JP3072573U - Sweat pad - Google Patents

Abstract

(57) [Summary] [Problem] To provide a sweat-absorbing pad that can effectively absorb sweat from the armpit when worn on the armpit, and that is hard to be worn on the attachment site. SOLUTION: A moisture permeable sheet, a waterproof sheet adhered to a peripheral portion of the moisture permeable sheet at a peripheral portion, and a space formed by the moisture permeable sheet and the waterproof sheet. A sweat-absorbing pad comprising: a water-absorbing material accommodated therein; and a sticking portion formed on a peripheral portion of an outer surface of the moisture-permeable and water-permeable sheet.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a sweat-absorbing pad, and more particularly, to a sweat-absorbing pad that can be effectively worn by wearing under the armpits to prevent clothes from being stained or giving off an unpleasant smell.

[0002]

[Prior art]

 Especially in the summer, the underarm sweats intensely, and the underarm sweat often causes the clothes to become dirty or to give off a bad smell.

For the purpose of solving the above-mentioned problems, various sweat-absorbing pads to be worn under the armpits have been proposed.

As such a sweat-absorbing pad, for example, a moisture-absorbing / water-retaining layer made of a polymer water-absorbing body is formed on a base layer made of a stretchable sheet material having a waterproof and breathable property, and the free surface of the moisture-absorbing / water-retaining layer is formed on There is a sweat-absorbing pad (U.S. Pat. No. 2,549,137) in which a breathable water-absorbing / adhesive layer is formed of a pressure-sensitive adhesive sheet material containing at least an antibacterial / deodorant and having elasticity and breathable water-absorbing properties.

[0005]

[Problems to be solved by the invention]

 However, in the above-mentioned sweat-absorbing pad, there is a problem that the armpit is easily rashed by the adhesive material in the ventilated water-absorbing / adhesive layer because the air-permeable water-absorbing / adhesive layer comes into contact with the sweating part under the armpit. Further, the vented water-absorbing / adhesive layer has a problem in permeability to water such as sweat and water vapor.

The present invention has been made in consideration of the above-described circumstances, and has as its object to provide a sweat-absorbing pad that can effectively absorb sweat from the armpit when worn on the armpit, and that is hardly rash when worn.

[0007]

[Means for Solving the Problems]

 The invention according to claim 1 provides a moisture-permeable and water-permeable sheet, a waterproof sheet adhered to the periphery of the moisture-permeable and water-permeable sheet at a peripheral edge, and the moisture-permeable and water-permeable sheet and the waterproof sheet. A water-absorbing material housed in a space formed by the moisture-permeable sheet, and a sticking portion formed on a peripheral portion of an outer surface of the moisture-permeable sheet. is there.

The invention according to claim 2 is a sweat-absorbing pad in which the space is divided into two or more sections, and the water-absorbing material is housed inside each of the sections.

[0009]

[Embodiment of the invention]

 1. First Embodiment FIG. 1 shows a sweat-absorbing pad according to a first embodiment. FIG. 2 is a cross-sectional view of the sweat-absorbing pad according to the first embodiment, taken along a plane XX in FIG.

As shown in FIGS. 1 and 2, the sweat-absorbing pad 10 has an oval shape, in other words, an oval-shaped planar shape as a whole, and a moisture-permeable and water-permeable sheet 1 having an oblong planar shape. The moisture permeable sheet 1 and the waterproof sheet 3 having substantially the same planar shape and size as the moisture permeable sheet 1 are adhered to each other at the peripheral edge to form an adhesive portion 7.

A water absorbing material 2 is accommodated in a space 5 formed between the moisture-permeable sheet 1 and the waterproof sheet 3.

As shown in FIG. 1 (A) and FIG. 2, the outer surface of the moisture-permeable and water-permeable sheet 1, that is, the peripheral surface of the surface opposite to the side where the water-absorbing material 2 contacts, is continuous. A band-shaped sticking portion 4 is formed. A release paper 4A (omitted in FIG. 1) is adhered to the surface of the adhering portion 4 so as not to adhere to other sweat-absorbing pads and to prevent dust or the like from adhering. In FIG. 1A, the release paper 4A is omitted.

The planar shape of the sweat-absorbing pad 10 is not limited to an oval, and may have a planar shape such as a so-called egg shape, a circle, a polygon, a rectangle, a square, or a triangle. In a sweat pad having a planar shape such as a polygon, a rectangle, a square, or a triangle, a shape with rounded corners is preferable.

