JP2002105704A - Leg product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leg product that has a satisfactory slip-down prevention, retains the air permeability and water permeability intrinsic to the leg product, further gives no sense of incompatibility, when it is put on and shows excellent adhesive strength and the dry wear feeling with no discomfort peculiar to rubber, for example, silicone. SOLUTION: The objective leg product characteristically has the nonwoven fabric made of elastic fiber at least partially attached to the leg part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leg product having an effect of preventing slippage.

[0002]

2. Description of the Related Art Leg products, especially stockings and socks worn one leg at a time, are different from pantyhose.
Because there is no panty part, it has the advantage that the hips do not get stuffy when it is thick in the summer, even if only one leg is torn, you can continue using it if it is not torn, but due to the structure that there is no panty part, It has the drawback of slipping off during use. In order to solve such a drawback, a garter belt is used, rubber is sewn to the opening end of the stocking, and sticky silicone is attached to the opening end. However, it is troublesome to use a garter belt one by one, and it is inconvenient to be unable to wear it without a garter belt. Further, if a rubber mouth portion or a lace rubber portion is provided at the opening end of the stocking, a rubber mark will be formed, or the appearance of the thigh will be lost due to tightening with rubber. And the one with silicone attached has a feeling of incongruity peculiar to rubber, which makes it inferior to wear. Poor ventilation of the silicone part, and it adheres too strongly, causing skin irritation. In such a case, there is a problem that the silicon surfaces may come into close contact with each other and become difficult to peel off.

[0003]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a leg product which has a sufficient elasticity and a slip-preventing effect, has excellent air permeability, and has reduced adhesion to the skin. To be.

[0004]

The above-mentioned object is achieved by a leg product characterized in that a nonwoven fabric made of elastic fiber is adhered to at least a part of the leg portion.

In a preferred embodiment for achieving the above-mentioned object, the leg is characterized in that the nonwoven fabric is a stretchable nonwoven fabric, and the elastic fibers are stretchable nonwoven fabrics in which the elastic fibers have self-adhesive properties. Products.

A preferred embodiment for achieving the above-mentioned object is the above-mentioned leg product in which the elastic fibers constituting the nonwoven fabric are mainly made of thermoplastic polyurethane. Further, as a preferred embodiment for achieving the above-mentioned object, each of the above-mentioned leg products characterized in that the basis weight of the nonwoven fabric is 25 to 300 g / m ² .

[0007] Further, as a preferred embodiment for achieving the above-mentioned object, there is the leg product, wherein the softening temperature of the nonwoven fabric is 70 to 150 ° C.

[0008] Further, as a preferred embodiment for achieving the above-mentioned object, each of the leg products described above, wherein the nonwoven fabric is stuck around the opening of the leg portion.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION As the elastic fiber used in the present invention, any elastic fiber can be used, but polyurethane elastic fiber is particularly preferable.

As the polyurethane elastic body used for the polyurethane elastic fiber, a known thermoplastic polyurethane elastic body which can be melt-spun is applied. Such a polyurethane elastic body is a polymer obtained by reacting, for example, a low melting point polyol having a molecular weight of 500 to 6000, an organic diisocyanate having a molecular weight of 500 or less, and a chain extender such as glycol.

Examples of the nonwoven fabric include a nonwoven fabric made of a polyurethane elastomer, a nonwoven fabric made of a polyamide elastomer, a nonwoven fabric made of a polyester elastomer, and a nonwoven fabric made of a polystyrene elastomer. Among these stretchable nonwoven fabrics, polyurethane-based stretchable nonwoven fabrics are particularly suitable for the nonwoven fabric of the present invention because of their large frictional force and excellent wear resistance.

The polyurethane nonwoven fabric used in the present invention is desirably a nonwoven fabric using an aliphatic or alicyclic diisocyanate compound. Polyurethane nonwovens made of these materials have a relatively low softening temperature,
Further, it is a desirable nonwoven fabric for the present invention because of its good adhesion to other materials.

The softening temperature of the nonwoven fabric of the present invention is 70 to
The temperature is preferably 150 ° C, more preferably 80 to 140 ° C. When the nonwoven fabric of the present invention is used by heat bonding, the softening temperature is set to 150 ° C. so that heat bonding can be performed at a low temperature in order to avoid thermal deterioration of the original leg product.
The following is preferred. From the viewpoint of strength and wear resistance, the softening temperature is preferably 70 ° C. or higher. Further, when the softening temperature is 70 ° C. or more, the shape retention force is high, such as that the product is not easily deformed by washing or the like when reused.

