JP2023142907A - Warp knitted fabric for clothing - Google Patents

Abstract

To provide a warp knitted fabric for clothing that has shape retaining property excellent in washing durability and good appearance quality while having adequate hygroscopic property and stretchability, which are required for use in uniform.SOLUTION: A warp knitted fabric for clothing is knitted by three or more reeds including a front reed, a middle reed, and a back reed. A yarn formed of polyester fibers containing 0.8 to 3.5 mass% of white metal oxide is used for the front reed and the back reed. A plied yarn formed of a spun yarn containing cellulose fibers and a highly crimped polyester yarn having 20% to 80% of stretch elongation rate after hot water treatment at 90°C is used for the middle reed. The middle reed knits an insertion texture. The warp knitted fabric for clothing satisfies followings: (i) basis weight is 90 to 230 g/m2; (ii) moisture percentage of the knitted fabric in JIS-L1096:2010 8.10 under an environment of 20°C85%RH is 1.0 to 7.0%; (iii) expansion rate in weft direction measured by an expansion rate B method (load 14.7 N) of JIS-L1096 is 25 to 65%; (iv) and anti-see-through property of JIS-L1923:2017B method is 85 to 98%.SELECTED DRAWING: None

Description

The present invention relates to a warp-knitted cellulose-mixed fabric that has excellent hygroscopicity, is lightweight, has appropriate stretchability, and has transparency-proof properties and morphological stability.

Work clothes and sports clothing use highly stretchable knit fabrics so that they follow the movements of the body when worn. Furthermore, in dress shirts, work clothes, white coats, etc., it is preferred to mix cellulose fibers such as cotton for comfort in wearing.

However, woven and knitted fabrics containing cellulose fibers have low stretch properties, and in order to obtain high stretch and stretch back properties, core spun yarns or covering yarns containing spandex as a core are used, or spandex is interwoven. There were many things. For example, in Patent Document 1, a thread made of cellulose long fibers is used as the base thread, a thread made of hydrophobic fiber is used as the face thread, and a thread made of elastic thread, hydrophobic fiber, vegetable fiber, or functional fiber is used as the base thread. A knitted fabric has been proposed in which the top yarn is used as an inlay yarn and these surface yarns and ground yarn are plated.

However, when polyurethane-based elastic fibers with high stretch properties are mixed, there is a problem that the knitted fabric tends to deteriorate due to aging deterioration such as photo-yellowing and hydrolysis of the polyurethane, so it is difficult to use it after repeated washing. It was difficult to use it for purposes such as dress blouses, work clothes, and white coats, where there are many Furthermore, woven or knitted fabrics containing cellulose fibers are difficult to remove wrinkles during washing, and ironing is essential.

As a solution to the above problem, Patent Document 2 discloses a side-by-side type or eccentric sheath-core type composite in which one of the components is mainly composed of polyethylene terephthalate and the other component is mainly composed of polytrimethylene terephthalate. Warp knitted fabrics using polyester composite fibers have been proposed. Furthermore, in Patent Document 3, the back yarn and the front yarn are polyester fibers, and the middle yarn is warp knitted by forming insertion knitting using polyester fibers containing two or more types of polymers and conductive fibers. land is proposed.

Since the knitted fabrics of Patent Documents 2 and 3 do not use polyurethane elastic fibers, warp knitted fabrics having stretchability can be obtained at an advantageous cost, and have excellent washing durability. However, since it is made only of polyester fibers, it has poor hygroscopicity, tends to get stuffy during work, and is inferior in comfort when worn as work clothes.

JP 2019-199678 Publication Japanese Patent Application Publication No. 2004-44069 Japanese Patent Application Publication No. 2022-11744

The present invention was devised to overcome the problems of the prior art described above, and has the appropriate hygroscopicity and stretchability required for uniform applications, as well as excellent shape retention and washing durability. Furthermore, it is a technical problem to provide a warp knitted fabric for clothing with good appearance quality.

As a result of intensive studies in order to solve the above problems, the present inventors have determined that in a warp knitted fabric knitted with three or more reeds, the type of yarn and knitting structure to be used are appropriately selected, and the basis weight and moisture content are The inventors have discovered that the above-mentioned problems can be solved by creating a warp-knitted fabric that satisfies the characteristic values of elasticity, elongation in the weft direction, and see-through resistance, thereby completing the present invention.

That is, the gist of the present invention is the following (1) to (7).
(1) A warp knitted fabric for clothing knitted with three or more reeds including a front reed, a middle reed, and a back reed, made of polyester fiber containing 0.8 to 3.5% by mass of white metal oxides. Yarn is used for the front reed and back reed, and a twisted yarn of spun yarn containing cellulose fiber and highly crimped polyester yarn with a stretch rate of 20% to 80% after treatment with 90°C hot water is used for the middle reed. A warp knitted fabric for clothing, characterized in that the middle reed has an inserted structure and satisfies all of the following conditions (i) to (iv):
(i) The basis weight is 90 to 230 g/m ² ,
(ii) In an environment of 20°C and 85% RH, the moisture content of the knitted fabric according to JIS-L1096:2010 8.10 is 1.0 to 7.0%;
(iii) The elongation rate in the latitudinal direction measured by JIS-L1096 elongation rate B method (load 14.7N) is 25 to 65%,
(iv) The anti-see-through property according to JIS-L1923:2017B method is 85 to 98%.
(2) A spun yarn containing cotton with an English cotton count of 40 to 120 and the above-mentioned highly crimped polyester yarn having no interlace entanglement and a total fineness of 33 to 90 decitex are combined with a twist number of 10 to 300 T/m. The warp knitted fabric for clothing according to (1), characterized in that twisted yarn is used for the middle reed.
(3) The front reed and the back reed have a one-stitch or two-stitch structure, and the underlapping directions of the front reed and the back reed are opposite to each other, as described in (1) or (2). warp knitted fabric for clothing.
(4) The warp knitted fabric for clothing according to any one of (1) to (3), wherein the middle reed has a one-needle or two-needle insertion structure.
(5) The clothing material according to any one of (1) to (4), characterized in that the wash and wear properties after 10 washes and tumble drying are grade 3.0 or higher according to the JIS-L1096-C4M method. knitted fabric.
(6) JIS-L1094:2014 7.2 The frictional charge voltage on the back surface measured by the 2B method is 0 to 2500 V after 10 washes by the JIS-L1096-C4M method (1) to (5) Warp knitted fabric for clothing according to any of the above.
(7) Clothing made from the warp knitted fabric for clothing according to any one of (1) to (6), selected from blouses, dress shirts, uniform shirts, white coats, uniform pants, or uniform jackets. Clothing characterized by:

The warp knitted fabric for clothing of the present invention has stretch properties and moisture absorption properties, and is comfortable to wear, while also having a beautiful appearance and excellent shape retention properties that are resistant to washing. It can be suitably used for frequently worn clothing.

FIG. 1 is an example of a knitting organization chart showing an embodiment of the knitting organization of the back reed, front reed, and middle reed of the warp knitted fabric of the present invention. FIG. 2 is a knitting organization diagram showing one embodiment of the knitting organization of the back reed, front reed, and middle reed of the warp knitted fabric of the example. FIG. 3 is a textile structure chart showing the plain weave of Comparative Example 3.

