Knitted fabric

Abstract

Provided is knitted fabric having excellent bending softness. The present invention is knitted fabric containing a front ground texture, a rear ground texture, and binding threads binding the front ground texture and the rear ground texture, wherein the front ground texture and the rear ground texture include non-elastic fibers, the binding threads include elastic fibers, the knitting density of the binding threads defined by the following equation:　knitting density of binding threads = (number of courses in which the binding threads in one complete texture are knitted) / (total number of courses in one complete texture) is at least 1 / 3, and the air permeability of the knitted fabric is at least 70 cm3 / cm2・s or greater.

Description

Technical Field

[0001] The present invention relates to knitted fabrics.

Background Art

[0007] In addition, the knitted fabric described in Patent Document 2 is dense and has a large air permeability resistance, so the friction between the fibers is relatively large. As a result, it has been difficult to obtain the high bending softness required for applications such as inner clothing and sports clothing in the knitted fabric described in Patent Document 2.

[0008] In view of the above problems of the prior art, the problem to be solved by the present invention is to provide a knitted fabric excellent in bending softness.

Means for Solving the Problems

[0009] In order to solve the above problems, as a result of intensive studies and repeated research by the present inventors, it was unexpectedly found that the problems can be solved by the following configuration, and the present invention has been completed.

[0010] [1] A knitted fabric including a front ground structure, a back ground structure, and a connecting yarn connecting the front ground structure and the back ground structure, wherein the front ground structure and the back ground structure contain inelastic fibers, the connecting yarn contains elastic fibers, and the following formula: Knitting density of connecting yarn = (Number of courses in which the connecting yarn is knitted in one complete pattern) / (Total number of courses in one complete pattern) The knitting density of the connecting yarn defined by is 1 / 3 or more, and the air permeability of the knitted fabric is 70 cm 3 / cm 2 ·s or more, knitted fabric. [2] The knitted fabric according to [1], wherein the air permeability of the knitted fabric is 100 cm 3 / cm 2 ·s or more. [3] The knitted fabric according to [1] or [2], wherein the ratio of the mass of elastic fibers contained in the bonding yarn to the mass of non-elastic fibers contained in the base fabric of the table or the base fabric of the reverse side is 0.02 to 0.40. [4] The knitted fabric according to [3], wherein the ratio of the mass of elastic fibers contained in the bonding yarn to the mass of non-elastic fibers contained in the ground fabric of the table or the ground fabric of the reverse side is 0.02 to 0.16. [5] The knitted fabric according to [3] or [4], wherein the ratio of the fineness of the elastic fibers contained in the bonding yarn to the fineness of the non-elastic fibers contained in the ground fabric of the front or the ground fabric of the back is 0.12 to 0.78. [6] The knitted fabric according to any of [1] to [5] above, wherein the ground fabric on the front and the ground fabric on the back are composed solely of non-elastic fibers. [7] The knitted fabric according to any one of [1] to [6] above, wherein the bonding yarn is composed solely of elastic fibers. [8] The knitted fabric according to any of [1] to [7] above, wherein the bonding yarn bonds the front ground structure and the back ground structure only with a tuck structure. [9] The knitted fabric according to any one of [1] to [8] above, wherein the knitting density of the bonding yarn is 1 / 1.

[10] The knitted fabric according to any of [1] to [9] above, wherein the thickness of the knitted fabric is 1.00 mm or less.

[11] The knitted fabric according to any one of [1] to

[10] , wherein the fineness of the elastic fiber is 50 dtex or less.

[12] The knitted fabric according to any one of [1] to

[11] , wherein the fineness of the non-elastic fiber is 150 dtex or less.

[13] The knitted fabric according to [4], wherein the front fabric and the back fabric are composed only of non-elastic fibers, the connecting yarn is composed only of elastic fibers, and the connecting yarn connects the front fabric and the back fabric using only a tuck structure.

