JPH089186Y2 - Elastic circular knitted fabric - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an elastic circular knitted fabric.

[Conventional technology]

Elastic circular knitted fabrics such as pantyhose are usually covered in the S direction using a single covered yarn (hereinafter, "single covered yarn" is referred to as "SCY") in which nylon yarn is single covered with elastic fiber yarn. The knitting is made by alternately arranging the ringed SCY and the SCY covered in the Z direction.

As described above, the elastic circular knitted fabric using only SCY is characterized by higher stretchability and better fit than a knitted fabric in which nylon threads and SCY are alternately arranged.

[Problems to be solved by the device]

However, the conventional elastic circular knitted fabric using only SCY has a problem that the appearance is poor because the stitches are nonuniform and uneven, the horizontal stripes are noticeable, and the transparency is uneven.

Therefore, the present invention has an object to provide an elastic circular knitted fabric with good appearance quality, in which the stitches have good uniformity, whereby the horizontal stripes are not conspicuous when stretched, and a uniform transparent feeling is obtained. To do.

[Means for solving the problem]

The inventors have developed SCY (A), which is made by winding a nylon thread around the elastic fiber thread in the S direction, and a nylon thread around the elastic fiber thread in the Z direction.
As a result of research to solve the problems of the conventional elastic circular knitted fabric in which SCY (B) wound in the direction is alternately knitted, Focusing on the spiral direction of the stitch course, the twisting direction of the SCY, and the number of twists, it was found that the conventional problems could be solved by setting these as follows, and completed the present invention.

That is, the elastic circular knitted fabric according to the present invention is
Among the yarns (A) and (B), the yarn whose twist direction is the same as the spiral direction of the stitch course has a twist number 3% or more higher than that of the other yarn.

[Action]

Of the SCYs (A) and (B), the yarn whose twist direction is the same as the spiral direction of the stitch course has a twist number 3% or more higher than that of the other yarn.
The stitch course formed by Y (A) and the stitch course formed by SCY (B) are prevented from becoming non-uniform, and a uniform knitted fabric is obtained as a whole even when stretched.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings showing an embodiment thereof.

FIG. 1 shows one embodiment of an elastic circular knitted fabric according to the present invention. The elastic circular knitted fabric 1 is knitted so that SCYs (A) and (B) are alternately arranged. That is, as seen in FIGS. 4 and 5, SCY (A) and (B) are supplied to the circular knitting machine 6 so that each stitch course of SCY (A) and (B) becomes spiral. To organize. As a result, the tubular elastic circular knitted fabric 1 is formed. The number of yarns to be supplied need not be one for each of SCY (A) and (B), and may be set to an appropriate number. In this embodiment, each stitch course of SCY (A) and (B) draws a spiral in the S direction (counterclockwise) as seen in FIG.

When the spiral direction of the stitch course is the S direction, the yarn having the same twist direction as the spiral direction of the stitch course is the SCY (A) having the S twist. Therefore, in this embodiment, the number of twists of SCY (A) is set to be 3% or more larger than the number of twists of SCY (B) having Z twist. However, if the difference in the number of twists is too large, horizontal streaks may occur, so the difference in the number of twists is preferably 20% or less.

On the contrary, when the spiral direction of the stitch course is the Z direction (clockwise), the yarn whose twist direction is the same as the spiral direction of the stitch course is SCY (B), and in this case, SCY.
The twist number of (B) is 3% of the twist number of SCY (A)
The number is set to be larger than the above. Further, the difference in the number of twists is preferably 20% or less, as in the above case.

As shown in FIG. 2, the SCY (A) has an nylon fiber 2 wound around an elastic fiber yarn (not shown) in the S direction, and has an S twist. For elastic fiber yarn,
For example, those having a denier of 10 to 30 are used, and examples of the material thereof include polyurethane elastic yarn. The draft ratio of the elastic fiber yarn at the time of covering the nylon yarn 2 is, for example, 2.0 to 3.5. As the nylon yarn 2, for example, a monofilament yarn or a multifilament yarn having a denier number of 7 to 20 [D] and a filament number of 1 to 7 is used. The number of twists of SCY (A), that is, the number of windings of nylon thread 2 is, for example, 800 to 2
It is set to 200 T / m, but is not limited to this. If the number of twists deviates from this range, the appearance quality or feel may deteriorate.

As shown in FIG. 3, the SCY (B) has a nylon yarn 3 wound around an elastic fiber yarn (not shown) in the Z direction and has a Z twist. For elastic fiber yarn,
For example, those having a denier of 10 to 30 are used, and examples of the material thereof include polyurethane elastic yarn. The draft ratio of the elastic fiber yarn at the time of covering the nylon yarn 3 is, for example, 2.0 to 3.5. As the nylon thread 3, for example, a monofilament thread or a multifilament thread having a denier of 7 to 20 [D] and a filament of 1 to 7 is used. The number of twists of SCY (B), that is, the number of windings of the nylon thread 3 is not particularly limited as long as the above conditions are satisfied, and for example, 800 to 2200T / m.
It is said. If the number of twists deviates from this range, the appearance quality or feel may deteriorate.

