JP2009203596A - Infrared ray-absorbing fabric and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an infrared ray-absorbing fabric which gives flexible hand, has good durability, and has an excellent infrared ray-absorbing performance. <P>SOLUTION: Provided is the infrared ray-absorbing fabric imparting a dissolved infrared ray-absorbing substance to synthetic fibers. Provided is a method for producing the infrared ray-absorbing fabric including immersing synthetic fibers in a treating solution containing an infrared ray-absorbing substance dissolved in an agent for dissolving the infrared ray-absorbing substance, and simultaneously thermally treating the synthetic fibers at a temperature of 40-150°C, by imparting a treating solution containing an infrared ray-absorbing substance dissolved in an agent for dissolving the infrared ray-absorbing substance to synthetic fibers and then thermally treating the fibers at a temperature of 40-210°C, or by imparting a printing paste containing an infrared ray-absorbing substance dissolved in an agent for dissolving the infrared ray-absorbing substance to synthetic fibers by a printing method and then thermally treating the fibers at a temperature of 70-210°C. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a fabric having infrared absorption performance and a method for producing the same.

In recent years, cameras and video cameras that can shoot in the range beyond the visible light range are commercially available. Even if they are not visible, they are sensed by infrared rays emitted or reflected from the human body, etc. There is a problem that the wearing portion is photographed through.
Such a problem is particularly noticeable when thin sports clothing such as swimsuits and skates and thin fabrics such as underwear are directly worn on the skin.

  Therefore, in order to prevent the radiography using such a camera, a thin film of metal, metal carbide, or ceramic is applied to the fiber fabric surface via a binder resin, or is applied by a method such as vapor deposition or sputtering. Furthermore, it has been attempted to knead and mix these substances into the yarn itself (Patent Document 1).

  However, in the case of using a binder resin, the texture becomes hard and the weight of the fabric becomes heavy, so that the feeling of wearing is bad, and particularly in sports clothing, there is an adverse effect on recording, so improvement is desired.

  In the case where the above substances are applied to the fibers by vapor deposition or sputtering, the weight of the dough should not be heavier than that using the binder resin, but the feeling of wearing is bad, and the applied substances are worn due to wear during wearing or washing. It had the problem of dropping out.

  Furthermore, the above-mentioned substances are kneaded and spun into synthetic fibers, which are durable and do not increase in weight so much, but usually the spinning lot of fibers is very large. The amount of yarn used is small, and the produced yarn is likely to be in long-term inventory, and a technique for improving this has been desired.

  As another method, a method of dyeing fibers using a commercially available acid dye having infrared absorption performance has been studied, but in this case, the infrared absorption performance is insufficient, and a sufficient anti-shooting effect is obtained. There is no current situation.

  In addition, in order to obtain warm clothes, an infrared absorbing material is also applied to the fiber fabric, and the infrared absorbing material is kneaded into a resin for forming a synthetic fiber in the same manner as described above and then spun ( In Patent Document 2), the manufactured yarn may become a long-term stock, and in the case where an infrared absorbing material is applied to the fiber surface via a binder (Patent Document 3), the texture is hard, and when washing or dry cleaning is performed, infrared There was a problem that the absorbent material dropped out.

JP 2005-42252 A JP 2007-002372 A JP-A-8-325478

  An object of the present invention is to solve the above-mentioned problems, and to provide an infrared-absorbing fabric having a soft texture, durability, and excellent infrared absorption performance.

  As a result of intensive studies to solve the above problems, the present inventors have completed the present invention. That is, this invention consists of the following structures (1)-(7).

(1) An infrared-absorbing fabric obtained by applying a dissolved infrared-absorbing substance to a synthetic fiber.
(2) The infrared absorbing fabric according to (1), wherein the infrared absorbing substance is at least one selected from the group consisting of a diimonium compound and an aminium compound.

(3) A method for producing an infrared-absorbing fabric, characterized in that heat treatment is performed at a temperature of 40 to 150 ° C. while the synthetic fiber is immersed in a treatment liquid containing an infrared-absorbing substance dissolved in an infrared-absorbing substance-dissolving agent.
(4) Infrared absorption characterized by performing a heat treatment at a temperature of 40 to 210 ° C. after applying a treatment liquid containing an infrared absorbing substance dissolved in an infrared absorbing substance dissolving agent to a synthetic fiber by a padding method or a spray method. Fabric manufacturing method.
(5) Production of an infrared-absorbing fabric characterized in that a printing paste containing an infrared-absorbing substance dissolved in an infrared-absorbing substance-dissolving agent is applied to a synthetic fiber by a printing method and then heat-treated at a temperature of 70 to 210 ° C. Method.

(6) Infrared absorption as described in any one of (3) to (5) above, wherein the infrared absorbing substance solubilizer includes at least one selected from the group consisting of organic acids, methyl alcohol, ethyl alcohol, isopropyl alcohol and methyl ethyl ketone. Fabric manufacturing method.
(7) A garment manufactured using at least a portion of the infrared absorbing fabric according to (1) or (2) above.

  In the present invention, since the infrared absorbing material is applied to the synthetic fiber without using a binder resin, or by vapor deposition or sputtering, the texture is soft, light, and has excellent durability. A fabric can be provided. Further, since the infrared absorbing material is not kneaded and spun into a resin for producing synthetic fibers, concerns such as a large amount of inventory are also eliminated.

In addition, since the infrared absorbing fabric of the present invention has excellent infrared absorbing performance and can prevent radiography, it wears sports clothes such as swimsuits and underwear using the infrared absorbing fabric of the present invention. If it is, the radiography is prevented.
In addition, the infrared absorbing fabric of the present invention has excellent infrared absorbing performance. By absorbing infrared rays, the temperature of the fiber fabric is raised, and a warm fiber fabric, warm clothing, futon, kotatsu futon, etc. are provided. Is done.

The infrared absorbing fabric of the present invention is obtained by applying a dissolved infrared absorbing substance to a synthetic fiber.
Infrared absorbing materials useful in the present invention include diimonium compounds, aminium compounds, anthraquinone compounds, polymethine compounds, cyanine compounds, phthalocyanine compounds, dithiol metal complex compounds, squarylium compounds, naphthalocyanine compounds. Etc. These infrared absorbing materials may be used alone or in combination of two or more. From the viewpoint of infrared absorption performance, the infrared absorbing material is preferably at least one selected from the group consisting of a diimonium compound and an aminium compound.

Many of these infrared absorbing substances are colored, but unlike those generally used as dyes, the effect on the hue of the infrared absorbing fabric obtained is small because of the low build-up property in the visible light region. Further, from the viewpoint that any color development of the obtained infrared absorbing fabric becomes possible, it is preferable to use an infrared absorbing material with less coloring in the visible light region.
From the viewpoint of anti-photographing performance, the infrared absorbing material is preferably at least one selected from the group consisting of a diimonium compound and an aminium compound, and a diimonium compound is particularly preferable. From the viewpoint of increasing the temperature of the fiber fabric by absorbing infrared rays to obtain a warm fiber fabric, the infrared absorbing material is preferably at least one selected from the group consisting of a diimonium compound and an aminium compound. Of these compounds, the compounds are particularly preferred.

Commercially available diimonium compounds are available, including NIR-IM1 manufactured by Nagase ChemteX Corporation, KAYASORB IRG-069, IRG-068, IRG-022 manufactured by Nippon Kayaku Co., Ltd., and the like. It is done.
Commercially available aminium compounds are also available, such as NIR-AM1 manufactured by Nagase ChemteX Corporation.

  These infrared absorbing substances are hardly soluble substances that hardly dissolve in water as they are, but in the present invention, these infrared absorbing substances can be dissolved and used. By applying the dissolved infrared absorbing material to the synthetic fiber, an infrared absorbing fabric that is soft in texture, light, and excellent in durability can be obtained. The dissolved infrared absorbing material is exhausted and fixed to the synthetic fiber without using a binder resin or the like.

  In the present invention, as the synthetic fiber, a known synthetic fiber such as polyester, nylon, aramid (aromatic polyamide), acrylic, polyurethane, acetate, etc. can be used, and the shape thereof is also a thread, woven fabric, knitted fabric, non-woven fabric, Moreover, you may be in arbitrary shapes, such as clothes, such as a swimsuit.

  In addition, these synthetic fibers may be a composite of a plurality of fibers, and may be a conjugate yarn, a mixed fiber, a blended product, or a woven or knitted fabric in the case of a fabric. Good. In the case of using for a stretchy product such as a swimsuit, it is preferable to use a stretchable fiber, particularly one containing a polyurethane fiber, and in particular, a synthetic fiber in which the polyurethane fiber is covered with a polyester fiber, a nylon fiber or the like. A knitted fabric using is preferred.

