KR100776225B1 - Sanitary shorts - Google Patents

Abstract

In the conventional physiological shorts, activated carbon or the like is used to exert a deodorizing effect. However, physical adsorption by activated carbon or the like only adsorbs a specific substance. For example, both basic gases such as ammonia and acidic gases such as lower fatty acids may be used. The irritating odor could not be fully adsorbed.

The stretchable fabric 20 forming the shorts is tricot half knit with the polyurethane fiber thread 31 and the nylon fiber thread 32, and a loop 33 is formed on the skin side, and this loop ( A fiber chamber 35 having a deodorizing function is incorporated in 33). This fiber chamber 35 contains the fiber which exhibits deodorization function by pH adjustment, and can exhibit the outstanding deodorizing effect with respect to basic gas and acidic gas.

Description

Menstrual shorts {SANITARY SHORTS}

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the menstrual shorts of embodiment of this invention.

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

3 is an enlarged view showing the stretchable fabric forming the menstrual shorts from the outside;

<Explanation of symbols for the main parts of the drawings>

11: ahead

12: back road

13: crotch

15: body circumference

16: leg opening

20: stretch fabric

31: polyurethane fiber thread

32: nylon fiber thread

33: loop

35: fiber yarn with deodorant function

This invention relates to the sanitary shorts formed from the cloth in which the fiber which exhibits deodorizing function by pH adjustment was woven.

Conventional sanitary shorts are made of a breathable material mainly made of nylon and the like, while ensuring breathability of the crotch portion, which is a mounting portion of the sanitary napkin, and measures to deodorize by incorporating the physical adsorbent material represented by activated carbon into the shorts. I was losing.

However, by physical adsorption, only a specific substance is adsorbed, and the irritating odor of both basic gas such as ammonia and acidic gas such as lower fatty acid cannot be completely adsorbed.

In addition, since the adsorption power is limited by physical adsorption, an effective deodorizing effect cannot be obtained when the physiological shorts are used for a long time.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a physiological shorts which can enhance the deodorizing effect by using a fiber provided with a deodorizing function by adjusting pH to a cloth forming the shorts.

The present invention is a physiological use for which the front body, the rear body and the crotch are formed of elastic cloth, and have a torso circumference and a pair of leg openings formed at the upper edges of the front and rear body, and the crotch is a mounting part of the sanitary napkin. In shorts,

The stretchable fabric includes elastic fibers and fibers exhibiting a deodorizing function, and the fibers exhibiting the deodorizing function are interwoven so as to appear only on the skin side of the stretch fabric or appear more on the skin side than outside. It is to be done.

For example, the fiber exhibiting the deodorizing function is a cross-linked acrylate having at least partly formed by crosslinking by hydrazine treatment and a carboxyl group, and the pH is adjusted within the range of 4.0 to 7.0.

According to this invention, when basic gas, such as ammonia gas, arises, pH adjustment by neutralization is performed between the carboxyl groups of the said crosslinking | crosslinked acrylate. Therefore, the basic gas is confined in the crosslinked acrylate, and this gas does not leak out of the shorts.

In addition, when acidic gases, such as lower fatty acids, generate | occur | produce, pH adjustment by neutralization is performed between the element N of a hydrazine bridge | crosslinking. For this reason, the said acidic gas is confined in the said crosslinked acrylate, and this gas does not leak out of the shorts.

Moreover, in this invention, pH of the said crosslinkable acrylate fiber becomes like this. Preferably it is adjusted in the range of 4.0-7.0, and is weakly acidic. On the other hand, human skin is slightly acidic. When a basic gas or an acidic gas is generated, since the pH adjustment by neutralization is performed between these gases and the crosslinking acrylate, the crosslinking acrylate remains weakly acidic, and the crosslinking acrylate is in direct contact with the skin. Even if it does not damage the health of the skin.                     

For example, the elastic cloth is woven so that a loop is formed on the skin side by elastic fibers or elastic fibers and non-elastic fibers, and obliquely extending fibers connecting the loops appear on the outside, and the deodorizing function is provided. The fiber to be exerted is incorporated in the loop, and this can be realized by tricot half knitting.

