JP4652387B2 - Absorber product with folded part - Google Patents

Description

  The present invention relates to an absorbent product, and more particularly, to provide a urine pad, a urinary incontinence product, and a diaper.

  Conventionally, as a means for preventing lateral leakage of urine, a method of arranging gathers three-dimensionally, and forming an anti-leakage wall by folding the absorber as in utility model registration No. 3055545, Japanese Patent Laid-Open No. 4-051952, etc. The method is known.

In these absorbent products, a high absorption area can be secured because the main body of the absorbent body is folded to form a leak-proof wall. However, the folded portion of the absorbent body is bulky and cannot be made compact. Further, when a conventional uniform-density absorbent body is folded, the folding line has a high density because the absorbent body is crushed, and there is a problem that it is difficult for body fluid to pass through the crease due to liquid absorption and expansion.
Utility Model Registration No. 3055545 JP-A-4-051952

  An object of the present invention is to provide a urine pad, a urinary incontinence product, and a diaper that have no waste of materials because the entire surface in contact with the skin contributes to absorption of urine and that are compact even when folded.

In the present invention, basically, the absorbent product is a sheet portion consisting only of the absorber main body and the liquid-impermeable back sheet, with the bent structure portion formed of the thinned portion formed in the absorber main body as a fold line . Both side edge portions are folded inward to form a first folded portion, and a bent structure portion in the first folded portion is further folded outward to form a second folded portion, thereby preventing leakage barrier walls at both side edges. And one end edge portion is folded back inward to form a folded portion, and both side edges of the folded portion of the end edge portion are joined to the second folded portion surface of the both side edge portions. A bag-like structure is formed on the one end edge portion, and a liquid-permeable topsheet is arranged to cover the entire sheet surface on the side having the leak-proof wall on both side edges and the bag-like structure on one edge. Invention related to absorbent products That.

(1) In an absorbent product having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body that absorbs and fixes bodily fluid disposed between these two sheets,
The absorbent body contains an absorbent polymer along the length side direction and the width direction, a basis weight of the lower portion of the absorber body, the amount is small portions and the absorber of the absorbent polymer is disposed plural linear thin moiety selected from non part forms a bent structure portion are arranged at intervals, the absorbent products of the formed bent structure portion in the absorber body Both sides along the longitudinal direction of the sheet portion made up of the liquid -impermeable back sheet and the absorbent body are folded inward with one as the first fold line to form a first fold, first folded portion and the second folded portion is folded outwardly is formed a bent structure portion of the first folding line parallel to the absorbent body in the folded portion and the second folding line, the first folded portion and the A leak-proof wall is formed by two folded parts Further, one end edge portion of the sheet portion composed of the liquid-impermeable back sheet and the absorber body is folded inward to form a folded portion, and the folded portion of the one edge portion is A bag-like structure is formed by being joined to the second folded portion of the both side edge portions, and the sheet surface on the side where the leakage preventing wall on the both side edges and the bag-like structure portion on one end edge portion are formed. An absorbent product, characterized in that a liquid-permeable surface sheet is disposed so as to cover it .

(2) The folded portion of the one end edge portion is a folded portion formed by alternately folding the end edge portions inwardly and outwardly along a plurality of folded lines made of the linear bent structure portion. The absorbent product according to item (1), characterized in that it exists .

(3) The absorption according to (1) or (2) , wherein the folded portion of the one end edge portion is a folded portion in which the back sheets facing each other are joined. Body product.

(4) The folded portion of the both side edge portions is a folded portion formed by folding the both side edge portions inward and outward along a plurality of folded lines made of the linear bent structure portion. The absorbent product according to item (3), wherein

(5) A cut is formed in the absorber main body so that the absorber main body is easily curved along the body. (1) Item (1) to (4) Absorber product.

(6) The absorbent product according to any one of items (1) to (5) , wherein stretchable elastic bodies are arranged at both side edges along the longitudinal direction of the absorbent product. .

(7) The absorbent body is composed of a mixture of a water-absorbing polymer and cellulose pulp containing at least 50 weight percent or more of the water-absorbing polymer, and the bent structure portion has a basis weight and density of the other portion. The absorbent product according to any one of (1) to (6), wherein the absorbent product is formed by lowering the portion .

(8) The absorbent body has a sheet-like absorbent body in which microfibril cellulose and a water-absorbing polymer are line-coated on a nonwoven fabric base material, and the bent structure portion is only the nonwoven fabric base material in the sheet-like absorbent body. The absorbent product according to any one of items (1) to (7), wherein

(9) The absorbent product according to any one of (1) to (8), wherein the absorbent body is composed of a water-decomposable sheet that is separably attached .

(Function)
The absorbent product of the present invention forms a leak-proof wall by folding the absorbent body. Absorber body with fold line has a bent structure, and does not become bulky by wrapping, and the leak-proof wall has absorbency, so the area effective for absorbing body fluid is large, resulting in a compact absorbent product is doing.