[0014] The size of the sweat-absorbing pad is usually about 8 to 20 cm in major axis and about 5 to 10 cm in minor axis, but it can sufficiently cover the armpits and does not cause discomfort or discomfort when worn. If there is, there is no particular limitation.

The moisture-permeable and water-permeable sheet 1 has a function of permeating water vapor and sweat escaping from the armpits to the water-absorbing material 2 almost without adsorbing the water-absorbing material 2 and not returning the moisture adsorbed by the water-absorbing material 2 toward the armpits. Sheet.

Examples of such a sheet include non-water-absorbing non-woven fabrics that exhibit almost no water-absorbing properties, porous poly-woven fabrics such as polyolefin non-woven fabrics such as polyethylene non-woven fabric, polypropylene non-woven fabric, and ethylene-propylene copolymer non-woven fabric, and polyester non-woven fabrics. Weaving of porous polyolefin films such as Tylene film, porous propylene film and porous ethylene / propylene film, porous plastic films such as Gore-Tex (trade name), and non-water-absorbing fibers such as polyethylene fiber and polypropylene fiber Cloth and the like.

The water absorbing material 2 has a function of absorbing and retaining water vapor and sweat that have passed through the moisture permeable sheet 1. The water-absorbing material 2 can be formed of one or more materials selected from water-absorbing polymers such as crosslinked polyacrylic acid, metal salts of polyacrylic acid, and bridged polyacrylamide, pulp, and cotton. As the water-absorbing polymer, those having any form such as a powder, a sheet, and a fiber before water absorption can be used. In addition, a woven cloth holding the powder of the water-absorbing polymer between the textures, a combination of the water-absorbing polymer and pulp, and a combination of the water-absorbing polymer and cotton can also be used as the water-absorbing material 2.

As the water-absorbing material 2, a water-absorbing polymer, a woven cloth holding the powder of the water-absorbing polymer between the textures, a combination of the water-absorbing polymer and pulp, and a combination of the water-absorbing polymer and cotton absorb water. This is particularly preferable because it becomes jelly-like and the absorbed moisture does not exude even when pressure is applied.

The water-absorbing material 2 is adhered to the moisture-permeable and water-permeable sheet 1 or the waterproof sheet 3 so that the water-absorbing material 2 does not move inside the space 5, or the moisture-absorbing material 1 and the water-absorbing material 2 are waterproofed. The sheet 3 may be sewn together.

The waterproof sheet 3 has a function of preventing the water absorbed by the water absorbing material 2 from oozing out, and can be specifically formed of a non-permeable sheet. The water-impermeable sheet is formed of a polyolefin such as polyethylene, polypropylene and ethylene-propylene resin, and a soft plastic such as a soft vinyl chloride resin and a vinyl chloride resin such as a vinyl chloride-vinyl acetate copolymer. Sheet.

The shape of the waterproof sheet 3 is preferably substantially the same as that of the moisture-permeable sheet 1. In the sweat-absorbing pad 10, the size of the waterproof sheet 3 is the same as that of the moisture-permeable sheet 1, but may be larger or smaller than the moisture-permeable sheet 1. However, the size is preferably such that the moisture-permeable sheet 1 and the peripheral portion can be bonded to each other.

The waterproof sheet 3 and the moisture-permeable and water-permeable sheet 1 are bonded at a peripheral portion. Examples of a method of bonding the waterproof sheet 3 and the moisture-permeable sheet 1 include heat fusion, adhesion with an adhesive, and connection by sewing.

Since the waterproof sheet 3 faces outward when worn under the armpit, it is preferable that the waterproof sheet 3 be colored in a color that is close to the color of human skin and is inconspicuous when worn, such as pale pink or wheat color. .

The sticking portion 4 can be formed by applying an adhesive to a peripheral portion of the surface of the moisture-permeable sheet 1 opposite to the side on which the water-absorbing material 2 is formed. The width of the sticking portion 4 is usually in the range of 5 to 10 mm, but can be appropriately determined according to the size of the sweat absorbing pad 10 and the like.

Examples of the pressure-sensitive adhesive include pressure-sensitive adhesives commonly used for medical and hygiene purposes. Specifically, acrylic pressure-sensitive adhesives, natural rubber-based pressure-sensitive adhesives, styrene-butadiene rubber-based pressure-sensitive adhesives, And styrene / isoprene / styrene copolymer-based pressure-sensitive adhesives.

