High air permeability fabric and fiber product

Abstract

To provide a fabric which is not only excellent in air permeability but also excellent in stretchability, ultraviolet shielding property, and stickiness-preventing property, and a fiber product using the fabric. A high-air-permeability fabric having an air permeability of 30 cc / sec / cm2 or more, containing a stretchable fiber, having a cover factor CF in the range of 1000 to 4000, and having a yarn-void portion in only any one of the warp and weft.

Description

Technical Field

[0001] This invention relates to fabrics that not only have excellent breathability, but also excellent stretchability, UV protection and non-stickiness, as well as fiber articles using the fabric. Background Technology

[0002] In recent years, fabrics with excellent breathability have been proposed to improve comfort (see, for example, Patent Documents 1-3). However, while these fabrics have excellent breathability due to the absence of yarn portions in both the warp and weft yarns, their UV protection is unsatisfactory.

[0003] On the other hand, in fields such as sportswear, stretchability and non-stickiness are also important properties, thus requiring fabrics with excellent stretchability and non-stickiness.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2015-108214

[0007] Patent Document 2: Japanese Patent Application Publication No. 2020-15995

[0008] Patent Document 3: Japanese Patent Application Publication No. 2021-116508 Summary of the Invention

[0009] The present invention was made in view of the above background, and its object is to provide a fabric and fiber articles using the fabric that not only have excellent breathability, but also excellent stretchability, UV protection and non-stickiness.

[0010] The inventors conducted repeated and in-depth research to solve the aforementioned problems, and thus completed the present invention. Therefore, according to the present invention, the following invention is provided.

[0011] 1. A highly breathable fabric having an air permeability of 30cc / sec / cm² or higher, characterized in that it comprises stretchable fibers, the fabric's coverage factor (CF) is in the range of 1000 to 4000, and it has a non-yarn portion only in either the warp or the weft yarn.

[0012] The coverage factor CF is defined by the following formula:

[0013] CF=(DWp / 1.1) 1 / 2 ×MWp+(DWf / 1.1) 1 / 2 ×MWf

[0014] [DWp is the total warp fineness (dtex), MWp is the warp yarn density (ends / 2.54cm), DWf is the total weft fineness (dtex), and MWf is the weft yarn density (ends / 2.54cm).]

[0015] 2. The high-breathability fabric according to 1 above, wherein the stretchable fiber is a polyurethane fiber, a composite fiber formed by two components joined in a side-by-side or eccentric core-sheath manner, or a polypropylene terephthalate fiber.

[0016] 3. The high-breathability fabric according to 1 or 2 above, wherein the yarn is not formed by the dissolution of the yarn or by voids formed during weaving.

[0017] 4. The high-breathability fabric according to any one of 1 to 3 above, wherein the elongation in the warp or weft direction is 10% or more.

[0018] 5. The high-breathability fabric according to any one of 1 to 4 above, wherein the ultraviolet shading rate is 85% or more.

[0019] The above ultraviolet shielding rates were determined according to JIS L1925.

[0020] 6. The high-breathability fabric according to any one of 1 to 5 above, wherein the ultraviolet protection factor is 30 or higher.

[0021] The above ultraviolet protection factor was determined according to AS / NZS 4399:1996.

[0022] 7. The high-breathability fabric according to any one of 1 to 6 above, wherein, in at least one of the warp and weft yarns, the stretchable fiber is alternately arranged with fibers other than the stretchable fiber.

[0023] 8. The high-breathability fabric according to any one of 1 to 7 above, wherein the wet friction is less than 100g.

[0024] 9. The high-breathability fabric according to any one of 1 to 8 above, wherein the tear strength is 8N or higher.

[0025] The above tear strength was determined according to JIS L1096-2010 8.17 D method.

[0026] 10. The high-breathability fabric according to any one of 1 to 9 above, wherein the anti-slip property is 3 mm or less.

[0027] The above anti-slip properties were determined according to JIS L1096-2010 8.23 ​​B method (load 117.7N).

[0028] 11. A fiber product made of any one of the high-breathability fabrics described in any one of 1 to 10 above, selected from sportswear, outdoor clothing, menswear, womenswear, workwear, protective clothing, footwear, and bags.

