JP6967419B2 - Threads and fabrics and textiles - Google Patents

Description

The present invention is a thread containing an ultrafine filament, which is excellent in handleability and elasticity, and which can obtain a high-quality fabric or textile product, and a fabric made by using the thread. And the textile products made of the above-mentioned threads or fabrics.

Conventionally, in order to obtain excellent anti-slip performance, wiping performance, and soft texture, a fabric using an ultrafine filament has been proposed (for example, Patent Document 1).

However, in such a woven fabric, after obtaining the woven fabric using the sea-island type composite fiber, the sea component of the sea-island type composite fiber is dissolved and removed with an alkali, which causes equipment restrictions and complicates the process. was there. Further, there is a problem that it is difficult to knit or knit with other fibers having a weakness in alkali resistance such as wool.

Further, Patent Document 2 proposes an ultrafine filament, but when a fabric or a textile product is manufactured using such an ultrafine filament, the filament surface is scraped by the manufacturing equipment and yarn breakage or the like occurs. There is a problem that the stability is inferior and it is not possible to obtain high-quality fabrics and textile products.

Further, Patent Document 3 proposes a yarn having excellent handleability and capable of obtaining a high-quality fabric or textile product by applying a sizing agent to the yarn containing an ultrafine filament. However, there is a problem in knitting property with such yarns, and there is still room for improvement in stably producing fabrics and textile products.

On the other hand, as socks, various socks such as socks having improved water absorption by using ultrafine fibers and socks having a plate-like material on the sole of the foot have been proposed (for example, Patent Document 4 and Patent Document 5). ).

However, socks that are not provided with a plate-like material and that prevent slipping between the sock and the sock by the effect of the constituent fibers of the sock and improve the wearing comfort have not been proposed so far.

International Publication No. 05/095686 Pamphlet Japanese Unexamined Patent Publication No. 2012-193476 Japanese Unexamined Patent Publication No. 2014-210986 Jikkensho 58-7721 Gazette Japanese Unexamined Patent Publication No. 2006-249623

The present invention has been made in view of the above background, and an object thereof is a yarn containing an ultrafine filament, which is excellent in handleability and elasticity, and can obtain a high-quality fabric or textile product. It is an object of the present invention to provide a thread, a cloth made by using the thread, and a textile product made of the thread or the cloth.

As a result of diligent studies to achieve the above problems, the present inventors have excellent handleability and elasticity by applying a sizing agent to a yarn containing an ultrafine filament and a fiber having a fiber diameter larger than that of the filament. Moreover, it has been found that a thread capable of obtaining a high-quality fabric or textile product can be obtained, and further diligent studies have led to the completion of the present invention.

Thus, according to the present invention, the yarn is a thread containing a filament A-1 having a single fiber diameter of 10 to 3000 nm and a fiber A-2 having a larger single fiber diameter than the filament A-1. The yarn is provided with a sizing agent and a wax , the wax is a glycol-based wax, and the amount of the wax adhered is 0.1 to 10% by weight in terms of solid content with respect to the weight of the yarn. . "Is provided.

At that time, it is preferable that the sizing agent contains a glue and / or an oil. Further, it is preferable that the amount of the sizing agent adhered is 0.1 to 15% by weight with respect to the weight of the yarn. Further, it is preferable that the number of filaments of the filament A-1 contained in the yarn is 500 or more. Further, it is preferable that the filament A-1 is a filament obtained by dissolving and removing the sea component of a sea-island type composite fiber composed of a sea component and an island component. Further, the filament A-1 is obtained by combining a sea-island type composite fiber composed of a sea component and an island component with the fiber A-2, and then dissolving and removing the sea component of the sea-island type composite fiber. Is preferable. Further, it is preferable that the filament A-1 is made of polyester fiber. Further, it is preferable that the fiber A-2 is a crimped fiber having a single fiber diameter of 5 μm or more and an actual crimping rate of 2% or more. At that time, it is preferable that the crimped fiber is a composite fiber in which two components are bonded to a side-by-side type or an eccentric core sheath type, or a false twist crimped yarn. Further, it is preferable that the total fineness of the yarn is in the range of 50 to 1400 dtex. Further, it is preferable that the yarn is dyed.

Further, according to the present invention, a fabric obtained by using the above-mentioned yarn is provided. At that time, it is preferable that the fabric further contains the thread B containing the elastic fiber. The weight ratio (A-1 + A-2): B between the total weight of the filament A-1 and the fiber A-2 and the yarn B is preferably in the range of 95: 5 to 30:70. Further, it is preferable that the friction coefficient is in the range of 0.4 to 2.5 on the front surface or the back surface of the fabric.
Further, according to the present invention, any textile product selected from the group consisting of socks, gloves, supporters, clothing, woven tapes, and strings obtained by using the above-mentioned threads or fabrics is provided. ..

According to the present invention, a yarn containing an ultrafine filament, which is excellent in handleability and can obtain a high-quality fabric or textile product, and a fabric using the yarn, and a fabric made by using the yarn. A textile product made by using the above-mentioned yarn or cloth can be obtained.

Hereinafter, embodiments of the present invention will be described in detail. The thread of the present invention (hereinafter, also referred to as “thread A”) includes a filament A-1 having a single fiber diameter of 10 to 3000 nm and a fiber A having a larger single fiber diameter than the filament A-1. -2 is included.

Here, in the filament A-1 (hereinafter, also referred to as “nanofiber”), the single fiber diameter (diameter of the single fiber) is 10 to 3000 nm (preferably 250 to 1500 nm, particularly preferably 400 to It is important that it is within the range of 800 nm). If the single fiber diameter is smaller than 10 nm, the fiber strength is lowered, which is not preferable. On the contrary, when the single fiber diameter is larger than 3000 nm, anti-slip performance, wiping performance, soft texture and the like may not be obtained, which is not preferable. Here, when the cross-sectional shape of the single fiber is a modified cross section other than the round cross section, the diameter of the circumscribed circle is taken as the single fiber diameter. The single fiber diameter can be measured by photographing the cross section of the fiber with a transmission electron microscope.

