JP2022156969A - Single weft knitted fabric - Google Patents

Abstract

To provide a single weft knitted fabric excellent in burst strength and excellent in wearing such as pleasant feel and easiness to move while being put on.SOLUTION: A single weft knitted fabric has at least a course including a first yarn and a second yarn. The course has a needle loop at which the first yarn and the second yarn are aligned and a sinker loop at which the first yarn and the second yarn are not aligned. At the sinker loop at which the first yarn and the second yarn are not aligned, either one of the first yarn and the second yarn is a welt structure and the other is a tuck structure.SELECTED DRAWING: Figure 8

Description

The present invention relates to a single weft knitted fabric.

The market demands for more comfortable clothes are increasing year by year, and light-weight underwear with excellent touch and texture is required. In order to meet market needs, comfortable clothing has been provided by finer fibers for clothing and higher gauge looms and knitting machines.
However, since thinning the thread reduces the strength of the fabric, the fabric using the thin thread may have a problem of durability in actual use.
Patent Literature 1 below discloses a double circular knitted fabric with high burst strength, which has rib yarns forming tuck stitches on the surface layer side and knit stitches on the back layer side.

JP 2014-214408 A

However, the double circular knitted fabric as described in Patent Document 1 tends to be thick, and if it is knitted only with non-stretchable yarns with priority given to bursting strength, stretchability will be insufficient, and when actually worn I had a problem with movement.
In view of the level of the prior art, the problem to be solved by the present invention is to provide a single weft knitted fabric that is excellent in bursting strength and has excellent wearability such as touch and ease of movement during wear.

The inventors of the present application, as a result of intensive studies and repeated experiments to solve the above problems, unexpectedly found that a single knitted fabric having the following configuration can solve the above problems, and have completed the present invention. It is.

That is, the present invention is as follows.
[1] At least a course including a first thread and a second thread, the course includes a needle loop in which the first thread and the second thread are aligned, and the first thread a sinker loop in which the second yarn is not aligned, and the first yarn and the second yarn are in the sinker loop in which the first yarn and the second yarn are not aligned is a welt structure and the other is a tuck structure.
[2] The single weft knitted fabric according to [1], wherein at least one of the first yarn and the second yarn is an elastic yarn.
[3] The single according to [1] or [2], wherein the ratio of the number of sinker loops in which the first yarn and the second yarn are not aligned to the number of sinker loops in the entire knitted fabric is 25% or more. Weft knitted fabric.
[4] Any one of the above [1] to [3], wherein the first yarn and the second yarn alternately repeat a knit structure and a tuck structure or a welt structure in the weft direction of the knitted fabric. Single weft knitted fabric as described.
[5] Any one of the above [1] to [4], further comprising a third yarn, wherein the third yarn and the first yarn or the second yarn are plated Single weft knitted fabric.
[6] Among the sinker loops in which the first yarn and the second yarn are not aligned, the yarn for knitting the welt structure has a yarn length of 300 mm/100 w or less, according to the above [1] to [5]. A single weft knitted fabric according to any one of the above.
[7] A garment comprising the single weft knitted fabric according to any one of [1] to [6].

The single weft knitted fabric according to the present invention is excellent in bursting strength, and is excellent in wearing feeling such as touch and ease of movement during wearing.

FIG. 4 is an explanatory diagram of a loop state of a knitting method (knit) in the history; FIG. 10 is an explanatory diagram of a loop state of a knitting method (tuck) in the history. It is an explanatory view of the loop state of the knitting method (miss (welt)) in the history. FIG. 4 is an explanatory diagram of the knitted fabric structure of the single knitted fabric in the background. FIG. 4 is an explanatory diagram of the knitted fabric structure of the double knitted fabric in the wavy direction. FIG. 10 is an explanatory diagram of a drawn-together state of the sinker loop portions in the process; FIG. 10 is an explanatory diagram of a drawn-together state of the sinker loop portions in the process; It is an example of the knitting structure of this embodiment. 1 is an example of a knitting diagram of a knitting structure of the present embodiment. FIG. 1 is an example of a knitting diagram of a knitting structure of the present embodiment. FIG. 1 is an example of a knitting diagram of a knitting structure of the present embodiment. FIG. 1 is an example of a knitting diagram of a knitting structure of the present embodiment. FIG. 1 is an example of a knitting diagram of a knitting structure of the present embodiment. FIG. FIG. 10 is an example of a knitting diagram of a knitting structure of a comparative example; FIG. FIG. 10 is an example of a knitting diagram of a knitting structure of a comparative example; FIG. FIG. 10 is an example of a knitting diagram of a knitting structure of a comparative example; FIG. FIG. 10 is an example of a knitting diagram of a knitting structure of a comparative example; FIG. FIG. 10 is an example of a knitting diagram of a knitting structure of a comparative example; FIG. FIG. 10 is an example of a knitting diagram of a knitting structure of a comparative example; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail.
The weft knitted fabric of the present embodiment includes at least a course including a first yarn and a second yarn, the course including a needle loop in which the first yarn and the second yarn are aligned, Having a sinker loop in which the first yarn and the second yarn are not aligned, and in the sinker loop in which the first yarn and the second yarn are not aligned, the first yarn and A single weft knitted fabric in which one of the second yarns has a welt structure and the other has a tuck structure.