SCY (A) and SCY (B) are the same except for the twisting direction and the number of twists, except that the total number of denier, the number of denier and material of elastic fiber yarn, and the number of denier and filament of nylon yarn are the same. There may be either one
One or more may be different.

The elastic circular knitted fabric according to the present invention is not limited to the one described above. For example, the knitting structure does not have to be that shown in FIG. Note that, in FIG. 1, only a part of the knitting structure (in the frame indicated by the one-dot chain line L) is shown in order to illustrate the spiral direction of the stitch course of the elastic circular knitted fabric. Also, in FIGS. 2 and 3, the nylon yarns are drawn to have different thicknesses, but this is not to show the difference in the thickness, but to show the difference in the number of twists. Both nylon threads may have the same thickness.

The elastic circular knitted fabric according to the present invention is different from the conventional method in setting the number of twists of SCY, but can be manufactured by using the same knitting machine, knitting method, and the like as the conventional one.

The elastic circular knitted fabric according to the present invention, when stretched, has horizontal stripes that are not conspicuous, has a uniform transparent feeling, and has a good appearance quality. For example, it is used as stockings or pantyhose. May be used for

Specific examples and comparative examples of the present invention will be shown below, but the present invention is not limited to the following examples.

-Examples 1 to 5 and Comparative Examples 1 to 3-Using SCY (A) and (B) shown in Table 1, a pantyhose knitting machine (KT-4 4 ″ × 400 circles manufactured by Nagata Seiki Co., Ltd.) is used. 1 SCY (A) and (B) for each course by knitting machine)
The elastic circular knitted fabric to be the panty hose was formed by alternately arranging the knitting pieces. The elastic circular knitted fabric was scoured, dyed, and softened in a usual manner, and then set in a pantyhose finishing machine (setter) at 118 ° C. for 10 seconds to obtain panty hose. In the circular knitting machine used here, the needle rotates counterclockwise with the cylinder as viewed from above. The spiral direction of the stitch course of the obtained pantyhose is also shown in Table 1.

The obtained pantyhose was examined for uniformity of stitches, presence / absence of horizontal stripes (the smaller the horizontal stripes, the better), and the transparency. These performances are very excellent in comparison with the pantyhose of Comparative Example 2 in which the number of twists is not different (△) ... ◎ Excellent ... ○ Equivalent ... △ Inferior The results are shown in Table 1. The results were shown in Table 1.

The uniformity of the stitches and the presence or absence of horizontal stripes indicate the foot print and paper board for display (1.
It was attached to a width of 0 to 1.5 times), and examined by visual judgment.

Regarding the transparency, the paper board was placed in pantyhose, the color of the board was changed, and it was ranked by the naked eye.

Regarding the pantyhose of Examples and Comparative Examples, the same portion (leg portion and sole portion) was examined for lateral elongation using a constant elongation tensile tester. This measurement sample is 400 pieces from each pantyhose by the ring-slicing method.
It was a collection of courses. Elongation was measured when the sample was set to the size of the product and stretched at a stretching speed of 50 cm / min until a tension of 1.8 kg f was obtained.

As shown in Table 1, in the pantyhose of the examples, the stitches were uniform, no horizontal lines were observed, and the transparency was uniform. On the other hand, in Comparative Example 1, the SCY
Since the method of setting the number of twists of (A) and (B) is opposite to that of Example 1, the number of twists of Comparative Example 2 is the same, and the number of twists of Comparative Example 3 is Since the difference is less than 3%, there is a problem that the appearance quality (uniformity of stitches and horizontal streaks) is poor.

[Effect of device]

The elastic circular knitted fabric according to this invention is SCY (A) and (B)
It is knitted so that and one by one are alternated, and SC
Since Y (A) and (B) are set so as to have a specific twisting direction and number of twists as described above, the uniformity of the stitches is good, so that the horizontal stripes are not noticeable when stretched. It has a good appearance and provides a transparent feeling without unevenness.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an embodiment of an elastic circular knitted fabric according to the present invention, and FIG. 2 is a schematic diagram of SCY (A) used for the elastic circular knitted fabric, which is a circle M of FIG. FIG. 3 is an enlarged view of the inside, FIG. 3 is a schematic view of SCY (B) used for the elastic circular knitted fabric, and is an enlarged view of the circle N in FIG. 5, and FIG. Fig. 5 is a schematic diagram of an example of the equipment used to manufacture the ground, SC
It is a schematic diagram showing the yarn feeding state and knitting structure of Y (A) and (B). 1 ... Elastic circular knitted fabric, 2,3 ... Nylon yarn, 6 ... Circular knitting machine, (A) ... SCY (A), (B) ... SCY (B)

Claims (1)

[Scope of utility model registration request] 1. A single covered yarn (A) formed by winding a nylon yarn around an elastic fiber yarn in the S direction and a single covered yarn (B) formed by winding a nylon yarn around an elastic fiber yarn in the Z direction. In an elastic circular knitted fabric that is knitted alternately, among the single covered yarns (A) and (B), the yarn whose twist direction is the same as the spiral direction of the stitch course is the other The elastic circular knitted fabric has a twist number of 3% or more.