1 is a perspective view showing the sanitary shorts of the embodiment of the present invention, Figure 2 is a development view showing the inner side of the shorts, Figure 3 is an outer surface side of an example of the floating structure of the elastic cloth forming the sanitary shorts. It is an explanatory explanatory drawing shown in

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. As for this menstrual shorts, the front length 11, the back length 12, and the crotch part 13 are formed with the elastic fabric 20. As shown in FIG. The stretchable fabric 20 is joined to the side edge portion 11a of the front length 11 and the side edge portion 12a of the rear length 12, and the side edge portion 11b and the rear length 12 of the front length 11 are joined. The side edge part 12b of () is joined, and it continues to a waist circumference. Moreover, the trunk | drum circumference 15 is opened in the upper part, and leg openings 16 and 16 are formed in the both sides of the crotch part 13, respectively.

Inside the crotch portion 13, a stretchable and breathable waterproof cloth (or water repellent cloth: 18) is layered, and the edge thereof is sealed in the stretchable fabric 20. The sanitary napkin 25 shown in FIG. 1 is attached to the inside of the waterproof cloth 18 in the crotch portion 13.

The stretchable fabric 20 is formed of a material having good feel and breathability. 3 is an enlarged view of the stretchable fabric 20 viewed from the outside. The stretchable fabric 20 is formed of a polyurethane fiber thread 31 formed of a polyurethane fiber which is an elastic elastic fiber, and a nylon fiber thread 32 formed of nylon fiber, which is a soft non-stretch fiber, and is formed of a tricot half-woven fabric. It is.

In this woven fabric, the polyurethane fiber thread 31 and the nylon fiber thread 32 form a loop 33 together inside the paper of FIG. When OO extending in the up-down direction in Fig. 3 is used as the reference line, the polyurethane fiber thread 31 is obliquely elongated in the left corner upward direction and the left corner downward direction from the lower base end of the loop 33 positioned at the reference line OO. It is extended. This polyurethane fiber thread 31 is shown at the very front of the ground in FIG. Further, the nylon fiber thread 32 extends obliquely shortly in the right corner upward direction and the right corner downward direction from the lower base end of the loop 33 positioned at the reference line O-O. The nylon fiber thread 32 passes through the inside of the ground of the polyurethane fiber thread 31. The polyurethane fiber thread 31 extends to the left than the baseline OO to form a loop 33 with another nylon fiber thread 32, and the nylon fiber thread 32 extends to the right from the baseline OO and is different. The polyurethane fiber thread 31 and the loop 33 are formed. Therefore, all the loops 33 are located inside the ground.

This cloth can be elongated by the convergence of the loop 33 while the polyurethane fiber thread 31 is elongated. When the tensile force is removed, the cloth can be stretched by the elastic restoring force of the polyurethane fiber thread 31. Restore to state

In this stretchable fabric 20, the amount of stretch in the left and right directions in FIG. 3 is larger than the amount of stretch in the vertical direction in FIG. The stretchable fabric 20 shown in FIG. 3 is sewn in such a manner that the left and right directions are directed in the longitudinal direction (Y direction) of the menstrual shorts shown in FIG. 2 and the loop 33 appears on the skin side. .

And the fiber thread 35 which exhibits a deodorizing function is incorporated in the loop 33 shown in the inside of the paper surface (skin side of shorts) of the said elastic cloth 20 shown in FIG. Therefore, the fiber chamber 35 which exhibits the deodorizing function appears only on the skin side of the menstrual shorts, and has a structure which hardly appears on the outside. The weaving structure of the cloth is not limited to the tricot half weave shown in FIG. 3 but may be another weave structure. And depending on the floating structure, the fiber chamber 35 which exhibits the said deodorizing function may appear in the outer side. In the present invention, however, it is preferable that the fiber yarn 35 appears more than the outside on the skin side of the cloth.

In addition, although the structure which the polyurethane fiber thread 31 and the nylon fiber thread 32 were woven in FIG. 3, for example, the elastic cloth 20 is a yarn formed of a composite fiber coated with nylon on the surface of the polyurethane fiber. The fiber thread 35 which forms the deodorant function may be incorporated in the skin side of this cloth 20.

The fiber chamber 35 exhibiting the deodorizing function is a yarn in which short fibers of a crosslinking acrylate and acryl short fibers are mixed, and is 150 to 250 dtex.

