KR100769864B1 - Sanitary shorts - Google Patents

Abstract

 In the conventional sanitary panties, the warming effect is bad, the blood circulation worsens due to the coldness of the lower abdomen and the lower back, and it is easy to cause poor physical condition due to lower abdominal pain or low back pain.

In the present invention, at least a portion of the lower abdomen and / or the waist contacting the inner side of the panty body 40 has a lower heat consumption than the panty body 40. Thereby, a heat retention effect can be heightened and the coldness of a lower abdomen and a waist can be alleviated.

Description

Sanitary panties {SANITARY SHORTS}

1 is a perspective view showing the sanitary panties of the embodiment of the present invention.

2 is an exploded view of the menstrual panties of FIG.

3 is an exploded view of the sanitary panties of another embodiment.

4 is an exploded view of the sanitary panties of another embodiment.

<Explanation of symbols for main parts of drawing>

11: ahead

21: back road

13: crotch

15: Body circumference

16: bridge opening

18: non-stretchable member

20: thermal insulation cloth

25: sanitary napkin

40: body shorts

The present invention relates to a sanitary panty having a crotch portion to which a sanitary napkin is to be mounted and having a high thermal insulation effect at a part that is in contact with the lower abdomen and the like.

Conventional sanitary panties are formed of a breathable material mainly made of nylon and the like, and measures to secure breathability of the crotch portion, which is a mounting portion of the sanitary napkin, to suppress sores and rashes have been taken.

However, the conventional sanitary panties are formed entirely of the above-mentioned breathable material, and are also thin fabrics, so that the lower abdomen and waist are easily cooled, and blood circulation deteriorates. Particularly during menstruation, if the lower abdomen or lower back becomes cold, blood circulation disorders of the vascular motor nerves cause lower abdominal pain or lower back pain, which makes it easier to be in poor physical condition.

Conventionally, in order to improve blood circulation and relieve pain, methods such as overlapping or warming the lower abdomen and waist by a circuit have been taken.

However, when it is overlapped, the waist circumference becomes thick and the appearance is lost, and when a circuit is used, only a body part in contact with the circuit becomes hot locally, which causes a low temperature burn or the like.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a panty which can enhance the warming effect by providing a warming area in a portion which is in contact with the lower abdomen and the waist.

The present invention provides a sanitary panty having a front body, a rear body, a crotch portion, a body circumference portion formed at an upper edge portion of the front body and the rear body, and a pair of leg openings,

At least one of the parts contacting the lower abdomen and the lower part contacting the lower abdomen and the lower part contacting the waist is provided with a heat insulating area having less calories (kcal / m ² · hr) than other areas of the panty. It is characterized by.

For example, the heat insulating cloth which forms the said heat insulation area | region is provided inside the panty main body which forms a front body and a back body.

It is preferable that the amount of heat consumed in the said thermal insulation area | region is 70% or less with respect to the heat consumption of regions other than the thermal insulation area | region of panties.

For example, a crosslinking acrylate resin to which a polyvalent metal salt that generates heat by hydration heat is added to at least part of the heat insulating region.

The crosslinked acrylate resin has a moisture content of 20% or more in an environment where the temperature is 20 ° C and the relative humidity is 65%.

In addition, when providing the said heat insulating cloth, it is preferable that a raising process is given to this heat insulating cloth, and the specific volume of the said insulating cloth becomes 1.8 times or more with respect to the specific volume of a panty main body.

In the present invention, as described above, a thermal insulation cloth is provided in a portion of the pant main body that is in contact with the lower abdomen and / or a portion of the panty body which is in contact with the lower abdomen to form a heat retaining area, or the fiber containing the crosslinked acrylate resin is partially contained in the panty body. Since the heat insulation area is formed by woven into the fabric or by partially processing the cloth of the panty body, the heat retention effect can be enhanced to suppress cold air in the lower abdomen and waist.

In addition, since the panties of the present invention ensure breathability, soaking can be prevented.

The polyvalent metal salt added to the cross-linked acrylate is composed of one or two or more salts selected from nitrates, hydrochlorides or sulfates of polyvalent metals such as Ca, Mg and Al. For example, when moisture such as sweat from the body is absorbed by the insulating cloth, H ₂ O is strongly attracted by the charge of these polyvalent metal ions, so-called hydration occurs. When hydration occurs, a large amount of energy is released and heat is generated, thereby enhancing the thermal insulation effect.

Moreover, if the said heat insulating cloth is given the raising process, the warmed air will collect | collect between the said raising and it can further improve a heat insulation effect.