In the present embodiment, the row of stitches continuing in the weft direction of the knitted fabric is the course, and the row of stitches continuing in the warp direction of the knitted fabric is the well.
In this embodiment, the single weft knitted fabric, as shown in FIG. It refers to a knitted fabric having one face each, and refers to a weft knitted fabric knitted from a single row of needle beds unless otherwise specified.

A needle loop is a loop formed by drawing a yarn through a knitting needle, and a surface composed of needle loops is called a needle loop surface or a technical face.
For example, in a knitted structure, as shown by the solid line in FIG. 1, a stitch made by drawing a knitting needle is a needle loop (see FIG. 1). Also, in the tuck structure, the portion of the old loop that overlaps the needle loop is the needle loop (see FIG. 2). In addition, in the miss (welt) weave, the thread does not touch the needle, so there is no needle loop. 3).

A sinker loop is a loop that is not continuous in the warp direction (wale direction) of a knitted fabric, and is formed by a pair of needles on a needle bed with respect to a sinker or a needle that forms a needle loop. A loop of thread that passes between adjacent needle loops. A surface formed from this sinker loop is called a sinker loop surface or a technical back.
For example, in a knitted structure, as indicated by the dotted line in FIG. 1, it refers to a loop made of yarn that extends between adjacent needle loops in the same course (see FIG. 1). The same applies to the tuck weave, and refers to loops made of yarn that extend between adjacent needle loops in the same course (see FIG. 2). In addition, in the miss (welt) weave, the thread does not touch the needle, so there is no needle loop. 3).

Even for a knitted fabric knitted by a weft knitting machine having two or more rows of needle beds or a double circular knitting machine, a knitted fabric that is knitted using only one needle bed or a stitch that is transferred to the opposite needle bed. A knitted fabric having a structure in which the sinker loops are not covered with needle loops, which is knitted using a mechanism, is a single weft knitted fabric.
For example, as shown in FIG. 5, a knitted fabric such as smooth knitting or cardboard knitting is a knitted fabric in which the front and back sides of the knitted fabric are composed only of needle loops 5a and 5b, and the sinker loop 7 is a needle loop formed by a dial needle. 5a and the needle loop 5b formed by the cylinder needle, and the sinker loop 7 does not form a surface, resulting in a double circular knitted fabric.

The single weft knitted fabric of this embodiment includes at least a course including a first yarn and a second yarn. The first thread and the second thread may be different types of threads or the same thread.
A course including the first thread and the second thread has needle loops in which the first thread and the second thread are aligned. In the present embodiment, "the yarns are aligned" means that the first yarn and the second yarn form the same knitting structure.
For example, when knitting a knit loop by applying two or more yarns to the same knitting needle as in aligning knitting, the yarns form the same knitting structure, and are pulled together to form a stitch. It means that

The method of forming aligned needle loops includes a method of supplying the first yarn and the second yarn to the knitting needle from the same yarn path as in aligned knitting, and a method of supplying the first yarn and the second yarn separately. Any method may be used, such as a method of applying yarns to the same knitting needle, as long as the same knitting structure is formed.
A course including the first yarn and the second yarn has a sinker loop in which the first yarn and the second yarn are not aligned.
The following two states are given as examples of states in which the sinker loops are not aligned.
(1) A state in which the sinker loops of the first yarn and the sinker loops of the second yarn forming the same course are separated in the plane of the knitted fabric and do not overlap (1b (welt) and 2b (tuck) in FIG. 6) and (2) either one of the sinker loop of the first thread and the sinker loop of the second thread protrudes above the sinker loop surface with respect to the other sinker loop. , a state in which the respective sinker loops do not overlap each other (states 1b (welt) and 2b (welt) in FIG. 7, the previous course is omitted).

In the single weft knitted fabric of the present embodiment, in the sinker loop in which the first yarn and the second yarn are not aligned, either one of the first yarn and the second yarn has a welt structure. , and the other is the tuck structure (see FIG. 6).

In order to knit a single weft knitted fabric in which one of the first yarn and the second yarn is a welt structure and the other is a tuck structure, for example, the yarn feeding angle can be changed according to the knitting structure Using a knitting machine with fingers to create a large angle difference between the yarn paths of the first yarn and the second yarn, or using a knitting needle where the first yarn forms a welt and the second yarn forms a tuck structure It is possible to appropriately devise such measures as selecting a cam so that the yarns are arranged in such a way that the pile knitting is carried out, dividing the height of the yarn into two stages using a sinker for pile knitting, and increasing the tension difference between the yarns to separate the yarn paths.

The single weft knitted fabric of the present embodiment has the knitting structure described above, so that even when a load is applied and the knitted fabric is stretched and becomes coarse and dense, the yarn area existing between the needle loops is increased, and thin yarns can be used. It is possible to obtain a bursting strength that can withstand practical use even when it is used.

The yarn used for the single weft knitted fabric of this embodiment is not particularly limited, but natural fibers, synthetic fibers, and regenerated cellulose fibers are suitable for clothing.
Natural fibers include cotton, hemp, silk, wool, and the like. Synthetic fibers include polyester fibers such as polyethylene terephthalate and polytrimethylene terephthalate, polyamide fibers such as nylon 6 and nylon 66, and polyolefin fibers such as polyethylene and polypropylene. Any thread can be selected. Moreover, rayon, cupra, lyocell, etc. can be mentioned as regenerated cellulose fibers, and it may be in the form of a composite yarn with a synthetic fiber, which will be described later.
Also, the cross-sectional shape of the fiber may be any cross-sectional shape such as round, elliptical, W-shaped, cocoon-shaped, or hollow fiber. Also, the form of the fiber is not particularly limited, and it may be raw yarn or crimped yarn such as false twist.

