JPH0726241B2 - Pantyhose stockings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pantyhose knitted with elastic fibers such as polyurethane as core yarns and covered elastic yarns around which thermoplastic synthetic fibers are wound. sex,
The present invention relates to panty hose having high transparency, uniform knitted fabric appearance, and high durability.

[Conventional technology]

Women's pantyhose are often knitted using coated elastic yarn. As the coated elastic yarn, a straight yarn (raw yarn) of a thermoplastic synthetic fiber mainly composed of nylon around spandex fiber such as polyurethane is used. )
Alternatively, the false twisted yarn is wound in a single or double covering, and the covering yarn is almost untwisted in order to sufficiently open the single yarn and maximize the covering effect. Has been. However, for this reason, in the knitted fabric structure, when the knitted fabric is in a relaxed state, the single yarn of the covering yarn floats up and is easily cracked, causing defects and lowering durability. In addition, the transparency was inferior due to the spread of the single yarn, and the luster was metallic and the delicate satin-like silky luster was not obtained.

Furthermore, the uniformity of the knitted fabric structure is impaired due to the spread of the single yarn, and the knitted fabric appearance is somewhat disordered, and there is a drawback that the uniformity is not sufficient.

[Problems to be Solved by the Invention] A pantyhose having a subtle satin-finish silky luster, excellent transparency, and good uniformity of knitted fabric appearance, and having less defects and less durability deterioration due to knitting of knitted fabric. provide.

[Means for Solving the Problems]

The number of twists of the thermoplastic synthetic fiber around the core yarn made of elastic fiber in the stocking part or panty part of panty hose or both of the stocking part and the panty part. The problem is solved by using a coated elastic yarn obtained by covering and winding the twisted yarn of (1) in the twisting direction opposite to this twisting direction to form a pantyhose product.

Here, D represents the denier of the fiber used for coating.

[Action]

The thermoplastic synthetic fibers used for coating include polyamide fibers represented by nylon 6 and nylon 66, polyester fibers represented by polyethylene terephthalate, etc., but polyamide fibers are most preferred because of their dyeability, elastic properties and durability. Are suitable.

The thickness of the fiber is preferably 15 denier or less from the viewpoint of transparency, but is not necessarily limited to this.

Polyurethane fiber is suitable as the elastic fiber of the core yarn,
In addition, elastic fibers such as polyester fibers and polyamide fibers can also be used. Here again, the fiber thickness is preferably 20 denier or less, but is not necessarily limited to this.

In the present invention For twisting, it is preferable to use a double twister, but other up twisters and down twisters are also applicable. When twisted to a high degree, it may be necessary to perform heat-setting to prevent twisting in order to avoid handling problems due to torque development.

The relationship between the twist number of the coating yarn of the present invention and the silky gloss, transparency and durability is shown in FIGS. 1 to 5.

With regard to silky gloss, as shown in Fig. 1, the simple gloss strength gradually decreases as the number of twists increases, as shown by the a curve. When it exceeds, the decrease in gloss becomes large. On the other hand, the subtle satin-like gloss is as shown by the curve b. Changes with a peak at With a twist of less than, simple luster is too strong and delicate light is lacking. On the contrary If the twist is more than, the luster becomes too dull and the silky luster is lost.

It can be said that there is silky gloss when both the gloss strength and the subtle satin-like gloss are about 4 or more. That is, A twist of less than will result in a simple bright yarn, If the twist exceeds 4, the glossiness becomes too dull and silky glossiness cannot be obtained.

On the contrary (Preferably (Less than) twist shows moderately delicate silky gloss.

Regarding the transparency, as shown in Fig. 2, it improves with the increase in the number of twists, With the above twist, the transparency is clearly good. However, On the other hand, if the twist exceeds, the transparency becomes worse. This is due to an increase in the fineness of the coated yarn due to a large twist shrinkage ratio due to a large number of twists and a bulge of the entire coated yarn due to excessive convergence.

Again, if the transparency rank is 4 or higher, it can be said that the transparency is good. (Preferably The range of (less than) indicates good transparency.

As shown in Fig. 3, the uniformity of the knitted fabric improves as the number of twists increases, With the above, the uniformity is in a good state, On the contrary, when it exceeds, the decrease is seen. The yarn converges, and the twist of the stitch loop disappears as the torque of the yarn decreases, and the knitting structure becomes uniform and the appearance uniformity is improved.
On the other hand, the yarn is roughly hardened due to excessive twisting, and due to the torque generation accompanying this, the flexibility of the yarn is lost and the stitch loop is twisted to cause disorder of the stitch structure.
The effect is clearly produced by making the twisting direction of the covering yarn and the twisting direction of the covering winding opposite to each other.

Regarding this knitting fabric uniformity, it can be said that rank 4 or higher is good.

In the case of twisting in the same direction, the torque of the yarn is generally strong, and the twist of the stitch loop is strong, so that a uniform knitted fabric cannot be obtained. Regarding durability, as shown in Fig. 4, the occurrence of scratches If it becomes above, it will decrease remarkably. On the other hand, the strength of the covering yarn of the yarn released from the stocking is slightly improved by increasing the twisting number as shown in Fig. 5, A little lower than the above, When it exceeds, the decrease becomes large.

in this way With the above twist, the occurrence of scoring is significantly reduced, the strength of the coated elastic yarn is slightly increased, and the durability is improved. However, If the number of twists exceeds, the number of twists will be small, but the strength of the coated yarn will be greatly reduced, and the overall durability will be poor.

