JP2006087959A - Blocking material for sanitary napkin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blocking material for a sanitary napkin, surely preventing leakage to the underwear and further reducing offensive feeling. <P>SOLUTION: This blocking material for a sanitary napkin is formed of small-block-like blocking material disposed on the upper surface of a surface sheet 1a of a napkin body 1 in which a water absorbing material 2 is interposed between a water permeable surface sheet 1a and a water impermeable back sheet 1b. The blocking material 3 functions as a transmission bridge for transferring flowing blood to the napkin body 1, thereby preventing blood from spreading along a body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sanitary napkin block material, and more particularly to a sanitary napkin block material that can reliably prevent leakage to underwear and further reduce discomfort.

  Generally, a sanitary napkin is configured by interposing a water-absorbing material between a water-permeable top sheet and a non-water-permeable back sheet, but in physiological bleeding, the outflowed blood spreads through the buttocks, Underwear may be soiled depending on the amount of bleeding and posture. Therefore, in recent years, in sanitary napkins, in order to deal with the above spread of blood, technology for increasing the absorption capacity of the absorber, technology for expanding the contact area with the body, technology for providing gathers around the body that are easy to follow Alternatively, various techniques for making a pants form have been proposed.

  In addition, as an auxiliary sanitary product, a “physiological auxiliary absorber” that is used by being disposed on the absorption surface of a sanitary napkin has been proposed. Such a sanitary auxiliary absorber has a cross section perpendicular to the longitudinal direction formed into a substantially triangular rod shape, and is attached with a napkin to be positioned between the crotch so that blood flowing out to the back side along the crotch can also be obtained during sleep. It can be absorbed (Patent Document 1).

Japanese Patent Laid-Open No. 10-127692

  By the way, conventional sanitary napkins and auxiliary absorbent bodies as described above are based on the idea of coping with this on the premise of spreading to the buttocks at the time of bleeding, and thus cannot necessarily be a radical solution. In fact, depending on the body movement and the form of the underwear to be worn, there is not only a leak to the underwear, but no discomfort is solved. This invention is made | formed in view of such a situation, The objective is to provide the novel sanitary napkin block material which can prevent the leak to underwear reliably and can further reduce discomfort.

  As a result of examining radical measures based on the idea completely different from the concept of the conventional sanitary napkin that absorbs blood that has spread due to bleeding, the following knowledge was obtained.

  That is, if a block material made of a water-absorbing material and independent from the napkin body is used and the napkin body is mounted with the block material sandwiched between the entrances of the vagina, Since everything is once absorbed directly into the napkin body via the block material, the spread of blood along the crotch and hips is prevented, and as a result, if used, the napkin body of the conventional size is used. However, it can absorb blood sufficiently, and there is no discomfort. In other words, the block material acts as a transmission bridge for the blood that flows out to the napkin body. And since the block material is independent from the napkin main body and the state pinched by the entrance of the vagina is maintained, the function as a blood transmission bridge can be maintained even if the napkin main body moves by the movement of the body.

  The present invention has been made on the basis of the above findings, the gist of which is on the upper surface of the top sheet of the napkin body in which a water absorbing material is interposed between the water-permeable top sheet and the water-impermeable back sheet. A sanitary napkin block material, which is a small-sized sanitary napkin block material, is made of a flexible water-absorbing material and is independent of the napkin body when mounted.

  According to the present invention, the block material independent from the napkin body absorbs all of the blood that flows out once, and then transmits it to the napkin body to be absorbed by the napkin body. As a result, leakage to the underwear can be reliably prevented, and discomfort can be further reduced.

  An embodiment of a sanitary napkin block material according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing one embodiment of a sanitary napkin block material according to the present invention. In the following description of the embodiment, the sanitary napkin is abbreviated as “napkin”. In the present invention, water permeability, non-water permeability and water absorption are concepts for physiological bleeding.

  As shown in FIG. 1, the napkin block material of the present invention comprises a napkin body (1) in which a water absorbing material (2) is interposed between a water-permeable top sheet (1a) and a water-impermeable back sheet (1b). ) Of the top surface sheet (1a) of the block material (3) disposed on the upper surface (outer surface). The block material (3) is made of a flexible water-absorbing material and is provided independently from the napkin body (1).

  The napkin body (1) is the same as a conventional napkin, and basically includes a top sheet (1a), a back sheet (1b), and a water absorbing material (2). The top sheet (1a) is a sheet on the inner surface side that comes into contact with the body, and examples of such a sheet include nonwoven fabrics made of various thermoplastic resins, punched sheets thereof, punched sheets and films. The back sheet (1b) is a sheet on the outer surface side in contact with clothing, and as such a sheet, various conventionally known non-permeable sheets such as a water-repellent nonwoven fabric and a thermoplastic resin are used. An adhesive layer for fixing the napkin body (1) to the underwear is provided on the outer surface of the back sheet (1b), and such an adhesive layer is covered with release paper until use.

