JP6979106B2 - Knitted fabric for business shirts and business shirts - Google Patents

Description

The present invention relates to a knitted fabric for a business shirt, which has excellent stretchability, breathability, anti-shedding, and antistatic properties while having elasticity and elasticity.

Shirts worn mainly in the workplace such as offices and factory sites, such as conventional shirts, dress shirts, office shirts, uniform shirts, casual shirts with collars, blouses, etc., have threads arranged straight in the warp direction. A woven fabric in which wefts are woven at right angles to the warp is used. The reason for this is that the woven fabric has a fine texture, is firm, and has a strong elasticity, so that it has an excellent silhouette. However, since the warp and weft are tightly crossed and strongly restrained from each other, the air permeability is poor, and the inferior flexibility and elasticity are factors that hinder the comfort when worn. For example, during commuting in the summer, when working outside the office, or when performing movements that involve hard movements, sweat that has sweated is not easily dissipated to the outside, making it easy to get stuffy or sticky, and because it is inflexible. There is a problem that the woven fabric tends to stick to the skin and the comfort is easily deteriorated.

In order to solve such a problem, the applicant has attempted to make a fabric for a business shirt with a knitted fabric, which is a knitted fabric of a spun yarn and a filament, and is bent in the vertical and horizontal directions. We propose a knitted fabric for business shirts with rigidity (B / M) of 1.7 × 10 ^-4 or more, elongation (EMT) of 10% or more, and bendability (2HB) of 0.060 gf · cm / cm or less. (See Patent Document 1). This method can provide a knitted fabric for business shirts that has moderate elasticity, quick-drying water absorption, and excellent skin release, but crosses a filament with no fluff and a spun yarn with a lot of surface fluff. It was necessary to knit, and due to the heavy use of tack, it was easy for the surface of the knitted fabric to have an uneven texture.

The present inventors continued to study diligently to overcome such a problem ^{, and consisted of a single circular knitted fabric having a grain size of 80 to 180 g / m 2} and a course density of 40 to 100 pieces / 2.54 cm. The circular knitted fabric has a horizontal border pattern, the welt tenjiku structure using threads with a fineness of 50 to 180 dtex constitutes 50% or more of the total area, the elongation rate (EMT) in the vertical direction is 15 to 40%, and the horizontal is horizontal. We have proposed a knitted fabric for business shirts characterized by an elongation rate (EMT) in the direction of 10 to 25% (Patent Document 2). Although this knitted fabric is a knitted fabric, it does not stretch too much, and it has moderate elongation, softness, breathability, and morphological stability as a business shirt, and was very popular. Business shirts have been sought after.

On the other hand, clothing made of polyester fibers is prone to static electricity, and it is unpleasant if the static electricity is instantly discharged when wearing or touching an object, and it is preferable for health that the human body is charged while wearing. There is no. In addition, shirts worn at gas stations and workplaces where organic solvents are used are required to be explosion-proof so that static electricity does not easily accumulate. For example, as an example of school uniforms made of circular knitted fabric, circular knitting featuring advanced anti-snag performance knitted using twisted polyester filaments for the purpose of being comfortable to wear and having excellent durability. A double knit has been proposed, in which it is stated that antistatic yarn is used to improve dust adhesion and antistatic properties. However, school uniforms are mainly black or dark blue, and because they use antistatic threads that are colored inside the double knit, the antistatic threads that are originally colored black are not noticeable, but with thin fabrics such as shirts. There was a problem that the aesthetics deteriorated because the colored antistatic yarn was conspicuous.

Japanese Unexamined Patent Publication No. 2001-303403 Japanese Patent No. 5994036

The present invention has been made in view of the above-mentioned problems of the prior art, and is a knitted fabric for a business shirt having the elasticity, softness, breathability, and shape retention required for a business shirt, and a knitted fabric thereof. It is to provide the used business shirt. Another object of the present invention is to provide a material in which the antistatic yarn is inconspicuous while knitting the antistatic yarn in the knitted fabric so as not to generate static electricity.

As a result of diligent studies on a knitted fabric for a thin business shirt to achieve the above object, the present inventors have contained 25% by weight or more of polyester fiber yarn containing 0.6 to 5.0% by weight of white metal oxide. In addition, the knitted fabric mixed with polyester filament with a thick single yarn fineness does not affect the appearance of the surface of the thick fine yarn, and while maintaining the flexibility of the knitted fabric, it has high shape retention and moderate elasticity. We have found that we can provide knitted fabrics for business shirts with elasticity. It was also found that the colored antistatic yarn was inconspicuous from the surface even when the antistatic yarn was used for the thick fineness yarn, and the present invention was completed.

That is, the present invention has the following configurations (1) to (6).
(1) In a knitted fabric for business shirts containing 75% by weight or more of polyester fibers, 25 to 97% by weight of polyester fibers containing 0.6 to 5.0% by weight of white metal oxide is contained, and the fineness of single yarn is 3 to 3 to. It contains 3 to 25% by weight of 17 dtex polyester filament, and has a bending rigidity B value and bending back property (2HB) of 0.017 to 0.060 gf · cm ² / cm and 0 as average values in the vertical and horizontal directions, respectively. A knitted fabric for business shirts characterized by being .001 to 0.045 gf · cm / cm.
(2) At least a part of the polyester filament having a single yarn fineness of 3 to 17 dtex is an antistatic yarn having a resistance value of 10 ¹¹ Ω / cm or less, and the charged charge amount after 20 times of washing the knitted fabric is 6.5 μC or less. The knitted fabric for business shirts according to (1), which is characterized by being present.
(3) It consists of a single circular knit with a course density of 40 to 100 pieces / 2.54 cm and a wale density of 30 to 80 pieces / 2.54 cm, and the ratio of the number of welts to the number of knit loops is 0.2 to 1.1. The knitted fabric for a business shirt according to (1) or (2), which is a circular knitted fabric having a pattern structure.
(4) It consists of a double circular knit with a back course density of 40 to 100 pieces / 2.54 cm and a wale density of 30 to 80 pieces / 2.54 cm, and the ratio of the number of welts to the number of knit loops is 0.2 to 1. The knitted fabric for a business shirt according to (1) or (2), which comprises the pattern structure of 1.
(5) A polyester filament having a single yarn fineness of 3 to 17 dtex and a resistance value of 10 ¹¹ Ω / cm or less is twisted with a fiber other than the polyester fiber containing 0.6 to 5.0% by weight of white metal oxide. The knitted fabric for business shirts according to any one of (1) to (4), which is characterized by being knitted by blended fibers, blended yarns, adjacently cross-knitted fabrics, or aligned.
(6) A business shirt characterized in that the knitted fabric for a business shirt according to any one of (1) to (5) is used for the body.

