Fabric with lining fabric or garment with lining fabric

Abstract

To provide such a garment made of a fabric containing an infrared absorbing pigment as to allow a wearer to feel a temperature rise of an external surface due to light irradiation as a warm feeling, or the fabric for the garment.SOLUTION: A fabric with a lining fabric or a garment with a lining fabric comprises an infrared absorbing fabric including an infrared absorbing knitted or woven fabric or nonwoven fabric which contains an infrared absorbing pigment as a face fabric, and a fabric made of fibers having an official moisture regain of 2.5 mass% or more as a lining fabric.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an exothermic lined fabric or lined garment. [Background technology]

[0002] Fibers containing an infrared absorbing pigment have the function of converting near-infrared rays contained in sunlight and the like into heat. Clothing made using such fibers generates heat when irradiated with light, and can provide a comfortable heat-retaining effect for the wearer.

[0003] For example, Patent Document 1 describes a near-infrared absorbing fiber that contains composite tungsten oxide particles on the surface and / or inside, and explains that a knitted fabric made from this fiber absorbs sunlight and increases the temperature of the back surface.

[0004] Patent Document 2 describes an infrared absorbing resin composition containing a tungsten-based infrared absorbing pigment and a crystalline copolymerized polyethylene terephthalate, and explains that this composition has good spinning properties and that a fabric obtained from this composition exhibits good infrared absorption properties (anti-voyeurism properties).

[0005] The composite tungsten oxide particles or tungsten-based infrared absorbing pigments described in Patent Documents 1 and 2 have low visibility under visible light, and can impart infrared absorbency to fabrics or clothing without impairing the design. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2006-132042 A [Patent Document 2] International Publication No. 2019 / 160109 Summary of the Invention [Problem to be solved by the invention]

[0007] The clothes obtained using the technologies of Patent Documents 1 and 2 have a heat-retaining effect when irradiated with light, and are therefore expected to be used as cold weather clothing, etc. However, these clothes have a drawback in that even if the temperature of the outer surface rises when irradiated with light, it is difficult to feel the temperature rise inside the clothes.

[0008] The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide clothing or a fabric therefor, which uses a fabric containing an infrared absorbing pigment and enables the wearer to feel a rise in temperature of the outer surface due to irradiation with light as a warm sensation. [Means for solving the problem]

[0009] The present invention is as follows.

[0010] <<Aspect 1>> An infrared absorbing fabric including an infrared absorbing knitted or nonwoven fabric containing an infrared absorbing pigment is provided as a surface material, The lining is made of fabric made of fibers with an official moisture content of 2.5% by mass or more. Lined fabric or lined garment. Aspect 2: The content of the infrared absorbing pigment in the infrared absorbing material is 0.05 g / m per area of ​​the infrared absorbing material. 2 More than 0.50g / m 2 2. The lined fabric or lined garment of embodiment 1, wherein: Aspect 3: The infrared absorbing pigment is General formula M x W y O z (1) In the formula (1), M is one or more elements selected from the group consisting of H, He, an alkali metal element, an alkaline earth metal element, a rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi, and I; W is tungsten; O is oxygen; x, y, and z are each a positive number and 0 <x / y≦1であり、かつ2.2≦z / y≦3.0である} A composite tungsten oxide represented by the formula: General formula W y O z (2) {In the formula (2), W is tungsten, O is oxygen, y and z are each a positive number, and 2.45≦z / y≦2.999.} Tungsten oxide having a Magneli phase represented by 2. The lined fabric or lined garment of claim 1, comprising one or more selected from the group consisting of: Aspect 4: The lined fabric or lined garment according to any one of aspects 1 to 3, wherein the infrared absorbing woven or nonwoven fabric comprises a fiber selected from polyethylene terephthalate and nylon. Aspect 5: The lined fabric or lined garment according to any one of Aspects 1 to 3, wherein the infrared absorbing woven or nonwoven fabric is made of fibers containing the infrared absorbing pigment. Aspect 6: The lined fabric or lined garment of any one of Aspects 1 to 3, wherein the infrared absorbing woven fabric or nonwoven fabric is composed of fibers that contain the infrared absorbing pigment and fibers that do not contain the infrared absorbing pigment. Aspect 7: The lined fabric or lined garment of aspect 6, wherein the fiber not containing the infrared absorbing pigment has a configuration in which the infrared absorbing pigment has been removed from the fiber containing the infrared absorbing pigment. Aspect 8: The lined fabric or lined garment according to any one of Aspects 1 to 3, wherein the infrared absorbing fabric is composed of the infrared absorbing woven fabric or nonwoven fabric. Aspect 9: The lined fabric or lined garment according to any one of Aspects 1 to 3, wherein the infrared absorbing fabric is composed of the infrared absorbing woven fabric or nonwoven fabric, and a woven fabric or nonwoven fabric that does not contain an infrared absorbing pigment. Aspect 10: The lined fabric or lined garment of Aspect 9, wherein the woven fabric or nonwoven fabric that does not contain the infrared absorbing pigment has a configuration in which the infrared absorbing pigment has been removed from the infrared absorbing woven fabric or nonwoven fabric. Effect of the Invention