According to the present invention, since the fold line of the absorbent body is a bent structure, it is easy to fold and does not become bulky, and as a result, it can be made compact. Furthermore, an absorbent product can be obtained in which the density of the folded corners does not become too high, and there is no problem that body fluid does not easily pass through the crease due to liquid absorption and expansion.

The absorbent main body in the absorbent product of the present invention may be one in which wood pulp or non-wood pulp in fluff pulp as a main material is used in combination with a water-absorbing polymer (SAP). A mixture or laminate such as a single or a heat-sealing fiber is used. Moreover, it is good also as a laminated structure where the whole was wrapped with the tissue in order to prevent the water-absorbing polymer from popping out. Moreover, in order to make it thinner and more compact, it is preferable to use a structure comprising 50% by weight or more of a water-absorbing polymer.

Furthermore, the absorbent body suitable for the absorbent product of the present invention may be composed of a sheet-like composite composed of a nonwoven fabric substrate, a water-absorbing polymer, and microfibril cellulose. Specific examples of such a sheet-like composite include a coating liquid in which a water-absorbing polymer and microfibril cellulose are dispersed in a solution of propylene glycol, methanol and water, polyethylene, polypropylene, polyester, and other Examples thereof include a sheet-like absorber mainly composed of a water-absorbing polymer coated on a nonwoven fabric made from a material generally used for nonwoven fabrics such as thermoplastic resin, rayon, and cotton.

Microfibril cellulose is an ultrafine fiber having an average fiber length of 0.1 mm or less obtained by opening wood pulp under a high share. Since the sheet-like absorbent body is obtained by coating a non-woven fabric with a water-absorbing polymer, line coating with an arbitrary width is possible. In the absorbent body of the present invention, a plurality of the sheet-like absorbent bodies may be used in an overlapping manner. Also, the coating pattern can be selected from a combination of a full surface coat and a line coat, or only a line coat.

Further, a water-decomposable material may be used for the absorbent body. Examples of the structure of the absorbent product in the case of water decomposability include, for example, a hydrolytic paper sheet using rayon, pulp, CMC-Ca, etc. as a surface sheet, and fluff pulp, curly fiber and biodegradable as an absorbent core. It is difficult to laminate PVA on tissue as a backsheet using water-absorbing polymer or water-absorbing polymer that is not biodegradable if it is a small amount, or water-absorbing polymer coated on hydrolytic paper. The thing using a water-permeable sheet etc. can be mentioned.

The absorbent body of the present invention has a bent structure portion that can be easily folded back. If it can be easily folded, uniform folding can be performed. Moreover, the thickness change produced by folding does not deviate much from an integral multiple of the absorber thickness (D). In other words, it is possible to prevent the thickness of the n-fold folded from becoming too thick even if folded back as a result of not deviating much from n × D.

The bent structure part that enables easy folding is a line in which the part of the absorbent body that is to be folded is formed as a part having a difference in basis weight and water-absorbing polymer content compared to other parts. It is a shaped part. For example, if the basis weight of the bent structure portion is lower than other portions, it can be easily bent and folded, and the same applies when the water-absorbing polymer content is lower than or not included in other portions. An effect is obtained. Further, when the thickness is uniform, it can be easily folded if the density of the bent structure portion is lower than that of the other portions.
In order to form the bent structure more positively, the absorbent body may be slit or partially cut.

Also, if although the absorber body has a line coated water-absorbing polymer to the nonwoven substrate, the line coated portion has high rigidity, easily bent to a portion that is not line coat flexible. In addition, since the thickness of the line coat portion is thicker than that of the non-line coat portion, even if the non-line coat portion is folded, only a minute change can be made to the folded thickness.
These bent structures are formed so as to be arranged substantially linearly in order to function as folding lines.

Further, even if a plurality of bending structure portions are arranged in the absorbent body, it is not always necessary to use them all as folding lines. An arbitrary number of the bent structure portions can be arranged at an arbitrary position in the absorbent body. As in the present invention, the absorbent body can be easily folded and the crease can be easily maintained by forming the absorbent body in a bent structure.

In the absorbent product according to the present invention, the sheet portion composed of the liquid-impermeable back sheet and the absorbent body is folded inward at least once at the folding line of the absorbent body. Furthermore, the second fold line outside the first fold line can be folded back inside or outside, and if necessary, the plurality of fold lines can be folded back inside or outside. A number of folds can be formed.

The absorbent product may be folded back along the longitudinal direction (with a folding line along the longitudinal direction) or may be folded back along the width direction. Moreover, after folding along the longitudinal direction, it may be folded along the width direction. Conversely, after folding along the width direction, it may be folded along the longitudinal direction.