A composite yarn may be used for the single weft knitted fabric of the present embodiment. The form of the conjugated yarn is not particularly limited, and a conjugated method such as conjugated by interlacing or conjugated by twisting may be selected according to the application. When a composite yarn of cellulose fiber and synthetic fiber is used, the fineness thereof is preferably 19 to 90 decitex (dtex), whereby a thin knitted fabric with excellent wearability can be obtained. When using single covered yarn (SCY) or double covered yarn (DCY), which is a composite yarn of elastic yarn and synthetic fiber or natural fiber, the total fineness of the elastic yarn and the composite yarn is preferably 30 to 100 dtex. 40 to 80 dtex is more preferable from the viewpoint of ease of knitted fabric production.

In the single weft knitted fabric of the present embodiment, it is preferable that either the first yarn or the second yarn is a yarn having elasticity, and more preferably the yarn forming the tuck structure has elasticity. preferable. In addition, "stretchable yarn" refers to a yarn with a stretch rate (DRY) of 20% or more, preferably 25%, when measured according to the JIS-L-1013-8.11-A method. or more, more preferably 30% or more. Examples of stretchable yarns include yarns crimped by heat setting, side-by-side structure, eccentric sheath-core structure, and elastic yarns such as polytrimethylene terephthalate and polyurethane elastic yarns. The single weft knitted fabric of the present embodiment includes elastic yarns, so that the yarns are stretched and stretched, and the sinker loops are contracted to improve the smoothness of the skin surface. It is easy to obtain a knitted fabric that feels good against the skin when worn.

Elastic yarns are particularly preferred as yarns with elastic yarns. Here, elastic yarn refers to fibers having a maximum elongation of 100% or more. The polymer of the elastic yarn and the spinning method are not particularly limited, and polyurethane-based or polyetherester-based elastic yarns can be used. For example, polyurethane-based elastic yarns can be dry-spun or melt-spun. It is preferable that the elastic yarn does not lose stretchability at around 180° C., which is the normal processing temperature in the preset process during dyeing. In addition, an elastic thread having high setting properties, deodorizing properties, and antibacterial properties can also be used by containing a powder such as a special polymer or an inorganic substance in the elastic thread. The fineness of the elastic yarn is preferably 9 to 80 dtex, and more preferably 15 to 60 dtex from the viewpoint of easiness of knitted fabric production.

In the conventional knitted fabric, the contribution rate of the polyurethane elastic yarn to the improvement of the bursting strength is small, but in the knitted fabric of the present embodiment, the load is reduced in the sinker loop portion where the first yarn and the second yarn do not overlap. Since the supporting thread area increases, when either the first thread or the second thread is an elastic thread, the polyurethane elastic thread can contribute to the improvement of the bursting strength.

In the single weft knitted fabric of the present embodiment, the ratio of the number of sinker loops not aligned to the number of sinker loops in the entire knitted fabric is preferably 25% or more from the viewpoint of improving the bursting strength. It is more preferably 50% or more, and still more preferably 100%.

In order to adjust the ratio of the number of sinker loops that are not aligned with respect to the number of sinker loops of the entire knitted fabric to 25% or more, in the case of a jacquard knitting machine, it is sufficient to design the organization for each needle. If not, the number of courses and the number of wells for one complete tissue may be increased or decreased. Note that one complete design refers to the smallest repeating unit of the knitting structure that constitutes the knitted fabric.

In the weft knitted fabric of the present embodiment, the first yarn and the second yarn move the knit structure and the tuck structure or the welt structure in the weft (horizontal, course) direction of the knitted fabric from the viewpoint of making the skin more gentle. Alternating repetition is preferred. ``The first yarn and the second yarn alternately repeat the knit structure and the tuck structure or the welt structure in the weft direction of the knitted fabric'' means, for example, as shown in FIG. A first yarn 1 is knitted repeatedly in the weft direction of the knitted fabric in a knit structure, a welt structure, a knit structure, a welt structure, and so on, and a second yarn 2 is knitted in a knit structure, a tuck structure, a knit structure, a tuck structure, and so on. It refers to being knitted repeatedly in the latitudinal direction. At this time, in the needle loops 1a and 2a, the first yarn and the second yarn are aligned to form a knit structure, and in the sinker loops 1b and 2b, the first yarn is the welt loop and the second yarn is Since the tuck loop is formed, the sinker loop has a structure in which the first yarn 1 and the second yarn 2 are not pulled together.

The arrangement of knitting and tucking can be adjusted by a method of using a plurality of needles with different butt lengths, needle selection by jacquard, etc., and by appropriately changing them according to the knitting machine and the cam to be used.

