Weft knitted fabric

Abstract

To provide a weft knitted fabric that has good touch feeling and hardly causes fray or curl even without applying post processing on a cut end.SOLUTION: A weft knitted fabric of the embodiment is formed of a ground texture that is an interlock texture, basically interlock texture, or a double knitted texture in which only one surface is a rib texture. A raising yarn 2 is knitted in 25 to 100% of all loops of the ground texture at least on either one of a front surface and a rear surface. An elastic yarn 3 is knitted in 40 to 100% of all loop positions on both front and rear surfaces.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a weft knitted fabric using a brushed yarn.

Background Art

[0002] As soft and comfortable fabrics, brushed fabrics such as velour, corduroy, suede, and fleece are known. Generally, a brushed fabric is composed of a knitted fabric into which a brushed yarn (brush yarn) is knitted. As such a knitted fabric, a weft knitted fabric of a structure called brush interlock as described in Patent Document 1 is known. Brush interlock is a structure in which a yarn for knitting a normal interlock is fed to a dial needle and a cylinder needle, and a brushed yarn is fed only to, for example, the dial needle and knitted.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a knitted fabric such as brush interlock, if it is left as it is after cutting, fraying occurs from the cut end, or curling occurs near the cut end. In order to prevent this, usually, post-treatment such as folding back the cut portion and sewing it, or wrapping the cut end with an appliqué is performed. However, the post-treatment is laborious, and there is a problem that the post-treated portion becomes thick or hard.

[0005] Therefore, an object of the present invention is to provide a weft knitted fabric that has a good texture and is less likely to fray or curl even without post-treatment at the cut end.

Means for Solving the Problems

[0006] The present invention includes the embodiments shown below.

[0007] [1]In a weft knitted fabric where the ground tissue is an interlock structure, a structure based on interlock, or a double-sided weft knitted fabric with ribs only on one side, on at least one of the front and back sides, a raised yarn is knitted into 25 to 100% of all the loops of the ground tissue, and an elastic yarn is knitted into 40 to 100% of all the loop positions on both the front and back sides. A weft knitted fabric characterized by this.

[0008] [2] The weft knitted fabric according to [1], wherein the ground tissue is made of non-elastic yarn.

[0009] [3] The density is 100 courses / inch or more and 50 wales / inch or more, the fineness of the non-elastic yarn is 13 dtex to 74 dtex, and the fineness of the elastic yarn is 17 dtex to 56 dtex. The weft knitted fabric according to [2].

[0010] [4] The weft knitted fabric according to [2] or [3], wherein the fineness ratio of the elastic yarn to the non-elastic yarn is 1.0:0.4 to 1.0:2.9.

[0011] [5] The basis weight / thickness is 0.3×10 -3 g / mm 3 or less. The weft knitted fabric according to any one of [1] to [4].

Advantages of the Invention

[0012] The weft knitted fabric of the above embodiment has a good texture and is less likely to fray or curl even without post-treatment at the cut ends.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Modes for Carrying Out the Invention

[0014] Embodiments will be described with reference to the drawings. Note that the embodiments described below are merely examples, and those that are appropriately modified without departing from the gist of the present invention are included in the scope of the present invention.

[0015] Hereinafter, a circular knitted fabric, which is a type of weft knitted fabric, will be described.

[0016] The circular knitted fabric of the present embodiment is knitted by a double knitting machine equipped with dial needles and cylinder needles, and a raised yarn (also referred to as a brush yarn) and an elastic yarn are knitted into a ground structure made of inelastic yarn. Knitting diagrams of such circular knitted fabrics are shown in FIGS. 1 to 3. In each figure, reference numeral 1 denotes an inelastic yarn, reference numeral 2 denotes a raised yarn, and reference numeral 3 denotes an elastic yarn.