[0011] According to the present invention, there is provided clothing or a fabric therefor, which uses a fabric containing an infrared absorbing pigment and enables a wearer to feel a rise in temperature of the outer surface due to light irradiation as a warm sensation. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] <<Lined fabric or lined garment>> The lined fabric or lined garment of the present invention comprises: The infrared absorbing material includes an infrared absorbing knitted or woven fabric or nonwoven fabric containing an infrared absorbing pigment as a surface material, The lining is made of fabric made of fibers with an official moisture content of 2.5% by mass or more. A lined fabric or a lined garment.

[0013] The infrared absorbing outer fabric has the function of absorbing infrared rays and generating heat. The lining fabric composed of fibers with an official moisture content of 2.5% by mass or more has moisture absorbing and heat generating properties. It is believed that the lined fabric or lined garment of the present invention allows the wearer to feel the rise in temperature of the outer surface due to light irradiation as a warm sensation due to the synergistic effect of the infrared absorbing and heat generating properties of the outer fabric and the moisture absorbing and heat generating properties of the lining.

[0014] However, the present invention is not bound to any particular theory.

[0015] In this specification, the term "woven fabric" includes both woven fabric and knitted fabric. The term "nonwoven fabric" refers to a sheet-like material made by intertwining fibers, and does not include woven fabric or knitted fabric. Hereinafter, fibers, woven fabrics, and nonwoven fabrics may be collectively referred to as "textile products."

[0016] The elements constituting the lined fabric or lined garment of the present invention will be described below.

[0017] Outer fabric The outer material in the lined fabric or lined garment of the present invention is an infrared absorbing fabric comprising an infrared absorbing knitted or nonwoven fabric containing an infrared absorbing pigment.

[0018] (Infrared absorbing pigment) The infrared absorbing pigment contained in the outer material of the present invention preferably has the properties of absorbing infrared rays, preferably near infrared rays, and emitting heat, and also has a bright color tone and does not excessively impair the freedom in design of the infrared absorbing fiber product of the present invention.

[0019] Examples of such infrared absorbing pigments include: General formula M x W y O z (1) In the formula (1), M is one or more elements selected from the group consisting of H, He, an alkali metal element, an alkaline earth metal element, a rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi, and I; W is tungsten; O is oxygen; x, y, and z are each a positive number and 0 <x / y≦1であり、かつ2.2≦z / y≦3.0である} A composite tungsten oxide represented by General formula W y O z (2) {In the formula (2), W is tungsten, O is oxygen, y and z are each a positive number, and 2.45≦z / y≦2.999.} Tungsten oxide having a Magneli phase represented by etc., and one or more of these may be appropriately selected and used.

[0020] Here, the alkali metal elements are elements in Group 1 of the periodic table excluding hydrogen atoms, the alkaline earth metal elements are elements in Group 2 of the periodic table excluding Be and Mg, and the rare earth elements are Sc, Y, and tantanide elements.

[0021] The composite tungsten oxide represented by the general formula (1) contains the element M. As a result, free electrons are generated, and an absorption band derived from these free electrons appears in the near-infrared wavelength region, making it suitable as a material that absorbs near-infrared rays with a wavelength of about 1,000 nm and generates heat.

[0022] If the value of x / y, which indicates the amount of element M added, is greater than 0, a sufficient amount of free electrons are generated and the near-infrared absorbing effect can be obtained sufficiently. The larger the amount of element M added, the greater the supply of free electrons and the greater the near-infrared absorbing effect, but the value of x / y is saturated at about 1. If the value of x / y is 1 or less, it is preferable because it is possible to avoid the generation of an impurity phase in the fine particle-containing layer. The value of x / y is preferably 0.001 or more, 0.2 or more, or 0.30 or more, and this value is preferably 0.85 or less, 0.5 or less, or 0.35 or less. The value of x / y is ideally 0.33.

[0023] In particular, when the element M in the general formula (1) is one or more of Cs, Rb, K, Tl, In, Ba, Li, Ca, Sr, Fe, and Sn, it is preferable from the viewpoint of improving the optical properties and weather resistance as a near-infrared absorbing material, and it is particularly preferable when M is Cs.

[0024] Cs x W y O zWhen (0.25≦x / y≦0.35, 2.2≦z / Y≦3.0), it is preferable that the lattice constants of the a-axis be 7.4060 Å or more and 7.4082 Å or less, and the c-axis be 7.6106 Å or more and 7.6149 Å or less, in terms of optical properties in the near infrared region and weather resistance.