Further, from the viewpoint of infrared absorption performance, fibers containing cationic dyeable polyester are preferably used.
Alternatively, natural fibers such as cotton, wool, silk, hemp, etc., or regenerated fibers such as rayon and the above synthetic fibers may be combined.

Furthermore, from the viewpoint of processing stability and small lot production, it is preferably in the shape of a fabric such as a woven fabric, a knitted fabric or a non-woven fabric containing synthetic fibers.
These synthetic fibers are subjected to dyeing, printing, antibacterial and deodorant processing, antibacterial processing, flame retardant processing, water absorption processing, SR processing, deodorization processing, water repellent processing, ultraviolet shielding processing, antistatic processing, etc. Also good.

  The amount of the infrared absorbing material applied to the synthetic fiber is preferably 0.01 to 10.00% omf with respect to the mass of the synthetic fiber. If it is below 0.01% omf, there is a possibility that sufficient infrared absorption performance cannot be obtained. Even if it exceeds 10.00% omf, the infrared absorbing material is hardly exhausted by the synthetic fiber any more, so that it is costly. Disadvantageous.

As one of the infrared absorbing performances of the infrared absorbing fabric of the present invention, evaluation is performed by measuring infrared reflectance. The infrared reflectance of the infrared absorbing fabric of the present invention is preferably such that the average reflectance is 60% or less over a wavelength range of 850 to 1400 nm. From the viewpoint of preventing see-through photography, the average reflectance is more preferably 50% or less. If the average reflectance exceeds 60%, there is a risk of being easily seen through.
As another method for evaluating the infrared absorption performance of the present invention, the evaluation is performed by irradiating the fiber fabric with infrared rays and measuring the increase in the temperature of the fiber fabric.

The infrared absorbing fabric of the present invention may have a substantially uniform infrared absorbing performance over the entire fabric, but may be partially imparted with an infrared absorbing capability using a printing method or the like, and in multiple stages. It may have a good infrared absorption performance. For example, in an infrared absorbing fabric used for a swimsuit, an infrared absorbing material is applied to a synthetic fiber so that only the chest has an infrared reflectance of 50% or less. In an infrared camouflage clothing, there are multiple stages depending on the camouflage pattern. It is good also as what has the infrared reflectance of. In addition, about the case where it uses for an infrared camouflage clothing, after giving uniform infrared absorption performance to the whole fabric, you may finely adjust an infrared reflectance by providing a pattern using a well-known dye and pigment.
Moreover, when using the infrared rays absorption fabric of this invention in order to obtain warm clothes, you may provide an infrared rays absorption substance only to the shoulder part and waist | hip | lumbar part which are especially warmed, or many to these parts.

The infrared absorbing fabric of the present invention has durability against washing treatment, and preferably absorbs infrared rays after 20 times of washing treatment (washing treatment according to JIS L0217 103 method), more preferably after 50 times. It is good to have performance.
In particular, when used for swimsuit applications, it is desirable that the infrared absorption performance be obtained even after treatment with chlorinated water (treatment according to JIS L0884 C method).
Moreover, what is used for the application which performs dry cleaning, such as a jacket and ski wear, should have the infrared absorption performance even after dry cleaning.

Next, the following methods 1 to 3, which are preferable as a method for producing the infrared absorbing fabric of the present invention, will be described.
Method 1: A method for producing an infrared-absorbing fabric, characterized in that heat treatment is performed at a temperature of 40 to 150 ° C. while a synthetic fiber is immersed in a treatment solution containing an infrared-absorbing substance dissolved in an infrared-absorbing substance-dissolving agent.
Method 2: Infrared absorption characterized by applying a treatment solution containing an infrared absorbing substance dissolved in an infrared absorbing substance dissolving agent to a synthetic fiber by a padding method or a spray method, and then performing a heat treatment at a temperature of 40 to 210 ° C. Fabric manufacturing method.
Method 3: Production of an infrared-absorbing fabric characterized in that a printing paste containing an infrared-absorbing substance dissolved in an infrared-absorbing substance-dissolving agent is applied to a synthetic fiber by a printing method and then heat-treated at a temperature of 70 to 210 ° C. Method.

In Method 1, heat treatment is performed at a temperature of 40 to 150 ° C. while the synthetic fiber is immersed in a treatment liquid containing an infrared absorbing material dissolved with an infrared absorbing material dissolving agent. In this case, the above-described materials can be used as the infrared absorbing material.
Moreover, the above-mentioned thing can be used also for a synthetic fiber, The shape can also use the above-mentioned thing. Further, this may be subjected to dyeing, printing, antibacterial and deodorizing processing, antibacterial processing, flame retardant processing, water absorption processing, SR processing, deodorization processing, ultraviolet shielding processing, antistatic processing, and the like.

  The amount of the infrared absorbing substance in the treatment liquid containing the infrared absorbing substance dissolved by the infrared absorbing substance dissolving agent is such that the mass of the infrared absorbing substance is 0.01% omf or more and 10.00% omf with respect to the mass of the synthetic fiber. It is good to adjust so that it may become the following.

  In the production method of the present invention, by using a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent, the infrared absorbing substance is exhausted and fixed to the synthetic fiber without using a binder resin.

  As the infrared absorbing substance solubilizer used at this time, any one can be used as long as it dissolves the infrared absorbing substance, but preferably an organic acid, methyl alcohol, ethyl alcohol, isopropyl alcohol (IPA), methyl ethyl ketone. (MEK), at least one selected from the group consisting of acetone, acetonitrile and dimethylformamide (DMF), more preferably at least one selected from the group consisting of organic acid, methyl alcohol, ethyl alcohol, isopropyl alcohol and methyl ethyl ketone. It is good that it is.

  Examples of the organic acid include acetic acid, formic acid, propionic acid and the like. From the viewpoint of exhaustion of the infrared absorbing material to the synthetic fiber and the environmental aspect during work, an organic acid is preferable, and acetic acid or formic acid is particularly preferable. Furthermore, acetic acid is particularly preferable from the viewpoint of preventing deterioration of the synthetic fiber.

  The concentration of the infrared absorbing substance dissolving agent in the treatment liquid is preferably 5 g / l or more and 100 g / l or less, more preferably 9 g / l or more. When this concentration is less than 5 g / l, the infrared absorbing material adheres unevenly to the synthetic fiber and may not be sufficiently applied. When an organic acid is used, it is preferably 9 g / l or more from the viewpoint of uniform adhesion of the infrared absorbing material to the synthetic fiber. Further, if the concentration of the infrared absorbing substance solubilizer exceeds 100 g / l, the synthetic fiber may be deteriorated.

  The infrared absorbing substance can be mixed with the treatment liquid by dissolving the infrared absorbing substance in the infrared absorbing substance dissolving agent and then mixing this solution with water. The treatment liquid thus obtained can be used as an aqueous solution of an infrared absorbing material, and is preferable from the viewpoint of improving the exhaust amount of the infrared absorbing material to the synthetic fiber and processing stability.

  Once the infrared absorbing material is dissolved in the infrared absorbing material solubilizer, the infrared absorbing material is hardly deposited even when diluted with water and used as a treatment liquid, and the infrared absorbing material is stably exhausted to the synthetic fiber. And fixed.

  When the infrared absorbing substance is added to water containing the infrared absorbing substance dissolving agent without dissolving the infrared absorbing substance in the infrared absorbing substance dissolving agent, the infrared absorbing substance is not dissolved but separated from the dispersion or water. If synthetic fibers are treated with such a treatment solution, the amount of infrared absorbing material exhausted to the synthetic fibers may be reduced, or the synthetic fibers may become uneven, and infrared absorption performance, appearance quality, and processing It is not preferable from the viewpoint of stability.

  The infrared absorbing substance may be dissolved in the infrared absorbing substance dissolving agent by adding the infrared absorbing substance to the infrared absorbing substance dissolving agent diluted with water or the like as long as the infrared absorbing substance is dissolved. In addition, when an infrared absorbing material dissolving agent such as MEK that is not soluble in water is used, the water in the treatment liquid and the infrared absorbing material solution dissolved in the infrared absorbing material dissolving agent are hardly miscible. The infrared absorbing substance is present in the treatment liquid in the form of a solution dissolved in the infrared absorbing substance dissolving agent.