The number of filaments in the filament A-1 is not particularly limited, but is preferably 500 or more (more preferably 2000 to 60,000) in order to obtain anti-slip performance, wiping performance, soft texture and the like.

The fiber form of the filament A-1 is not particularly limited, and may be a spun yarn or a long fiber (multifilament yarn). In particular, long fibers (multifilament yarn) are preferable. The cross-sectional shape of the single fiber is not particularly limited, and a known cross-sectional shape such as round, triangular, flat, or hollow may be used. In addition, air processing such as interlacing processing and Taslan (registered trademark) processing, and false twist crimping processing may be performed.

As the fiber type of the filament A-1, polyester fiber, polyphenylene sulfide (PPS) fiber, polyolefin fiber or nylon (Ny) fiber is preferable.

Examples of the polyester forming the polyester fiber include polyethylene terephthalate (PET), polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, and aromatics such as isophthalic acid and 5-sulfoisophthalic acid metal salt having these as the main repeating units. Copolymers with aliphatic dicarboxylic acids such as dicarboxylic acid, adipic acid, and sebacic acid, hydroxycarboxylic acid condensates such as ε-caprolactone, and glycol components such as diethylene glycol, trimethylene glycol, tetramethylene glycol, and hexamethylene glycol. preferable. It may be a material-recycled or chemically-recycled polyester, or a polyethylene terephthalate using a monomer component obtained from biomass, that is, a biological substance as a raw material described in JP-A-2009-0916994. Further, a polyester obtained by using a catalyst containing a specific phosphorus compound and titanium compound as described in JP-A-2004-27797 and JP-A-2004- 211268 may be used.

As the polyarylene sulfide resin forming the polyphenylene sulfide (PPS) fiber, any polyarylene sulfide resin may be used as long as it belongs to the category called polyarylene sulfide resin. The polyarylene sulfide resin has, as its constituent units, for example, p-phenylene sulfide unit, m-phenylene sulfide unit, o-phenylene sulfide unit, phenylene sulfide sulfone unit, phenylene sulfide ketone unit, phenylene sulfide ether unit, diphenylene sulfide unit. , Phenylene sulfide unit containing a substituent, phenylene sulfide unit containing a branched structure, and the like. Among them, those containing 70 mol% or more, particularly 90 mol% or more of p-phenylene sulfide units are preferable, and poly (p-phenylene sulfide) is more preferable.

Further, the polyolefin fiber includes polypropylene fiber and polyethylene fiber.
Nylon fibers include nylon 6 fibers and nylon 66 fibers.

In the polymer forming the filament A-1, if necessary, a micropore forming agent, a cationic dye dyeing agent, a coloring inhibitor, a heat stabilizer, and a fluorescent whitening agent are contained within a range that does not impair the object of the present invention. An agent, a matting agent, a coloring agent, a hygroscopic agent, and inorganic fine particles may be contained in one or more types.

The method for producing the filament A-1 is not particularly limited, and examples thereof include a method for dissolving and removing the sea component of a sea-island type composite fiber composed of a sea component and an island component, an electrospinning method, and a conventional spinning and stretching method. ..

Next, in the fiber A-2, the fiber form is not particularly limited, and it may be a spun yarn or a long fiber (multifilament yarn). In particular, long fibers (multifilament yarn) are preferable in order to obtain excellent elasticity. The cross-sectional shape of the single fiber is not particularly limited, and a known cross-sectional shape such as round, triangular, flat, or hollow may be used. In addition, normal air processing and false twist crimping may be applied.

Examples of the fiber type of the fiber A-2 include polyester fiber, polyphenylene sulfide (PPS) fiber, polyolefin fiber, nylon (Ny) fiber, cotton, acrylic fiber, rayon, acetate fiber and the like.

The total fineness and the single fiber fineness of the fiber A-2 are appropriately selected according to the intended use, and are preferably in the range of the total fineness of 20 to 200 dtex and the single fiber fineness of 0.5 to 10.0 dtex. The number of filaments is preferably in the range of 1 to 300. The single fiber diameter is preferably in the range of 5 to 20 μm. If the single fiber diameter is less than 5 μm, the shape retention of the yarn may be impaired. On the contrary, when the single fiber diameter is larger than 20 μm, a soft texture may not be obtained. Here, when the cross-sectional shape of the single fiber is a modified cross section other than the round cross section, the diameter of the circumscribed circle is taken as the single fiber diameter. The single fiber diameter can be measured by photographing the cross section of the fiber with a transmission electron microscope as described above.

Further, it is preferable that the fiber A-2 is a crimped fiber. In particular, a crimped fiber having a single fiber diameter of 5 μm or more (more preferably 5 to 20 μm) and an actual crimp rate of 2% or more (more preferably 2 to 40%) is preferable. The crimped fiber is preferably a composite fiber in which two components are bonded to a side-by-side type or an eccentric core sheath type, or a false twist crimped yarn.

The composite fiber is a composite fiber in which two components are bonded in a side-by-side type or an eccentric core sheath type. When the yarn of the present invention contains not only the filament A-1 but also such a composite fiber, the composite fiber takes the form of three-dimensional coil crimping in the heat treatment step, and the yarn is imparted with elasticity. As a result, elasticity is also imparted to the fabric.