On the other hand, the method for producing the nonwoven fabric is not particularly limited, but generally it can be produced by a spunbond method. In particular, in the present invention, a melt blow method, which is an example of a spun bond method, is a desirable production method. Melt blow method stretches elastic fiber with high temperature air,
Then, since they are laminated into a nonwoven fabric, they are bonded to each other with their own adhesiveness, and can be formed into a nonwoven fabric by bonding fibers together without using an adhesive. Is a desirable manufacturing method.

The performance required of the nonwoven fabric is not particularly limited, but preferably has the following physical properties, for example.

The basis weight is preferably 25 g / m ² or more in terms of strength, more preferably 50 g / m ^2.
Above, particularly preferably at least 60 g / m ² , most preferably at least 90 g / m ² . However, it is preferably 300 g / m ² or less, and more preferably 2
50 g / m ² or less, particularly preferably 200 g / m ² or less,
Most preferably, it is 150 g / m ² or less. Therefore,
Basis weight, can be appropriately determined by the balance between the strength and the soft, for example 25~300g / m ² are preferred, more preferably, 50 to 250 g / m ^2, particularly preferably 60~200g / m ^2, and most preferably Is 90-1
It is 50 g / m ² .

The tensile strength is not particularly limited, and is 50 cN /
cm or more, but it is 20
It is preferably at most 00 cN / cm. Note that the tensile strength is the tensile strength at break per 1 cm width when the sample is stretched at a grip distance of 5 cm and a tensile speed of 10 cm / min according to JIS L-1096 according to JIS L-1096.

The tensile elongation smoothly follows the elongation of the leg product itself, does not hinder the elongation of the leg product, makes it easy to wear, and peels off the nonwoven fabric from the leg product by forcibly pulling. And, from the viewpoint that the nonwoven fabric itself is less damaged, it is preferably at least 150%,
More preferably 200% or more, particularly preferably 300%
That is all. However, from the viewpoint of sufficiently exhibiting the anti-slip effect, the content is preferably 800% or less. The tensile elongation refers to a sample having a width of 2 cm according to JIS L-1096.
According to, the gripping interval is 5 cm and the pulling speed is 10 cm / mi.
It is the tensile elongation at break per 1 cm width at the time of breaking when elongating as n.

The 50% elongation recovery rate is preferably 80 or more in order to maintain the slip-off prevention effect. In addition, 5
The 0% elongation recovery rate is determined by measuring a sample having a width of 2 cm according to JIS L-10.
According to 96, the gripping interval is 5 cm and the pulling speed is 10 cm /
The elongation is 50%, and the residual elongation A% is obtained from the “load-elongation curve” recorded when the elongation is immediately restored to the original length at the same speed, and the following equation is calculated. 50% elongation recovery rate = [(50−A) / 50] × 100
(%)

In consideration of the softness, the softness y
(Mm) and the basis weight X (g / m ² ) are represented by the general formula y <
The range shown by 0.2X + 50 is preferable. In addition, the bending resistance is measured by a 45 ° cantilever method of JIS L-1096.

The nonwoven fabric can be attached at any position as long as it is a leg portion of the leg product. However, in order to obtain a sufficient anti-slip effect with a small amount of nonwoven fabric, it is effective to attach the nonwoven fabric to the open end. The open end means a so-called rubber mouth portion, which means (1) in FIG. 1. However, the mouth rubber portion does not necessarily expand or contract by rubber thread or elastic fiber. What is necessary is just to be located in the opening part of a leg product, without making it the nature. However, it is preferable to attach the nonwoven fabric to the end portion thereof with a rubber thread or an elastic fiber after the end portion has been made elastic, because the effect of preventing slippage is further enhanced.

One or more places may be attached, but in order to obtain a sufficient anti-slip effect with a small amount of non-woven fabric, it is more effective to attach to a plurality of places than to one place.

It is preferable that the sticking position is on the inner side of the leg product (on the side in direct contact with the skin) because the effect of preventing slip-off is excellent. However, when the opening end of the stocking is not visible from the outside when the stocking is attached (hidden by skirt, pants, etc.), the nonwoven fabric may be visible from the outside. For some products, it can be attached to the outside of the open end. Because the elastic fiber comes in direct contact with the skin from the transparent part of the race,
This is because a slip-off prevention effect can be exhibited.

