JP2008023365A - Absorbent article with folding back section - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a urine pad, a urine incontinence product, and a diaper which make good use of material by the contribution of the whole surface of a part which abuts on the skin to absorb urine and are compact even if they are folded back. <P>SOLUTION: In an absorbent article which has a liquid-permeable surface sheet, a liquid impermeable rear surface sheet, and an absorber body which absorbs and fixes body fluid arranged between these both sheets, the absorber body contains an absorptive polymer. An inflectional structure part is formed by arranging two or more linear closed up parts which consist of one kind or two or more kinds of them selected from a part where the basis weight of the absorber body is low and density is low, a part where the blending quantity of the absorbable polymer is small, a slit line part, and a cutoff line part at spaces along a longitudinal direction and a width direction. In the absorbent article, a turndown section is formed by setting this inflectional structure part as a return line and folding back both lateral borders and one edge part of the absorbent article inward at least once. In the absorbent article, a pouched structure is formed by joining both lateral borders of the turndown section of this one edge part. <P>COPYRIGHT: (C)2008,JPO&INPIT

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 folded at least once on both side edges and one end edge of the absorbent product with the bent structure portion formed in the absorbent body as a folding line. The invention relates to an absorbent product characterized in that a folded portion is formed, and both side edges of the folded portion of the one end edge portion are joined together to have a bag-like structure, and is an invention selected from the following inventions .

(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 the two sheets,
The absorbent body contains an absorptive polymer, and a portion with a low basis weight, a portion with a small amount of water-absorbing polymer, or an absorbent body is not disposed along the longitudinal direction or the longitudinal direction and the width direction. A plurality of linear thinned portions consisting of portions are arranged at intervals to form a bent structure portion, and one of the bent structure portions in the longitudinal direction of the absorbent body as a first folding line, Both side edges of the entire absorbent product are folded inward to form a first folded portion, and the bent structure portion of the absorbent body parallel to the first folded line in the first folded portion is used as the second folded line. An absorbent product, wherein the first folded portion of the absorbent product is folded outward to form a second folded portion.

(2) The first folded portion of the absorbent body has a plurality of bent structure portions that are folded lines parallel to the first folded line, and along the plurality of bent structure portions of the absorbent body. The absorbent product according to (1), wherein the entire absorbent product is further folded outward or inward, and a plurality of folded portions are formed in the first folded portion.

(3) The absorbent product is a folded portion in which an end portion of the absorbent product is folded inward with a bent structure portion formed of the thinned portion formed along the width direction of the absorbent body as a folding line. The absorbent article according to (1) or (2), wherein a bag-like structure is formed by joining both side edges of the folded portion.

(4) The folded portion formed by folding the end edge portion inward is folded further outward along the bent structure portion of the absorbent body arranged in the folded portion, and the folded portion is opposed to the folded portion. The absorbent product according to item (3), wherein the liquid-impermeable back sheets are bonded to each other.

(5) On the liquid-permeable surface sheet on one end side in the longitudinal direction of the absorbent product, a liquid-impermeable sheet is bonded so as to cover both side edge portions and the one end edge portion of the liquid-permeable surface sheet. The absorbent product according to any one of items (1) to (4), wherein:

(6) Items (1) to (5), wherein the facing surface sheets in the first folded portion in the longitudinal direction are joined to each other at the longitudinal center of both side edges of the absorbent product. The absorbent product according to any one of the above.

(7) Paragraphs (1) to (1), wherein the facing sheets on the inner side of the first folded portion in the longitudinal direction are joined to each other at both side edges on one end side in the longitudinal direction of the absorbent product. The absorbent product according to any one of items 6).

(8) A cut is formed in the absorbent body so that the absorbent body can be easily bent along the body. (1) Item (1) to (7) Absorber product.

(9) The absorbent product according to any one of (1) to (8), wherein a stretchable elastic body is disposed on both side edges along the longitudinal direction of the absorbent product. .

(10) Any one of the items (1) to (9), wherein a liquid-impermeable sheet is disposed on a liquid-permeable surface sheet on the absorbent body at both side edges of the absorbent product. Absorbent product according to item.

