JPS62144657A - Sanitary tampon - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a sanitary tampon that is used by being inserted into the vagina.

(Prior Art) Conventionally, sanitary tampons have been known whose surfaces are coated with hydrophilic or hydrophobic fibrous nonwoven fabric in order to prevent the fibers from falling off and remaining in the vagina. There is. On the other hand, it is known that the amount of fiber at the rear end is reduced in order to make it easier to draw out the inside of the vagina.

(Problems to be Solved by the Invention) However, the tampon whose surface is covered with a non-woven fabric has a tampon that absorbs and retains menstrual blood.
Since the web is cut to the same shape and size and press-molded, the end surface is not covered with a nonwoven fabric, which is insufficient to prevent the fibers from falling off. On the other hand, the tampon in which the amount of fibers in the rear end portion is reduced requires complicated steps such as stacking the constituent materials in a stepped manner to reduce the amount of fibers in this way.

The present invention relates to a tampon in which at least the surface is covered with a hydrophobic fiber nonwoven fabric and the amount of fibers in the rear end is reduced. Our goal is to provide a tampon that can solve this problem.

(Means for Solving the Problems/Embodiments) The gist of the means of the present invention for solving the above problems is that the constituent material is a hydrophilic fiber web cut into large squares, and A fibrous nonwoven fabric cut into a large rectangular shape slightly extending from opposing positions on every other side of the large rectangular shape and laminated on both sides of the fibrous web, wherein at least one of the nonwoven fabrics on both sides is made of hydrophobic fiber, and the nonwoven fabric on both sides The part where the nonwoven fabric extends and meets is closed, and the constituent material is squeezed into a flower bud shape with the hydrophobic fiber nonwoven fabric side facing the surface and press-molded into a columnar body. In the sanitary tampon, a drawer string is connected to the rear end of the columnar body where the base point is located.

Further, the present invention will be explained based on illustrated embodiments.
It is as follows.

As shown in FIGS. 1 and 2, the constituent material 1 of the tampon is a web 2 made of hydrophilic fibers such as cotton rayon fibers alone or in a mixture, and polyester fibers.
A nonwoven fabric 3 made of hydrophobic fibers such as polypropylene is used. The fiber ~ nib 2 is cut into large squares, and the nonwoven fabric 3
The fibrous web 2 is cut into a large rectangular shape with a size that covers both sides of the fibrous web 2 and slightly extends from opposing positions on every other side of the fibrous web 2 . Then, the fibrous web 2 is sandwiched between two folded nonwoven fabrics 3, and the nonwoven fabrics 3 are joined by heat welding, leaving an outer edge at a portion 4 where the nonwoven fabrics 3 extend and meet (excluding the folded portion of the nonwoven fabric 3). The reference numeral 5 indicates the joint portion. As shown in FIG. 3, the large rectangular component material 1 is thus obtained by forming the material into a rectangle and then cutting off the corners mlt. 3
o Before resection.

In this case, the nonwoven fabric 3 may be cut into two rectangular pieces large enough to cover both sides of the fibrous web 2. In this case, the side edges of the fibrous web 2 extend to cover all of the mating surfaces. It goes without saying that the parts are joined. In this case, as will be described later, the nonwoven fabric 3 on the surface of the component material 1, which will be located inside the component material 1 when it is press-molded into a columnar body, may be made of hydrophilic fibers, as the case may be. Sometimes things are used.

The nonwoven fabric 3 preferably has a fineness of 3 d or less, a date of 7 to 35 g/M, and a density of 0.01 to 0.3 g/d in view of the texture of the surface of the tampon, menstrual blood permeability, and the like.

The thinner the fibers of the nonwoven fabric 3, the smoother the texture, so it is preferable that the fibers be as thin as possible, but with the current spinning technology, it is difficult to obtain fibers of 0.7 d or less. When using 7d or less, for example, it is composed of two thermoplastic polymer components that have poor adhesion to each other, and one component is separated into a plurality of layers that are more continuous in the fiber direction than the other component. Stable fibers, which are splittable composite fibers of 1 to 5 d, may be split using a card machine or high-speed water jet treatment. Such fibers are disclosed, for example, in JP-A-57-56562.

