JPH11140752A - Stretchable warp-knitted cloth and knitting of the cloth - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a stretchable warp-knitted cloth in which knitted parts having different tightening powers to each other are integrally knitted. SOLUTION: This stretchable warp knitted cloth consists of a main knitted part 1 and a power-strengthened knitted part 2, and the main knitted part and the power-strengthened knitted part are integrally knitted. The tightening power of the power-strengthened knitted part is at least 1.5 times that of the main knitted part, and the cloth is knitted by making the density of courses in the main knitted part and that in the power-strengthened knitted part even to each other. The densities of courses can be arranged by adjusting the runners of non-elastic yarns in both the knitted parts and/or those of elastic yarns in both the knitted parts. The cloth is suitable as an inner wear for women, etc., since this is excellent in wearability and fashionability, and advantageous in its cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stretchable knitted fabric and an elastic warp knitted by knitting an elastic yarn into a knitted knitted non-elastic yarn as a knitting yarn. It relates to how to organize the ground. The stretchable knitted fabric of the present invention comprises a main knitted fabric portion and a power-enhanced knitted fabric portion having different fastening powers, and both are integrally and continuously knitted smoothly.

[0002]

2. Description of the Related Art Conventionally, innerwear such as shorts and girdles have been manufactured by sewing a knitted fabric having a large fastening power to a portion requiring strong fastening power, such as a hem circumference or a waist portion. However, there is a problem in that the sewing operation is troublesome, and the sewn portion gives the wearer a sense of incongruity, which is also undesirable in appearance. In order to solve this problem, attempts have been made to integrally knit a knitted fabric in which the tightening power of a required portion is selectively increased. For example, Japanese Utility Model Application 5-1930
No. 9 discloses a swimsuit or the like that is continuously sewn while preventing puckering or the like by gradually increasing the fineness of an elastic yarn used from a main knitted fabric to a portion having a large fastening power. ing.

[0003]

In recent years, from the viewpoint of a feeling of wearing and a demand for design, various stretchable knitted fabrics in which a plurality of knitted fabric portions having different fastening powers are integrally knitted, for example, The challenge has been to supply a stretchable knitted fabric that is integrally knitted using a transparent mesh-like tulle as the main knitted fabric and combining satin with a satin feel as a power-enhancing knitted fabric. However, the knitted fabric of such a combination has a large risk of causing puckering and bowing based on a difference in fastening power at the boundary of the knitting structure. Practically demanded, it is likely to occur when the tightening power of the power-enhanced knitted fabric is 1.5 times or more, especially more than 2 times that of the main knitted fabric. They had to be knitted separately and stitched together for use. SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems and to achieve a main knitted fabric and a power-enhanced knitted fabric portion having a tightening power of at least 1.5 times that of the main knitted fabric, without causing puckering or bowing. Another object of the present invention is to provide a stretch knitted fabric which is integrally knitted, and a knitting method therefor.

[0004]

The inventor of the present invention has conducted research and trial and error in order to solve the above-mentioned problems, and as a result, as a means for avoiding puckering, the course of both knitted fabrics is adjusted to the same degree. Has been found to be extremely effective. Furthermore, the present invention could be completed by adjusting the runners of the inelastic yarns and / or the elastic yarns constituting the main knitted fabric and / or the power-reinforced knitted fabric in the course of the course and adjusting them.

That is, the present invention relates to a stretchable warp knitted fabric using an elastic yarn as an insertion yarn on a ground knitted with an inelastic yarn as a knitting yarn. The main knitted fabric portion and the power-enhanced knitted fabric portion are integrally knitted, and the fastening power of the power-enhanced knitted fabric portion has at least 1.5 times the fastening power of the main knitted fabric portion. Further, the present invention provides an elastic warp knitted fabric characterized in that the main knitted fabric portion and the power-enhanced knitted fabric portion are knitted with the same degree of course. The stretchable vertical knitted fabric,
The knitting structure of the main knitted fabric portion and the knitting structure of the power-enhanced knitted fabric portion may be different, for example, when knitting the knitted structure of the main knitted fabric portion with tulle and the knitting structure of the power-reinforced knitted fabric portion with satin It is suitable for. Further, it can also be preferably used when the knitting structure of the main knitted fabric portion is the same as the knitting structure of the power enhanced knitted fabric portion.