Hereinafter, the warp knitted fabric for clothing of the present invention will be explained in detail.
The warp knitted fabric for clothing of the present invention is a warp knitted fabric knitted with three or more reeds including a front reed, a middle reed, and a back reed, and yarns made of polyester fiber are used for the front reed and the back reed. A twisted yarn of a spun yarn containing cellulose fiber and a highly crimped polyester yarn is used for the middle reed, and the middle reed is a warp knitted fabric formed by knitting an inserted structure.

First, a twisted yarn of a spun yarn containing cellulose fiber and a highly crimped polyester yarn, which is used for the middle reed constituting the warp knitted fabric for clothing of the present invention, will be described. Spun yarns containing cellulose fibers have the effect of not getting stuffy during wear due to the hygroscopicity of cellulose, improving wearing comfort, and having cellulose fibers on the back side to improve the feel. Cellulose fibers are fibers with a polymer structure of cellulose skeleton, such as natural cellulose fibers such as cotton and hemp, regenerated celluloses (including solvent-spun cellulose) such as lyocell, viscose rayon, polynosic, and high-wet modulus, and copper. Semi-synthetic fibers such as ammonia rayon, diacetate, and triacetate may be mentioned. Among these, cotton is particularly preferred.

The above-mentioned spun yarn is composed only of cellulose fibers or is a spun yarn mainly composed of cellulose fibers. Other fibers can be used in combination without impairing the hygroscopicity of the knitted fabric. Here, the range in which the hygroscopicity of the knitted fabric is not impaired is the range in which the moisture content of the knitted fabric does not fall below 1% in an environment of 20°C and 85% RH (relative humidity), and within this range, fibers other than cellulose fibers can be used together. Specifically, the blending ratio of cellulose fibers in the spun yarn is preferably 50 to 100% by mass, more preferably 60 to 100% by mass, and even more preferably 80 to 100% by mass. When the blending ratio of cellulose fibers is less than the above range, the hygroscopicity of the entire knitted fabric decreases, making it difficult to achieve wearing comfort. Furthermore, from the viewpoint of hygroscopicity and texture, the blending ratio of cellulose fibers in the entire knitted fabric is preferably 3 to 30% by mass, more preferably 5 to 25% by mass.

The total fineness of the spun yarn is preferably from 40 to 120, more preferably from 50 to 100, and even more preferably from 55 to 85. If the count is less than the above range, the yarn will be too thick and the knitted fabric using this spun yarn will be heavy, making it difficult to obtain a thin and light knitted fabric. When the count exceeds the above range, the blending ratio of cellulose fibers in the knitted fabric decreases, and wearing comfort tends to decrease.

When the cellulose fiber is cotton, the effective fiber length of the spun yarn is preferably 30 to 45 mm. More preferably, it is 37 to 43 mm. The effective fiber length of the spun yarn is determined by using, for example, super long staple cotton such as Supima cotton, GIZA45, GIZA92, GIZA96, Subin cotton, Xinjiang cotton, and Kaijima cotton with a fiber length of 35 mm or more, or using upland cotton for extra long staple cotton. It can be adjusted by blending it with medium fiber cotton such as Australian cotton. If the effective fiber length is less than the above range, the surface fluff of the spun yarn will increase, and fiber fluff will easily stand out on the surface of the knitted fabric after repeated washing or the like. Furthermore, when the cellulose is regenerated cellulose, the cut length of the fibers is preferably 30 to 55 mm. More preferably, the cut length is 35 to 48 mm. Within this range, it is easy to make spun yarn using general cotton spinning equipment.

Examples of methods for spinning the spun yarn include various methods such as ring spinning, open-end spinning, and bundled spinning (eg, Murata vortex spinner). Among these, ring spinning is preferred because it is easy to produce fine-count spun yarn and has a good texture. More preferably, it is a combed yarn. Furthermore, before spinning the spun yarn using the various methods described above, it can be subjected to various treatments such as mixed batting, carding, combing, drawing, and roving using general methods. When using the above-mentioned cellulose fibers, first open the fiber mass of cellulose fiber raw cotton, perform a blending process to remove large impurities from the raw cotton, and separate the fibers one by one. The carding process involves removing all the impurities and short fibers, aligning the long fibers that remain as parallel as possible and bunching them into a string (card sliver), then thoroughly removing the short fibers and bunching the remaining long fibers. , a fine carding process to make it into a string (combed sliver), a drawing process to straighten the fibers while stretching the combed sliver, eliminate uneven thickness in the length direction, and make it into a string (drawn sliver). The obtained drawn sliver is twisted to prevent the fibers from slipping off from each other, and then passed through a roving process in which the sliver is wound onto a bobbin to form roving yarn. When using fibers other than cellulose fibers, it is desirable to add them during the mixing process, drawing process, etc. Spun yarn (combed yarn) is finally produced by spinning the obtained roving using a spinning machine.

The twist coefficient of the spun yarn is preferably 2.8 to 5.0. More preferably it is 3.0 to 4.5. When the twist coefficient is within the above range, the yarn can be made to have a soft texture, relatively little fuzz, and high strength. If the twist coefficient is less than the above range, the strength of the yarn decreases, and the productivity of the knitted fabric may decrease, or the strength of the knitted fabric may become unsuitable for the intended use. If the twist coefficient exceeds the above range, the texture of the knitted fabric tends to become stiff, and there is a concern that the knitting properties of the knitted fabric may deteriorate. The twist coefficient K is calculated by determining the number of twists according to JIS-L1095-9.15.1 Method A, and from this number of twists based on the following formula.
Twist coefficient K=[T]/[NE] ^1/2
In the above formula, [T] is the number of twists (twists/2.54 cm), and [NE] is the English cotton count.

In the present invention, the polyester highly crimped yarn to be combined and twisted with the cellulose spun yarn is a polyester long fiber, and is a highly crimped yarn having an elongation rate of 20 to 80% after hot water treatment at 90°C. If the stretch/elongation rate is less than the lower limit of the above range, sufficient stretchability cannot be imparted to the twisted yarn with cellulose spun yarn having low elongation. The lower limit of the stretching ratio is preferably 25% or more, more preferably 30% or more. On the other hand, if the expansion/contraction/elongation ratio exceeds the upper limit of the above range, poor quality or decreased productivity will occur. The upper limit of the expansion/contraction rate is preferably 75% or less, more preferably 70% or less. The stretch/elongation rate can be measured based on JIS-L1013:2010 8.11 Elasticity A method. The stretch/elongation rate of the highly crimped polyester yarn is preferably 10% or more greater than that of the polyester fibers used for the front yarn and back yarn, and more preferably 15% or more. Further, the stretch recovery rate of the highly crimped polyester yarn is 30 to 65%, more preferably 35 to 60%. When the stretch recovery rate is less than the above range, the kickback properties of the yarn combined with the cellulose spun yarn tend to deteriorate. Moreover, if it exceeds the above range, yarn quality such as fuzz tends to deteriorate. The stretch/elongation rate of the highly crimped polyester yarn in the warp knitted fabric for clothing of the present invention is preferably 15 to 55%, more preferably 20 to 50%.

