JPH11192256A - Absorbent product and its production method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent product that can be formed compact and improve using convenience by reducing or eliminating the work to remove the release paper in use and its production method. SOLUTION: In this absorbent product 10 of a long shape in one direction provided with a first liquid impermeable sheet material, a second liquid permeable sheet material and an absorbent member placed between the first sheet material and the second sheet material, the first and the second adhesive parts 31 and 32 are provided near the ends of longitudinal direction of this absorbent product and on the face side of the first sheet material, and are positioned so as to be overlapped on each other by folding the end parts 33 and 34 to the inner side, and bending this product about in the middle, and furthermore a release member to be peeled off when used is provided between the adhesive parts 31 and 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorbent product for absorbing excretions such as urine and the like, which is arranged inside the shime when the shime is worn, and to an improvement in a method for producing the same. .

[0002]

2. Description of the Related Art Among such absorbent products, as described above, an absorbent product which is arranged inside when a sash is worn is called, for example, an absorbent pad. This absorption pad can assist the function of the shimeme by absorbing and retaining the excreted water such as urine, and can save the number of shimeme replacements. For example, as shown in FIG. Is configured.

[0003] In the drawing, an absorbent pad 1 has a main body that is long in one direction, and has a back sheet 2 disposed on the front side thereof and a top sheet 3 disposed inside thereof. An absorber (not shown) for absorbing and holding the liquid is accommodated between the sheet 2 and the top sheet 3.

[0004] The top sheet 3 is a liquid-permeable sheet material, which allows liquid excretions such as urine to permeate into an internal absorber. The back sheet 2 is formed of a liquid-impermeable sheet material so that liquid such as urine held by the absorber does not permeate to the outside. Then, an adhesive portion 4 is formed on the surface side of the back sheet 2 of the absorbent pad 1,
A release paper 9 is attached to the bonding portion 4 in advance.

Therefore, when the absorbent pad 1 is used, as shown in FIG. 24, the absorbent pad 1 is disposed inside the staking 5 so that the absorbing pad 1 is located between the user's body and the stiffening 5. Is worn with this interposed. At this time, by peeling off the release paper 9 of FIG. 23, the bonding portion 4 is exposed, and the bonding portion 4 is stuck on the inner surface of the staking 5 so that the absorbent pad 1 is fixed to the inside of the staking 5. ing.

[0006] An absorption pad 6 as shown in FIG. 25 is also known. Adhesive portions 7 and 8 are formed on the absorbent pad 6 from both ends on the front surface side of the back sheet 2, and release papers 7a and 8a are attached to the respective adhesive portions.
When using such an absorbent pad 6, release paper 7a
Then, the absorbent pad 6 is rounded so that the back sheet 2 is on the outside as shown in FIG. At this time, the shape is rounded so that the right side in FIG. 26 is closed, and is formed into a conical shape. One of the bonding portions 7 is bonded to the inside of the other end of the absorbent pad 6 so that the shape shown in the drawing is maintained. Fix it. Next, the release paper 8a is peeled off while the male genitals are inserted inside the exposed top sheet 3, and the rivet 5 is worn. Thus, the absorbent pad 6 is fixed to the rivet 5 by the other adhesive portion 8 of the absorbent pad 6.

Further, as shown in FIG. 25, the absorbent pad 6 is folded at its fold lines L1 and L2 at its ends, and is packaged in three parts. In this regard, the absorbent pad 1 is also processed in the same manner, thereby making the whole compact and suitable for carrying.

[0008]

By the way, such an absorbent pad is provided with the above-mentioned adhesive portion in order to dispose the absorbent pad inside the rivet and fix it, and to prevent the displacement. I have. And, for example, the absorbent pad 1 of FIG. 1 includes one adhesive portion 4,
It is sold with the release paper 3 attached.

For this reason, when the user uses this, it is necessary to peel off the release paper 3, and when the user peels it, it must be discarded. It is very inconvenient if there is no place or space.

In this respect, in the case of the absorbent pad 6, since two bonding portions are provided, it is necessary to separate two release papers 7a and 8a when using the absorbent pad 6, which is complicated. In addition, the number of release papers that must be discarded increases, which is further inconvenient.

