JP5142014B2 - Absorber products - Google Patents

Description

  The present invention does not cause irregular deformation in the wearer's crotch (the crotch between both feet) when worn, and absorbs urine in a suitable state from the front to the rear in order to maintain a predetermined shape. The present invention relates to an absorbent product in which the body is effectively used.

  Absorbent products such as diapers for children or adults are generally separated by both sides of the waist and can be flattened, and the tape type of the type that removably connects the back waist and the front waist with a tape when worn And a tapeless type in the form of a pants in which a waist hole part and two leg holes are formed. Any type of absorbent product has a main body with an absorbent body on the inner surface side of the sheet-shaped leak preventer, and this main body is located on the front and crotch parts facing the abdomen of the wearer. The point which is applied to the lower part of the wearer in common is that they are applied to the opposite crotch relative part and the rear part opposite to the back part to constitute the basic form.

In the above absorbent product, the urine excreted in the worn absorbent product is surely absorbed by fully utilizing the absorbent to prevent leakage, and the excreted stool is in the crotch area of the wearer. Various inventions are disclosed as disclosed in Patent Documents 1 to 5 below in order to fully exhibit the function as an absorber, such as preventing it from adhering to the buttocks, and to further improve the convenience as an absorbent product. Proposed.
Japanese Patent Laid-Open No. 05-285168 JP 05-34003 A JP 2006-116157 A JP 2006-174966 A PCT / JP2006 / 326272

  However, since the conventional absorbent products have the following problems, the total amount of the absorbent body that the absorbent product has is not always sufficiently utilized. The structure for fully exhibiting the function as the disclosed absorber did not actually function sufficiently.

  Fig.29 (a) is a top view before the wear of the conventional tape type absorber product, The same figure (b) is a top view which shows the deformation | transformation state at the time of the wear. This absorbent product is provided with an absorbent on the inner surface side of a sheet-like leak preventer. As shown in FIG. 29 (b), the developed shape before use is on the wearer's abdomen when worn. The opposite front part, the crotch relative part opposite to the crotch part, and the rear part opposite to the back part are continuous, and as shown in FIG. Is provided. A leg gather is provided inside the recess, and a standing gather is provided along the absorber.

  According to the knowledge based on the experiment of the present inventor, when such an absorbent product is worn, the crotch relative part is deformed as shown in FIG. 29 (b) and becomes the narrowest part in the lateral width direction. Deformation is not regular, and causes various deformations that are difficult to predict depending on various conditions such as the wearer's body shape and how to wear, depending on the form, the fitting state to the wearer and the front part It is considered that there is a close relationship with the performance of the absorbent product, such as greatly affecting the mobility of the liquid from the back to the rear, and in some cases causing leakage particularly in the lying position.

  For absorbent products such as children's diapers, adult diapers, and feminine hygiene products, any part of the wearer's urine outlet, vaginal opening, or anus is crotch relative to the narrowed part of the worn absorbent product. Concentrated in and around the department. Therefore, as shown in FIG. 29 (b), when the product shape of the crotch relative part is changed greatly by wearing the absorbent product, this crotch is first used in order to exert the function of the absorbent product. It is considered that the structure and shape of the relative part in the worn state need to be such that the function as the absorbent product is not impaired.

  Therefore, the inventor of the present application attaches the crotch relative part of the absorbent product smoothly to the crotch part of the human body, and in order to fully exhibit the function of the absorber at the front part and the rear part sandwiching the crotch relative part, Occasionally, the Crotch Relative Absorber itself has come to be considered necessary to be able to reliably deform (or have a specific shape) into a specific shape that is preferred as a Crotch Relative part of the absorbent product. . In this way, the received liquid is blocked by the compressed and deformed crotch relative part and does not stop, and smoothly moves from the front part to the rear part. This is because it will be possible to fully utilize the absorber without leaving the front and rear absorbers.

  The present invention has been made to solve the above-mentioned problems newly recognized by the present inventor, and in a worn state, the crotch relative part has a certain shape preferable as an absorbent product, and the liquid received An object of the present invention is to provide an absorbent product that can be smoothly moved and absorbed from the front part to the rear part without stopping at the crotch relative part.

  In the absorbent product of the present invention, the structure of the absorbent body in the crotch relative part is at least a predetermined desirable shape and structure at the time of wearing, so that the liquid of the absorbent article is reliably received and the front part to the rear part It is supposed to make the movement of the liquid into the smooth. And, as for the method of imparting the specific structure to the crotch relative part, it may be molded in advance so as to have a predetermined structure and shape before wearing, and it should be worn although it is in a developed state before wearing. May be folded into a predetermined structure / shape.

  In addition, in order to give a special structure to the crotch relative part of the absorbent product and to ensure the forward and backward movement of the liquid, the above structure must not collapse even when the absorber of the crotch relative part absorbs the liquid and expands. is there. For this purpose, it is necessary to use an absorbent body having a structure in which the solid superabsorbent resin, which is a water-absorbing material, is difficult to move. For example, a solid superabsorbent resin (solid SAP) particles are placed on a nonwoven fabric base sheet so that part of the particles are exposed and part of the particles are exposed, and a fibrous material made of hot melt resin or the like is formed thereon. A superabsorbent composite sheet or the like having a structure in which a network is provided to hold the particles is used in the present invention because the solid SAP particles are hardly moved because they are covered with a fibrous network even if they absorb moisture. Suitable as an absorber.

Hereinafter, the structure of the absorbent product of the present invention will be described for each invention described in each claim.
The absorbent product according to claim 1 is:
A sheet-shaped leak preventer and an absorber provided on the inner surface side of the leak preventer, and a front part that faces the abdomen of the wearer when worn, a crotch relative part that faces the wearer's crotch part, and the wearer's crotch part In the absorbent product worn on the lower body of the wearer at the rear facing the back,
A channel-shaped gap that is folded and shaped into a predetermined shape that connects the front part and the rear part by deforming the absorber pressed between the crotch part of the wearer at least during wear and deforming along the outer wall. A cylindrical guide spacer having both ends opened is attached to the crotch relative portion so that the portion is configured as the crotch relative portion.

The absorbent product according to claim 2 is the absorbent product according to claim 1,
The shape of the absorbent product when the gap portion cuts the crotch relative portion in a surface intersecting with the direction in which the front portion and the rear portion communicate with each other,
Between the left and right side portions that are convex toward the inside of the absorbent product, at least the front side and the rear side of the gap are open toward the inside of the absorbent product. It is characterized by being molded into a shape.

The absorbent product according to claim 3 is the absorbent product according to claim 2,
The crotch relative part of the absorbent product is pre-folded into the predetermined shape before wearing.

The absorbent product according to claim 4 is the absorbent product according to claim 3,
The channel-shaped gap portion folded and shaped into a predetermined shape is configured to be continuous over the entire length of the absorber from the front end of the front portion through the crotch relative portion to the rear end of the rear portion. It is characterized by that.