The adhesive portion 4 can also be formed by attaching a double-sided adhesive tape to the peripheral portion. Examples of the double-sided pressure-sensitive adhesive tape include those obtained by applying an acrylic pressure-sensitive adhesive or a natural rubber-based pressure-sensitive adhesive on both sides of rayon paper.

When the sweat-absorbing pad 10 is worn under the armpit, after the release paper 4A is peeled off, the sticking section 4 is attached to the armpit so that the moisture-permeable sheet 1 comes into contact with the sweating area under the armpit. Therefore, the water-absorbing material 2 is held in close contact with the perspiration site via the moisture-permeable and water-permeable layer 1, and the waterproof sheet 3 is held so as to face outward.

Therefore, the water vapor and sweat escaping from the sweating area under the armpit pass through the moisture-permeable and water-permeable sheet 1 and are immediately absorbed and held by the water-absorbing material 2, so that the sweat accumulates in the sweating area, The sweating area does not get stuffy.

Moreover, even when a large amount of water such as sweat and water vapor is adsorbed on the water absorbing material 2, the adsorbed water is prevented from oozing out of the sweat absorbing pad 10 by the waterproof sheet 3.

Therefore, according to the sweat-absorbing pad 10, the performance of absorbing sweat and water vapor is maintained for a long time, and the sweat and the like absorbed by the water absorbing material 2 do not return to the armpit through the moisture-permeable and water-permeable sheet 1. Therefore, a comfortable wearing feeling is maintained for a long time. In addition, the absorbed sweat does not leak to the outside to stain the clothes or cause an unpleasant odor.

Moreover, since the sticking portion 4 is formed on the peripheral portion of the moisture-permeable sheet 1, the sweating portion under the side does not hit the sticking portion 4. Therefore, the perspiration site is not rashed by the pressure-sensitive adhesive, and the perspiration and the diffusion of water vapor are not hindered by the pressure-sensitive adhesive. Further, there is little pain when removing the sweat absorbing pad 10 after use. 2. Second Embodiment FIG. 3 shows a sweat-absorbing pad according to a second embodiment, and FIG. 4A shows a cross section of the sweat-absorbing pad in a direction along a plane YY in FIG. 3, that is, in a longitudinal direction. A cross section in the direction along the plane ZZ in FIG. 3, that is, a cross section in the width direction is shown in FIG. In FIGS. 3 and 4, unless otherwise specified, the same reference numerals as those in FIGS. 1 and 2 indicate the same elements as those shown in FIGS. 1 and 2.

As shown in FIGS. 3 and 4, the sweat-absorbing pad 20 has a generally rectangular planar shape with rounded corners.

The moisture-permeable sheet 1 and the waterproof sheet 3 are adhered to each other at the peripheral edge, similarly to the sweat-absorbing pad according to the first embodiment, and a space for accommodating the water-absorbing material 2 is formed therebetween. . At the outer peripheral portion of the moisture-permeable sheet 1, a sticking portion 4 is formed. A release paper 4A (omitted in FIG. 3) is adhered to the surface of the adhering portion 4 similarly to the sweat-absorbing pad according to the first embodiment. The width of the sticking portion 4 is the same as that of the sweat-absorbing pad according to the first embodiment.

The sweat-absorbing pad 20 is formed with a grid-like heat-sealed portion 6, and the heat-sealed portion 6 divides the space 5 into four in the longitudinal direction and two in the width direction, for a total of eight spaces. It is divided into sections. The heat-sealed portion 6 of the sweat-absorbing pad 20 may be formed in a straight line as shown in FIG. 3, or may be formed in a dotted line or a broken line. In each of the eight spaces 5a to 5h, a water absorbent 2a to 2h similar to the absorbent 2 in the sweat pad according to the first embodiment is accommodated.

For example, the sweat-absorbing pad 20 is formed by laminating the moisture-permeable sheet 1 and the waterproof sheet 3 and heat-sealing them in a grid pattern to form the heat-sealed portions 6 and the spaces 5 a to 5 h. After the water absorbing materials 2a to 2h are accommodated in each of the water-permeable sheets 1 to 5h, the moisture-permeable and water-permeable sheet 1 and the waterproof sheet 3 are bonded at the peripheral edges by heat sealing or the like. Further, the moisture-permeable and water-permeable sheet 1 and the waterproof sheet 3 are bonded to each other at the peripheral portion, and the water-absorbing material 2 is accommodated in the space formed between the sheets. Then, the heat-absorbing pad 6 may be formed by heat-sealing the sweat-absorbing pad in a grid pattern as shown in FIG.