Each of the absorbent pads 1 and 6 is folded in three as described above so as to be suitable for carrying. However, the absorbent pads 1 and 6 are still large. , And had a prominent shape.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems at the same time, and can be made more compact than before, and the operation of peeling off the release paper during use is reduced or eliminated, and the usability is improved. It is an object of the present invention to provide an absorbent product and a method for producing the same.

[0013]

According to the first aspect of the present invention, there is provided a liquid-impermeable first sheet material and a liquid-permeable first sheet material combined with the first sheet material. An absorbent product having a second sheet material and an absorbent member disposed between the first sheet material and the second sheet material, the absorbent product having a shape elongated in one direction; In the vicinity of each end in the direction, provided with first and second adhesive portions respectively provided on the surface side of the first sheet material, each end of the product is folded back inward, and By further bending around the center,
This is achieved by an absorbent product in which the second adhesive portion is positioned so as to overlap with each other, and a peeling member that is peeled off at the time of use is arranged between the respective adhesive portions.

According to the first aspect of the present invention, when the user wears the absorbent product, the second sheet material penetrates a liquid component such as urine of the user into the inside, and the liquid component is It is absorbed by the absorbing member and is not transmitted to the outside by the function of the first sheet material. In addition, as a form of the product to be packed before use, first and second adhesive portions are provided near each end on the surface side of the first sheet material. Fold each part inward and further fold around the center of this product,
The absorbent product is in a compact, four-fold form.

Moreover, in this state, since the first and second adhesive portions are positioned so as to overlap each other, these adhesive portions face each other. For this reason, for example, if one end of the absorbent product is expanded during use by interposing, for example, a release paper as a single release member between these adhesions, one of the adhesion parts is exposed. I do. Then, when the peeling member is peeled off, another adhesive portion is exposed. Therefore, in providing two adhesive portions, one peeling member may be used. Therefore, the user only has to peel off the peeling member and discard it. In addition, since the whole is formed by folding in four, it becomes compact by that much, and it becomes easy to carry.

According to the second aspect of the present invention, in the configuration of the first aspect, two peeling members are disposed between the respective bonding portions, and further, the two peeling members are mutually connected. It may be configured to be adhered.

According to the second aspect of the present invention, one peeling member is prepared corresponding to each of the bonding portions, and further, the peeling members are bonded to each other. For this reason, when each end of the absorbent product is expanded at the time of use, one peeling member is adhered to the other peeling member and peels off, so that one adhesive portion is exposed at one end of the product. Then, peeling off the two peeling members exposes another bonded part, so in providing two bonded parts,
The operation of peeling off the peeling member can be performed once.

According to a third aspect of the present invention, in the configuration of the first aspect, the release member is a single release member, and an adhesive provided in advance on the release member is superimposed on the release member. By moving to one end of each of the end portions, one of the first and second adhesive portions is formed.

According to the third aspect of the present invention, with respect to the adhesive parts provided near the respective ends of the absorbent product, one end is provided with an adhesive part in advance, while the other end is provided with an adhesive part. Not provided. In this case, when the ends are overlapped as described above, the adhesive moves from the peeling member to the opposing surface of the other end from the peeling member interposed between the ends. A bonding portion is formed on the other end side. As a result, the absorbent product can be provided with two adhesive portions, and when folded, only one peeling member intervenes between them.

According to the fourth aspect of the present invention, there is provided a liquid-impermeable first sheet material, and a liquid-permeable second sheet material combined with the first sheet material. And an absorbent member disposed between the first sheet material and the second sheet material, the absorbent product having a shape that is long in one direction, and one end in the longitudinal direction of the absorbent product. The product is provided with an adhesive portion provided on the surface of the first sheet material, and the ends of the product are folded back inward, and the vicinity of the center of the product is further bent to form the end portions. They are positioned so that they are overlapped with the adhesive part inside, and a single peeling member to be adhered to the adhesive part is disposed between the ends, and the other end of the peeling member In the place facing
This is achieved by an absorbent product to which an adhesive having a stronger adhesive force than the adhesive is applied.

Claim 4 is adopted when only one bonding portion is required. According to the configuration of claim 4, in a state where the user wears the absorbent product, the second sheet material permeates a liquid component such as urine of the user inside, and the liquid component absorbs the absorbing member. And is not transmitted to the outside by the function of the first sheet material. Further, as a form of the product to be packed before use, an adhesive portion is provided on one surface of the first sheet material near one end thereof. For this reason, when each end of the product is folded inward with the adhesive portion inside, and the center portion of the product is further bent, the absorbent product has a four-fold compact form. .