The absorbent product according to claim 5 is the absorbent product according to claim 2,
The crotch relative part of the absorbent product is in a state where the predetermined shape is unfolded before wearing, and is folded into the predetermined shape when worn.

The absorbent product according to claim 6 is the absorbent product according to any one of claims 1 to 5,
At least the absorber in the relative part of the crotch is a highly water-absorbent composite sheet in which a solid superabsorbent resin is held on a sheet .

The absorbent product according to claim 7 is the absorbent product according to any one of claims 1 to 6,
A guide unit for guiding the wearer's urine to the gap portion or the guide spacer of the crotch relative portion is provided between the front portion and the crotch relative portion.

The absorbent product according to claim 8 is the absorbent product according to claim 7,
A front end portion of the guide unit is coupled to the front portion, and a rear end portion thereof is coupled to the crotch relative portion and is opposed to the gap portion.

The absorbent product according to claim 9 is the absorbent product according to any one of claims 1 to 8,
The gaps of the crotch relative part are at least a distance between a pair of side leakage bands for preventing liquid leakage provided on both sides of the absorber at the front part, the crotch relative part and the rear part. Is set to be equal to the opening width of the opening.

The absorbent product according to claim 10 is the absorbent product according to claim 9,
The pair of side elastic bands in the plan view with the front part on the upper side so that the distance between the pair of side elastic bands becomes narrower toward the front part and wider toward the rear part. It is characterized by being arranged so as to have an inverted V shape with the front as a vertex.

The absorbent product according to claim 11 is the absorbent product according to claim 10,
The front end portions of the pair of side stretchable bands are arranged so as to cross each other at the front portion, so that the front end portions of the pair of side stretchable bands and the absorber in the front portion are disposed. It is characterized in that a pocket into which the wearer's urine flows is formed.

The absorbent product according to claim 12 is the absorbent product according to any one of claims 1 to 11,
A separation separator is provided between the front part and the rear part to divide the front part for storing the wearer's urine and the rear part for storing stool.

The absorbent product according to claim 13 is the absorbent product according to claim 12,
An opening exclusively for passing urine is provided in the front part, and an opening only for passing stool is provided in the rear part.

According to the absorbent product described in claim 1, since the cylindrical guide spacer whose both ends are open is attached to the crotch relative part, the absorber of the crotch relative part is at least the outer wall of the guide spacer when worn. Since the shape and structure of connecting the front part and the rear part with a gap part by deforming along the gap, the liquid such as urine discharged by the wearer can pass through the liquid without stopping at the crotch relative part. It can move smoothly from the front part to the rear part. For this reason, it becomes possible to fully utilize the front and rear absorbers without leaving them. Furthermore, since the guide spacer provided in the gap portion of the crotch relative portion communicates the front portion and the rear portion, the liquid such as urine discharged by the wearer to the front portion is surely secured without stopping at the crotch relative portion. You can move to the rear after passing through. For this reason, urine does not leak in the lateral direction, and the effect of fully utilizing without leaving the front and rear absorbers can be obtained more reliably.

  According to the absorbent product described in claim 2, the crotch relative portion when worn is partitioned by the convex left and right side portions, and the front side and the rear side of the space are directed inward. Open.

  According to the absorbent product described in claim 3, since the crotch relative part of the absorbent product is folded into a predetermined shape before wearing, it is opposed to the crotch part in a predetermined shape when worn.

  According to the absorbent product described in claim 4, the channel-shaped gap portion that is folded and molded into a predetermined shape continuously extends over the entire length of the absorbent body from the front part to the rear part through the crotch relative part. Therefore, the liquid such as urine discharged by the wearer at the front part can enter the gap part at the front part and move smoothly from the crotch relative part to the rear part, and the effect that it can be fully used without leaving all the absorbers is further increased. Rise.

  According to the absorbent product described in claim 5, the crotch relative part of the absorbent product is in a state where the predetermined shape is unfolded before wearing, but is folded into the predetermined shape when worn and is opposed to the crotch part. .

According to the absorbent product described in claim 6, since at least the absorber of the crotch relative part is a superabsorbent composite sheet in which the solid superabsorbent resin is held on the sheet, it absorbs the liquid and expands. In this case, the solid superabsorbent resin is difficult to move, and the special structure of the crotch relative portion does not collapse, so that the liquid can be moved back and forth by the structure.

  According to the absorbent product described in claim 7, the guide unit provided between the front part and the crotch relative part allows the wearer to discharge liquid such as urine to the front part. Since it is guided to the spacer, the action of moving the liquid such as urine discharged by the wearer to the front part is further ensured, and therefore, the action of fully utilizing the front and rear absorbers without leaving the front part and the rear part is further enhanced. It is definitely obtained.

  According to the absorbent product described in claim 8, the front end portion of the guide unit is coupled to the front portion, and the rear end portion is coupled to the crotch relative portion and is opposed to the gap portion. The action of moving the liquid such as urine discharged to the front part to the rear part through the gap is further ensured.

  According to the absorbent product described in claim 9, a pair of side elastic bands for preventing liquid leakage are provided on both sides of the front, the crotch relative part, and the rear part of the absorbent body, and the distance between them when worn. Since the opening width of the gap portion of the crotch relative portion is set to be equal to that of the crotch relative portion, urine or the like flowing into the crotch relative portion is less likely to leak outside even when worn.

  According to the absorbent product described in claim 10, a space in which urine flows is formed between the pair of side stretchable bands whose intervals are set relatively narrow in the front part, and the crotch relative part is on the pair of sides. The urine etc. which flowed in from the space of the front part surrounded by the elastic band is divided so that it may not leak outside.

  According to the absorbent product described in claim 11, since a pocket is formed between each front end of the pair of side elastic bands disposed in a cross and the front absorbent, The person's urine is less likely to leak on the front side.

  According to the absorbent product described in claim 12, the wearer's urine and feces can be separated and accommodated by the separation separator.

  According to the absorbent product described in claim 13, the urine discharged to the front is absorbed by the front absorber separated by the separation separator from the opening exclusively for urine passage, and the stool discharged to the rear is It is hold | maintained on the absorber of the rear part isolate | separated with the separation separator from the opening only for feces passage.

Next, the best mode of the present invention (hereinafter also referred to as this example) will be described.
Although the embodiments include various variations, the reference numerals given to the constituent elements of the embodiments shown in the drawings are principally the case where they are substantially equivalent as the constituent elements of the invention regardless of the variations. The same reference numerals are attached, and various forms of the invention are described in a unified manner, and the above-described explanation is appropriately incorporated as necessary, thereby avoiding complications due to distinction of reference signs.

1. About the experiment conducted by the present inventor When the absorbent product is worn in the section of “Problems to be solved by the invention” above, the crotch relative part causes an irregular deformation that is difficult to predict. It was recognized that the liquid mobility from the front part to the rear part has a great influence. In this section, the inventor of the present application gained such recognition and led to a new subject of the present invention, and also an experiment that provided the knowledge of the shape and structure required for the crotch relative part of the absorbent product. A brief explanation will be given.