[0029] According to the present invention, a fabric with excellent breathability, as well as excellent stretchability, UV protection and non-stickiness, and fiber products using the fabric can be obtained. Detailed Implementation

[0030] In the fabric of this invention, an air permeability of 30 cc / sec / cm² or higher is important (preferably 50 to 300 cc / sec / cm²). If the air permeability is less than 30 cc / sec / cm², comfort may be reduced, and this is not preferred. This air permeability is measured according to JIS L1096-2010 8.26.1 A method (Fraser method).

[0031] The fabric of the present invention comprises stretchable fibers. By including stretchable fibers in the fabric, not only is the fabric given stretchability, but the anti-slip properties of the seams are also improved. Furthermore, if stretchable fibers and polyethylene terephthalate fibers (non-crimped yarn or false-twist crimped yarn), which are fibers other than stretchable fibers (hereinafter also referred to as "non-stretchable fibers"), are used alternately in at least one of the warp and weft yarns (preferably 1 to 12 yarns: 1 to 12 yarns alternate, particularly preferably 4 to 10 yarns: 4 to 10 yarns alternate), the difference in stretch between the two creates an uneven surface on the fabric, improving the anti-sticking properties, which is therefore preferred.

[0032] At this time, the preferred elastic fibers are fibers composed of one component of polypropylene terephthalate, composite fibers (conjugated filament yarns) formed by joining two components in a side-by-side or eccentric core-sheath manner, elastic fibers (polyurethane fibers, polyether ester fibers, water-absorbing elastomer fibers, etc.), unstretched polyester fibers, etc.

[0033] Here, as the aforementioned composite fiber, it is preferable to be a composite fiber composed of at least one component being poly(propylene terephthalate), polybutylene terephthalate, or polyethylene terephthalate. Examples of specific two components include poly(propylene terephthalate) and poly(propylene terephthalate), poly(propylene terephthalate) and poly(ethylene terephthalate), poly(ethylene terephthalate) and poly(ethylene terephthalate), and poly(ethylene terephthalate) and polybutylene terephthalate.

[0034] Here, poly(propylene terephthalate) refers to fibers formed from polyesters whose main repeating unit is propylene terephthalate unit, and the propylene terephthalate unit content is 50 mol% or more, preferably 70 mol% or more, more preferably 80 mol% or more, and particularly preferably 90 mol% or more. Therefore, poly(propylene terephthalate) is included in the range where the total of other acid components and / or glycol components as a third component is 50 mol% or less, preferably 30 mol% or less, more preferably 20 mol% or less, and particularly preferably 10 mol% or less.

[0035] Poly(propylene terephthalate) is manufactured by condensing terephthalic acid or its functional derivatives with propylene glycol or its functional derivatives in the presence of a catalyst and under appropriate reaction conditions.

[0036] Examples of added third components include aliphatic dicarboxylic acids (oxalic acid, adipic acid, etc.), alicyclic dicarboxylic acids (cyclohexanedicarboxylic acid, etc.), aromatic dicarboxylic acids (isophthalic acid, sodium terephthalic acid sulfonate, etc.), aliphatic diols (ethylene glycol, 1,2-propanediol, butanediol, etc.), alicyclic diols (cyclohexanediol, etc.), aromatic dioxygen compounds (hydroquinone, bisphenol A, etc.), aromatic aliphatic diols (1,4-bis(β-hydroxyethoxy)benzene, etc.), and aliphatic hydroxycarboxylic acids (p-hydroxybenzoic acid, etc.). The aforementioned polyethylene terephthalate can also be obtained by copolymerizing the three components. Furthermore, it can also be obtained through material recycling or chemical recycling. Additionally, as described in Japanese Patent Application Publication Nos. 2004-270097 and 2004-211268, it can be obtained using a catalyst containing specific phosphorus compounds and titanium compounds.

[0037] The aforementioned poly(propylene terephthalate), polyethylene terephthalate, and polybutylene terephthalate may also contain one or more micropore forming agents, cationic dyeing agents, anti-coloring agents, heat stabilizers, fluorescent whitening agents, matting agents, coloring agents, hygroscopic agents, and inorganic microparticles.