When the difference in the tightening power between the main knitted fabric portion and the power-reinforced knitted fabric portion of the stretchable warp knitted fabric is large, when it is desired to increase the tightening power slowly, or when puckering is likely to occur. In addition, in addition to the two knitted fabrics, it is preferable to knit one or more middle power reinforced knitted fabric portions 3 having an intermediate fastening power between the two knitted fabrics and the same degree in both the knitted fabric portions. The main knitted fabric portion, the power-enhanced knitted fabric portion, and the middle power-enhanced knitted fabric portion can be knitted in an arbitrary arrangement in a striped manner. The above-mentioned stretchable warp knitted fabric is formed by adjusting the runner of the inelastic yarn constituting the ground stitch of each knitted fabric portion and / or the runner of the elastic yarn which is the insertion yarn of each knitted fabric portion. It is desirable that the knitting of courses be the same. In addition, the pulling yarn 11 is inserted into the above-mentioned stretchable warp knitted fabric, the ear ring yarn 12 is knitted from both sides, and a part of the elastic yarn 13 is knitted into the ear ring yarn and entangled with the drawn yarn. Can be made into an elastic warp knitted fabric having a cohesive hem 7 from which hem is removed. The stretchable knitted fabric of the present invention is
This is particularly effective when the tightening power between the power-enhanced knitted fabric portion and the main knitted fabric portion is at least twice as likely to cause puckering.

Further, the present invention relates to a warp knitting machine having the same number or more beam shafts as the number of a plurality of trousers, wherein the stretchable warp knitted fabric is used for each knitted fabric portion. A knitting method is provided in which a runner of an inelastic yarn constituting a ground knit and / or a runner of an elastic yarn which is an insertion yarn of each knitted fabric portion is adjusted to equalize the course of each knitted fabric portion and knit.

In the present invention, the tightening power and stitch of the knitted fabric refer to values measured by the following methods. a. Tightening power measurement method: Two pieces of 2.5 cm × 16.0 cm knitted fabric were sampled in each of the vertical and horizontal directions to obtain test pieces. The test piece was attached to a constant-speed elongation type tensile tester with an upper grip of 2.5 cm, a lower grip of 3.5 cm, and a tension interval of 10 cm.
The elongation recovery is repeated three times at a speed of ± 2 cm / min, and an elongation recovery curve is drawn. 30% at the third time from this curve
The tension and the tension at the time were determined. In the same manner, three places of the knitted fabric were measured, an average value was obtained, and the result was represented by a load (gf).

[0009]

[Table 1] b. Course measurement method: The number of yarns running in the lateral direction was measured using a commercially available densimeter, and the number of courses per inch was determined. c. Runner refers to the length of the thread forming the 480th knitted fabric.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The requirements for implementing the stretchable knitted fabric and the method for knitting the same according to the present invention, and preferred embodiments as required, will be described in detail with reference to the drawings. I do. 1 to 3 are schematic views showing an embodiment of an elastic warp knitted fabric according to the present invention, and FIGS. 4 to 6 are examples of a knitting structure of the elastic warp knitted fabric according to the present invention. The stretchable warp knitted fabric according to the present invention has the power knitting and the main knitted fabric portion 1 in which an elastic yarn is inserted as an insertion yarn into a ground knitted with a synthetic fiber of non-elastic yarn and / or cotton yarn as a knitting yarn. The knitted fabric portion 2 is further provided with a middle power enhanced knitted fabric portion 3 as necessary. And, although there is at least 1.5 times or more than twice the difference of the tightening power between the main knitted fabric portion 1 and the power-reinforced knitted fabric portion 2, each knitted fabric is integrally knitted. And no puckering or bowing is observed at the boundary between the two knitted fabric portions.

The yarn used for the knitting yarn as an inelastic yarn in the stretchable warp knitted fabric of the present invention is, for example, a synthetic fiber such as a multifilament of nylon or polyester, or a nylon-processed yarn. And silk thread.
A fiber having a function suitable for a target end product may be appropriately selected and used. Nylon and cotton yarns rich in water absorbency are preferably used as knitted fabrics for innerwear. Polyurethane yarn (coated spandex) is usually used for the yarn used as the elastic yarn for the insertion yarn. Inelastic yarns may be inserted in addition to the elastic yarns.

The fineness of the non-elastic yarn and the elastic yarn is not particularly limited. However, due to the balance of strength, both the non-elastic yarn and the elastic yarn have the fineness of the yarn of the power-reinforced knitted fabric portion in the main knitted fabric portion. It is recommended to use yarns of equal or greater fineness. The fineness itself is 20 to 1 for synthetic fibers.
00 denier, single fiber fineness in the range of 0.5 to 4 denier,
In the case of cotton yarn, it is generally in the range of 60 to 120, and in the case of elastic yarn, the total fineness is generally 40 to 840 denier, and the single fiber fineness is generally 4 to 55 denier.