Further, in this state, the bonding portion inside is covered with a single release member, for example, a release paper. At the part facing the other end of the release paper, an adhesive having a stronger adhesive force than the adhesive part is applied, so when each end of the absorbent product is expanded at the time of use, The release paper is adhered to the other end side and is peeled off from the adhesive portion covered. As a result, one bonding portion is exposed, and the release paper remains bonded to the other end. Therefore, when only one adhesive portion is required, the operation of peeling off the release paper is not necessary, and since the release paper is bonded to the other end, the absorbent product is used without being discarded. can do.

According to a fifth aspect of the present invention, there is provided a backsheet supplying step of continuously attaching a release member to a liquid-impermeable backsheet and supplying the same. A step of producing a surface material from a sheet member and a top sheet that constitute a flap portion, and a step of producing a surface material from the back sheet, The absorbing member and the surface material are laminated so that each longitudinal end of the product material is folded inward, and the vicinity of the center of the product is further bent so that the end portions are overlapped with each other. And a step of folding the product into four parts.

According to a sixth aspect of the present invention, in the configuration of the fifth aspect, the back sheet, the absorbing member, and the surface material are provided at a stage subsequent to the back sheet supply step and the surface material manufacturing step. And a step of turning over the product material in which the layers are stacked.

According to a seventh aspect of the present invention, in the configuration of the fifth or sixth aspect, one end, which is the front end side of the product material, is directed along the feed line of the product material toward the back sheet side. A first folding process for turning the product material back, a second folding process for turning the product material upside down while turning the other end, which is the rear side of the product material, such that the rear end faces the backsheet side, and the product material turned over. And a third folding process in which the vicinity of both ends of the line in the traveling direction of the line is supported and the vicinity of the center of the product material is pressed from above to further fold the product material in two.

[0026]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. The embodiment described below is a preferred specific example of the present invention, and thus various technically preferable limitations are added. However, the scope of the present invention particularly limits the present invention in the following description. The embodiment is not limited to these embodiments unless otherwise stated.

FIG. 1 is a top view showing an absorbent pad as an example of an absorbent product according to an embodiment of the present invention with its inside facing upward, and FIG. 2 is a schematic perspective view thereof. FIG.
FIG. 3A is a cross-sectional view taken along line AA of FIG. 1, and FIG. 3B is a cross-sectional view taken along line BB of FIG.

In FIG. 1 and FIG.
Has a first sheet material 11 on the outside, as shown in FIG. 3, an absorbing member 16 is arranged on the inside, and a second sheet material 12 is further provided on the inside. Although the first sheet material 11 is impermeable to liquids, it is preferable that a material having a certain degree of flexibility can be selected by being able to prevent steam from permeating water vapor and to provide the inside of the absorbent pad 10 with some flexibility. Things (filth) are not leaked to the outside. For this reason, as the material of the first sheet material 11, a thin plastic film, specifically, a polyethylene film, polyethylene laminated paper, or the like is selected.

Since the second sheet material 12 directly touches the skin of the user, a material suitable for the second sheet material 12 is selected in consideration of a good touch without damaging the skin more than necessary.
Furthermore, the second sheet material 12 is appropriately selected from various natural fibers, synthetic fibers, or a combination thereof as fibers of a material suitable for allowing the liquid to pass therethrough, and particularly for allowing the liquid component to quickly permeate. You. As the synthetic fiber, for example, a non-woven fabric formed from polyester or polyolefin-based fiber so as to improve liquid permeability is preferable.

The first sheet material 11 and the second sheet material 12 are formed in a size and shape suitable for use as an absorbent pad, for example, as shown in FIG. Parts are fixed to each other. This fixing method, for example, at the edge,
It is fixed appropriately by sewing or the like. Here, the second sheet material 12 may be larger than the absorber 16 and have a shape capable of sufficiently covering the upper surface thereof. In contrast, FIG.
As shown in (1), the first sheet material 11 is larger than the second sheet material 12 at least in the width direction and extends outward.

In FIG. 1, the absorbent pad 10 has a substantially rectangular shape as a whole, and has opposing edges 17 and 18 constituting each long side. The first flap portion 13 is provided in a pair along the edges 17 and 18 as described later.