When the sweat-absorbing pad 20 is worn under the armpit, the release paper 4A is peeled off and the outer surface of the moisture-permeable sheet 1 is placed under the armpit, similarly to the sweat-absorbing pad according to the first embodiment. The sticking part 4 is stuck under the armpit so as to come into contact with the sweating part.

As described above, since the space for accommodating the water-absorbing material of the sweat-absorbing pad 20 is divided into eight sections, the water-absorbing material 2 is held in the sections.

Therefore, in addition to the features of the sweat-absorbing pad according to the first embodiment, the sweat-absorbing pad 20 also has the advantage that the water-absorbing ability does not decrease due to the displacement of the water-absorbing material 2. 3. Third Embodiment FIG. 5 shows a sweat-absorbing pad according to a third embodiment. FIG. 6 shows a cross section of the sweat-absorbing pad cut along a plane XX in FIG. 5 and 6, the same reference numerals as those in FIGS. 1 and 2 indicate the same elements as those shown in FIGS. 1 and 2.

As shown in FIG. 5, the sweat-absorbing pad 30 has an elliptical planar shape similarly to the sweat-absorbing pad according to the first embodiment. The waterproof sheet 3 is heat-sealed in an oval shape along the bonding portion 7 at a portion inside the bonding portion 7 to form a dashed heat-sealing portion. The heat seal portion 8 may be formed in a dotted line or a continuous line. The space 5 is divided into a portion between the bonding portion 7 and the heat seal portion 8 and a portion surrounded by the heat seal portion 8 by the heat seal portion 8.

The sweat-absorbing pad 30 has the same configuration as the sweat-absorbing pad according to the first embodiment, except that the heat-sealing portion 8 is formed.

In the sweat-absorbing pad 30 as well, the water-absorbing material 2 is fixed to the moisture-permeable and water-permeable sheet 1 and the waterproof sheet 3 by the heat-sealing portion 8. The water absorption capacity does not decrease due to the movement, and the wearing feeling does not deteriorate.

Further, since the sweat-absorbing pad 30 does not bend at the heat-sealing portion 8 when worn, the feeling of wearing is further improved as compared with the sweat-absorbing pad according to the second embodiment.

[0043]

[Effect of the invention]

 According to the present invention, the underarm is not rashed by the adhesive, and sweat and water vapor from the underarm are effectively adsorbed, and further, the adsorbed sweat and water vapor do not contaminate the clothes or emit off-flavors. A sweat pad is provided.

[Brief description of the drawings]

FIG. 1 is a plan view showing a sweat-absorbing pad according to a first embodiment of the present invention as viewed from a moisture-permeable and water-permeable sheet side and a waterproof sheet side.

FIG. 2 shows the sweat-absorbing pad shown in FIG.
It is sectional drawing which shows the cross section cut | disconnected along -X.

FIG. 3 is a plan view showing the sweat-absorbing pad according to the second embodiment of the present invention as viewed from the moisture-permeable sheet and the waterproof sheet.

FIG. 4 is a plane Y of the sweat-absorbing pad shown in FIG. 3;
It is sectional drawing which shows the cross section cut | disconnected along -Y and plane ZZ.

FIG. 5 is a plan view showing the sweat-absorbing pad according to the third embodiment of the present invention as viewed from the moisture-permeable sheet and the waterproof sheet.

FIG. 6 shows the sweat-absorbing pad shown in FIG.
It is sectional drawing which shows the cross section cut | disconnected along -X.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 moisture-permeable and water-permeable sheet 2 water-absorbing material 3 waterproof material 4 sticking part 5 space 10 sweat-absorbing pad 20 sweat-absorbing pad 30 sweat-absorbing pad

Claims (2)

[Utility model registration claims] 1. A space formed by a moisture-permeable and water-permeable sheet, a waterproof sheet adhered to a peripheral edge of the moisture-permeable and water-permeable sheet at a peripheral edge, and a space formed by the moisture-permeable and water-permeable sheet and the waterproof sheet. A sweat absorbing pad comprising: a water-absorbing material accommodated in the water-permeable sheet; and a sticking portion formed on a peripheral portion of an outer surface of the moisture-permeable sheet. 2. The device according to claim 1, wherein the space is divided into two or more sections, and the water absorbing material is accommodated in each of the sections.
Sweat-absorbing pad described in