  The synthetic fiber is immersed in a treatment solution containing an infrared absorbing material dissolved with an infrared absorbing material dissolving agent. At this time, the bath ratio of the treatment liquid containing the synthetic fiber and the infrared absorbing material dissolved by the infrared absorbing material dissolving agent is preferably 1: 3 to 1: 300. If the bath ratio is less than 1: 3, the infrared absorbing material may adhere to the synthetic fiber in a non-uniform manner. If the bath ratio exceeds 1: 300, the infrared absorbing material is not sufficiently exhausted by the synthetic fiber, There is a risk that it will not stick.

Heat treatment is performed by heating the treatment liquid while immersing the synthetic fiber in the treatment liquid containing the infrared absorbing substance dissolved in the infrared absorbing substance dissolving agent. The heat processing temperature at this time is 40-150 degreeC. Depending on the type of synthetic fiber, from the viewpoint of exhausting the infrared absorbing material, for example, in the case of regular polyester, heat treatment is performed at 60 to 140 ° C, and in the case of cationic dyeable polyester, heat treatment is performed at 40 to 130 ° C. Just do it. In the case of 6-nylon, heat treatment may be performed at 40 to 115 ° C. Moreover, what is necessary is just to heat-process at 80-150 degreeC if it is an aramid fiber.
If the heat treatment temperature is below 40 ° C., the infrared absorbing material may not be exhausted sufficiently by the synthetic fiber, and if it exceeds 150 ° C., the synthetic fiber may be deteriorated.

In addition, the treatment liquid containing the infrared absorbing material dissolved in the infrared absorbing material solubilizer should be acetic acid, formic acid, surfactant (dispersing agent, level dyeing) as long as it does not prevent the infrared absorbing material from being exhausted into the synthetic fiber. Agents, slow dyeing agents, carriers, etc.), dyes, fixing agents, antibacterial agents, flame retardants, salts such as sodium sulfate and sodium acetate, and the like.
From the viewpoint of productivity, it is preferable to add a dye to a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent, and exhaust the infrared absorbing substance to the synthetic fiber and fix it simultaneously with the dyeing process.

  Also, when dyed with disperse dyes using synthetic fibers composed of polyurethane fibers and polyester fibers, from the viewpoint of dyeing fastness, reduction washing, and residual amount of infrared absorbing material after soaping in synthetic fibers It is better to treat in a separate bath from the dye. In particular, after dyeing treatment (including reduction cleaning and soaping), heat treatment may be performed while the synthetic fiber is immersed in a treatment liquid containing an infrared absorbing material dissolved with an infrared absorbing material dissolving agent.

In the method 1, treatment can be performed using a wins, a liquid dyeing machine, a beam dyeing machine, a zicker, a drum dyeing machine, a skein dyeing machine, or the like.
After heat treatment while immersing the synthetic fiber in the treatment liquid containing the infrared absorbing substance dissolved in the infrared absorbing substance dissolving agent, reduction cleaning, soaping, water washing, etc. may be performed as necessary.
After that, if necessary, dyeing, printing, fixing treatment, antibacterial deodorization processing, antibacterial processing, flame retardant processing, water absorption processing, SR processing, water repellent processing, deodorization processing, UV shielding processing, antistatic processing, waterproof processing Etc. may be given. Moreover, you may perform heat processing, such as a drying process and a finishing set, as needed.

In Method 2, a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent is applied to a synthetic fiber by a padding method or a spray method, and then heat treatment is performed at a temperature of 40 to 210 ° C.
As the infrared absorbing material at this time, the above-mentioned materials can be used. The above-mentioned synthetic fibers can also be used for dyeing, printing, antibacterial and deodorant processing, antibacterial processing, flame retardant processing, water absorption processing, SR processing, deodorization processing, ultraviolet shielding processing, antistatic Processing etc. may be given.
In addition, as the shape of the synthetic fiber, those described above can be used, but the shape of a fabric such as a woven fabric, a knitted fabric, or a non-woven fabric containing the synthetic fiber is stable in the amount of the infrared absorbing substance applied to the synthetic fiber. It is preferable from the viewpoint of conversion.

  An infrared absorbing material may be added to the treatment liquid containing the infrared absorbing material dissolved with the infrared absorbing material solubilizer so that the amount of the infrared absorbing material applied to the synthetic fiber is the above amount. Specifically, although depending on the application amount (pickup or the like) of the treatment liquid containing the infrared absorbing substance dissolved in the synthetic fiber with the infrared absorbing substance dissolving agent, the infrared absorbing substance is preferably contained in the treatment liquid. It is good to contain -10 mass%. If the amount is less than 0.01% by mass, the required amount of the infrared absorbing material may not be imparted to the synthetic fiber, and even if the amount exceeds 10%, the infrared absorbing material is not exhausted to the synthetic fiber any more. It is disadvantageous in cost.

In the production method of the present invention, by using a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent, the infrared absorbing substance is exhausted and fixed to the synthetic fiber without using a binder resin.
As the infrared absorbing substance dissolving agent used at this time, the same ones as described above can be used. A preferable infrared absorbing substance dissolving agent is the same as described above.

  The concentration of the infrared absorbing substance solubilizer used at this time is preferably 5 g / l or more and 100 g / l or less, more preferably 9 g / l or more in the treatment liquid. If it is less than 5 g / l, the infrared absorbing material adheres unevenly to the synthetic fiber and may not be sufficiently applied. In the case of using an organic acid, 9 g / l or more is preferable from the viewpoint of uniform adhesion of the infrared absorbing material to the synthetic fiber. Further, if the concentration of the infrared absorbing substance solubilizer exceeds 100 g / l, the synthetic fiber may be deteriorated.

  The infrared absorbing substance can be mixed with the treatment liquid by dissolving the infrared absorbing substance in the infrared absorbing substance dissolving agent and then mixing this solution with water. The treatment liquid thus obtained can be used as an aqueous solution of an infrared absorbing material, and is preferable from the viewpoint of improving the exhaust amount of the infrared absorbing material into the synthetic fiber and processing stability.

Once the infrared absorbing material is dissolved in the infrared absorbing material solubilizer, the infrared absorbing material hardly precipitates even when the treatment solution is diluted with water, and the synthetic fiber is stably exhausted. Fixed.
When the infrared absorbing substance is added to water containing the infrared absorbing substance dissolving agent without dissolving the infrared absorbing substance in the infrared absorbing substance dissolving agent, the infrared absorbing substance is not dissolved but separated from the dispersion or water. If synthetic fibers are treated with such a treatment solution, the amount of infrared absorbing material exhausted to the synthetic fibers may be reduced, or the synthetic fibers may become uneven, and infrared absorption performance, appearance quality, and processing It is not preferable from the viewpoint of stability.

  The infrared absorbing substance may be dissolved in the infrared absorbing substance dissolving agent by adding the infrared absorbing substance to the infrared absorbing substance dissolving agent diluted with water or the like as long as the infrared absorbing substance is dissolved. In addition, when an infrared absorbing material dissolving agent such as MEK that is not soluble in water is used, the water in the treatment liquid and the infrared absorbing material solution dissolved in the infrared absorbing material dissolving agent are hardly miscible. The infrared absorbing substance is present in the treatment liquid in the form of a solution dissolved in the infrared absorbing substance dissolving agent.

  A treatment liquid containing an infrared absorbing substance and an infrared absorbing substance dissolving agent is applied to the synthetic fiber by a padding method or a spray method. The padding method and the spray method may be performed by a known method using a nip roll or a spray nozzle.

  After the treatment liquid containing the infrared absorbing material dissolved by the infrared absorbing material dissolving agent is applied to the synthetic fiber by the padding method or the spray method, heat treatment is performed at a temperature of 40 to 210 ° C. The heat treatment temperature depends on the type of synthetic fiber, but from the viewpoint of exhausting the infrared absorbing material, for example, in the case of polyester, 40 to 200 ° C. (regular polyester 60 to 200 ° C., cationic dyeable polyester) (40 to 190 ° C.). Moreover, if it is 6-nylon, what is necessary is just to heat-process at 40-190 degreeC. Moreover, what is necessary is just to heat-process at 80-210 degreeC if it is an aramid fiber.

  If the heat treatment temperature is lower than 40 ° C., the infrared absorbing material may not be sufficiently exhausted by the synthetic fiber, and if it exceeds 210 ° C., the synthetic fiber may be deteriorated. The heat treatment may be either dry heat treatment or wet heat treatment. Moreover, you may perform a drying process at low temperature (30-120 degreeC) before performing this heat processing.

In addition, the treatment liquid containing the infrared absorbing material dissolved in the infrared absorbing material solubilizer may be acetic acid, formic acid, surfactant (dispersant, carrier, etc.) as long as it does not prevent the infrared absorbing material from being exhausted into the synthetic fiber. ), Dyes, fixing agents, antibacterial agents, flame retardants, and salts such as sodium sulfate and sodium acetate.
From the viewpoint of productivity, it is preferable to add a dye to a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent, and exhaust the infrared absorbing substance to the synthetic fiber and fix it simultaneously with the dyeing process.