[0025] When the composite tungsten oxide represented by the general formula (1) has a hexagonal crystal structure or is composed of a hexagonal crystal structure, the infrared absorbing material fine particles have improved transmission in the visible light wavelength region and improved absorption in the near infrared wavelength region, which is preferable. When the cations of element M are added and present in the voids of the hexagonal crystal, the transmission in the visible light wavelength region is improved and the absorption in the near infrared wavelength region is improved. Here, generally, when an element M having a large ionic radius is added, a hexagonal crystal is formed. Specifically, when an element having a large ionic radius such as Cs, Rb, K, Tl, In, Ba, Sn, Li, Ca, Sr, or Fe is added, a hexagonal crystal is easily formed. However, it is not limited to these elements, and even if an element other than these elements is added, it is sufficient that the added element M exists in the hexagonal voids formed by the WO6 units.

[0026] When the composite tungsten oxide having a hexagonal crystal structure has a uniform crystal structure, the amount of the additive element M is preferably 0.2 or more and 0.5 or less, more preferably 0.30 or more and 0.35 or less, and ideally 0.33, in terms of the value of x / y. When the value of x / y is 0.33, it is considered that the additive element M is arranged in all of the hexagonal voids.

[0027] It is preferable that the composite tungsten oxide represented by the general formula (1) is treated with a silane coupling agent, since this has excellent dispersibility, near-infrared absorptivity, and transparency in the visible light wavelength region.

[0028] In the tungsten oxide having the Magneli phase represented by the general formula (2), the so-called "Magneli phase" having a composition ratio where the value of z / y satisfies the relationship of 2.45≦z / y≦2.999 is chemically stable and has good absorption characteristics in the near-infrared light wavelength region, and is therefore preferable as a near-infrared absorbing material.

[0029] In general formulas (1) and (2), the value of z / y indicates the level of oxygen content control. Since the z / y value of the composite tungsten oxide represented by general formula (1) satisfies the relationship of 2.2≦z / y≦3.0, in addition to the same oxygen control mechanism as that of the tungsten oxide represented by general formula (2), even when z / y=3.0, free electrons are supplied by adding element M. In general formula (1), it is more preferable that the z / y value satisfies the relationship of 2.45≦z / y≦3.0.

[0030] In addition, due to the raw material compound used in the manufacture of the composite tungsten oxide and tungsten oxide of the present invention, some of the oxygen atoms constituting the composite tungsten oxide and tungsten oxide may be replaced with halogen atoms.However, this does not cause any problem in the implementation of the present invention.Therefore, the composite tungsten oxide and tungsten oxide of the present invention also include the case where some of the oxygen atoms are replaced with halogen atoms.

[0031] The infrared absorbing pigment of the present invention largely absorbs light in the near infrared wavelength region, particularly at wavelengths around 1,000 nm, and therefore the transmitted color tone is often blue to green. However, since this coloring is pale, the infrared absorbing fiber product of the present invention containing the infrared absorbing pigment can provide a desirable design when applied to clothing such as cold weather clothing.

[0032] The content of the infrared absorbing pigment in the infrared absorbing fiber product of the present invention will be described later.

[0033] (woven or nonwoven fabric) The infrared absorbing textile product (woven or nonwoven fabric) of the present invention is a textile product containing an infrared absorbing pigment. This textile product may be a textile product made of synthetic fibers, semi-synthetic fibers, natural fibers, unbleached fibers, inorganic fibers, etc., or a mixed yarn containing a plurality of types of these. In consideration of the dispersibility of the infrared absorbing pigment and the heat retention properties of the textile product, among these, textile products made of synthetic fibers are preferred.

[0034] Examples of the synthetic fibers include polyester fibers, polyolefin fibers, acrylic fibers, polyamide fibers, polyether ester fibers, polyvinyl alcohol fibers, polyvinylidene chloride fibers, polyvinyl chloride fibers, and the like, and any one of these may be appropriately selected for use.

[0035] The polyester fiber may be, for example, a fiber of polyethylene terephthalate (PET), polybutylene terephthalate, polyethylene naphthalate, or the like.

[0036] The polyolefin fibers may be, for example, polyethylene, polypropylene, polystyrene, or the like fibers.

[0037] The acrylic fibers may be, for example, fibers made of polyacrylonitrile, acrylonitrile / vinyl chloride copolymer, or the like.

[0038] The polyamide fibers may be, for example, fibers made of nylon, nylon 6, nylon 66, nylon 11, nylon 12, nylon 610, aramid, or the like.

[0039] The textile product according to the invention may in particular comprise fibers selected from polyethylene terephthalate and nylon.

[0040] When the textile product contains polyethylene terephthalate (PET), the PET may contain one or two selected from polyethylene terephthalate homopolymer (PET homopolymer) and copolymerized polyethylene terephthalate (copolymerized PET). The intrinsic viscosity of the PET homopolymer may be 0.60 dL / g or more or 0.64 dL / g or more, and may be 0.70 dL / g or less. The intrinsic viscosity of the copolymerized PET may be 0.60 dL / g or more, and may be 1.30 dL / g or less. In addition, the copolymerized PET may be crystalline from the viewpoint of exhibiting good physical properties.