The single weft knitted fabric of this embodiment can further include a third yarn from the viewpoint of imparting functionality and improving burst strength, and the third yarn and the first yarn or the second yarn play You may be pinging.
Also, a fourth yarn can be further included, one of the first yarn and the second yarn is plated with the third yarn, and the first yarn and the second yarn Of these, the third yarn, the non-plated yarn, and the fourth yarn may be plated.
Plating is also called plating knitting, in which a plurality of yarns are fed to knitting needles, and each yarn is knitted in the same structure with the same knitting needle. Yarn feeding conditions It is possible to select the yarn exposed on the surface of the knitted fabric by

The knitting machine used for knitting the single weft knitted fabric of this embodiment is not particularly limited. The gauge of the knitting machine can be arbitrarily selected, but it is preferable to use a knitting machine of about 28 to 60 gauge. If it is 28 gauge or more, the size of the needle is sufficiently small, so that it is possible to knit a knitted fabric with small stitches by using fine fineness yarn, and the knitted fabric surface is smooth and pleasant to the touch, and has good aesthetics. Knitted fabric is easy to obtain. In addition, if it is 60 gauge or less, it is easy to prevent the loop size from becoming too small and to impart an appropriate stretchability that does not cause stress when worn.

The single weft knitted fabric of the present embodiment preferably has a bursting strength of 200 kPa or more, more preferably 250 kPa or more, and still more preferably 300 kPa or more according to the JIS-L1096-8.18.3-A method (Mullen type method). is. If the bursting strength is 200 kPa or more, the knitted fabric is excellent in durability such that the fabric is resistant to tearing when actually worn even when used as an innerwear. In the weft knitted fabric of the present embodiment, the bursting strength can be improved by increasing the ratio of the course including the portion where the first yarn and the second yarn are not aligned in the sinker loop portion. The proportion of the course can be increased or decreased as appropriate according to the purpose.

The dynamic friction coefficient μK of the sinker loop surface of the single weft knitted fabric of the present embodiment measured using a static and dynamic friction measuring machine Tribomaster Type: TL201Ts manufactured by Trinity Lab is more than 0 and 0.450 or less. It is preferably 0.400 or less, and still more preferably 0.350 or less. The smaller the dynamic friction coefficient μK, the smaller the contact resistance between the skin and the clothing when the knitted fabric is worn as clothing. The knitted fabric is excellent in contact with the skin and does not easily feel friction between the skin and the clothes when the clothes sewn in the arranged arrangement are worn and come into contact with the skin. In the weft knitted fabric of the present embodiment, the smoothness of the sinker loop surface can be improved by increasing the number of sinker loops in which the first yarn and the second yarn are not pulled together in the sinker loop portion. The proportion of the sinker loop can be increased or decreased as appropriate according to the purpose. Furthermore, the smoothness of the sinker loop surface can be improved by increasing the stretchability of the thread or by using an elastic thread.

The elongation rate of the single weft knitted fabric of the present embodiment under a load of 14.7 N in the warp direction of the knitted fabric is preferably 120% or more, more preferably 150% or more. In addition, the elongation rate of the single weft knitted fabric of the present embodiment at a load of 14.7 N in the weft direction of the knitted fabric is preferably 80% or more, more preferably 85% or more, and 90% or more. is more preferred. A garment using a knitted fabric having a sufficient elongation ratio in the warp and weft directions does not impede the movement of the wearer, and thus can be made into a wear with excellent operational comfort. In the weft knitted fabric of the present embodiment, it is possible to adjust the elongation rate in the warp and weft directions by selecting a gauge or changing the yarn length, and can be appropriately adjusted according to the purpose.

The single weft knitted fabric of the present embodiment preferably has an elongation recovery rate in the warp direction of the knitted fabric of 80% or more, more preferably 90% or more. The stretch recovery rate in the weft direction of the single weft knitted fabric of the present embodiment is preferably 80% or more, more preferably 90% or more. A garment using a knitted fabric having sufficient elongation recovery rates in the warp and weft directions can maintain its shape even after being worn repeatedly, leading to a longer product life. In the weft knitted fabric of this embodiment, in addition to adjustment by selecting a gauge and changing the yarn length, it is possible to increase the elongation recovery rate by including an elastic yarn blend ratio of 5.0% or more, preferably 10% or more. is.

In the single weft knitted fabric of the present embodiment, the yarn length (loop length) per 100 wells in one course knits the welt structure of the sinker loops that are not aligned from the viewpoint of surface smoothness. The yarn length is preferably 300 mm/100 w or less, more preferably 250 mm/100 w or less, still more preferably 200 mm/100 w or less. When the weight is 300 mm/100 w or less, the sinker loop does not become convex on the surface of the knitted fabric, the smoothness of the sinker loop surface can be maintained, and a knitted fabric with excellent wearability can be obtained. In order to adjust the loop length, it is possible to adjust the stitch density and the amount of feeding of the yarn, as well as the means for changing the spacing of the needle beds.
The method for confirming whether or not the course includes the welt structure is not particularly limited, and confirmation can be made by unraveling the knitted fabric, observing the knitted fabric, or the like.

The basis weight of the single weft knitted fabric of the present embodiment is preferably 70 g/m ² to 250 g/m ² , more preferably 70 g/m ² to 190 g/m ² . If the basis weight is 70 g/m ² or more, the bursting strength of the knitted fabric when used as a garment is improved, and the knitted fabric is less likely to cause problems in practical use. Further, if the basis weight is 190 g/m ² or less, the knitted fabric does not become too thick, so a knitted fabric with a soft touch is obtained, and the knitted fabric is suitable for wearing as underwear.