  When dyed with disperse dyes using synthetic fibers composed of polyurethane fibers and polyester fibers, the dyes are selected from the viewpoints of dyeing fastness, reduction washing, and residual amount of infrared absorbing material after soaping in the synthetic fibers. It is better to treat in a separate bath. In particular, after dyeing treatment (including reduction cleaning and soaping), a treatment liquid containing an infrared absorbing material dissolved with an infrared absorbing material solubilizing agent may be applied to the synthetic fiber by a padding method or a spray method, followed by heat treatment.

After the heat treatment, reduction cleaning, soaping, water washing and the like may be performed as necessary.
In addition, dyeing, printing, fix processing, antibacterial and deodorizing processing, antibacterial processing, flame retardant processing, water absorption processing, SR processing, water repellent processing, deodorization processing, UV shielding processing, and waterproof processing are performed as necessary. Also good. Moreover, you may perform heat processing, such as a drying process and a finishing set, as needed.

In method 3, a printing paste containing an infrared absorbing material dissolved with an infrared absorbing material dissolving agent is applied to a synthetic fiber by a printing method, and then heat treatment is performed at a temperature of 70 to 210 ° C.
As the infrared absorbing material at this time, the above-mentioned materials can be used. The above-mentioned synthetic fibers can also be used, but the shape of the synthetic fibers may be in the form of a fabric such as a woven fabric, a knitted fabric or a nonwoven fabric containing the synthetic fibers. Furthermore, these may be subjected to dyeing, textile printing, antibacterial deodorization processing, antibacterial processing, flame retardant processing, water absorption processing, SR processing, deodorization processing, ultraviolet shielding processing, and antistatic processing.

The amount of the infrared absorbing material added to the printing paste containing the infrared absorbing material dissolved with the infrared absorbing material solubilizer may be an amount such that the amount of the infrared absorbing material applied to the synthetic fiber is the above amount. The amount is preferably about 0.05 to 10% by mass in the printing paste. More preferably, it is 0.1-5 mass%. If the blending amount of the infrared absorbing material in the printing paste is less than 0.05% by mass, sufficient infrared absorbing performance may not be obtained. Since the exhaust amount does not increase so much, it is disadvantageous in terms of cost.
In addition, it is not necessary to add an infrared ray absorbing substance to the printing paste to be applied to a place where it is not necessary to provide infrared absorption performance.

In the production method of the present invention, a printing paste containing an infrared absorbing material dissolved with an infrared absorbing material dissolving agent is used. By using such printing paste, the infrared absorbing material is exhausted and fixed to the synthetic fiber without using a binder resin.
As the infrared absorbing substance dissolving agent used at this time, the same ones as described above can be used. A preferable infrared absorbing substance dissolving agent is the same as described above.

  The concentration of the infrared absorbing substance solubilizer used at this time is preferably 0.1% by mass or more and 40% by mass or less, and more preferably 1% by mass or more in the printing paste. If the amount is less than 0.1% by mass, the infrared absorbing material may not be sufficiently imparted to the synthetic fiber. Moreover, when it exceeds 40 mass%, there exists a possibility that a synthetic fiber may deteriorate.

  The infrared absorbing material can be mixed with the printing paste by dissolving the infrared absorbing material in the infrared absorbing material dissolving agent and then mixing this solution with the printing paste. The printing paste thus obtained can be used in a state where the infrared absorbing material is dissolved in the printing paste, and is preferable from the viewpoint of improving the exhaustion amount of the infrared absorbing material to the synthetic fiber and the stability of processing.

  Once the infrared absorbing material is dissolved in the infrared absorbing material solubilizer, even if it is diluted with water or mixed with printing paste to form a printing paste, the infrared absorbing material hardly precipitates and is stably synthesized. Infrared absorber is exhausted and fixed.

When the infrared absorbing material is added to the printing paste containing the infrared absorbing material dissolving agent without dissolving the infrared absorbing material in the infrared absorbing material dissolving agent, the infrared absorbing material particles are dispersed without dissolving the infrared absorbing material. If the synthetic fiber is processed using such a printing paste, the amount of exhaustion of the infrared absorbing material to the synthetic fiber is reduced, or the synthetic fiber becomes uneven and the infrared absorbing performance, It is not preferable from the viewpoint of appearance quality and processing stability.
The infrared absorbing substance may be dissolved in the infrared absorbing substance dissolving agent by adding the infrared absorbing substance to the printing paste to which the infrared absorbing substance dissolving agent is added, as long as the infrared absorbing substance is dissolved.

As the original paste used for the printing paste, known pastes such as solution paste, emulsion paste, and half emulsion paste can be used.
When the infrared absorbing material is applied to the synthetic fiber by the printing method, it can be applied to the entire surface of the fabric containing the synthetic fiber, or can be easily applied only to the portion to which the infrared absorption performance is desired.

  Further, by changing the blending amount of the infrared absorbing material into the printing paste, the amount of the infrared absorbing material exhausted to the fabric containing the synthetic fiber is partially adjusted, and the amount of the infrared absorbing material applied to the synthetic fiber is changed. Thus, a partially different infrared reflection performance can be imparted, and this method is a preferred method for imparting an infrared camouflage pattern.

  The application of the printing paste containing the infrared absorbing material dissolved with the infrared absorbing material dissolving agent to the synthetic fiber by the printing method is performed by applying to the fabric containing the synthetic fiber using a known printing machine such as a screen printing machine. Can do. In addition, in such a textile printing method, a coating coater such as a knife coater is used in addition to a screen printing machine, particularly when a printing paste is applied to the entire fabric containing synthetic fibers in order to impart an infrared absorbing material to the entire fabric including synthetic fibers. Can also be used.

A printing paste containing an infrared absorbing material dissolved with an infrared absorbing material dissolving agent is applied to the synthetic fiber, and heat treatment is performed. The heat processing temperature at this time is 70-210 degreeC. Depending on the type of synthetic fiber, from the viewpoint of exhausting the infrared absorbing material, for example, in the case of polyester, 70 to 200 ° C. (regular polyester 100 to 200 ° C., cationic dyeable polyester 70 to 190 ° C. ). In the case of 6-nylon, heat treatment may be performed at 70 to 170 ° C. Moreover, what is necessary is just to heat-process at 100-210 degreeC if it is an aramid fiber.
If the temperature is lower than 70 ° C., the infrared absorbing material may not be sufficiently exhausted by the synthetic fiber, and if it exceeds 210 ° C., the synthetic fiber may be deteriorated.

The heat treatment may be either dry heat treatment or wet heat treatment.
Moreover, before performing the said heat processing to the synthetic fiber (fabric containing a synthetic fiber) which provided the textile paste containing the infrared absorbing substance melt | dissolved with the infrared-absorbing substance solubilizer, a drying process was performed at the temperature of about 30-120 degreeC. May be.

  In addition, printing paste containing an infrared absorbing material dissolved with an infrared absorbing material solubilizing agent may be used within a range that does not prevent exhaustion of the infrared absorbing material into synthetic fibers, acetic acid, formic acid, surfactant (dispersant, carrier, etc.) ), Dyes, antibacterial agents, flame retardants, terpenes, and the like.

After the heat treatment, reduction cleaning, soaping, water washing and the like may be performed by a known method.
After that, if necessary, dyeing, printing, fixing treatment, antibacterial deodorization processing, antibacterial processing, flame retardant processing, water absorption processing, SR processing, water repellent processing, deodorization processing, UV shielding processing, antistatic processing, waterproof processing May be applied. Moreover, you may perform heat processing, such as a drying process and a finishing set, as needed.

Next, the clothes of the present invention will be described.
The garment of the present invention uses the infrared absorbing fabric of the present invention at least in part. Therefore, the present invention may be used in some parts of clothes (for example, a chest of a swimsuit) that wants to prevent fluoroscopy, particularly in parts of clothes that want to be warmed (for example, shoulders). You may manufacture with an infrared absorption fabric.

The clothes may be any of swimwear, underwear, speed skating uniforms, track and field sports uniforms, tee shirts, jackets, jackets, and the like. In the case of a garment having a front material and a lining material, the infrared absorbing fabric of the present invention may be used for either one or both of the front material and the lining material.
Moreover, you may use the infrared rays absorption fabric of this invention for a futon, a sheet, a Cairo bag, a kotatsu futon, etc. When it is used for the Kotatsu futon, an energy saving effect can be expected.