Here, examples of the two components forming the composite fiber include a combination of polyester and polyester, a combination of polyester and nylon, and the like. More specifically, a combination of polytrimethylene terephthalate and polytrimethylene terephthalate, a combination of polytrimethylene terephthalate and polyethylene terephthalate, a combination of polyethylene terephthalate and polyethylene terephthalate, and the like are preferable. At that time, it is preferable to make the intrinsic viscosities different from each other. Further, it may contain additives such as antioxidants, ultraviolet absorbers, heat stabilizers, flame retardants, titanium oxide, colorants, and inert fine particles.

The polyester may be a material-recycled or chemically-recycled polyester. Furthermore, polyesters, polylactic acids, and stereocomplex polys obtained by using a catalyst containing a specific phosphorus compound and titanium compound as described in JP-A-2004-27797 and JP-A-2004- 211268. Although lactic acid may be used, an elastic resin such as a polyether ester or polyurethane is preferable in the case of pursuing a non-slip effect. In the polymer, if necessary, a micropore forming agent, a cationic dye dyeing agent, an antioxidant, a heat stabilizer, a fluorescent whitening agent, a matting agent, and a coloring agent are contained within a range that does not impair the object of the present invention. The agent, the hygroscopic agent, and the inorganic fine particles may be contained in one kind or two or more kinds.

The thread of the present invention includes the filament A-1 and the fiber A-2. At that time, as the weight ratio of the fiber A-2 contained in the yarn, the weight ratio of the fiber A-2 is 2 to 40 weight with respect to the weight of the yarn in order to achieve both the characteristics of the filament A-1 and the elasticity. It is preferably in the range of% (more preferably 4 to 30% by weight, particularly preferably 4 to 20% by weight).

In the yarn of the present invention, the composite method of the filament A-1 and the fiber A-2 is not particularly limited, but a composite false twisting method, an air mixed fiber method, a combined twisting method, a covering method and the like are preferably exemplified.

In addition to the filament A-1 and the fiber A-2, the thread of the present invention may further contain elastic fibers such as polyurethane fibers and polyether ester fibers.

The total fineness (product of single fiber fineness and number of filaments) of the yarn of the present invention is preferably in the range of 50 to 1400 dtex (more preferably 65 to 800 dtex, particularly preferably 65 to 400 dtex). If the total fineness is less than 50 dtex, the yarn strength may decrease. On the contrary, when the total fineness is larger than 1400 dtex, it may be difficult to set the yarn in the manufacturing equipment when the textile product is obtained by using the yarn.

When the yarn of the present invention is dyed, it is not necessary to dye the fabric or textile after obtaining the fabric or textile using the yarn, which is preferable. Here, it is preferable that the lightness index of the yarn after the dyeing process is in the range of 10 to 90.

A sizing agent is attached to the thread of the present invention. The sizing agent may be any one having a sizing property that allows it to be visually determined that the single yarns are aggregated in a state where the yarns are free (non-tensioned state). If a sizing agent is not applied, the handleability of the yarn is deteriorated, and high-quality fabrics and textile products may not be obtained, which is not preferable.

Here, as a sizing agent, at least one of a sizing agent (sometimes referred to as a sizing agent) and an oil agent (sometimes referred to as an oiling agent) can be obtained in order to obtain excellent sizing properties. Is preferably contained. It may consist of only one of the paste and the oil, or it may consist of both.

Examples of such a paste include PVA (polyvinyl alcohol) and acrylic pastes such as polyacrylic acid ester, polyacrylic acid, polymethacrylic acid ester, polymethacrylic acid, and sodium polyacrylate.

On the other hand, as the oil agent, for example, an oil agent as described in Japanese Patent Application Laid-Open No. 10-158939 or a lubricating oil (mineral oil) may be used. Commercially available products such as "LAN-401" (product name) manufactured by NICCA CHEMICAL CO., LTD. And "Bryan C-1840-1" (product name) manufactured by Matsumoto Yushi Seiyaku Co., Ltd. are called Corning oils. It is preferably exemplified.

The thread of the present invention needs to contain wax. By applying the above-mentioned converging agent and wax to the yarn, the slip of the yarn is improved during twisting, weaving and knitting, and high-quality fabrics and textile products can be obtained. Examples of such waxes include natural waxes such as carnauba wax, candelilla wax and montan wax, and glycol-based synthetic waxes such as polyethylene wax and polyethylene glycol (PEG).
Further, the sizing agent and the wax may contain a surfactant.

In the yarn of the present invention, the amount of the sizing agent adhered is in the range of 0.1 to 15% by weight (preferably 0.1 to 10% by weight) in terms of solid content weight with respect to the weight of the yarn. preferable. If the glue does not adhere to the surface of the yarn, or if the amount of adhesion is less than 0.1% by weight, the yarn contains ultrafine filaments, and the yarn is used to manufacture fabrics and textile products. There is a risk that fluffing will occur and quality problems will occur. On the contrary, when the adhered amount is larger than 15% by weight, the threads become rigid, which may make it difficult to manufacture fabrics and textile products.

In the yarn of the present invention, the amount of wax adhered is preferably in the range of 0.1 to 10% by weight (preferably 0.1 to 5% by weight) in terms of solid content weight with respect to the weight of the yarn. If the wax does not adhere to the surface of the yarn, or if the amount of adhesion is less than 0.1% by weight, the yarn contains ultrafine filaments, and the yarn is used to manufacture fabrics and textile products. At that time, the thread may get caught in the guide of the loom or the knitting machine, causing a thread breakage and other quality problems. On the contrary, when the adhered amount is larger than 10% by weight, the yarn becomes rigid, which may make it difficult to manufacture a fabric or a textile product, or may reduce the dyeing fastness.

By adhering the wax to the yarn of the present invention, the slip of the yarn is improved, the friction with the guide of the loom or the knitting machine is reduced, and a high-quality fabric or textile product can be obtained. This is especially true for weft knitting machines such as WHOLEGARMENT.

