JPH027662B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an absorbent body for hygiene, and more particularly to an absorbent body useful for sanitary purposes, urination, etc.

An analysis of the absorbent material of conventional diapers reveals that most of the disposable diapers currently on the market are of the band-like type that covers the area from the belly button through the crotch to the area directly behind the belly button. , attaching adhesive tape or attaching elastic yarn to both sides to make the leg area close when worn and to prevent urine from leaking from the groin area.
Although various new diapers have been released one after another, the area to which the diaper is applied remains the same as described above. Additionally, this type of diaper absorbs or retains both urine and feces.

The following two problems can be raised when this type of diaper is actually used.

When the wearer urinates, the urine is absorbed into the diaper, but the urine seeps into the diaper from the crotch to the groin area, causing (1) ammonia dermatitis in infants and (2) elderly people in bed. The patient is susceptible to pressure ulcers (bedsores).

Since the covering area is large from the front through the crotch to the back, and a large amount of material is used, the cost is high, and of course the price is also high, which is a heavy financial burden when used on a daily basis.

Unless there is diarrhea, the number of defecations and urination in a day is usually around 5 to 7 times per defecation, which is an overwhelmingly high number of times, and it is thought that it is good to have a diaper specifically for urinating. The present invention is based on this.

When considering a diaper exclusively for urination, it must be an absorbent material that can only be applied to the private parts and its surroundings.It is necessary to provide a mechanism on the surface of the absorbent material to prevent urine from leaking out of the diaper.

It requires a structure that does not wet areas other than the local area and absorption capacity.

d Shape retention and fit are required when used in conjunction with a holder or diaper cover.

The above four points are the key points.

In order to satisfy these four points, a strip of paper or pulp is placed in a water-impermeable bag, the surface of the bag is opened,
We made and tested a prototype diaper in which the opening is applied to the private parts, but if the opening was only provided in the bag, urine would not leak out of the bag during use, but instead would be absorbed by the absorbent material inside the bag. It turned out to be extremely difficult.

Therefore, an attempt was made to provide a recess in the absorbent body at the opening of the bag, but it was difficult to provide the recess, and
It has been found that even if a bag is provided, it is difficult to maintain the depth of the recess required to receive urine and absorb it into the absorbent body of the bag, and to maintain the shape of the recess during use.

Therefore, the inventor conducted research and created an absorbent material by spirally winding a mat consisting of two layers: a highly absorbent material and a material that is absorbent and has a certain strength while retaining flexibility. Prototype the formed one,
By bending this into a roughly horseshoe shape, it has become possible to easily create a space to receive urine at the same position as the opening of the non-water permeable bag.

By changing the diameter of the spiral, it became easy to obtain the necessary depth for the space.

By making a flexible material into a spiral rod shape,
It is flexible and elastic, retains its shape well during use, and does not slip easily when used with a supporter or diaper cover.

However, at the same time, it faced new problems, such as the bending part becoming stiff and causing a feeling of foreign body when applied, and the cylindrical shape lacking in fit to the body. did.

As a result of further intensive research, we formed a band-like thin part on a flexible and water-absorbing flat element body, and by winding this, the internal space corresponding to the thin part became approximately spiral in diameter. Alternatively, by configuring it so that it has a roughly spiral shape along the center line direction, the density of the bent part does not become excessive, it maintains flexibility, eliminates the anti-fitting property of a cylindrical shape, and reduces the delicate surroundings of the local area. We have completed the absorbent body of the present invention, which is a disposable absorbent body exclusively for urination that fits well to the body shape, and also a disposable absorbent body for sanitary use, which solves the above-mentioned problems at once.

The present invention will be explained in detail below.

Reference numeral 1 denotes an absorber, and this absorber 1 has a flat plate-like element body 10 having a thin wall portion 11 of 30 to 70% in unit volume ratio, that is, in terms of weight ratio, in the longitudinal direction. It is wound spirally and formed into a substantially round rod shape having an internal space 12 corresponding to the thin wall portion 11 .

The base body 10 is made of one member or two members, a fabric 10a and a polymerized fabric 10b shown in the drawings, and in the case of the former, it is made of paper or nonwoven fabric that has a certain degree of strength, flexibility, and water absorption for shape retention. or a mixture of this with soft and highly absorbent pulverized pulp and hydrophilic fibers such as rayon and acetate, or a material made by adding highly absorbent polymers and/or highly odor-absorbing activated carbon to these. In the latter case, the fabric 10a is made of paper or nonwoven fabric that has a certain degree of strength for shape retention, flexibility, and water absorption, and the polymer fabric 10b is made of pulverized pulp that is flexible and highly water absorbent. and hydrophilic fibers such as rayon, acetate, paper, or a combination thereof, or a material in which a highly water-absorbing polymer and/or highly odor-absorbing activated carbon is added, and the polymer fabric 10b has a thin wall portion 11 on the fabric 10a. They are integrally polymerized so that one or two or more are formed. Further, it is desirable to extend the adhesive portion 10c along the upper edge of the fabric 10a, thereby making it possible to shield and isolate the internal space 12 formed corresponding to the thin-walled portion 11 from the outside, and to substantially eliminate the absorbent body. It can be arranged into a round bar shape.