  Table 1 examines and lists the structural elements of the absorbent product that are affected by the deformation of the crotch relative part when the conventional absorbent product is worn. Among the structural elements of the absorbent products listed here, it is particularly susceptible to the influence of the function of the absorbent product and the deformation of the absorbent and the side elastic bands (for example, standing gathers, (Referred to as inner gather, leg gather, etc.).

  In the experiment described below, the crotch relative part was deformed artificially, imitating the case where the absorber of the crotch relative part was actually worn, installed in an inclined state, and liquid was allowed to flow from above, and the deformed crotch relative part We adopted a method of evaluating the mobility of the liquid.

(1) Items to prepare ・ Tape-type diapers as absorbent products (Fig. 1)
・ Spring clip for fixing crotch relative part (Fig. 2)
・ Inclined specimen stage A stage with the center upper part set to 45 degrees and the lower part set to 30 degrees (Figure 3)
・ Quantitative pump flow rate 7mL / sec, flow rate 50mL / time ・ 0.9% saline, stopwatch, etc.

(2) Test procedure
1) A sample absorber product (diaper) is assumed to be a crotch relative portion up to a length of 30 mm in the abdomen from the center in the longitudinal direction, and a point 50 mm away is a liquid injection point (see FIG. 1).
2) The crotch relative part is sandwiched between clips (see FIG. 2) so that the absorber of the crotch relative part has a predetermined shape, and the width direction of the diaper is deformed.
3) Spread the abdomen and back of the diaper flat and place the standing gather in the clip in the upright position.
4) Install the liquid injection point on the inclined surface at 45 degrees above the inclined sample table (see Fig. 3), and install the diaper on the inclined sample table. The arrangement of diapers is as follows. That is, with the abdomen (front) of the diaper facing upward, the back (rear) facing down, and the diaper facing upward on the tilted sample stage so that the crotch relative part is located at the top of the inclined surface on the lower side of 30 degrees Put on. In addition, the abdomen and the back are stopped in an unfolded state (the surface of the inclined sample table where the clip hits must be cut out).
5) From the top of the liquid injection point, 50 mL of 0.9% physiological saline is dropped and injected at a flow rate of 7 mL / sec. At this time, the tip of the liquid injection tube (inner diameter 2 to 6 mmφ) is separated from the sample surface by about 10 mm.
6) Measure the time from the start of liquid injection until it is absorbed by the diaper and the diffusion distance to the abdomen and back.
7) Repeat steps 5) to 6) three times at 5-minute intervals.
8) The setting of the crotch width is changed under the conditions of FIGS. 4A to 4D by holding a stopper at the tip of the clip.

  When the absorbent product is actually worn, the crotch relative part shows various deformations and seems to be deformed at random, but the width of the absorber, the thickness of the absorber, if there is one absorber, or absorption Depending on the ease of deformation and properties of the absorber, such as when the body is folded, it can be classified into four patterns a to d as shown in FIG. 5, for example. Such an example is obtained.

  Then, the crotch relative part deformed in various patterns is reproduced by sandwiching the sample with clips, and the above-mentioned experiment is performed on the prepared various samples. Based on the experimental result, the absorber in the crotch relative part is desirable. The deformation state and its dimensions (size) were considered. As a result, from the start of liquid injection until it is absorbed by the diaper and the diffusion distance to the abdomen and back, the movement of the liquid from the front to the rear is not obstructed, and the front and rear As for the desirable state of deformation of the absorber (deformed shape of the crotch relative portion) in which the absorber is effectively used, the central portion in the width direction swells to the back seat side (outside of the worn diaper) in the pattern of FIG. And a valley shape such as b to f having a gap in the center, or an M shape d to h.

  Here, the valley type and the M type are distinguished as belonging to different types, but these have the same effect of not hindering the movement of the liquid from the front part to the rear part. It has a structure. That is, as shown in FIG. 6, when both molds are viewed in a cross section perpendicular to the direction connecting the front and rear, both left and right side portions (mountains) 1, which are convex toward the inside of the absorbent product, 1 and the left and right side portions 1 and 1 are common in that a channel-shaped gap portion 2 opened toward the inside of the absorbent product is provided.

  Therefore, the difference between the valley type and the M type is the presence or absence of the skirt 3 of the left and right side portions 1, 1, or the difference in length. In both cases, a channel-shaped gap 2 is defined between the left and right side portions 1, 1. In the present invention, the presence of the channel-shaped gap portion 2 is considered important.

  In the following, various examples of the shape and structure of the crotch relative part having the gap 2 will be described, and specific embodiments as an absorbent product having the crotch relative part will be described.

2. Various shape examples of the absorber provided in the crotch relative part (FIGS. 7 and 8)
In the absorbent product of the present invention, the absorber of the crotch relative part is shaped in advance into a predetermined shape and structure (molded) to ensure the reception of the liquid of the absorbent article, and further from the front part. Smooth movement of the liquid to the rear. FIG. 7 and FIG. 8 are cross-sectional views when the crotch relative portion is cut along a plane orthogonal to the gap portion 2 that communicates the front portion and the rear portion of the absorbent product, and is given to the absorber of such a crotch relative portion. An example of a predetermined shape is shown.

  FIG. 7A shows an absorbent product in which the gap 2 is provided between the left and right side parts 1 and 1 that are convex toward the inside of the absorbent product, and the front part and the rear part communicate with each other. It is an example opened in the shape of a groove along the longitudinal direction toward the inward side (open type).

  In FIG. 7 (b), the left and right side parts 1, 1 that are convex toward the inside of the absorbent product are joined at the center of the crotch relative part (joint part 4). 1 is an example in which a gap 2 provided between 1 and communicating the front part and the rear part is opened toward the inside of the absorbent product in the front part and the rear part other than the joint part 4 (joining Type).

  8A shows a case where the guide spacer 5 is disposed in the open-type gap 2 shown in FIG. 7A, and FIG. 8B shows the joint-type gap 2 shown in FIG. 7B. A guide spacer 5 is arranged inside. The guide spacer 5 is a cylindrical member made of, for example, a resin with both ends open, and is disposed in the gap 2 to more reliably communicate the front and rear portions inside the absorbent product, and the crotch relative portion. Prevents deformation and shape loss. That is, in the open type or the joined type, it is not unthinkable that the gap 2 is blocked for some reason, but a tubular member having a certain degree of rigidity is arranged in the gap 2 as in this example. By doing so, a path through which the liquid flows from the front part to the rear part is secured.