[14] A knitted fabric that is a weft knitted fabric, as described in any of [1] to

[13] above. [Effects of the Invention]

[0011] The knitted fabric according to the present invention is a knitted fabric with excellent flexibility. [Brief explanation of the drawing]

[0012] [Figure 1] These are the knitting structure diagrams for the knitted fabrics of Examples 1 to 4. [Figure 2] This is the knitting structure diagram for the knitted fabric of Comparative Example 1. [Figure 3] This is an example of a cross-section of the knitted fabric of this embodiment. [Modes for carrying out the invention]

[0013] Embodiments of the present invention will be described in detail below. The knitted fabric of this embodiment is a knitted fabric comprising a front base fabric, a back base fabric, and a bonding yarn that bonds the front base fabric and the back base fabric, wherein the front base fabric and the back base fabric contain non-elastic fibers, and the bonding yarn contains elastic fibers, and the following formula: Bonding yarn density = (Number of courses in one complete fabric that incorporate bonding yarn) / (Total number of courses in one complete fabric) The knitting density of the bonding yarn, as defined by [the specified method], is 1 / 3 or more, and the breathability of the knitted fabric is 70 cm. 3 / cm 2 It is a knitted fabric that is s or larger.

[0014] The knitted fabric of this embodiment may be either a weft-knitted fabric or a warp-knitted fabric, but is preferably a weft-knitted fabric and is preferably manufactured by a double circular knitting machine.

[0015] The knitted fabric of this embodiment includes a front base fabric and a back base fabric. The front base fabric and the back base fabric contain inelastic fibers, and may also contain elastic fibers, but it is preferable that they be composed only of inelastic fibers. In this specification, "inelastic fiber" means a fiber with a maximum elongation of less than 100%, and "elastic fiber" means a fiber with a maximum elongation of 100% or more. The inelastic fibers included in the front base fabric and the back base fabric can be natural fibers, chemical fibers, etc., and are not particularly limited. Examples of natural fibers include cotton, linen, silk, wool, etc. Examples of chemical fibers include polyester fibers such as polyethylene terephthalate and polytrimethylene terephthalate, polyamide fibers such as nylon 6 and nylon 66, and regenerated cellulose fibers such as rayon, cupro, and lyocell. Bright yarns, semi-dull yarns, full-dull yarns, etc., can be arbitrarily selected, and the cross-sectional shape of the fibers may also be any cross-sectional shape such as round, elliptical, W-shaped, cocoon-shaped, or hollow. The fiber form is not particularly limited and may be raw yarn or crimped yarn such as false twist, but raw yarn is preferred from the viewpoint of bending flexibility. Furthermore, these inelastic fibers may be in the form of composite fibers such as interlaced composites or twisted fibers. The fineness of the inelastic fibers is preferably 150 dtex or less from the viewpoint of bending flexibility of the knitted fabric.

[0016] The knitted fabric of this embodiment includes a connecting yarn that links the front and back fabrics. The connecting yarn contains elastic fibers and may be a composite yarn such as a covering yarn containing non-elastic fibers, but it is preferable that it be composed solely of elastic fibers. The composition and manufacturing method of the elastic fibers included in the connecting yarn are not particularly limited and can be polyurethane-based or polyester-based elastic fibers, manufactured by known spinning methods. For example, as polyurethane-based elastic fibers, those manufactured by melt spinning, dry spinning, or wet spinning can be used. It is preferable that the elastic fibers do not lose their elasticity when the normal processing temperature of the final setting process during dyeing is around 140 to 170°C. Furthermore, as elastic fibers, those that have been given functionality such as high setting ability, antibacterial properties, moisture absorption, and water absorption by adding special polymers or powders can also be used. From the viewpoint of the bending softness of the knitted fabric, the fineness of the elastic fibers is preferably 50 dtex or less, and more preferably 17 to 44 dtex.