1 is a perspective view showing the sanitary panties of the embodiment of the present invention, Figure 2 is a development view showing the inner side of the panties. In FIG. 2, the Y direction in which the front roadway 11, the crotch part 13, and the rear roadway 12 are continuous is made vertical, and the X direction orthogonal to this is made the horizontal direction.

The sanitary panties in this invention are equipped with the panty main body 40 which forms the front body 11, the back body 12, and the crotch part 13. The side edge 11a of the front length 11 of the panty main body 40 and the side edge 12a of the rear length 12 are joined, and the side edge 11b and the rear length 12 of the front length 11 are joined. When the side edge 12b of the () is joined, the trunk | drum circumference part 15 and leg opening part 16 and 16 are formed.

It is preferable that the said panty main body 40 in this invention is formed from a breathable material with a favorable touch. The panty main body 40 is formed of fibers mainly composed of nylon. Moreover, in order to improve the elastic stretchability of the said panty main body, it is preferable to add a polyurethane fiber. Moreover, in order to improve water absorption and heat retention, it is preferable to add cotton fiber.

For example, the panty body 40 is woven fabric of nylon fiber yarn 61% by mass, polyurethane fiber yarn 9% by mass, cotton 22% by mass, polynosic 4% by mass, acrylate fiber yarn 4% by mass. Is formed. Here, the said acrylate fiber is a copolymer of acrylonitrile and monomers, such as an acrylate ester. In addition, it is preferable that the breathable waterproof cloth 18 is bonded to the crotch portion 13.

As shown in FIGS. 1 and 2, a heat insulating cloth 20 is disposed at a portion 11c of the front length 11 of the panty body 40 that contacts the lower abdomen and 12c of the rear length 12 that contacts the waist. It becomes the heat retention area sewn together.

The thermal insulation cloth 20 is a woven fabric having a small amount of calories (kcal / m ² · hr) as compared to the fabric constituting the panty body 40.

By laminating the thermal insulation cloth 20 on the panty main body 40, it is possible to increase the thermal insulation effect, to suppress coldness of the lower abdomen and waist, and to improve blood circulation. By improving blood circulation, you can relieve lower abdominal pain or back pain, especially during menstruation.

In addition, the thermal insulation cloth 20 is provided only at a portion contacting the lower abdomen and the waist of the panty body 40. Therefore, the breathability of the overall panty main body 40 is not impaired. In particular, since the peripheral region of the crotch portion 13 is formed of a breathable material, soaking around the portion on which the sanitary napkin 25 is mounted can be prevented.

In FIG. 2, since the lower edges 20a and 20a of the insulating cloth 20 are bent in a V shape and extend toward the crotch portion 13, the insulating cloth 20 is not breathable. This good area is secured as wide as possible, and the V-shaped lower edges 20a and 20a can cover the lower abdomen with a large area. In addition, the said thermal insulation cloth 20 may be formed in rectangular shape, and may be joined to the panty main body 40 by the longitudinal direction toward the X direction as shown.

In addition, as shown in FIG. 3, even if the said insulating cloth 20 is joined only from the right edge 11a of the front road 11 to the left edge 11b, and is not joined to the back road 12, good. In this embodiment, since the said thermal insulation cloth 20 contacts a lower abdomen when wearing panties, the thermal insulation effect to the said lower abdomen can be improved. On the contrary, the thermal insulation cloth 20 may be provided only on the rear road 12, in which case, the thermal insulation effect on the waist can be enhanced.

Alternatively, as shown in FIG. 4, the insulating cloth 20 may be joined only to the center portion of the front roadway 11. Similarly, the thermal insulation cloth 20 may be joined only to the center portion of the rear path 12. By this, when the panties are worn, the insulating cloth 20 abuts on the lower abdomen or waist, thereby enhancing the thermal insulation effect on the lower abdomen and waist.

The thermal insulation cloth 20 is formed of a yarn in which crosslinked acrylate fibers and acrylic fibers are mixed. The mass ratio in the yarn is 30% for the crosslinked acrylate fibers, 70% for the acrylic fibers, and about 192 dtex. The thermal insulation cloth 20 is a woven fabric formed only of the blended yarns, or a woven fabric formed of other fibers such as the blended yarns and cotton.

The resin forming the crosslinked acrylate fiber has a copolymer of acrylonitrile (CH ₂ = CH-CN) and methyl acrylate as a monomer as a main component. Other examples of the monomers include sulfonic acid-containing monomers such as vinyl halide, vinylidene halide and p-styrene sulfonic acid, salts thereof, and carboxylic acid-containing monomers such as itaconic acid, salts thereof, acrylamide, styrene, and vinyl acetate. Can be mentioned.