  In addition, in order to give a special structure to the crotch relative part of the absorbent product of this example and ensure the forward and backward movement of the liquid, the above structure is also applied when the absorber of the crotch relative part absorbs the liquid and expands. It is necessary to not collapse. For that purpose, it is necessary to use an absorber having a structure in which the solid superabsorbent resin as the water absorbing material is difficult to move. For example, a solid superabsorbent resin (solid SAP) particles are placed on a nonwoven fabric base sheet so that part of the particles are exposed and part of the particles are exposed, and a fibrous material made of hot melt resin or the like is formed thereon. A superabsorbent composite sheet having a structure in which the particles are held by providing a network, for example, a sheet-like absorber by the airlaid method (manufactured by Oji Kinocross), a megacin absorber by the SAP coating method (manufactured by Nippon Absorbent Technology Laboratory), etc. Even if solid SAP particles absorb moisture, they are covered with a fibrous network and are difficult to move. Therefore, the solid SAP particles are suitable as an absorber used in the present invention.

3. Guide spacer 5 and its type (Fig. 9)
FIG. 9 shows various examples of the guide spacer 5 provided in the gap 2 of the crotch relative portion. FIG. 9A shows a folded nonwoven fabric sheet. FIG. 2B shows a sheet which is not a complete cylinder but is formed into a tube shape having a substantially cylindrical shape. FIG. 2C shows a sheet formed in a coil shape. FIG. 4D shows a composite in which a nonwoven fabric is provided on the outer surface side of a film formed into a cylindrical shape. FIG. 4E shows a tow-like mat that is formed by sticking fiber bundles into a rod shape. FIG. 5 (f) shows an example in which SAP is provided on the outer surface of the sheet-shaped absorbent body having the same shape as (b), and FIG. FIG. 11H is a composite type in which a core material is provided on the inner surface of a sheet-like film having the same shape as FIG.

4). Regarding the positional relationship between the side elastic band and the absorber in the wearer's crotch part (FIGS. 10 and 11)
As shown in FIG. 10, the absorbent product of this example worn on the lower body of the wearer has the absorber 15 of the crotch relative portion 10 described above together with the leak preventer (back sheet 16) provided on the outside thereof. The upper end edge of the left and right side portions 1, 1 is in contact with the wearer's crotch so that the urination port and the anus are almost in contact with the opening channel in the longitudinal direction of the opening channel of the gap portion 2 or the opening channel. Is located. That is, if the width of the opening of the gap portion 2 is X1 and the width of the crotch portion of the wearer is X2, as shown in FIGS. 10 and 11, X2> X1, The left and right side parts 1 and 1 are in contact with the wearer's crotch part in a stable manner so as not to obstruct the movement of discharged urine and feces. Further, as shown in FIG. 10 and FIG. 11, side stretchable bands 17 are provided on both outer sides of the opening of the gap portion 2, and the gather head 18 is disposed outside the opening of the gap portion 2. To prevent liquid leakage.

5). Arrangement relationship between the crotch relative part and other components in the absorbent product (FIGS. 12 and 13)
12 and 13 are cross-sectional views of the crotch relative portion 10 of the absorbent product of the present example taken along the same cut plane as in FIGS. 7 and 10.
FIG. 12 (a) shows the valley-shaped absorber product, and FIG. 12 (b) shows the M-type absorber product, both of which are sheet-like leak preventers on the outer surface side of the absorber product. It has a basic structure in which an absorbent body 15 is housed between a certain back sheet 16 and a liquid-permeable top sheet 19 that is the inner surface side of the absorbent product, and the crotch relative portion 10 of the absorbent product is It is molded into a predetermined shape having a gap 2 that communicates the front and rear portions. Further, in any of the absorbent products (a) and (b), an outer gather 20 is provided integrally with the back sheet 16 at the side edge of the back sheet 16, and an inner side is provided inside the side edge of the back sheet 16. The gathers 21 are provided so as to rise upward and prevent leakage of liquid from the crotch relative portion.

  FIG. 13 (a) shows the valley-shaped absorber product, and FIG. 13 (b) shows the M-type absorber product, both of which are sheet-like leak preventers on the outer surface side of the absorber product. It has a basic structure in which an absorbent body 15 is housed between a certain back sheet 16 and a liquid-permeable top sheet 19 that is the inner surface side of the absorbent product, and the crotch relative portion 10 of the absorbent product is It is molded into a predetermined shape having a gap 2 that communicates the front and rear portions. Further, in both the absorbent products (a) and (b), the side stretchable bands 17 are integrally provided on the side edges of the back sheet 16 along the longitudinal direction. The side elastic band 17 forms a structure of an absorbent product that is defined by the gap 2 together with the back sheet 16. In addition to functioning as a cushion in contact with the wearer's skin when worn, the side elastic band 17 is also shown in FIG. Similar to the two gathers 20 and 21 in the body product, it also has a function of preventing liquid leakage.

6). About given form and structure of the crotch relative portion 10 (FIGS. 14 and 15)
In each of the examples described above, the crotch relative portion 10 was previously formed into a predetermined shape including the gap portion 2 that communicates the front portion and the rear portion. Although the crotch relative portion 10 does not have a predetermined shape having the gap portion 2, it becomes the predetermined shape when worn.
FIG. 14 and FIG. 15 show two structural examples of the absorbent product of this example, and show cross-sectional views of the crotch relative portion 10 at the same cut surface as FIG. 12 and FIG.

  Fig.14 (a) is sectional drawing which shows the widened state before wearing in the 1st structural example, The same figure (b) is sectional drawing which shows the folding state at the time of the wearing. In the absorbent product of the structural example shown in FIG. 14, the absorber 15 is housed between a back sheet 16 that is a sheet-like leak preventer on the outer surface side and a liquid-permeable top sheet 19 on the inner surface side. A side stretchable band 17 is raised at each edge on both sides. Further, the deformation guide is provided in the central portion on the inner surface side of the crotch relative portion 10 so as to exhibit the M shape or the valley shape in which the gap portion 2 that communicates the front portion and the rear portion of the absorbent product is formed in the crotch relative portion 10 when worn. A plate 25 is attached. The deformation guide plate 25 has a rectangular shape, and is divided into three rectangular portions including a central portion 27, a right portion 28, and a left portion 29 by two fold lines 26 parallel to the front-rear direction of the absorbent product (the direction perpendicular to the paper surface in the figure). The central portion 27 is joined to the top sheet 19 at the joint portion 30, and the left and right side portions 28 and 29 are swingable at the two folds 26 and 26 and can be bent inward. ing.

  Therefore, as shown in FIG. 14 (a), before wearing, the crotch relative portion 10 is flat and widened to the maximum width, and the left and right side portions 28 and 29 of the deformation guide plate 25 are opened outward. However, if this is worn, the absorber 15 of the crotch relative portion 10 is compressed inward as shown in FIG. Then, the left and right side portions 28 and 29 of the deformation guide plate 25 are pushed inward by the absorber 15 to be in a substantially triangular shape, and the left and right side portions 28 and 29 of the deformation guide plate 25 are pushed. Is the left and right side portions 1, 1 that are convex toward the inside of the absorbent product, and the gap portion 2 that communicates in the front-rear direction in cooperation with the deformation guide plate 25 is defined therebetween. Become. In this case, the internal space of the deformation guide plate 25 folded into a substantially triangular shape is also communicated with the front and rear as the gap 2.