[0017] The knitted fabric of this embodiment is given by the following formula: Bonding yarn density = (Number of courses in one complete fabric that incorporate bonding yarn) / (Total number of courses in one complete fabric) The knitting density of the connecting yarn, as defined by the formula, is 1 / 3 or more. Here, one complete structure refers to the smallest repeating unit of the knitting structure that makes up the knitted fabric. For example, in the structure diagram of Figure 1, the total number of courses in one complete structure is 2, and the number of courses in one complete structure in which the connecting yarn is knitted is 2, so the knitting density of the connecting yarn is 1 / 1. In the knitting structure diagram of Figure 2, the total number of courses in one complete structure is 8, and the number of courses in one complete structure in which the connecting yarn is knitted is 2, so the knitting density of the connecting yarn is 1 / 4. When the knitting density of the connecting yarn is 1 / 3 or more, the degree of freedom of the loops of the inelastic fibers that make up the two ground structures of the front and back is reduced by the connecting yarn, so the thickness of the knitted fabric is reduced and the effect of making the knitted fabric flexible is achieved. From the viewpoint of the flexibility of the knitted fabric, the knitting density of the connecting yarn is preferably 1 / 2 or more, and 1 / 1 is the most preferred. A knitting density of 1 / 1 for the connecting yarn means that the connecting yarn is included in all courses.

[0018] The knitted fabric of this embodiment has an air permeability of 70 cm 3 / cm 2 ·s or more, preferably 100 cm 3 / cm 2 ·s or more, more preferably 120 cm 3 / cm 2 ·s or more. When the air permeability is 70 cm 3 / cm 2 ·s or more, the knitted fabric has a moderately sparse structure, so the friction between fibers is reduced and the knitted fabric becomes bend-soft. To make the air permeability 70 cm 3 / cm 2 ·s or more, it is preferable to design the knitted fabric so that the friction between fibers does not increase, such as the surface ground weave and the back ground weave are composed only of inelastic fibers, the connecting yarn is composed only of elastic fibers, the connecting yarn connects the surface ground weave and the back ground weave only with a tack weave, the fineness of the elastic fibers contained in the connecting yarn is 50 dtex or less, or the fineness of the inelastic fibers contained in the surface ground weave and the back ground weave is 150 dtex or less.

[0019] It is preferable that the thickness of the course including the connecting yarn of the knitted fabric of this embodiment is 1.00 mm or less. If the thickness of the knitted fabric is 1.00 mm or less, the knitted fabric becomes bend-soft.

[0020] In this embodiment, the ratio of the mass of elastic fibers in the bonding yarn to the mass of inelastic fibers in the front or back base fabric is preferably 0.02 to 0.40, more preferably 0.02 to 0.24, and even more preferably 0.02 to 0.16. When the ratio is 0.16 or less, the elasticity of the elastic fibers in the bonding yarn brings the front and back base fabrics closer together, reducing the thickness and making the knitted fabric more flexible. When the ratio is 0.02 or more, the elastic fibers in the bonding yarn can sufficiently withstand the mass of the inelastic fibers, making the yarn less likely to break. In order to achieve a ratio of 0.02 to 0.16, it is preferable that the ratio of the fineness of the elastic fibers in the bonding yarn to the fineness of the inelastic fibers in the front or back base fabric is 0.12 to 0.78, or that the ratio of the length of the elastic fibers in the bonding yarn to the length of the inelastic fibers in the front or back base fabric is 0.35 or less. [Examples]

[0021] The present invention will be described in detail below with reference to examples and comparative examples. However, the present invention is not limited to these examples. First, we will explain the methods for measuring various physical properties used in the examples and comparative examples.

[0022] (1) Basis weight (g / m 2 ) A 10cm x 10cm sample was cut from the knitted fabric that had been humidified for one day at 20℃ x 65%RH. The weight was measured in grams using a precision balance, and the result was multiplied by 100 to obtain the g / m² value. 2 The weight of the knitted fabric was calculated by converting it to [a specific value].

[0023] (2) Air permeability (cm 3 / cm 2 ·s) The amount of air passing through the test specimen per unit area and per unit time was determined by measuring according to the JIS-L1096-A method (Fragile method).