The structure of the absorbent product of the present invention can be arbitrarily selected in accordance with the gist of the present invention. If a specific example is given as a preferred structure, a liquid-impermeable back sheet, an absorbent body, The sheet portion is formed by folding back inward at the longitudinal first folding line portion of the absorbent body to form a longitudinal first folding portion, and at the longitudinal second folding line portion on the longitudinal first folding portion. It is folded outward to form a second folded portion in the longitudinal direction, and one end in the longitudinal direction of the sheet portion composed of the liquid-impermeable back sheet and the absorbent body is first in the width direction perpendicular to the longitudinal direction of the sheet portion. It is formed into a bag-like structure by being folded inward at one folding line portion and joining the outer edges of the opposing second folding sections in the longitudinal direction. The first folding line in the width direction is preferably formed by a bent structure portion in the width direction and folded along this portion, but may be formed by folding other than the bent structure portion.

As described above, by folding at the bent structure portion, the thickness change of the folded portion can be reduced even when multiple folds are made. On the other hand, when the conventional uniform-density absorbent body is folded, the folds become bulky, and it is difficult to make the absorbent product compact if it is folded several times. Further, in the conventional absorbent body, the density of the fold-back line portion is increased because the absorbent body is crushed, and it is difficult for the body fluid to pass through the fold due to liquid absorption and expansion. The present invention improves the problems in the conventional absorbent body.

  As described above, in the case where the main body of the absorbent body is a fluff pulp made of wood pulp or non-wood pulp in the form of cotton and a water-absorbing polymer is used in combination, in order to obtain a folded line of the bent structure, What is necessary is just to take the method of reducing the amount, or reducing the blending ratio of the water-absorbing polymer to the bent structure portion, or not blending.

When the absorbent body is composed of a sheet-like composite composed of a nonwoven fabric substrate, a water-absorbing polymer and microfibril cellulose, in order to obtain a folded line of the bent structure, the water-absorbing polymer and the micro The fibrils may be line-coated and the non-coated part may be a fold line. Alternatively, line coating may be performed so as to form a portion with a high coating amount and a portion with a low coating amount, and the low coating amount portion may be used as a folding line.

As the liquid-permeable surface sheet, a material generally used for sanitary materials can be employed. For example, it is possible to select a sheet such as a nonwoven fabric made of polyethylene, polypropylene, polyester, or other synthetic fiber made from a thermoplastic resin, a perforated nonwoven fabric, a mesh sheet, or the like.

The liquid-impermeable back sheet disposed on the back surface of the absorbent body of the present invention may be used alone or laminated with a plurality of nonwoven fabrics. As the liquid-impermeable back sheet, a liquid-impermeable polyethylene sheet, preferably a polyethylene sheet provided with micropores, a liquid-impermeable liquid impermeable material such as a sheet stretched by adding a filler to a thermoplastic resin When a sheet is used to impart moisture permeability, it is comfortable with less stuffiness.

A non-woven fabric may be affixed to the outside of the liquid-impermeable back sheet so that a feeling of touch is suitable and a rubbing sound peculiar to the film is not produced. As the non-woven fabric, a non-woven fabric made of a synthetic fiber made from a thermoplastic resin such as polyethylene, polypropylene or polyester can be used.

An anchoring means may be provided outside the liquid-impermeable back sheet used for the back surface of the absorbent body of the present invention so that the absorbent product can be rolled and fastened when discarded. Examples of the mooring means include an adhesive tape, a mechanical fastening tape, a string, and a band.

The absorbent body of the present invention can be designed to be easily bent along the body by making a cut. The direction of the cut may intersect the flow direction of the absorbent product, may be along the flow direction, or may be in both directions. Further, any number of the cuts can be put at any position of the absorbent body.

As the elastic elastic body in the absorbent product of the present invention, thread rubber, flat rubber, and elastic net-like sheet made of natural rubber, synthetic rubber, or the like can be used. The elastic elastic body serves to compensate the standing of the leak-proof wall formed by bending the absorbent product along the body line of the wearer or by folding the absorbent body.

The absorbent product of the present invention means baby diapers, baby and adult urine pads, adult incontinence products and the like.

Hereinafter, the urine pad will be described as an example, and the absorbent product of the present invention will be described in detail with reference to the drawings.

1 is an external perspective view of a urine pad as a reference example for explaining the state of folded portions at both side edges of the urine pad of the present invention, and FIG. 2 is a developed plan view of the urine pad shown in FIG. 3 is a cross-sectional view of the urine pad shown in FIG. 2 cut along the line VV ′, FIG. 4 is a front view of the urine pad shown in FIG. FIG. 5 shows cross-sectional views of the urine pad shown in FIG. 4 cut along the line WW ′. The urine pad of each figure is different from the urine pad of the present invention in that the liquid-permeable topsheet 3 is already integrated with the absorber body 2 and the liquid-impermeable backsheet 6 before being folded, The arrangement state of the bent structure portion 7 on the absorbent body 2 and the arrangement state of the elastic elastic member 5 can also be adopted in the urine pad of the present invention.

As shown in FIGS. 2 and 3, the urine pad 1 of FIG. 1 includes a liquid-permeable top sheet 3, a liquid-impermeable back sheet 6, and an absorbent body 2 disposed between these two sheets. Further, a liquid-impermeable sheet 4 is attached to both side edges of the top sheet 3, and a back sheet 6 portion extending from both side edges of the absorbent body 2 A stretchable elastic body 5 is disposed along the longitudinal direction between the liquid-impermeable sheet 4 and the liquid-impermeable sheet 4.