Furthermore, as the nonwoven fabric 3, a fabric that is given a sheet-like form by intertwining fibers and has a large number of independent openings 6 formed by distributing the fibers may also be used. Yes (see Figure 9). Such a nonwoven fabric can be produced, for example, by a known fiber entangling method using high-speed fluid jetting, that is, by jetting a fibrous web with a high-speed water jet on a support having a large number of independent protrusions, and simultaneously entangling the fibers. The method of distributing the fibers at the protrusions allows the fibers to flow. The shortest diameter of the opening 6 is 0.5
~5III11, the porosity is preferably 10 to 50% of the nonwoven fabric 3.

Such a constituent material 1 has its center part 7 as a base point,
As shown in Figure 4, squeeze it into a flower bud shape or an umbrella shape,
As shown in FIG. 5, it is compression molded into a cylindrical body 8. As shown in FIG. 6, the cylindrical body 8 is provided with a through hole 10 at its rear end, that is, in the vicinity of the central portion 7, through which the drawstring 9 is inserted. As shown in FIGS. 7 and 8, the string 9 is attached to the back of the cylindrical body 8 by inserting the loop portion folded in half into the through hole 10 and passing the other portion through the loop portion. tied at the end.

(Operations and Effects of the Invention) According to the tampon of the present invention configured as described above, the fibrous web is simply covered with a nonwoven fabric that is an exterior material except for a part of the front end. The fibers do not fall off and remain in the vagina, making it extremely hygienic. In addition, tampons are made of square-shaped constituent material that is compressed into a flower bud shape starting from the center, so that the amount of constituent material increases from the rear end to the tip. When it is pulled out from the vagina in a state in which it absorbs blood and expands into a flower bud shape, the resistance is smaller and easier to pull out than when the amount of constituent material is uniform throughout. Moreover, in order to construct such a tampon, there is no need for steps such as stacking the constituent materials in a stepped manner as in the past, so the manufacture is extremely simple and it is extremely useful in practical use.

[Brief explanation of drawings]

The drawings show an embodiment of the tampon of the present invention, in which Fig. 1 is a developed plan view of the constituent materials, Fig. 2 is a sectional view taken along the line x-X of Fig. 1, and Fig. 3 shows the rectangular configuration of Fig. 1. A developed plan view before forming into a material, FIG. 4 is a perspective view showing the process of forming a tampon,
Figures 5 and 6 are one side view showing the tampon in a molded state, Figures 7 and 8 are one side view and another side view showing the tampon in a molded state, and Figure 9 is a part of the constituent material. 1 is a partial perspective view of a discrete nonwoven fabric; FIG. 1... Constituent material 2... Fiber web 3...
・Nonwoven fabric 6...open hole 7...center
8... Column body No. l Prisoner, Fig. 2, Fig. 3, Fig. 4, Shoulder

Claims (4)

[Claims] (1) A hydrophilic fiber web whose constituent materials are cut into octagons, and fibers which are cut into octagons and are laminated on both sides of the fiber web, slightly extending from opposite positions on every other side of the octagon. A nonwoven fabric, wherein at least one of the nonwoven fabrics on both sides is made of hydrophobic fibers, the portions where the nonwoven fabrics on both sides extend and meet are closed, and the constituent material is The physiological material is squeezed into a flower bud shape and pressed into a columnar body so that the fiber nonwoven fabric side is located on the surface, and a drawer string is connected to the rear end of the columnar body where the base point is located. tampons. (2) The tampon according to claim 1, wherein the nonwoven fabric has a basis weight of 7 to 35 g/m^2 and a density of 0.01 to 0.3 g/cm^3. (3) The nonwoven fabric located at least on the surface of the columnar body is given a sheet-like form by intertwining fibers, and has openings formed by distributing the fibers, and the openings are The tampon according to claim 1, having a shortest diameter of 0.5 to 5 mm and a porosity of 10 to 50% of the nonwoven fabric. (4) The tampon according to claim 1, wherein the nonwoven fabric located inside the columnar body is made of hydrophilic fiber.