[0017] The inelastic yarn 1 is a ground knitting yarn that forms a ground structure. The ground structure made of the inelastic yarn 1 is an interlock structure, a structure based on interlock, or a double-sided knitting structure with ribs only on one side. Here, the interlock structure is the structure shown by the solid line in FIG. 1, and is a structure in which rib knitting is overlapped in two layers on the front and back and knitted together. Also, the structure based on interlock means a structure in which the inelastic yarn 1 fed from two yarn supply ports (feeders) forms an interlock structure, and further, the inelastic yarn 1 fed from another yarn supply port forms a loop (knit stitch). Examples of the structure based on interlock include the structures shown by the solid lines in FIGS. 2 and 3. The structure shown by the solid line in FIG. 2 is a so-called mock rody structure. The structure shown by the solid line in FIG. 3 will be referred to as a cylinder half structure. Also, the double-sided knitting structure with ribs only on one side means that among the double-sided knitting structures, one side is a rib structure and the other side is a structure other than a rib.

[0018] The raised yarn 2 is knitted into 25 to 100% of all the loops of the ground tissue on at least one of the front and back sides of the circular knitted fabric. Here, the raised yarn 2 being knitted in means that the raised yarn 2 is knitted to form loops at the same positions as the loops of the ground tissue. Also, the front and back sides of the circular knitted fabric refer to the dial side (the side knitted by the dial needles) and the cylinder side (the side knitted by the cylinder needles). And the raised yarn 2 being knitted into 25 to 100% of all the loops of the ground tissue on a specific side means that the raised yarn 2 is knitted into 25 to 100% of all the loops formed by the needles for knitting that side.

[0019] In the circular knitted fabric, the raised yarn 2 is raised. The loops of the raised yarn 2 may or may not be cut. When the loops of the raised yarn 2 are not cut, the length of one loop of the raised yarn 2 is 1.5 to 2.0 times the length of one loop of the inelastic yarn 1. The side where the raised yarn 2 is knitted is called the raised side.

[0020] Specific examples of the knitting of the raised yarn 2 are shown in FIGS. 1 to 3. In FIG. 1, yarn is fed only to the dial needles from all the yarn feeding ports (yarn feeding port 1 and yarn feeding port 2). Therefore, in the circular knitted fabric of FIG. 1, the ratio of the loops of the raised yarn 2 to all the loops of the ground tissue on the dial side is 100%, and the ratio of the loops of the raised yarn 2 to all the loops of the ground tissue on the cylinder side is 0%. Also, the ratio of the loops of the raised yarn 2 to all the loops of the ground tissue on both the front and back sides is 50%.

[0021] Also, in FIG. 2, the raised yarn 2 is fed only to the dial needles of yarn feeding port 1 and yarn feeding port 4. Therefore, in the circular knitted fabric of FIG. 2, the ratio of the loops of the raised yarn 2 to all the loops of the ground tissue on the dial side is 50%, and the ratio of the loops of the raised yarn 2 to all the loops of the ground tissue on the cylinder side is 0%. Also, the ratio of the loops of the raised yarn 2 to all the loops of the ground tissue on both the front and back sides is 25%.

[0022] Also, in Fig. 3, the fleece yarn 2 is fed only to the dial needles of the yarn feed port 1 and the yarn feed port 3. Therefore, in the circular knitted fabric of Fig. 3, on the dial side surface, the ratio of the loops of the fleece yarn 2 to all the loops of the ground fabric is 100%, and on the cylinder side surface, the ratio of the loops of the fleece yarn 2 to all the loops of the ground fabric is 0%. Also, the ratio of the loops of the fleece yarn 2 to all the loops of the ground fabric on both the front and back sides is 33% (the number of loops of the fleece yarn 2 / the total number of loops on both the front and back sides = 2 / 6).

