JPH1147186A - Healthy stocking and method for weaving the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable stockings to be worn comfortably for a long time. SOLUTION: An upper weaving yarn is changed to a lower weaving yarn (changing line 8) at the part 4 of a stocking corresponding to the part of the body around the ankle, and the stocking is woven so that wearing tightening pressure at its part 3 corresponding to the part of the body around the calf is 10 mmHg or more, stresses during 100% elongation of the leg part in the longitudinal direction is 700 g/single foot or less, and stresses during 100% elongation of the leg in the cross direction is 25 to 60 g/cm. The wearer does not feel pressed at the tips of the feet, and healthy and comfortable tightening pressures can be applied to the calves of the wearer for a long time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a health stocking having a high tightening pressure and a method for knitting the stock used for health or for medical use such as leg vein disease. In the present invention, the stockings are socks including a top rubber portion (welt portion), a leg portion (leg portion), and a foot portion (foot portion), and the leg portions are longer than the socks. The present invention is particularly suitable for stockings up to below the knee, but is not limited thereto, and can be preferably used for stockings up to above the knee.

[0002]

2. Description of the Prior Art For the purpose of health use, a tightening pressure (hereinafter referred to as a "tightening pressure") on a wearer's leg has been specially strengthened for the purpose of suppressing varicose vein swelling and leg swelling in patients with leg vein disease. Stockings are used. In these health stockings, the tightening pressure of a portion that hits around the ankle (hereinafter referred to as ankle portion) is increased by 15%.
To 50 mmHg, the tightening pressure of the part that hits the calf (hereinafter referred to as the calf part)
% Is considered to be good. For example, JP
Japanese Patent Publication No. -19501 proposes a therapeutic stocking in which a tightening pressure adapted to each part is applied. The above-mentioned treatment stocking has an effect of reducing, for example, a feeling of swelling of varicose veins and a feeling of swelling of the legs.

[0003]

Incidentally, this type of health stocking is usually manufactured and used on the assumption that it is worn continuously for a long time. However, the conventional product applies a required large elongation tension in the lateral direction of the knitted fabric (the circumferential direction of the stocking), and as a result, a large tension is generated in the vertical direction, and the toe of the wearer is pressed and bent. become,
If worn for a long time, the wearer may be distressed and continuous wearing may be difficult. The present invention has been completed with an object to provide a health stocking that can apply a healthy and comfortable tightening pressure to a calf portion of a wearer even if the toe portion is worn for a long time without being compressed. is there.

[0004]

The present invention will be described with reference to the drawings showing the parts of stockings. According to the present invention, the upper knitting yarn is switched from the upper knitting yarn to the lower knitting yarn at a portion 4 around the ankle of the leg, comprising the top rubber portion 1, the leg portion 2 and the foot portion 6 (switching line 8). The tightening pressure of the part 3 around the calf is at least 10 mmHg, and the stress in the foot when the elongation is 100% in the vertical direction does not exceed 700 g / one leg, and the stress when the elongation is 100% in the lateral direction. Is 25 to 6
A health stocking characterized by being 0 g / cm.

Further, the present invention provides a knitting yarn above the switching line 8 in which a coated elastic yarn of at least 70 denier spandex yarn is used, and a knitted elastic yarn of a spandex yarn not exceeding 50 denier is used for the lower knitting yarn. Is knitted by itself or alternately using coated elastic yarns and inelastic yarns.

Further, the present invention uses a circular sock knitting machine, uses a covered elastic yarn of a spandex yarn of at least 70 denier on the upper part up to a part 4 around the ankle of the leg, and wears the part 3 around the calf. The knitting yarn is knitted by controlling the yarn feeding tension and adjusting the knitting degree so that the tightening pressure is at least 10 mmHg, and the knitting yarn does not exceed 50 denier in the portion around the ankle. And the inelastic yarn are alternately used (switching line 8) and knitted. In the foot 6, the stress when stretched 100% in the vertical direction does not exceed 700 g / one leg, and the stress in the horizontal direction is 1 g.
There is provided a knitting method of a stocking for health, wherein knitting is performed by controlling the yarn feeding tension and adjusting the knitting degree so that the stress at the time of stretching by 00% becomes 25 to 60 g / cm.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A health stocking of the present invention will be described in detail with reference to the drawings and embodiments. FIG. 1 is a drawing showing names of parts of a health stocking.