(11) The absorbent body is composed of a mixture of a water-absorbing polymer and cellulose pulp containing at least 50% by weight or more of a water-absorbing polymer, and the bent structure portion has a basis weight of the portion as another portion. The absorbent product according to any one of (1) to (10), wherein the absorbent product is formed by lowering.

(12) 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 (11), wherein

(13) The absorbent product according to any one of (1) to (12), wherein the absorbent body is composed of a water-decomposable sheet that is separably attached.

(14) Out of the absorbent products described in the items (1) to (13), two absorbent products having the same structure are faced to each other, and both side edges and one end edges are joined. An absorbent product having a formed bag-like structure.

(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. Further, the density of the folded corner portion does not become too high, and the problem that the body fluid does not easily pass through the crease due to liquid absorption and expansion can provide the inner absorbent product.

(Function)
The absorbent product of the present invention forms a leak-proof wall by folding the absorbent body. Absorber body with fold line is bent structure, and it does not become bulky by wrapping, and the leak-proof wall is absorbent, so there is not much effective area in body fluid Kyushu, resulting in a compact absorbent product It is composed.

  The absorbent main body in the absorbent product of the present invention may be a combination of water pulp (SAP) in combination with fluff pulp made of wood pulp or non-wood pulp made into cotton, and other absorbent paper. A single material or a mixture or laminate of heat-fusible fibers 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. Further, the thickness change caused 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.

In the case where the absorbent body is a non-woven base material line-coated with a water-absorbing polymer, the line-coated portion has high rigidity, and the non-line-coated portion is flexible and is easily bent. 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 of the present invention, the absorbent product is folded at least once inside 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, the absorbent product is the first in the longitudinal direction of the absorbent body. The first folded portion is folded inward at the folded line portion to form a first folded portion in the longitudinal direction, and folded back outward at the second folded line portion in the longitudinal direction on the first folded portion in the longitudinal direction. Formed, one end edge in the longitudinal direction of the absorbent product is folded inward at the first folding line portion in the width direction perpendicular to the longitudinal direction of the absorbent product, and the outer edges of the opposing second folded portion in the longitudinal direction are joined. Thus, it is formed into a bag-like structure. 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.

  In addition, the absorbent product is folded 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. Folded outward to form a second folded portion in the longitudinal direction, and a liquid-impermeable sheet is disposed in one end edge region on the absorbent product, and the liquid-impermeable sheet is disposed on both side edges of the absorbent product. And you may join at an edge. Also in this case, an absorbent product having a bag-like structure at one end can be obtained.

  For further example, the absorbent product is folded inward at a longitudinal first folding line portion of the absorbent body to form a longitudinal first folded portion, and a longitudinal first portion on the longitudinal first folded portion is formed. Two absorbent products A and B that are folded outward at the two folding line portions to form the second folded portion in the longitudinal direction are arranged so that both side edges and one end edge of each of the absorbent sheet products A and B face each other. It can also be set as the absorber product with the joined bag-like structure. At this time, the length of A and B may be the same, and one may be shorter than the other.

  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 crease 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.

  In the absorbent product of the present invention, the face sheets facing each other inside the first folded portion in the longitudinal direction may be partially joined. When the first folded portion in the longitudinal direction is partially joined, the absorbent body can be brought into close contact with the wearer, and the shape retention can be improved. For example, when designing a urine pad for women, an absorbent product suitable for the wearer's body can be obtained by joining the longitudinal first inner portion sheet in the longitudinal direction of the absorbent product. A male absorbent product can also be obtained as described above. For example, in the case of a urine pad used in combination with an underpants type diaper, an absorbent product mainly intended for absorption in the front body is suitable. In that case, when the surface sheet of the first folded portion in the longitudinal direction is joined at one end edge in the longitudinal direction of the absorbent product, the wearing feeling when the absorbent product is arranged so that the portion is located in the crotch, The fit and shape retention before and after absorption are good, which is preferable. The joining method may be a method commonly used for joining nonwoven fabrics, and examples thereof include adhesion by hot melt, heat sealing, and fusion by ultrasonic waves.

  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.

