the coating polymer tends to be insufficient, and the friction fastness tends to decrease. If the amount exceeds 20% by mass, the texture tends to be impaired. .

It is preferable that the coating composition of this invention contains the modifier which reduces the friction coefficient of the obtained fiber structure. Specific examples of the modifier include a silicone-based aqueous dispersion. Preferred silicone-based aqueous dispersions include polydimethylsiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, amino-modified silicone, epoxy-modified silicone, alkyl-modified silicone, carboxyl-modified silicone, quaternary ammonium salt-modified silicone, phenol-modified Examples include various modified silicones such as silicone, fluorine-modified silicone, and polyether-modified silicone.
Among these, an epoxy-modified silicone-based aqueous dispersion is preferable because it can be expected to have a crosslinking effect with a binder without causing yellowing.
Moreover, a fluorine-type water dispersion is also mentioned as modifiers other than the above. For example, an aqueous dispersion of PTFE improves the sliding of the fiber structure surface and increases the fastness to dry friction.
The active ingredient content of the modifier in the coating composition of the present invention is preferably 0.3 to 30% by mass, more preferably 0.5 to 20% by mass, more preferably 1. It is 0-10 mass%. If the amount is less than 0.1% by mass, the effect of reducing the friction coefficient is weak and the effect of improving the fastness to friction tends to be poor. If the amount exceeds 30% by mass, the degree of freedom in blending other raw materials tends to be hindered.

The coating composition of the present invention preferably contains a reinforcing aid that improves the crosslinking efficiency of the reinforcing agent. The reinforcing aid that can be used depends on the combination with the reinforcing agent, but those having either a hydroxyl group, a carboxyl group or an ester group in the molecular skeleton are preferred. As long as it is such a compound, either an aqueous solution or an aqueous dispersion can be used. Specific examples include an acrylic polymer aqueous dispersion and a polyester aqueous dispersion.
The polyester used in the polyester aqueous dispersion includes crystalline and non-crystalline ones. Among these, crystalline ones are preferable because tackiness does not occur even below the glass transition point.
The content of the active ingredient of the reinforcing aid in the coating composition of the present invention is preferably 0.3 to 30% by mass, more preferably 0.5 to 20% by mass, and more preferably 0.00% with respect to the entire composition. 5 to 20% by mass. If it is less than 0.3% by mass, the effect of improving the crosslinking efficiency tends to be insufficient, and if it exceeds 30% by mass, the degree of freedom in blending other raw materials decreases, and the texture also tends to decrease.

In the present invention, a fiber structure having a colored layer colored with a colorant composition containing a binder polymer and a pigment can be produced, for example, by the method described in JP-A-2006-299018.
Particularly preferable coloring methods for coloring the fiber structure are an inkjet coloring method, a printing coloring method, and an immersion coloring method.
When the fiber structure is colored by the inkjet coloring method using the colorant composition of the present invention, the viscosity is preferably 2.5 to 15 mPa · s depending on the binder amount and the water-soluble solvent (for example, ethylene glycol and glycerin). It is necessary to adjust appropriately within a range. Thereby, coloring of cloth, such as cotton, polyester, and nylon, can be performed.
When the fiber structure is colored by a printing method using the colorant composition of the present invention, the viscosity is preferably 500 to 200,000 mPa · s depending on the number of meshes, the number of openings, and the number of transmission volumes of the silk screen plate to be used. It is necessary to adjust appropriately within a range. As a result, coloring such as high definition, high quality and high precision pictograms, tattoo patterns, and blur patterns can be performed.

In order to make the colorant composition of the present invention have a desired viscosity, various thickeners can be used. Examples of such thickeners include at least one selected from the group consisting of synthetic polymers, cellulose and polysaccharides, and terpene emulsions (each alone or a mixture of two or more thereof).
Examples of the synthetic polymer include polyacrylic acids, polyvinyl alcohol, polyethylene oxide, polyvinyl pyrrolidone, polyvinyl methyl ether, polyacrylamide, and the like. Examples of cellulose include ethyl cellulose, methyl cellulose, hydroxymethyl cellulose, carboxymethyl cellulose and the like. Examples of the polysaccharide include xanthan gum, guar gum, casein, gum arabic, gelatin, carrageenan, alginic acid, tragacanth gum, locust bean gum, pectin and the like.
Examples of terpene emulsions include mousse-like emulsions in which mineral terpenes and water are emulsified with a nonionic surfactant.

  When the fiber structure is colored by the dip dyeing method using the colorant composition of the present invention, the viscosity of the colorant composition of the present invention is preferably 20 to 1000 mPa · s, more preferably 30 to 500 mPa · s. is there. By adjusting the viscosity of the colorant composition of the present invention within this range, a good colored fiber structure can be obtained by the dip dyeing method.