According to the present invention, for business shirts that have the shape retention in the vertical direction, which is important for business shirts, excellent anti-shedding properties, and the aesthetics of knitted patterns, but also have flexibility and high breathability that woven fabrics do not have. Knitted fabric can be provided. Further, even a knitted fabric made of polyester fiber, which is easily charged, can be provided with antistatic properties having washing durability without deteriorating the aesthetics.

FIG. 1 is a diagram used for explaining how to count knits, tacks, and welts in the front structure and the back structure of a knitted fabric. FIG. 2 shows a knitting structure diagram of the stripes used in Example 1. FIG. 3 shows a knitting organization chart of the huerto tenjiku border used in Example 2. FIG. 4 shows a knitting organization chart of the bizaru no kanoko used in Example 3. FIG. 5 shows a knitting structure diagram of the pin head used in Example 4. FIG. 6 shows a knitting organization chart of Bright Square used in Example 5. FIG. 7 shows a knitting structure chart of the Tenjiku used in Comparative Example 1. FIG. 8 shows a knitting organization chart of the interlock used in Comparative Example 2.

Traditionally, knitted fabrics have been characterized by good breathability and high flexibility, and in particular, round knitted fabrics have too much elongation to make the silhouette beautiful when worn, and have good shape retention. It tends to be low. The present inventor has adopted a specific knitting structure that can adjust the elongation rate of the warp, particularly the elongation rate in the vertical direction to a specific range in the knitted fabric of the pattern used for the business shirt, so that the silhouette and shape retention of the business shirt can be maintained. , We have found a knitted fabric suitable for business shirts that satisfy wearing comfort. The business shirt referred to here is a shirt that does not give a sense of discomfort even in the general business scene, and refers to a shirt that is tolerated to a level that is not rude even in interviews between companies, for example. The form of the shirt includes, for example, a shirt having a collar and a placket.

In knitted fabrics, following the elasticity of the skin and the bending and stretching of joints when the body is moved significantly greatly affects the wearing comfort. For polo shirts and sports shirts, which have traditionally been favorably used for knitted fabrics, if the length of the process is high, it will be easier to follow the movements of the body and become more comfortable. However, in business shirts that have traditionally used textiles, it is important to reduce the elongation in the warp, especially in the vertical direction, in order to obtain the firmness, elasticity, silhouette, and shape retention of the dress shirt. Is. The present inventor has determined that by increasing the bending rigidity (B) in the vertical and horizontal directions and reducing the bending back property (2HB), a firmness, silhouette, and shape retention suitable for a business shirt can be obtained. I found it.

The knitted fabric of the present invention is mainly made of polyester fiber. The mixing ratio of the polyester fibers may be at least 75% by weight. When the polyester fiber content is 75% by weight or more, the knitted fabric has excellent quick-drying and skin-releasing properties. As a preferable form of the polyester fiber, it is preferable to use a filament or a composite yarn containing at least the filament. By using the polyester filament, the flexibility and shape retention of the knitted fabric can be further improved. As the polyester filament, a yarn processed such as a flat yarn (raw silk), a false twisted yarn, and an air entangled yarn can be used. False twisted yarn is more preferable from the viewpoint of softness of the texture of the knitted fabric and prevention of see-through. As the polyester, polyester fibers such as polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate, and biodegradable fibers such as polylactic acid fibers can be used, and these may be mixed. Polyethylene terephthalate fiber is preferable because it has a low manufacturing cost and strong dyeability and physical properties. The fibers other than the polyester fibers that can constitute the knitted fabric of the present invention are not particularly limited, but are, for example, natural fibers such as cotton, linen, hair and silk; rayon, polynosic, cupra and leyocel (for example, "Tencel (registered)". Recycled fiber (including solvent-spun fiber); semi-synthetic fiber such as acetate fiber and triacetate fiber; polyamide fiber such as nylon 6 and nylon 66; polyacrylonitrile fiber, polyacrylonitrile-vinyl chloride copolymer fiber Acrylic fibers such as polyethylene fibers, polyolefin fibers such as polypropylene fibers; polyvinyl alcohol fibers such as vinylon fibers and polyvinyl alcohol fibers; polyvinyl chloride fibers such as polyvinyl chloride fibers, vinylidene fibers and polyclar fibers; polyurethane fibers and the like Synthetic fibers; polyether fibers such as polyethylene oxide and polypropylene oxide; and the like can be mentioned. The cross-sectional shape of the single fiber constituting the yarn of the knitted fabric of the present invention is not limited, and various irregular cross-sectional shapes represented by a round shape, a triangular shape, an eight-leaf shape, a flat shape, a Y-shape, and the like. Threads may be used, copolymerization components having various functional groups such as dyeing with cationic dyes may be contained, and functional materials may be kneaded.

The fineness of the polyester fiber forming the knitting loop is preferably 20 to 180 dtex, more preferably 50 to 120 dtex. Threads with different fineness may be cross-knitted within the above range. In addition, this fineness may be achieved by matching fine threads or by pulling them together and knitting. If the fiber fineness of the yarn that makes the knitting loop is thinner than the above range, the knitted fabric will have a greater sense of sheerness, and the firmness and elasticity will be weakened. It can also be undesirable as a business shirt.

In the knitted fabric of the present invention, in addition to the above-mentioned measures, a thick filament having a single yarn fineness of 3 to 17 dtex is mixed in order to further improve the shape retention, elasticity and elasticity. More preferably, it is 5 to 12 dtex. More preferably, it is 5 to 10 dtex. If the single yarn fineness is thicker than the above range, the fluff that pops out on the surface of the fabric when the fiber breaks becomes hard and easily damages the skin. If the single yarn fineness is less than the above range, the effect of improving firmness and elasticity is reduced. As a means of mixing, it may be cross-knitted with another yarn by another yarn feeding, or it may be aligned with the other yarn and knitted together. Further, it may be knitted into a composite yarn by blending or blending with other yarns. The above-mentioned thick filament is preferably mixed in the knitted fabric at a ratio of 3 to 25% by weight. Since this thick fiber is very bending and hard, if it exceeds 25% by weight, the texture becomes too hard, and a feeling of gore and a feeling of gore are likely to occur. If it is less than 3% by weight, the effect of increasing elasticity is reduced. The fiber having a large single fiber fineness may be false-twisted, air-processed, twisted or the like as long as it is a long fiber, but it is more preferable to use raw silk. The total fineness of the long fibers is preferably 30 to 120 dtex. More preferably, it is 30 to 115 dtex. More preferably, it is 20 to 85 dtex. If it is less than the above range, the effect of increasing firmness and elasticity is small, and if it exceeds the above range, the texture may become too hard. This filament may be either processed silk or raw silk, but is preferably raw silk. By using raw silk, it is possible to increase the elasticity to be close to that of a woven fabric, and to suppress the elongation of the knitted fabric to bring it closer to the hand-held feeling of the woven fabric.