[0008] The conventional health stocking is similar to a normal shaping pressure control stocking.
Was set to about 1.5 times the calf circumference 3. However, many people with leg varicose veins,
Obstacles are concentrated in the calf area, and there are few obstacles below the ankle area. Therefore, in the present invention, the tightening pressure of the ankle 4 which is based on the actual situation is not set unnecessarily high, and a proper value lower than the conventional value is maintained, while a high tightening pressure is applied to the calf 3. To do.

Next, a general under-knee stocking is in a state in which, when worn, a stretch of about 1.5 times in the vertical direction and about 1.5 to 3 times in the horizontal direction are simultaneously applied.
The present inventor has studied the propagation of the elongational stress in the longitudinal direction of the calf to the toe and the means for preventing it from multiple directions. As a result, the stress when the knitted fabric of the foot was stretched 100% in the longitudinal direction was 700 g. / 100 feet or less, preferably 650 g / one foot or less, the stress when stretched 100% in the transverse direction is 25 to 6
0 g / cm, preferably 30 to 55 g / c
With stockings set within the range of m, it was found that the propagation of longitudinal elongation stress from the leg to the foot was suppressed, and the knitted fabric of the foot did not compress the toe in the bending direction. Was.

That is, 100% of the foot in the vertical direction
If the elongation stress exceeds 700 g per foot, the propagating stress is increased, and the stress of the foot itself is applied to compress the toe, resulting in a severe situation. Also, when the stress at the time of 100% elongation in the lateral direction of the foot becomes less than 25 g / cm,
Even if the stress at the time of elongation of the knitted fabric in the vertical direction by 100% is set to 700 g / one leg or less, the stress propagation from the calf portion is large and the toe portion is pressed. Lateral direction 10
When the stress at 0% elongation is 25 g / cm or more, the knitted fabric at the ankle portion adheres to the skin, and the propagation of stress from the calf portion can be prevented. On the other hand, when the stress at the time of 100% elongation in the transverse direction exceeds 60 g / cm, the longitudinal stress due to the knitted fabric of the foot itself becomes large, and the longitudinal direction 100%.
It becomes difficult to suppress the stress during elongation to 700 g / foot or less.

Further, it has been found that knitting the heel portion with a bag knitting is effective in preventing the propagation of longitudinal stress from the calf portion. Next, a specific knitting of the above-mentioned health stocking of the present invention will be described.

The health stocking of the present invention can be knitted using a well-known circular sock knitting machine, and there is no particular limitation on the number of mouths and the number of stitches as long as the knitting is not hindered. Then, a required tightening pressure is applied to the calf portion using a coated elastic yarn having a strong contraction force in the upper portion, and the lower elastic portion from the ankle to the lower leg is switched to a relatively weak elastic force. Low longitudinal elongation stress, but moderate lateral elongation stress is applied to prevent strong elongation stress of the calf from propagating to the toe, and to the same level of toe compression as normal stockings.

That is, the upper leg from the ankle is knitted with a coated elastic yarn of spandex yarn having a fineness of at least 70 denier, and the calf is tightened to form 10 legs.
A required tightening pressure of not less than mmHg can be easily applied. On the other hand, 5 from the ankle part to the lower part and the foot part
By knitting using a coated elastic yarn of 0 denier or less, or alternately knitting a coated elastic yarn and a non-elastic yarn, 100% longitudinal elongation stress of the foot is 700 g / foot or less, 100% lateral elongation stress. 25 to 60 g / cm
Can be In any part, the fineness of the spandex yarn, the type of knitting yarn, the knitting structure such as flat knitting, tack knitting, and rubber knitting may be selected based on the required calf tightening pressure in consideration of the prevention of stress propagation and the like. For example, if the importance of preventing the propagation of stress in the longitudinal direction is emphasized, the fineness of the spandex yarn is set high to increase the elongation stress in the transverse direction to increase the adhesion to the skin, and alternate knitting with the inelastic yarn It is preferable to set so as to lower the longitudinal elongation stress by employing eclipse.