As shown in FIG. 3, the first sheet material 1
An absorbing member 16 is arranged between the first and second sheet members 12. This absorber 16 is represented by a dashed line in FIG. The absorbing member 16 is used for the second sheet material 12.
It plays a role of absorbing and retaining the liquid component that has permeated and permeated. Here, the absorbing member 16 is the first absorber 2
Tissue 2 covering the periphery of the first absorber 21 and the first absorber 21
Tissue 24 disposed on third and second absorbers 22
And

The first and second absorbers 21 and 22 are:
A material having excellent liquid absorbability and having a function of holding it as it is, or semi-solidified or solidified, is used. As such a material, for example, a water-absorbing polymer is suitable, such as a polyacrylate copolymer, a starch-acrylonitrile graft copolymer hydrolyzate, a starch-acrylic acid graft copolymer, and polyvinyl. Examples thereof include alcohol-acrylate copolymers and modified carboxymethylcellulose. Further, the absorbing member 16 can contain a bactericide, thereby preventing bacteria from producing ammonia from urea in urine.
Therefore, it is possible to effectively prevent the occurrence of rough skin. Examples of such a bactericide include benzalkonium chloride and chlorhexidine gluconate.
The absorbers 21 and 22 further, for these materials,
It is formed by mixing pulp.

In FIG. 3, the first sheet 1
The strip-shaped third sheet members 25 and 26 shown in FIG. 1 are arranged from the inside (from above in FIG. 3) so as to overlap with the respective extending portions 11a and 11a extending to the side of the first. The third sheet members 25 and 26 are made of, for example, a waterproof material having a certain rigidity and flexibility, such as a polyester-based or polyolefin-based nonwoven fabric. As shown in FIG. 3, the third sheet members 25 and 26 have inner regions 25a and 26a and outer regions 2a and 26a, respectively.
5b and 26b. Third sheet material 25 and 2
The respective outer regions 25a, 26a of 6 are respectively overlapped with the respective extending portions 11a, 11a of the first sheet material 11, and the respective overlapping portions constitute the first flaps 13, 13, respectively.
Each inner area 25b, 26 of the third sheet material 25, 26
b is folded back at each tip side to form a tunnel-like portion, through which, for example, a rubber-like elastic member 27 extending in the longitudinal direction of FIG. 1 is passed, thereby forming second flaps 28, 28.
It has been.

The distal ends of the second flaps 28, 28
As shown in FIG. 3A, the absorbent pad 10 of FIG. 1 is fixed to the surface of the second sheet material 12 at the longitudinal end, and as shown in FIG. In the vicinity of the center of the first absorbent pad 10, it is not fixed. Thereby, as shown in FIG. 3B, in this region,
The distal end side of the second flap portion 28 is urged as a free end so as to rise by the tension of the elastic member 27. Thereby, the second flap portion 28 is configured such that the free end side faces the wearer's skin according to the state of the user wearing the absorbent pad 10, and the liquid such as urine flows through the second flap portion 28. Is sealed inside the flap portion 28 of FIG.

On the other hand, the first flap portion 13 is
Outer regions 25a, 26a of the sheet materials 25 and 26
The first sheet material 11 is overlapped with each of the extending portions 11a, 11a, and the leading end side is fixed, and the elastic member 27 is passed through the inside of the leading end to form a gather. . Thereby, each flap portion 13 plays a role of sealing excrement such as urine around the legs of the wearer's crotch according to the state of the wear of the absorbent pad 10 by the user.

Further, as shown in FIG. 4, the absorbent pad 10 is located near each end in the longitudinal direction and has the first
The first and second bonding portions 3 are provided on the surface side of the sheet material 11 of FIG.
1 and 32 are provided. That is, in FIG. 4, when a virtual center line L3 is defined in the longitudinal direction of the absorbent pad 10, each part divided by the center line L3 is divided into four parts by virtual bisecting lines L4 and L5. Divide into equal areas. In this case, the bonding portions 31 and 32 are provided in regions 33 and 34 respectively corresponding to the ends in the longitudinal direction.