As the polyester fiber of the knitted fabric of the present invention, a full dull polyester fiber containing 0.6 to 5.0% by weight of a white metal oxide such as titanium oxide, zinc oxide, zinc sulfate, magnesium oxide, and barium sulfate shall be used. Is preferable. The knitted fabric of the present invention is a thin fabric and is effective for preventing a sense of sheerness. The mixing ratio of the full dull yarn is preferably 25 to 97% by weight. More preferably, it is 30 to 90% by weight. If the mixing ratio is low, the feeling of sheerness becomes stronger and the underwear and skin become easier to see and the appearance deteriorates. Since the knitted fabric of the present invention is mainly composed of a patterned fabric, the patterned portion may be dyed in a different color, or fibers having a low content of white metal oxide or irregularly shaped fibers may be used for the patterned portion and / or the ground portion to give a glossy feeling. The handle can be formed by the difference in the sense of sheerness. Therefore, it is preferable to appropriately use full dull yarn within the range of the above mixing ratio according to the pattern to be used.

In the knitted fabric of the present invention, when false twisted yarn or twisted yarn is used for the main yarn, it is preferable to use both S twist and Z twist as the false twist direction in the single knit knitted fabric. The SZ yarns may be cross-knitted, or the SZ yarns may be twisted together or aligned and knitted. By mixing S and Z twisted yarns, W & W and shape retention are further improved. Further, since the present invention is intended for a thin and high-density knitted fabric, skewing is likely to occur during the dyeing process, but there is also an advantage that skewing is reduced by using the main yarn in SZ cross knitting. ..

In the knitted fabric of the present invention, for yarns used for knitted fabrics other than polyester fibers containing 0.6 to 5.0% by weight of white metal oxide, for example, the content of white metal oxide is 0.5% by weight or less. It is preferable to use a polyester fiber called bright or semi-dull, or a cationic dye dyeable polyester fiber, but a full dull containing 0.6 to 5.0% by weight of a white metal oxide in the ground or handle. When a yarn is used and a cation dye dyeable polyester fiber is used for the opposite pattern or base, the pattern or base is dyed in a different color in a yarn-dyed manner in the dyeing process after knitting to emphasize the pattern. You can do it or make a pattern. Further, when a polyester filament having a white metal oxide content of 0.5% by weight or less is used for the opposite handle or ground, the knitted fabric may or may not be dyed in a single color. Because the luster and light transmission are different depending on the thread, the pattern can be made to stand out beautifully. However, in this case, the polyester filament having a white metal oxide content of 0.5% by weight or less is preferably used in the range of 1 to 70% by weight so that the feeling of sheerness does not become strong. More preferably, it is 10 to 40% by weight.

In the knitted fabric of the present invention, it is preferable to use an antistatic yarn for at least a part of the above-mentioned filament having a thick single yarn fineness. Examples of the antistatic yarn include fibers and metals kneaded with a conductive material such as carbon and metal particles, which are adhered to the surface by means such as thin film deposition, sputtering, and chemical plating to improve the conductivity. In particular, a fiber using a white metal compound as a conductive material or a fiber in which the black color of carbon is reduced by kneading a white metal oxide into the fiber is preferable because the fiber has high lightness and is less noticeable. When the white metal oxide is kneaded into the fiber, the white metal oxide is preferably contained in the fiber in an amount of 3 to 10% by weight. Examples of the white metal compound include antimony oxide-doped tin oxide, zinc oxide particles whose surface is conductively treated, and rutyl-type titanium oxide coated with tin oxide.

In the knitted fabric of the present invention, it is ^{preferable to mix a filament having a resistance value of 10 11} Ω / cm or less and a large single yarn fineness into the knitted fabric as the antistatic yarn. The resistance value is preferably 10 ¹ to 10 ¹¹ Ω / cm, more preferably 10 ⁴ to 10 ⁹ Ω / cm. If the resistance value exceeds the above range, it becomes difficult to obtain the required antistatic property, and if the resistance value is lower than the above range, it is very expensive and its use in general clothing is limited, so it is difficult to use.

As a method of using this antistatic yarn for the knitted fabric, it may be aligned with fibers other than polyester fibers containing 0.6 to 5.0% by weight of white metal oxide, knitted adjacent to each other, or mixed fibers. , Blended or twisted and used as a composite yarn. Originally, the antistatic yarn is colored black or has a metallic color to some extent, and it is conspicuous when filaments with a large single yarn fineness are interwoven in the shirt, but white metal oxide is 0. .Colored antistatic by aligning with fibers other than polyester fibers containing 6 to 5.0% by weight, cross-knitting adjacent to each other, or blending, blending, or twisting and using as a composite yarn. The presence of threads can be made inconspicuous. This is because the polyester fiber containing 0.6 to 5.0% by weight of the white metal oxide is whiter and has a hiding power, so that the fiber having a low content of the white metal oxide becomes more transparent and looks dark. This is because it is difficult to notice even if the part contains colored antistatic yarn.

Woven fabrics are often used in woven business shirts, and the knitted fabric of the present invention can also reproduce the woven pattern using a double knitting machine. In order to realize this, it is better to adjust the ratio of the total number of knit loops to the total number of welts in the basic structure constituting the knitted fabric. For example, in both single knit and double knit, the ratio of the total number of welts to the total number of knit loops is preferably 0.2 to 1.1, more preferably 0.3 to 1.0, and even more preferably 0.4. ~ 1.0. By constructing the welt in a specific ratio to the knit loop in the basic knitted fabric structure, it is possible to suppress the elasticity and develop appropriate elasticity and elasticity in the business shirt. Further, as a usage of the knit loop and the huerto in the structure, it is preferable to include a knit-welt unit structure in which the knit and the huerto are alternately connected in a certain ratio or more.