[0023] Although not shown in the figure, depending on the feeding method of the fleece yarn 2, the ratio of the loops of the fleece yarn 2 to all the loops of the ground fabric on each of the dial side and the cylinder side surfaces can be adjusted. For example, in an interlock structure, when the fleece yarn 2 is fed from all the yarn feed ports and is fed to both the dial needles and the cylinder needles, the ratio of the loops of the fleece yarn 2 to all the loops of the ground fabric becomes 100% on each of the dial side and the cylinder side surfaces. Also, on the dial side surface of the circular knitted fabric in Fig. 1 or Fig. 3, by knitting the fleece yarn 2 only into a part of the loops of the ground fabric, the ratio of the loops into which the fleece yarn 2 is knitted can be made less than 100%.

[0024] The elastic yarn 3 is knitted into 40 to 100% of all the loop positions (the loop position means the position of the loops of the ground fabric) on both the front and back sides of the circular knitted fabric. Here, that the elastic yarn 3 is knitted into the loop position of the ground fabric means that at the loop position of the ground fabric, the elastic yarn 3 also forms a loop or the elastic yarn 3 is inserted without forming a loop.

[0025] One method of knitting the elastic yarn 3 is the combined yarn knitting with the inelastic yarn 1 and the elastic yarn 3. By attaching the elastic yarn 3 to all the inelastic yarns 1, the elastic yarn 3 can be knitted into all the loops of the ground fabric.

[0026] Further, by feeding the inelastic yarn 1 and the elastic yarn 3 to some of the yarn feeding ports and feeding only the inelastic yarn 1 to the remaining yarn feeding ports without feeding the elastic yarn 3, it is possible to form loops of the combined yarn knitting with the inelastic yarn 1 and the elastic yarn 3 and loops of the inelastic yarn 1 that do not contain the elastic yarn 3. Thereby, the ratio of the number of loops into which the elastic yarn 3 is knitted to the total number of loops of the ground tissue on both sides of the circular knitted fabric can be made less than 100%.

[0027] Figs. 1 to 3 are diagrams in which all the loops of the ground tissue are loops of the combined yarn knitting. In Figs. 1 to 3, in addition to the inelastic yarn 1, the elastic yarn 3 is fed to all the yarn feeding ports, and thereby the elastic yarn 3 is knitted into all the loops of the ground tissue on both sides of the circular knitted fabric. However, by feeding the inelastic yarn 1 and the elastic yarn 3 to some of the yarn feeding ports and feeding only the inelastic yarn 1 to the remaining yarn feeding ports without feeding the elastic yarn 3, the ratio of the number of loops into which the elastic yarn 3 is knitted to the total number of loops of the ground tissue on both sides of the circular knitted fabric can also be made less than 100%.

[0028] Also, although not shown, as another method of knitting the elastic yarn 3, there is a method of inserting the elastic yarn into the ground tissue made of the inelastic yarn (specifically, inserting it like a so-called inlay). In this method, by feeding the elastic yarn to all the yarn feeding ports, the elastic yarn can be knitted into all the loops of the ground tissue. Also, by feeding the elastic yarn only to some of the yarn feeding ports, the ratio of the number of loops into which the elastic yarn is knitted to the total number of loops of the ground tissue on both sides of the circular knitted fabric can be made less than 100%.

[0029] As the inelastic yarn 1, any of synthetic fiber yarns such as nylon yarn, polyethylene yarn, and polyester yarn, regenerated fiber yarns such as rayon, and natural fiber yarns such as cotton yarn may be used. The preferred fineness of the inelastic yarn is 13 dtex(T) to 74 dtex(T). Also, the type of the raised yarn 2 is not limited, and it may be a synthetic fiber yarn, a natural fiber yarn, an elastic yarn, or an inelastic yarn. Examples of the elastic yarn 3 include bare spandex and FTY (Filament Twisted Yarn). Note that FTY is a product in which another yarn such as a polyester yarn or a nylon yarn is wound around a core yarn of polyurethane. When the elastic yarn 3 is bare spandex, its preferred fineness is 17 dtex(T) to 56 dtex(T). Also, when FTY is used, the preferred fineness of the polyurethane core yarn contained in FTY is 17 dtex(T) to 56 dtex(T).