  When the fiber structure is colored by the dip dyeing method using the colorant composition of the present invention, the texture and color developability of the fiber structure vary depending on the amount of the colorant composition attached. Accordingly, the pickup rate (mass ratio before drying of the colorant composition attached to the fiber structure (100 parts by mass)) is preferably 50 to 91 parts by mass, and more preferably 60 to 80 parts by mass. When the pickup rate is less than part by mass, the amount of the colorant composition attached is small, resulting in a hue with insufficient colorability. When the pickup rate exceeds 91 parts by mass, the amount of the colorant composition attached is too much and the fibers There is a tendency that the coating layer in the structure becomes thick and the texture is lowered. By adjusting the pickup rate of the colorant composition of the present invention to the above range, a colored fiber structure excellent in color development, texture, and fastness can be obtained.

The colorant composition of the present invention uses water (tap water, distilled water, purified water, ion exchange water, pure water, deep ocean water, etc.) as a solvent. However, in addition to water, an aqueous solvent having a polar group compatible with water is preferably used as a solvent other than water from the viewpoints of imparting water retention and improving the stability of the pigment and the binder polymer. Examples of such an aqueous solvent include methyl alcohol, ethyl alcohol, isopropyl alcohol, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, ethylene glycol monomethyl ether, glycerin, and pyrrolidone. In addition to these aqueous solvents, non-aqueous solvents such as liquid paraffin, mineral oil, and industrial gasoline can be used as long as they can be dispersed and mixed with water using an emulsifier or the like. These can be used alone or in admixture of two or more.
The water content in the colorant composition of the present invention is preferably 10 to 90% by mass, more preferably 30 to 80% by mass.

In the colorant composition of the present invention, when the binder polymer is used alone, the film strength and fastness may be insufficient. In this case, the fastness can be improved by adding a crosslinking agent that undergoes a crosslinking reaction with a hydroxyl group, a carboxyl group or the like in the pigment or binder polymer.
As this crosslinking agent, those exemplified as the reinforcing agent used in the coating composition of the present invention can be used.
Examples of the crosslinking reaction that can be used include a dehydration condensation reaction between a methylol group and a hydroxyl group, an epoxy ring-opening polymerization reaction between a glycidyl group and a hydroxyl group, a urethane reaction between an isocyanate group, a hydroxyl group, and a carboxyl group, and an amide ester of an oxazoline group and a carboxyl group. Reaction, carbamoylamide reaction and isourea reaction of carbodiimide group with hydroxyl group and carboxyl group, condensation dehydration reaction of silanol group and hydroxyl group, dehydration condensation reaction with metal alkoxide group and hydroxyl group, melamine condensation reaction of polyfunctional methylol group and hydroxyl group, diacetone Reduction dehydration reaction with acrylamide, hydrazide and hydroxyl group is used. When these aqueous crosslinking agents are blended in the colorant composition and heated, the hydroxyl groups and carboxyl groups of the pigment and the binder polymer are crosslinked to form a three-dimensional network structure and the fastness is improved.
The content of the crosslinking agent in the colorant composition of the present invention is preferably 0.1 to 20% by mass, more preferably 0.3 to 10% by mass, and more preferably 1 to 5% by mass.

The colorant composition of the present invention is a preservative, antifungal agent, metal salt sequestering agent, pH, which is widely used in conventional colorant compositions, as long as the components other than the above do not impair the effects of the present invention. Additives (optional components) such as a regulator, a lubricant, and a wetting agent can be contained.
Examples of antiseptics and fungicides include phenol, sodium omadin, sodium pentachlorophenol, 1,2-benzisothiazolin-3-one, 2,3,5,6-tetrachloro-4 (methylsulfonyl) pyridine, benzoic acid Examples thereof include sodium acid salts, benzoic acid, sorbitan acid, alkali metal salts of dehydroacetic acid, benzimidazole compounds, and the like.
Examples of the metal salt sequestering agent include benzotriazole, dicyclohexylammonium nitrite, diisopropylammonium nitrite, tolyltriazole, and saponins.
Examples of the pH adjuster include urea, aqueous ammonia, monoethanolamine, triethanolamine, aminomethyl propanol, alkali metal salts of phosphoric acid such as sodium tripolyphosphate, alkali metal hydroxides such as sodium hydroxide, and the like. .
Lubricants and wetting agents include polyalkylene glycol derivatives such as polyoxyethylene lauryl ether, fatty acid alkali metal salts, silicone oil emulsions, polyether-modified silicones such as polyethylene glycol adducts of dimethylene polysiloxane, polytetrafluoroethylene powder , Fluorine surfactants, fluorine-modified oils, acetylene glycols and the like.