The thread of the present invention can be manufactured, for example, by the following manufacturing method. First, a sea-island type composite fiber (fiber for filament A-1) formed by a sea component and an island component is prepared. As the sea-island type composite fiber, the sea-island type composite fiber multifilament (number of islands 100 to 1500) disclosed in JP-A-2007-2364 is preferably used.

That is, as the sea component polymer, polyester, polyamide, polystyrene, polyethylene and the like having good fiber forming properties are preferable. For example, examples of the easily soluble polymer in an alkaline aqueous solution include polylactic acid, an ultrahigh molecular weight polyalkylene oxide condensation polymer, a polyethylene glycol-based compound copolymerized polyester, and a polyethylene glycol-based compound and a 5-sodium sulfonic acid isophthalic acid copolymerized polyester. Suitable. Among them, polyethylene terephthalate-based copolymerized polyester having an intrinsic viscosity of 0.4 to 0.6 obtained by copolymerizing 6 to 12 mol% of 5-sodium sulfoisophthalic acid and polyethylene glucol having a molecular weight of 4000 to 12000 by 3 to 10% by weight. Is preferable.

On the other hand, as the island component polymer, polyesters such as fiber-forming polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, and polyester obtained by copolymerizing the third component are preferable. In the polymer, if necessary, a micropore forming agent, a cationic dye dyeing agent, an antioxidant, a heat stabilizer, a fluorescent whitening agent, a matting agent, and a coloring agent are contained within a range that does not impair the object of the present invention. The agent, the hygroscopic agent, and the inorganic fine particles may be contained in one kind or two or more kinds.

In the sea-island type composite fiber composed of the above-mentioned sea component polymer and island component polymer, it is preferable that the melt viscosity of the sea component at the time of melt spinning is larger than the melt viscosity of the island component polymer. Further, the diameter of the island component needs to be in the range of 10 to 3000 nm. At that time, if the shape of the island component is not a perfect circle, the diameter of the circumscribed circle is obtained. In the sea-island type composite fiber, the sea-island composite weight ratio (sea: island) is preferably in the range of 40:60 to 5:95, and particularly preferably in the range of 30:70 to 10:90.

Such a sea-island type composite fiber can be easily produced by, for example, the following method. That is, melt spinning is performed using the above-mentioned sea component polymer and island component polymer. As the spinneret used for melt spinning, any spinneret can be used, such as one having a hollow pin group or a micropore group for forming an island component. The discharged sea-island type cross-section composite fiber is solidified by cooling air, preferably melt-spun at 400 to 6000 m / min, and then wound up. The obtained undrawn yarn is made into a composite fiber (drawn yarn) having desired strength, elongation, and heat shrinkage characteristics through a separate drawing step, or is taken up by a roller at a constant speed without being wound once. Any method may be used in which the material is subsequently wound up after being subjected to a stretching step. In such a sea-island type composite fiber, the single fiber fineness, the number of filaments, and the total fineness are preferably within the ranges of the single fiber fineness of 0.5 to 10.0 dtex, the number of filaments of 5 to 75, and the total fineness of 30 to 170 dtex, respectively. ..

Next, a yarn is manufactured using the sea-island type composite fiber, the fiber A-2, and, if necessary, other fibers (A-3, A-4, ...). Here, a method of arranging the sea-island type composite fiber in the outermost layer with the yarn as a three-layer structure and arranging other fibers in the intermediate layer so that the sea-island type composite fiber is easily exposed on the surface of the yarn, It is preferable to prepare the core-sheath type composite yarn in which the sea-island type composite fiber is arranged in the sheath portion and the fiber A-2 is arranged in the core portion. At that time, the machine used is not limited, and a conventionally known air mixing machine, false twist crimping machine, or covering machine may be used. Further, when the obtained composite yarn is made into a textile product such as a woven or knitted fabric, it may be further twisted at 500 times / m or less.

Next, the yarn is treated with an alkaline aqueous solution, and the sea component of the sea-island type composite fiber is dissolved and removed with the alkaline aqueous solution to obtain the sea-island type composite fiber into a filament A-1 having a single fiber diameter of 10 to 3000 nm. At that time, as a condition for treating the alkaline aqueous solution, it is preferable to use a NaOH aqueous solution having a concentration of 1 to 4% and treat at a temperature of 55 to 98 ° C.

Further, the yarn may be dyed before and / or after the dissolution and removal with the alkaline aqueous solution. Furthermore, various functions such as conventional brushing treatment, water repellent treatment, UV shielding or antistatic agent, antibacterial agent, deodorant, insect repellent, phosphorescent agent, retroreflective agent, negative ion generator, etc. are imparted. Processing may be additionally applied.

The sea component of the sea-island type composite fiber is dissolved and removed with an alkaline aqueous solution to obtain a yarn containing filament A-1 and fiber A-2 having a single fiber diameter of 10 to 3000 nm, and then a sizing agent is applied to the yarn. The yarn of the present invention can be obtained by drying, if necessary. At that time, the processing machine to be used may be a conventionally known sizing machine without any restrictions.

The step of dissolving and removing the sea component of the sea-island type composite fiber with an alkaline aqueous solution may be performed in a step before the composite of the sea-island type composite fiber and the fiber A-2, or may be performed in a later step.

The yarn thus obtained is a yarn containing an ultrafine filament, which is excellent in handleability and elasticity, and can obtain a high-quality fabric or textile product.

Next, the fabric of the present invention is a fabric woven, knitted or woven using the above-mentioned threads. The fabric may be composed of only the above-mentioned threads (threads A), but may be composed of the above-mentioned threads (threads A) and other threads. As such other threads, a thread containing elastic fibers (thread B) is preferable. At that time, the thread (thread A) and the thread B may be combined and included in the fabric as a composite thread, or the thread (thread A) and the thread B may be interwoven or interlaced. It may be knitted and contained in the fabric.