  The absorbent body 2 is formed by a sheet-like absorbent body 13 in which a coating solution containing microfibril cellulose and SAP is applied to the surface of a base material 15 made of a nonwoven fabric to form an SAP coating portion 14. In this case, the SAP coating portion 14 of the sheet-like absorbent body 13 is formed by line coating, and the SAP coating portion 14 has a non-longitudinal bending structure portion 7 when the sheet-like absorbent body 13 is folded back. Four coating portions 7 are formed in the longitudinal direction.

Further, as shown in FIG. 1, the urine pad 1 folds the side edge portion of the urine pad inward along the longitudinal first folding line 9 to form the longitudinal first folding portion 11, and then the first folding. Folded outward along the longitudinal second folding line 10 on the part 11 to form the longitudinal second folded part 12, and in one end region, the top sheet and the back sheet of the folded parts 11, 12 Are joined.
In this case, as shown in FIG. 2, out of the four longitudinal bending structure portions 7 formed in the SAP coating portion, the inner two serve as the longitudinal first folding lines 9, and the outer two serve as the longitudinal. FIG. 5 is a cross-sectional view showing a state of folding back as the direction second folding line 10 and folding back along these lines.

6 shows a reference example different from FIG. 3 in a cross-sectional view of the urine pad shown in FIG. 2 cut along the line V-V ′.
In FIG. 6, a pulp mat layer 16 in which pulp and SAP are mixed is arranged in the lower layer (back sheet side) of the sheet-like absorbent body 13, and has a structure suitable particularly when a high absorption rate is required. .

FIG. 7 is an external perspective view of a urine pad as a reference example showing an example in which the folded portions 11 and 12 in the longitudinal direction of the urine pad 1 shown in FIG. In this way, the urine pad of the present invention can prevent leakage of urine from the front body side and the back body side by joining the folded portions 11 and 12 in the longitudinal direction at both end regions 17 and 17. It is the same.

8 is an external perspective view showing another form of the urine pad of the present invention, FIG. 9 is a developed plan view of the urine pad shown in FIG. 8, and FIG. 10 is a cross-sectional view of the urine pad shown in FIG. The cross-sectional view of the state cut | disconnected along the line is shown, respectively. 7 to 9 are reference examples and can also be employed in the urine pad of the present invention.

As shown in FIG. 10, the basic configuration of the urine pad 1 is the same as that described above, but the absorbent body 2 is formed by laminating two layers of the sheet-like absorbent body 13. Thus, the absorption amount of a urine pad can be improved by laminating | stacking a some sheet-like absorber and forming an absorber main body.

Further, as shown in FIG. 8, the urine pad 1 folds the side edge portion of the urine pad along the first longitudinal fold line (not shown) and the second longitudinal fold line 10 so as to fold the first longitudinal fold. Part (not shown) and the second folded part 12 in the longitudinal direction, and further, one end edge part is folded inward along the first folded line 18 in the width direction to form the first folded part 19 in the width direction. The bag-like structure part 20 is formed by joining the both side edge parts with the side edge parts of the longitudinal second folded part 12.

In this case, as shown in FIG. 9, the urine pad 1 has two longitudinally bent structure portions 7 formed in the SAP coating portion, the inner two serving as the first longitudinal folding line 9, and the outer side. Are folded back in the longitudinal direction as second longitudinal folding lines 10, and further folded in the widthwise direction as widthwise first folding lines 7 ′ as widthwise first folding lines 18. The opposite side edges 21 and 21 of the folded portion 19 are joined.
In this example, the end portion of the urine pad 1 is folded using the width direction bent structure portion 7 ′ as the width direction first fold line 18, but the width direction first fold line does not necessarily have a bent structure. However, it is preferable to make a bent structure or make a notch for easy folding.

11 is an external perspective view showing another embodiment of FIG. 8 as a reference example of the urine pad of the present invention. FIG. 12 is a cross-sectional view of the urine pad shown in FIG. 11 taken along the line TT ′. It is a cross-sectional view which shows a state.

In this example, the urine pad 1 has a configuration in which the edge of the first folded portion 19 in the width direction of the urine pad shown in FIG. 8 is further folded outward. That is, as shown in FIG. 11, the urine pad 1 folds the side edge of the urine pad along the first longitudinal fold line (not shown) and the second longitudinal fold line 10, thereby Part (not shown) and the longitudinal second folded part 12 are formed, and then one end edge part is folded inward along the widthwise first folded line 18 to form the widthwise first folded part 19. Further, by folding back the edge of the width direction first folded portion 19 outward along the width direction second folded line 22 to form the width direction second folded portion 23 and joining both side edges of the folded portion A bag-like structure portion 20 is formed.
  In the case of this reference example, as shown in FIG. 12, the urine pad 1 has a width direction bending structure portion 7 ′ formed in the absorbent body 2 as the width direction first and second folding lines 18, 22 in the width direction. It is folded back to form first and second folded portions 19 and 23 in the width direction, and the top sheet 3 and the back sheet 6 facing each other are joined.