[0038] The aforementioned composite fiber can be manufactured, for example, by the method described in Japanese Patent Application Publication No. 2009-46800.

[0039] There are no particular restrictions on the type of fiber (non-stretchable fiber) other than the stretchable fibers constituting the fabric, but polyester non-crimped yarn or polyester false-twist crimped yarn made of polyester is preferred. Examples of such polyester include polyester with terephthalic acid as the main acid component and at least one diol selected from alkylene glycols having 2 to 6 carbon atoms, namely ethylene glycol, butanediol, pentanediol, and hexanediol, with polyester having ethylene glycol as the main diol component being particularly preferred.

[0040] The polyester may also contain a small amount (usually less than 30 mol%) of copolymer components, as needed. In this case, examples of difunctional carboxylic acids other than terephthalic acid include isophthalic acid, naphthalenedicarboxylic acid, diphenyl dicarboxylic acid, diphenoxyethane dicarboxylic acid, β-hydroxyethoxybenzoic acid, p-hydroxybenzoic acid, sodium isophthalic acid 5-sulfonate, adipic acid, sebacic acid, and 1,4-cyclohexanedicarboxylic acid, which are aromatic, aliphatic, or alicyclic difunctional carboxylic acids. Furthermore, examples of diol compounds other than the aforementioned diols include cyclohexane-1,4-diethanol, neopentyl glycol, bisphenol A, bisphenol S, and other aliphatic, alicyclic, or aromatic diol compounds, as well as polyoxyalkylene glycols.

[0041] The aforementioned polyesters can be synthesized by any method. For example, regarding polyethylene terephthalate, it can be manufactured by the following methods: a first-stage reaction involving direct esterification of terephthalic acid with ethylene glycol, or transesterification of a lower alkyl ester of terephthalic acid, such as dimethyl terephthalate, with ethylene glycol, or reaction of terephthalic acid with ethylene oxide to generate polyethylene terephthalate and / or its oligomers; and a second-stage reaction involving heating the products of the first-stage reaction under reduced pressure to induce polycondensation until the desired degree of polymerization is reached. Furthermore, it can also be a polyester obtained through material recycling or chemical recovery. Additionally, it can be an aliphatic polyester such as polylactic acid or stereopolymer polylactic acid.

[0042] The aforementioned polyester may contain, as needed, one or more of the following: matting agent (titanium dioxide), micropore-forming agent (organosulfonate metal salt), anti-coloring agent, heat stabilizer, flame retardant (antimony trioxide), fluorescent whitening agent, coloring pigment, antistatic agent (sulfonate metal salt), hygroscopic agent (polyoxyalkylene glycol), antibacterial agent, and other inorganic particles. In particular, when the aforementioned polyester contains 0.2% by weight or more (more preferably 0.2 to 2.5% by weight) of matting agent relative to the weight of the polyester, it imparts ultraviolet shielding and anti-see-through properties to the fabric, and is therefore preferred.

[0043] In the fabric of the present invention, the aforementioned stretchable fibers can be included as individual yarns in the fabric, or as composite yarns (air-blended yarns, composite false-twist yarns, twisted yarns, etc.) with other yarns (e.g., non-crimped yarns). Furthermore, two or more types of yarns can be configured in the warp and / or weft yarns, with one type being a stretchable fiber and the other yarns being polyethylene terephthalate fibers (non-crimped yarns or false-twist crimped yarns) or fibers dissolved in water or solvents as described later.

[0044] At this point, regarding the fibers constituting the fabric, such as the aforementioned stretchable or non-stretchable fibers, in order to obtain excellent breathability, stretchability, UV protection, and non-stickiness, multifilaments with a total fineness of 20 to 220 dtex (more preferably 20 to 167 dtex), a filament count of 1 to 300 (more preferably 12 to 300), and a single fiber fineness of 0.00002 to 3.0 dtex (more preferably 0.1 to 2.0 dtex, particularly preferably 0.3 to 1.0 dtex) are preferred.

[0045] In addition, among the fibers that make up the fabric, as a single fiber cross-sectional shape, besides a circular cross-section, examples include elliptical cross-sections, triangles, quadrilaterals, crosses, flat shapes, flat shapes with a waist, H-shapes, W-shapes, etc.