Here, the thread B may be composed of only elastic fibers, or may be composed of elastic fibers and non-elastic fibers.

For example, a core-sheath type composite yarn in which elastic fibers are arranged in the core portion and inelastic fibers are arranged in the sheath portion may be used. For example, a core-sheath type composite yarn called FTY (Filment Twistered Yarn) in which elastic fibers such as polyamide-based, polyurethane-based, and polyester-based fibers are arranged in the core portion and polyester fibers, nylon fibers, and the like are covered on the sheath side is more preferable. If the fabric does not contain elastic fibers, the elasticity of the fabric may decrease and the comfort of the sock may decrease. Further, in order to prevent stuffiness in shoes, cotton may be used as the thread B.

The total fineness of the yarn B is preferably in the range of 10 to 800 dtex (preferably 20 to 500 dtex). If the total fineness is less than 10 dtex, sufficient elasticity may not be obtained, and comfort as socks may not be obtained. Further, when the total fineness exceeds 800 dtex, the elasticity is too large, and there is a possibility that the morphology of the fabric cannot be stably maintained.

In the present invention, the weight ratio of the total weight of the filament A-1 and the fiber A-2 (the weight of the thread A) to the thread B (A-1 + A-2): B is 30:70 to 95. : It is preferably in the range of 5. If the ratio of (A-1 + A-2) is smaller than this range, a sufficient anti-slip effect may not be obtained. On the contrary, when the ratio of the threads B is smaller than this range, the elasticity of the woven or knitted fabric is insufficient, and when the sock is obtained by using the cloth, the comfort as the sock may be lowered.

In the cloth, it is preferable that the threads A are exposed on both the front surface and the back surface of the cloth. By exposing the thread A (filament A-1) to the skin, an excellent frictional force with the skin is obtained, socks are less likely to slip, and wearing comfort is improved. Further, by exposing the thread A (filament A-1) to the outside air side, an excellent frictional force with shoes or the like can be obtained, the thread becomes less slippery, and the wearing comfort is improved.

In the cloth, the woven structure and the knitted structure of the cloth are not particularly limited. Examples of the weft knitting organization include a tenjiku knitting, a rubber knitting, a double-sided knitting, a pearl knitting, a tack knitting, a floating knitting, a one-sided knitting, a lace knitting, and a hair-covering knitting. Examples of the vertical knitting organization include single denby, single atlas, double chord, half, half base, satin, half tricot, fleece, and jacquard. Examples of the woven fabric include three original textures such as plain weave, twill weave, and satin weave, variable texture, single double weave such as vertical double weave and horizontal double weave, and vertical velvet. It is not limited to these. The number of layers may be a single layer or may be two or more layers.

Further, it is preferable that the friction coefficient is 0.4 to 2.5 (preferably 0.5 to 2.3) on the front surface or the back surface of the fabric. If the coefficient of friction is less than 0.4, it may not be possible to obtain sufficient anti-slip. Further, when the coefficient of friction exceeds 2.5, it may be difficult to put on or take off shoes because the frictional resistance is too large. As for the coefficient of friction, the coefficient of static friction shall be measured by the method of ASTM D1894-95.

By soaping (refining) the fabric, the sizing agent and wax adhering to the yarn A are removed, and the fabric exhibits excellent anti-slip performance, wiping performance, soft texture, elasticity and the like. Furthermore, since it is manufactured using the above-mentioned threads, it has excellent processability and high quality.

Next, the textile product of the present invention is any textile product selected from the group consisting of socks, gloves, supporters, clothing, woven tapes, and strings obtained by using the above-mentioned thread A or fabric. be.

Further, in socks, it is preferable that the thread A is arranged on the heel, the sole of the foot, a part or all of the toes, and the like. The shape of the socks is not particularly limited, and may be men's socks, women's socks, infant socks, pumps-in type socks called foot covers, stockings, or the like.

The fiber product is soaped (refined) to remove the sizing agent and wax adhering to the yarn, and exhibits excellent anti-slip performance, wiping performance, soft texture, elasticity and the like. Furthermore, since it is manufactured using the above-mentioned threads, it has excellent processability during knitting and weaving and is of high quality.

Next, examples and comparative examples of the present invention will be described in detail, but the present invention is not limited thereto. In addition, each measurement item in an Example was measured by the following method.
<Melting viscosity>
The polymer after the drying treatment is set in an orifice set to the ruder melting temperature at the time of spinning, melted and held for 5 minutes, then extruded by applying a load of several levels, and the shear rate and the melting viscosity at that time are plotted. The plots were gently connected to create a shear rate-melt viscosity curve and the melt viscosity at a shear rate of 1000 s-1 was observed.
<Dissolution rate>
The yarn is wound at a spinning speed of 1000 to 2000 m / min with a base of 0.3φ-0.6L × 24H for each of the sea and island components, and further stretched so that the residual elongation is in the range of 30 to 60%. A multifilament having a total fineness of 84 dtex / 24 fil was produced. The weight loss rate was calculated from the dissolution time and the dissolution amount at a bath ratio of 100 at the temperature at which this was to be dissolved with each solvent.
<Single fiber diameter>
After taking a photograph of the cloth with an electron microscope, the single fiber diameter was measured with n number 5 and the average value was obtained.
<Actual crimp rate>
From the length (L0) measured by taking out only the crimp fiber A-2 from the thread and under a load of 0.222 gr / dtex, and the length (L1) after 1 minute with a load of 2 mg / dtex, the following Calculated by the formula.
Actual crimp rate (%) = [(L0-L1) / L0] × 100
<Amount of sizing agent attached>
About 2 gr of the yarn was taken with a heddle machine, dried at 105 ° C. for 2 hours, and allowed to cool in a desiccator containing silica gel for 2 hours, and then the weight (W1) was measured. Then, the yarn was treated in an aqueous solution at 98 ° C. containing 4 gr / L of soda ash, 2 gr / L of surfactant and 2 gr / L of sodium tripolyphosphate for 1 hour. The treated yarn was dried at 105 ° C. for 2 hours and allowed to cool in a desiccator containing silica gel for 2 hours, and then the weight (W2) was measured. It was calculated as the amount of adhesive adhered from the following formula.
Adhesion amount of glue (%) = (W1-W2) / W1 × 100
<Handling of threads>
The processability when knitting a weft knit using a thread was evaluated on a three-point scale of "excellent", "normal", and "inferior due to fluffing".
<Friction coefficient>
The coefficient of static friction was measured by the method of ASTM D1894-95. The value of the static friction coefficient was taken as the friction coefficient.