  An infrared camouflage garment can also be produced using the infrared absorbing fabric of the present invention. In infrared camouflage clothing, the infrared reflectance is partially changed by applying an infrared absorbing material to a synthetic fiber (fabric containing synthetic fiber) by a printing method using a printing paste or the like in which the amount of the infrared absorbing material is adjusted. Camouflage effect. Furthermore, an infrared camouflage garment is produced using an infrared absorbing fabric in which a binder resin or a dye containing a pigment having a conventionally known infrared absorbing performance is partially applied to the infrared absorbing fabric of the present invention having uniform infrared absorbing performance throughout the entire fabric. May be obtained.

EXAMPLES Hereinafter, although an Example demonstrates this invention further, this invention is not limited at all by these Examples. Moreover, "%" in an example is the mass%.
Evaluation in the following examples was performed by the following method. Infrared absorption performance was evaluated based on infrared transmission photographing prevention performance, infrared reflectance, and temperature increase due to infrared irradiation.

Infrared transmission photography prevention performance: A sample is placed on a transmission judgment plate (sight table) and placed on a sample stage. The sample is photographed with a digital camera (NIKON COOLPIX 4500) equipped with an infrared filter (FUJIFILM IR 76) irradiated with infrared rays (maximum wavelength 940 nm) at an irradiation intensity of 7 mW / cm ² . The presence or absence of transmission is determined based on the photographed image. In the printed product, the printing surface was used as the surface (photographing surface).
○: Not transmitted. Δ: Cannot be clearly determined. X: Permeate.

  Infrared average reflectance: The reflectance was measured over a wavelength region of 850 to 1400 nm, and the average reflectance is shown in Table 1. As a measuring machine, FT-IR ONE NTS manufactured by PerkinElmer was used. The printed product used the printing surface as the surface.

  Temperature rise by infrared irradiation: Two samples having a size of 10 cm × 10 cm are stacked and placed on a polystyrene base. The lamp is installed at a height at which the distance between the lamp for infrared irradiation (photo reflex lamp PRF-500WB, manufactured by Matsushita Electric Industrial Co., Ltd.) and the sample is 28 cm. A thermocouple is sandwiched between the two stacked samples, and infrared irradiation is performed. The temperature 10 minutes after the start of infrared irradiation is measured. In addition, the room temperature at the time of temperature measurement was 10 degreeC, and the wind speed was performed at the time of the wind speed at the time of no wind and 1 m / min. Each temperature measurement was performed twice, and the temperature obtained by subtracting room temperature (10 ° C.) from the average value was defined as the temperature rise by infrared irradiation.

Washing treatment: Washing was carried out 20 times and 50 times according to JIS L-0217 103. In addition, as washing processing, 5 times continuous washing (washing 25 minutes-dehydration-rinsing 10 minutes-dehydration-rinsing 10 minutes-dehydration) was performed 4 times (20 times washing) and 10 times (50 times washing). Moreover, hanging drying was performed as drying.
Chlorinated water: Performed according to JIS L0884 C method.

Example 1
Fabric obtained by using polyurethane fiber (PU) and cationic dyeable polyester fiber (CDP) (PU44 dtex, 1 filament, 16.3%, CDP56 dtex, 24 filament, 83.7%) as synthetic fibers (Tricot, 32 whales / 2.54 cm, 64 courses / 2.54 cm), cationic dyes Kayacryl Yellow 3RL-ED 2.0% omf, Red GL-ED 1.0% omf, Blue FP-ED 5.0% omf (All were manufactured by Nippon Kayaku Co., Ltd.), and were soaped and washed with hot water.

  Next, after the infrared absorbing material NIR-IM1 (diimonium compound, manufactured by Nagase ChemteX Corp.) is dissolved in an infrared absorbing material solubilizer (acetic acid), the amount of the infrared absorbing material is set to 0. It was added to water so as to be 05% omf, and a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent was obtained (acetic acid concentration in the treatment liquid was 10 g / l). The infrared absorbing material was dissolved in the treatment liquid, and the treatment liquid was in the state of an aqueous solution of the infrared absorbing substance.

Using a liquid dyeing machine, the temperature of the treatment liquid was increased while immersing the fabric in the treatment liquid, and heat treatment was performed at 110 ° C. for 30 minutes. Thereafter, it was washed with water and dried to obtain an infrared absorbing fabric. Further, a water repellent treatment was performed using a 5% aqueous solution of a water repellent (Asahi Guard AG710 manufactured by Asahi Glass Co., Ltd.).
Table 1 shows the infrared absorbing performance and the like of the obtained infrared absorbing fabric.

In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
Moreover, the swimsuit was created using the obtained infrared absorptive fabric. The obtained swimsuit had sufficient anti-passing performance.

Moreover, the temperature rise by infrared irradiation of the obtained infrared absorption fabric was 46 degreeC (measurement temperature 56 degreeC) at the time of no wind, and 26 degreeC (measurement temperature 36 degreeC) at the wind speed of 1 m / min. These results are shown in Table 2.
For the fabric obtained in Comparative Example 2 below, the temperature rise due to infrared irradiation was measured in the same manner as in Example 1, and it was 39 ° C. (measurement temperature 49 ° C.) when no wind was applied, and 20 ° C. (measurement temperature when the wind speed was 1 m / min). 30 ° C.), the infrared absorbing fabric of Example 1 treated with the infrared absorbing material and the fabric of Comparative Example 2 had a temperature increase difference of 7 ° C. when no wind was applied and 6 ° C. when the wind speed was 1 m / min.
The swimsuit created using the infrared-absorbing fabric of Example 1 felt warm even when wearing a wet thing rising from the pool, and there was almost no cold feeling.

Comparative Example 1
A treated fabric was obtained by repeating the procedure of Example 1 except that acetic acid was not used as the infrared absorbing substance dissolving agent. The treatment liquid was a dispersion liquid in which an infrared absorbing material was dispersed in water.
Table 1 shows the infrared absorption performance and the like of the obtained treated fabric.
The texture of the treated fabric was confirmed by hand, but it was soft. In addition, the infrared absorbing substance adhered unevenly to the treated fabric, and the appearance quality was poor.

Comparative Example 2
The operation of Example 1 was repeated except that the treatment with the treatment liquid containing the infrared absorbing substance dissolved in the infrared absorbing substance dissolving agent was not performed.
Table 1 shows the infrared absorption performance and the like of the obtained treated fabric. Table 2 shows the temperature rise due to infrared irradiation.
The texture of the treated fabric was confirmed by hand, but it was soft.

Example 2
Fabric obtained using PU and 6-nylon fiber (Ny) as synthetic fiber (PU44 dtex, 1 filament, 13%, Ny78 dtex, 24 filament, 87%) (Tricot, 32 wales / 2.54 cm, course 64 / 2.54 cm) was dyed with an acidic dye Kayanol Milling Green GW 0.5% omf (manufactured by Nippon Kayaku Co., Ltd.) and washed with hot water.

  Next, after the infrared absorbing material NIR-IM1 (diimonium compound, manufactured by Nagase ChemteX Corporation) is dissolved in an infrared absorbing material solubilizer (acetic acid), the amount of the infrared absorbing material is 0.1 with respect to the synthetic fiber. % Omf was added to water to prepare a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent (acetic acid concentration in the treatment liquid was 10 g / l). The infrared absorbing material was dissolved in the treatment liquid, and the treatment liquid was in the state of an aqueous solution of the infrared absorbing substance.

While immersing the fabric in the treatment liquid using a liquid dyeing machine, the temperature of the treatment liquid was increased and heat treatment was performed at 100 ° C. for 30 minutes. Then, it washed with water and obtained the infrared rays absorption fabric.
Table 1 shows the infrared absorption performance and the like of the obtained fabric.
In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
A swimsuit was produced using the obtained infrared absorbing fabric. The obtained swimsuit had sufficient anti-passing performance.

Example 3
Fabric obtained by using regular polyester fiber (PET) as synthetic fiber (gabba, warp yarn 178 dtex, 54 filaments, weft yarn 165 dtex, 48 filaments, density warp × width = 167 / 2.54 cm × 75 /2.54 cm) was dyed with disperse dye Disperse Blue PLG (Dystar Japan Co., Ltd.) and subjected to reduction washing and hot water washing.

Next, after the infrared absorbing material Kayasorb IRG-069 (diimonium compound, Nippon Kayaku Co., Ltd.) is dissolved in formic acid, the infrared absorbing material is dissolved so that it becomes a 0.1% aqueous solution of the infrared absorbing material. The formic acid solution thus prepared was added to water to obtain a treatment liquid (concentration of formic acid in the treatment liquid 10 g / l).
Antistatic agent Nicepol FE26 (manufactured by Nikka Chemical Co., Ltd.) was further added to the treatment liquid so that the amount added was 0.1%. The infrared absorbing material was dissolved in the treatment liquid, and the treatment liquid was in the state of an aqueous solution of the infrared absorbing substance.