[0030] The fineness ratio of the elastic yarn 3 to the inelastic yarn 1, that is, the fineness of the elastic yarn: the fineness of the inelastic yarn, is preferably 1.0:0.4 to 1.0:2.9. A more preferred fineness ratio of the elastic yarn to the inelastic yarn is 1.0:0.6 to 1.0:1.5. When FTY is included in the circular knitted fabric, the finenesses of the elastic yarn (polyurethane core yarn) and the inelastic yarn that constitute FTY are measured, respectively, and the respective finenesses are used for the calculation of the fineness ratio.

[0031] Also, the preferred mixing ratio (weight ratio) of the elastic yarn 3 to the inelastic yarn 1 in the entire circular knitted fabric is elastic yarn 3:inelastic yarn 1 = 10:90 to 40:60. When FTY is included in the circular knitted fabric, the respective usage amounts of the elastic yarn (polyurethane core yarn) and the inelastic yarn in FTY are used for the calculation of the mixing ratio.

[0032] The circular knitted fabric is first knitted by a circular knitting machine. The gauge of the circular knitting machine used is 28 gauge or more, preferably 32 gauge or more, and more preferably 40 gauge or more. Also, the circular knitting machine used is a double knitting machine. The needle arrangement method in the double knitting machine is determined according to the fabric to be knitted.

[0033] Next, the knitted circular fabric that has been knitted is treated with a treatment liquid containing sulfonate and heat-set at a predetermined temperature (for example, 195°C to 205°C). Further, the knitted circular fabric after heat-setting is dyed.

[0034] Next, a raising treatment is performed to raise the raised yarn 2 of the knitted circular fabric and bring it out to the surface of the knitted circular fabric. The raising treatment is preferably performed by a known raising machine such as a card clothing raising machine or an emery raising machine. As the raising treatment, either cut raising that cuts the loop of the raised yarn 2 or loop raising that does not cut the loop of the raised yarn 2 may be performed.

[0035] Next, the knitted circular fabric after raising is heat-set at a predetermined temperature (for example, 150°C to 170°C). When this heat-setting is completed, the knitted circular fabric is completed.

[0036] The completed knitted circular fabric preferably has an elongation rate of 130% or more. The elongation rate is measured by the following method. As test pieces, three test pieces of 16 cm in length and 2.5 cm in width and three test pieces of 2.5 cm in length and 16 cm in width are each cut out from the knitted circular fabric. The test piece with a length of 16 cm in the longitudinal direction is used to measure the elongation rate in the longitudinal direction, and the test piece with a length of 16 cm in the transverse direction is used to measure the elongation rate in the transverse direction. The measurement is performed using a known constant-speed elongation tensile testing machine. Specifically, the test piece is gripped with a chuck jig in which the test piece gripping part has a tooth shape, with an upper gripping length of 2.5 cm, a lower gripping length of 3.5 cm, and a chuck interval of 10 cm. Then, the test piece is pulled at a pulling speed of 30 cm / min, and the elongation rate at a load of 14.7 N is measured. The elongation rates of the three test pieces in the same direction are measured, and the average value is taken as the elongation rate in that direction.

[0037] In addition, the completed circular knitted fabric preferably has a recovery rate of 90% or more. The recovery rate is measured by the following method. First, as test pieces, a test piece of 16 cm in length and 2.5 cm in width, and a test piece of 2.5 cm in length and 16 cm in width are cut out from the circular knitted fabric. The test piece of 16 cm in the length direction is used for measuring the recovery rate in the length direction, and the test piece of 16 cm in the width direction is used for measuring the recovery rate in the width direction. The cut-out test pieces are grasped in the same testing machine as when measuring the elongation rate, in the same manner as when measuring the elongation rate. Then, the test pieces are extended to 80% of the chuck interval at a tensile speed of 30 cm / min and then recovered three times repeatedly to draw an elongation recovery curve. The residual elongation is read from the elongation recovery curve, and the recovery rate is calculated by the following formula.