  In the absorbent product of the present invention, a liquid-impermeable sheet may be disposed on both side edges of the surface sheet. Since the absorbent product of the present invention has a structure in which the final folded portion is easy to touch the wearer, if the surface sheet of the part touches the wearer directly, the feeling of wearing after urination is worsened. It is preferable to use it. At the same time, it also serves to prevent bleeding from the edge of the absorbent product. The same material as the liquid-impermeable back sheet used for the back side of the absorber body can be used as the material, but synthetic fiber made from a thermoplastic resin such as polyethylene, polypropylene or polyester is used as a raw material. For example, a nonwoven fabric sandwiched by a spunbond method / melt blow method / spunbond method generally called SMS, or SMMS is suitable.

  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 is taken as an example to describe the absorbent product of the present invention in detail with reference to the drawings, but the present invention is not limited to these examples.

  1 is an external perspective view of the urine pad of the present invention, FIG. 2 is a developed plan view of the urine pad shown in FIG. 1, and FIG. 3 is a cross-sectional view of the urine pad shown in FIG. 4 is a cross-sectional view of the cut state, FIG. 4 is a front view of the urine pad shown in FIG. 1 in a folded state, and FIG. 5 is a front view of the urine pad shown in FIG. The cross-sectional views of the cut state are shown respectively.

  As shown in FIG. 3, the urine pad 1 of the present invention is basically composed of a liquid-permeable top sheet 3, a liquid-impermeable back sheet 6, and an absorbent body 2 arranged between these two sheets. Further, a liquid-impermeable sheet 4 is attached to both side edges of the top sheet 3, and the back sheet 6 portion extending from both side edges of the absorbent body 2 is not liquid-impregnated. A stretchable elastic body 5 is disposed between the permeable sheets 4 along the longitudinal direction.

  In this embodiment, 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. ing. 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.

In this embodiment, 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. Then, the second folded portion 12 is formed by folding outward along the second folded line 10 in the longitudinal direction on the first folded portion 11, and the top sheet of the folded portions 11, 12 in one end region. The back sheets and the back sheets are joined together.
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.

FIG. 6 shows an example different from FIG. 3 of the cross-sectional view of the urine pad shown in FIG. 2 cut along the line VV ′.
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 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 leakage from the front body side and the back body side can be prevented by joining the longitudinal folded portions 11 and 12 at the both end regions 17 and 17.

  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.

  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 the present embodiment, 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 the urine pad of the present invention, and FIG. 12 is a cross-sectional view showing a state in which the urine pad shown in FIG. 11 is cut along the line TT ′. is there.

In this embodiment, the urine pad 1 has a configuration in which the end edge portion of the first fold 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 this case, as shown in FIG. 12, the urine pad 1 is folded back in the width direction with the width direction bent structure portion 7 ′ formed in the absorbent body 2 as the width direction first and second fold lines 18 and 22. The width direction 1st and 2nd folding | turning parts 19 and 23 are formed, and the surface sheets 3 and back sheet 6 which the folding | turning part opposes are joined.

  In actual use, the urine pad of this embodiment is used so that the bag-like structure portion 20 is located in 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 the present embodiment, 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 still another embodiment of the urine pad 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 portion of the urine pad shown in FIG. 13 is further folded twice in the width direction, and FIG. 16 is a longitudinal view of the urine pad shown in FIG. It is a cross-sectional view which shows the state cut | disconnected along the RR 'line of direction. By performing the folding in the width direction alternately four times in total, two bag-like structures 20 can be formed and function as a urine pool.

  FIG. 17 is an external perspective view showing still another embodiment of the urine pad of the present invention, and FIG. 18 is a cross-sectional view showing a state in which the urine pad shown in FIG. FIG.

In the present embodiment, 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 fold line 18.

  FIG. 19 is an external perspective view showing an example of using the urine pad of the present invention as an absorbent body of a diaper, and FIG. 20 shows the used diaper shown in FIG. 19 along the line U-U ′. It is a cross-sectional view showing a folded portion of the urine pad in a cut state.

In the present embodiment, as shown in FIG. 19, the urine pad 1 has both end regions 17, 17 in the longitudinal direction folded inward at the first folding line 18 in the width direction to form the first folded portion 19 in the width direction. Further, in the state where the vicinity of the width direction first folding line 18 of the width direction first folding portion 19 is joined at the joining region 24, it is arranged in the central region in the longitudinal direction of the diaper body 25 and joined to the diaper 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 present invention is used as a diaper absorber, and FIG. 22 shows the used 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 the present embodiment, 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. It arrange | positions between and is joined with the diaper main body 25. FIG.
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 shows an example in which it is folded once, FIG. 24 shows an example in which the side edge portion is further folded inward with a second folding line, and FIG. 25 is folded twice as in FIG. Side edges are folded outward. Further, FIG. 26 shows an example in which the side edge portion is folded back six times inside and outside. 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.