The fiber structure of the present invention can be obtained by applying the coating composition of the present invention to the surface of the colored layer of the fiber structure having the colored layer thus produced.
The application method is not particularly limited, and methods such as printing, spraying, and dip dyeing can be applied. Particularly, spray coating, knife coating, gravure machine, screen printing and the like can be mentioned. After applying the coating composition, the fiber structure of the present invention can be obtained by drying at 80 to 170 ° C. for about 1 to 10 minutes.
The texture and fastness of the fiber structure vary depending on the amount of coating composition deposited. Therefore, the pick-up rate (mass ratio before drying of the coating composition attached to the fiber structure (100 parts by mass) before applying the colored layer) is preferably 5 to 100 parts by mass, more preferably 10 to 80 parts by mass. Part, more preferably 20 to 70 parts by mass. If the pick-up rate is less than 5 parts by mass, the amount of coating composition adhering is small and the fastness is not sufficiently improved. If the pick-up rate exceeds 100 parts by mass, the amount of adhering coating composition is too much and the texture is There is a tendency to decrease. By adjusting the pickup rate of the coating composition of the present invention to the above range, a colored fiber structure having an excellent balance between texture and fastness can be obtained.

EXAMPLES Next, although an Example and a comparative example demonstrate this invention further in detail, this invention is not limited to these Examples.
1. Manufacture of colored fiber structure About the fabric which consists of each material of polyester, cotton, and nylon, it colored by the inkjet printer (ICHINOSE 2020 Toshin Kogyo) using the composition for coloring of Table 1.

2. Coating Composition Treatment The colored fabric was coated using the coating composition shown in Table 2 by printing, spraying (inkjet method), and dip dyeing.

3. Evaluation Test Method The fabric subjected to the coating composition treatment was sufficiently dried at 130 ° C. and then evaluated according to the following methods and standards.
1) Fastness test Suga tester ER-2 type friction tester was subjected to a test of fastness to friction according to JIS L 0849, and evaluated according to the gray scale defined in JIS L 0805.
2) Texture The change in the texture due to the coating composition treatment was evaluated by touch according to the following criteria.
○: Same as the texture before coating. Or there is almost no change.
Δ: Feels slightly softer than before coating.
X: It feels harder than before coating.
3) Yellowing The color change (yellowing) was observed after the fabric treated with the coating composition was stored at 130 ° C. for 10 minutes.
The results are shown in Tables 3-5.

  In the table of coating polymer, “same” means the same as the binder polymer of the coloring liquid, “different” means different from the binder polymer of the coloring liquid, and “none” means that the coating polymer is not included. , PET means polyester.

As is apparent from the results of Examples and Comparative Examples, it can be seen that the fabric treated with the coating composition of the present invention is excellent in friction fastness without damaging the texture.
In Examples 1-6, the effect by this invention was acquired, without being influenced by the raw material of cloth.
In Example 7 in which a binder polymer (urethane) having a different elongation from the binder polymer (urethane) was used as the coating polymer, a slight decrease in friction fastness was observed.
In Example 8 in which a styrene acrylic emulsion different in type from the binder polymer (urethane) was used as the coating polymer, a slight decrease in texture was observed.

In Example 9 in which the silicone-based aqueous dispersion as a modifier was not added and in Example 10 in which the polyester aqueous dispersion as a reinforcing aid was not added, the fastness was slightly inferior to Example 1 and the like. It was. In Example 11 using an amino-modified silicone emulsion as a modifying agent, yellowing that seems to be derived from the same substance occurred.
Examples 12 and 13 are the results when coating was performed by a method other than textile printing, but it was found that the fastness was excellent and a constant texture was maintained regardless of the coating method. The slight decrease in texture due to dip dyeing is presumed to be due to the thicker coating layer.
In Comparative Example 1 having no coating layer and Comparative Example 2 in which the reinforcing agent is not contained in the coating layer, the texture is good but the fastness is inferior.

Claims (13)

  A fibrous structure having a colored layer colored by a colorant composition containing a binder polymer and a pigment, and having a coating layer formed by a coating composition containing a coating polymer and a reinforcing agent on the surface of the colored layer; Characteristic fiber structure.   The fiber structure according to claim 1, wherein the coating polymer contains a polymer of the same type as the binder polymer constituting the colored layer.   The fiber structure according to claim 1 or 2, wherein at least one of the colorant composition and the coating composition contains a polyurethane water dispersion having an elongation of 200% or more.   The fiber structure according to any one of claims 1 to 3, wherein the coating composition contains a modifier.   The fiber structure according to claim 4, wherein the modifier is a silicone-based aqueous dispersion.   The fiber structure according to any one of claims 1 to 5, wherein the coating composition contains a reinforcing aid.   A coating composition used for coating the surface of a fiber structure having a colored layer colored with a colorant composition containing a binder polymer and a pigment, the coating composition comprising a coating polymer and a reinforcing agent .   The coating composition according to claim 7, wherein the coating polymer contains a polymer of the same type as the binder polymer constituting the colored layer.   The coating composition according to claim 7 or 8, wherein the coating composition comprises an aqueous polyurethane dispersion having an elongation of 200% or more.   The coating composition according to claim 7, wherein the coating composition contains a modifier.   The coating composition according to claim 10, wherein the modifier is a silicone-based aqueous dispersion.   The coating composition according to claim 7, wherein the coating composition contains a reinforcing aid.   A fiber structure, wherein the coating composition according to any one of claims 7 to 12 is applied to the surface of a fiber structure having a colored layer colored with a colorant composition containing a binder polymer and a pigment. Body manufacturing method.