Next, a treatment liquid containing an infrared absorbing material dissolved with an infrared absorbing material dissolving agent was applied to the fabric by a padding method using a padder. The pickup was 70%. Next, after drying at 120 ° C. for 30 seconds, a dry heat treatment was performed at 170 ° C. for 30 seconds.
Table 1 shows the infrared absorbing performance and the like of the obtained infrared absorbing fabric.
In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
Moreover, the pants were created using the obtained infrared absorptive fabric. The obtained pants had a sufficient anti-photographing performance.

Example 4
Fabric (gabba) obtained by using regular polyester fiber (PET) as synthetic fiber (warp yarn 178 dtex, 54 filaments, weft yarn 165 dtex, 48 filaments, density warp × width = 167 / 2.54 cm × 75 Book / 2.54 cm).

  After the infrared absorbing material IGR-068 (diimonium compound, Nippon Kayaku Co., Ltd.) is dissolved in the infrared absorbing material solubilizer (MEK), the amount of the infrared absorbing material is 0.1% omf with respect to the synthetic fiber. A treatment liquid containing an infrared absorbing material that was added to water and dissolved with an infrared absorbing material solubilizer was prepared (MEK concentration in the treatment liquid: 10 g / l). In the treatment liquid, water and MEK were separated, but the infrared absorbing substance was not precipitated in the treatment liquid but dissolved.

Using a liquid dyeing machine, the temperature of the treatment liquid was increased while immersing the fabric in the treatment liquid, and heat treatment was performed at 120 ° C. for 30 minutes. Then, it washed with water and obtained the infrared rays absorption fabric.
Table 1 shows the infrared absorption performance and the like of the obtained fabric.
In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
Pants were manufactured using the obtained infrared absorbing fabric. The obtained pants had a sufficient anti-photographing performance.

Example 5
Woven fabric (twill, density warp × width × 50 / 2.54cm ×) using Nomex (Aramid fiber, manufactured by DuPont Co., Ltd.) as a synthetic fiber (warp yarn 40 / twist, weft 40 / twist) 60 / 2.54 cm) of cationic dyes Kayacryl Yellow 3RL-ED 2.0% omf, Red GL-ED 1.0% omf, Blue FP-ED 5.0% omf (all manufactured by Nippon Kayaku Co., Ltd.) ), Followed by reduction washing and hot water washing.

  Next, after the infrared absorbing material Kayasorb IRG-022 (diimonium compound, manufactured by Nippon Kayaku Co., Ltd.) is dissolved in the infrared absorbing material dissolving agent (acetic acid: formic acid mixed solution = 1: 1), the infrared absorbing material Was added to water so that the amount of the solution was 0.05% omf with respect to the synthetic fiber, and a treatment liquid containing an infrared absorbing substance dissolved in an infrared absorbing substance dissolving agent was prepared (mixing of acetic acid and formic acid in the treatment liquid). Solution concentration 10 g / l). The infrared absorbing material was dissolved in the treatment liquid, and the treatment liquid was in the state of an aqueous solution of the infrared absorbing substance.

Using a liquid dyeing machine, the temperature of the treatment liquid was increased while immersing the fabric in the treatment liquid, and heat treatment was performed at 130 ° C. for 30 minutes. Thereafter, it was washed with water and dried to obtain an infrared absorbing fabric.
Table 1 shows the infrared absorbing performance and the like of the obtained infrared absorbing fabric.
In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
Moreover, the pants were created using the obtained infrared absorptive fabric. The obtained pants had a sufficient anti-photographing performance.

Example 6
Fabric obtained by using polyurethane fiber (PU) and cationic dyeable polyester fiber (CDP) (PU44 dtex, 1 filament, 16.3%, CDP56 dtex, 24 filament, 83.7%) as synthetic fibers (Tricot, 32 whales / 2.54 cm, 64 courses / 2.54 cm).

  Next, an infrared absorbing material NIR-AM1 (aminium compound, manufactured by Nagase ChemteX Corporation) was dissolved in an infrared absorbing material solubilizer (acetic acid), and then the cationic dye Kayacryl Yellow 3RL- with respect to the mass of the synthetic fiber. ED 2.0% omf, Red GL-ED 1.0% omf, Blue FP-ED 5.0% omf (all manufactured by Nippon Kayaku Co., Ltd.), amount of infrared absorbing substance 0.05% omf In this way, it was added to water, and 10 g / l of mirabilite was added to obtain a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent (acetic acid concentration in the treatment liquid was 10 g / l). The infrared absorbing material was dissolved in the treatment liquid, and the treatment liquid was in the state of an aqueous solution of the infrared absorbing substance.

Using a liquid dyeing machine, the temperature of the treatment liquid was increased while immersing the fabric in the treatment liquid, and heat treatment was performed at 130 ° C. for 30 minutes (simultaneous dyeing treatment). Thereafter, an infrared absorbing fabric was obtained by performing reduction washing and hot water washing.
Table 1 shows the infrared absorbing performance and the like of the obtained infrared absorbing fabric.
In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
Moreover, the swimsuit was created using the obtained infrared absorptive fabric. The obtained swimsuit had sufficient anti-passing performance.

Example 7
Instead of infrared absorbing material NIR-AM1 (aminium-based compound), Kayasorb IRG-022 (diimonium compound, Nippon Kayaku Co., Ltd.) is used, and sodium acetate 5 g / l is used instead of sodium sulfate. Except for the above, the operation of Example 6 was repeated to obtain an infrared absorbing fabric. The infrared absorbing material was dissolved in the treatment liquid, and the treatment liquid was in the state of an aqueous solution of the infrared absorbing substance.
Table 1 shows the infrared absorbing performance and the like of the obtained infrared absorbing fabric.

In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
Moreover, the swimsuit was created using the obtained infrared absorptive fabric. The obtained swimsuit had sufficient anti-passing performance.

Example 8
A fabric (tricot) obtained by using PU and CDP was prepared as a synthetic fiber (the same tricot as that used in Example 1).
Next, a solution in which an infrared absorbing substance was dissolved in an infrared absorbing substance dissolving agent (acetic acid) was prepared, and the dissolved infrared absorbing substance was mixed with the original paste to prepare a printing paste. In the printing paste, the infrared absorbing substance was dissolved (printing paste 1, 3).
The following printing pastes 1, 2, and 3 were applied to a three stripe pattern by a printing method using a screen printing machine (no white space left). The amount of the printing paste adhered to the synthetic fiber (fabric) was 200 g / m ² .

Infrared absorbing substance + Infrared absorbing substance dissolving agent Infrared absorbing substance (diimonium compound or aminium compound) 1.0%
Infrared absorbing material solubilizer (acetic acid) 99.0%
Original glue Cellpearl SL100 (Guar gum glue, Adachi glue) 10%
Reducer 50%
40% water
Reducer Turpen 70%
Emulsifier 20%
10% water

Printing paste 1 (printing paste containing an infrared absorbing material dissolved with an infrared absorbing material dissolving agent)
Infrared absorbing material: NIR-IM1 (diimonium-based compound, manufactured by Nagase ChemteX Corporation)
Original paste 60%
Infrared absorbing material + Infrared absorbing material solubilizer 30%
Dianix Yellow P-6G liq 1%
(Dystar Japan Co., Ltd., dye)
9% water

Printing paste 2
Original paste 60%
Dianix Red S-BEL liq 1%
(Dystar Japan Co., Ltd., dye)
Water 39%

Printing paste 3 (printing paste containing an infrared absorbing material dissolved with an infrared absorbing material dissolving agent)
Infrared absorbing material: Infrared absorbing material NIR-AM1 (Aminium compound, Nagase ChemteX Corporation)
Original paste 60%
Infrared absorbing material + Infrared absorbing material solubilizer 30%
Miketon Polyester Blue TSF 1%
(Dystar Japan Co., Ltd., dye)
9% water

Next, a dry heat treatment was performed at 170 ° C. for 15 minutes, followed by reduction cleaning and soaping, followed by drying and finishing setting to obtain an infrared absorbing fabric. Table 1 shows the infrared absorption amount and the like of the obtained infrared absorbing fabric.
In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
A swimsuit was produced using the obtained infrared absorbing fabric. The part to which the printing paste 1 was applied was sewn so as to be the chest, the part to which the printing paste 2 was applied was the abdomen, and the part to which the printing paste 3 was applied was the lower abdomen. The obtained swimsuit had excellent anti-passing performance in the chest and lower abdomen.