The thin wall portion 11 has a width of approximately 0.5 to 1.5 cm and is shaped like a vertical band, a diagonal band, or a combination thereof.
The internal space 12 formed corresponding to 1 has a substantially spiral cross-section, and has a water retention function without hindering the physical expansion of the polymerized fabric 10b due to water absorption, and has a thin wall that accompanies the curvature and bending of the absorbent body itself. It functions as a space in which the curved part 11 can move and a space in which the overlapping part 12 can move.

Next, to explain each specific example, FIG. 1 shows an embodiment in which the thin wall portion 11 is formed into a vertical band shape and the internal space 12 is formed into a spiral cross section in the radial direction. For example, bent V
It can be shaped into the shape shown in FIG. 6, and is suitable for menstrual use or infant diapers (urination).

FIG. 2 shows an embodiment in which the thin-walled portion 11 is formed into a diagonal band shape and the internal space 12 is formed into a spiral cross-section. It can be shaped into the shape shown in FIG. 7, for example, in which the entire portion is curved from the portion 11, and is suitable for menstrual use and infant diapers (for urinating).

In FIG. 3, the thin wall portion 11 is formed into a combination of a vertical band shape and a diagonal band shape, and the internal space 12 has a spiral section with a substantially spiral section and a radial section on both sides of this section with a substantially spiral section. This is an embodiment, and in this embodiment, the absorber 1 is rolled into a substantially circular shape from the thin wall portion 11 extending in the longitudinal direction, and is bent at the thin wall portions 11, 11 on both sides thereof. It is suitable for urination, especially for men.

FIG. 4 shows an embodiment in which the thin wall portions 11 are formed in the shape of three parallel vertical strips, and each internal space 12 is formed into a substantially spiral cross section in the radial direction. For example, it can be shaped into the state shown in FIG. 9, and is suitable for both men and women for urination.

FIG. 5 shows an embodiment in which the thin-walled portions 11 are formed into four parallel longitudinal strips, and each internal space 12 has a spiral cross-section in the radial direction. For example, it can be shaped into the posture shown in FIG. 10, and is suitable for urination for women and men.

In addition, regarding the specific constituent members, size, structure of the thin wall portion, etc. of each absorbent body 1 shown in FIGS. 1 to 10, preferred material composition, size structure, and thin wall portion may be determined depending on each application. Needless to say, the configuration is adopted.

Incidentally, as an example, absorbers for infants, menstrual use, and adult men having the configuration shown in FIG. 5 will be specifically explained.

Infant diaper (not shown) Product size (standard size) It is 35cm long and 3cm in diameter.

Structure A 2cm wide paper fabric with a certain degree of strength, flexibility, and water absorption properties for shape retention, and a 2cm wide paper fabric made from crushed pulp that has flexibility and high water absorption properties and a super water absorption polymer added to it. The strip-shaped polymerized fabric is polymerized in parallel with 1 cm width between each thin wall section, and then it is wound spirally in the direction of the thin wall section and stopped at the glue margin to form the material. The sections are independent at 11 locations along the longitudinal direction of the absorber, each having a spiral cross-section, allowing the absorber to be finely bent from the 11 locations.

How to use: The absorbent body is used by being applied between the diaper cover or the diaper having an absorbent part, from the abdomen through the private parts to the waist side.

Sanitary absorbent (not shown) Product size (standard size) It is 16cm long and 3cm in diameter.

Structure: A paper fabric that has a certain degree of strength, flexibility, and water absorption properties for shape retention, and a super absorbent polymer added to pulverized pulp that is flexible and highly water absorbent, with both ends The width of the part is 3cm, and the width of the middle part is 2cm.
The strip-shaped polymerized fabrics each having a width of 1 cm are polymerized in parallel with each thin-walled portion spaced apart, and then they are wound spirally in the direction of the thin-walled portions and stopped at the glue margin to form the fabric. Each thin section is located along the longitudinal direction of the absorbent body.
Each location has an independent spiral shape in its radial cross section, allowing the absorber to be finely bent from four locations. or,
It is desirable that the lower longitudinal half of the absorbent body be treated to be water-impermeable.

How to use: The absorbent material is applied to the private area between a napkin or underwear.

Urinary bag for adult men (Fig. 11) Product size (standard size) Wide side upper end width 10 cm, narrow side lower end width 7 cm, length 18
cm, thickness 3.6cm.

absorber size It is 45cm long and 3.5cm in diameter.

Structure: The absorbent body 1 is folded as shown in the figure and placed in a water-impermeable film bag 2, so that the male private parts can be inserted from the opening of the bag 2 into the space surrounded by the absorbent body.