  The water-absorbing material (2) may be any material that can substantially absorb and retain moisture, and is composed of hydrophilic natural fibers such as pulp, rayon, and cotton, or synthetic fibers such as polyethylene, polypropylene, polyester, and polyamide. It is composed of paper, pulp sheet, non-woven fabric and the like. The water absorbing material (2) may be either a single layer structure or a multilayer structure, and the water absorbing material (2) carries a deodorant, a deodorant, an antibacterial agent, an fragrance, a hygroscopic agent, and the like. You may let them.

  Said surface sheet (1a) and back sheet (1b) are bonded together in the state which pinched | interposed the water absorbing material (2). The pasting part of the top sheet (1a) and the back sheet (1b) is the peripheral part of each sheet overhanging the outer periphery of the water-absorbing material (2), as in the conventional napkin, A method such as sticking using an adhesive, heat sealing, or ultrasonic welding is employed. In addition, in order to relieve the color of the water absorbing material (2) and improve the appearance between the surface sheet (1a) and the water absorbing material (2), a water-permeable shielding sheet may be interposed.

  As will be described later, the block material (3) is a small block-like part that is put in a state of being sandwiched in the entrance of the vagina, and is preferably formed in a substantially spherical shape as illustrated so as to always fit the entrance of the vagina. However, as long as there is no inconvenience in mounting, it may be formed in a non-spherical shape such as a hemispherical shape, a conical shape, an egg shape. A block material (3) is comprised with the water absorbing material similar to a water absorbing material (2).

  For example, in the case of a substantially spherical shape, the block material (3) can be formed into a ball shape by itself due to fiber entanglement. Moreover, after forming into a sheet form once, you may round and shape | mold into a spherical shape. Furthermore, in order to maintain the shape, the outer surface may be covered with a water-permeable net such as a net. That is, as the block material (3), as long as it is a small lump of the above shape that can be fitted to the body, a single molded article of a water absorbent fiber assembly, a water absorbent material coated with a net, a water absorbent material, What was wrapped with the water absorbing sheet etc. can be employ | adopted.

  The size of the block material (3) is such that a part can be inserted into the entrance of the vagina, and the diameter of the block material (3) in the case of a spherical shape is usually about 15 to 40 mm. In addition, the flexibility (density of the water-absorbing material) is pinched by hand so that when worn, it is crushed between the body and the napkin body (1) to form a flared shape along the crotch. It is soft enough to be easily deformed.

  In addition, the above block material (3) is preferably composed of a water-soluble water-absorbing material, for example, cellulose short fibers such as Japanese paper in consideration of inadvertent dropping to the flush toilet. Alternatively, the block member (3) is freely connected to a substantially central portion of the napkin body (1) by a thin string body such as a thread unless the behavior is restricted by the napkin body (1) attached to the underwear. Also good. In this case, the length of the thin string body is set to a sufficient length so that the block material (3) does not come off from the entrance of the vagina by being dragged to the napkin body (1) side at the time of wearing. The block material (3) may carry a deodorant, a deodorant, an antibacterial agent, a fragrance, a hygroscopic agent, etc., as in the case of the water absorbing material (2).

  When the napkin block material of the present invention is used, first, the block material (3) is applied to the vagina, and then the napkin body (1) is adhered to the undergarment, and the underwear is applied to the body side in the same manner as the conventional napkin. Attach like pressing. In that case, since the block material (3) is a small lump shape, it can be made to fit in the state pinched | interposed into the entrance of the vagina by pressing down with the napkin main body (1).

  In the present invention, the block material (3) once absorbs all of the outflowing blood, and guides all of the absorbed blood to the napkin body (1), and finally to the napkin body (1). Absorb. That is, the block material (3) acts as a transmission bridge for the blood that flows out to the napkin body (1). Moreover, since the block material (3) is independent from the napkin body (1), even if the napkin body (1) moves due to the movement of the body due to the movement of the underwear, it does not come off from the entrance of the vagina. The function as a transmission bridge can be maintained, and the spread of blood along the crotch and buttocks can be prevented.

  Therefore, according to the present invention, since all of the blood that has flowed out is absorbed by the napkin body (1) through the block material (3), leakage into the undergarment (clothing stains) can be reliably prevented and uncomfortable. Can be further reduced. Moreover, according to the napkin of this invention, since the spread of the blood along a body can be prevented, the surface area of a napkin main body (1) can be made small.

It is a perspective view which shows one form of the sanitary napkin block material which concerns on this invention.

Explanation of symbols

1: Napkin body 1a: Top sheet 1b: Back sheet 2: Water absorbing material 3: Block material

Claims (1)

  A sanitary napkin block material in the form of a lump arranged on the upper surface of a top sheet of a napkin body in which a water absorbing material is interposed between a water permeable top sheet and a non-water permeable back sheet, and is a flexible water absorbing material And a sanitary napkin block material that is independent from the napkin body when mounted.

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