The knit-huhrto unit structure is a structure in which a knit loop and a huerto are adjacent to each other on one side of a knitted fabric. For example, in the knitting structure diagram of FIG. 1a, the knit-welt of (1) and (2) or the pair of welt-knit of (2) and (3) is referred to as a knit-welt structure. In FIG. 1a, the yarn is knitted only with a dial needle on one side, and the knit-welt structure has three pairs (six) of (1) (2), (3) (4), and (5) (6). ) It is continuous. In the organizational chart, if the double knit knitting machine is knitted on only one side and the needles on the other side are not used at all, the number of stitches on the unknitted side is not counted. That is, in a of FIG. 1, it is calculated assuming that there is no cylinder needle. Also, in the case of double-sided encounters, the opposite needles of the knitted needles cannot be used, so they are not counted. FIG. 1b is an example of a double knit organization chart. This is a structure in which the knitting yarn forms loops on both the front and back surfaces, and (1), (2), (3), (5) and (6) are knit loops. (4) is a welt and (7) is a tack. B in FIG. 1 consists of a total of 7 loops and welts, which are 5 knit loops, 1 welt, and 1 tack. This structure includes a pair of knit-welt structures (3) and (4) (counted as two loops). Cylinder needles and dial needles where the thread is not hooked on the needle in the area where the thread moves from the cylinder to the dial or from the dial side to the cylinder side are not counted. For example, one dial needle and one cylinder needle between (2) and (3) in b in FIG. 1 are not counted. When the cylinder side of the knitting machine (the upper needle in the figure) is the back surface of the knitted fabric, the ratio of the welt to the knit loop on the back surface is 1: 3 (0.25).

In the knitted structure, increasing the ratio of the knit-welt structure can reduce the elongation of the knitted fabric and give the knitted fabric the shape retention and elasticity required for a business shirt. However, since the knitted fabric of the present invention uses a lot of knitted patterns, if it seems difficult to form a pattern if a lot of knit-welt structure is used on the surface, double knit is used and a knit-welt structure is used for the back structure. The effect of the present invention can be achieved by including a certain proportion or more. In the knitted fabric of the present invention, the ratio of the knit-welt unit structure to the whole knitted structure is preferably 0.25 to 1.0. However, in the case of a double knit, the knit-welt unit structure included in the back structure may be within the above range with respect to the knitted structure on the back side. This ratio is preferably 0.35 to 1.0, more preferably 0.4 to 1.0, and even more preferably 0.5 to 1.0. When the ratio of the knit-welt structure in the back structure is lower than the above range, the elongation of the knitted fabric is increased and it is easy to obtain shape retention and elasticity.

In the knitted fabric of the present invention, it is preferable to form a structure with knit loops and huerto as much as possible, and it is preferable not to include tack loops in the structure as much as possible except for forming a mesh portion and connecting the front and back surfaces. The tack loop ratio is preferably 0.2 or less with respect to the entire tissue. More preferably, it is 0.1 or less. More preferably, the basic structure (complete structure) does not contain a tack loop. This is because when a tack loop is inserted, the tissue is less likely to become dense and tends to stretch easily.

The knitting structure of the knitted fabric of the present invention may be, for example, a striped pattern, a border pattern, a check pattern, a zigzag pattern, a diamond pattern, dots, or other patterns. The knit-welt knitting structure and the welt ratio are shown in the organizational chart as an example of forming the target pattern after setting the knit loop and the welt to the above ratio when forming the actual pattern. FIG. 2 shows stripes (welt / knit loop ratio = 1.0), FIG. 3 shows horizontal borders (welt / knit loop ratio = 1.0), and FIG. 5 shows a pin head pattern (welt / knit loop ratio = 0.5 (back surface only 0.5)), and FIG. 6 shows a bright square pattern (back surface welt / knit loop ratio = 0.29 (back surface only 0.5)). FIG. 1 shows how to count knits, tacks, and welts in a knit structure.

Since thin fabrics have been preferably used for business shirts, the knitted fabric of the present invention is also required to be light and thin for use as a business shirt. The basis weight of the knitted fabric of the present invention ^{is preferably 80 to 180 g / m 2} , more preferably 90 to 160 g / m ² , and even more preferably 95 to 155 g / m ² . If the basis weight exceeds the above range, the thickness dimension becomes too large and thick, and it may not be possible to achieve the thinness and lightness required for business shirts. In addition, if the basis weight is less than the above range, the elasticity and elasticity will be weakened, and it may not be possible to create an appropriate silhouette as a business shirt. The thickness of the knitted fabric of the present invention is preferably 0.2 to 0.8 mm. It is more preferably 0.3 to 0.6 mm, and even more preferably 0.3 to 0.5 mm. If the knitted fabric is thinner than the above range, the sheer feeling tends to be too strong, and if it is out of the above range, the flesh is too fleshed and the appearance and wearing feeling of the casual shirt are likely to be obtained, which makes it difficult to use for the business shirt.

The density of the knitted fabric of the present invention is preferably 40 to 100 pieces / 2.54 cm, more preferably 41 to 75 pieces / 2.54 cm. The wales density is preferably 30 to 80 pieces / 2.54 cm, more preferably 35 to 75 pieces / 2.54 cm. The density course / wale ratio is preferably 0.5 to 2.0, more preferably 0.75 to 1.8. If it exceeds the above range, it is easy for the fabric to bend easily and to be easily curled.

When dyeing the knitted fabric of the present invention, a general polyester filament knitted fabric processing method may be used, but in order to suppress the elongation in the vertical direction and adjust the vertical and horizontal elongation balance, compared with the horizontal direction. It is preferable to make the knitted fabric knit loop vertically long by slightly pulling it in the vertical direction. Further, the knitted fabric of the present invention may be subjected to predetermined water absorption processing or various functional processing. By using such a specially processed knitted fabric, it is possible to obtain a business shirt with further improved water absorption and quick-drying property and comfort. In addition, it is possible to further enhance the firmness and elasticity by performing a hard finish processing such as acrylic resin, urethane resin, and melamine resin in the finishing process.

The mechanical properties (flexural rigidity B value and bending back property (2HB)) of the knitted fabric of the present invention are in accordance with KES (Kawabata's Assessment System for Fabrics). The knitted fabric of the present invention is characterized by having elasticity and elasticity, and can be measured with KES-FB2 as a substitute measure thereof. The knitted fabric of the present invention has a bending rigidity B value of 0.017 to 0.060 gf · cm ² / cm as an average value in the vertical and horizontal directions. Within this range, it is easy to obtain a firmness close to that of a knitted fabric even though it is a knitted fabric. Further, the knitted fabric of the present invention has a bending back property (2HB) of 0.001 to 0.045 gf · cm / cm. Within this range, it tends to have a firm feel similar to that of woven fabrics.