The absorbent body 1 is made by adding a super absorbent polymer to the pulverized pulp that is flexible and has high water absorbency, on a paper fabric surface that has a certain degree of strength, flexibility, and water absorption for shape retention. However, both ends are 1.5cm
Each band-shaped polymerized fabric with a middle width of 2 cm was polymerized in parallel with a 1 cm wide interval between each thin wall part, and then,
It is formed by winding it in a spiral shape in the direction of the thin wall part and stopping the winding at the glue margin, and each thin wall part has an independent spiral shape in its diameter cross section at 14 locations along the longitudinal direction of the absorbent body. , the absorber can be bent finely from 14 points.

How to use: The absorbent body is stored in a bag and used by being applied to a private area between the diaper cover or underwear, with the private area being inserted into the space surrounded by the absorbent body following the opening.

In both the infant diaper, the sanitary absorbent body, and the adult male urination bag described above, the highly water-absorbent polymer in the absorbent body turns urine or menstrual fluid into a gel within a few minutes, so there is no risk of leakage.

Especially in the case of adult male (female) urinary bags, it should be kept within reach as a nighttime urinary bag for patients who are alert but have difficulty walking or are unable to walk due to physical illness or illness. For example, the patient can urinate into the urinary bag by himself or herself, and the patient also has the added convenience that urine will not flow out of the urinary bag even if he or she throws it under the bed after urinating.

Therefore, the present invention has the following advantages.

It has a flexible round rod shape that fits around the crotch, making it easy to wear and offering excellent wearability as it feels minimal when worn.

The internal space, which has a substantially spiral cross-section, does not hinder the physical expansion of the absorber itself as it absorbs water, guarantees the required absorption capacity, and exhibits water retention capacity, eliminating the phenomenon of backflow leakage.

It has the shape of a round rod and can be bent, curved, or rolled up freely from the position of its internal space, and is useful because it can be freely shaped into a desired shape according to the purpose, regardless of the direction of bending or curving. However, it does not cause an increase in material density around bent or curved parts, eliminates hardening phenomenon, retains flexibility, and is comfortable to wear.

[Brief explanation of drawings]

1 to 5 are perspective views showing each embodiment of the absorbent body of the present invention. FIG. 1A is an enlarged longitudinal sectional side view taken along line 1A-1A. FIG. 1B is an enlarged vertical sectional side view taken along line 1B-1B. FIG. 1a is a front view of the element body constituting the absorber of FIG. 1. FIG. 1b is a cross-sectional view taken along line 1b-1b. FIG. 2a is a front view of the element body constituting the absorber of FIG. 2. FIG. 2b is a cross-sectional view taken along line 2b-2b. FIG. 3a is a front view of the element body constituting the absorber of FIG. 3. Figure 3b is a cross-sectional view taken along line 3b-3b. FIG. 4a is a front view of the element body constituting the absorber of FIG. 4. Figure 4b is a cross-sectional view taken along line 4b-4b. FIG. 5a is a front view of the element body constituting the absorber of FIG. 5. Figure 5b is a cross-sectional view taken along line 5b-5b. FIG. 6 is an enlarged perspective view showing the absorbent body of FIG. 1 used for sanitary diapers or infant diapers. FIG. 7 is an enlarged perspective view showing the absorbent body shown in FIG. 2 used for sanitary diapers or baby diapers. 8th
The drawing is an enlarged perspective view showing the absorbent body shown in Fig. 3 used for urination. FIG. 9 is an enlarged perspective view showing the absorbent body of FIG. 4 used for urination. FIG. 10 is an enlarged perspective view showing the absorbent body of FIG. 5 used for urination. 1st
FIG. 1 is an enlarged perspective view showing an example of a urine bag constructed using the absorbent body of the present invention. In the figure, 1 is an absorber, 10 is an element body, 11 is a thin wall portion, and 12 is an internal space.

Claims (1)

[Scope of Claims] 1. A thin vertical band-like part is formed on a flat plate-like element having flexibility and water absorption, and this is wound vertically in a round spiral shape, and an inner part corresponding to the thin part is formed. A sanitary absorbent body formed by forming a space. 2. The sanitary absorbent article according to claim 1, wherein the number of the thin wall portions and the number of internal spaces are equal to one or more than two. 3. Forming a diagonal band-like thin wall part on a flat plate-like element body having flexibility and water absorption properties, and winding this in a round spiral shape in the vertical direction to form an internal space corresponding to the thin wall part. Sanitary absorbent material. 4. The sanitary absorbent article according to claim 3, wherein the number of the thin-walled portions and the number of internal spaces are equal to one or more than two. 5 Forming a vertical band-like thin wall part and a diagonal band-like thin wall part on a flat plate-like element body having flexibility and water absorption, and winding this in a round spiral shape in the vertical direction, and forming an inner part corresponding to both of the above-mentioned thin wall parts. A sanitary absorbent body formed by forming a space. 6. The sanitary absorbent article according to claim 5, wherein the number of the thin-walled portions and the number of internal spaces are equal to one or more than two.