When each of the end regions 33 and 34 is bent inward in the direction of the arrow in FIG. 4, the end regions 33 and 34 are symmetrical with respect to the center line L3 as shown in FIG. When the absorbent pad 10 is further bent along the center line L3, the end regions 33 and 34 are positioned so as to be in an overlapping state. At this time, the first
The second bonding portions 31 and 32 are also provided so as to be symmetrical with each other, and overlap each other. The above-described four-fold configuration and the method of forming the bonding portion will be described in detail in a later-described manufacturing process. The above configuration is a configuration common to all the embodiments of the present invention except for the number of the bonding portions 31 and 32. That is, as described later, one or a plurality of adhesive portions may be provided as necessary.

Next, the main part of the first embodiment will be described.
6 and 7 show a first embodiment of the absorbent product. The absorbent pad 40 (10) has a configuration in which two adhesive portions are provided and only one piece of release paper is used as a release member. In this case, the bonding portions 31 and 32 are formed in a manufacturing process by applying a hot melt, for example, by a method described later. Absorption pad 40
Is folded in four by sandwiching a release paper 41 between the adhesive portions 31 and 32, as shown in FIG.
Therefore, when the absorbent pad 40 is carried around, the absorbent pad 40 is folded into four parts, so that the absorbent pad 40 is more compact and easier to be formed than before. Moreover, from this four-fold state, when using,
It is very workable and can be used quickly.

That is, when the absorbent pad 40 is used, as shown by an arrow in FIG. 7, when the overlapping state of the ends 33 and 34 is expanded, the release paper 41 is attached to the bonding portion 31 side. Since the bonding state with the bonding portion 32 is released,
This bonding portion 32 is exposed. Next, when the release paper 41 is peeled off from the state shown in FIG.
6 is also exposed, and thereafter, if the end regions 33 and 34 are expanded in the directions of the arrows in FIG.

As a result, since the two bonding portions 31 and 32 are provided, as shown in FIG. 26, the bonding portions 31 and 32 can be used as a men's absorbent pad. It can be fixed to the inner surface (not shown) at two places of the adhesive portions 31 and 32 and used by a woman. In this case, despite the provision of the two adhesive portions, as shown in FIG.
One of the adhesive portions 32 can be exposed, and then the other adhesive portion 31 can be exposed by simply peeling off one piece of release paper 41. It can be used immediately with a lot of work. Also, since there is only one release paper to be discarded, it is easy to use on the go. In addition, even when the user uses the device when going out, it is possible to minimize the generation of dust.

FIGS. 8 and 9 show a second embodiment of the absorbent product of the present invention. This absorption pad 50 is the first
The difference from the third embodiment is that, as shown in FIG. 9, release papers 41 and 42 are attached to the adhesive portions 31 and 32, respectively. Further, the release papers 41 and 42 are
An adhesive is applied to the facing surfaces in FIG.
Therefore, when the absorbent pad 50 is used, as shown by an arrow in FIG. 9, when the overlapping state of the ends 33 and 34 is expanded, one of the release papers 41 and 42, for example, the release paper 4
In a state where 2 adheres to the release paper 41, the bonding state with the bonding portion 32 is released, so that the bonding portion 32 is exposed. Next, from the state shown in FIG.
When the end portions 33 and 34 are expanded, they are ready for use because the remaining adhesive portion 31 is also exposed.

Also in the second embodiment, the bonding portion 3
Since two are provided, as shown in FIG. 26, the two pads 1 and 32 can be used as a men's absorbent pad, and the present invention is not limited to this. It can be fixed at two places of the adhesive parts 31 and 32 and used by women. In this case, despite the provision of two adhesive portions, at the same time as the work of spreading the product, one release paper 42 is exposed to one adhesive portion 32 in a state of being attached to the other release paper 41. After that, the other bonding portion 31 can be exposed by simply removing the two release papers 41 and 42 at the same time. For this reason, compared with the past, it can be used very quickly with extremely simple work. Therefore, the absorbent pad 50 according to the second embodiment has exactly the same operation and effect as the first embodiment except for the number of release papers to be discarded.

FIGS. 10 and 11 show a third embodiment of the absorbent product of the present invention. In FIG. 10, the absorbent pad 60 has an adhesive portion 31 on the upper surface of one end region 33.
Is formed, and a release paper 41 is stuck on the bonding portion 31. An adhesive 61 is applied to the upper surface of the release paper 41 (the surface facing the other end region 34 in FIG. 10). In this state, when the absorbent pad 60 is folded from the center as shown in FIG. 10 and the end regions 33 and 34 are overlapped, as shown in FIG. It moves from the paper 41 to the other end area 34 side. Thereby, the other end region 3
4 is also provided with an adhesive portion 32.