[0046] In the fabric of this invention, both breathability and UV protection are achieved by having a yarn-free portion only in either the warp or weft yarns. Furthermore, the yarn-free portion is a strip-like gap caused by missing yarns. While breathability is improved when both the warp and weft yarns have yarn-free portions, UV protection may decrease, which is not preferred. Moreover, breathability may decrease when neither the warp nor weft yarns have yarn-free portions, which is also not preferred.

[0047] Here, as a method for forming the non-existent part of the yarn, it is preferable to form it by dissolving the yarn or by creating a void in the reed during weaving.

[0048] As for dissolving the yarn, it is preferable to use fibers that can be dissolved in water or solvents, such as those described in Japanese Patent Application Publication Nos. 2015-151630 and 2021-116508 (e.g., polyvinyl alcohol fibers, polyester fibers copolymerized with sodium isophthalic acid 5-sulfonate or methoxy polyethylene glycol as a third component, polylactic acid fibers, and commercially available "Bellpure" (trade name) manufactured by KBSeiren Co., Ltd., with a total fineness of about 20 to 220 dtex). These fibers are intermittently applied to one of the warp and weft yarns of the fabric during weaving, and then dissolved and removed using water or a solvent. At this time, the warp (weft) yarns are not present in the warp (weft) yarns. Preferably, the ratio of non-dissolved fiber to dissolved fiber is 3 to 30: 1 to 8, and particularly preferably, the ratio of non-dissolved fiber to dissolved fiber is 3 to 16: 1 to 6.

[0049] On the other hand, regarding the empty reed during weaving (forming fabric), as described in Japanese Patent Application Publication No. 2021-116508, during the warp preparation process, it is preferable to not insert the reed at regular intervals or to reduce the number of warp yarns. In this case, the ratio of present portion to non-present portion in the warp (weft) is preferably 3 to 30 yarns: 1 to 4 yarns, and particularly preferably 3 to 16 yarns: 1 to 2 yarns. Since most warp yarns pass through two yarns between one reed tooth, for example, if the empty reed is defined as a ratio of 4 reed teeth to 1 reed tooth, then the ratio of present portion to non-present portion in the warp is 8 yarns: 2 yarns. Furthermore, in the case of the weft, when weaving using a water-jet loom or similar machine, it is preferable to insert the weft at regular intervals.

[0050] The fabric of the present invention can be woven using the aforementioned yarn on a conventional loom. The fabric structure is not limited, but plain weave, twill weave, etc., are preferred examples.

[0051] At this time, when a part of the yarn is not formed by dissolving the yarn, it is preferable to use fibers that are elastic and insoluble in alkali (or water), fibers that are non-elastic and insoluble in alkali (or water), and fibers that are non-elastic and soluble in alkali (or water). The non-soluble fibers and the dissolved fibers are arranged in the above proportion only in one of the warp and weft yarns, and the elastic fibers and the non-elastic fibers are arranged alternately in the above proportion in at least one of the warp and weft yarns.

[0052] In addition, when the yarn is not present in the weaving process by forming a non-existent part through an open reed or an air-dropped weft, it is preferable to use fibers that are elastic and insoluble in alkali (or water) and fibers that are non-extensible and insoluble in alkali (or water) alternately in the above proportions in at least one of the warp and weft yarns, and to weave through an open reed or an air-dropped weft.

[0053] Secondly, when using fibers that are soluble in alkali (or water), the fibers are dissolved. For example, when the dissolving fiber is a water-soluble fiber such as polyvinyl alcohol-based fibers, it is preferable to immerse the fabric in water. The water temperature is preferably 20°C or higher, and more preferably dissolved and removed in a bath at 50°C to 100°C. When the dissolving fiber is a fiber easily dissolved by alkali, it is preferable to immerse the fabric in a bath containing an alkaline aqueous solution of sodium hydroxide. The bath temperature is preferably 90 to 100°C, and the time is preferably 10 to 30 minutes. The sodium hydroxide concentration is preferably 0.5 to 3% ows, and the bath ratio is preferably 1:30 to 1:50.