  Fig.15 (a) is sectional drawing which shows the widened state before wearing in the 2nd structural example, The figure (b) is sectional drawing which shows the folding state at the time of the wearing. In the absorbent product having the structure example shown in FIG. 15, the absorbent body 15 is accommodated between a back sheet 16 that is a sheet-like leak preventer on the outer surface side and a liquid-permeable top sheet 19 on the inner surface side. A side stretchable band 17 is provided at each edge on both sides. Further, a molding guide is provided at the central portion on the inner surface side of the crotch relative portion 10 so as to exhibit the M shape or the valley shape in which the gap portion 2 communicating the front portion and the rear portion of the absorbent product is formed in the crotch relative portion 10 when worn. A guide spacer 5 serving as a means is attached. As described above with reference to FIGS. 8 to 9, the guide spacer 5 is a member that is provided in the crotch relative portion 10 and secures the gap portion 2 by communicating the front and rear of the absorbent product. It itself is also a member that guides the deformation mode of the absorber 15 that is sandwiched and compressed by the crotch portion. That is, the center part of the guide spacer 5 is joined to the top sheet 19 at the joint part 30 at the center of the crotch relative part 10, and the absorbent body 15 sandwiched and compressed by the wearer's crotch part when worn is a guide. Since it deforms into a substantially circular cross section along the circumferential outer wall of the spacer 5, the gap 2 is secured inside thereof.

  That is, as shown in FIG. 15 (a), before wearing, the crotch relative portion 10 has a flat shape widened to the maximum width, but when worn, as shown in FIG. 15 (b), The absorbent body 15 of the portion 10 is compressed inward, and the pushed absorbent body 15 is deformed along the surface of the guide spacer 5 and becomes a convex shape toward the inside of the absorbent product. The gap portions 2 that are both side portions 1 and 1 and communicate with the guide spacer 5 in the front-rear direction are partitioned. In this case, as described above, the internal space of the guide spacer 5 also becomes the gap 2.

7). About given form and structure of the crotch relative portion 10 (FIGS. 16 to 18)
FIGS. 16-18 is a figure which shows the example of a specific structure containing the dimension of the crotch relative part 10 of the absorber product which has the deformation | transformation guide plate 25 as shown in FIG. , (B) are a plan view and a cross-sectional view, respectively.

  In the absorbent product shown in FIG. 16, the deformation guide plate 25 provided on the inner surface side (top sheet 19) of the crotch relative portion 10 is connected to the central portion 27 by two slits 31 parallel to the front-rear direction of the absorbent product. The plate material divided into three rectangular portions of the right side portion 28 and the left side portion 29 is substantially the same as that shown in FIG. 14, but the point that the entire surface is joined to the top sheet 19 is that of FIG. 14. Not the case. According to this structure, when the crotch relative portion 10 is sandwiched and compressed by the wearer's crotch portion when worn, the left and right side portions 28 and 29 of the deformation guide plate 25 are provided with two slits 31 with respect to the central portion 27. , 31, and the crotch relative portion 10 is deformed into the M shape or the valley shape to secure the gap portion 2.

  The absorbent product shown in FIG. 17 is substantially the same as the structure of FIG. 14, the central portion 27 of the deformation guide plate 25 is joined to the top sheet 19, and the right side portion 28 and the left side portion 29 are not joined. According to this structure, when the crotch relative portion 10 is sandwiched and compressed by the wearer's crotch portion when worn, the left and right side portions 28 and 29 of the deformation guide plate 25 are provided with two slits 31 with respect to the central portion 27. , 31, and the crotch relative portion 10 is deformed into the M shape or the valley shape to secure the gap portion 2.

  In the absorbent product shown in FIG. 18, the deformation guide plate 25 provided on the inner surface side (top sheet 19) of the crotch relative portion 10 is an integral structure deformation guide plate 25 shown in FIGS. 14, 16, and 17. And different. The deformation guide plate 25 is composed of two sheets having dimensions corresponding to the right side portion 28 and the left side portion 29 in the deformation guide plate 25 of FIG. 16, and these are joined to the top sheet 19 at intervals. According to this structure, when the crotch relative part 10 is sandwiched and compressed by the wearer's crotch part at the time of wearing, the right side part 28 and the left side part 29 joined together with the absorber 15 are not bent. The portions 28 and 29 are deformed so as to rise together with the absorber 15, and the gap 2 is defined between the absorbers 15 between the side portions 28 and 29, so that the crotch relative portion 10 is the M-type or valley-type. It becomes.

8). Specific Embodiment as Absorber Product (FIGS. 19 to 22)
This example relates to a tape-type diaper which is an absorbent product having the crotch relative portion 10 having the shape and structure as described above. FIGS. 19 (a) and 19 (b) show the above-described M in the crotch relative portion 10. FIG. FIG. 20A is a plan view before shaping the mold structure and a cross-sectional view of the crotch relative portion 10. FIGS. 20A and 20B are a plan view and a crotch relative portion after shaping the M-type structure. FIG. FIG. 21 is a developed plan view of a structure example of the diaper manufactured in the steps shown in FIGS. 19 and 20, and FIG. 22 is a cross-sectional view in FIG.

  The diaper 40 has a rectangular shape smaller than these two sheets between a substantially rectangular back sheet 16 that is a sheet-like leak preventer and a substantially rectangular liquid-permeable top sheet 19 that is in contact with the wearer's skin. It is composed of a main body in which the absorber 15 is housed and the outer edge is sealed, and a front part 11 that faces the wearer's abdomen when worn, a crotch relative part 10 that faces the wearer's crotch part, and the wearer's back It is worn by attaching the front part 11 and the rear part 12 with the tape 41 which can be attached and detached on both sides | surfaces of a wearer's trunk | body at the rear part 12 opposite to a wearer's trunk | drum.

  As shown in FIGS. 19 and 20, outer gathers 20 are continuously formed on both side edges of the main body from the front portion 11 through the crotch relative portion 10 to the rear portion 12. Further, on the inner side of the outer gather 20, a side elastic band 17 is provided on the inner upper part of the main body absorber 15 from the front part 11 through the crotch relative part 10 to the rear part 12. The side elastic band 17 is formed of a non-woven fabric band connected to the main body and raised inward, and an elastic body such as rubber provided at the upper edge of the band. It is in close contact with the wearer's skin and prevents liquid leakage.