If the flexural rigidity (B value) as the average value in the vertical and horizontal directions ^{exceeds 0.060 gf · cm 2} / cm, the texture is too hard for a shirt and it tends to be uncomfortable to wear. Further, when it is less than 0.017, the tension and the waist are weak, and the silhouette of the business shirt tends to be deteriorated. Preferably, the bending rigidity B value is 0.018 to 0.050 gf · cm ² / cm, and more preferably 0.018 to 0.040 gf · cm ² / cm.

In addition, if the bending back property (2HB) in the vertical and horizontal directions is less than 0.001, the knitted fabric tends to become stiff and too soft, and even if it exceeds 0.060 gf · cm / cm, it is a business shirt. The silhouette tends to deteriorate. Preferably, this bending back property (2HB) is 0.02 to 0.050 gf · cm / cm or less.

The elongation rate (EMT) of the knitted fabric of the present invention is measured by KES-FB1. The elongation rate (EMT) is measured by holding a 20 cm × 20 cm sample on a chuck with an interval of 5 cm and pulling it to a maximum load of 250 gf / cm at a strain rate of ^{4.00 × 10 -3 / sec.} The knitted fabric of the present invention has a relatively low elongation and is most suitable for business shirts. The elongation rate (EMT) in the vertical direction is 3 to 25%, and the elongation rate (EMT) in the horizontal direction is 8 to 40%, which are appropriate values. The vertical and horizontal average values of EMT are preferably 7 to 25%.

In the knitted fabric of the present invention, the charge amount after 20 times of washing is 6.5 μC or less, preferably 5.0 μC or less. This low charge amount of the knitted fabric of the present invention is obtained by using an antistatic yarn for the fineness yarn, whereby the knitted fabric of the present invention does not make the antistatic yarn stand out and the static electricity felt by the human body is generated. It is unlikely to occur.

Knitted fabric of the present invention, while suppressing a sense of sheer be 50cc ^/ cm 2 · sec or more, more can be achieved 65cc ^/ cm 2 · sec or more breathable. This value is high considering that the air permeability of the broad cloth generally used for the conventional business shirt is ^{about 20 cc / cm 2 · sec.}

Since the knitted fabric of the present invention is difficult to see through, it can be suitably used for business shirts, especially for the body thereof. Although the knitted fabric of the present invention is a round knitted fabric, the degree of sheer prevention is 70 or more. Furthermore, by dyeing the pattern part in a light color, the pattern is conspicuous and the inside of the shirt is visually obscured.

The business shirt used for the knitted fabric of the present invention is a shirt with a collar that can be used in the business scene. Examples thereof include office shirts, uniform shirts used in business establishments, dress shirts, cutter shirts, blouses, button-down shirts and the like. It is not always necessary to have a placket, but a specification with a placket is more formal and easier to use in the business scene.

Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited to these Examples. Each performance evaluation in the examples was performed by the following method.

(Knitted fabric density)
The course density (pieces / 2.54 cm) and the wale density (pieces / 2.54 cm) of the knitted fabric were measured according to the density of JIS-L1096 8.6.2 knitted fabrics. When visually measuring, the place having the largest number of knit loops on the organizational chart was selected in the wale direction (or course direction), and the number of knit loops was measured and used as the density.

(Metsuke of knitted fabric)
The basis weight of the knitted fabric was measured according to the mass per unit area in the standard state of JIS-L1096 8.3.2A method.

(Thickness of knitted fabric)
The thickness of the knitted fabric was measured according to the thickness of JIS-L1096 8.4A method. The constant pressure under the measurement conditions was set to 23.5 kPa.

(Breathability)
The air permeability of the knitted fabric was measured according to the air permeability (Frazil type A method) specified in JIS-L-1096 8.26.1.

(Mechanical characteristics)
The mechanical properties of the knitted fabric were in accordance with KES (Kawabata's Assessment System for Fabrics). The elongation rate (EMT) of the knitted fabric was measured by KES-FB1 manufactured by Katou Tech Co., Ltd. The elongation rate (EMT) was measured by grasping a 20 cm × 20 cm sample on a chuck with an interval of 5 cm and pulling it to a maximum load of 250 gf / cm at a strain rate of ^{4.00 × 10 -3 / sec.} Fabrics that are difficult to stretch have a low EMT value.

For bending characteristics, use KES-FB2 manufactured by Katou Tech Co., Ltd., fix the 1 cm width of a predetermined area of each sample between chucks at 1 cm intervals, bend to the front side ^{up to the maximum curvature + 2.5 cm -1, and then bend.} Measured by bending back to a maximum curvature of −2.5 cm ^{-1 and then undoing.} The flexural rigidity (B) [ gf · cm ² / cm] was calculated from the inclination when the inclination of the bending moment with respect to the curvature became almost constant at the beginning of bending to the front side. The bending recovery (2HB) [ gf · cm / cm] was determined from the hysteresis width. The larger the B value, the harder the bending and the higher the firmness. The larger the 2HB value, the worse the bending back property, and the less the stiffness tends to be.

(Sensory evaluation of elasticity and elasticity)
As the texture evaluation of the firmness and elasticity when the fabric is touched by hand, the cotton broadcloth was given the highest rank of 5 and the lowest rank was set to 1, and the evaluation was made on a scale of 1 to 5. The judgment was made by one expert in texture.

(Sheer feeling)
The evaluation was performed using the Boken standard BQE A038 see-through prevention test of the Boken Quality Evaluation Organization. A white plate is placed on the skin side of the test piece, and the reflectance (RS-white) of visible light (380 nm to 780 nm) on the outer surface is measured. Similarly, black plates are stacked, the reflectance (Rs-black) is measured, and the degree of see-through prevention is calculated. If the degree of sheer prevention is 74 or more, it can be used as a dress shirt without worrying about the sheer feeling.
See-through prevention = Rs-black / Rs-white × 100

(W & W nature of knitted fabric)
The morphological stability (W & W property) of dress shirts was evaluated in accordance with the Law of the Council for Quality Performance Measures for Apparel Products. The determination was made using the determination standard 3D replica specified in AATCC 124-1984. The judgment was displayed in grade 5 (good) to grade 1 (poor).