[0038] Recovery rate (%) = (L - L0) / L × 100 (L is 80% of the set elongation, and L0 is the residual elongation) In addition, the density of the knitting structure in the completed circular knitted fabric is preferably 100 courses / inch or more and 50 wales / inch or more.

[0039] In addition, the thickness of the completed circular knitted fabric is preferably 0.8 mm or more. Here, the thickness of the circular knitted fabric is the average thickness measured at five positions in the width direction (the transverse direction) so that no force is applied to the circular knitted fabric. In addition, the basis weight of the completed circular knitted fabric is, for example, 160 g / m 2 ~220 g / m 2 is. In addition, the basis weight / thickness is preferably 0.3×10 -3 g / mm 3 or less, and more preferably 0.10×10 -3 ~0.25×10 -3 g / mm 3 is even more preferable.

[0040] Next, the effects of this embodiment will be described. According to this embodiment, there is an effect that the fabric feel is good and fraying and curling are less likely to occur even without post-treatment on the cut ends.

[0041] Specifically, in the circular knitted fabric of the present embodiment, at least one of the front and back surfaces is a fleece surface. On the fleece surface, since the fleece yarn is knitted into 25 to 100% of all the loops of the ground weave, the texture of the fleece surface is improved.

[0042] Also, in the circular knitted fabric of the present embodiment, the ground weave made of the inelastic yarn 1 is an interlock weave, a weave based on interlock, or a double-sided weave with ribs only on one side, and the inelastic yarn 1 forms the same or substantially the same weave on both the front and back surfaces of the circular knitted fabric. Therefore, the circular knitted fabric is less likely to curl even without post-treatment on the cut ends.

[0043] Moreover, since the elastic yarn 3 is knitted into 40 to 100% of all the loop positions on both the front and back surfaces of the circular knitted fabric of the present embodiment, even if a force that causes curling occurs at the cut ends or the like, a force that repels that force will be generated from the elastic yarn 3. Therefore, the circular knitted fabric is less likely to curl even without post-treatment on the cut ends. Also, since the elastic yarn 3 knitted into 40 to 100% of all the loop positions on both the front and back surfaces tightens the loops, fraying is less likely to occur at the cut ends even without post-treatment on the cut ends. When the elastic yarn 3 is knitted into all the loop positions on both the front and back surfaces, fraying and curling are particularly unlikely to occur.

[0044] Also, when the inelastic yarn 1 and the elastic yarn 3 are knitted as supplementary yarns on both the front and back surfaces of the circular knitted fabric, loops composed of the inelastic yarn 1 and the elastic yarn 3 are formed on both the front and back surfaces, and in this case, the tension balance between the front and back surfaces of the circular knitted fabric is improved and curling is less likely to occur. In this case, when the ratio of the number of loops composed of the inelastic yarn 1 and the elastic yarn 3 to the total number of all loops is the same on both the front and back surfaces of the circular knitted fabric, the tension balance between the front and back surfaces of the circular knitted fabric is particularly improved and curling is less likely to occur.

[0045] Also, as described above, since the inelastic yarn 1 forms the same or substantially the same texture on both the front and back sides of the circular knitted fabric, the tension balance is good between the front and back of the fabric structure made of the inelastic yarn 1. However, when the raised yarn is knitted only on one side of the circular knitted fabric, the balance is slightly disrupted. However, even in such a case, since the elastic yarn 3 is knitted into 40 to 100% of all the loop positions on both the front and back sides and a force acts to return the circular knitted fabric from becoming likely to curl, the circular knitted fabric is less likely to curl. In particular, when the fineness ratio of the elastic yarn 3 to the inelastic yarn 1, that is, the fineness of the elastic yarn: the fineness of the inelastic yarn is 1.0:0.4 to 1.0:0.9, the circular knitted fabric is less likely to curl due to the action of the elastic yarn 3.