In actual use, the urine pad of this example is used so that the bag-like structure portion 20 is located at the crotch. Since the urine pad having such a configuration is a surface on which the topsheet 3 comes into contact with the wearer's skin, it is possible to reduce the sticky feeling during wearing. In this example, the stretchable elastic body is not disposed in the longitudinal second folded portion 12, but a stretchable elastic body may be disposed.

13 is an external perspective view showing the form of the urine pad according to the embodiment of the present invention, and FIG. 14 is a cross-sectional view showing a state in which the urine pad shown in FIG. 13 is cut along the line SS ′. It is.

In this embodiment, as shown in FIG. 14, the urine pad 1 is formed by folding only the absorbent body 2 and the back sheet 6 in the same manner as in FIGS. Has been placed. As shown in FIG. 13, since the opening surface of the bag-like structure portion 20 is covered with the surface sheet 3, the urine pad having such a configuration has a bag-like structure portion when a large amount of urine is excreted at one time. Urine is retained in 20 and leakage can be prevented.

15 is an external perspective view showing a state in which the edge of the urine pad shown in FIG. 13 is further folded twice along the width direction, and FIG. 16 is a urine pad shown in FIG. It is a cross-sectional view which shows the state cut | disconnected along the RR 'line | wire of a longitudinal direction. By performing the folding along the width direction alternately four times in total, two bag-like structures 20 can be formed and function as urine pools.

FIG. 17 is an external perspective view of a urine pad of a reference example showing still another form of the urine pad cited as a reference example, and FIG. 18 is along the longitudinal direction in a state in which the urine pad shown in FIG. 17 is developed. It is a cross-sectional view which shows the state cut | disconnected by.

In this example, as shown in FIG. 17, the urine pad 1 has one end edge folded back inward along the first folding line in the width direction, and both side edges 21 joined to form the bag-like structure portion 20. Is formed.
In this case, as shown in FIG. 18, the urine pad 1 is folded back with the width-direction bent structure portion 7 ′ formed on the sheet-like absorbent body 13 constituting the absorbent body 2 as the width-direction first folding line 18.

FIG. 19 is an external perspective view showing an example in which the urine pad of the reference example is used as an absorbent body of a diaper. FIG. 20 is a cross-sectional view of the used diaper shown in FIG. It is a cross-sectional view showing a folded portion of the urine pad in a cut state.

In this example, as shown in FIG. 19, the urine pad 1 has both end regions 17, 17 in the longitudinal direction folded back inwardly at a first folding line 18 in the width direction to form a first folding portion 19 in the width direction, Furthermore, the vicinity of the width direction 1st folding | turning line 18 of the width direction 1st folding | turning part 19 is arrange | positioned in the longitudinal direction center area | region of the diaper main body 25 in the state joined by the joining area | region 24, and is joined with the diaper main body 25.
In this case, as shown in FIG. 20, the urine pad 1 has the end region 17 folded back by using the width-direction bent structure portion 7 ′ formed in the absorbent body 2 as the width-direction first fold line 18. The 1st folding | turning part 19 is formed, and also the surface sheet 3 is joined by the joining area | region 24 of the vicinity of the width direction 1st folding | turning line 18, and it is joined to the diaper main body 25. FIG.

FIG. 21 is an external perspective view showing an example different from FIG. 19 when the urine pad of the reference example is used as a diaper absorber, and FIG. 22 shows the use diaper shown in FIG. It is a cross-sectional view showing a folded portion of the urine pad in a state cut along the line TT ′.

In this example, as shown in FIG. 21, the urine pad 1 has a heel portion 26 formed in the width direction in the crotch region, and a pair of three-dimensional gathers 27 formed in the central region in the longitudinal direction of the diaper body 25. And is joined to the diaper main body 25.
In this case, as shown in FIG. 22, the heel part 26 of the urine pad 1 uses a sheet-like absorbent body 13 as the absorbent body 2, and includes a large number of width-direction bent structure portions 7 ′ formed on the base material 15. One is folded as a width direction first folding line 18, and then one of the folded portions in the width direction bending structure portion 7 ′ is folded as a width direction second folding line 22.

23, 24, 25 and 26 are schematic views showing the folded form of the absorbent body of the present invention. FIG. 23 is a reference example that is folded once, FIG. 24 is a reference example in which the side edge portion is further folded inward by the second folding line, and FIG. 25 is folded twice as in FIG. This is an embodiment in which the side edge portion is folded outward with a line. Further, FIG. 26 shows an embodiment in which the side edge portion is turned back and forth alternately six times. In this way, the absorbent body of the absorbent product can be configured by bending the absorber body a plurality of times with the bent structure portion as a folding line.