[0054] Furthermore, appropriate post-processing can also be carried out, such as dyeing, napping, calendering, embossing, heat storage, water absorption (sweat absorption), water repellency, antistatic processing, and antibacterial processing.

[0055] As a water-absorbing process, it is preferable to apply 0.25 to 0.50% by weight of the fabric by co-bathing with hydrophilic agents such as PEG diacrylate and its derivatives or polyethylene terephthalate-polyethylene glycol copolymer during dyeing.

[0056] Furthermore, there are no particular restrictions on the type of water-repellent agent used in water-repellent processing. Examples include fluorinated compounds, hydrocarbon compounds, and siloxane compounds. Preferably, an antistatic agent, melamine resin, and catalyst are mixed as needed to prepare a processing agent with a water-repellent concentration of approximately 3-15% by weight, and the fabric surface is treated with this processing agent to achieve a liquid absorption rate of approximately 50-90%. Examples of methods for treating the fabric surface with the processing agent include padding and spraying. Among these, padding is preferred for allowing the processing agent to penetrate into the fabric. The aforementioned liquid absorption rate is the weight ratio (%) of the processing agent relative to the weight of the fabric (before the processing agent is applied).

[0057] In addition, preferred antistatic agents include polyester resins containing polyethylene glycol groups, polyurethane resins containing polyethylene glycol groups, and reaction products of polyethylene glycol-containing cationic compounds and diglycidyl ethers. Alternatively, antistatic compounds may be anionic surfactants such as higher alcohol sulfates, sulfated oils, sulfonates, and phosphates; cationic surfactants such as amine salts, quaternary ammonium salts, and imidazoline quaternary salts; nonionic surfactants such as polyethylene glycol and polyol esters; and amphoteric surfactants such as imidazoline quaternary salts, alanine, and betaine-type surfactants.

[0058] In order to obtain excellent breathability, stretchability, UV protection, and non-stickiness in the fabric obtained in this way, it is important that the fabric's coverage factor (CF) is in the range of 1000 to 4000. The coverage factor (CF) is defined by the following formula.

[0059] CF=(DWp / 1.1) 1 / 2 ×MWp+(DWf / 1.1) 1 / 2 ×MWf

[0060] [DWp is the total warp fineness (dtex), MWp is the warp yarn density (ends / 2.54cm), DWf is the total weft fineness (dtex), and MWf is the weft yarn density (ends / 2.54cm).]

[0061] Furthermore, the unit area mass of the fabric is preferably 300 g / m² or less (more preferably 50 to 300 g / m²). When the unit area mass is greater than 300 g / m², the weight of the fabric increases, which may impair the wearing comfort of the fabric.

[0062] The resulting fabric achieves high breathability due to the absence of yarn-like portions, similar to a curtain. Simultaneously, it possesses stretchability due to the elastic fibers. Furthermore, the difference in shrinkage between the elastic and non-elastic fibers creates an uneven surface, resulting in excellent non-stickiness. Additionally, since the absence of yarn-like portions occurs only in one of the warp and weft yarns, it is easy to combine opposing properties such as breathability and UV protection.

[0063] Here, the elongation in the warp or weft direction is preferably 10% or more (more preferably 15-40%). Furthermore, the UV shielding rate is preferably 85% or more. The UV shielding rate is measured according to JIS L1925. Additionally, the UV protection factor is preferably 30 or more (more preferably 30-80). The UV protection factor is measured according to AS / NZS 4399:1996. Furthermore, the wet friction force is preferably 100g or less (more preferably 50-100g). Furthermore, the tear strength is preferably 8N or more (more preferably 8-20N). The tear strength is measured according to JIS L1096-2010 8.17 D method. Furthermore, the anti-slip property is preferably 3mm or less (more preferably 0.1-2mm). The anti-slip property is measured according to JIS L1096-2010 8.23 ​​B method (load 117.7N).

[0064] The above-mentioned fabrics are preferably used as textiles for sportswear, outdoor clothing, menswear, womenswear, work clothes, protective clothing, footwear, bags, and other fiber products.

[0065] Example

[0066] The embodiments and comparative examples of the present invention are described in detail below, but the present invention is not limited thereto. Furthermore, the various measurement items in the embodiments were measured using the following methods.

