JPH0340268Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tampon for menstrual treatment, and more particularly to a tampon in which the fiber density at the tip is reduced to improve the initial absorption rate.

Generally, commercially available tampons are often shaped by winding water-absorbing rectangular paper cotton made of cotton, rayon, nonwoven fabric, etc. into a roll and compressing the outer surface. From the perspective of simply absorbing menstrual blood, its shape is effective in its own way, and it is gaining acceptance among consumers due to its convenience of being smaller than a napkin. However, when looking at the performance of tampons,
Since the absorbent part is densely packed in the center, it cannot be said that the absorbent part is utilized effectively.

In addition, tampons are made by making a square piece of absorbent cotton protrude so that the center part becomes the rear end, forming it into a parachute shape, and then compressing it. Generally, when an absorbent material is compressed and then absorbed, it has the property of returning to its pre-compression shape, so when a tampon compressed in a parachute shape absorbs blood, it tries to return to its parachute shape. Therefore, when absorbing menstrual blood, both the outside and inside of the parachute act as effective areas, and although this is a desirable shape,
There is a disadvantage that too much of the absorbent body gathers at the edge of the parachute, and in the vagina it does not substantially function as the opening of the parachute due to the resistance of the vaginal wall.

In an attempt to improve the above-mentioned drawbacks, as shown in Fig. 1, two rectangular raw fabrics 1 and 1' were stacked in a cross shape (a) and then protruded so that the center part became the rear end (b). There are also C tampons that are compression molded. This shape certainly eliminates the above-mentioned drawbacks and provides a tampon that is satisfactory in use. However, since the fiber density at the tip of such a tampon is almost the same as that of the body, it has a drawback that the initial absorption rate is slow for liquids having a viscosity similar to blood. That is, in FIG. 1c, m is a high-density portion and n is a low-density portion.

The present invention provides a tampon that incorporates the above advantages and eliminates the disadvantages.

That is, the tampon of the present invention is a tampon made by stacking at least two sheets of raw fabric in a cross shape, protruding the center part of the cross shape, and compression molding it into a rod shape. The opposite side has two long sides and two short sides, and the two long sides are substantially parallel to each other, but the short side is provided with a convex part and/or a concave part to reduce the density of the tip part. It is characterized by the fact that it is made in a similar manner.

Hereinafter, details of the present invention will be explained using the drawings.

FIG. 2 shows an example of the manufacturing process of the tampon of the present invention. The original fabric 2 of the present invention has two long sides 3 and two short sides 4 as shown in a. The long sides 3 are substantially parallel to each other, but the short sides 4 are required to have protrusions and/or depressions to reduce the fiber density at the tip of the tampon. Short side 4
The shape is preferably a shape that reduces the density of the tip of the tampon, such as a chevron, round, jagged, or wavy shape.

The raw fabric used in the present invention may be made of any material as long as it absorbs water well, but it is generally made of water-absorbing paper, nonwoven fabric, etc. Also, several layers of absorbent materials made of different materials may be bundled. When using several layers of absorbent material, further woven pulp, etc.
Highly absorbent polymers commonly called hydrogels, represented by sodium polyacrylate and CMC,
Fibrous rayon, cotton, etc. can also be used.

When manufacturing the tampon of the present invention, as shown in Figure 2, two sheets of raw fabric are laminated in a cross shape (a), the center part of the cross shape is protruded as the rear end (b), and compression molded into a rod shape. c.

The thus obtained tampon of the present invention has a low fiber density in the tip portion 1 and rear portion n, and has a high fiber density only in the body portion m. Therefore, even when the tip is shaken into a liquid having a viscosity similar to that of blood, the low-density portion at the tip is likely to spread, and an excellent effect on the initial absorption rate can be obtained.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the conventional tampon manufacturing process;
FIG. 2 is a diagram showing the manufacturing process of the tampon of the present invention. 1... Conventional tampon material, 2... Tampon material of the present invention.

Claims (1)

[Scope of utility model registration request] In a tampon formed by stacking at least two raw fabrics in a cross shape, protruding so that the center part of the cross shape becomes the rear end, and compression molding into a rod shape, the raw fabric of the tampon has two long sides and two The two long sides are substantially parallel to each other, and the short sides are provided with a convex portion and/or a concave portion so that the density of the tip portion is reduced. tampon.