[0041] The fibers constituting the textile product may have a cross-section of any shape, such as circular, polygonal, flat, hollow, Y-shaped, star-shaped, sheath-core, etc.

[0042] The fibers constituting the textile product may be short or long fibers.

[0043] The textile product of the present invention is, for example, It may be woven in plain weave, satin, twill, etc.; It may be a knit such as a chain stitch, a knit stitch, a rib stitch, a double stitch, a regular double stitch, a slip stitch, a tricot, etc.; The nonwoven fabric may be one produced by any suitable method, such as a dry method, a wet method, a spunbond method, a melt-blowing method, a thermal bond method, a chemical bond method, a needle punch method, a spunlace method, a stitch bond method, or a steam jet method.

[0044] (Infrared absorbing woven or nonwoven fabric) An infrared absorbing textile product is a textile product as described above, at least in part of which contains an infrared absorbing pigment.

[0045] The content of the infrared absorbing pigment in the infrared absorbing textile product is 0.05 g / m per area of ​​the infrared absorbing textile product. 2 More than 0.50g / m 2 This value may be 0.05 g / m or less to achieve comfortable heat generation. 2 More than 0.06g / m 2 More than 0.08g / m 2 More than 0.10g / m 2 More than 0.12g / m 2 More than 0.15g / m 2 or more than 0.20 g / m 2 On the other hand, from the viewpoint of limiting the visibility of the color of the infrared absorbing pigment and ensuring the freedom of design in the obtained clothing, the content of the infrared absorbing pigment in the infrared absorbing textile product is 1.00 g / m per area of ​​the infrared absorbing textile product. 2 Below 0.80g / m 2Below 0.60g / m 2 Below 0.50g / m 2 Below, 0.48g / m 2 Below, 0.46g / m 2 Below, 0.44g / m 2 Below, 0.42g / m 2 or less than 0.40 g / m 2 It may be the following:

[0046] Infrared absorbing textile products are It may be composed only of fibers containing infrared absorbing pigments, The fiber may be composed of fibers containing an infrared absorbing pigment and fibers not containing an infrared absorbing pigment.

[0047] When an infrared absorbing textile product is composed of a fiber containing an infrared absorbing pigment and a fiber not containing an infrared absorbing pigment, the fiber not containing an infrared absorbing pigment may have a structure in which the infrared absorbing pigment is removed from the infrared absorbing fiber, or may be made of a different material. However, in order to ensure freedom of design when applied to clothing, the fiber not containing an infrared absorbing pigment may have a structure in which the infrared absorbing pigment is removed from the infrared absorbing fiber.

[0048] (Method of manufacturing infrared absorbing woven or nonwoven fabric) The infrared absorbing fiber product of the present invention may be produced by any known method or a method with appropriate modifications made by a person skilled in the art.

[0049] The infrared absorbing fiber product of the present invention is, for example, (1) A method for obtaining knitted fabrics by knitting infrared absorbing fibers; (2) A method for obtaining a woven fabric by weaving infrared absorbing fibers or infrared absorbing fibers with fibers not containing infrared absorbing pigments; (3) A method of obtaining a nonwoven fabric by a suitable means such as a fleece forming method or a fleece bonding method using infrared absorbing fibers or infrared absorbing fibers and fibers not containing infrared absorbing pigments; (4) A method of applying a coating liquid containing an infrared absorbing pigment to a textile product that does not contain an infrared absorbing pigment; It may be produced by such methods.

[0050] The coating liquid used in the method (4) may contain, for example, an infrared absorbing pigment and a suitable solvent, and may further contain a binder polymer or the like, if necessary, in order to improve adhesion between the infrared absorbing pigment and the textile product.

[0051] The infrared absorbing textile product of the present invention may contain a colorant such as a suitable pigment or dye. The colorant may be applied at any time during the manufacturing process of the infrared absorbing textile product. In particular, in the method (4) using a coating liquid, the colorant may be contained in the coating liquid.

[0052] The infrared absorbing fiber product of the present invention is preferably manufactured using infrared absorbing fibers having an infrared absorbing pigment kneaded into the fibers, from the viewpoint of having a high degree of durability such that the infrared absorbing pigment does not fall off or dissipate even with continuous use.

[0053] Such an infrared absorbing fiber may be produced by any method. As a typical example, a method for producing an infrared absorbing fiber containing an infrared absorbing pigment, a PET homopolymer, and a copolymerized PET is described below. However, the method for producing the infrared absorbing fiber is not limited thereto.

[0054] The infrared absorbing fiber containing the infrared absorbing pigment, the PET homopolymer, and the copolymerized PET can be, for example, preparing a masterbatch comprising an infrared absorbing pigment and a copolymerized PET; preparing a mixture of the masterbatch and a PET homopolymer; and melt spinning the mixture to obtain infrared absorbing fibers.