[0067] (1) Coverage factor

[0068] The fabric coverage factor CF is calculated using the following formula.

[0069] CF=(DWp / 1.1) 1 / 2 ×MWp+(DWf / 1.1) 1 / 2 ×MWf

[0070] Wherein, DWp is the total fineness of warp yarns (dtex), MWp is the warp yarn density (threads / 2.54cm), DWf is the total fineness of weft yarns (dtex), and MWf is the weft yarn density (threads / 2.54cm).

[0071] (2) Mass per unit area of ​​the fabric

[0072] The unit area mass (g / m²) of the fabric was determined according to JIS L1096-2010 8.3.

[0073] (3) Breathability

[0074] The air permeability (cc / sec / cm²) was determined according to JIS L1096-2010 8.26.1 A method (Fraser type air permeability tester method). Additionally, the sample size was 5; calculate the average value.

[0075] (4) Elongation of the fabric

[0076] The elongation (%) of the fabric was determined according to JIS L1096-2010 8.16 B method.

[0077] (5) Ultraviolet shielding rate

[0078] The ultraviolet shielding rate (%) was determined according to JIS L1925.

[0079] (6) UV protection factor

[0080] The UV protection factor was determined according to AS / NZS 4399:1996.

[0081] (7) Wet friction

[0082] The wet friction force (g) on ​​the back of the fabric was measured using the following method.

[0083] As shown in Figure 1 of Japanese Patent Application Publication No. 9-195172, a piece of fabric (sample) measuring 15 cm in length and 6 cm in width is placed on a metal roller with a diameter of 8 cm and a polished surface. One end is attached to a stress-strain gauge (U-gauge), and a 10g clamp is attached to the lower end to tighten the fabric. Then, while rotating the metal roller at a surface speed of 7 cm / sec in the opposite direction to the U-gauge, 1 cc of water is accurately and steadily injected between the metal roller and the fabric using a syringe. The tension applied to the fabric is then measured using the U-gauge and recorded using a recorder; its maximum value is defined as the wet friction force.

[0084] (8) Tear strength

[0085] Tear strength (N) was determined according to JIS L1096-2010 8.17 D method.

[0086] (9) Anti-slip properties

[0087] The slip resistance (mm) was determined according to JIS L1096-2010 8.23 ​​B method (load 117.7N).

[0088] [Example 1]

[0089] As warp yarns, semi-dull polyethylene terephthalate multifilament false twist crimped yarn (total fineness 84 dtex / 72 ends, non-stretchable fiber) and alkali-soluble polyester fiber (total fineness 110 dtex / 72 ends, non-stretchable fiber) are alternately arranged in a ratio of 5 ends: 1 end. As weft yarns, semi-dull polyethylene terephthalate multifilament false twist crimped yarn (total fineness 167 dtex / 72 ends, non-stretchable fiber) and conjugated filament yarns of polyethylene terephthalate and polypropylene terephthalate (total fineness 167 dtex / 72 ends, stretchable fiber) are alternately arranged in a ratio of 1 end: 1 end, weaving a plain weave fabric with a warp density of 99 ends / 2.54 cm and a weft density of 63 ends / 2.54 cm. Next, the alkali-soluble polyester fibers are dissolved in the scouring process, and the fabric is then subjected to the usual dyeing and finishing processes and water absorption processes before final setting.

[0090] The resulting fabric has no yarn present only in the warp section, with a unit area mass of 125 g / m², a warp density of 133 ends / 2.54 cm, a weft density of 70 ends / 2.54 cm, a cover factor of 2009, an air permeability of 60 cc / sec / cm², a weft elongation of 23%, an UV shielding rate of 94%, a UV protection factor of 30, a wet friction force of 75 g, a tear strength of 11 N, and a slip resistance of 1.0 mm. This fabric exhibits excellent air permeability, tensile strength, and UV shielding.