Comparative Example 3
A fabric (tricot) obtained using PU and CDP as synthetic fibers was prepared (tricot similar to that used in Example 1).
The following printing pastes 1, 2, and 3 were applied to a three stripe pattern by a printing method using a screen printing machine (no white space left). The amount of the printing paste adhered to the synthetic fiber (fabric) was 200 g / m ² .

Printing paste 1
Dexcel Clear 3301EX 80.0%
(Dainippon Ink Chemical Co., Ltd., binder resin)
Infrared absorbing material NIR-IM1 (diimonium compound, manufactured by Nagase ChemteX Corporation) 0.5%
Ryudye Yellow FF7G 1.0%
(Dainippon Ink Chemical Co., Ltd., pigment)
Dexcel Agent 2K 2.0%
(Dainippon Ink Chemical Co., Ltd., binder crosslinking agent)
Dexcel Agent 15V 1.0%
(Dainippon Ink & Chemicals, Inc., thickener)
15.5% water

Printing paste 2
Dexcel Clear 3301EX 80.0%
(Dainippon Ink Chemical Co., Ltd., binder resin)
Ryudye Red FFGR 1.0%
(Dainippon Ink Chemical Co., Ltd., pigment)
Dexcel Agent 2K 2.0%
(Dainippon Ink Chemical Co., Ltd., binder crosslinking agent)
Dexcel Agent 15V 1.0%
(Dainippon Ink & Chemicals, Inc., thickener)
Water 16.0%

Printing paste 3
Dexcel Clear 3301EX 80.0%
(Dainippon Ink Chemical Co., Ltd., binder resin)
Infrared absorbing material NIR-AM1 (Aminium compound, Nagase ChemteX Corporation)
0.5%
Ryudye Blue FF2R 1.0%
(Dainippon Ink Chemical Co., Ltd., pigment)
Dexcel Agent 2K 2.0%
(Dainippon Ink Chemical Co., Ltd., binder crosslinking agent)
Dexcel Agent 15V 1.0%
(Dainippon Ink & Chemicals, Inc., thickener)
15.5% water

Next, dry heat treatment was performed at 170 ° C. for 30 seconds, and finishing set was performed to obtain an infrared absorbing fabric. Table 1 shows the infrared absorption amount and the like of the obtained infrared absorbing fabric.
Further, when the obtained infrared absorbing fabric was touched by hand, the texture was harder and heavier than that obtained in Example 8.

Example 9
Fabric using regular-polyester fibers (PET) as synthetic fibers (gabbers, warp yarn 178 dtex, 54 filaments, weft yarn 165 dtex, 48 filaments, density warp × width × 167 / 2.54 cm × 75/2. 54 cm) was used.
Next, a solution in which the infrared absorbing material was dissolved in an infrared absorbing material dissolving agent (acetic acid: formic acid = 1: 1) was prepared, and this solution was mixed with the original paste to prepare a printing paste. In the printing paste, the infrared absorbing substance was dissolved (printing paste 1, 2, 3, 4).
The following printing pastes 1, 2, 3, and 4 were applied in a camouflage pattern by a printing method using a screen printing machine. The amount of the printing paste adhered to the synthetic fiber (fabric) was 200 g / m ² .

Infrared absorbing substance + Infrared absorbing substance dissolving agent Infrared absorbing substance (diimonium compound or aminium compound) 1.0%
Infrared absorbing substance solubilizer (acetic acid: formic acid = 1: 1) 99.0%
Original glue Cellpearl SL100 (Guar gum glue, Adachi glue) 10%
Reducer 50%
40% water
Reducer Turpen 70%
Emulsifier 20%
10% water

Printing paste 1 (printing paste containing infrared absorbing material dissolved in infrared absorbing material dissolving agent: beige)
Infrared absorbing material Kayasorb IRG-069 (diimonium compound, manufactured by Nippon Kayaku Co., Ltd.)
Original paste 60.0%
Infrared absorbing material + Infrared absorbing material solubilizer 35.0%
Disperse Orange 30 liq 2.7%
(Yorkshire, dye)
Dianix Red S-BEL liq 0.3%
(Dystar Japan Co., Ltd., dye)
Kayalon Polyester Blue 2R-SR p 1.7%
(Nippon Kayaku Co., Ltd., dye)
Water 0.3%

Printing paste 2 (printing paste containing an infrared absorbing material dissolved with an infrared absorbing material dissolving agent: green)
Infrared absorbing material Kayasorb IRG-069 (diimonium compound, Nippon Kayaku Co., Ltd.))
Original paste 60.0%
Infrared absorbing material + Infrared absorbing material solubilizer 25.0%
Disperse Orange 30 liq 4.8%
(Yorkshire, dye)
Kayalon Polyester Blue 2R-SR p 4.1%
(Nippon Kayaku Co., Ltd., dye)
Water 6.1%

Printing paste 3 (printing paste containing infrared absorbing material dissolved in infrared absorbing material dissolving agent: Brown)
Infrared absorbing material NIR-AM1 (Aminium compound, Nagase ChemteX Corporation)
Original paste 60.0%
Infrared absorbing material + Infrared absorbing material solubilizer 15.0%
Dispers Orange 30 liq 7.2%
(Yorkshire, dye)
Dianix Red S-BEL liq 4.5%
(Dystar Japan Co., Ltd., dye)
Kayalon Polyester Blue 2R-SR p 4.3%
(Nippon Kayaku Co., Ltd., dye)
9.0% water

Printing paste 4 (printing paste containing infrared absorbing material dissolved in infrared absorbing material dissolving agent: black)
Infrared absorbing material NIR-AM1 (Aminium compound, manufactured by Nagase ChemteX Corporation)
Original paste 60.0%
Infrared absorbing material + Infrared absorbing material solubilizer 5.0%
Disperse Orange 30 liq 7.5%
(Yorkshire, dye)
Dianix Red S-BEL liq 5.0%
(Dystar Japan Co., Ltd., dye)
Kayalon Polyester Blue 2R-SR p 10.8%
(Nippon Kayaku Co., Ltd., dye)
Water 11.7%

Next, dry heat treatment was performed at 170 ° C. for 15 minutes, followed by reduction cleaning and soaping, followed by drying, water repellency processing by padding using Asahi Guard AG710, and finishing setting to obtain an infrared absorbing fabric. . Table 1 shows the infrared absorption amount and the like of the obtained infrared absorbing fabric.
In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
An infrared camouflage garment was manufactured using the obtained infrared absorbing fabric.

Example 10
As a synthetic fiber, a woven fabric obtained by using PET (both taffeta, warp and weft, 56 dtex, 48 filaments, density warp × width × 164 / 2.54 cm × 118 / 2.54 cm) was used.
After the infrared absorbing material NIR-AM1 (aminium compound, Nagase ChemteX Corporation) is dissolved in the infrared absorbing material dissolving agent (acetic acid), the amount of the infrared absorbing material is 0.3% with respect to the mass of the synthetic fiber. It was added to water so as to be omf, and a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent was obtained (acetic acid concentration in the treatment liquid was 30 g / l). The infrared absorbing material was dissolved in the treatment liquid, and the treatment liquid was in the state of an aqueous solution of the infrared absorbing substance.

Using a liquid dyeing machine, heat treatment was performed at 130 ° C. for 30 minutes while immersing synthetic fibers (woven fabric) in the treatment liquid. Thereafter, it was washed with water and dried to obtain an infrared absorbing fabric. Furthermore, an antistatic treatment was performed using a 0.1% aqueous solution of the antistatic agent Nicepol FE26 (manufactured by Nikka Chemical Co., Ltd.).
Although the texture of the obtained infrared absorption fabric was confirmed by hand, it was soft and light.

Moreover, the temperature rise by infrared irradiation of the obtained infrared absorption fabric was 40 degreeC (measurement temperature 50 degreeC) at the time of no wind, and 22 degreeC (measurement temperature 32 degreeC) at the wind speed of 1 m / min. Further, when the treatment with the treatment liquid containing the infrared absorbing substance dissolved in the infrared absorbing substance solubilizer was not performed, the temperature increase due to infrared irradiation was measured for the obtained treated fabric in the same manner as in Example 10. In the absence of wind, it is 30 ° C. (measurement temperature 40 ° C.), and when the wind speed is 1 m / min, it is 17 ° C. (measurement temperature 27 ° C.). The fabric had a temperature increase of 10 ° C. when there was no wind and 5 ° C. at a wind speed of 1 m / min. These results are summarized in Table 2.
A jacket was produced using the obtained infrared absorbing fabric for the lining, and was worn, and it was felt warmer than the jacket using the treated fabric that was not treated with the infrared absorbing material for the lining.