The highly crimped polyester yarn is made by highly crimping polyester long fibers. As for the crimping method, it is preferable to perform false twisting. Examples of false twisting methods include spindle false twisting, friction disk false twisting, and belt false twisting, but spindle false twisting, which can be processed at low speed to achieve high crimp, or low speed type friction disk false twisting are recommended. It is preferable to use

When highly crimped polyester yarn is subjected to highly crimped processing, for example, by spindle false twisting, it is produced as follows. A polyester highly oriented drawn yarn or intermediately oriented yarn is set in a one-stage or two-stage false twisting machine equipped with a twisting heater and an untwisting heater, a predetermined draw ratio determined by the spinning speed is taken, and the heating heater temperature is 180°C to 220°C. A one-stage false twisted yarn is obtained by setting the number of false twists to 2,800 to 10,000 T/M and false twisting at a yarn speed of 80 to 250 m/min. In order to obtain a highly crimped yarn, the number of false twists, the heater temperature, and the yarn speed must be set to such high conditions that uncombustion, fuzz, and yarn breakage do not become a problem during production. The preferred number of false twists is 3000 to 5500 T/m, more preferably 3500 to 4500 T/m. The temperature of the heater is 180°C to 230°C, more preferably 190°C to 210°C. If the number of false twists and the heating heater temperature are lower than these, highly crimp false twisted yarn cannot be obtained, and if the conditions are higher than these, yarn breakage and undissolved combustion occur, resulting in extremely poor operability. In addition, a decombustible heater can be used to improve knitting properties, but in order to maintain high crimp, it is better not to use a decombustible heater or to keep the process at a low temperature of 170°C or less. good.

In the case of friction disk false twisting, it is also preferable to process the yarn under similar conditions, with the yarn speed being as low as in spindle false twisting. In the case of friction disk false twisting, the number of false twists can be adjusted by selecting the disk configuration of the twisted body, adjusting the ratio of disk circumferential speed to yarn speed (so-called D/Y), and adjusting the stretching ratio. There are many things you can do. Depending on the type and amount of oil applied to the highly oriented undrawn yarn, the crimped state of the finished yarn at a yarn speed of 250 to 700 m/min and a D/Y of 1.5 to 2.3 times. Adjust as appropriate while checking. The twisting tension is 0.15 to 0.5 g/textured yarn fineness dtex, and when using intermediately oriented yarns, it is preferable to set a draw ratio of 1.3 to 1.8 times as appropriate. If the twisting tension and the untwisting tension are approximately equal, a substantially preferable number of false twists can be obtained. The number of false twists is preferably confirmed by grabbing the traveling yarn in the twisting zone, untwisting it with a test twister, and calculating the number of false twists per meter based on the untwisted length. Although the direction of false twisting may be either the S direction or the Z direction, it is preferable that the direction of false twisting of the false twisted yarn and the direction of twisting of the cellulose spun yarn match.

It is preferable that the highly crimped polyester yarn does not contain entanglements such as interlacing. Even if entanglement is included, it is preferable to limit the degree of entanglement to 50 pieces/m or less. If there is no entanglement, the stretch/elongation rate of the highly crimped yarn can be maintained at a high level. In addition, the spun yarn is better covered, and the effect of suppressing protrusion of the cotton yarn to the back side and fuzzing can be obtained.

The highly crimped polyester yarn preferably uses a homopolymer or blend polymer such as polyethylene terephthalate, polybutylene terephthalate, polytetramethylene terephthalate, or a copolymer mainly composed of these. For example, polybutylene terephthalate fiber has a larger molecular chain bend than polyethylene terephthalate fiber, and therefore has excellent elasticity and flexibility. Therefore, false twisted yarn made of polybutylene terephthalate fiber is preferable because it has high crimpability. In addition to polybutylene terephthalate fibers, false twisted yarns made of conjugate fibers of polybutylene terephthalate and polyethylene terephthalate are also preferred. This conjugate fiber has latent crimp due to the presence of polybutylene terephthalate unevenly distributed in the cross section of the fiber, and has crimp characteristics that are as high as or higher than that of false twisted yarn made of a single polybutylene terephthalate fiber. . Here, the conjugate fiber of polybutylene terephthalate and polyethylene terephthalate is a composite fiber having a cross section such as a side-by-side structure using both components or an eccentric core-sheath structure. In this case, the cross-sectional shape may be a known cross-sectional shape such as a round cross-section, a triangular cross-section, or a hollow cross-section. In addition, for the filament crimped yarn, if necessary, matting agents such as titanium oxide, stabilizers such as phosphoric acid, ultraviolet absorbers such as hydroxybenzophenone derivatives, crystallization nucleating agents such as talc, and stimulants such as Aerosil may be added. Antioxidants such as lubricants and hindered phenol derivatives, flame retardants, antistatic agents, pigments, optical brighteners, infrared absorbers, antifoaming agents, etc. may also be contained.

The total fineness of the highly crimped polyester yarn is not particularly limited, but is preferably 15 to 120 dtex. When the fineness of the elastic fiber is within the above range, the effect of preventing cotton yarn from protruding and the effect of increasing stretchability are improved. On the other hand, if it is lower than 15 dtex, it becomes difficult to obtain sufficient stretchability. Moreover, if it is higher than 120 dtex, the cellulose blending rate decreases and wearing comfort tends to decrease. Further, the single fiber fineness of the highly crimped polyester yarn is preferably 0.5 to 3.5 dtex.

When the highly crimped polyester yarn and the spun cellulose yarn are twisted together, the twisting direction is preferably opposite to the false twisting direction of the highly crimped yarn. More preferably, the twisting direction of the cellulose spun yarn and the false-twisting direction of the highly crimped false-twisted yarn are the same, and the yarns are combined and twisted in the opposite direction. False twisted yarn has a crimped form with a fixed false twist in an almost untwisted state, but by twisting it, a twist in the opposite direction to the fixed crimped form of the filament crimped yarn is added. As a result, a crimp repulsion occurs between the single filaments, making it easier for the filaments to cover the spun yarn. This has the effect of making it difficult for the spun yarn to protrude to the back side when the knitted fabric is shrunk during the dyeing process. In addition, stretchability and abrasion resistance can also be improved. The number of twists in the combined twist is preferably 20 to 600 T/m, more preferably 25 to 300 T/m. If the number of twists is less than the above range, there is a concern that the cotton threads may easily protrude into the back cotton. If it is larger than the above range, the binding force of the highly crimped yarn becomes too strong, and the stretchability of the knitted fabric tends to decrease.