The thickness of the single weft knitted fabric of the present embodiment is preferably 0.30 mm to 1.00 mm, more preferably 0.40 mm to 0.90 mm. If the thickness is 0.30 mm or more, problems with transparency and strength when worn are unlikely to occur. , the knitted fabric has a good texture.

The weft knitted fabric of the present embodiment may be dyed. As the dyeing finishing method, the normal dyeing finishing process can be used, and the dyeing conditions are set according to the fiber material to be used, and the dyeing machine to be used can be arbitrarily used such as jet dyeing machine, wince dyeing machine, paddle dyeing machine, etc. is. Further, a processing agent that improves water absorption and flexibility can be used. As the softener, a silicone-based, urethane-based, or ester-based softener can be used, and the concentration may be appropriately selected according to the texture of the desired knitted fabric, but 0.1%owf to 2.0%. %owf, it is possible to impart soft stretchability and recoverability by reducing friction between stitches.

EXAMPLES The present invention will be specifically described below with reference to examples and comparative examples. Of course, the present invention is not limited only to these examples.
Methods for measuring characteristic values used in Examples and the like are shown below. The knitted fabric used for measurement is a knitted fabric cut out from clothing, but the present invention also includes knitted fabrics that are not used as clothing, and the application is not limited to clothing.

(1) Ratio (%) of the number of sinker loops that are not aligned to the number of sinker loops in the entire knitted fabric
In the weft knitted fabric of the present embodiment, the ratio of the sinker loops that are not aligned to the number of sinker loops in the entire knitted fabric is the number of sinker loops in the entire knitted fabric and the sinkers in which the first yarn and the second yarn are not aligned. The number of loops is selected from an arbitrary location in the knitted fabric, and the total number of sinker loops, the first yarn and the second yarn are pulled. The number of misaligned sinker loops was counted and calculated by dividing the latter by the former.

(2) Metsuke (g/m ² )
The basis weight of the knitted fabric is measured in accordance with JIS-L-1096 standard mass per unit area A method (JIS method).

(3) thickness (thickness) (mm)
The thickness of the knitted fabric is measured at three arbitrary positions of the knitted fabric with a knitted fabric thickness meter manufactured by PEACOCK, and the average value of the three positions is calculated.

(4) Stitch density Number of wells: Measure the number of needle loops in 1 inch in the weft direction (course direction) of the knitted fabric. In the case of a knitted fabric containing a mesh part, the number of needle loops may differ from course to course depending on the knitted fabric structure.In this case, the number of needle loops in the course with the largest number of needle loops is the number of wells, is wells/inch (w/inch (2.54 cm)).
Number of courses: Measure the number of needle loops in 1 inch in the warp direction (well direction) of the knitted fabric. In the case of a knitted fabric containing a mesh part, the number of needle loops may vary from well to well depending on the knitted fabric structure. shall be courses per inch (c/inch).

(5) Thread length in each course (mm/100 wells)
A range of 100 wells of the knitted fabric measured by the method for measuring the density of the knitted fabric is cut. In any one complete weave of the knitted fabric, all courses of the one perfect weave are unknitted, each yarn is pulled out, and the yarn length is measured in a standard environment of 20° C. and 65% by the following method.
Yarn with an elongation of less than 100%: One end of the inelastic yarn obtained by unknitting is fixed and suspended, and a predetermined load is applied to the opposite end according to the yarn type shown below, and after 30 seconds Measure length. The unit is expressed as mm/100w. The yarn length of the non-elastic and elastic composite yarn is measured by this method.
<Load by yarn type>
Synthetic stretch bulky yarn, composite yarn of inelastic yarn and elastic yarn: 8.82 mN/dtex
Other inelastic thread: 2.94 mN/dtex
Elastic thread: One end of the elastic thread obtained by unknitting is fixed and suspended, and it is confirmed that the elastic thread is almost straight, and the length is measured in that state. The unit is expressed as mm/100w.

(6) Weight mixing ratio (%)
In any one complete weave of the knitted fabric, for all courses of the one complete weave, a range of 100 wells in each course is cut, and the weight of the fabric is measured in an environment of 20° C. and 65%. After that, unknitting is performed, each yarn is extracted, and the yarn weight is measured in a standard environment of 20° C. and 65%.

(7) Bursting strength (kPa)
The bursting strength is measured according to the JIS-L1096-8.18.3-A method (Mullen type method), and the unit is kPa. Detailed procedures are described below. It is measured using a Mullen-type bursting strength tester manufactured by Daiei Kagaku Seiki Co., Ltd. Five test pieces each having a width of 150 mm and a length of 150 mm are prepared. The sample is placed in a non-stretched state between the upper and lower clamping plates, which have an opening of 30 mm ± 0.3 mm in the center of the annular circular plane, and is sandwiched and fixed between the upper and lower clamping plates. . A rubber septum placed under the lower clamping plate is pressurized and the force (kPa) at which the rubber septum breaks through the sample is recorded. Remove the fabric from the clamping plate and record the strength (kPa) of the rubber diaphragm alone at break. The rubber diaphragm uses pure rubber with a thickness of 0.84-0.89 mm without mineral fillers.
The value obtained by subtracting the strength (kPa) of the rubber diaphragm alone at break from the strength (kPa) at which the rubber diaphragm breaks through the sample is defined as the bursting strength kPa of the sample. The burst strength (kPa) is obtained by measuring once for each sheet and calculating the average value of five measurements.