[0055] The preparation of the masterbatch may be carried out by a suitable kneader, for example, a batch type kneader such as a kneader, a Henschel mixer, or a mixing roll; or a continuous type kneader such as a twin screw extruder or a single screw extruder. The preparation of the mixture of the masterbatch and the PET homopolymer may be carried out, for example, by dry blending. The melt spinning of the mixture of the masterbatch and the PET homopolymer may be carried out using a suitable known melt spinning device.

[0056] When the infrared absorbing fiber contains an infrared absorbing pigment, a PET homopolymer, and a copolymerized PET, the PET homopolymer functions as a base resin when forming the fiber by melt spinning. The copolymerized PET also has a function of dispersing the infrared absorbing pigment to a high degree in the resin. Therefore, the infrared absorbing fiber containing the infrared absorbing pigment, the PET homopolymer, and the copolymerized PET is preferable because it has excellent pigment dispersibility and melt spinnability.

[0057] Furthermore, when the infrared absorbing fiber contains an infrared absorbing pigment and nylon, the nylon serves as a base resin when the fiber is formed by melt spinning, and at the same time has the function of dispersing the infrared absorbing pigment to a high degree in the resin. Therefore, an infrared absorbing fiber containing an infrared absorbing pigment and nylon is preferable because it has excellent pigment dispersibility and melt spinnability.

[0058] (Outer fabric composition) The lined fabric or lined garment of the present invention comprises, as an outer material, an infrared absorbing fabric that includes the infrared absorbing textile product as described above.

[0059] The content of infrared absorbing pigment in the infrared absorbing material is 0.05 g / m per area of ​​the infrared absorbing material. 2 More than 0.50g / m 2 This value may be 0.05 g / m or less to achieve comfortable heat generation. 2 More than 0.06g / m 2 More than 0.08g / m 2 More than 0.10g / m 2 More than 0.12g / m2 More than 0.15g / m 2 or more than 0.20 g / m 2 On the other hand, from the viewpoint of limiting the visibility of the color of the infrared absorbing pigment and ensuring the freedom of design in the obtained clothing, the content of the infrared absorbing pigment in the infrared absorbing fabric is 0.50 g / m per area of ​​the infrared absorbing fabric. 2 Below, 0.48g / m 2 Below, 0.46g / m 2 Below, 0.44g / m 2 Below, 0.42g / m 2 or less than 0.40 g / m 2 It may be the following:

[0060] The outer layer is made of infrared absorbing fabric. It may be composed only of infrared absorbing textile products, The textile product may be composed of an infrared absorbing textile product and a textile product that does not contain an infrared absorbing pigment.

[0061] When an infrared absorbing fabric is composed of an infrared absorbing textile product and a textile product that does not contain an infrared absorbing pigment, the textile product that does not contain an infrared absorbing pigment may have a structure in which the infrared absorbing pigment is removed from the infrared absorbing textile product, or may be made of a different material. However, in order to ensure freedom of design when applied to clothing, the textile product that does not contain an infrared absorbing pigment may be one that has a structure in which the infrared absorbing pigment is removed from the infrared absorbing textile product.

[0062] The basis weight of the infrared absorbing fabric, which is the outer fabric, may be set arbitrarily depending on the type and purpose of the clothing to which it is applied. The basis weight of the infrared absorbing fabric is, for example, 50 g / m 2 More than 600g / m 2 It may be about the following.

[0063] <lining> The lined fabric or lined garment of the present invention has a lining made of fabric composed of fibers having an official moisture regain of 2.5% by mass or more.

[0064] Fabrics made of fibers with a standard moisture regain of 2.5% by mass or more have hygroscopic heat generation properties. Therefore, clothing containing fabrics with such standard moisture regain generates heat when the wearer sweats. It is believed that in the lined fabric or lined clothing of the present invention, the wearer can feel the temperature rise of the outer surface due to light irradiation as a warm sensation due to the synergistic effect of the infrared absorbing heat generation property of the outer fabric and the hygroscopic heat generation property of the lining.

[0065] The official moisture regain is the mass percentage of moisture in the fiber at a temperature of 20°C and a relative humidity of 65%, and is measured in accordance with JIS L0105:2020.

[0066] From the viewpoint of exhibiting good hygroscopic heat generation properties, the official moisture regain of the fiber constituting the lining is 2.5% by mass or more, and may be 3.0% by mass or more, 3.5% by mass or more, 5.0% by mass or more, or 8.0% by mass or more. Moreover, even if the official moisture regain is excessively large, the effect of the present invention is not infinitely increased, so the official moisture regain of the lining may be 20% by mass or less, 18% by mass or less, or 16% by mass or less.