Example 11
Disperse dye Disperse Blue PLG was obtained by using taffeta (vertical yarn 56 dtex, 48 filaments, vertical length × width = 164 / 2.54 cm × 118 / 2.54 cm) obtained using regular polyester fiber (PET) as a synthetic fiber. (Dystar Japan Co., Ltd.) It dye | stained by 0.5% omf, and the reducing dye and hot water washing were performed.

  Next, after the infrared absorbing material NIR-AM1 (aminium compound, manufactured by Nagase Chemtex Co., Ltd.) is dissolved in an infrared absorbing material solubilizer (acetic acid), the amount of the infrared absorbing material is reduced to 0. 0 to the synthetic fiber. It was added to water so that it might become 1% omf, and it was set as the process liquid containing the infrared rays absorbing substance melt | dissolved with the infrared rays absorbing substance solubilizer (Acetic acid concentration in a processing liquid 10g / l). The infrared absorbing material was dissolved in the treatment liquid, and the treatment liquid was in the state of an aqueous solution of the infrared absorbing substance.

Using a liquid dyeing machine, the temperature of the treatment liquid was increased while immersing the fabric in the treatment liquid, and heat treatment was performed at 80 ° C. for 60 minutes. Thereafter, it was washed with water and dried to obtain an infrared absorbing fabric. Further, an antistatic treatment was performed by a padding method using a 0.1% aqueous solution of an antistatic agent, Nicepol FE26 (manufactured by Nikka Chemical Co., Ltd.).
The temperature increase due to infrared irradiation of the obtained infrared absorbing fabric was 38 ° C. (measurement temperature 48 ° C.) when no wind was applied, and 23 ° C. (measurement temperature 33 ° C.) when the wind speed was 1 m / min. Further, when the treatment with the treatment liquid containing the infrared absorbing substance dissolved with the infrared absorbing substance dissolving agent was not performed, the temperature rise due to infrared irradiation was measured for the obtained treated fabric in the same manner as in Example 11. In the absence of wind, the temperature is 32 ° C. (measurement temperature 42 ° C.), and when the wind speed is 1 m / min, the temperature is 17 ° C. (measurement temperature 27 ° C.). The fabric had a temperature increase of 6 ° C. when there was no wind and 6 ° C. at a wind speed of 1 m / min. These results are summarized in Table 2.

In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
Using the obtained infrared absorbing fabric as a lining, a parasol was manufactured and used, but the infrared rays were absorbed and the temperature of the fabric surface increased. However, under the parasol, infrared transmission was prevented, so it felt cool. It was.

Example 12
A rib knitting of acrylic / wool (mixing ratio 70/30) dyed in black obtained using 70% acrylic fiber as a synthetic fiber was used. Further, after the infrared absorbing material NIR-AM1 (aminium compound, manufactured by Nagase ChemteX Corp.) is dissolved in an infrared absorbing material solubilizer (acetic acid), the amount of the infrared absorbing material is 0.3 with respect to the synthetic fiber. % Omf was added to water to prepare a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent (acetic acid concentration in the treatment liquid was 30 g / l). The infrared absorbing material was dissolved in the treatment liquid, and the treatment liquid was in the state of an aqueous solution of the infrared absorbing substance.

Using a liquid dyeing machine, the temperature of the treatment liquid was increased while immersing the fabric in the treatment liquid, and heat treatment was performed at 90 ° C. for 60 minutes. Thereafter, it was washed with water and dried to obtain an infrared absorbing fabric.
Moreover, the temperature increase by infrared irradiation of the obtained infrared absorption fabric was 53 ° C. (measurement temperature 63 ° C.) when no wind was applied, and 33 ° C. (measurement temperature 43 ° C.) when the wind speed was 1 m / min. Further, when the treatment with the treatment liquid containing the infrared absorbing substance dissolved in the infrared absorbing substance dissolving agent was not performed, the temperature increase due to infrared irradiation was measured for the obtained treated fabric in the same manner as in Example 12. In the absence of wind, it is 43 ° C. (measurement temperature 53 ° C.), and when the wind speed is 1 m / min, it is 27 ° C. (measurement temperature 37 ° C.). Compared with the treated fabric that was not treated with the infrared absorbing material, the infrared absorption of this example The fabric had a temperature rise of 10 ° C. when there was no wind and 6 ° C. when the wind speed was 1 m / min. These results are summarized in Table 2.

In addition, although the texture of this infrared absorption fabric was confirmed by hand, it was soft.
When a sweater was manufactured and worn using the obtained infrared absorbing fabric, it was felt warmer than a sweater using a treated fabric that was not treated with an infrared absorbing material.

Example 13
Plain fabric woven in yellow obtained using aramid fibers as synthetic fibers (manufactured by Toray DuPont Co., Ltd., Kevlar, filament, warp yarn 1670 decitex, weft yarn 1670 decitex, density warp × width = 22 / 2.54 cm × 22 / 2.54 cm).

  After the infrared absorbing material NIR-AM1 (aminium compound, manufactured by Nagase ChemteX Corporation) is dissolved in the infrared absorbing material dissolving agent (formic acid), the amount of the infrared absorbing material is 0.1% omf with respect to the synthetic fiber. The resulting solution was added to water so as to obtain a treatment liquid containing an infrared absorbing substance dissolved with an infrared absorbing substance dissolving agent (formic acid concentration in the treatment liquid was 10 g / l). The infrared absorbing material was dissolved in the treatment liquid, and the treatment liquid was in the state of an aqueous solution of the infrared absorbing substance.

Using a liquid dyeing machine, the temperature of the treatment liquid was increased while immersing the fabric in the treatment liquid, and heat treatment was performed at 135 ° C. for 60 minutes. Thereafter, it was washed with water and dried to obtain an infrared absorbing fabric.
Moreover, the temperature rise by infrared irradiation of the obtained infrared absorption fabric was 47 ° C. (measurement temperature 57 ° C.) when no wind was applied, and 26 ° C. (measurement temperature 36 ° C.) when the wind speed was 1 m / min. Further, when the treatment with the treatment liquid containing the infrared absorbing substance dissolved in the infrared absorbing substance dissolving agent was not performed, the temperature increase due to infrared irradiation was measured for the obtained treated fabric in the same manner as in Example 13. In the absence of wind, the temperature is 38 ° C. (measurement temperature 48 ° C.), and when the wind speed is 1 m / min, the temperature is 20 ° C. (measurement temperature 30 ° C.). The fabric had a temperature increase of 9 ° C. when there was no wind and 6 ° C. when the wind speed was 1 m / min. These results are summarized in Table 2.

In addition, although the texture of this infrared rays absorption fabric was confirmed by hand, the texture was not hardened compared with the thing which does not process with the process liquid containing an infrared rays absorption substance.
When a glove was produced and worn using the obtained infrared absorbing cloth, it was felt warmer than a glove using a treated cloth that was not treated with an infrared absorbing substance.

  According to the present invention, it is possible to provide an infrared-absorbing fabric that has a soft texture, is light, and is excellent in durability. Therefore, the present invention is industrially useful.

Claims (7)

  An infrared-absorbing fabric obtained by applying a dissolved infrared-absorbing substance to a synthetic fiber.   The infrared ray absorbing cloth according to claim 1, wherein the infrared ray absorbing substance is at least one selected from the group consisting of a diimonium compound and an aminium compound.   A method for producing an infrared-absorbing fabric, comprising performing heat treatment at a temperature of 40 to 150 ° C while immersing synthetic fibers in a treatment liquid containing an infrared-absorbing substance dissolved in an infrared-absorbing substance-dissolving agent.   An infrared-absorbing fabric produced by applying a treatment liquid containing an infrared-absorbing substance dissolved in an infrared-absorbing substance-dissolving agent to a synthetic fiber by a padding method or a spray method, and then performing a heat treatment at a temperature of 40 to 210 ° C. Method.   A method for producing an infrared-absorbing fabric, comprising: applying a printing paste containing an infrared-absorbing substance dissolved in an infrared-absorbing substance-dissolving agent to a synthetic fiber by a printing method, and then performing a heat treatment at a temperature of 70 to 210 ° C.   The method for producing an infrared-absorbing fabric according to any one of claims 3 to 5, wherein the infrared-absorbing substance-dissolving agent contains at least one selected from the group consisting of an organic acid, methyl alcohol, ethyl alcohol, isopropyl alcohol, and methyl ethyl ketone.   A garment manufactured using at least a part of the infrared absorbing fabric according to claim 1.