In the crosslinking acrylate fiber of the present invention, the acrylate is subjected to hydrazine treatment, and the nitrile group (-CN) is crosslinked to form a crosslinking type. Examples of the hydrazine (NH ₂ —NH ₂ ) include water-added hydrazine, hydrazine sulfate, and the like.

In addition, a part of the remaining nitrile group is converted into a carboxyl group (-COOH) by the hydrolysis treatment, and the remaining nitrile group is converted into an amide group (-CONH ₂ ). This conversion process can be performed by accommodating base aqueous solutions, such as alkali metal hydroxide and ammonia, and strong acid. And the cross-linked acrylate fiber is adjusted to pH 4.0 to 7.0, a part of the carboxyl group is a metal salt to which one or two or more salts selected from nitrates, hydrochlorides, sulfates of polyvalent metals such as Ca, Mg, Al do.

The pH is adjusted to 4.0 to 7.0 because part of the carboxyl group is in a dissociated state, and the conversion to the metal salt evenly inside the fiber is carried out uniformly and quickly.

The chemical structure which shows briefly the crosslinked structure of the crosslinkable acrylate resin of this invention is shown in General formula (1).

Formula 1 has main chains 42 and 43 formed by polymerization of acrylonitrile and other monomers, and these main chains are crosslinked by crosslinks A and B. Crosslinking A is a portion to which the nitrile group is crosslinked by hydrazine treatment. In addition, bridge | crosslinking B is a part into which the part converted into the carboxyl group became metal salt by the nitrate of polyvalent metal M, etc.

Since the crosslinking acrylate resin contains the polyvalent metal M, when moisture in the air, sweat, or the like is absorbed by the acrylic fiber, the moisture is strongly attracted to the polyvalent metal ions, so-called hydration phenomenon occurs. Energy is released by this hydration and heat is generated, so that the heat insulation effect of the said heat insulating cloth 20 becomes high.

In addition, the cross-linked acrylate resin can obtain a moisture content of 20% or more in an environment of temperature 20 ℃, 65% relative humidity. Therefore, the thermal insulation cloth 20 is warm, and the skin easily feels warm by this warmth.

The resin for forming the acrylic fiber forming the blended yarn is an addition polymer of acrylonitrile.

In addition, it is preferable that the said insulation cloth 20 raises specific volume by raising a raising process. Thus, by using the heat insulating cloth 20 raised on the surface which contacts skin, warm air collects between nappings, and this can further improve a heat insulation effect.

Moreover, in this invention, the thread or fiber containing the said crosslinkable acrylate resin may be incorporated in the heat insulation area | region which is a part of panty main body, or a part of the panty main body is processed by the said crosslinking | crosslinked acrylate resin, and the heat insulation area | region May be formed.
Example

Insulating cloth 20, which is an embodiment, is a mixed yarn of crosslinked acrylate fibers and acrylic fibers formed of a crosslinkable acrylate resin represented by Formula 1 (70% by mass of crosslinked acrylate, 30% by mass of acrylic: 192 dtex) As a woven fabric formed of, the surface was brushed. As shown in Table 1, the thickness was 2.2 mm, basis weight 174 g / m ² , and specific volume 12.6 cm ³ / g.

The woven fabric forming the panty main body 40 has 33 mass% of nylon fiber yarn of 33 dtex, 9 mass% of polyurethane fiber yarn of 22 dtex, 22 mass% of cotton yarn of 80/1 number, 4 mass% of polynostic, and acrylic 4% of latex fiber is included. The acrylate is not a crosslinked copolymer of acrylonitrile and acrylate ester.

As shown in Table 1, the woven fabric forming the panty main body 40 was 0.79 mm thick, basis weight 129 g / m ² , and specific volume 6.13 cm ³ / g.

In addition, in Table 1, the said thickness, basis weight, and specific volume are measured and shown in what superimposed the thermal insulation cloth 20 on the panty main body 40. FIG.

In addition, the amount of heat consumed was measured about what laminated | stacked the panty main body, the thermal insulation cloth, and the panty main body and the thermal insulation cloth.

(Measurement method of calories consumed)

Simulated sweat is supplied to the six simulated sweat holes formed in the hot plate by a water intermittent discharge pump. A mock skin made of polyester fabric is placed on the hot plate to spread mock sweat on the mock skin. This mock sweat used water. A measurement sample such as the thermal insulation cloth is cut into a size of 13 cm × 9 cm and placed on the simulated skin. And the simulation sweating was continued for 20 minutes, and the average value of the amount of heat radiation measured every 5 minutes was calculated | required.