The stretchable knitted fabric of the present invention comprises a main knitted fabric portion 1
And a power-reinforced knitted fabric portion 2 having a tightening power greater than that of the main knitted fabric portion and, if necessary, a middle-power-reinforced knitted fabric portion 3 having a tightening power intermediate between the two knitted fabrics, are continuously and integrally knitted. However, there is no special restriction on the knitting structure of each knitted fabric portion, and the knitting structure can be selected according to the purpose of use and design requirements. As an example of a combination of knitting structures preferably used when the present invention is used for innerwear, a main knitted fabric portion with a mesh-like tulle or a power net knitting structure, and a power-enhanced knitted fabric portion with a satin knitting structure. Knitted fabrics are knitted. Above all, a knitted fabric that combines the transparency of tulle with satin like satin is effective in expressing transparency without a sense of incongruity.
Satins include knitting structures such as so-called 4-course satin, 6-course satin, and 10-course satin, as well as knitting structures such as atlas. The knitting structure of each knitted fabric portion may be the same, and a knitted fabric having a uniform feeling can be obtained.

Although the fastening power depends on the use of the knitted fabric, generally, the fastening power of the power-reinforced knitted fabric portion is 150 to 500.
(G) The elongation rate in the vertical direction is 130 to 200 (%), and the elongation rate in the horizontal direction is 100 to 200 (%), which is suitable for use as a fastening part for innerwear such as a girdle. The strength and extensibility of the tightening power can be appropriately adjusted for the power-enhanced knitted fabric and the main knitted fabric according to the number and fineness of the elastic yarns to be inserted.

In the stretchable warp knitted fabric of the present invention, it is important that the stitches of the respective knitted fabric parts constituting the knitted fabric are adjusted to be the same. That is, the accuracy of the alignment is usually within ± 3 courses / inch, preferably within ± 2 courses / inch, and preferably within ± 1 course / inch. The first time
It can be carried out by adjusting the inelastic yarn and / or the elastic yarn runner of each knitted fabric portion. As a result, the tightening power difference between the main knitted fabric portion 1 and the power-reinforced knitted fabric portion 2 is reduced. The occurrence of puckering and bowing caused by the power difference between the knitted fabric portions is avoided.

Generally, the runner of the inelastic yarn and the elastic yarn of the power-reinforced knitted fabric portion 2 is preferably adjusted to be larger than the runner of the inelastic yarn and the elastic yarn of the main knitted fabric portion 1. The specific value differs depending on the knitting structure of the knitted fabric, the knitting yarn, the gauge of the knitting machine, and the like, and is often set by trial and error. Generally, when the inelastic yarn of the knitting yarn constituting the power-reinforced knitted fabric 2 is nylon, the runner is 100 to 150 c.
m, the runner of the elastic yarn is preferably in the range of 10 to 20 cm. When the knitting yarn constituting the main knitted fabric 1 is nylon, the runner is 70 to 100 cm, and the runner of the elastic yarn is 6-1.
Preferably, it is adjusted to a range of 5 cm. If the stitch of the power-enhanced knitted fabric is large with respect to the main knitted fabric, puckering will occur, and if it is too small, the knitted fabric of the hem portion will be wavy.

Further, in the knitted fabric of the present invention, the fineness of the non-elastic yarn and the elastic yarn and the runner may be between the main knitted fabric portion and the power-reinforced knitted fabric portion. In the same manner, one or two or more middle-power-reinforced knitted fabric portions 3 having an intermediate tightening power of the two knitted fabrics and the same degree as those of the two knitted fabric portions can be continuously and integrally knitted. The knitting structure of the middle power enhanced knitted fabric portion 3 is preferably the same as that of the main knitted fabric from the viewpoint of design sensation, but is not limited thereto. This is effective when the tightening power is gradually increased or decreased between the main knitted fabric portion and the power-reinforced knitted fabric portion, or when there is a large difference in the tightening power between the two knitted fabrics.