[0046] Moreover, in the circular knitted fabric of the present embodiment, since the elastic yarn 3 is knitted into 40 to 100% of all the loop positions on both the front and back sides, the elongation rate and the recovery rate are high. That is, the circular knitted fabric of the present embodiment is easy to stretch and easy to return after being stretched.

[0047] Also, if the fineness ratio of the elastic yarn 3 to the inelastic yarn 1 (that is, the fineness of the elastic yarn: the fineness of the inelastic yarn) is 1.0:0.4 to 1.0:2.9, fraying and curling are prevented without the ratio of the elastic yarn 3 being too low, and conversely, the texture of the circular knitted fabric does not deteriorate without the ratio of the elastic yarn 3 being too high. Further, if the fineness ratio of the elastic yarn 3 to the inelastic yarn 1 is 1.0:0.6 to 1.0:1.5, fraying and curling are less likely to occur and the texture is better.

[0048] Also, if the mixing ratio (weight ratio) of the elastic yarn 3 to the inelastic yarn 1 in the entire circular knitted fabric is elastic yarn 3: inelastic yarn 1 = 10:90 to 40:60, the circular knitted fabric has appropriate elasticity and is easy to knit.

[0049] Moreover, the circular knitted fabric of the present embodiment has a high knitting density, specifically 100 courses / inch or more and 50 wales / inch or more. Such a high density is realized by the fact that a more coarsely knitted circular knitted fabric shrinks due to the shrinkage of the elastic yarn 3 and the influence of processing such as heat setting after knitting. This circular knitted fabric has a thickness due to shrinking in this way to become a high density.

[0050] Here, a normal circular knitted fabric creates thickness by using thick yarns, but in the circular knitted fabric of this embodiment, thin yarns are used. Specifically, the fineness of the inelastic yarn 1 is 13 dtex (T) to 74 dtex (T), and the fineness of the elastic yarn 3 is 17 dtex (T) to 56 dtex (T). Since such thin yarns are used, the circular knitted fabric of this embodiment is light despite having thickness. Here, if the areal density / thickness is 0.3×10 -3 g / mm 3 or less, people can fully feel that it is light despite having thickness. If the areal density / thickness is 0.10×10 -3 ~0.25×10 -3 g / mm 3 the feeling becomes even more prominent.

[0051] Thus, the circular knitted fabric of this embodiment is special in that it is easy to stretch, easy to return, light, and has thickness. In such a special circular knitted fabric, as described above, fraying and curling are less likely to occur.

[0052] Next, examples and comparative examples will be described. Tables 1 to 3 show the characteristics and experimental results of the circular knitted fabrics of Examples 1 to 6 and Comparative Example 1.

[0053] The circular knitted fabrics of Examples 1 to 4 have the structure shown in FIG. 3. In this structure, the inelastic yarn 1 and the elastic yarn 3 are fed to all the yarn feeding ports, and the raising yarn 2 is fed only to the dial needles of the yarn feeding ports 1 and 3. Therefore, the elastic yarn 3 is knitted into all the loops of the ground structure on both the front and back sides of the circular knitted fabric. Also, on the dial side, the ratio of the loops of the raising yarn 2 to all the loops of the ground structure is 100%, on the cylinder side, the ratio of the loops of the raising yarn 2 to all the loops of the ground structure is 0%, and on both the front and back sides, the ratio of the loops of the raising yarn 2 to all the loops of the ground structure is 33% (number of loops of the raising yarn 2 / total number of loops on both the front and back sides = 2 / 6).