[0067] The fibers constituting the lining may be natural fibers, synthetic fibers, or a blended yarn composed of both. Natural fibers generally have a high standard moisture regain and are suitable for the lining of the present invention. Examples of natural fibers include cotton, wool, hemp, silk, etc. Examples of synthetic fibers with a high standard moisture regain include rayon, cupra, nylon, vinylon, etc.

[0068] The fibers constituting the lining may be blended yarns composed of fiber materials with high and low moisture regains, so long as the overall standard moisture regain is within the above range. Examples of fibers with low moisture regain used here include polyester, acrylic, polyurethane, polyolefin, etc.

[0069] The fibers that make up the backing may have any cross-sectional shape, such as circular, polygonal, flat, hollow, Y-shaped, star-shaped, sheath-core, etc.

[0070] The fibers that make up the backing may be short or long fibers.

[0071] The lining in the present invention is, for example, It may be woven in plain weave, satin, twill, etc.; It may be a knit such as a chain stitch, a knit stitch, a rib stitch, a double stitch, a regular double stitch, a slip stitch, a tricot, etc.; The nonwoven fabric may be one produced by any suitable method, such as a dry method, a wet method, a spunbond method, a melt-blowing method, a thermal bond method, a chemical bond method, a needle punch method, a spunlace method, a stitch bond method, or a steam jet method.

[0072] The basis weight of the lining may be set arbitrarily depending on the type and purpose of the garment to which it is applied. For example, the basis weight of the lining is 30 g / m 2 More than 600g / m 2 It may be about the following.

[0073] << Fabric with lining >> The lined fabric of the present invention comprises the above-described infrared absorbing fabric as a surface fabric, and a fabric made of fibers having an official moisture regain of 2.5% by mass or more as a lining.

[0074] The lined fabric of the present invention may take any form as long as it has a predetermined outer fabric and lining. The lined fabric may, for example, be a part of a garment, or may exist as an independent fabric that does not constitute a garment, etc. In the latter case, the outer fabric and the lining may be fixed to each other at least in part, or may be a set of fabrics including the outer fabric and the lining.

[0075] {Clothing with lining} The lined garment of the present invention is a garment having, in at least a part of the garment, the infrared absorbing fabric described above as an outer fabric, and a lining made of fabric composed of fibers having an official moisture regain of 2.5% by mass or more.

[0076] The lined garment may be a top, a bottom, or a clothing accessory, such as yarn, gloves, arm covers, socks, scarves, stoles, mufflers, shawls, etc.

[0077] The lined garment may be entirely made of a specified outer fabric and lining, or may be partially made of a specified outer fabric and lining with the remaining portion being made of another fabric.

[0078] For example, in the case of a top having a front body, a back body, and sleeves, The front, back and sleeves may all be constructed from the specified outer and inner fabrics; The back body may be made of a specified outer fabric and lining, and the front body and sleeves may be made of another fabric; The front and back body may be made of a specified outer fabric and lining, and the sleeves may be made of another fabric; A part of the back body may be made of a given outer fabric and lining, and the other part of the back body, the front body, and the sleeves may be made of a different fabric.

[0079] The lined garment of the present invention may be manufactured by known methods using the given outer and inner fabrics (or the lined fabric of the present invention) and other fabrics as required. EXAMPLES

[0080] Example 1 (1) Manufacturing of infrared absorbing master batches 87.5 parts by mass of copolymerized polyethylene terephthalate (copolymerized PET) (containing 12 mol% of isophthalic acid with respect to the total moles of dicarboxylic acid components, intrinsic viscosity 0.62 dL / g, melting point 224°C), and cesium tungsten oxide (CWO (registered trademark): YMDS-874, manufactured by Sumitomo Metal Mining Co., Ltd., Cs 0.33 12.5 parts by mass (containing 23% by mass of WO3, 75% by mass of dispersant, and 2% by mass of other substances (residual solvents, etc.) 0.33 The mixture (corresponding to 2.88 parts by mass of WO3 and 9.34 parts by mass of dispersant) was mixed in a twin-screw extruder (manufactured by Kobe Steel, Ltd., model name "KTX46") and pelletized to obtain an infrared absorbing master batch (MB). 0.33 The WO3 content was 2.9% by mass.

[0081] (2) Manufacturing of infrared absorbing fibers 2.0 parts by mass of the MB obtained above and 96.0 parts by mass of RE530A (product name, manufactured by Toyobo Co., Ltd., homo PET containing no third monomer component, intrinsic viscosity 0.62-0.64 dL / g, melting point 255°C) as a polyethylene terephthalate homopolymer (homo PET) were dry blended, and then spun using a multifilament melt spinning device to obtain a 50 denier, 24 filament infrared absorbing fiber (CeWO-containing PET fiber). The spinning conditions were a temperature of 290°C and a take-up speed of 5,000 m / min.