As shown in FIGS. 19 (a) and 20 (a), the pair of side elastic bands 17, 17 are arranged in an inverted V shape with the front portion 11 (upper part in the figure) as a vertex. Therefore, a pocket 42 into which the wearer's urine flows is formed between each front end portion of the pair of side elastic bands 17 and 17 and the absorber of the front part 11, and the pair of side elastic bands 17, The distance 17 is narrower as it goes to the front part 11 and wider as it goes to the rear part 12. That is, as shown in FIG. 19A, the distance between the side elastic bands 17, 17 is a value X ₁ at the front part 11 closer to the crotch relative part 10 than the pocket 42 and a value X at the crotch relative part 10. And, in the value X ₂ in the rear portion 12, X ₁ <X <X ₂ is satisfied, and as shown in FIG. 20A, the opening width of the gap portion 2 of the crotch relative portion 10 is opened. The distance X between the pair of side elastic bands 17 and 17 in the crotch relative portion 10 is larger.

As shown in FIG. 19, after manufacturing the diaper 40 using the flat absorbent body 15, the crotch relative part 10 is compressed from the left and right directions as shown in FIG. When formed into an M shape, a diaper 40 as shown in a developed plan view of FIG. 21 is obtained. Cross sections along the _three cutting lines X ₁ -X ₁ ′, X ₂ -X ₂ ′, and X ₃ -X ₃ ′ shown in FIG. 21 are shown in FIGS. 22 (a), (b), and (c).

  According to the diaper 40 having the structure of the present example, the pair of side elastic bands 17, 17 provided in the vicinity of the absorber 15 constitute the pocket 42 in the front part 11, and the crotch relative part 10. They are arranged at an appropriate interval so as to sandwich the gap 2. Therefore, since the urine discharged by the wearer flows into the pocket 42 of the front portion 11 surrounded by the pair of side elastic bands 17, 17, leakage at the front end is unlikely to occur, and urine is further absorbed by the front portion 11. 15, it moves from the pocket 42 through the gap 2 of the crotch relative portion 10 to the rear portion 12 and is also absorbed by the absorber 15 of the crotch relative portion 10 and the rear portion 12. It will be efficiently used to absorb the liquid, and the leakage will be less likely to occur.

9. Specific embodiment as absorbent product (FIGS. 23 and 24)
This example relates to a tapeless diaper 50 as an absorbent product having the crotch relative portion 10 having the shape and structure as described above. FIG. 23 is a developed plan view, and FIG. FIG. 24B is a longitudinal sectional view taken along the line YY ′ of FIG. 23.

  The diaper 50 shown in FIG. 23 is a tapeless type (pants type), and the figure shows its developed shape. The diaper 50 has a main body in which a folded absorbent body 15 smaller than the back sheet 16 is disposed on the inner surface side of a substantially rectangular back sheet 16 that is a sheet-like leak preventer.

  As shown in FIGS. 24A and 24B, the main body composed of the back sheet and the absorbent body covers not only the crotch relative portion 10 but also the front portion 11 to the rear portion 12 through the crotch relative portion 10. The folded portion is continuously formed by folding, and is formed into the M shape or the valley shape including the channel-shaped gap portion 2 communicating from the front portion 11 through the crotch relative portion 10 to the rear portion 12.

Specifically, such a structure is shown in the cross-sectional view of FIG. 24A of an SAP sheet (for example, a sheet-shaped absorber manufactured by Nippon Absorbent Technology Laboratory called Megacin) that has been previously formed into a sheet shape. Thus, it can be configured to be folded over the entire surface.
As shown in FIGS. 23 and 24 (a), the side elastic bands 17 that contact the wearer's skin are formed on both side edges of the main body having a communication channel from the front part 11 to the rear part 12 through the crotch relative part 10. Are formed continuously.

  A stretchable waistband 51 that is worn on the wearer's waist when worn is integrally attached to the front portion 11 and the rear portion 12 of the main body at right angles to the rectangular longitudinal direction of the main body. Both ends of the bands 51 and 51 are joined together to form a pants form. As shown in FIGS. 23 and 24B, a front pocket 52 is formed between the waistband 51 and the front portion 11 of the main body, and between the waistband 51 and the rear portion 12 of the main body. A rear pocket 53 is formed.

  As shown in FIGS. 23 and 24, the diaper 50 is provided with a liquid guide unit 54 that guides the wearer's urine to the gap 2 of the crotch relative portion 10 between the front portion 11 and the crotch relative portion 10. . The liquid guide unit 54 is a rectangular tape having a width (about 3 times in the drawing) that is about half the length of the main body and larger than the opening width of the gap 2 of the crotch relative portion 10 of the main body. It is attached close to the person's urethral opening and plays the role of guiding the urine further backwards. The front end of the liquid guide unit 54 is coupled to the front waistband 51 inside the front pocket 52, and the rear end is coupled to the crotch relative portion 10 so as to face the gap portion 2.

  At the time of wearing, the leg is passed through the leg hole between the main body and the waistband 51, and the main body is attached to the abdomen and back of the lower body with the crotch part of the wearer as the center. The waist band 51 contacts the wearer's waist, the side elastic band 17 of the main body contacts the skin around the base of the wearer's leg, and the vicinity of the wearer's urethral opening contacts the liquid guide unit 54. The front part 11, the crotch relative part 10, and the rear part 12 of the main body are opposed to the wearer's abdomen, crotch part, and back part, respectively.

  According to the diaper 50 having the structure of the present example, the urine discharged by the wearer is absorbed by the absorber 15 of the front part 11 and the front part 11 has the front pocket 52, so that leakage at the front end is unlikely to occur. . Furthermore, urine is guided by the liquid guide unit 54 and moves from the urine outlet to the rear portion 12 through the gap 2 of the crotch relative portion 10 and is also absorbed by the absorber 15, so that the entire amount of the absorber 15 is efficiently liquid. As a result, the leakage becomes even less likely to occur. Even if the urine discharged on the liquid guide unit 54 is not guided to the rear part 12 due to a change in the posture of the wearer or the like but flows forward, the front end of the liquid guide unit 54 has a crescent moon as shown in FIG. Since the slit is formed as a return port 55 (return zone), urine falls from the return port 55 onto the absorber of the front portion 11 and is absorbed and leaks further out from the front pocket 52. There is no.

10. Specific embodiment as absorbent product (FIGS. 25 and 26)
This example relates to a tapeless diaper 50 as an absorbent product having the crotch relative portion 10 having the shape and structure as described above. FIG. 25 is a developed plan view, and FIG. FIG. 26B is a longitudinal sectional view taken along the line YY ′ of FIG. 25.

  The diaper 50 shown in FIG. 25 is a pants-type tapeless type (pants type), and the figure shows its developed shape. The diaper 50 has a structure having a channel and a side edge band which are substantially the same as those of the diaper 50 shown in FIG. 23, but does not have the liquid guide unit 54, and the crotch relative portion 10 (or the front 11 and the rear 12 In the middle), a separation separator 56 is provided for dividing the front part 11 for accommodating the wearer's urine and the rear part 12 for accommodating the stool. The separation separator 56 is made of a liquid-impermeable sheet, and is attached so as to bridge between the pair of side elastic bands 17, 17 integrally formed with the back sheet 16, and rises substantially perpendicular to the main body. It is a wall-like structure.