(Product shape retention)
Using the pleatability test method for knitted fabrics of JIS-L1060: 2012, the three-dimensional appearance of the pleated shape after washing was used as a substitute evaluation for shape retention. The grade of the pleated shape before washing and the pleated shape after repeating the washing operation and the drying operation 5 times were judged according to the judgment criteria. As the standard for pleating judgment, a five-step judgment standard three-dimensional replica specified in AATCC TestMethod 88C was used. The judgment was displayed in grade 5 (good) to grade 1 (poor).

(Ease of movement of the upper body when wearing a dress shirt)
After sewing the fabric into a long-sleeved dress shirt with a neck circumference of 41 cm and a sleeve length of 84 cm, a 30-year-old man with a medium-sized medium back wears it, spreads both hands sideways, and rotates both hands / shoulders horizontally around the spine. The ease of movement (resistance of the fabric to movement) was used as a sensory value, and a three-level evaluation was performed in the order of easy movement: ○>△> ×: difficult to move.

(Amount of charge after washing)
The measurement was performed according to the JIS L1094-5.2 triboelectric charge method. The measurement environment was 20 ° C. and 40% RH. The washing was performed 20 times in accordance with the JIS L0217 103 method, and finally the clothes were hung and dried.

( Reference example 1)
Using a 30-inch, 36-gauge single circular knitting machine (VXC-3FA manufactured by Fukuhara Seiki Seisakusho), a raw machine that becomes a striped knitted fabric with a 100% welt knit structure consisting of 24 yarns of complete structure F1 to F24 shown in FIG. Knitted. At that time, 84 dtex (T), which is a round cross-section yarn in which 1.5% by weight of titanium oxide fine particles are kneaded into the yarn feeders F3, 4, 7, 8, 11, 12, 15, 16, 19, 20, 23, 24. , 48filament (f) polyethylene terephthalate false twisted yarn (Z twist) (yarn 1) was used. As the stripe portion, a false twisted yarn (S twist) (thread 2) of 84T36f, which is a cationic dye dyeable round cross-section yarn, was used for the yarn feeders F2, 6, 10, 14, 18, and 22. Further, polyethylene terephthalate raw silk 56T6f (thread 3) containing 0.1% by weight of titanium oxide fine particles is used for the yarn feeders F1, 5, 9, 13, 17 and 22T3f antistatic raw silk (KB seiren) is used for F21. Bertlon B68 type Resistance value 10 ⁸ to 10 ¹⁰ Ω / cm) (thread 4) and polyethylene terephthalate raw silk 56T6f (thread 3) containing 0.1% by weight of titanium oxide fine particles were used together. At this time, the mixing ratio of the yarn 1 was 54.2% by weight, the mixing ratio of the yarn 2 was 27.1% by weight, the mixing ratio of the yarn 3 was 17.5%, and the mixing ratio of the yarn 4 was 1.2% by weight. The mixing ratio of the fine fine yarn was 18.7% by weight, and the mixing ratio of the antistatic yarn was 1.2% by weight.

The finished raw machine was preset at 160 ° C. for 2 minutes using a pin tenter made by Hirano Texseed, and then refined, dyed, and finished according to the following formulation.
Smelting prescription: Satoda processing using Nisaka Seisakusho liquid flow dyeing machine NS type Nonizol N 1 g / l, NICCA CHEMICAL Neocrystal CG1000 0.5 g / l, soda ash 0.5 g / l, bath ratio 1:15, 95 ° C x 30 minutes.
Dyeing prescription: Nisaka Seisakusho liquid flow dyeing machine NS type, bath ratio 1:15 130 ° C x 45 minutes, acetic acid 0.2 g / l pH = 4, Meisei Kagaku Dispar N 700 0.5 g / l, Nikka Kagaku Neo Crystal GC1000 0.5 g / l, Takamatsu oil and fat SR1800 1.5% owf, Dispersive cationic dye Kayacryl Light Blue4GSL-ED 1.0% omf After dyeing, centrifugal dehydration and drying (120 ° C x 3 minutes) were performed, and the following was performed. A finishing agent was applied under the conditions. The finish pick-up was 70%.
Sunstat ES-11 (Antistatic agent manufactured by Sanyo Chemical Industries, Ltd.) 1% ows (on the weight of solution)
Then, the final set was performed under the condition of pin tenter 160 ° C. × 2 minutes, and the sex content was adjusted to obtain the final dough. At that time, the width of the tenter was set to the extent that wrinkles were removed from the knitted fabric, and care was taken not to pull the finished knitted fabric vertically and horizontally as much as possible. Table 1 shows the detailed composition and evaluation results of the finished knitted fabric.

( Reference example 2)
Using a 30-inch, 36-gauge single circular knitting machine (3FA manufactured by Fukuhara Seiki Seisakusho Co., Ltd.), we knit a raw machine with a horizontal border pattern by different color dyeing based on the welt knit consisting of the complete structure F1 to F14 shown in FIG. .. At that time, 84T48f polyethylene terephthalate false twisted yarn (Z twist) (yarn) which is a round cross-section yarn in which 1.5% by weight of titanium oxide fine particles are kneaded into yarn feeding ports F6, 8, 10, 12, 14 as a yarn serving as a base. For 1), 84T48f polyethylene terephthalate false twisted yarn (S twist) (yarn 5), which is a round cross-section yarn obtained by kneading 1.5% by weight of titanium oxide fine particles into F7, 9, 11, 13 was used. Further, as the border portion, a false twisted yarn (S twist) (thread 2) of 84T36f, which is a round cross-section yarn dyeable with a cationic dye, was used for the yarn feeding ports F2, 3, 4, and 5. For F1, raw silk 56T6 and 22T3f antistatic raw silk (KB Seiren Bertlon B68 type resistance value 10 ⁸ to 10 ¹⁰ Ω / cm), which is a polyester long fiber with a thick single yarn fineness and a round cross section, is used at S twist 200t / m. A combined twisted yarn (yarn 6) was used. At this time, the mixing ratio of the yarn 1 is 35.7% by weight, the mixing ratio of the yarn 5 is 28.6% by weight, the mixing ratio of the yarn 2 is 28.6% by weight, and the mixing ratio of the yarn 6 as a thick fine yarn is 7.1% by weight. Met. The mixing ratio of the antistatic yarn was 2.0% by weight.

The finished raw machine was dyed in the same manner as in Reference Example 1 to obtain a final knitted fabric. Table 1 shows the detailed composition and evaluation results of the finished knitted fabric.