The 100% elongation stress in the longitudinal direction of the foot is:
The sole-in-step portion of one leg was set in a longitudinal elongation-stress measuring instrument, and the SS curve in the vertical direction was measured.
The tension at 0% elongation was read. The stress at the time of elongation of the foot in the lateral direction by 100% is similarly measured by cutting the knitted fabric of the sole-in-step portion in the horizontal direction with a width of 5 cm, cutting the cut portion in the vertical direction, and opening the single layer, and using a stretch-stress measuring device. After setting, the SS curve in the lateral direction was measured, and the tension at 100% elongation was read and converted to 1 cm. The tightening pressure of the calf was measured using a measuring instrument manufactured by HATRA (UK). The length in the vertical direction was measured using a strong clip. (42 cm in case of L size, 44 cm in case of L size), and the calf part was measured regularly.

[0015]

Next, the present invention will be described in detail with reference to examples. Example 1 Coated elastic yarn produced by winding a leg of 120 denier spandex yarn and 40 denier 24 filament nylon false twisted yarn using a four-neck feeding type sock knitting machine having a diameter of 9 cm and a number of needles of 280. The knitting yarn is switched at the ankle portion, and the flat knitting is performed using a coated elastic yarn produced by winding a 20 denier spandex yarn and a 12 denier 5 filament nylon yarn below the switching portion. Was carried out to knit a stocking under the knee for health of the present invention. The heel part was formed by bag knitting, and was knitted together with the toe part using 40 denier coated elastic yarn. In addition, the tightening pressure of the calf part when knitting is about 20 mm
Hg, the yarn feeding tension control and the knitting degree were adjusted so that the 100% elongation stress in the longitudinal direction of the foot was about 400 g / one foot and the 100% elongation stress in the lateral direction was about 35 g / cm.

The knitted stockings under the knee for health were repeatedly evaluated for wearing for 8 hours × 5 days by eight try-on persons in the same manner as ordinary stocking products. Although the wear was continued for 8 hours, there was no report that a toe portion had a bending sensation, and the wear result was favorable.

Example 2 Using a four-necked sock knitting machine having a diameter of 9 cm and a number of needles of 280, the legs were covered with a 140 denier spandex yarn wound with 40 denier 24 filament nylon false twisted yarn. A knitting yarn is knitted in a 1.1-tack knitting using a coated elastic yarn, the knitting yarn is switched at the ankle portion, and a 40 denier spandex yarn is wrapped around a 12 denier 5 filament nylon yarn below the switching portion to cover the coated elastic yarn. Plain knitting was performed by alternate knitting of denier 3-filament nylon thread doors to knit a stocking for health under the knee of the present invention. The heel portion was formed by bag knitting, and alternately knitted together with the toe portion using the same yarn as described above. In addition,
When knitting, the tightening pressure of the calf is about 35mmH
g, the yarn feeding tension control and the knitting degree were adjusted such that the 100% elongation stress in the longitudinal direction of the foot was about 650 g / one foot and the 100% elongation stress in the lateral direction was about 55 g / cm.

The knitted stockings under the knee for health were repeatedly evaluated for wearing for 8 hours × 5 days by 8 try-on persons in the same manner as in Example 1. There was no report that the toe had a feeling of bending, and the wearing result was very popular.

Comparative Example 1 Using a four-necked sock knitting machine having a diameter of 9 cm and a number of needles of 280, a leg and a foot are wound around a 120 denier spandex yarn and a 40 denier 24 filament nylon false twisted yarn. The under-knee stocking was knitted by flat knitting using the coated elastic yarn covered by the above method, the heel part was made by bag knitting, and the toe part was coated with 40 denier coated elastic yarn. In addition,
When knitting, the tightening pressure of the calf is about 20mmHg
Perform yarn feed tension control and knitting degree adjustment so that
The dimensions of the feet were slightly larger.