[Example 1]
Polyethylene terephthalate as an island component (melt viscosity at 280 ° C. is 1200 poisons, content of matting agent: 0% by weight), 6 mol% of 5-sodium sulfoisophthalic acid as a sea component and 6% by weight of polyethylene glycol having a number average molecular weight of 4000. (Melting rate ratio (sea / island) = 230), sea: island = 30:70, number of islands = 836, sea-island type composite unstretched fiber Was melt-spun at a spinning temperature of 280 ° C. and a spinning speed of 1500 m / min, and once wound up.

The obtained undrawn yarn was roller-drawn at a drawing temperature of 80 ° C. and a drawing ratio of 2.5 times, then heat-set at 150 ° C. and wound. The obtained sea-island type composite fiber (fiber for filament A-1, drawn yarn) had a total fineness of 56 dtex / 10 fil, and when the cross section of the fiber was observed by a transmission electron microscope TEM, the shape of the island was round and the island was formed. The diameter of the fiber was 700 nm.

The two sea-island type composite fibers obtained and the side-by-side type composite fiber multifilament in which one component constituting the single fiber is polytrimethylene terephthalate and the other component is polyethylene terephthalate (total fineness 56 dtex / 36fil; single fiber diameter 12 μm, Fiber A-2) A mixed fiber yarn was obtained by arranging one fiber and interlacing it.

Then, in order to remove the sea component of the sea-island type composite fiber contained in the mixed fiber yarn, the weight was reduced by 20% (alkali weight loss) at 70 ° C. with a 2.0% NaOH aqueous solution. After that, it was dyed in gray by a conventional dyeing process.

Then, as a sizing agent (glue), PVA (molecular weight 500) 5% sol. And polyacrylic acid ester 1% sol. , PEG1000 (molecular weight 1000) 2% sol. An aqueous solution containing the above-mentioned yarn was prepared, and the yarn was continuously immersed in an aqueous solution of a sizing agent while being unwound, and then wound while being dried at a temperature of 80 ° C.

The obtained yarn is composed of a filament A-1 having a single fiber diameter of 700 nm and a side-by-side type composite fiber multifilament (fiber A-2) having a single fiber diameter of 12 μm and an apparent crimp rate of 5.2%. The total fineness of the yarn was 157 dtex, the amount of the sizing agent (glue) attached was 7.2% by weight, and the amount of wax attached was 1% by weight.

When a cloth made of a weft knit having a smooth structure was knitted using the obtained yarn using MACH2SIR (14 gauge) manufactured by Shima Seiki Co., Ltd., the yarn has elasticity and slipperiness. It was able to knit stably, did not break threads due to fluff, etc., and was excellent in handleability.

The obtained weft knit was soda ash 4% sol. And surfactant 2% sol. As a result of soaping with an aqueous solution at 60 ° C. containing the above, the sizing agent (glue) and wax were completely removed, and the filament A-1 having a single fiber diameter of 700 nm was exposed, which was extremely non-slippery. The coefficient of friction was 2.2, which was a very high value. In addition, no knitting defects such as thread breakage due to fluff or the like were observed, and the quality was high. Next, when socks were obtained using the weft knitted fabric, they were of high quality.

[Example 2]
Two sea-island type composite fibers obtained in the same manner as in Example 1 and one polyethylene terephthalate multifilament total fineness 56dtex / 48fil (single fiber diameter 10.5 μm, fiber for fiber A-2) are aligned and composited. A composite yarn was obtained by false twisting and crimping.

Then, in order to remove the sea component of the sea-island type composite fiber contained in the composite yarn, the weight was reduced by 20% (alkali weight loss) at 70 ° C. with a 2.0% NaOH aqueous solution. After that, it was dyed in gray by a conventional dyeing process.

Then, as a sizing agent (glue), PVA (molecular weight 500) 5% sol. And polyacrylic acid ester 1% sol. , PEG1000 (molecular weight 1000) 2% sol. An aqueous solution containing the above-mentioned yarn was prepared, and the yarn was continuously immersed in an aqueous solution of a sizing agent while being unwound, and then wound while being dried at 80 ° C.

The obtained yarn is a polyester multifilament (fiber A-2) composed of a filament A-1 having a single fiber diameter of 700 nm and a false twist crimped yarn having a single fiber diameter of 10.5 μm and an actual crimp rate of 7.8%. ), The total fineness of the yarn was 162 dtex, the amount of the sizing agent (glue) attached was 9.6% by weight, and the amount of wax attached was 1.5% by weight.

As a result of the soaping process in the same manner as in Example 1, the sizing agent (glue) and the wax were completely removed, and the filament A-1 having a single fiber diameter of 700 nm was exposed, and the filament A-1 was very non-slippery. The coefficient of friction was 2.0, which was a very high value. In addition, no knitting defects such as thread breakage due to fluff or the like were observed, and the quality was high. Next, when gloves were obtained using the weft knitted fabric, they were of high quality.