( Reference example 3)
A 30-inch, 28-gauge single circular knitting machine (VXC-3FA manufactured by Fukuhara Seiki Seisakusho Co., Ltd.) was used to knit a raw machine having a Visalcanoko pattern consisting of complete structures F1 to F20 shown in FIG. At that time, a 110T48f polyethylene terephthalate false twist yarn (yarn 8), which is a round cross-section yarn in which 1.5% by weight of titanium oxide fine particles are kneaded into the yarn feeders F4,5,F9,10,14,15,19,20, is used. board. Next, 84T36f false twisted yarn (yarn 2), which is a round cross-section yarn of high-pressure cationic dyeable polyester, was used for the yarn feeders F2,3, F7,8,12,13,17,18. Then, a thick fineness yarn (yarn 7) of 56T6f, which is a semi-dull yarn having a flat cross section (warp / weft ratio 1: 5) containing 0.4% by weight of titanium oxide fine particles, was used for the yarn feeders F1, 6 and 11. Further, the 56T6f thick fineness yarn (thread 7) and the polyester antistatic yarn 28T2f (Kracabo KC-220 resistance value 10 ⁷ to 10 ⁸ Ω / cm) (thread 9) were aligned and knitted on F16. The mixing ratio of the yarn 8 in the knitted fabric was 56.6% by weight, the mixing ratio of the yarn 2 was 35.4% by weight, the mixing ratio of the yarn 7 was 7.6% by weight, and the mixing ratio of the yarn 9 was 0.4% by weight. rice field.

The finished raw machine was opened and refined and dyed according to the following prescription.
Smelting prescription: Satoda processing using Nisaka Seisakusho liquid flow dyeing machine NS type Nonizol N 1 g / l, NICCA CHEMICAL Neocrystal CG1000 0.5 g / l, soda ash 0.5 g / l, bath ratio 1:15, 95 ° C x 30 minutes.
Dyeing prescription: Nisaka Seisakusho liquid flow dyeing machine NS type, bath ratio 1:15 130 ° C x 45 minutes, acetic acid 0.2 g / l pH = 4, Meisei Kagaku Dispar N 700 0.5 g / l, Nikka Kagaku Neo Crystal GC1000 0.5 g / l, Takamatsu oil and fat SR1800 1.5% owf, Dispersive cationic dye Kayacryl Light Blue4GSL-ED 1.0% omf After dyeing, centrifugal dehydration and drying (120 ° C x 3 minutes) were performed, and the following was performed. The finishing agent was applied under the conditions and dried. The pick-up rate of the finishing agent was 90%.
Sunstat ES-11 (Antistatic agent manufactured by Sanyo Chemical Industries, Ltd.) 1% ows (on the weight of solution)
Then, the final set was performed under the condition of pin tenter 160 ° C. × 2 minutes, and the sex content was adjusted to obtain the final dough. For finishing, I pulled it vertically a little to finish it. Table 1 shows the detailed composition and evaluation results of the finished knitted fabric.

(Example 4)
A 33-inch, 28-gauge double circular knitting machine (V-4AL manufactured by Fukuhara Seiki Seisakusho Co., Ltd.) was used to knit a raw machine having a pinhead pattern consisting of the complete structures F1 to F18 shown in FIG. At that time, polyethylene terephthalate of 84T48f, which is a round cross-section yarn in which 1.5% by weight of titanium oxide fine particles are kneaded into the yarn feeders F1, 3, 4, 5, 7, 9, 10, 11, 13, 15, 16 and 17. False twisted yarn (FD) (yarn 1) was used. Next, false twisted yarn (CD) (yarn 2) of 84T36f, which is a round cross-section yarn of high-pressure cationic dyeable polyester, was used for the yarn feeders F6, 12, and 18. Further, for F2 and 8, the thick fineness yarn 56T24f (yarn 10) and the SD raw silk (yarn 7) of the raw silk 56T6f were aligned and used. Then, the thick fineness thread 56T24f (thread 10) and the antistatic thread 22T3f (thread 4) were aligned and used for F14. The mixing ratio of the yarn 1 in the knitted fabric is 58.5% by weight, the mixing ratio of the yarn 2 is 13.5% by weight, the mixing ratio of the yarn 10 is 14.8% by weight, the mixing ratio of the yarn 7 is 11.0% by weight, and the yarn. The mixing ratio of 4 was 2.2% by weight. The mixing ratio of the thick fine yarns of this knitted fabric is 13.2% by weight.

The finished raw machine was opened and preset at 160 ° C. for 2 minutes using a pin tenter made by Hirano Techseed, and then refined, dyed, and finished with the following formulation.
Smelting prescription: Satoda processing using Nisaka Seisakusho liquid flow dyeing machine NS type Nonizol N 1 g / l, NICCA CHEMICAL Neocrystal CG1000 0.5 g / l, soda ash 0.5 g / l, bath ratio 1:15, 95 ° C x 30 minutes.
Dyeing prescription: Nisaka Seisakusho liquid flow dyeing machine NS type, bath ratio 1:15 130 ° C x 45 minutes, acetic acid 0.2 g / l pH = 4, Meisei Kagaku Dispar N 700 0.5 g / l, Nikka Kagaku Neo After dyeing with Crystal GC1000 0.5 g / l, Takamatsu oil and fat SR1800 1.5% owf, and distributed cationic dye Kayacryl Light Blue4GSL-ED 0.5% owf, centrifuge dehydration and drying (120 ° C. x 3 minutes) are performed. The finishing agent was applied under the conditions of. The finish pick-up was 70%.
Sunstat ES-11 (Antistatic agent manufactured by Sanyo Chemical Industries, Ltd.) 1% ows (on the weight of solution)
Then, the final set was performed under the condition of pin tenter 160 ° C. × 2 minutes, and the sex content was adjusted to obtain the final dough. For finishing, I pulled it vertically a little to finish it. Table 1 shows the detailed composition and evaluation results of the finished knitted fabric.