  27, 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.

  31, 32, 33 and 34 are schematic views showing the structures of the bending structure and the non-bending structure of the absorbent body of 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.

  35, 36, and 37 are schematic views showing configurations of the bending structure and the non-bending structure of the absorbent body of 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.

  38 to 50 show the folded form of the absorbent body. FIG. 38 shows an absorbent body similar to that shown in FIG. 27, and the bent structure portion 7 of FIG. 27 is a first fold 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.

  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 illustrate another embodiment of the absorbent body of the present invention, and an example in which a cut portion 28 is provided in the absorbent body 2 for bending the absorbent body 2 along the body. It is. 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 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 a urine pad. 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 another urine pad of this invention. 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 another urine pad of this invention. 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 another urine pad 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 another urine pad of this invention. 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 diaper absorber using a urine pad. 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 a urine pad. It is a cross-sectional view which shows the state which cut | disconnected the diaper shown in FIG. 21 along T-T 'line. It is a cross-sectional view explaining the folding | turning form of an absorber main body. It is a cross-sectional view explaining another folding form of an absorber main body. It is a cross-sectional view explaining another folding form of an absorber main body. It is a cross-sectional view explaining another folding form of an absorber main body. It is a cross-sectional view of the absorber main body explaining the bending structure part and non-bending structure part of an absorber main 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 an absorber main 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 an absorber main 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 an absorber main 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 an absorber main 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 an absorber main 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 an absorber main 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 an absorber main 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 an absorber main 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 an absorber main 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 an absorber main body. It is a cross-sectional view explaining the form which folds an absorber main body. It is a cross-sectional view explaining the form which folds FIG. It is a cross-sectional view explaining another form which folds an absorber main body. 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 an absorber main body. It is a cross-sectional view explaining the form which folds FIG. It is a cross-sectional view explaining another form which folds an absorber main body. It is a cross-sectional view explaining the form which folds FIG. It is a cross-sectional view explaining another form which folds an absorber main body. It is a cross-sectional view explaining the form which folds FIG. It is a cross-sectional view explaining another form which folds an absorber main body. It is a cross-sectional view explaining the form which folds FIG. It is an upper surface front view explaining the notch | incision of an absorber main body. It is an upper surface front view explaining what the cut | incision of another form entered into the absorber main body. It is an upper surface front view explaining what the cut | incision of another form entered into the absorber main body.

Explanation of symbols

1: Urine pad 2: Absorbent body 3: Liquid-permeable top sheet 4: Liquid-impermeable sheet 5: Stretchable elastic body 6: Liquid-impermeable back sheet 7: Longitudinal bending structure portion 7 ': Width-direction bending structure Part 8: Non-bent structure part 9: Longitudinal direction first folding line 10: Longitudinal direction second folding line 11: Longitudinal direction first folding part 12: Longitudinal direction second folding part 13: Sheet-like absorbent body 14: SAP coating Part 15: Base material 16: Pulp mat layer 17: End region 18: Width direction first folding line 19: Width direction first folding part 20: Bag-like structure part 21: Side edge part 22: Width direction second folding line 23: Width direction second folded part 24: Joining region 25: Diaper body 26: Gutter part 27: Solid gather 28: Cut part

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 the absorbent polymer, a slit line portion and a cut line portion A plurality of linear thinned portions made of one or more selected from the above are arranged at intervals to form a bent structure portion, and the absorbent product is formed on the absorbent body. Using the bent structure portion as a fold line, both side edges and one end edge of the absorbent product are folded at least once inwardly to form a folded portion, and both side edges of the folded portion of the one end edge are joined. Absorbent product characterized in that a bag-like structure is formed.   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 made 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% by weight of the water-absorbing polymer, and the bent structure portion has a lower basis weight and density than the other portions. The absorbent product according to any one of claims 1 to 6, wherein the absorbent product is formed.   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. The absorbent product according to any one of claims 1 to 7, wherein the absorbent product is provided. 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.