[0091] [Example 2]

[0092] As warp yarns, semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness 84 dtex / 72 ends, non-stretch fiber), conjugated filament yarn of polyethylene terephthalate and polypropylene terephthalate (total fineness 84 dtex / 36 ends, stretch fiber), and alkali-soluble polyester fiber (total fineness 110 dtex / 72 ends) are arranged alternately in a ratio of 6 ends: 6 ends: 4 ends. The weft yarn consists of fully dull polyethylene terephthalate multifilament false twist crimped yarn (total fineness 84 dtex / 72 ends, non-stretch fiber) and conjugated filament yarn of polyethylene terephthalate and polypropylene terephthalate (total fineness 84 dtex / 36 ends, stretch fiber) arranged alternately in a 1:1 ratio to weave a plain weave fabric with a warp density of 87 ends / 2.54 cm and a weft density of 89 ends / 2.54 cm.

[0093] Next, the alkali-soluble polyester fibers are dissolved in the scouring process, and the fabric is then subjected to the usual dyeing and finishing processes and water absorption processes before final setting.

[0094] The resulting fabric has no yarn present only in the warp section, with a unit area mass of 123 g / m², a warp density of 131 ends / 2.54 cm, a weft density of 111 ends / 2.54 cm, a cover factor of 2095, an air permeability of 55 cc / sec / cm², a weft elongation of 25%, an UV shielding rate of 97%, a UV protection factor of 50+, a wet friction force of 60 g, a tear strength of 11 N, and a slip resistance of 1.1 mm. Furthermore, due to the difference in shrinkage between the stretchable fibers and other fibers, an uneven surface is formed on the fabric. This fabric not only possesses excellent air permeability and stretchability but also excellent UV shielding and non-stickiness.

[0095] [Example 3]

[0096] As warp yarns, semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness 84 dtex / 72 ends, non-stretch fiber) is used. Two warp yarns are passed through each tooth of the reed, with a ratio of 4 reed teeth to 1 reed tooth to create an empty reed. As weft yarns, semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness 167 dtex / 72 ends, non-stretch fiber) and conjugated filament yarn of polyethylene terephthalate and polypropylene terephthalate (total fineness 167 dtex / 72 ends, stretch fiber) are alternately arranged in a 1:1 ratio to weave a plain weave fabric with a warp density of 105 ends / 2.54 cm and a weft density of 65 ends / 2.54 cm. The fabric is then subjected to standard dyeing and finishing processes, followed by water absorption, and finally final setting.

[0097] The resulting fabric has a unit area mass of 130 g / m², a warp density of 135 threads / 2.54 cm, a weft density of 72 threads / 2.54 cm, a cover factor of 2051, an air permeability of 55 cc / sec / cm², a weft elongation of 20%, an UV shielding rate of 93%, a UV protection factor of 30, a wet friction strength of 70 g, a tear strength of 12 N, and a slip resistance of 1.2 mm. This fabric exhibits excellent air permeability, tensile strength, and UV shielding properties.

[0098] [Comparative Example 1]

[0099] As the warp, semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness 84 dtex / 72 ends, non-stretch fiber) is used. As the weft, semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness 167 dtex / 72 ends, non-stretch fiber) and conjugated filament yarn of polyethylene terephthalate and polypropylene terephthalate (total fineness 167 dtex / 72 ends, stretch fiber) are alternately arranged in a 1:1 ratio to weave a plain weave fabric with a warp density of 99 ends / 2.54 cm and a weft density of 63 ends / 2.54 cm. Next, the fabric undergoes conventional dyeing and finishing processes, followed by water absorption, and then final setting.

[0100] The resulting fabric has no yarn-free sections in either the warp or weft, a unit area mass of 130 g / m², a warp density of 140 threads / 2.54 cm, a weft density of 72 threads / 2.54 cm, a coverage factor of 2094, an air permeability of 20 cc / sec / cm², a weft elongation of 23%, an ultraviolet shielding rate of 95%, an ultraviolet protection factor of 30, a wet friction of 80 g, a tear strength of 11 N, and a slip resistance of 1.0 mm. It is a fabric with poor air permeability.

[0101] [Comparative Example 2]

[0102] As the warp yarn, semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness 84 dtex / 72 ends, non-stretch fiber) is used; as the weft yarn, conjugated filament yarn of polyethylene terephthalate and polypropylene terephthalate (total fineness 167 dtex / 72 ends, stretch fiber) is used, weaving a plain weave fabric with a warp density of 99 ends / 2.54 cm and a weft density of 63 ends / 2.54 cm. Next, the fabric undergoes conventional dyeing and finishing processes, followed by water absorption, and then final setting.