The warp knitted fabric for clothing of the present invention uses cellulose fibers in the middle reed for knitting the inserted tissue, making it difficult for the cellulose fibers to be exposed on the surface of the knitted fabric, resulting in a good aesthetic appearance and improved abrasion durability. improves. As for the insertion method, 00/11//, 00/22//, 00/33// and their retrograde tissues are preferred. More preferably, it is preferable to use 00/11//, 11/00//, and their reverse weave, and furthermore, it is preferable that the thread used for the middle reed be made in a reverse direction with respect to the thread used for the front reed. . By doing this, it is possible to suppress the cotton thread from protruding to the back side. Further, the threads used for the middle reed may be arranged as a full set on the middle reed, but since the aim is to make the thread thin and lightweight, it is easier to keep it within the area weight range defined by the present invention by using 1 in 1 out, 1 in 2 out, etc.

Since the warp knitted fabric of the present invention contains cellulose fibers with a high moisture content, it has excellent antistatic properties, but antistatic yarn may be used to further enhance the antistatic properties. When antistatic yarn is used, it is preferable to twist the antistatic yarn to the yarn used for the middle reed. In the present invention, a composite yarn in which a spun yarn containing cellulose fibers and a polyester highly crimped yarn are combined and twisted is used for the middle reed. In terms of cost, it is preferable to twist the antistatic yarn at the same time as the spun yarn and the highly crimped polyester yarn. Further, in order to impart sufficient antistatic performance to the warp knitted fabric of the present invention, it is preferable that one or more yarns containing antistatic yarns are arranged in the wale direction. The antistatic yarn is preferably one in which conductive fine particles are kneaded into the fiber, but specifically, the antistatic yarn is one in which a conductive substance is kneaded into fiber-forming resin such as polyester resin or polyamide resin. The conductive fibers may be either conductive fibers (single-component type) formed of (conductive resin) or conductive fibers (composite-component type) formed of conductive resin and non-conductive resin. Examples of the conductive substance include conductive carbon black; simple metals such as silver, nickel, copper, iron, and tin; and metal compounds such as copper sulfide, zinc sulfide, and copper iodide. In order to have excellent antistatic performance at the initial stage and after washing, the electrical resistance value of the conductive thread is preferably 100 to 1000 Ω/cm. As an example of the conductive thread, for example, "Kura Carbo" manufactured by Kuraray Trading Co., Ltd., "Beltron" manufactured by KB Seiren, "Luana" manufactured by Toray Industries, Ltd., "Emina White" manufactured by Toyobo, etc. can be used.

Next, yarns made of polyester fibers used for the front reed and back reed constituting the warp knitted fabric for clothing of the present invention will be explained. As the thread made of polyester fiber, thread made of polyester fiber such as polyethylene terephthalate fiber, polybutylene terephthalate fiber, polytrimethylene terephthalate fiber, polylactic acid fiber, etc. can be used. The form of the yarn may be filament yarn or spun yarn, but filament yarn is preferred. By using filament yarn, the flexibility and shape stability of the knitted fabric can be further improved. As the filament yarn, a processed yarn such as a flat yarn (raw silk), a false twisted yarn, or an air-entangled yarn can be used. False-twisted yarn is preferred from the viewpoint of abrasion resistance, appropriate stretchability, and washing durability. This false twisted yarn may be the same highly crimped yarn as the yarn used for the middle reed, but it may also be a false twisted yarn with a normal stretch/elongation rate. The stretch/elongation rate of this false twisted yarn is preferably 5% to 40%, more preferably 8% to 30%. If the stretch/elongation ratio is less than the lower limit of the above range, the effect of covering the stitches by the false twisted yarn will be difficult to exhibit and it will be difficult to obtain anti-see-through properties; if it exceeds the upper limit, it will not only be difficult to prevent cellulose fibers from protruding, but also The entire fabric tends to shrink significantly during the dyeing process and become heavy. The stretch/elongation rate can be measured based on JIS-L1013:2010 8.11 Elasticity A method. Examples of false-twisting methods include spindle false-twisting, friction disk false-twisting, and belt false-twisting.

The fineness of the false twisted yarn is preferably 30 to 180 dtex, more preferably 50 to 110 dtex. Yarns having different finenesses within the above range may be mixed and knitted. If the fiber fineness of the yarn used is thinner than the above-mentioned range, the knitted fabric tends to be more transparent. If it is thicker than the above range, the knitted fabric will tend to be thick. In particular, a false twisted yarn having a single fiber fineness of 0.8 to 3.5 dtex and a total fineness of 30 to 110 dtex is preferable.

White metal oxides such as titanium oxide are added to the polyester fibers used for the front and back reeds to prevent them from being see-through. The amount added is in the range of 0.8 to 3.5% by mass. It is preferably 1.0 to 3.0% by weight, more preferably 1.3 to 2.8% by weight. If white or light colors are often used, such as white coats, office blouses, dress shirts, gym clothes, etc., if the amount added is less than the above range, the transparency will tend to become strong, and if it exceeds the above range, the spinning property will be affected. The quality of the yarn becomes extremely poor, and the quality of the yarn, such as fluff, tends to deteriorate. In addition, for polyester fibers, if necessary, matting agents, stabilizers such as phosphoric acid, ultraviolet absorbers such as hydroxybenzophenone derivatives, crystallization nucleating agents such as talc, lubricants such as Aerosil, hindered phenol derivatives, etc. In addition, flame retardants, antistatic agents, pigments, optical brighteners, infrared absorbers, antifoaming agents, etc. may be contained.

Further, the warp knitted fabric for clothing of the present invention needs to have a basis weight of 90 to 230 g/m ² . Preferably it is 100 to 200 g/m ² , more preferably 100 to 180 g/m ² . If the fabric weight is less than the above range, it tends to be too transparent and difficult to use as white coats or office shirts. If it exceeds the above range, it becomes too heavy and comfort tends to decrease. Further, the warp knitted fabric for clothing of the present invention preferably has a thickness of 0.3 to 1.2 mm, more preferably 0.5 to 1.0 mm. If the thickness exceeds the above range, it becomes thick and unsuitable for uses such as uniform shirts and white coats. If it is less than the above range, it becomes difficult to obtain anti-see-through properties.

Next, the warp knitted fabric for clothing of the present invention having the above-mentioned configuration and characteristic values is preferably configured as a warp knitted fabric as described below, for example. The warp knitted fabric for clothing of the present invention is knitted using a warp knitting machine such as a tricot machine. The needle density in the machine is preferably 22 to 32 gauge/inch, more preferably 28 to 32 gauge/inch. If the needle density does not satisfy the above range, the transparency will be high or the thickness will be too high, making it difficult to provide for thin uniforms.

The warp knitted fabric for clothing of the present invention is knitted with at least three reeds: a front reed, a middle reed, and a back reed. It is preferable that the front reed and the back reed have a one-stitch or two-stitch structure. In view of the strength and durability of the knitted fabric, it is preferable to use knit loops mainly with closed stitches. Particularly preferably all knit loops are closed. For example, it is preferable that either the front reed or the back reed be made of closed-end denby cord, and the other be made of closed-end plain cord. Further, it is preferable that the underlapping directions of the front reed and the back reed be opposite to each other. By turning it in the opposite direction, the knit loops on the surface face in the wale direction, making the loop shape uniform and stable, resulting in a clean surface and suppressing the fuzz of the spun yarn from rising to the surface. It also reduces transparency and improves durability against abrasion.