When the knitted stockings under the knees were repeatedly evaluated for wearing for five days by eight try-on persons in the same manner as in Example 1, the feeling of pressure on the toes was strong.
It was difficult to wear for hours. The continuous wearable time is
22 times for 2 to 4 hours, 11 times for 4 to 6 hours, 6
The average wear time was only 4.3 hours, from 7 to 8 hours. When the extension stress of the below-knee stocking foot was measured, the 100% extension stress in the longitudinal direction was about 117.
0g / one leg, 100% elongation stress in the lateral direction is about 88g / cm
Met.

COMPARATIVE EXAMPLE 2 Using a four-necked sock knitting machine having a diameter of 9 cm and a number of needles of 280, a leg portion was coated by winding a nylon denatured twisted yarn of 40 denier and 24 filaments around a 140 denier spandex yarn. The knitting yarn is knitted in a 1.1-tack knit using the coated elastic yarn, the knitting yarn is switched at the ankle portion, and a 15 denier spandex yarn is wrapped around a 12 denier 5 filament nylon yarn below the switching portion to cover the coated elastic yarn. Knitting was performed by knitting the heel part in a bag, and knitting of the stocking under the knee using a 40-denier spandex covering yarn together with the toe part. In knitting, the calf was tightened under a pressure of about 35 mmHg and the feet were knitted under ordinary conditions.

The knitted stockings below the knees were repeatedly evaluated for wearing for five days by eight try-on persons in the same manner as in Example 1. As in Comparative Example 1, continuous wearing was difficult. Continuous wear time is 10 for 2 to 4 hours
17 times, 4 to 6 hours and 13 times of 6 to 8 hours, and the average wearing time was 5.2 hours. When the extension stress of this below-knee stocking foot was measured,
100% elongation stress in vertical direction is about 315g / one leg, 1 in horizontal direction
The 00% elongation stress was about 20 g / cm. There were few reports of feeling of pressure on the toes, but it was reported that the toes began to be squeezed as they slipped over time.

[0023]

The health stocking according to the present invention comprises:
Since the tightening pressure of the leg does not propagate to the toe, there is no feeling of pressure on the toe, which is likely to occur in conventional health stockings, and a healthy and comfortable tightening pressure is applied to the calf of the wearer for a long time. It became possible.

[Brief description of the drawings]

FIG. 1 is a diagram showing names of parts of a health stocking.

[Explanation of symbols]

1: Top rubber part 2: Leg part 3: Calf part 4: Ankle part 5: Heel part 6: Foot part 7:
Toe part 8: Knitting yarn switching line (part)

Claims (3)

[Claims] An upper knitting yarn is switched from an upper knitting yarn to a lower knitting yarn at a portion (4) which comprises a top rubber portion (1), a leg portion (2) and a foot portion (6), and which hits around the ankle of the leg portion (4). At the switching line 8), at the leg, the tightening pressure of the part (3) hitting around the calf should be at least 10
mmHg, and in the foot, 100% in the vertical direction
A health stocking characterized in that the stress when stretched does not exceed 700 g / foot and the stress when stretched 100% in the lateral direction is 25 to 60 g / cm. 2. A coated elastic yarn of spandex yarn of at least 70 denier is used for said upper knitting yarn, and a coated elastic yarn of spandex yarn not exceeding 50 denier alone or coated elastic yarn is used for a lower knitting yarn. A health stocking characterized by being alternately knitted with non-elastic yarns. 3. A circular sock knitting machine, wherein at least the upper part of the leg up to the part (4) hitting around the ankle is covered with a coated elastic yarn of spandex yarn of 70 denier and the part (3) hitting around the calf is used. The knitting yarn is knitted by controlling the yarn feeding tension and adjusting the knitting degree so that the wearing tightening pressure is at least 10 mmHg.
The coated elastic yarn of spandex yarn not exceeding denier alone or the coated elastic yarn and the inelastic yarn were alternately used (switching line 8) and knitted, and the foot (6) was elongated by 100% in the longitudinal direction. The knitting is performed by controlling the yarn feeding tension and adjusting the knitting degree so that the stress at the time does not exceed 700 g / one leg and the stress at the time of stretching 100% in the horizontal direction is 25 to 60 g / cm. How to organize stockings.