(8) Elongation rate (%) and elongation recovery rate (%)
JIS-L1096-8.16.2-B-1 method (constant load method) is used to measure the stretch rate and recovery rate in the warp direction (well direction) and weft direction (course direction) of the knitted fabric.
The test was conducted with a load of 14.7 N, a load application time of 1 hour, and a recovery time after removal of the load of 1 hour. Make a test piece with a size of 60 mm in width and 300 mm in length, draw a line 200 mm from the fixed end, measure the distance from the fixed end to the line after loading and unloading, and measure the amount of extension. to measure the elongation rate and recovery rate.

(9) Dynamic friction coefficient μK of sinker loop surface
The dynamic friction coefficient μK of the sinker loop surface of the knitted fabric is measured using a static/dynamic friction measuring machine Tribomaster Type: TL201Ts manufactured by Trinity Lab.
In the case of a single knitted fabric, measure the sinker loop surface, and in the case of a double knitted fabric, measure the dial surface.
During the measurement, the friction element is reciprocated three times under the following conditions: non-patterned type/contact surface 11 mm×15 mm, measurement load: 3.75 g, friction speed 30 mm/sec, friction distance 100 mm. Friction is started from the knitting start direction to the knitting end direction (forward trip), and after rubbing 100 mm, the friction direction is reversed, and the knitting end direction to the knitting start direction (return trip) is rubbed. This operation is repeated three times, and the dynamic friction coefficient μK of each outward trip and the dynamic friction coefficient μK of each return trip are measured, and the average value of each outward trip and return trip is calculated. The formula below:
Dynamic friction coefficient μK of sinker loop surface = (Outbound dynamic friction coefficient μK + Return dynamic friction coefficient μK)/2
Then, the dynamic friction coefficient μK of the sinker loop surface was obtained.

(10) Yarn stretch rate (%)
The stretchability of the yarn used in this embodiment is measured according to JIS-L-1013-8.11-A method. Any one complete weave of the knitted fabric is cut to a width of 30 cm or more, the entire course of the one perfect weave is unknitted, each yarn is extracted, and measured under a standard environment of 20 ° C. and 65% RH. I do.

(11) Wearing comfort (wearing comfort)
A short-sleeved innerwear for the upper body is sewn from the knitted fabrics obtained in Examples and Comparative Examples, and worn on a monitor, and a dress shirt is worn over the short-sleeved innerwear. Assuming commuting in early summer, the wearer sat on a chair for 5 minutes in an environment of 28° C. and 50% RH, and then walked for 20 minutes at a speed of 4.5 km/hr using a treadmill. The feeling of wearing from wearing the innerwear to the end of walking was subjectively evaluated on the following two items, [Item 1: Ease of movement while wearing] and [Item 2: Feeling on the skin], on a scale of 5 out of 5 based on the following evaluation criteria. The test was conducted by 10 monitors, and the average score of the two items was used as the evaluation result. The average value was rounded off to the second decimal place and calculated to the first decimal place. An average score of 4.0 or more was judged to be excellent in wearability or comfort.

[Item 1: Ease of movement while wearing]
Wearing comfort was evaluated on a scale of 5 out of 5 from the viewpoints of tightness and movement followability.
5 points: very comfortable 4 points: comfortable 3 points: no special discomfort 2 points: uncomfortable 1 point: very uncomfortable.

[Item 2: Texture]
Wearing comfort was evaluated on a scale of 5 out of 5 in terms of the degree of rubbing against the skin during wear and the texture of the fabric when picked up.
5 points: very comfortable 4 points: comfortable 3 points: no special discomfort 2 points: uncomfortable 1 point: very uncomfortable.

In the examples, comparative examples, and tables that follow, various yarns are designated as follows.
Nylon: Ny
Polyester: Es
Polytrimethylene terephthalate: PTT
Cotton: Co
Cupra: Cu
Polyurethane elastic thread: Pu
Also, the unit of the number of filaments is expressed as f.
Bare polyurethane elastic threads are used unless otherwise specified.

[Example 1]
Using a 40-gauge single circular knitting machine, the knitted fabric was knitted according to the knitting diagram of FIG.
First Thread: Es 33dtex36f DTY
Second yarn: Pu 44dtex
The green machine was relaxed and scouring in a continuous scouring machine, and then preset at 190° C. for 1 minute. Dyeing was carried out with 1.0% owf of the softener Nikka Silicon AMZ (Nicca Chemical Co., Ltd.) added during dyeing, and finish setting was carried out at 170° C. for 1 minute to produce a knitted fabric. Evaluation results are shown in Tables 1 and 2 below.

[Example 2]
A knitted fabric was produced in the same manner as in Example 1, except that the yarn used was changed as follows.
First Thread: Ny 33dtex24f Woolly
Second yarn: Pu 22dtex
Evaluation results are shown in Tables 1 and 2 below.

[Example 3]
A knitted fabric was produced in the same manner as in Example 1, except that the yarn used was changed as follows.
First Thread: Es 33dtex36f DTY
Second thread: Cu 33dtex24f
The evaluation results are shown in Table 1 below.

[Example 4]
A knitted fabric was produced in the same manner as in Example 1, except that the yarn used was changed as follows.
First Thread: Es 33dtex36f DTY
Second thread: PTT 33dtex12f
Evaluation results are shown in Tables 1 and 2 below.