In the present invention, the middle reed is for combining an inserted structure as an intermediate layer with the warp knitted fabrics of the front reed and back reed as described above, for example. Intercalated tissue is tissue that does not have loops. Since there are no loops, the cellulose fibers do not appear on the surface and the front cloth surface looks clean. It is preferable that the middle reed has a one-stitch or two-stitch insertion structure.

FIG. 1 shows an example of a knitting organization chart showing one embodiment of the knitting organization of the back reed, front reed, and middle reed of the warp knitted fabric of the present invention. In FIG. 1, the front reed shows a 1-2/1-0// knit structure. The middle reed shows a structure woven with 0-0/1-1//. The back reed shows a 1-0/2-3 texture. Although not shown in the figure, the yarn arrangement in the middle reed is 1 in 1 out.

That is, in FIG. 1, the middle reed knits an insertion weave, and the front reed and back reed knit a knit weave. The inserted structure formed by the middle reed is a loop structure in which the yarn used for the front reed and the yarn used for the back reed are overlapped together in knit loops, and the yarn used for the front reed and the yarn used for the back reed are overlapped together in knit loops. The structure is maintained by knitting so that the yarn used for the middle reed is sandwiched between the yarn used for the middle reed. In this way, in all the knit loops that make up the knitted fabric, the yarn used for the front reed and the yarn used for the back reed overlap to form a loop, so that the yarn used for the front reed and the yarn used for the back reed can be combined. Since the yarns firmly sandwich the yarn used for the middle reed, the elasticity of the yarn used for the middle reed greatly contributes to the elasticity of the knitted fabric.

When obtaining the warp knitted fabric for clothing of the present invention, the gray fabric knitted with the above structure is scoured and dried to remove excess oil and impurities, and then preset at 170 to 190°C. , it is preferable to stabilize the shape. Furthermore, depending on the intended use, the fabric is fluorescently bleached or dyed using a conventional polyester dyeing method, and the knitted fabric is dyed at a high temperature while being made of soft fabric, thereby causing the knitted fabric to shrink and develop elasticity. Thereafter, in the finishing/final set, it is preferable to perform finishing under conditions that the course and wale density after finishing do not decrease by 3% or more from the wale density after dyeing. In the warp knitted fabric produced as described above, the stretch rate of the highly crimped yarn among the middle yarns is preferably 20 to 80%. If the stretch rate of the highly crimped yarn is within this range, the stretch rate of the knitted fabric in the weft direction (JIS-L1096 stretch rate B method (load 14.7N)) can be 25 to 65%. can.

The warp knitted fabric of the present invention has a moisture content of 1.0 to 7.0% in an environment of 20°C and 85% RH, and is hygroscopic, so the inside of the garment tends to become highly humid due to insensible evaporation. Even when working with a high level of activity, the humidity within the clothes can be adjusted to bring it closer to a comfortable range. If the moisture content is less than 1.0%, hygroscopicity is low and the humidity control function within the garment tends to deteriorate; if it exceeds 7.0%, fuzz may appear on the surface or the appearance of the dyed material may flicker. It becomes easier to do.

Although the warp knitted fabric of the present invention uses spun yarns of cellulose fibers with low extensibility, it has appropriate stretchability without causing protrusion of the spun cellulose yarns or appearance of cellulose fuzz on the surface. Specifically, the extensibility in the weft direction of the warp knitted fabric of the present invention is 25 to 65%, preferably 30% to 65%, more preferably 35%, as measured by JIS-L1096B method (load 14.7N). % to 65% can be achieved. In addition, it is preferable that the extensibility in the warp direction is smaller than that in the weft direction, and it becomes easier to tailor the extensibility if it is about half that in the weft direction. When the elongation rate exceeds the above range, the cellulose spun yarn tends to protrude from the back surface, and the cellulose fluff tends to come out from the surface.

The warp knitted fabric of the present invention has almost no cellulose fibers on its surface and has the beautiful appearance of polyester long fibers, so it can be used for clothing such as blouses, dress shirts, uniform shirts, white coats, uniform pants, and uniform jackets. Suitable for products. In addition, since the fuzz of short cellulose fibers does not appear on the surface of the fabric, it can be suitably used in applications where dust is averse, such as in clean rooms and uniforms in the food industry.

Although the warp knitted fabric of the present invention contains cellulose fibers, it does not easily wrinkle when washed, and has wash and wear properties (W&W properties) of 3.0 even after tumble drying after washing 10 times according to the JIS-L1096-C4M method. It is possible to achieve a grade of 1.5 or higher, preferably 3.5 or higher, more preferably 4.0 or higher. This is thought to be because the cellulose fibers do not form knitted loops in the knitted structure, so that wrinkle fixation of the cellulose fibers is less likely to appear in the knitted fabric.

The warp knitted fabric of the present invention can achieve a backside frictional charging voltage of 2500 V or less, preferably 2000 V or less after 10 washes using the JIS-L1096-C4M method, as measured by the JIS-L1094:2014 7.2B method. can. As a result, when the warp knitted fabric of the present invention is used as a garment, the generation of static electricity during wear is suppressed and the garment can be comfortably worn.

The warp knitted fabric of the present invention has optimized content of white metal oxide in the polyester fiber used for the front reed and back reed, and the basis weight of the knitted fabric. 85 to 98%, preferably 87 to 98%.

Next, the present invention will be specifically explained using Examples and Comparative Examples, but the present invention is not limited to these Examples. Changes in these embodiments are included within the technical scope of the present invention as long as they do not depart from the spirit of the present invention. Note that the method for measuring characteristic values used in the present invention is as follows.

<Stretching and elongation rate>
Measured by JIS-L1013:2010 8.11 Elasticity A method. As a pretreatment at that time, a sample was used that had been treated in hot water at 90°C for 20 minutes.

<Stretch recovery rate>
Measured according to the method of JIS-L1013:2010 8.12. As a pretreatment at that time, a sample was used that had been treated in hot water at 90°C for 20 minutes.

<Stretching/elongation rate of highly crimped yarn in knitted fabric>
The warp knitted fabric was carefully disassembled along the wales, 50 cm of the twisted yarns were extracted, the twists were untwisted, and 10 highly crimped yarns were extracted. This was measured using JIS-L1013:2010 8.11 Elasticity A method. The arithmetic mean value of the 10 measured values was taken as the expansion/contraction elongation rate of the highly crimped yarn in the knitted fabric.

<Effective fiber length of cotton fiber>
The fiber length was measured according to method A (double sorter method) of JIS-L-1019:2006 7.2.1.

<Total fineness>
The apparent cotton count (English type count) was measured by the method of JIS-L1095:2010 9.4.2.

<Twist coefficient>
The number of twists was measured according to JIS-L1095:2010 9.15.1 A method, and the twist coefficient (K) was determined by applying it to the following formula.
Twist coefficient (K) = Number of twists per inch (T) / √ Count ('s)

<Degree of confounding>
Measured according to JIS-L1013:2010 8.15.

<Thickness of knitted fabric>
Measured according to the test method of JIS-L 1096:2010 8.4 A method.

<Weight of knitted fabric>
Measured according to the test method of JIS-L 1096:2010 8.3.