28, 29, and 30 are schematic views showing configurations of the bent structure and the non-bent structure of the absorbent body of the present invention. These schematic views can explain the absorbent body formed of a mixed mat of pulp and SAP. That is, the portion having a low basis weight of the absorbent body can be the bent structure portion 7 and the portion having a high basis weight can be the non-bent structure 8. As shown in the figure, a plurality of bent structures and non-bent structures can be formed, and an arbitrary position of the bent structure portion can be used as a folding line. FIG. 27 is a reference example.

32, 33 and 34 are schematic views showing the structures of the bending structure and the non-bending structure of the absorbent body according to the present invention. With these schematic diagrams, an absorbent body formed of a mixed mat of pulp and SAP or a mixed mat having an SAP content of 50% or more can be described. These may be formed with a bent structure part and a non-bent structure part at the SAP concentration. That is, a portion where SAP is not present or has a low concentration can be the bent structure portion 7, and a portion where the SAP concentration is high can be the non-bent structure 8. As shown in the figure, a plurality of bent structures and non-bent structures can be formed, and an arbitrary position of the bent structure portion can be used as a folding line. FIG. 31 is a reference example.

36 and 37 are schematic views showing configurations of the bending structure and the non-bending structure of the absorbent body according to the present invention. With these schematic diagrams, an absorbent body formed of a sheet-like absorbent body coated with SAP can be described. In these cases, similarly to the example shown in FIGS. 31 to 34, the bent structure portion and the non-bent structure portion may be formed with the SAP concentration. That is, a portion where the SAP is not applied can be the bent structure portion 7, and a portion where the SAP is applied can be the non-bent structure 8. Further, a bent structure and a non-bent structure can be formed with a small amount of SAP coating. Similar to the above example, a plurality of bent structures and non-bent structures can be formed, and any position of the bent structure portion can be used as a fold line. FIG. 35 is a reference example.

38 to 50 show the folded form of the absorbent body. FIG. 38 shows an absorbent body of a reference example similar to FIG. 27, and the bent structure portion 7 of FIG. 27 becomes the first folded line 9 indicated by a broken line. FIG. 39 shows a case where the outer edge portion is folded. FIG. 40 shows a pair of the bent structure portion 7 of FIG. 27 as the first folding line 9, and an example in which the outer edge portion is folded inward is shown in FIG. FIG. 42 shows an example in which the second folded portion 12 is formed by folding the bent structure portion 7 to the outside as the second folded line 10.

FIG. 43 shows an absorbent body similar to that shown in FIG. 34, in which the bent structure portion 7 becomes a plurality of folding lines 9 indicated by broken lines, and the outer edge portions are alternately folded back in the order of inner and outer. .

FIG. 45 is the same as FIG. 35, and FIG. 46 shows the bent structure portion 7 as a first fold line 9 indicated by a broken line and the outer edge portion folded inward. 45 and 46 are reference examples.

FIG. 47 is the same as FIG. 36, and the SAP coated surface is in a downward state. No SAP is applied, and the pair of bent structure portions 7 are folded inwardly as first folding lines 9, and the bent structure portion 7 of the first folded portion 11 is folded outwardly as second folding lines 10 to be second. An example in which the folded portion 12 is formed is shown in FIG.

FIG. 49 is the same as FIG. 37, and the SAP coating surface is in a downward state. FIG. 50 shows an example in which the bent structure portion 7 becomes a plurality of folding lines 9 indicated by broken lines, and the outer edge portions are alternately folded in the order of inside and outside.

51, 52, and 53 are reference examples for explaining another form of the absorbent body of the present invention, and a cut portion 28 for bending the absorbent body 2 along the body is provided in the absorbent body 2. FIG. This is an example. FIG. 51 shows an example in which a cut-out portion is formed in the letter C in the side edge portion of the absorbent body. FIG. 52 shows an example in which a cut portion is provided so as to go straight to the side edge portion of the absorbent body. In the example of FIGS. 51 and 52, it is possible to bend into a curve from the front to the back of the wearer. In FIG. 53, a cut portion 28 is provided along the longitudinal direction of the absorbent body. This makes it possible for the absorbent body to bend in the direction around the wearer's torso. The notch portions may be used in combination, thereby having the effect of curving simultaneously in the waist circumference direction and the crotch circumference direction. These incisions may penetrate the absorber body in the thickness direction, or when the absorber body is formed by laminating a plurality of sheet-like absorbers as described above, the upper sheet-like absorption. It is sufficient to provide a cut in the body.

According to the present invention, since the fold line of the absorber body has a bent structure, it is easy to fold and does not become bulky. As a result, a compact absorbent product can be obtained. Furthermore, it is possible to obtain an absorbent product that does not have a problem that the body fluid does not easily pass through the crease due to liquid absorption and expansion without excessively increasing the density of the folded corner.

According to the present invention, it is possible to easily obtain a bent structure portion.

According to the absorbent product of the present invention, since the number of leak-proof walls is further increased, a compact absorbent product having a large absorption area is possible.