[Example 5]
A knitted fabric was produced in the same manner as in Example 1, except that the yarn used was changed as follows.
First Thread: Es 33dtex36f DTY
Second Thread: Ny 8dtex5f x Pu 17dtex SCY
Evaluation results are shown in Tables 1 and 2 below.

[Example 6]
A knitted fabric was produced in the same manner as in Example 1, except that the yarn used was changed as follows.
First Yarn: Pu 44dtex
Second yarn: Pu 44dtex
The evaluation results are shown in Table 1 below.

[Example 7]
A knitted fabric was produced in the same manner as in Example 1, except that the yarn usage was changed as follows and the first yarn and the third yarn were plated and knitted.
First Thread: Es 50dtex72f
Second yarn: Pu 22dtex
Third Thread: Pu 22dtex
Evaluation results are shown in Tables 1 and 2 below.

[Example 8]
Using a 40-gauge single circular knitting machine, the fabric was knitted according to the knitting diagram of FIG. 10 using the following yarns to obtain a gray fabric. In this example, the first yarn and the second yarn are knitted in the same course, and the third yarn and the fourth yarn include the first yarn and the second yarn. Organized in a course different from the course. Also, the third yarn and the fourth yarn were knitted together.
First Thread: Es 33dtex36f DTY
Second yarn: Pu 22dtex
Third Thread: Es 33dtex36f DTY
Fourth Thread: Pu 22dtex
The green machine was relaxed and scouring in a continuous scouring machine, and then preset at 190° C. for 1 minute. Dyeing was performed with 1.0% owf of Nikka Silicon AMZ (Nicca Chemical Co., Ltd.) added as a softening agent at the time of dyeing, and finish setting was performed at 170°C for 1 minute. A knitted fabric was produced. Evaluation results are shown in Tables 1 and 2 below.

[Example 9]
A knitted fabric was produced in the same manner as in Example 8, except that the knitting diagram was changed to that shown in FIG. Evaluation results are shown in Tables 1 and 2 below.

[Example 10]
A knitted fabric was knitted in the same manner as in Example 9, except that the fourth yarn was not used. Evaluation results are shown in Tables 1 and 2 below.

[Example 11]
A knitted fabric was produced in the same manner as in Example 8, except that the knitting diagram was changed to that shown in FIG. Evaluation results are shown in Tables 1 and 2 below.

[Example 12]
A knitted fabric was produced in the same manner as in Example 1, except that the yarn used was changed as follows.
First Thread: Cu 84dtex36f
Second yarn: Pu 10dtex
Evaluation results are shown in Tables 1 and 2 below.

[Example 13]
A knitted fabric was produced in the same manner as in Example 2, except that the knitting diagram was changed to that shown in FIG.
Evaluation results are shown in Tables 1 and 2 below.

[Example 14]
Using a 24-gauge single circular knitting machine, the knitted fabric was knitted according to the knitting diagram of FIG.
First Thread: Es 33dtex36f DTY
Second yarn: Pu 44dtex
The green machine was relaxed and scouring in a continuous scouring machine, and then preset at 190° C. for 1 minute. Dyeing was carried out with 1.0% owf of the softener Nikka Silicon AMZ (Nicca Chemical Co., Ltd.) added during dyeing, and finish setting was carried out at 170° C. for 1 minute to produce a knitted fabric. Evaluation results are shown in Tables 1 and 2 below.

[Example 15]
Using a 28-gauge single circular knitting machine, the knitted fabric was knitted according to the knitting diagram of FIG.
First Thread: Es 33dtex36f DTY
Second yarn: Pu 44dtex
The green machine was relaxed and scouring in a continuous scouring machine, and then preset at 190° C. for 1 minute. Dyeing was carried out with 1.0% owf of the softener Nikka Silicon AMZ (Nicca Chemical Co., Ltd.) added during dyeing, and finish setting was carried out at 170° C. for 1 minute to produce a knitted fabric. Evaluation results are shown in Tables 1 and 2 below.

[Comparative Example 1]
Using a 40-gauge single circular knitting machine, the knitted fabric was knitted according to the knitting diagram of FIG. In addition, the first thread and the second thread were aligned and used.
First Thread: Es 33dtex36f DTY
Second yarn: Pu 44dtex
The green machine was relaxed and scouring in a continuous scouring machine, and then preset at 190° C. for 1 minute. Dyeing was performed with 1.0% owf of Nikka Silicon AMZ (Nicca Chemical Co., Ltd.) added as a softening agent at the time of dyeing, and finish setting was performed at 170° C. for 1 minute to produce a knitted fabric. Evaluation results are shown in Tables 3 and 4 below.

[Comparative Example 2]
A knitted fabric was produced in the same manner as in Comparative Example 1, except that the density was changed by changing the tension during heat setting. Evaluation results are shown in Tables 3 and 4 below.

[Comparative Example 3]
A knitted fabric was produced in the same manner as in Comparative Example 1, except that the knitting diagram was changed to that shown in FIG. Evaluation results are shown in Tables 3 and 4 below.

[Comparative Example 4]
A knitted fabric was produced in the same manner as in Comparative Example 1, except that the yarn used was changed as follows.
First Thread: Es 33dtex36f DTY
Second thread: Cu 33dtex24f
Evaluation results are shown in Tables 3 and 4 below.