<Extension rate>
JIS-L 1096:2010 8.16.1 The elongation rate in the weft direction of the knitted fabric and woven fabric was measured by method B (constant load method). However, the load was 14.7N.

<Moisture percentage>
The moisture content of the knitted fabric or woven fabric was measured according to JIS-L 1096:2010 8.10. However, the environmental conditions at the time of moisture content measurement were 20° C. and 85% RH.

<stuffy feeling>
Uniform shirts using the knitted fabrics or fabrics of Examples and Comparative Examples for the front and back bodies were manufactured and worn by men in their 20s, and were worn at 800 m/min in an indoor environment of 30°C and 85% RH. Immediately after walking at a fast speed for 20 minutes, the feeling of stuffiness in the clothes was evaluated. If you feel stuffy, mark it as ×, if you only feel a little stuffy, mark it as △, and if you don't feel stuffy and feel comfortable, mark it as ○.

<Frictional voltage>
The knitted fabric or woven fabric was washed 10 times using the JIS-L1096-C4M method and dried, and then measured using the JIS-L1094:2014 7.2B method (frictional charging voltage measurement method). However, the friction surface is a technical back (front reed side).

<Anti-transparency>
Evaluated using JIS-L1923:2017 B method (instrument method).

<Surface appearance>
If 20 or more cellulose fluffs are visible on the fabric surface in any 2.54cm x 2.54cm area in the center of the knitted or woven fabric after 10 washes according to the JIS-L1096-C4M method, it is marked as ×, and one or more fluffs are visible on the fabric surface. If fuzz was observed, it was rated △, and if no fuzz was observed, it was rated ○.

<Shape retention>
After washing 10 times, tumble drying was performed according to the JIS-L1096-C4M method, and the appearance smoothness of the knitted fabric or woven fabric after washing was evaluated. Grades 1 to 5 were determined using a replica of AATCC TM124. Three test samples were graded and the average value was used.

<Back side protrusion>
On the back side (sinker loop side) of the finished knitted fabric, check whether the yarn used for the middle reed protrudes in a loop shape on the back side within an arbitrary 2.54 cm x 2.54 cm area, and if it does. investigated its protruding condition. ◎ if it does not protrude at all, ○ if it slightly floats to the back but does not protrude, △ if it protrudes to the back but the protruding part does not feel uncomfortable on the skin, △, it protrudes to the back and the skin If there was a feeling corresponding to the above, it was evaluated as ×, and the evaluation was made in four stages: ◎〇△×. ◎ and 〇 were considered passed.

(Manufacture of polyester highly crimped yarns a, b, c, d)
Production of polyester highly crimped yarn a
A polyethylene terephthalate polymer (intrinsic viscosity 0.63 m ³ /kg) containing 0.5% by weight of titanium oxide (white metal oxide) is melted at 295°C, and polyester fibers are produced from a spinneret device (36 holes) with a round cross section. was melt-extruded, cooled and solidified, applied with a spinning oil and wound up to obtain a highly oriented undrawn yarn of 90 decitex and 36 filaments. Then, using a low-speed friction disk friction false twisting machine, the number of disks was set to 1-7-1 using 5 mm thick urethane disks, and the highly oriented undrawn yarn was stretched at a draw ratio of 1.58 and a yarn speed of 300 m. /min, D/Y ratio = 1.8, heater surface temperature 200℃, twisting direction Z, and winding without air entanglement, 56 dtex 36 filament highly crimped yarn. I got a. The stretch and elongation rate of this highly crimped yarn a was 62.8%, and the stretch and recovery rate was 51.3%. This highly crimped yarn a had a false twist number of 4150 T/m as measured on the machine, and was found to have no problem in handling.

Preparation of polyester highly crimped yarn b A drawn yarn of polyethylene terephthalate long fibers of 84 decitex and 36 filaments with a round cross section and a titanium oxide (white metal oxide) content of 0.5% by weight was prepared. Then, using a spindle false twister (manufactured by Mitsubishi Heavy Industries), the finished yarn was fed from the feed roller and false twisted at a processing speed of 100 m/min, a heater temperature of 200°C, a twisting direction Z, and a number of false twists of 3900. After that, the yarn was wound up without interlacing to obtain highly crimped yarn b. The stretch/elongation rate of this highly crimped yarn b was 46.9%, and the stretch/recovery rate was 38.5%.

Production of polyester highly crimped yarn c A drawn yarn (elongation 30.5%) of side-by-side type composite fiber 56 dtex 36 filament of polybutylene terephthalate and polyethylene terephthalate (weight ratio 50/50) was prepared. The finished yarn was fed from a feed roller using a spindle false twister (LS6 manufactured by Mitsubishi Heavy Industries), and the drawn yarn was twisted in the twisting direction at a processing speed of 100 m/min, a heater temperature of 190°C, and a number of false twists of 3800. False twisting was performed at Z, and then winding was performed without interlacing to obtain highly crimped yarn c. The stretch/elongation rate of this highly crimped yarn c was 65.4%, and the stretch/recovery rate was 49.1%.

Production of polyester highly crimped yarn d A polyethylene terephthalate polymer (intrinsic viscosity 0.63 m ³ /kg) containing 0.5% by weight of titanium oxide (white metal oxide) was melted at 295°C, and a spinneret with a round cross section was used. Polyester fibers were melt-extruded from a device (36 holes), cooled and solidified, applied with a spinning oil and wound up to obtain a highly oriented undrawn yarn of 90 decitex and 36 filaments. Then, using a low-speed friction disk friction false twisting machine, the number of disks was set to 1-7-1 using 5 mm thick urethane disks, and the highly oriented undrawn yarn was stretched at a draw ratio of 1.58 and a yarn speed of 300 m. /min, D/Y ratio = 1.8, heater surface temperature 200℃, and twisting direction Z. False twisting is performed under the following conditions, air entanglement treatment is performed, and winding is performed to create a highly crimped yarn of 56 decitex and 36 filaments. I got d. The stretch/elongation rate of this highly crimped yarn d was 33.9%, and the stretch/recovery rate was 38.5%. Further, the number of interlaces (degree of entanglement) of this highly crimped yarn d was 55 pieces/m, and the number of false twists was 4150 T/m as measured on the machine.

(Manufacture of cellulose spun yarns a, b, c, d)
Production of cellulose spun yarn a
A mixture of American Supima cotton and GIZA92 cotton at a weight ratio of 50:50 was mixed and batted using a cotton blending machine manufactured by OHARA, and then a card sliver was made using a carding machine manufactured by Ishikawa Seisakusho. After being passed through a combing machine, it was passed twice through a loom smelting machine to obtain a sliver of 210 gel/6 yards. Furthermore, it was passed through a roving machine manufactured by Toyota Industries Corporation to create a roving yarn of 80 gelens/15 yards. Next, this roving was subjected to a draft of approximately 40 times using a ring spinning machine, and spun yarn a of 100% cotton with a 60th English cotton count (60/1) (twist coefficient 3.5, Z twist, effective fiber length) 38 mm) was produced.