[0082] (3) Manufacturing of infrared absorbing fabrics The infrared absorbing fiber obtained above was used as the weft yarn, and a polyester / wool blended yarn with a mass ratio of 50:50 was used as the warp yarn. The weft:warp usage ratio was 50:50 by mass, and the fabric was woven in a 3 / 1 twill pattern using a John Hell type loom to produce a fabric with a basis weight of 166.9 g / m 2 Thus, an infrared absorbing fabric of 1000 g was obtained.

[0083] (4) Preparation of cylindrical samples for evaluation The above fabric was cut into a 35 cm x 35 cm square, and then a lining of 265.2 g / m2 was applied to the warp side (the side where the polyester / wool blended yarn is mostly exposed) of the fabric.2 The cotton fabric was then sewn onto the infrared absorbing fabric. The fabric was then rolled into a tube with the weft side of the infrared absorbing fabric facing outward (front side) and the cotton fabric side facing inward (back side), and the ends were sewn together to prepare a cylindrical sample for evaluation.

[0084] (5) Evaluation of heat generation The cylindrical sample for evaluation obtained above was placed on the bare arm, and the arm was placed under a 250W reflector lamp so that the shortest distance from the reflector lamp to the surface of the sample was 30cm. In this state, the reflector lamp was turned on, and the temperature of the surface of the sample facing the body was tracked for 10 minutes after the lamp was turned on, and compared with the temperature change when the reflector lamp was not turned on. The results are shown in Table 1.

[0085] Examples 2 to 4 and Comparative Examples 1 to 4 Except for using the fabrics shown in Table 1 for the outer and inner linings, cylindrical evaluation samples were prepared in the same manner as in Example 1, and heat generation was evaluated. In Examples 2 to 4 and Comparative Example 4, the inner lining was made of a fabric made of blended yarn having the composition shown in Table 1. The results are shown in Table 1.

[0086] Example 5 Except for using polyester yarn as the warp yarn, an infrared absorbing fabric was produced in the same manner as in Example 1, and a cylindrical sample for evaluation was made using this fabric, and heat generation was evaluated. The results are shown in Table 1.

[0087] Example 6 (1) Preparation of infrared absorbing coating liquid Cesium tungsten oxide (Cs 0.33 A dispersion containing CsWO3 (hereinafter referred to as "CeWO") (Sumitomo Metal Mining Co., Ltd., "YMS-01A-2", Cs 0.33 Propylene glycol monomethyl ether acetate was added to a dispersion containing 25 mass % WO3 and propylene glycol monomethyl ether acetate as a solvent to prepare an infrared absorbing coating liquid with a cesium tungsten oxide concentration of 0.15 mass %.

[0088] (2) Manufacturing of infrared absorbing fabrics The infrared absorbing coating liquid obtained above was applied to one side of a 100% nylon white fabric using a Baker applicator at a coating speed of 5.2 m / min. The coating was then left to stand at 100°C for 1 minute to remove the solvent, resulting in a coating weight of 120.7 g / m 2 The amount of cesium tungsten oxide (CeWO) contained in this infrared absorbing fabric was 1% owf.

[0089] (3) Preparation of cylindrical samples for evaluation The above fabric was cut into a 35 cm x 35 cm square, and then a 265.2 g / m2 sheet was placed on the opposite side to the coated side as a lining. 2 The cotton fabric was then sewn onto the infrared absorbing fabric. The infrared absorbing fabric was then rolled into a cylinder with the coated side facing outward (front side) and the cotton fabric facing inward (back side), and the ends were sewn together to prepare a cylindrical sample for evaluation.

[0090] (5) Evaluation of heat generation Using the cylindrical evaluation sample obtained above, heat generation was evaluated in the same manner as in Example 1. The results are shown in Table 1.

[0091] Example 7 An infrared absorbing fabric was produced in the same manner as in Example 6, except that a 100% polyester white fabric was used instead of the 100% nylon white fabric, and a cylindrical sample for evaluation was made using this fabric, and heat generation was evaluated. The results are shown in Table 1.

[0092] [Table 1]

[0093] The percentages in Table 1 are expressed in "mass %."

[0094] The numerical value in the "Temperature Rise (°C)" column in Table 1 indicates how many degrees the temperature of the surface facing the body of the sample rose by after a specified time, compared to the temperature at the start of the evaluation. For example, in Example 1, when the lamp was not irradiated, the temperature rose by 1.1°C after 5 minutes and by 1.5°C after 10 minutes, compared to the temperature at the start of the evaluation. Similarly, in Example 1, when the lamp was irradiated, the temperature rose by 4.3°C after 5 minutes and by 6.4°C after 10 minutes, compared to the temperature at the start of the evaluation.

[0095] The temperature increased over time even when the lamp was not irradiated, which is thought to be due to the effect of body temperature.The temperature of the surface of the sample facing the body at the start of the evaluation was about 33°C in both the examples and the comparative examples.

[0096] The following can be understood from Table 1.