In the case where the opening end is in a lace shape or the like, the nonwoven fabric is not bonded to the leg product at the floating portion of the lace and may come off. It is preferable that the area of the clogged portion is large or that the clogged portion is evenly arranged in the opening because of high bonding strength.

The shape and size of the non-woven fabric can be appropriately selected. For example, a tape-shaped non-woven fabric can be attached to the entire periphery of the opening (FIG. 2). Or a method of attaching to multiple places (Figs. 1, 3,
4) is simple.

In the present invention, the most suitable nonwoven fabric is appropriately selected according to the target leg product, and then the nonwoven fabric is placed on the leg product to be affixed and affixed. Examples of the sticking method include bonding by heating or pressing, bonding of a leg product and a nonwoven fabric through an adhesive, and the like. Above all, as a sticking method suitable for mass production and maintaining the quality of leg products,
Thermal bonding. In particular, in a method in which a nonwoven fabric made of a polyurethane elastic fiber having a relatively low softening temperature is bonded by heat bonding, the leg product to which the nonwoven fabric is bonded tends to have better air permeability and feel, and the production method is easy. For example, in a method of sticking by heat, a method such as an iron and a hot press can be adopted as the bonding method. The bonding temperature at the time of heat bonding is 100 to 16
0 ° C., preferably 105-140 ° C. Further, it is desirable to set the bonding temperature at a low temperature that does not impair the physical properties of the leg product. And the softening temperature of the nonwoven fabric is 15
A product having a temperature lower than 0 ° C. depends on the pressure at the time of bonding, but can be bonded usually at 160 ° C. or less, and at this bonding temperature, physical properties of a normal leg product are hardly impaired.

In the present invention, the leg products include stockings and socks.

As the stockings, so-called garter stockings, over knees, high socks, short socks, anklets, foot covers, and the like without a panty portion are also included. The garter stockings are the most effective. The socks include all socks such as socks and high socks, and all materials such as cotton, acrylic, or a blend of these.

[0029]

The present invention will be described below with reference to examples. The measurement of various physical property values was performed by the following methods.

Tensile strength and tensile elongation: A sample having a width of 2 cm is set at a gripping distance of 5 c according to JIS L-1096.
m, when stretched at a tensile speed of 10 cm / min,
The tensile strength at break and tensile elongation at break per 1 cm width at break are measured.

50% elongation recovery rate: A sample having a width of 2 cm is grasped at an interval of 5 cm and a pulling speed of 10 cm / min.
Elongate 0% and immediately recover to full length at the same rate. The residual elongation percentage A% is obtained from the recorded load-elongation curve, and is calculated by the following equation. 50% elongation recovery rate = {(50−A) / 50} × 100
(%)

Softening temperature: The softening temperature of the nonwoven fabric is measured using a so-called "micro-melting point measuring apparatus" in which a sample is placed on a hot plate and the melting point is measured while the temperature of the hot plate is gradually raised. Specifically, about 5 mm on glass placed on a hot plate
A square product is placed, a prepared glass is placed on it, and measurement is performed at a constant rate of 3 ° C. per minute while heating at a constant speed. At that time, a load of about 500 g is applied from above the preparation, and the temperature at which the fiber diameter starts to be deformed by heat is defined as the softening temperature.

Softness: According to the 45 ° cantilever method of JIS L-1096.

Examples 1 and 2 Espansione (registered trademark of Kanebo Co., Ltd.) FF which is a polyurethane elastic nonwoven fabric having a basis weight of 100 g / m ^2.
And a 2.5 cm wide, 8 cm long sheet were placed on a hot press machine at 120 ° C at two places before and after the open end of the stocking.
(FIG. 1) to obtain a stocking (Example 1).
The used Espansione FF had the performance shown in Table 1 below. In addition, a similar polyurethane elastic non-woven fabric, Espansione (registered trademark of Kanebo Co., Ltd.) FF, having a width of 3.5 cm, was attached to the open end of the lace-knitted stocking (FIG. 2). Example 2).

[Table 1] All of these stockings did not feel uncomfortable to the touch even at the position where the nonwoven fabric was stuck, and did not feel uncomfortable when walking because of their elasticity. In addition, it was excellent in the effect of preventing sliding down, and was further excellent in air permeability and water permeability. Also, even when the wearer walked and washed repeatedly five times, it was not broken or peeled off, and the strength of the nonwoven fabric and the adhesive strength were excellent.