FIGS. 2 and 3 schematically show an embodiment of an elastic warp knitted fabric according to the present invention in which the middle power-reinforced knitted fabric portion 3 is integrally and continuously knitted. The stretchable warp knitted fabric shown in FIG. 2 has a main knitted fabric portion 1, a yarn runner and a power-enhanced knitted fabric portion 2 having a large stretch force with respect to the main knitted fabric,
And a middle power reinforced knitted fabric portion 3 having a tightening power intermediate between the two portions. A knitting yarn is inserted into the power reinforced knitted fabric portion 2. After knitting, the knitted fabric can be divided by pulling out the yarn to form a power-enhanced knitted fabric portion in the hem 7. Details will be described later.

The above-mentioned stretchable warp knitted fabric in which the middle power-reinforced knitted fabric portion 3 is knitted is used for applications in which the tightening power of the power-reinforced knitted fabric is required to be twice or more than that of the main knitted fabric.
It is suitable as a knitted fabric for applications requiring 2 to 10 times, particularly 2.5 to 7 times of tightening power. Although the fastening power depends on the use of the knitted fabric, for example, for fastening innerwear such as a girdle, the power of the power-reinforced knitted fabric has a power of 150 to 500 gf and an elongation rate of 130 to 130 g in the vertical direction.
Those having an elongation ratio of 200% and a transverse direction of 100 to 200% are preferred. The strength and extensibility of the power can be appropriately adjusted for the power-enhanced knitted fabric and the main knitted fabric depending on the number and fineness of the elastic yarns to be inserted.

In the example of FIG. 3, the buffer main knitted fabric portion 4 having the same knitting is further knitted on the main knitted fabric portion.
2, 3, and 4 are arranged in stripes and are integrally knitted at the same time. If it is used for a girdle, it has the effect of adjusting the so-called hip-up effect. In the knitted fabric of the present invention, the arrangement number and width of the power-enhanced knitted fabric portion 2, the middle-power-enhanced knitted fabric portion 3, and the buffer main knitted fabric portion 4 are not particularly limited. Knitting can be performed as appropriate according to design requirements.

In the case of forming a hem in the power-enhanced knitted fabric portion, it is preferable to use the method for manufacturing an elastic narrow-width knitted fabric described in Japanese Utility Model Publication No. 63-11196 for knitting the knitted fabric. The embodiment will be specifically described with reference to FIG. In this example, the warp density is changed by changing the runner of the yarn supply, and a tape-shaped middle power reinforced knitted fabric portion 3 is provided between the power reinforced knitted fabric portion 2 and the main knitted fabric portion 1 so as to be stepwise. Power has been strengthened. In addition, power enhanced knitted fabric part 2
In the drawing, a thread 1 as illustrated as a knitting structure diagram in FIG.
Knit 1 and knit earrings 12 on both sides of the thread,
The elastic yarns 13 are arranged on each ear ring yarn from the side to which the respective ear ring yarn belongs.
Is inserted, and a knitted portion 5 is provided in which a part of the inserted elastic yarn is entangled with the drawn yarn. By removing the pulling yarn 11 from the warp knitted fabric 6 and dividing the knitted fabric into 6a and 6b, the power-reinforced knitted fabric portion in which the elastic yarn is inserted into the ear ring yarn can be used as the hem 7. The end of the hem portion is not easily frayed due to the contraction of the elastic yarn 3, and the appearance is good.

It is recommended that the stretch knitted fabric of the present invention be knitted by a warp knitting machine using a plurality of beam shafts and at least the same number of beam shafts. Preferably, the number of beam shafts used is larger than the number of beams to be used, and the yarn amount is supplied from a plurality of beam shafts to one shaft to supply the yarn, so that the multi-thread runner can be arbitrarily controlled. Knitting becomes easy.

[0023]

EXAMPLES Examples 1 to 3 Examples 1 to 3 of the present invention are shown in Tables 2 to 4, and their knitting structures are shown in FIGS. In the first embodiment, the main knitted fabric portion is knitted with 6-course tulle, and the power-reinforced knitted fabric portion is knitted with 6-course satin using two elastic yarns. Example 2 is an example in which the main knitted fabric portion is knitted with 4-course tulle, and the power-enhanced knitted fabric portion is knitted with 4-course satin. Example 3 is knitted with the main knitted fabric portion in 6-course tulle and the power-enhanced knitted fabric portion in 6-course satin. It is an example.

[0024]

[Table 2]

[0025]

[Table 3]

[0026]

[Table 4]

[0027]

The stretchable warp knitted fabric of the present invention is obtained by knitting knitted fabrics having greatly different fastening powers smoothly without puckering or bowing, and without knitting seams. Therefore, there is no unpleasant sensation at the time of wearing, rich in fashionability, and advantageous in terms of cost. In addition, since knitting can be performed by giving a desired power distribution to an arbitrary position, it can be used as it is for various uses such as various types of innerwear and sportswear.