[0024] (3) Thickness of the knitted fabric (mm) A knitted fabric was cut in the weft direction in a course containing the bonding yarn to create an observation sample. The observation sample, in a tension-free state, was attached to a flat surface with double-sided tape and fixed in place. Then, a microscope (Keyence VHX-6000) was used to photograph the cross-section of the course containing the bonding yarn from the end of knitting. In the captured image, as shown in Figure 3, two straight lines were drawn so that the line where the vertices of the front ground structure meets the line where the vertices of the back ground structure meet are parallel. The distance between these two straight lines was defined as the thickness of the knitted fabric.

[0025] (4) Bending stiffness of knitted fabric (cN·cm) 2 / cm) Measurements are performed using a KES-FE2-AUTO-A automatic pure bending tester manufactured by Kato Tech Co., Ltd. A knitted fabric cut to 20.0 cm wide x 20.0 cm long is used as the test specimen. The test specimen is placed on the sample stand so that the cut end in the warp direction of the knitted fabric is at the back of the sample stand. The test specimen is inserted all the way in until the sample insertion position confirmation lamp lights up, and the bending stiffness in the weft direction of the knitted fabric (the stiffness of the knitted fabric when bent so that a crease is formed in the warp direction) is measured. In this embodiment, the measurement sensitivity was set to 4.0 gf·cm / 10V, but it may be adjusted appropriately within the range of 4.0 to 50.0 gf·cm / 10V depending on the magnitude of the bending stiffness of the test specimen. The tester measures the bending stiffness when the knitted fabric is bent upwards and when it is bent downwards, and the average value is adopted. The test is performed on three test specimens, and the average is calculated. The unit of measurement for the tester is gf·cm. 2 Since it is output as / cm, multiply this by 0.980665 to get cN·cm 2 Convert to cm. The lower the bending stiffness value, the softer the knitted fabric. In this embodiment, the bending stiffness is 0.0180 cN·cm. 2 If the value is less than / cm, it is considered flexible, and furthermore, if it is less than 0.0100 cN·cm, it is considered flexible. 2 If the value is less than / cm, it was judged to have excellent bending flexibility.

[0026] (5) The ratio of the mass of elastic fibers contained in the bonding yarn to the mass of inelastic fibers contained in the surface fabric or back fabric (referred to as "mass ratio" in the table). From a knitted fabric that had been humidified for one day at 20°C × 65% RH, a 100-well portion of the fabric was cut out. Non-elastic fibers contained in the front fabric, non-elastic fibers contained in the back fabric, and elastic fibers contained in the bonding yarn were collected, and their masses were measured using a precision balance. The larger of the two masses, the non-elastic fibers contained in the front fabric or the non-elastic fibers contained in the back fabric, was designated as W1 (g), and the mass of the elastic fibers contained in the bonding yarn was designated as W2 (g). The ratio W2 / W1 to W1 was calculated and used as the ratio of the mass of the elastic fibers contained in the bonding yarn to the mass of the non-elastic fibers contained in the front or back fabric.

[0027] (6) The ratio of the fineness of the elastic fibers contained in the bonding yarn to the fineness of the inelastic fibers contained in the surface fabric or back fabric (referred to as "fineness ratio" in the table). The fineness of the inelastic fibers contained in the surface fabric and the inelastic fibers contained in the back fabric, which were collected in (5) above, was measured by applying a load of assumed fineness (dtex) × 0.09 g. The one with the higher fineness was designated as F1 (dtex), and the fineness of the elastic fibers contained in the bonding yarn in the unloaded state was designated as F2 (dtex). The ratio value F2 / F1 of F1 was calculated and used as the ratio value of the fineness of the elastic fibers contained in the bonding yarn to the fineness of the inelastic fibers contained in the surface fabric or the back fabric.