[Example 3]
In Example 1, an oil agent (“Bryan C-1840-1” (product name) manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.) was used instead of the glue as the focusing agent, and the amount of the oil agent (focusing agent) adhered was 5.5. The same as in Example 1 was carried out except that the weight was changed to%. As a result of the soaping process, the oil agent (focusing agent) and the wax were completely removed, and the filament A-1 having a single fiber diameter of 700 nm was exposed, making it extremely non-slippery. The coefficient of friction was 2.2, which was a very high value. In addition, no knitting defects such as thread breakage due to fluff or the like were observed, and the quality was high. Then, when socks were obtained using the weft knitted fabric, they were of high quality.

[Comparative Example 1]
In Example 1, PVA (molecular weight 500) 5% sol. And polyacrylic acid ester 1% sol. The same as in Example 1 except that an aqueous solution containing (does not contain a wax component) was prepared, the threads were continuously immersed in the sizing agent aqueous solution while being unwound, and then wound while being dried at a temperature of 80 ° C. , A thread with only a sizing agent (glue) was obtained.

When a fabric made of a knitted fabric having a smooth structure was knitted using the obtained yarns using the same weft knitting machine as in Example 1, the yarns lacked slipperiness, resulting in fluff and yarn breakage. I couldn't get the knitted fabric.

[Comparative Example 2]
A composite yarn was obtained in the same manner as in Example 1, and an alkali-reduced yarn was obtained. Then, as a wax, PEG1000 (molecular weight 1000) 5% sol. An aqueous solution containing only the above-mentioned yarn was prepared, and the yarn was continuously immersed in the sizing agent aqueous solution while being unwound, and then wound while being dried at 80 ° C. When a fabric made of a weft knitted fabric having a smooth structure was knitted using the obtained yarn using MACH2SIR (14 gauge) manufactured by Shima Seiki Co., Ltd., the convergence of the yarn was poor and the yarn was used as a guide or the like. Was scraped off, fluffing occurred, and thread breakage occurred frequently. The composite yarn was inferior in handleability. The coefficient of friction was as high as 1.9, but the obtained weft knit was of poor quality.

[Example 4]
Two sea-island type composite fibers obtained in the same manner as in Example 1 and one polyethylene terephthalate multifilament total fineness 56dtex / 48fil (single fiber diameter 10.5 μm, fiber A-2) are aligned and composite false twist. A composite yarn was obtained by crimping. The two obtained composite yarns were twisted together with a twisting machine at a number of twists of 120 times / m of Z twisting.

Then, in order to remove the sea component of the sea-island type composite fiber contained in the combined twisted yarn, the weight was reduced by 20% (alkali weight loss) at 70 ° C. with a 2.0% NaOH aqueous solution. After that, it was dyed in beige by a conventional dyeing process.

Then, as a sizing agent (glue), PVA (molecular weight 500) 5% sol. And polyacrylic acid ester 1% sol. , PEG1000 (molecular weight 1000) 2% sol. An aqueous solution containing the above-mentioned yarn was prepared, and the yarn was continuously immersed in the sizing agent aqueous solution while being unwound, and then wound while being dried at a temperature of 80 ° C. to obtain a twisted yarn composed of two composite yarns.

In the obtained combined twisted yarn, a filament A-1 having a single fiber diameter of 700 nm is arranged in a sheath portion, and a polyethylene terephthalate multifilament (fiber A-2) having a single fiber diameter of 10.5 μm and an apparent crimp rate of 7.8% is obtained. Arranged in the core, the total fineness of the yarn was 320 dtex, the amount of the sizing agent (glue) adhered was 9.0% by weight, and the amount of wax adhered was 1.4% by weight.

The obtained combined twisted yarn (thread A) and the covering yarn FTY70T / 2 (thread B) in which polyurethane fibers are arranged in the core and nylon fibers are arranged in the sheath are twisted 350 times / m. After twisting with a twisting machine according to the number of twists, a non-twisting set was performed at a temperature of 70 ° C. Socks were knitted using the same weft knitting machine as in Example 1 using the obtained combined twisted yarn for the heel, sole, and toe portion, and using a blended yarn of polyester and cotton and nylon yarn other than that.

Since the yarn A has elasticity and slipperiness, and the yarn B has elasticity, it can be knitted stably, no yarn breakage due to fluff or the like occurs, and the handleability is excellent. The obtained weft knit was soda ash 4% sol. And surfactant 2% sol. As a result of soaping with an aqueous solution at 60 ° C. containing the above, the sizing agent (glue) and wax were completely removed, and the filament A-1 having a single fiber diameter of 700 nm was exposed on both sides of the fabric, making it extremely non-slip. rice field. The coefficient of friction was 0.6.

[Example 5]
Two sea-island type composite fibers obtained in the same manner as in Example 4, and side-by-side type composite fiber multifilament (total fineness 56dtex / 36fil) in which polytrimethylene terephthalate and polyethylene terephthalate are bonded side-by-side to form a single fiber. A single fiber diameter of 12 μm, for fiber A-2) was interlaced to obtain a mixed fiber.

Then, in order to remove the sea component of the sea-island type composite fiber contained in the mixed fiber yarn, the weight was reduced by 20% (alkali weight loss) at 70 ° C. with a 2.0% NaOH aqueous solution. After that, it was dyed in beige by a conventional dyeing process.

Then, as a sizing agent (glue), PVA (molecular weight 500) 5% sol. And polyacrylic acid ester 1% sol. , PEG1000 (molecular weight 1000) 2% sol. An aqueous solution containing the above-mentioned yarn was prepared, and the yarn was continuously immersed in the sizing agent aqueous solution while being unwound, and then dried at a temperature of 80 ° C. to obtain a wound composite yarn (thread A).