According to the present invention, since an absorbent product having a bag-like structure can be produced, urine can be temporarily stored in the bag-like structure portion until the absorber body completely absorbs the urine.

According to the present invention, it is possible to more reliably form the bag-like structure portion in the absorbent product.

According to the present invention, it is possible to easily fold the absorbent body in order to form the bag-like structure.

According to the present invention, since an absorbent product having a bag-like structure can be produced, urine can be temporarily stored in the bag-like structure portion until the absorber body completely absorbs the urine.

According to the present invention, since the entire inside of the bag-like structure portion can absorb urine, further rapid urine absorption can be expected.

According to the present invention, the absorber body can be brought into close contact with the wearer, and the shape retention can be improved.

According to the present invention, the absorber body can be easily bent and can be brought into close contact with the wearer.

According to the present invention, the absorber body can be easily bent and can be brought into close contact with the wearer. Also, it serves to supplement the standing of the leak-proof wall formed by folding the absorbent body .

According to the present invention, the feeling of wearing can be improved.

According to the present invention, a thin absorbent product can be obtained.

According to the present invention, an extremely thin absorbent product can be obtained.

According to the present invention, the design of the absorbent body can be made flexible.

According to the present invention, the disposal method of the absorbent body can be facilitated .

It is a perspective view showing the external appearance of the urine pad of a reference example. It is a top view in the state where the urine pad shown in FIG. 1 was developed. FIG. 3 is a transverse cross-sectional view of the urine pad shown in FIG. 2 cut along the line V-V ′. It is a front view of the upper surface of the state which folded the urine pad shown in FIG. 1 small by the folding | turning part. FIG. 5 is a transverse cross-sectional view of the urine pad shown in FIG. 4 cut along the line W-W ′. FIG. 5 is a cross-sectional view of the urine pad shown in FIG. 2 cut along the line V-V ′, showing an example different from FIG. 3. It is an external appearance perspective view which shows the state which fixed the both ends of the longitudinal direction folding | turning part of the urine pad shown in FIG. It is a perspective view showing the external appearance of the urine pad of another reference example. It is the top view which expand | deployed the urine pad of FIG. FIG. 10 is a transverse cross-sectional view of the urine pad shown in FIG. 9 cut along the line X-X ′. It is a perspective view showing the external appearance of the urine pad of another reference example. FIG. 12 is a transverse cross-sectional view of the urine pad shown in FIG. 11 cut along the line T-T ′. It is a perspective view showing the external appearance of the urine pad of the Example of this invention. It is a cross-sectional view of the state where the urine pad shown in FIG. 13 is cut along the line S-S ′. It is a perspective view showing the external appearance of another urine pad of this invention. FIG. 16 is a transverse cross-sectional view of the urine pad shown in FIG. 15 cut along the line R-R ′. It is a perspective view showing the external appearance of the urine pad of another reference example. FIG. 18 is a transverse sectional view showing a state where the urine pad shown in FIG. 17 is cut along the longitudinal direction in a developed state. It is a perspective view which shows the external appearance at the time of using as a absorber of a diaper using the urine pad of a reference example. It is a cross-sectional view which shows the state which cut | disconnected the diaper shown in FIG. 19 along the U-U 'line. It is a perspective view which shows the external appearance of another example at the time of using as a diaper absorber using the urine pad of a reference example. It is a cross-sectional view which shows the state which cut | disconnected the diaper shown in FIG. 21 along the T-T 'line. It is a cross-sectional view explaining the folding back form of the absorber body of a reference example. It is a cross-sectional view explaining another folding | turning form of the absorber main body of a reference example. It is a cross-sectional view explaining the folding | returning form of the absorber main body in the absorber product of this invention. It is a cross-sectional view explaining another folding | turning form of the absorber main body in the absorber product of this invention. It is a cross-sectional view of an absorber body as a reference example for explaining a bent structure portion and an unbent structure portion of the absorber body. It is a cross-sectional view of the absorber main body explaining the bending structure part and non-bending structure part of another form of the absorber main body in the absorber product of this invention. It is a cross-sectional view of the absorber main body explaining the bending structure part and non-bending structure part of another form of the absorber main body in the absorber product of this invention. It is a cross-sectional view of the absorber main body explaining the bending structure part and non-bending structure part of another form of the absorber main body in the absorber product of this invention. It is a cross-sectional view of an absorber body as a reference example for explaining a bent structure portion and a non-bend structure portion of another form of the absorber body. It is a cross-sectional view of the absorber main body explaining the bending structure part and non-bending structure part of another form of the absorber main body in the absorber product of this invention. It is a cross-sectional view of the absorber main body explaining the bending structure part and non-bending structure part of another form of the absorber main body in the absorber product of this invention. It is a cross-sectional view of the absorber main body explaining the bending structure part and non-bending structure part of another form of the absorber main body in the absorber product of this invention. It is a cross-sectional view of an absorber body as a reference example for explaining a bent structure portion and a non-bend structure portion of another form of the absorber body. It is a cross-sectional view of the absorber main body explaining the bending structure part and non-bending structure part of another form of the absorber main body in the absorber product of this invention. It is a cross-sectional view of the absorber main body explaining the bending structure part and non-bending structure part of another form of the absorber main body in the absorber product of this invention. It is a cross-sectional view explaining the form which turns up the absorber main body as a reference example. It is a cross-sectional view explaining the form which folds FIG. It is a cross-sectional view explaining another form which folds up the absorber main body in the absorber product of this invention. It is a cross-sectional view explaining the form which folds FIG. It is a cross-sectional view explaining the form which folds FIG. It is a cross-sectional view explaining another form which folds up the absorber main body in the absorber product of this invention. It is a cross-sectional view explaining the form which folds FIG. It is a cross-sectional view explaining another form which turns up the absorber main body as a reference example. It is a cross-sectional view explaining the form which folds FIG. It is a cross-sectional view explaining another form which folds up the absorber main body in the absorber product of this invention. It is a cross-sectional view explaining the form which folds FIG. It is a cross-sectional view explaining another form which folds up the absorber main body in the absorber product of this invention. It is a cross-sectional view explaining the form which folds FIG. It is an upper surface front view explaining the notch | incision of the absorber main body as a reference example. It is an upper surface front view explaining what the cut of another form entered into the absorber main body as a reference example. It is an upper surface front view explaining what the cut of another form entered into the absorber main body as a reference example.