The temperature of the hot plate was 37 ° C., the simulated sweating rate was 0.68 mg / cm ² / min, the measurement environment was 32 ° C., the total humidity was 68%, and the air flow was 15 m / sec or less.

Panties body Thermal insulation cloth Panty body + thermal insulation cloth (two layers) thickness mm 0.79 2.2 2.92 Basis weight g / m ² 129 174 303 Specific volume cm ³ / g 6.1 12.6 9.6 Calories consumed kcal / m ² · hr 186 126 109

The amount of heat consumed is in the part where the panty body 40 sewed the thermal insulation cloth 20 to 186 (kcal / m ² · hr), the thermal insulation cloth 20 was 126 (kcal / m ² · hr), and the panty body 40. 109 (kcal / m ² · hr).

The heat consumption of the thermal insulation cloth 20 is lower than the heat consumption of the panty body 40. Therefore, the thermal insulation cloth 20 is not easily deprived of heat as compared to the panty body 40. It can be seen that it is excellent.

The heat consumption of the thermal insulation cloth 20 is 70% or less of the heat consumption of the panty main body 40, and according to the invention, it is possible to appropriately enhance the thermal insulation effect.

In the panties in which the thermal insulation cloth 20 is bonded to the panty main body 40, the heat consumption is lowered to 109 (kcal / m ² · hr). Thus, by adopting such a superimposed structure, the panty main body 40 and the thermal insulation cloth 20 are provided. Synergistic warming effect can be obtained.

Next, the maximum heat flux, the air permeability, and the porosity of the samples were examined. In the sample used in this experiment, the thermal insulation cloth 20 is the same as in Table 1, but the panty main body 40 has a thickness of 0.89 mm, basis weight of 165 g / m ² , specific volume of 5.4 cm ³ / g, and consumption of heat. 198 (kcal / m ² · hr).

The maximum heat flux of the panty body 40 was 0.038 (cal / cm ² · sec), while the maximum heat flux of the thermal insulation cloth 20 was 0.02 (cal / cm ² · sec). As the maximum heat flow rate is smaller, the instantaneous warmth of the contact is felt, and therefore, it can be seen that the thermal insulation cloth 20 has a higher contact warmth than the panty main body 40.

In addition, while the breathability of the panty main body 40 was 103 (cc / cm ² · sec), the breathability of the thermal insulation cloth 20 was 190 (cc / cm ² · sec). Since the air permeability is so large that it is good, it turns out that the heat insulation cloth 20 has better air permeability than the panty main body 40. FIG.

Next, while the porosity of the panty body 40 was 85%, the porosity of the thermal insulation cloth 20 was 93%. In this way, the insulation cloth 20 has a higher porosity than the panty body 40, so that the warmth when contacted is more than that of the panty body 40.

As described above, in the physiological panties of the present invention, the heat retention effect can be enhanced by forming a heat insulation region having lower calorie content than the panty body in the lower abdomen and / or the part contacting the lower back, so that lower abdominal pain and cold of the waist It can be suppressed. Therefore, blood circulation can be promoted during menstruation and the like, and lower abdominal pain and back pain can be alleviated.

In particular, in the present invention, since at least part of the heat insulating region is used a cross-linked acrylate resin to which a polyvalent metal salt is generated by heat of hydration, the heat insulating cloth generates heat when moisture or sweat in the air reaches it. It is possible to increase the thermal effect.

Claims (7)

In the sanitary panties having a front body, a rear body, a crotch part, a body circumference formed at the upper edge of the front body and the rear body, and a pair of leg openings, In the part which abuts a lower abdomen, or the part which abuts a waist, or the part which abuts a lower abdomen, and the part which abuts a waist, the heat insulation area | region which consumes less calories (kcal / m <^2> hr) than other areas of panties is provided, A part or all of said heat retention area | region is provided with the crosslinking | crosslinked acrylate resin to which the polyvalent metal salt which generate | occur | produces by the heat of hydration is provided, The sanitary panties characterized by the above-mentioned. The sanitary panty according to claim 1, wherein a heat insulating fabric for forming the heat insulating region is provided inside the panty body forming the front and back lengths. The sanitary panty according to claim 1, wherein the calorie consumed in the warmed region is 70% or less with respect to the calorie consumed in a region other than the warmed region of the panty. delete The sanitary panty according to claim 1, wherein the crosslinkable acrylate resin has a moisture content of 20% or more in an environment of a temperature of 20 ° C and a relative humidity of 65%. The sanitary panty according to claim 2, wherein the thermal insulation cloth is subjected to a napping treatment. The sanitary panty according to claim 2 or 6, wherein the specific volume of the insulating cloth is 1.8 times or more relative to the specific volume of the panty body.

Images