As mentioned above, (Preferably By using a yarn with a twist number in the range of less than) and covering and winding the twist in the direction opposite to the twist direction, it has good silky luster, excellent transparency and good appearance uniformity. A panty hose product that is even more durable is obtained. The application of the present invention is such that, in single covering, covering winding in the Z twist direction is performed by using S-twisted covering yarn, or S-twisting covering winding is performed using Z-twisted covering yarn, and in double covering, S-twist undercoat yarn is used for undercoating in the Z-twisting direction, and Z-twist topcoat yarn is used for S-twisting.
Top coating in the twist direction is performed, or a bottom coating yarn in the Z twist direction is used to perform a bottom coating in the S twist direction, and a top coating yarn in the S twist direction is used to perform a top coating in the Z twist direction. It is knitted with these coated elastic yarns.

In addition, the lower coating thread can be used with any thread It is also possible to apply a knitting yarn using a double-covering yarn, which is obtained by performing overcoating in the opposite direction to the twisting yarn of the above. Further, it is of course possible to use different numbers of twists of the upper and lower coats within the scope of the present invention.

The number of winding twists for covering is 17 for single covering.
About 00t / m is good, but it can be selected appropriately depending on the thickness of the fiber used. Number of lower twists is 2400 for double covering
T / m and number of twists of 2040t / m are good, but this can also be selected arbitrarily.

On the other hand, knitting may be carried out only with such a covering yarn of single covering or double covering, but knitting with other yarns is also applicable.

Although the panty hose has been described above, the present invention can also be applied to stockings, and the stocking here means long stockings including socks, high socks, knee high socks and garter stockings.
In addition, panty hose includes those in which the leg portion and the panty portion are knitted with the same yarn and those with different yarns, such as see-through panties and tights.

Regarding the number of twists, the number of twists (t / m) and the square root of denier The value obtained by multiplying by is generally called the twist coefficient.

〔Example〕

Example 1 Nylon 6 10-denier 7-filament yarn was subjected to S-twisting and Z-twisting with 14 t / m (44), 50 t / m (158), 160 t / m (50
0), 200t / m (632), 500t / m (1581), 1000t / m (3162), 1
500t / m (4743), 1700t / m (5376) and 2000t / m (6325)
(The number in parentheses represents the twisting coefficient), twisted, and 20 denier polyurethane yarn with S twisted yarn in the Z twist direction at 2400 t /
m undercoat, then add Z twisting yarn in the direction of S twist to 2040t / m
Eight kinds of double-covered yarns were made by top-coating.

When twisting at 1000 m / t or more, heat setting was performed on the twisting machine to reduce the torque. The draft ratio of the polyurethane yarn during covering was 3.2 times.

A see-through type panty hose was made by knitting the leg part and the panty part by alternating knitting of these double-covered yarn and a nylon 15 denier 3 filament and a twisting yarn of 200 t / m.

The wearing of these panty hose was evaluated, and the silky gloss, transparency, knitted fabric uniformity and durability were evaluated. The results are shown in Tables 1 and 2.

The durability was evaluated by wearing 10 pairs for 10 days.

Sample Nos. 1, 2, 3 and 4 of the present invention were silky, transparent,
Good results were obtained for both the uniformity of the knitted fabric and the durability, showing excellent effects. On the other hand, Comparative Example No. 5,
Nos. 6, 7, 8 and 9 were inferior in silky property, transparency, knitted fabric uniformity and durability.

Example 2 Nylon 12 denier 7 filament yarn with S and Z twists of 14 t / m (48), 100 t / m (346), 200 t / m (693), 700 t respectively
/ m (2425), 1200t / m (4157), 1600t / m (5543) and 2000
Twisting was performed at t / m (6928), and single-covering was performed on a 20-denier polyurethane yarn at 1700 t / m in the S twisting direction for the S twisting yarn and the Z twisting yarn for the S twisting direction.

Furthermore, for twisted yarns of 200 t / m and 700 t / m, the twisted direction of the coated yarn and the twisted direction of the coating are the same direction, that is, the S twisted yarn is in the S twisted direction and the Z twisted yarn is in the Z twisted direction. I did a single covering. In this case also, the number of twists during single covering was 1700 t / m.

When twisting at 1200 t / m or more, heat setting was performed on the burner to reduce the torque. The draft ratio of polyurethane during covering is likewise 3.2 times.

S of each of these single covered yarns and Z
A panty hose having a leg portion was made by alternately knitting a covering yarn. The results of wearing and evaluating these pantyhose are shown in Tables 3 and 4.

Durability was evaluated by wearing 10 pairs for 10 days.

As shown in Tables 3 and 4, sample Nos. 10 and 11 of the present invention were used.
Nos. 12 and 12 were excellent pantyhose showing good quality in all of silkiness, transparency, knitting fabric uniformity and durability. On the other hand, all of Comparative Examples Nos. 13, 14, 15 and 16 were poor in quality. In Nos. 17 and 18 covered in the same direction, the knitting loop was disturbed due to the twisting of the knitting, and the uniformity of the knitted fabric appearance was poor.

[Brief description of drawings]

The drawings are explanatory views showing the relationship between the twisting coefficient of the coated yarn used in the pantyhose according to the present invention and various knitting fabric characteristics of the pantyhose, of which FIG. 1 is silky gloss, FIG. 2 is transparency, and FIG. Is a uniformity of knitted fabric, FIG. 4 is an anti-scoring property, and FIG. 5 is an explanatory diagram showing the strength of the coated yarn of the elastic coated yarn unwound from the knitted fabric.

Claims (1)

[Claims] 1. In a pantyhose stocking, the number of twists of a thermoplastic synthetic fiber is provided around a core yarn made of elastic fiber in the stocking part or the panty part or both the stocking part and the panty part. Above (D is denier of synthetic fiber for coating), Panty hose in which twisted yarns of less than knitting are knitted with covered elastic yarns that are wound in a twisted direction opposite to the twisted direction.