(Example 5)
Using a 33-inch, 28-gauge double circular knitting machine (V-4AL manufactured by Fukuhara Seiki Seisakusho Co., Ltd.), a bright square pattern raw machine having a complete structure F1 to F28 shown in FIG. At that time, 84T48f polyethylene terephthalate false twisted yarn (FD), which is a round cross-section yarn in which 1.5% by weight of titanium oxide fine particles are kneaded into the yarn feeders F1,4,7,10,13,15,18,21,24,27. ) (Thread 1) was used. Next, at the yarn feeders F3, 6, 9, 12, 17, 20, 23 and 26, a false twisted yarn (BR) (thread) of 84T36f, which is a round cross-section yarn in which 0.1% by weight of titanium oxide fine particles are kneaded, is used. 11) was used. Further, for the yarn feeders F2 and 16, polyethylene terephthalate false twisted yarn (SD) (yarn 10) of 56T24f, which is a round cross-section yarn in which 0.1% by weight of titanium oxide fine particles were kneaded, was used. Further, at the yarn feeders F5, 8, 11, 14, 19, 22 and 25, a thick fineness yarn (SD) (thread) of 56T6f polyethylene terephthalate raw silk, which is a round cross-section yarn in which 0.5% by weight of titanium oxide fine particles is kneaded. 7) was used. Then, a combined twisted yarn (yarn 6) of raw silk 56T6f and polyester antistatic yarn 22T3f was used for the yarn feeding port F28. The mixing ratio of the yarn 1 in the knitted fabric is 43.8% by weight, the mixing ratio of the yarn 11 is 36.4% by weight, the mixing ratio of the yarn 7 is 12.1% by weight, the mixing ratio of the yarn 10 is 5.7% by weight, and the yarn. The mixing ratio of 6 was 2.0%. Of these, the mixing ratio of the antistatic yarn was 0.6% by weight.

The finished raw machine was dyed and finished in the same manner as in Reference Example 1. Table 1 shows the detailed composition and evaluation results of the finished knitted fabric.

(Reference example 6)
Using a 33-inch, 28-gauge double circular knitting machine (V-4AL manufactured by Fukuhara Seiki Seisakusho Co., Ltd.), a bright square pattern raw machine having a complete structure shown in FIG. Knitted. However, the thick polyethylene terephthalate raw silk of 56T6f, which is a round cross-section yarn in which 0.5% by weight of titanium oxide fine particles are kneaded, is used at the yarn feeders F2, 5, 8, 11, 14, 16, 19, 22, 25 and 28. Fineness yarn (SD) (thread 7) was used. Also, no antistatic yarn was used for this knitted fabric.

(Comparative Example 1)
Using the same knitting machine as in Reference Example 1, the raw machine of Tenjiku shown in FIG. 7 was knitted. As the yarn used, a polyethylene terephthalate false twisted yarn (Z twist) (yarn 12) of 84T48f, which is a semi-dull round cross-section yarn kneaded with 0.4% by weight of titanium oxide fine particles, was used.

The finished raw machine was processed in the same manner as in Reference Example 2 to obtain a finished knitted fabric. Table 1 shows the detailed composition and evaluation results of the finished knitted fabric.

(Comparative Example 2)
Using the same knitting machine as in Example 4, the interlock raw machine shown in FIG. 8 was knitted. As the yarn used, a polyethylene terephthalate false twisted yarn (FD) (yarn 1) of 84T48f, which is a round cross-section full-ply yarn kneaded with 1.5% by weight of titanium oxide fine particles, was used.

The finished raw machine was processed in the same manner as in Reference Example 2 to obtain a finished knitted fabric. Table 1 shows the detailed composition and evaluation results of the finished knitted fabric.

(Comparative Example 3)
Australian cotton (micronear: 4.0-4.6, average fiber length: 1.12 to 1.21 inches, strength: 30-34 g / tex) and polyester short fibers (fineness 1.5 dtex, fiber length 38 mm) ) Is mixed at a ratio of 50% by weight each to create 120 gelen / 15yd roving through a general pre-spinning process (blended cotton-carding cotton-kneaded yarn-crude spinning), ring spinning equipment manufactured by Toyoda Spinning Co., Ltd. A spun yarn (yarn 13) of total draft 38.4 with a twist coefficient k = 3.7 and 40 Ne (English cotton count) with a brake draft of 1.40 was manufactured by RX-240 (link corner). Using this spun yarn for the warp and weft, weaving a plain woven fabric with a warp density of 127 / 2.54 cm and a weft density of 70 / 2.54 cm, fluffing, degluing, continuous scouring / bleaching, by the usual method. After mercerizing, continuous scouring and dyeing with a disperse dye and a reactive dye to give a sax color, and then applying a softener with a tenter to finish. The finishing density was 129 lines / 2.54 cm in diameter and 72 lines / 2.54 cm in weft. Table 1 shows the detailed composition and evaluation results of the finished finished woven fabric.

According to the present invention, it is intended to provide a knitted fabric for a business shirt that is difficult to see through and has an excellent antistatic function while ensuring a texture such as elasticity and elasticity comparable to that of a business shirt made of a normal woven fabric. Is possible, and the contribution in the industry is great.

Claims (5)

In business shirt knitting fabric comprising polyester fibers 75% by weight or more, the knitted fabric comprises 25-97 wt% polyester fiber containing white metal oxides 0.6 to 5.0 wt%, and single yarn fineness of 3 It contains 3 to 25% by weight of polyester filament of ~ 17 dtex, at least a part of the polyester filament of single yarn fineness of 3 to 17 dtex is an antistatic yarn with a resistance value of 10 ¹¹ Ω / cm or less, and the length of the knitted fabric. rigidity B value bending as the mean value of the direction and the lateral direction and bending back of (2HB) are each ^{0.017~0.060gf · cm 2 /cm,0.001~0.045gf · cm /} cm, and The knitted fabric consists of double circular knitting with a back course density of 40 to 100 pieces / 2.54 cm and a wale density of 30 to 80 pieces / 2.54 cm, and the ratio of the number of welts to the number of knit loops is 0.2 to 1. A knitted fabric for business shirts, which is characterized by having a patterned structure of 1. The knitted fabric for a business shirt according to claim 1, wherein the antistatic yarn is a raw antistatic yarn. The knitted fabric for a business shirt according to claim 1 or 2, wherein the amount of electric charge after washing the knitted fabric 20 times is 6.5 μC or less. A polyester filament having a single yarn fineness of 3 to 17 dtex and a resistance value of 10 ¹¹ Ω / cm or less is twisted and mixed with a fiber other than the polyester fiber containing 0.6 to 5.0% by weight of a white metal oxide. The knitted fabric for business shirts according to any one of claims 1 to 3 , wherein the knitted fabric is knitted in a blended manner, adjacently knitted, or aligned. A business shirt characterized in that the knitted fabric for a business shirt according to any one of claims 1 to 4 is used for the body.

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