  As shown in FIG. 26, at the lower end of the separation separator 56, a stool receiving sheet 57 is integrally provided continuously toward the rear end part, and the stool receiving sheet 57 is drawn around the rear part 12 to be connected to the rear part 12. This is disposed on the absorbent body 15 to form a stool-dedicated housing. That is, the stool receiving sheet 57 is separated from the absorber 15 of the rear portion 12 in the vertical direction, and the stool accommodated on the upper stool receiving sheet has an arrangement relationship that does not contact the urine absorbed by the lower absorber. The urine that has moved from the portion 11 is diffused and permeated between the feces receiving sheet 57 and the absorber 15 of the rear portion 12 and absorbed by the absorber 15 of the rear portion 12.

  At the time of wearing, the leg is passed through the leg hole between the main body and the waistband 51, and the main body is attached to the abdomen and back of the lower body with the crotch part of the wearer as the center. The waistband 51 contacts the wearer's waist, the side elastic band 17 of the main body contacts the skin around the base of the wearer's leg, and the vicinity of the wearer's perineum contacts the separation separator 56. The front part 11, the crotch relative part 10, and the rear part 12 of the main body are opposed to the wearer's abdomen, crotch part, and back part, respectively.

  According to the diaper 50 having the structure of the present example, the urine discharged by the wearer is absorbed by the absorber 15 of the front part 11 and the front part 11 has the front pocket 52, so that leakage at the front end is unlikely to occur. . Furthermore, urine passes from the front portion 11 through the gap portion 2 of the crotch relative portion 10, enters the lower side of the separation separator 56 and enters between the stool receiving sheet 57 and the absorber 15 of the rear portion 12, and the crotch relative portion 10 and the rear portion 12. Therefore, the entire amount of the absorber 15 is efficiently used for absorbing the liquid, and the leakage is less likely to occur.

11. Specific embodiment as absorbent product (FIGS. 27 and 28)
This example relates to a tapeless diaper 50 as an absorbent product having the crotch relative portion 10 having the shape and structure as described above. FIG. 27 is a developed plan view, and FIG. FIG. 28B is a longitudinal sectional view taken along the line YY ′ of FIG. 27.

  The diaper 50 shown in FIG. 27 is a pants-type tapeless type (pants type), and the figure shows its developed shape. The diaper 50 has substantially the same structure as the diaper 50 having the separation separator 56 and the stool receiving sheet 57 shown in FIG. 25 except that a skin contact sheet 58 is further provided.

  As shown in FIGS. 27 and 28, the skin contact sheet 58 is a sheet provided over the front portion 11, the crotch relative portion 10, and the rear portion 12 above the opening of the absorbent body 15 and the gap portion 2. A urine dedicated passage opening 59 is formed at a position corresponding to the front of the absorber 15 with the border as a boundary, and a stool dedicated passage opening 60 is formed at a position corresponding to the rear of the absorber 15. An opening stretchable material 61 is provided on at least a part of the periphery of both openings 59, 60, and the liquid or the like flows backward from both openings 59, 60 in contact with the wearer's skin to remove the wearer's skin. It is configured so as not to be soiled.

  At the time of wearing, the leg is passed through the leg hole between the main body and the waistband 51, and the main body is attached to the abdomen and back of the lower body with the crotch part of the wearer as the center. The waistband 51 contacts the wearer's waist, the side elastic band 17 of the main body contacts the skin around the wearer's leg, and the skin contact sheet 58 is placed on the wearer's abdomen, crotch, and back. Contact.

  According to the diaper 50 having the structure of this example, the urine discharged by the wearer is absorbed by the absorbent body 15 of the front portion 11 from the urine passage opening 59 of the skin contact sheet 58, and the front portion 11 has a front pocket. Since there is 52, leakage at the front end is unlikely to occur. Further, the urine passes from the front part 11 through the gap 2 of the crotch relative part 10, enters the lower side of the separation separator 56, enters between the stool receiving sheet 57 and the absorber 12 of the rear part 12, and enters the absorber 15 of the rear part 12. As a result, the entire amount of the absorber 15 is efficiently used to absorb the liquid, and leakage is less likely to occur. Even if the whole amount of discharged urine and feces is not accommodated in the opening and a part thereof remains on the skin contact, as shown in FIGS. 27 and 28 (b), the skin contact sheet 58 A liquid permeation zone is provided along both side edges of the liquid crystal, and an oblong slit is formed as a return port 55 (return zone) at the front and rear ends. 11 or the absorber 12 of the rear part 12 falls and is absorbed, and does not leak outside. The stool discharged by the wearer falls from the stool passage opening 60 of the skin contact sheet 58 onto the stool receiving sheet 57 on the absorber 15 at the rear portion 12 and is held separately from urine.

  In the above description, the pants-type diaper 50 and the tape-type diaper 40 are particularly exemplified as the absorbent product according to the present invention. However, the scope of the present invention is not limited to this, and the crotch is not limited to this. If it is an absorbent product in a form that is worn over the front and back of a part, even if it is a female target product and a pet target product, the present invention is applicable.

  As described above, according to the absorbent product of the present invention, in the absorbent product that is worn over the front and rear of the crotch portion in the lower body of the wearer, the crotch relative portion has a special form having a void portion when worn. Furthermore, since the urine discharged into the absorbent product can flow from the front part through the gap part to the rear part, it is possible to efficiently use the entire amount of the absorbent body as the absorbent product. It is possible to prevent leakage. Along with the special form of such a crotch relative part, as described in the embodiment, if a side stretch band, a liquid guide unit, a separation separator, a toilet seat, a skin contact sheet, etc. are provided, a gap part of the crotch relative part Combined with the effect of the above, leakage is further prevented, and the efficiency of absorption by the absorber is further promoted.