[0028] (7) The ratio of the length of elastic fibers contained in the bonding yarn to the length of inelastic fibers contained in the ground fabric of the front or back surface (referred to as "yarn length ratio" in the table). The lengths of the inelastic fibers contained in the surface fabric and the inelastic fibers contained in the back fabric, which were collected in (5) above, were measured by applying a load of assumed fineness (dtex) × 0.09 g. The longer length was defined as L1 (mm), and the length of the elastic fibers contained in the bonding yarn in the unloaded state was defined as L2 (mm). The ratio value L2 / L1 to L1 was calculated and this was taken as the ratio of the length of the elastic fibers contained in the bonding yarn to the length of the inelastic fibers contained in the surface fabric or back fabric.

[0029] [Example 1] Using a 40-gauge double circular knitting machine, as shown in the knitting structure diagram in Figure 1, 33 decitex 6 filaments of nylon (indicated as "Ny" in the table) were fed from yarn feed ports F1 and F4 to form the front base fabric, 120 / - cotton (indicated as "Co" in the table) was fed from yarn feed ports F2 and F5 to form the back base fabric, and 22 decitex polyurethane (indicated as "Pu" in the table) was fed from yarn feed ports F3 and F6 to form the tuck fabric, and the raw fabric was knitted. The knitted raw fabric was relaxed and scouring using a continuous water-based relax / scouring machine, and then pre-set at 185°C for 1 minute. The cotton was reactive dyed and the nylon was acid-dyed using a liquid flow dyeing machine, and the final set was performed at 160°C for 1 minute to obtain the knitted fabric. The resulting knitted fabric has a weight composition of 55% cotton, 38% nylon, and 7% polyurethane, with a weight of 105 g / m². 2 Thickness 0.66mm, breathability 255cm 3 / cm 2 ·s, bending rigidity 0.0031 cN·cm 2 The result was / cm. The results are shown in Table 1 below.

[0030] [Example 2] Using a 40-gauge double circular knitting machine, as shown in the knitting structure diagram in Figure 1, the fabric was knitted by feeding 6 filaments of nylon 33 decitex as the front base fabric from yarn feed ports F1 and F4 to form a jersey knit, feeding 36 filaments of cationic dyeable polyester (indicated as "CDPe" in the table) 33 decitex as the back base fabric from yarn feed ports F2 and F5 to form a jersey knit, and feeding 22 decitex polyurethane as the bonding yarn from yarn feed ports F3 and F6 to form a tuck fabric. The knitted fabric was relaxed and scouring using a continuous water-based relax / scouring machine, and then pre-set at 185°C for 1 minute. The cationic dyeable polyester and the nylon were acid-dyed using a jet dyeing machine, and the final set was performed at 160°C for 1 minute to obtain the knitted fabric. The resulting knitted fabric has a weight composition of 46% nylon, 45% cationic dyeable polyester, and 9% polyurethane, with a weight of 87 g / m². 2 Thickness 0.55mm, air permeability 453cm² 3 / cm 2· s, bending rigidity 0.0016 cN·cm 2 The result was / cm. The results are shown in Table 1 below.

[0031] [Example 3] Using a 28-gauge double circular knitting machine, as shown in the knitting structure diagram in Figure 1, cotton 80 / - was fed from yarn feed ports F1 and F4 to form the front base structure to create a jersey knit, cupro (referred to as "Cu" in the table) short fibers 60 / - was fed from yarn feed ports F2 and F5 to form the back base structure to create a jersey knit, and polyurethane 33 decitex was fed from yarn feed ports F3 and F6 to form a tuck structure to create a tuck fabric. The knitted fabric was relaxed and scouring using a continuous water-based relax / scouring machine, and then pre-set at 185°C for 1 minute. The cotton and cupro were reactive dyed using a jet dyeing machine, and a final set was performed at 160°C for 1 minute. The resulting knitted fabric had a cupro yarn weight ratio of 52%, a cotton yarn weight ratio of 40%, a polyurethane yarn weight ratio of 8%, and a weight of 173g / m². 2 Thickness 0.82mm, breathability 144cm 3 / cm 2 ·s, bending rigidity 0.0076 cN·cm 2 The result was / cm. The results are shown in Table 1 below.