The crosslinking acrylate mainly comprises a copolymer of acrylonitrile (CH ₂ = CH-CN) and methyl acrylate as a monomer. As another example of the said monomer, sulfonic acid containing monomers, such as vinyl halide, vinylidene halide, and p-styrene sulfonic acid, its salt, carboxylic acid containing monomers, such as itaconic acid, its salt, acrylamide, styrene, vinyl acetate, etc. Can be mentioned.

In the crosslinking acrylate 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 hydrazine (NH ₂ -NH _2), there can be mentioned a hydrolysis hydrazine, hydrazine sulfate and the like.

In addition, by the hydrolysis treatment, part of the remaining nitrile group is converted into a carboxyl group (-COOH), and the nitrile group in the remainder is converted into an amide group (-CONH ₂ ). This conversion process can be performed by including base aqueous solutions, such as alkali metal hydroxide and ammonia, strong acid, etc. Moreover, PH of the crosslinking | crosslinked acrylate of this invention is adjusted to 4.0-7.0, and becomes weakly acidic.

Formula (1) has a main chain formed by the polymerization of acrylonitrile and another monomer, and these main chains are crosslinked by bridging (A). Bridge | crosslinking (A) is the part to which the nitrile group was crosslinked by the hydrazine process.                     

When the discharge liquid from menstruation during menstruation or the like, such as sweat from the body, is exposed to air, acidic gases such as lower fatty acids and basic gases such as ammonia gas are generated by oxidation.

In the present invention, when a gas having such an unpleasant irritating odor is generated, it is appropriately suppressed that the gas leaks to the outside of the shorts by the deodorizing action by pH adjustment of the crosslinked acrylate.

That is, basic gas, such as ammonia gas, is adjusted pH by neutralization between the carboxyl groups shown in General formula (1). As described above, the crosslinking acrylate is adjusted to a weak acidity of 4.0 to 7.0, but the crosslinking acrylate is properly maintained in a weak acidity by pH adjustment.

Furthermore, in the present invention, the basic gas is confined in the cross-linked acrylate by a neutralization reaction with a carboxyl group, and the leakage of the gas to the outside of the shorts can be appropriately suppressed, and the deodorizing effect can be enhanced.

In addition, pH adjustment by neutralization is performed for acidic gases, such as a lower fatty acid, with element N of bridge | crosslinking (A). By this pH adjustment, the crosslinking acrylate is kept weakly acidic.

Furthermore, by the neutralization reaction between the acidic gas and N of the hydrazine crosslinking, the gas can be appropriately suppressed from being trapped in the crosslinking acrylate and leaking out of the shorts, and the deodorizing effect can be enhanced.

As described above, in the present invention, when the basic gas or the acidic gas is generated, pH adjustment by the neutralization reaction is performed by the crosslinking acrylate, and the acidic gas or the acidic gas is encapsulated in the crosslinking acrylate. It is possible to exhibit an effective deodorizing effect.

The resin of the acrylic fibers forming the fiber chamber 35 is an addition polymer of acrylonitrile.

As described above, in the physiological shorts of the present invention, the deodorizing and deodorizing effect can be exerted by the fiber having the deodorizing function located inside thereof. Moreover, since the fiber exhibiting the deodorizing function is mainly located on the skin side of the shorts, a high deodorizing effect can be expected.

Claims (3)

In the physiological shorts in which the front body, the rear body and the crotch are formed of elastic cloth, and have a torso circumference and a pair of leg openings formed at the upper edges of the front body and the rear body, and the crotch is a mounting part of the sanitary napkin. , The elastic fabric includes elastic fibers and deodorizing fibers, or includes elastic fibers, non-stretch fibers and deodorizing fibers, and is a woven fabric in which each fiber is woven; Loops are formed on the skin side by elastic fibers or elastic fibers and non-stretch fibers, and woven so that the obliquely extending fibers connecting the loops appear on the outside, and the fibers exhibiting the deodorizing function are interwoven into the loops. The physiological shorts, wherein the fibers exhibiting the deodorizing function appear only on the skin side of the physiological shorts or appear more on the skin side than the outside. The physiological use according to claim 1, wherein the fiber exhibiting the deodorizing function is a crosslinking acrylate in which part or all of the fibers are formed by crosslinking and carboxyl groups by hydrazine treatment, and the pH is adjusted within the range of 4.0 to 7.0 Shorts. delete

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