[0097] Comparative Example 2 and Comparative Example 3 have the same backing and the same material for the front, but differ in whether they contain infrared absorbing pigment (CeWO). Therefore, by comparing the numbers in the "with lamp irradiation" column for Comparative Example 2 and Comparative Example 3, the effect of the front containing infrared absorbing pigment (CeWO) can be seen. The effect of containing CeWO is calculated to be -0.2°C (=0.9°C-1.1°C) after 5 minutes, which is thought to indicate that the heat generated by lamp irradiation on the front containing CeWO was not effectively transmitted to the back of the sample. In addition, the effect of containing CeWO after 10 minutes was 1.6°C (=3.7°C-2.1°C).

[0098] In addition, Comparative Example 1 and Comparative Example 3 have in common that the outer material is the same and does not contain infrared absorbing pigment (CeWO), but the lining material is different, and therefore the official moisture regain (hygroscopic heat generation) of the lining is different. The official moisture regain of the lining is 8.5 in Comparative Example 1 and 0.4 in Comparative Example 3. Therefore, by comparing the numbers in the column without lamp irradiation for Comparative Example 1 and Comparative Example 3, the effect of the official moisture regain of the lining ignoring the effect of lamp irradiation can be seen. The effect of the official moisture regain of the lining was 0.0°C (=1.1°C-1.1°C) after 5 minutes and 0.6°C (=2.8°C-2.3°C) after 10 minutes.

[0099] In contrast, Example 1 and Comparative Example 3 have the same outer material, but differ in whether they contain infrared absorbing pigment (CeWO), and also in the lining material and official moisture regain of the lining. Therefore, by comparing the numbers in the "with lamp irradiation" column for Example 1 and Comparative Example 3, it is clear that the outer material contains infrared absorbing pigment (CeWO) and that the official moisture regain of the lining has a cumulative effect. This cumulative effect was 0.4°C (=1.5°C-1.1°C) after 5 minutes, and 4.3°C (=6.4°C-2.1°C) after 10 minutes.

[0100] Since the cumulative effect of the content of the infrared absorbing pigment and the official moisture regain calculated here is greater than the sum of the effects of each alone, it is understood that a synergistic effect is obtained by combining the two.

Claims

1. The infrared absorbing material includes an infrared absorbing knitted or woven fabric or nonwoven fabric containing an infrared absorbing pigment as a surface material, The lining is made of a fabric made of fibers with an official moisture regain of 2.5% by mass or more. Lined fabric or lined garment.

2. The content of the infrared absorbing pigment in the infrared absorbing material is 0.05 g / m per area of ​​the infrared absorbing material. ２ 0.50g / m or more ２ 2. The lined fabric or lined garment of claim 1, wherein:

3. The infrared absorbing pigment is General formula M ｘ W ｙ O ｚ (1) In the formula (1), M is one or more elements selected from the group consisting of H, He, an alkali metal element, an alkaline earth metal element, a rare earth element, Mg, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Sb, B, F, P, S, Se, Br, Te, Ti, Nb, V, Mo, Ta, Re, Be, Hf, Os, Bi, and I; W is tungsten; O is oxygen; x, y, and z are each a positive number, 0<x / y≦1, and 2.2≦z / y≦3.

0. A composite tungsten oxide represented by the formula: General formula W ｙ O ｚ (2) {In formula (2), W is tungsten, O is oxygen, y and z are each a positive number, and 2.45≦z / y≦2.999.} Tungsten oxide having a Magneli phase represented by 2. The lined fabric or lined garment of claim 1, comprising one or more selected from the group consisting of:

4. 4. The lined fabric or lined garment of claim 1, wherein the infrared absorbing woven or nonwoven fabric comprises fibers selected from polyethylene terephthalate and nylon.

5. The lined fabric or lined garment according to any one of claims 1 to 3, wherein the infrared absorbing woven or nonwoven fabric is composed of fibers containing the infrared absorbing pigment.

6. The lined fabric or lined garment according to any one of claims 1 to 3, wherein the infrared absorbing knitted or nonwoven fabric is composed of fibers containing the infrared absorbing pigment and fibers not containing the infrared absorbing pigment.

7. 7. The lined fabric or lined garment according to claim 6, wherein the fiber not containing the infrared absorbing pigment has a structure obtained by removing the infrared absorbing pigment from the fiber containing the infrared absorbing pigment.

8. The lined fabric or lined garment according to any one of claims 1 to 3, wherein the infrared absorbing fabric is composed of the infrared absorbing knitted or woven fabric or nonwoven fabric.

9. The lined fabric or lined garment according to any one of claims 1 to 3, wherein the infrared absorbing fabric is composed of the infrared absorbing woven or nonwoven fabric and a woven or nonwoven fabric that does not contain an infrared absorbing pigment.

10. 10. The lined fabric or lined garment according to claim 9, wherein the woven or nonwoven fabric not containing the infrared absorbing pigment has a configuration in which the infrared absorbing pigment has been removed from the infrared absorbing woven or nonwoven fabric.

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