1: Urine pad
2: Absorber body
3: Liquid-permeable surface sheet
4: Liquid impervious sheet
5: Elastic elastic body
6: Liquid-impermeable back sheet
7: Longitudinal bending structure part
7 ': Bending structure portion in the width direction
8: Non-bent structure
9: First fold line in the longitudinal direction
10: Longitudinal second folding line
11: First folded portion in the longitudinal direction
12: Longitudinal second folded portion
13: Sheet-shaped absorber
14: SAP coating department
15: Base material
16: Pulp mat layer
17: End region
18: First folding line in the width direction
19: First folded portion in the width direction
20: Bag-like structure
21: Side edge
22: Second fold line in the width direction
23: Width direction second folded portion
24: Joining region
25: Diaper body
26: Buttocks
27: Solid gather
28: Cut section

Claims (9)

In an absorbent product having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body that absorbs and fixes bodily fluid disposed between these two sheets,
The absorbent body contains an absorbent polymer, and along the longitudinal direction and the width direction, a portion with a low basis weight of the absorbent body, a portion with a small amount of absorbent polymer, and an absorbent body are arranged. one more linear thin moiety book forms a bent structure portion are arranged at intervals, the absorbent product is bent structure portion formed on the absorber body selected from portions without As the first folding line, both side edges along the longitudinal direction of the sheet portion made of the liquid-impermeable back sheet and the absorber body are folded inward to form a first folded portion, and the inside of the first folded portion The second folded portion is formed by folding the first folded portion outward by using the bent structure portion parallel to the first folded line as a second folded line, and the first folded portion and the second folded portion provide a leak-proof wall. Is formed Further, one end edge portion of the sheet portion made of the liquid-impermeable back sheet and the absorber body is folded inward to form a folded portion, and the folded portion of the one edge portion is the both side edges. A bag-like structure is formed by being joined to the second folded portion of the part, and covers the sheet surface on the side where the leakage preventing walls on both side edges and the bag-like structure part on one end edge are formed. Absorbent product, characterized in that a permeable surface sheet is arranged .   The folded portion of the one end edge portion is a folded portion formed by alternately folding the end edge portion inwardly and outwardly along a plurality of folded lines made of the linear bent structure portion. The absorbent product according to claim 1, wherein   The absorbent product according to claim 1 or 2, wherein the folded portion of the one end edge portion is a folded portion in which the back sheets facing each other of the folded portion are joined.   The folded portion of the both side edge portions is a folded portion formed by bending the both side edge portions inwardly and outwardly along a plurality of folded lines formed of the linear bent structure portion. The absorbent product according to any one of claims 1 to 3.   The absorbent product according to any one of claims 1 to 4, wherein a cut is formed in the absorbent body so that the absorbent body can be easily bent along the body.   The absorbent product according to any one of claims 1 to 5, wherein a stretchable elastic body is disposed on both side edges along the longitudinal direction of the absorbent product.   The absorbent body is composed of a mixture of a water-absorbing polymer and cellulose pulp containing at least 50 weight or more of the water-absorbing polymer, and the bent structure portion has a lower basis weight and density than the other portions. It forms by carrying out, The absorber product of any one of Claims 1-6 characterized by the above-mentioned.   The absorbent body has a sheet-like absorbent body in which microfibril cellulose and a water-absorbing polymer are line-coated on a nonwoven fabric base material, and the bent structure portion is a portion of the sheet-like absorbent body only of the nonwoven fabric base material. It is, The absorber product of any one of Claims 1-7 characterized by the above-mentioned.   The absorbent product according to any one of claims 1 to 8, wherein the absorbent body is made of a water-decomposable sheet that is separably attached.