[0103] The resulting fabric has no yarn-free sections in either the warp or weft, a unit area mass of 130 g / m², a warp density of 140 threads / 2.54 cm, a weft density of 72 threads / 2.54 cm, a coverage factor of 2094, an air permeability of 20 cc / sec / cm², a weft elongation of 23%, an ultraviolet shielding rate of 95%, an ultraviolet protection factor of 30, a wet friction of 120 g, a tear strength of 11 N, and a slip resistance of 1.0 mm. It is a fabric with poor air permeability and non-stickiness.

[0104] [Comparative Example 3]

[0105] In Example 1, as the warp yarn, semi-dull polyethylene terephthalate multifilament false twist crimped yarn (total fineness 84 dtex / 72 ends, non-stretchable fiber) and alkali-soluble polyester fiber (total fineness 110 dtex / 72 ends, non-stretchable fiber) were alternately arranged in a ratio of 5 ends to 1 end. As the weft yarn, alkali-soluble polyester fiber (total fineness 110 dtex / 72 ends, non-stretchable fiber) and conjugated filament yarn of polyethylene terephthalate and polypropylene terephthalate (total fineness 167 dtex / 72 ends, stretchable fiber) were alternately arranged in a ratio of 1 end to 5 ends. Otherwise, it was the same as in Example 1.

[0106] In the fabric obtained in this way, both the warp and weft yarns have non-existent yarn portions. Compared with the fabric obtained in Example 1, it has good air permeability but poor UV protection.

[0107] Industrial availability

[0108] According to the present invention, a fabric with excellent breathability, as well as excellent stretchability, UV protection and non-stickiness, and fiber products using the fabric can be provided, which have great industrial value.

Claims

1. A highly breathable fabric having an air permeability of 30cc / sec / cm² or higher, comprising stretch fibers, a fabric coverage factor (CF) in the range of 1000 to 4000, and having a non-woven portion only in either the warp or weft yarns. in, The coverage factor CF is defined by the following formula: CF=(DWp / 1.1) 1 / 2 ×MWp+(DWf / 1.1) 1 / 2 ×MWf DWp is the total fineness of the warp yarn (dtex), MWp is the warp yarn density (threads / 2.54cm), DWf is the total fineness of the weft yarn (dtex), and MWf is the weft yarn density (threads / 2.54cm).

2. The high air permeability fabric according to claim 1, wherein, The elastic fiber is a polyurethane fiber, a composite fiber formed by joining two components in a side-by-side or eccentric core-sheath configuration, or a polypropylene terephthalate fiber.

3. The high-breathability fabric according to claim 1, wherein, The absence of yarn is formed by the dissolution of the yarn or by voids formed during weaving.

4. The high air permeability fabric according to claim 1, wherein, The elongation rate in the warp or weft direction is 10% or more.

5. The high air permeability fabric according to claim 1, wherein, The ultraviolet radiation blocking rate is over 85%. The ultraviolet shielding rate was determined according to JIS L1925.

6. The high-breathability fabric according to claim 1, wherein, UV protection factor of 30 or higher The UV protection factor was determined according to AS / NZS 4399:1996.

7. The high air permeability fabric according to claim 1, wherein, In at least one of the warp and weft yarns, the stretchable fiber is alternately arranged with fibers other than the stretchable fiber.

8. The high-breathability fabric according to claim 1, wherein, The wet friction force is less than 100g.

9. The high-breathability fabric according to claim 1, wherein, Tear strength of 8N or higher The tear strength was determined according to JIS L1096-2010 8.17 D method.

10. The high-breathability fabric according to claim 1, wherein, Anti-slip performance is below 3mm. The slip resistance was determined according to JIS L1096-2010 8.23 ​​B method (load 117.7N).

11. A fiber article made of a highly breathable fabric according to any one of claims 1 to 10, and selected from sportswear, outdoor clothing, menswear, womenswear, workwear, protective clothing, footwear, and bags.