Therefore, when the release paper 41 is peeled off from the state shown in FIG. 11, the remaining adhesive portion 31 is also exposed. Then, if the end regions 33 and 34 are expanded, a usable state is obtained. Becomes As described above, the absorption pad 60
Also, the same functions and effects as those described for the absorbent pad 40 of the first embodiment are exerted.

FIGS. 12 and 13 show a fourth embodiment of the absorbent product of the present invention. In FIG. 12, the absorbent pad 70 has one adhesive portion 3 on one end region 33.
The adhesive portion 31 is covered with a release paper 41. On the other hand, no adhesive portion is formed in the other end region 34, and the absorbent pad has only one adhesive portion.

Further, the release paper 41 and the other end region 34
As shown in FIG. 13 (a), an adhesive 71 is applied between the opposite surfaces. This adhesive is particularly suitable for the adhesive 3
Those having an adhesive strength higher than the adhesive strength of 1 are selected.

As shown in FIG. 13A, the absorption pad 7
When the end portions 33 and 34 are separated from the state where the end regions 33 and 34 are overlapped with each other as shown in FIG. 13B, the release paper 41 7
Based on the adhesive force of No. 1, it is separated from the adhesive portion 31 and adheres to the other end region 34 side.

Next, when the end regions 33 and 34 are expanded, the absorbent pad 70 is ready for use as shown in FIG. In this case, when the same usage method as that of the conventional female absorbent pad is adopted, the absorbent pad 70 can be fixed to the inside of a stake or the like with one adhesive portion 31. In this case, since the release paper 41 is stuck and fixed to the other end region 34, it can be worn as it is, and there is no need to discard the release paper 41. Therefore, according to this absorption pad 70,
As in the first embodiment, the release paper 41 is formed in a four-fold compact form, not only convenient for carrying around, but also as shown in FIG. 13, by a simple operation of opening each end region 33, 34. There is no need to perform an operation of peeling off, and the device can be used. In addition, since no release paper to be discarded is generated, such a point is more convenient than the above-described embodiments.

Next, the manufacturing method of the absorbent pad according to each of the above-described embodiments will be described by describing the manufacturing steps. In each of the above-described embodiments, the number of adhesive portions and the number of release papers are different. This point can be changed as appropriate in the following manufacturing method.
The manufacturing method will be described based on the structure of the absorption pad described with reference to FIG.

FIG. 14 shows a back sheet supply unit 80 for producing the first sheet material 11 of the absorbent pad 10 described with reference to FIGS. In the figure, a back sheet feeding means 81 feeds a first sheet material 11 wound up in a roll shape onto a feed belt 82. On the other hand, the release paper supply means 83 feeds a long belt-shaped release paper 87 in one direction, and the release paper before cutting is coated with hot melt from the adhesive supply means 84. It has become. That is, the adhesive supply unit 84 continuously applies the hot melt by a predetermined amount at a predetermined interval from above the release paper 87.

The belt-like release paper 87 on which the hot melt is placed is cut by the rotary cutter 85 so as to be a unit of the release paper 41 described above. The cut release paper 41 is adsorbed on the lower surface by the suction drum 86 sucking air while the hot melt is placed on the upper surface. On the other hand, in the drawing of the suction drum 86, the lower surface faces the upper surface of the above-described first sheet material (back sheet) 11, where the suction by the suction drum 86 is released and cut individually. Each release paper 41 is placed on the first sheet material 11 with the surface to which the hot melt is applied facing down, whereby the release paper 41
Is attached to the first sheet material 11. As shown in FIG. 16, in this step, the elastic members 27 are arranged along both side edges of the first sheet material 11.
The release paper 41 has, for example, a silicon coating on the surface to which the hot melt is applied. When the product is used, when the release paper 41 is peeled off, the hot melt moves to the first sheet material 11. Thus, the above-mentioned bonding portion is formed.

FIG. 15 is a view schematically showing the entire manufacturing process. The manufacturing apparatus 100 includes an absorbing member manufacturing section 91,
The back sheet supply unit 80 described above and the surface material production unit 92
And a four-fold processing part 93 described later.