Production of cellulose spun yarn b A roving of 50 gelen/15 yd was created after leaving the roving frame, and a roving of 80/1 (twist coefficient 3.8, Z twist, effective fiber length 38 mm).

Production of cellulose spun yarn c Ring spinning was carried out in the same manner as spun yarn a, except that "Modal (registered trademark)" manufactured by Lenzing, 1.0 dtex, cut length 39 mm) was used instead of Supima cotton and GIZA92 cotton. A 60/1 100% rayon spun yarn c (twist coefficient 3.5, Z twist) was prepared.

Production of cellulose spun yarn d A combed sliver was prepared in the same manner as spun yarn a except that Australian cotton was used instead of Supima cotton and GIZA92 cotton, and passed through a drawing machine twice to form a 300 gel/6 yd sliver. did. Furthermore, a roving of 125 gelens/15 yards was produced after leaving the roving frame, and a spun yarn d with an English style count of 40/1 was produced by spinning with a draft of 40 times (twist coefficient 3.5, Z twist, effective fiber length 29 mm). ).

(Manufacture of twisted yarns A, B, C, D, E, F)
Manufacturing of twisted yarn A
The cellulose spun yarn a and the highly crimped yarn a were placed in a twisting machine and twisted at 100 T/m using an S twist to produce a twisted yarn A.

Production of twisted yarn B Using highly crimped yarn b instead of highly crimped yarn a, the cellulose spun yarn a and S twist were combined and twisted at 30 T/m to produce twisted yarn B.

Production of Twisted Yarn C Cellulose spun yarn B was used in place of cellulose spun yarn a, and combined with highly crimped yarn a, the yarn was twisted at S twist at 30 T/m to produce Twisted Yarn C.

Production of Twisted Yarn D Cellulose spun yarn C and highly crimped yarn C were placed in a twisting machine and twisted at 100 T/m using S twist to produce Twisted Yarn D.

Production of twisted yarn E Using highly crimped yarn d instead of highly crimped yarn a, the cellulose spun yarn a and S twist were combined and twisted at 100 T/m to produce twisted yarn E.

Production of twisted yarn F When producing twisted yarn A, in addition to cellulose spun yarn a and highly crimped yarn a, three antistatic yarns (Beltron 22T6-B31 manufactured by Kuraray) were S-twisted at 100 T/m. A twisted yarn F was produced by twisting the yarn.

(Example 1)
Using three reeds on a 28-gauge tricot knitting machine (KE model manufactured by Karl Mayer), knitting was performed using the knitting structure shown in Figure 2 using the following threads to obtain a warp knitted fabric. Ta.
Front reed: Commercially available full dull false twisted yarn (friction disk 2 heater, titanium oxide (white metal oxide) 1.5% by weight content, round cross section, 84 dtex, 72 filaments, stretch rate 10.1%, stretch recovery rate 28.5%) Organization: 1-2/1-0//
Middle reed: Twisted yarn A Organization: 0-0/1-1//(1in1out)
Back reed: Commercially available full dull false twisted yarn (friction disk 2 heater, titanium oxide (white metal oxide) 1.5% by weight content, round cross section, 56 dtex, 36 filaments, stretch rate 11.1%, stretch recovery rate 29.5%) Organization: 1-0/2-3//

Next, the obtained warp-knitted gray material is passed through a pre-wetter as a normal tricot dyeing process, then scoured and dried to remove excess oil and impurities, and pre-printed at 180°C across the width in a tenter. I did a set. Furthermore, using a high-pressure dyeing machine (Circular NS manufactured by Hisaka Dyeing Machinery Co., Ltd.), high-pressure dyeing was performed at 130°C with fluorescent dye Hakkol STR (manufactured by Showa Kagaku Kogyo Co., Ltd.) (1% owf), followed by dehydration and spreading to make it soft. A final setting was performed at 170° C. using a tenter to finish the film. The density of the finished warp knitted fabric was 39 wales/inch and 62 courses/inch. Table 1 shows the details of the knitted fabric structure of the warp knitted fabric of Example 1 and the evaluation results of the physical properties of the knitted fabric.

<Example 2>
A warp knitted fabric was obtained in the same manner as in Example 1 except that the yarn usage was changed as follows. The density of the finished warp knitted fabric was 37 wales/inch and 61 courses/inch. Table 1 shows the details of the knitted fabric structure of the warp knitted fabric of Example 2 and the evaluation results of the physical properties of the knitted fabric.
Front reed: Commercially available full dull false twisted yarn (friction disk 2 heater, titanium oxide (white metal oxide) 1.5% by weight content, round cross section, 84 dtex, 72 filaments, stretch rate 10.1%, stretch recovery rate 28.5%) Organization: 1-2/1-0//
Middle reed: Twisted yarn B Organization: 0-0/1-1//(1in1out)
Back reed: Commercially available full dull false twisted yarn (friction disk 2 heater, titanium oxide (white metal oxide) 1.5% by weight content, round cross section, 84 dtex, 72 filaments, stretch rate 10.1%, stretch recovery rate 28.5%) Organization: 1-0/2-3//

<Example 3>
A white warp knitted fabric was obtained in the same manner as in Example 1 except that the yarn usage was changed as follows. The density of the finished warp knitted fabric was 36 wales/inch and 60 courses/inch. Table 1 shows the details of the knitted fabric structure of the warp knitted fabric of Example 3 and the evaluation results of the physical properties of the knitted fabric.
Front reed: Commercially available full dull false twisted yarn (friction disk 2 heater, titanium oxide (white metal oxide) 1.5% by weight content, round cross section, 56 dtex, 36 filaments, elasticity elongation rate 11.1%, elasticity recovery rate 29.5%) Organization: 1-2/1-0//
Middle reed: Twisted yarn C Organization: 0-0/1-1//(1in1out)
Back reed: Commercially available full dull false twisted yarn (friction disk 2 heater, titanium oxide (white metal oxide) 1.5% by weight content, round cross section, 56 dtex, 36 filaments, stretch rate 11.1%, stretch recovery rate 29.5%) Organization: 1-0/2-3//

<Example 4>
A warp knitted fabric was obtained in the same manner as in Example 1 except that the yarn usage was changed as follows. The density of the finished warp knitted fabric was 42/inch in wales and 62/inch in courses. Table 1 shows the details of the knitted fabric structure of the warp knitted fabric of Example 4 and the evaluation results of the physical properties of the knitted fabric.
Front reed: Commercially available full dull false twisted yarn (friction disk 2 heater, titanium oxide (white metal oxide) 1.5% by weight content, round cross section, 56 dtex, 36 filaments, elasticity elongation rate 11.1%, elasticity recovery rate 29.5%) Organization: 1-0/2-3//
Middle reed: Twisted yarn A Organization: 0-0/1-1//(1in1out)
Back reed: Commercially available full dull false twisted yarn (friction disk 2 heater, titanium oxide (white metal oxide) 1.5% by weight content, round cross section, 56 dtex, 36 filaments, stretch rate 11.1%, stretch recovery rate 29.5%) Organization: 1-2/1-0//

<Example 5>
A warp knitted fabric was obtained in the same manner as in Example 1, except that the middle reed was changed from plied yarn A to plied yarn D. The density of the finished warp knitted fabric was 41/inch in wales and 61/inch in courses. Table 1 shows the details of the knitted fabric structure of the warp knitted fabric of Example 5 and the evaluation results of the physical properties of the knitted fabric.

