JPH0725940Y2 - Sanitary tampons - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a sanitary tampon which closes a vaginal cavity and absorbs and holds menstrual blood.

[0002]

2. Description of the Related Art Conventionally, in this type of tampon, a drawer string is attached to the center of a sheet-like fiber piece formed in a square shape to extend, and the sheet-like fiber is centered around the draw-out string. It is known that a piece is squeezed in a direction opposite to the extending direction of the cord and pressed into a rod-shaped body having a substantially uniform diameter over the entire length (see, for example, JP-A-49-83292 and JP-B-3-982). ). This tampon is so formed that when fully swelled, the front end expands in a parachute manner from the rear end where the string is located as a base point, and can sufficiently receive menstrual blood. This is to make it possible. However, in such a tampon, since the tip portion has a higher fiber density and is harder than the trailing end portion, the absorption rate is relatively low, and even if absorbed, the tip portion swells and expands sufficiently. Do not open.

On the other hand, in order to eliminate these drawbacks, two sheet-like fiber pieces formed in a rectangular shape are crossed and crossed to each other, and a drawstring is attached to the crossed-out portion to extend and form like the tampon. Known sanitary tampons are also known. However, this is more laborious to manufacture than the tampon.

An object of the present invention is to construct the tampon so as to easily absorb and swell menstrual blood by an extremely simple means while having the former tampon form.

[0005]

In order to solve the above-mentioned problems, the present invention has a drawer string attached to the center of a sheet-like fiber piece formed in a substantially square shape and extended, and the above-mentioned string is used as a center. It is premised on a sanitary tampon in which a sheet-shaped fiber piece is squeezed in a direction opposite to the extending direction of the cord and compression-molded into a rod-shaped body.

In the present invention, on the premise, a plurality of slits extending radially around the cord are provided in the outer peripheral area of the sheet-like fiber piece.

In a preferred embodiment, an outer cloth piece having a higher tear strength than that of the sheet-like fiber piece and maintaining the sheet form by entanglement or joining of fibers is at least the outer surface of the rod-shaped body. It is pressed and formed into the rod-shaped body by superimposing it on the surface.

[0008]

In the tampon according to the present invention having the above-mentioned structure, menstrual blood is absorbed and swelled by the rod-shaped body from the surface of the rod-shaped body, particularly from each slit. The presence of each of the slits makes it easier for the rod-shaped body to spread from its tip.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the tampon according to the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a tampon comprises a square sheet-like fiber piece 1 cut from a simple web of hydrophilic fibers such as cotton and rayon. A plurality of slits 2 (see FIG. 6) extending from the outer peripheral edge of the sheet-shaped fiber piece 1 to the vicinity of the central region thereof are radially provided with the central portion as a base point. A pull-out string 3 is attached to the central portion of the sheet-shaped fiber piece 1 and extends outward (the lower surface of the fiber piece in the figure).

As shown in FIGS. 2 and 3, the tampon is
The sheet-shaped fiber piece 1 is squeezed into a rod-shaped body 4 by squeezing the sheet-shaped fiber piece 1 in the direction opposite to the extending direction of the draw-string 3 with the draw-string 3 as the center. This compression molding can be easily performed by a known tampon making machine.

The slit 2 in the sheet-like fiber piece 1 shown in FIG. 4 is provided leaving the outer peripheral edge of the fiber piece. Further, the slit 2 may be provided differently from that shown in FIG. 1, as can be understood from the place shown in FIG. Although the slit 2 in the illustrated example is closed, it may be completely opened in the shape of a slot or a slot, and its opening width is gradually expanded from its outer end to its inner end or from its inner end to its outer end. It may be provided in.

As shown in FIG. 7, on both sides of the sheet-shaped fiber piece 1, tearing strength is higher than that of the sheet-shaped fiber piece 1, and fibers are entangled or joined to maintain the sheet form. Are stacked, slits 2 are provided in this laminated body,
The rod-shaped body 4 may be pressed. Further, as shown in FIG. 8, the slits 2 may not be provided in the inner and outer cloth pieces 5, 6. For the inner and outer cloth pieces 5, 6, not only a non-woven fabric in which hydrophilic fibers are joined with a binder or entangled with a high-speed water stream, but also a melt-bonded non-woven fabric, a spun-bonded non-woven fabric, etc. can be used. The nonwoven fabric made of fibers preferably has good liquid permeability, and in order to do so, in addition to having relatively low fiber density, a large number of openings are formed in the cloth pieces 5, 6 or a hydrophilic agent is used. Can be used. As described above, when the cloth pieces 5, 6 are used, particularly the cloth piece 6 to be positioned on the outer surface of the rod-shaped body 4, the fibers are dropped from the sheet-like fiber piece 1 and remain in the vaginal cavity, which is unsanitary. It can be prevented from becoming.

It is preferable to use a monofilament for the pull-out string 3 so that the draw-down string 3 does not cause a capillary phenomenon so that menstrual blood does not leak out through the string.

[0015]

According to the tampon of the present invention, since menstrual blood is absorbed from the slit into the rod-shaped body and swells and easily spreads from the tip end portion thereof, the menstrual blood is further absorbed to the vaginal cavity wall. The vaginal cavity can be sufficiently closed by closely contacting it to prevent menstrual blood from leaking.

[Brief description of drawings]

FIG. 1 is a plan view showing a sheet-shaped fiber piece which is a constituent material of a sanitary tampon as an embodiment according to the present invention.

FIG. 2 is a perspective view showing a process of squeezing the sheet-shaped fiber piece into a parachute shape and compression-molding it into a rod-shaped body.

FIG. 3 is a side view showing a tampon squeezed and molded into the rod-shaped body.

FIG. 4 is a plan view showing another embodiment of the sheet-shaped fiber piece.

FIG. 5 is a plan view showing still another embodiment of the sheet-shaped fiber piece.

FIG. 6 is a sectional view taken along line XX of FIG.

FIG. 7 is a view of the sheet-like fiber piece whose both sides are covered with a piece of cloth.
Sectional view corresponding to.

FIG. 8 is a cross-sectional view corresponding to FIG. 6, showing another embodiment of the sheet-shaped fiber piece whose both sides are covered with a cloth piece.

[Explanation of symbols]

 1 Sheet-like fiber piece 2 Slit 3 Drawstring 6 Exterior cloth piece

Claims (2)

[Scope of utility model registration request] 1. A drawstring attached to the center of a sheet-like fiber piece formed in a substantially square shape to extend, and the sheet-like fiber piece is shrunk in the direction opposite to the extending direction of the above-mentioned rope as a center. In the sanitary tampon squeezed and formed into a rod-shaped body, a plurality of slits extending radially around the cord are provided in an outer peripheral area of the sheet-like fiber piece. 2. An outer cloth piece having a tear strength higher than that of the sheet-like fiber piece and entangled or joined with the fibers to maintain a sheet form is overlaid on at least the outer surface of the rod-shaped body. The sanitary tampon according to claim 1, which is press-molded into the rod-shaped body.