Examples 3 and 4 A high-sock made of a 2: 1 rib-knitted fabric of 50% cotton and 50% acrylic yarn, a 1.5 cm width,
Two pieces of the polyurethane elastic nonwoven fabric having a length of 5 cm used in Example 1 were attached to two places on the left and right sides (FIG. 3) at 120 ° C. of a hot press (Example 3). In addition, two polyurethane elastic nonwoven fabrics having a width of 7 mm and a length of 5 cm used in Example 1 were stuck to two places on the left and right sides at a total of four places with a hot press machine at 120 ° C. (FIG. 4) (Example 4). These high socks,
Similar to the stockings of Examples 1 and 2, there was no uncomfortable feeling at the affixing position of the nonwoven fabric, and there was no uncomfortable feeling during walking due to the elasticity. In addition, it was excellent in the effect of preventing sliding down, and was further excellent in air permeability and water permeability. Also, even when the wearer walked and washed repeatedly five times, it was not broken or peeled off, and the strength of the nonwoven fabric and the adhesive strength were excellent.

Example 5 A nonwoven fabric was produced by a melt blow method using a thermoplastic polyurethane elastomer comprising a polycarbonate-based diol, hexa "methylene diisocyanate and 1,4-butanediol. This product had the performance of Table 2 below.

[Table 2] This nonwoven fabric is made of 50% cotton and 50% acrylic mixed yarn 2:
A non-slip high sock was obtained by bonding the same high socks having the rib knitting structure to the same position as in Example 1 at 135 ° C. using a hot press machine. The high socks did not feel uncomfortable to the touch even at the position where the nonwoven fabric was stuck, and did not feel uncomfortable when walking because of the elasticity. In addition, it was excellent in anti-slip effect, and further excellent in air permeability and water permeability. In addition, even when the wearer walked and washed repeatedly five times, it was not broken or peeled off, and the strength of the nonwoven fabric and the adhesive strength were excellent.

The leg product of the present invention has a sufficient slip-preventing property. Moreover, unlike films, etc.,
Since the fibers in the non-woven fabric are melted and joined so as to wrap the loops of the knitted fabric of the leg product main body, the leg product itself retains its inherent air permeability and water permeability. Furthermore,
Since the nonwoven fabric itself has elasticity corresponding to the leg product fabric, it is a leg product that does not have a feeling of discomfort when worn and has excellent adhesive strength. In addition, it was comfortable to wear and did not have the unusual feeling unique to rubber like silicone. Further, even during storage, since the nonwoven fabrics are made of non-woven fabrics, they do not stick together and become hard to peel off.

[Brief description of the drawings]

FIG. 1 is an example showing an embodiment of the present invention.

FIG. 2 is an example showing an embodiment of the present invention.

FIG. 3 is an example showing an embodiment of the present invention.

FIG. 4 is an example showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Open end 2 Elastic nonwoven fabric 3 Stockings 4 Lace knitting part 5 High socks

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yukio Yamakawa 4-1 Kanebo-cho, Hofu-shi, Yamaguchi Prefecture Inside Kanebo Goden Co., Ltd. (72) Inventor Tsutomu Teshima 4-1 Kanebo-cho, Hofu City, Yamaguchi Prefecture Kanebo God Co., Ltd. F term (reference) 3B018 AA02 AB03 AC08 AD11

Claims (6)

[Claims] 1. A leg product wherein a nonwoven fabric made of elastic fiber is attached to at least a part of the leg portion. 2. The leg product according to claim 1, wherein the nonwoven fabric is a stretchable nonwoven fabric, and the elastic fiber is a stretchable nonwoven fabric which is self-adhesive and mutually bonded. 3. The leg product according to claim 1, wherein the elastic fibers constituting the nonwoven fabric are mainly made of thermoplastic polyurethane. 4. The nonwoven fabric has a basis weight of 25 to 300 g.
/ M ^2. The leg product according to any one of claims 1 to 3, wherein 5. The softening temperature of the nonwoven fabric is 70 to 150 ° C.
The leg product according to any one of claims 1 to 4, wherein 6. The leg product according to claim 1, wherein the nonwoven fabric is stuck around an opening of the leg portion.