<Example 6>
A warp knitted fabric was obtained in the same manner as in Example 1 except that the middle reed was changed from plied twisted yarn A to plied twisted yarn E. The density of the finished warp knitted fabric was 36 wales/inch and 60 courses/inch. Table 1 shows the details of the knitted fabric structure of the warp knitted fabric of Example 6 and the evaluation results of the physical properties of the knitted fabric.

<Example 7>
A warp knitted fabric was obtained in the same manner as in Example 1, except that the yarn used for the middle reed was changed as follows. The density of the finished warp knitted fabric was 39 wales/inch and 62 courses/inch. Table 1 shows the details of the knitted fabric structure of the warp knitted fabric of Example 7 and the evaluation results of the physical properties of the knitted fabric.
Middle reed: Thread usage: Twisted yarn A: Twisted yarn F = 11:1 Structure: 0-0/1-1// (1 in 1 out)

(Comparative example 1)
A warp knitted fabric was obtained in the same manner as in Example 2, except that the middle reed was changed from the plied twisted yarn a to the cellulose spun yarn d. The density of the finished warp knitted fabric was 29 wales/inch and 58 courses/inch. Table 1 shows the details of the knitted fabric structure of the warp knitted fabric of Comparative Example 1 and the evaluation results of the physical properties of the knitted fabric.

(Comparative example 2)
The middle reed was made from the twisted yarn a and the same commercially available full dull false twisted yarn as the front reed and back reed (friction disk 2 heater, titanium oxide (white metal oxide) content of 1.5% by weight, round cross section, 84 dtex, 72 filament, A warp knitted fabric was obtained in the same manner as in Example 2, except that the elasticity elongation rate was changed to 10.1% and the elasticity recovery rate was changed to 28.5%. The density of the finished warp knitted fabric was 31 wales/inch and 60 courses/inch. Table 1 shows the details of the knitted fabric structure of the warp knitted fabric of Comparative Example 2 and the evaluation results of the physical properties of the knitted fabric.

(Comparative example 3)
Commercially available full dull false twisted yarn (friction disk 2 heater, titanium oxide (white metal oxide) 1.5% by weight content, round cross section, 84 dtex, 72 filaments, elastic elongation rate 10.1%, elastic recovery rate 28 A plain weave with a warp density of 100 threads/2.54 cm and a weft density of 68 threads/2.54 cm was woven using a water jet loom manufactured by Tsudakoma Kogyo Co., Ltd. using a spliced yarn B as the weft. The scouring process is carried out using a continuous scouring machine in the usual manner, and after the cylinder is dried, it is preset to the width using a tenter (190℃ x 30 seconds), and then a high pressure dyeing machine (Circular NS manufactured by Hisaka Dyeing Machinery) is used. After high-pressure dyeing at 130°C with a disperse dye (DIANIX Blue UN-SE 3% owf), it was dehydrated and spread, a softener was applied, and a final set was performed at 170°C in a tenter to finish. The finished density was 123 warps/2.54 cm and 74 wefts/2.54 cm. Table 1 shows the details of the fabric structure of the fabric of Comparative Example 3 and the evaluation results of the fabric properties.

As can be seen from Table 1, Examples 1 to 7 that meet the requirements of the present invention all have excellent hygroscopicity (stuffy feeling), stretchability (lateral elongation rate), shape retention (W&W properties), and appearance quality ( Excellent surface appearance and back protrusion). Further, from Example 6, it can be seen that when the degree of entanglement of the highly crimped polyester yarn is high, the stretch/elongation rate of the highly crimped polyester yarn decreases. In addition, from Example 7, it can be seen that when the middle reed is used in combination with antistatic yarn (combined twisted yarn F), the antistatic property (frictional charging voltage) is improved.

On the other hand, in Comparative Example 1, the yarn used for the middle reed is made only of cellulose fibers and does not contain polyester highly crimped yarn, so it has good stretchability (weft direction elongation rate), shape retention (W & W property). ), and the appearance quality (surface appearance, back protrusion) is poor. In Comparative Example 2, the yarn used for the middle reed is made of the same polyester fiber as the front reed and the back reed, so it is inferior in hygroscopicity (stuffy feeling) and stretchability (weft direction elongation rate). Since Comparative Example 3 is a woven fabric rather than a knitted fabric, it is inferior in stretchability (weft direction elongation rate), shape retention (W&W properties), and appearance quality (surface appearance).

The warp knitted fabric for clothing of the present invention has stretch properties and moisture absorption properties, and is comfortable to wear, while also having a beautiful appearance and excellent shape retention properties that are resistant to washing. Useful for frequently used clothing.

Claims (7)

A warp knitted fabric for clothing knitted with three or more reeds including a front reed, a middle reed, and a back reed, comprising yarn made of polyester fiber containing 0.8 to 3.5% by mass of white metal oxide. Used for the front reed and back reed, and the middle reed is made of a spun yarn containing cellulose fibers and a polyester highly crimped yarn with a stretch rate of 20% to 80% after hot water treatment at 90°C. A warp-knitted fabric for clothing, characterized in that the reed has an inserted structure and satisfies all of the following conditions (i) to (iv):
(i) The basis weight is 90 to 230 g/m ² ,
(ii) In an environment of 20°C and 85% RH, the moisture content of the knitted fabric according to JIS-L1096:2010 8.10 is 1.0 to 7.0%;
(iii) The elongation rate in the latitudinal direction measured by JIS-L1096 elongation rate B method (load 14.7N) is 25 to 65%,
(iv) The anti-see-through property according to JIS-L1923:2017B method is 85 to 98%. A spun yarn containing cotton with an English cotton count of 40 to 120 and the above-mentioned highly crimped polyester yarn having no interlace entanglement and a total fineness of 33 to 90 decitex were combined and twisted at a twist rate of 10 to 300 T/m. The warp knitted fabric for clothing according to claim 1, wherein the yarn is used for the middle reed. Warp knitting for clothing according to claim 1 or 2, wherein the front reed and the back reed have a one-stitch or two-stitch structure, and the underlapping directions of the front reed and the back reed are opposite. Earth. The warp knitted fabric for clothing according to any one of claims 1 to 3, wherein the middle reed has a one-needle or two-needle insertion structure. The warp knitted fabric for clothing according to any one of claims 1 to 4, which has wash and wear properties of grade 3.0 or higher after 10 washes and tumble drying according to the JIS-L1096-C4M method. According to any one of claims 1 to 5, the frictional charging voltage on the back surface measured by the JIS-L1094:2014 7.2B method is 0 to 2500 V after 10 washes by the JIS-L1096-C4M method. warp knitted fabric for clothing. A clothing item made of the warp knitted fabric for clothing according to any one of claims 1 to 6, characterized in that it is selected from a blouse, a dress shirt, a uniform shirt, a white coat, uniform pants, or a uniform jacket. and clothing.

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