[0054] In addition, the circular knitted fabrics of Examples 5 and 6 are composed of the texture shown in Fig. 2. Non-elastic yarn 1 and elastic yarn 3 are fed to all the yarn feeding ports, and the fluff yarn 2 is fed only to the dial needles of the yarn feeding ports 1 and 4. Therefore, the elastic yarn 3 is knitted into all the loops of the ground texture on both the front and back sides of the circular knitted fabric. Also, the ratio of the loops of the fluff yarn 2 to all the loops of the ground texture on the dial side is 50%, the ratio of the loops of the fluff yarn 2 to all the loops of the ground texture on the cylinder side is 0%, and the ratio of the loops of the fluff yarn 2 to all the loops of the ground texture on both the front and back sides is 25%.

[0055] In addition, in Tables 1 to 3, NY means nylon yarn, PU means bare spandex, and PE means polyethylene yarn. Nylon yarn and polyethylene yarn are non-elastic yarns.

[0056] In addition, in the description of the yarn usage in Tables 1 to 3, there are descriptions such as "NY 17T-12 SD processed yarn" and "NY 22T-24 FD processed yarn". In this description, 12 and 24 mean the filament count. For example, the number 12 means that 12 yarns are twisted together to form one yarn. Also, SD (semi-dull) and FD (full dull) represent the glossiness. SD has a glossier feeling than FD.

[0057] As an experiment, the elongation rate, recovery rate, resistance to fraying, and curling were measured. The measurement methods for the elongation rate and recovery rate are as described above.

[0058] Regarding the resistance to fraying, the tester cut the circular knitted fabric and checked the fraying state of the cut ends, and evaluated them as A, B, C, D, and E in order from the one with less fraying.

[0059] Regarding curling, three test pieces with a length of 16 cm and a width of 2.5 cm and three test pieces with a length of 2.5 cm and a width of 16 cm were prepared as test pieces in the longitudinal direction and test pieces in the transverse direction, respectively. Each test piece was grasped with a chuck (upper grasping length: 2.5 cm, lower grasping length: 3.5 cm, grasping interval: 10 cm), a load of 500 g was applied for 10 seconds, then the load was removed, and the test piece was left on a horizontal table for 5 minutes. After leaving it, the length of the part installed on the table at the central part between the grasps (at a position 5 cm from the upper grasping part) (this part curls) was measured, and this length was set as L’ cm, and the curling rate was obtained by the following formula. In addition, the 2.5 that appears twice in the following formula is the width of the sample before applying the load, and the unit is cm. L’ is the length of this 2.5 cm part after the above-mentioned leaving.

[0060] Curling rate (%) = (2.5 - L’) / 2.5 × 100 In addition, Tables 1 to 3 show the average of the curling rates of the three test pieces.

[0061]

Table 1

[0062]

Table 2

[0063]

Table 3

[0064] Various changes can be made to the above embodiments. For example, the inelastic yarn of the above embodiment can be changed to FTY (that is, the ground fabric can be made of FTY).

Explanation of reference signs

[0065] 1…Inelastic yarn, 2…Fuzzy yarn, 3…Elastic yarn

Claims

1. In a weft knitted fabric where the ground fabric is an interlock fabric, a fabric based on interlock, or a double-sided knitting fabric with ribs only on one side, on at least one of the front and back sides, a raised yarn is knitted into 25 to 100% of all the loops of the ground fabric, and an elastic yarn is knitted into 40 to 100% of all the loop positions on both the front and back sides. A weft knitted fabric characterized by this.

2. The weft knitted fabric according to Claim 1, wherein the ground fabric is made of non-elastic yarn.

3. The density is 100 courses / inch or more and 50 wales / inch or more, the fineness of the non-elastic yarn is 13 dtex to 74 dtex, and the fineness of the elastic yarn is 17 dtex to 56 dtex. The weft knitted fabric according to Claim 2.

4. The weft knitted fabric according to Claim 2 or 3, wherein the fineness ratio of the elastic yarn to the non-elastic yarn is 1.0:0.4 to 1.0:2.

9.

5. Areal density / thickness is 0.3 × 10 －３ g / mm ３ or less, the weft knitted fabric according to claim 1 or 2.

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