FIG. 1 is a plan view of an absorbent product used as a specimen in an experiment conducted by the present inventor that has been an opportunity to obtain the problems and means of solving the present invention. FIG. 2 is a front view and a side view of the clip used in the experiment. FIG. 3 is a front view showing the tilt test stand used in the experiment and the implementation status of the experiment using the tilt test stand. FIG. 4 is a diagram showing an aspect of setting the width of the crotch relative portion in the experiment. FIG. 5 is a cross-sectional view showing various deformation patterns of the crotch relative part set in the experiment. FIG. 6 is a cross-sectional view showing a form that can solve the problem of the present invention among various deformation patterns of the crotch relative portion set in the experiment. FIG. 7 is a cross-sectional view of the crotch relative portion of the absorbent product according to the embodiment of the present invention. FIG. 8 is a cross-sectional view of the crotch relative portion of the absorbent product according to the embodiment of the present invention. FIG. 9 is a cross-sectional view of the guide spacer 5 provided at the crotch relative portion of the absorbent product according to the embodiment of the present invention. FIG. 10 is a partial cross-sectional view seen from the front side showing the relationship between the absorbent product according to the embodiment of the present invention and the vicinity of the wearer's crotch part. FIG. 11 is a diagram showing the positional relationship of the absorbent product according to the embodiment of the present invention with respect to the vicinity of the wearer's crotch part. FIG. 12 is a cross-sectional view of the crotch relative portion of the absorbent product of the present example on a cut surface perpendicular to the front-rear direction for the wearer. FIG. 13: is a cross-sectional view in the crotch relative part of this example absorber product in the cut surface orthogonal to the front-back direction for a wearer. FIG. 14: is a cross-sectional view in the crotch relative part of this example absorber product in the cut surface orthogonal to the front-back direction for a wearer, (a) is a figure before wear, (b) is at the time of wear FIG. FIG. 15: is a cross-sectional view in the crotch relative part of this example absorber product in the cut surface orthogonal to the front-back direction for a wearer, (a) is a figure before wear, (b) is at the time of wear FIG. FIG. 16 is a diagram showing a specific structural example including the dimensions of the crotch relative portion of the absorbent product having a deformed guide plate, and in each of the drawings, divided views (a) and (b) are a plan view and a cross-sectional view, respectively. It is. FIG. 17 is a view showing a specific structural example including the dimensions of the crotch relative portion of the absorbent product having a deformed guide plate, and in each of the drawings, divided views (a) and (b) are a plan view and a cross-sectional view, respectively. It is. FIG. 18 is a view showing a specific structural example including the dimensions of the crotch relative portion of the absorbent product having a deformed guide plate, and in each of the drawings, divided views (a) and (b) are a plan view and a cross-sectional view, respectively. It is. FIGS. 19A and 19B are a plan view and a cross-sectional view of the crotch relative portion before the M-type structure is formed on the crotch relative portion. 20 (a) and 20 (b) are a plan view after shaping the M-shaped structure and a cross-sectional view at the crotch relative portion. FIG. 21 is a developed plan view of a structure example of the diaper manufactured in the steps shown in FIGS. 19 and 20. 22A, 22B, and 22C are cross-sectional views taken along _three cutting lines X ₁ -X ₁ ', X ₂ -X ₂ ', and X ₃ -X ₃ 'in FIG. 21, respectively. . FIG. 23 is a developed plan view of a tapeless diaper as an absorbent product according to an embodiment of the present invention. 24A is a cross-sectional view taken along the line X-X ′ of FIG. 23, and FIG. 24B is a vertical cross-sectional view taken along the line Y-Y ′ of FIG. 23. FIG. 25 is a plan view of a developed tapeless diaper as an absorbent product according to an embodiment of the present invention. 26A is a transverse sectional view taken along the line X-X ′ of FIG. 25, and FIG. 26B is a longitudinal sectional view taken along the line Y-Y ′ of FIG. 25. FIG. 27 is a plan view of a developed tapeless diaper as an absorbent product according to an embodiment of the present invention. 28A is a transverse sectional view taken along the line X-X ′ of FIG. 27, and FIG. 28B is a longitudinal sectional view taken along the line Y-Y ′ of FIG. 27. Fig.29 (a) is a top view before the wear of the conventional tapeless type absorber product, The same figure (b) is a top view which shows the deformation | transformation state at the time of the wear.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Side part 2 ... Space | gap part 5 ... Guide spacer 10 ... Crotch relative part 11 ... Front part 12 ... Rear part 15 ... Absorber 16 ... Back sheet as a leak-proof body 17 ... Side part elastic band 19 ... Top sheet 20 ... Outer Gather 21 ... Inner gather 25 ... Deformation guide plate 40 ... Diaper as absorbent product 50 ... Diaper as absorbent product 54 ... Liquid guide unit 56 ... Separation separator 57 ... Stool receiving sheet 58 ... Skin contact sheet

Claims (13)

A sheet-shaped leak preventer and an absorber provided on the inner surface side of the leak preventer, and a front part that faces the abdomen of the wearer when worn, a crotch relative part that faces the wearer's crotch part, and the wearer's crotch part In the absorbent product worn on the lower body of the wearer at the rear facing the back,
A channel-shaped gap that is folded and shaped into a predetermined shape that connects the front part and the rear part by deforming the absorber pressed between the crotch part of the wearer at least during wear and deforming along the outer wall. An absorbent product characterized in that a cylindrical guide spacer having both ends opened is attached to the crotch relative portion so that the portion is constituted by the crotch relative portion. The shape of the absorbent product when the gap portion cuts the crotch relative portion in a surface intersecting with the direction in which the front portion and the rear portion communicate with each other,
Between the left and right side portions that are convex toward the inside of the absorbent product, at least the front side and the rear side of the gap are open toward the inside of the absorbent product. The absorbent product according to claim 1, wherein the absorbent product is formed into a shape. The absorbent product according to claim 2, wherein the crotch relative portion of the absorbent product is folded in advance into the predetermined shape before wearing. The channel-shaped gap portion folded and shaped into a predetermined shape is configured to be continuous over the entire length of the absorber from the front end of the front portion through the crotch relative portion to the rear end of the rear portion. The absorbent product according to claim 3. The absorbent product according to claim 2, wherein the crotch relative part of the absorbent product is in a state where the predetermined shape is unfolded before wearing, and is folded into the predetermined shape when worn. The absorbent product according to any one of claims 1 to 5, wherein at least the absorber in the relative portion of the crotch is a superabsorbent composite sheet in which a solid superabsorbent resin is held on a sheet . 7. A guide unit for guiding a wearer's urine to the gap or the guide spacer of the crotch relative portion is provided between the front portion and the crotch relative portion. Absorbent product as described in. The absorbent product according to claim 7, wherein a front end portion of the guide unit is coupled to the front portion, and a rear end portion thereof is coupled to the crotch relative portion and is opposed to the gap portion. The gap between the left and right opening portions of a pair of liquid leakage prevention side elastic bands provided on both sides of the absorber at the front part, the crotch relative part and the rear part is at least when worn. The absorbent product according to any one of claims 1 to 8, wherein the absorbent product is set to be substantially equal to a lateral width of the absorbent body folded in a step. The pair of side elastic bands in the plan view with the front part on the upper side so that the distance between the pair of side elastic bands becomes narrower toward the front part and wider toward the rear part. The absorbent product according to claim 9, wherein the absorbent product is disposed so as to have an inverted V shape with the front portion as a vertex. The front end portions of the pair of side stretchable bands are arranged so as to cross each other at the front portion, so that the front end portions of the pair of side stretchable bands and the absorber in the front portion are disposed. The absorbent product according to claim 10, wherein a pocket into which the wearer's urine flows is formed. The separation separator which divides | segments the said front part which accommodates a wearer's urine, and the said rear part which accommodates a stool between the said front part and the said rear part is provided. Absorber product described in one. 13. The absorbent product according to claim 12, wherein an opening dedicated to passing urine is provided in the front part and an opening dedicated to passing stool is provided in the rear part.