[0032] [Example 4] The knitted fabric was prepared in the same manner as in Example 3, except that the amount of elastic fiber supplied was increased to knit the raw fabric so that the length of the bonding yarn was 1.6 times longer. The resulting knitted fabric had a weight composition of 50% cupro, 38% cotton, and 12% polyurethane, with a weight of 181 g / m². 2 Thickness 1.23mm, breathability 138cm 3 / cm 2 / sec, bending stiffness 0.0130 cN·cm 2 The result was / cm. The results are shown in Table 1 below.

[0033] [Comparative Example 1] Using a 26-gauge double circular knitting machine, as shown in the knitting structure diagram in Figure 2, polyester (indicated as "Pe" in the table) false twist yarn 72 decitex 72 filaments was fed from yarn feed ports F1, F4, F6, F8, F10, F13, F15, and F17 to form the front base fabric, polyester false twist yarn 72 decitex 72 filaments was fed from yarn feed ports F2, F5, F7, F9, F11, F14, F16, and F18 to form the back base fabric, and polyurethane 78 decitex was fed from yarn feed ports F3 and F12 to form the tuck fabric, and the raw fabric was knitted. The knitted raw fabric was relaxed and scouring using a continuous water-based relax / scouring machine, and then pre-set at 185°C for 1 minute. Polyester was dispersed dyed using a jet dyeing machine, and a final set was performed at 160°C for 1 minute to obtain a knitted fabric. The resulting knitted fabric had a polyester yarn weight of 90%, a polyurethane yarn weight of 10%, and a basis weight of 179 g / m². 2 Thickness 1.81mm, breathability 55cm 3 / cm 2 ·s, bending rigidity 0.1057 cN·cm 2 The result was / cm. The results are shown in Table 1 below.

[0034] [Comparative Example 2] Using a 28-gauge double circular knitting machine, a jersey knit was created by feeding 84 decitex 72 filaments of polyester false twist yarn and 84 decitex 36 filaments of cationic dyeable polyester false twist yarn in a 20:4 interweave for the front side, and 84 decitex 36 filaments of cationic dyeable polyester false twist yarn for the back side, forming a jersey knit. A tuck knit was then created by feeding polyurethane 78 decitex as the bonding yarn. The knitted fabric was relaxed and scouring using a continuous water-based relax / scouring machine, followed by pre-setting at 185°C for 1 minute. Cationic dyeing of the cationic dyeable polyester was performed using a jet dyeing machine, and a final set was performed at 160°C for 1 minute to obtain the knitted fabric. The obtained knitted fabric had a composition of 53% cationic dyeable polyester by weight, 38% polyester by weight, 9% polyurethane by weight, and a basis weight of 164 g / m². 2 Thickness 1.45mm, breathability 147cm 3 / cm2 ·s, bending rigidity 0.0394 cN·cm 2 The result was / cm. The results are shown in Table 1 below.

[0035] [Comparative Example 3] Using a 40-gauge double circular knitting machine, as shown in the structure diagram in Figure 1, a bare jersey was formed by plating nylon 22 decitex 24 filaments and polyurethane 22 decitex from yarn feed ports F1 and F4 as the ground structure for the face, a bare jersey was formed by plating cationic dyeable polyester 22 decitex 24 filaments and polyurethane 22 decitex from yarn feed ports F2 and F5 as the ground structure for the back, and a tuck structure was formed by feeding polyurethane 17 decitex from yarn feed ports F3 and F6 as the bonding yarn. The knitted fabric was then relaxed and scouring using a continuous water-based relax / scouring machine, followed by pre-setting at 185°C for 1 minute. Cationic dyeing of cationic dyeable polyester and acid dyeing of nylon were performed in a liquid flow dyeing machine, and a final set was performed at 160°C for 1 minute to obtain the knitted fabric. The resulting knitted fabric has a weight composition of 34% nylon, 34% cationic dyeable polyester, and 32% polyurethane, with a weight of 151 g / m². 2 Thickness 0.42mm, breathability 51cm 3 / cm 2 ·s, bending rigidity 0.0192 cN·cm 2 The result was / cm. The results are shown in Table 1 below.