[Brief description of the drawings]

FIG. 1 is a schematic view of an embodiment of an elastic warp knitted fabric according to an embodiment of the present invention.

FIG. 2 is a schematic view of an embodiment of an elastic warp knitted fabric according to the present invention.

FIG. 3 is a schematic view of an embodiment of an elastic warp knitted fabric according to an embodiment of the present invention.

FIG. 4 is a knitting structure diagram of an embodiment of an elastic warp knitted fabric according to an embodiment of the present invention.

FIG. 5 is a knitting structure diagram of an embodiment of an elastic warp knitted fabric according to an embodiment of the present invention.

FIG. 6 is a knitting structure diagram of an embodiment of an elastic warp knitted fabric according to an embodiment of the present invention.

FIG. 7 is a knitting structure diagram of a thread to be pulled out and an ear ring.

[Explanation of symbols]

1: Main knitted fabric 2: Power-enhanced knitted fabric 3: Middle power-enhanced knitted fabric 4: Buffer main knitted fabric part 5: A part where a thread to be removed and an ear ring yarn are knitted 6a, 6b: A knitted fabric formed by separating hem 7 : Hem 11: Pulled thread 12: Ear ring 13: Elastic thread 1
4: Inelastic yarn

Claims (10)

[Claims] An elastic warp knitted fabric using an elastic yarn as an insertion yarn on a ground knitted with a non-elastic yarn as a knitting yarn, comprising a main knitted fabric portion (1) and a power-reinforced knitted fabric portion. (2) wherein the main knitted fabric portion and the power-reinforced knitted fabric portion are integrally knitted, and the tightening power of the power-reinforced knitted fabric portion is at least 1.5 times the fastening power of the main knitted fabric portion. A stretchable knitted fabric characterized in that the courses of the main knitted fabric portion and the power-enhanced knitted fabric portion are knitted at the same time. 2. The stretchable warp knitted fabric according to claim 1, wherein the knitted structure of the main knitted fabric portion is different from that of the power-enhanced knitted fabric portion. 3. The knitting structure of the main knitted fabric portion is tulle,
The stretchable warp knitted fabric according to claim 2, wherein the knitted structure of the power-reinforced knitted fabric portion is a satin. 4. The stretchable warp knitted fabric according to claim 1, wherein the knitted structure of the main knitted fabric portion and the knitted structure of the power enhanced knitted fabric portion are the same. 5. One or more middle power reinforced knitted fabrics between the main knitted fabric portion and the power reinforced knitted fabric portion having an intermediate fastening power between the two knitted fabrics and the same degree in both the knitted fabric portions. The stretchable warp knitted fabric according to any one of claims 1 to 4, wherein the part (3) is knitted. 6. The knitted fabric portion, wherein the main knitted fabric portion, the power-enhanced knitted fabric portion, and the middle power-enhanced knitted fabric portion of the same degree are knitted in an arbitrary arrangement in a striped manner. The stretchable knitted fabric described in the crab. 7. The degree of the course of each knitted fabric portion is the same by adjusting the runner of the inelastic yarn constituting the ground stitch of each knitted fabric portion and / or the runner of the elastic yarn as the insertion yarn of each knitted fabric portion. 2. A knitting machine according to claim 1, wherein
7. The stretchable knitted fabric according to any one of items 6 to 6. 8. A knitted fabric obtained by inserting a drawn yarn (11) into a knitted fabric, knitting an ear ring yarn (12) from both sides, knitting a part of the elastic yarn (13) into the ear ring yarn and entangled with the drawn yarn. The stretchable warp knitted fabric according to any one of claims 1 to 7, further comprising a hem (7) obtained by removing a drawn thread. 9. The tightening power of the power-reinforced knitted fabric portion is at least twice that of the main knitted fabric portion.
9. The stretchable warp knitted fabric according to any one of items 1 to 8. 10. A method for knitting an elastic warp knitted fabric according to any one of claims 1 to 9, wherein the number of beam shafts is equal to or greater than the number of a plurality of pods. The runner of the inelastic yarn and / or the runner of the elastic yarn which is the insertion yarn of each knitted fabric part is adjusted by using a knitting machine. A method of knitting an elastic warp knitted fabric, wherein the knitting of the courses of the respective knitted fabric portions is made uniform.