In the obtained composite yarn (thread A), from filament A-1 having a single fiber diameter of 700 nm and side-by-side type composite fiber multifilament (fiber A-2) having a single fiber diameter of 12 μm and an apparent crimp rate of 5.2%. The total fineness was 310 dtex, the amount of the sizing agent (glue) attached was 7.0% by weight, and the amount of wax attached was 0.9% by weight.

Using a twisting machine, the obtained twisted yarn (thread A) and the covering yarn FTY70T / 2 (thread B) in which polyurethane fibers are arranged in the core and nylon fibers are arranged in the sheath are used. After the S-twisting was performed at a twisting rate of 350 times / m, the anti-twisting set was performed at a temperature of 70 ° C. The obtained synthetic twisted yarn was used for the heel, sole, and toe portion, and other than that, a blended yarn of polyester fiber and cotton and a nylon yarn were used, and the sock was knitted using the same weft knitting machine as in Example 1. ..

At that time, since the yarn A has elasticity and slipperiness, and the yarn B has elasticity, stable knitting can be performed, no yarn breakage due to fluff or the like occurs, and the handleability is excellent. The obtained round knit was made into soda ash 4% sol. And surfactant 2% sol. As a result of soaping with an aqueous solution having a temperature of 60 ° C., the sizing agent (glue) and wax were completely removed, and the filament A-1 having a single fiber diameter of 700 nm was exposed on both sides of the fabric, making it extremely non-slip. there were. The coefficient of friction was 0.65.

[Example 6]
The composite yarns (threads A) obtained in the same manner as in Example 4 were all the same as in Example 4 except that they were twisted into three yarns.
At that time, since the yarn A has elasticity and slipperiness, and the yarn B has elasticity, stable knitting can be performed, no yarn breakage due to fluff or the like occurs, and the handleability is excellent. The obtained weft knit was soda ash 4% sol. And surfactant 2% sol. As a result of soaping with an aqueous solution at 60 ° C. containing the above, the sizing agent (glue) and wax were completely removed, and the filament A-1 having a single fiber diameter of 700 nm was exposed on both sides of the fabric, making it extremely non-slip. rice field. The coefficient of friction was 0.55.

[Example 7]
The composite yarns (threads A) obtained in the same manner as in Example 5 were all the same as in Example 5 except that they were twisted into three yarns.
At that time, since the yarn A has elasticity and slipperiness, and the yarn B has elasticity, stable knitting can be performed, no yarn breakage due to fluff or the like occurs, and the handleability is excellent. The obtained weft knit was soda ash 4% sol. And surfactant 2% sol. As a result of soaping with an aqueous solution having a temperature of 60 ° C., the sizing agent (glue) and wax were completely removed, and the filament A-1 having a single fiber diameter of 700 nm was exposed on both sides of the fabric, making it extremely non-slip. there were. The coefficient of friction was 0.6.

According to the present invention, a yarn containing an ultrafine filament, which is excellent in handleability and elasticity, and which can obtain a high-quality fabric or textile product, and the above-mentioned yarn are used. Fabrics and textile products made from the threads or fabrics are provided, and their industrial value is extremely high.

Claims (16)

A yarn containing a filament A-1 having a single fiber diameter of 10 to 3000 nm and a fiber A-2 having a larger single fiber diameter than the filament A-1, and a sizing agent and wax are applied to the yarn. The yarn is characterized in that the wax is a glycol-based wax and the amount of the wax adhered is 0.1 to 10% by weight in terms of solid content with respect to the weight of the yarn. The thread according to claim 1, wherein the sizing agent contains a glue and / or an oil. The thread according to claim 1 or 2, wherein the amount of the sizing agent adhered is 0.1 to 15% by weight based on the weight of the thread. The yarn according to any one of claims 1 to 3, wherein the number of filaments of the filament A-1 contained in the yarn is 500 or more. The thread according to any one of claims 1 to 4, wherein the filament A-1 is a filament obtained by dissolving and removing the sea component of a sea-island type composite fiber composed of a sea component and an island component. The filament A-1 is a filament obtained by combining a sea-island type composite fiber composed of a sea component and an island component with the fiber A-2, and then dissolving and removing the sea component of the sea-island type composite fiber. , The thread according to any one of claims 1 to 4. The thread according to any one of claims 1 to 6, wherein the filament A-1 is made of polyester fiber. The thread according to any one of claims 1 to 7, wherein the fiber A-2 is a crimped fiber having a single fiber diameter of 5 μm or more and an actual crimping rate of 2% or more. The yarn according to claim 8, wherein the crimped fiber is a composite fiber in which two components are bonded to each other in a side-by-side type or an eccentric core sheath type, or a false twist crimped yarn. The yarn according to any one of claims 1 to 9, wherein the total fineness of the yarn is in the range of 50 to 1400 dtex. The thread according to any one of claims 1 to 10, wherein the thread is dyed. A fabric obtained by using the yarn according to any one of claims 1 to 11. The cloth according to claim 12, wherein the cloth further includes a thread B containing elastic fibers. 13. According to claim 13, the weight ratio (A-1 + A-2): B between the total weight of the filament A-1 and the fiber A-2 and the yarn B is in the range of 95: 5 to 30:70. The fabric described. The fabric according to claim 13 or 14, wherein the friction coefficient is in the range of 0.4 to 2.5 on the front surface or the back surface of the fabric. From a group consisting of socks, gloves, supporters, clothing, woven tape, and strings obtained by using the yarn according to any one of claims 1 to 10 or the cloth according to any one of claims 12 to 15. Any textile product of choice.