[0036] [Comparative Example 4] Using an 18-gauge double circular knitting machine, as shown in the structure diagram in Figure 1, a jersey knit was formed by feeding 30 / - cotton yarn from yarn feed ports F1 and F4 as the front base structure, a jersey knit was formed by feeding 167 decitex 144 filaments of polyester from yarn feed ports F2 and F5 as the back base structure, and a tucked knit was formed by feeding 56 decitex 24 filaments of polyester false twist yarn from yarn feed ports F3 and F6 as the bonding yarn. The knitted fabric was then relaxed and scouring using a continuous water-based relax / scouring machine, followed by pre-setting at 185°C for 1 minute. The cotton was reactive dyed and the polyester was disperse dyed using a jet dyeing machine, and a final set was performed at 160°C for 1 minute to obtain the knitted fabric. The obtained knitted fabric had a polyester yarn weight ratio of 60%, a cotton yarn weight ratio of 40%, and a basis weight of 286 g / m². 2 Thickness 1.09mm, breathability 87cm 3 / cm 2 ·s, bending rigidity 0.1405 cN·cm 2 The result was / cm. The results are shown in Table 1 below.

[0037] [Table 1] [Industrial applicability]

[0038] The knitted fabric according to the present invention is flexible and can therefore be suitably used for outerwear, innerwear, and sportswear. [Explanation of symbols]

[0039] 1 Table of Ground Organization 2 Underground organizations

Claims

1. A knitted fabric comprising a front base fabric, a back base fabric, and a bonding yarn connecting the front base fabric and the back base fabric, wherein the front base fabric and the back base fabric are composed solely of non-elastic fibers, and the bonding yarn contains elastic fibers, and the formula is as follows: Bonding yarn density = (Number of courses in which bonding yarn is knitted into one complete fabric) / (Total number of courses in one complete fabric) The knitting density of the bonding yarn, as defined by [the specified method], is 1 / 3 or more, and the breathability of the knitted fabric is 70 cm. ３ / cm ２ - is s or greater, and The ratio of the mass of elastic fibers contained in the bonding yarn to the mass of inelastic fibers contained in the base fabric of the front or back is 0.02 to 0.40, and A knitted fabric in which the fineness of the non-elastic fiber is 150 dtex or less.

2. The breathability of the knitted fabric is 100 cm. ３ / cm ２ - The knitted fabric according to claim 1, wherein the value is s or greater.

3. The knitted fabric according to claim 1 or 2, wherein the ratio of the mass of elastic fibers contained in the bonding yarn to the mass of non-elastic fibers contained in the base fabric of the table or the base fabric of the reverse side is 0.02 to 0.

16.

4. The knitted fabric according to claim 1 or 2, wherein the ratio of the fineness of the elastic fibers contained in the bonding yarn to the fineness of the non-elastic fibers contained in the ground fabric of the table or the ground fabric of the reverse side is 0.12 to 0.

78.

5. The knitted fabric according to claim 1 or 2, wherein the bonding yarn is composed solely of elastic fibers.

6. The knitted fabric according to claim 1 or 2, wherein the bonding yarn bonds the front ground fabric and the back ground fabric only with a tuck structure.

7. The knitted fabric according to claim 1 or 2, wherein the knitting density of the bonding yarn is 1 / 1.

8. The knitted fabric according to claim 1 or 2, wherein the thickness of the knitted fabric is 1.00 mm or less.

9. The knitted fabric according to claim 1 or 2, wherein the fineness of the elastic fiber is 50 dtex or less.

10. The knitted fabric according to claim 3, wherein the bonding yarn is composed solely of elastic fibers, and the bonding yarn bonds the front fabric and the back fabric only with a tuck structure.

11. The knitted fabric according to claim 1 or 2, which is a weft knitted fabric.

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