[Comparative Example 5]
A knitted fabric was produced in the same manner as in Comparative Example 1, except that the yarn used was changed as follows.
First Yarn: Pu 44dtex
Second yarn: Pu 44dtex
Evaluation results are shown in Tables 3 and 4 below.

[Comparative Example 6]
Using a 32-gauge single circular knitting machine, the knitted fabric was knitted according to the knitting diagram of FIG. The first yarn and the second yarn are knitted in the same course, but by using a sinker for pile knitting, the sinker loop of the second yarn is made to protrude greatly above the sinker loop surface, The structure is such that it does not align with the sinker loop of the first thread.
First Thread: Es 84dtex36f DTY
Second thread: Co 40/1
The green machine was relaxed and scouring in a continuous scouring machine, and then preset at 190° C. for 1 minute. Dyeing was performed with 1.0% owf of Nikka Silicon AMZ (Nicca Chemical Co., Ltd.) added as a softening agent at the time of dyeing, and finish setting was performed at 170° C. for 1 minute to produce a knitted fabric. Evaluation results are shown in Tables 3 and 4 below.

[Comparative Example 7]
Using a single circular knitting machine capable of spiral knitting of 36 gauge, the knitted fabric was knitted according to the knitting diagram of FIG. The first yarn and the second yarn are knitted in the same course, but the structure is such that the sinker loop of the second yarn does not align with the sinker loop of the first yarn by spiral knitting.
First Thread: Es 33dtex36f DTY
Second yarn: Pu 22dtex
The green machine was relaxed and scouring in a continuous scouring machine, and then preset at 190° C. for 1 minute. Dyeing was performed with 1.0% owf of Nikka Silicon AMZ (Nicca Chemical Co., Ltd.) added as a softening agent at the time of dyeing, and finish setting was performed at 170° C. for 1 minute to produce a knitted fabric. Evaluation results are shown in Tables 3 and 4 below.

[Comparative Example 8]
Using a 28-gauge single circular knitting machine, the knitted fabric was knitted according to the knitting diagram of FIG. The first, second and third yarns were knitted in different courses. In addition, the fourth thread was knitted together with the first thread.
First Thread: Co 24/1
Second Thread: Co 24/1
Third Thread: Es 110dtex72f DTY
Fourth Thread: Pu 44dtex
The green machine was relaxed and scouring in a continuous scouring machine, and then preset at 190° C. for 1 minute. Dyeing was performed with 1.0% owf of Nikka Silicon AMZ (Nicca Chemical Co., Ltd.) added as a softening agent at the time of dyeing, and finish setting was performed at 170° C. for 1 minute to produce a knitted fabric. Evaluation results are shown in Tables 3 and 4 below.

[Comparative Example 9]
Using a 32-gauge double circular knitting machine, the knitted fabric was knitted according to the knitting diagram of FIG. 19 using the following yarns to obtain a gray fabric. The first, second, third and fourth yarns were knitted in different courses.
First Thread: Es 110dtex48f DTY
Second Thread: Es 33dtex12f DTY
Third Thread: Es 84dtex36f DTY
Fourth Thread: Es 56dtex24f DTY
The green machine was relaxed and scouring in a continuous scouring machine, and then preset at 190° C. for 1 minute. Dyeing was performed with 1.0% owf of Nikka Silicon AMZ (Nicca Chemical Co., Ltd.) added as a softening agent at the time of dyeing, and finish setting was performed at 170° C. for 1 minute to produce a knitted fabric. Evaluation results are shown in Tables 3 and 4 below.

INDUSTRIAL APPLICABILITY The single weft knitted fabric according to the present invention has excellent bursting strength, and is excellent in wearing comfort such as touch and ease of movement during wearing, and thus can be suitably used as a fabric for underwear.

1 first thread 1a first thread needle loop 1b first thread sinker loop 2 second thread 2a second thread needle loop 2b second thread sinker loop 3 third thread 4 fourth yarn 5 needle loop 5a needle loop 5b needle loop 6 needle loop surface 6a needle loop surface 6b needle loop surface 7 sinker loop 8 sinker loop surface

Claims (7)

At least a course including a first yarn and a second yarn, the course comprising a needle loop in which the first yarn and the second yarn are aligned, the first yarn and the second yarn Either the first yarn or the second yarn in the sinker loop in which the first yarn and the second yarn are not aligned A single weft knitted fabric in which one side is a welt structure and the other is a tuck structure. 2. The single weft knitted fabric according to claim 1, wherein at least one of said first yarn and said second yarn is an elastic yarn. 3. The single weft knitted fabric according to claim 1, wherein the ratio of the number of sinker loops in which the first yarn and the second yarn are not aligned to the number of sinker loops in the entire knitted fabric is 25% or more. The single weft according to any one of claims 1 to 3, wherein the first yarn and the second yarn alternately repeat a knit structure and a tuck structure or a welt structure in the weft direction of the knitted fabric. Knitted fabric. Single weft knit according to any one of claims 1 to 4, further comprising a third yarn, said third yarn and said first yarn or said second yarn being plated. ground. 6. The method according to any one of claims 1 to 5, wherein, of the sinker loops in which the first yarn and the second yarn are not aligned, the yarn for knitting the welt structure has a yarn length of 300mm/100w or less. Single weft knitted fabric. A garment comprising the single weft knitted fabric according to any one of claims 1 to 6.

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