The absorbing member manufacturing section 91 is a unit for manufacturing the absorbing member 16 shown in FIGS. In FIG. 15, the first tissue supply unit 93 supplies the tissue 23 shown in FIGS. 3 and 4 on the feed belt 123 in a belt-like state. On the other hand, the first absorber supply unit 94 is provided with the tissue 2
A mixture of polymer and pulp is sprayed on 3 to form an absorber. That is, the pulp sent from the pulp supply unit 88 is supplied with polymer supply means 89a.
The absorber 21 is formed in a unit amount on the peripheral surface of the pattern drum 96 by spraying the polymer. Each of the absorbers 21 is placed on the tissue 23 on the feed belt 123 at an interval from the pattern drum 96 as shown by a material 124 in FIG. The absorbent may be configured to mix the polymer and the pulp in the pulp supply unit 88 in advance.

In this state, the material 124 is formed into a predetermined shape by passing through the press belt 111 and the press roll 112.
The processing is performed as shown in FIG. That is, in this folding step, the absorber 21 is wrapped in the tissue 23 by folding both sides of the tissue 23 inward (C-fold).

In the same manner as the first absorber supply section 94, the second absorber supply section 97 blows pulp from the pulp supply section 88 and the polymer supply means 89b through the nozzle 99. A polymer is mixed and formed on the peripheral surface of the pattern drum 98 for every 22 units of the absorber. Each of the absorbers 22 is placed on a feed belt 122 from a pattern drum 98. A tissue 24 is supplied onto the absorber 22 from a second tissue supply unit 114, and the absorber 22 and the tissue 24 are superimposed on the material 124 at a point A in the drawing. The absorber 16 made of the above-mentioned material 124 and the absorber 22 and the tissue 24 thus made pass through the embossing roll 115 and the mat cutter 116 in the process of being fed by the feed belt 125, and as shown in FIG. 16 is assumed. As shown in FIG. 16, the absorber 16 includes a surface material sent from the surface material manufacturing unit 92 and the first sheet material 11 sent from the back sheet supply unit 80 at a position B of the feed belt 125. Superimposed.

The surface material production section 92 is provided with the surface material 12 shown in FIG.
6 is a unit for manufacturing. The surface material production section 92 includes a top sheet supply section 117, a flap supply section 119,
And a supply section 118 of an elastic member. The top sheet supply unit 117 feeds the belt-like top sheet (second sheet material) 12 of FIG. 16 onto the feed belt 128 of FIG. On the other hand, the flap supply unit 119 feeds the third sheet members 25 and 26 described with reference to FIGS. 3 and 4 onto the feed belt 129 as a band-shaped sheet material 131 in which both are integrated in the width direction. This sheet material 131 is shown in FIG.
As shown in FIG. 7, it is processed by the slitter 120.
That is, the slitter 120 is a belt-shaped sheet material 131.
The sheet material 131 is cut near the center in the width direction and cut into two strip-shaped sheet materials 25 and 26 as shown in the figure.

The third sheet members 25 and 26 are fed to a feed belt 127, and the rubber belt members 27, 27 from the elastic member supply portion 118 are fed on the feed belt 127.
27 are respectively arranged along the length direction. A plurality of the rubber cord members 27 may be arranged for each of the sheet members 25 and 26.

In this manner, at the position B of the feed belt, the respective materials are laminated in a specific order as shown in FIG. 16 and fixed to each other as described with reference to FIGS. And this laminated material is
At 21, it is cut into an R shape according to the shape of the user's crotch and sent to the next quarter-folding section 93.

As shown in FIG. 19, the four-folded portion 93 is formed of a side edge folded portion 139a for bending both side edges of the product inward, a product turnover portion 131, and a material fed in a strip shape. A cutter 139b for cutting the sheet 124 in the width direction in product units, a fold guide portion 132 for guiding a four-folding process for each product unit,
, A second folded portion 142, and a third folded portion 151. The above product turn-over part 13
1 uses a predetermined guide for holding both side edges of the strip-shaped material 124 from both sides, respectively.
The guide 24 is separated from the feed belt 125 and held by the guide, and the guide is arranged to be twisted three-dimensionally. As a result, the material 124 becomes as shown in FIG.
As shown in FIG. 8, after the sheet is turned upside down by the reversing unit 133, the sheet is sent to the subsequent feed belt 125. This allows
The absorbent pads 10 on the feed belt 125 are laminated and superposed in the order shown in FIG. 16, and the state in which the surface material 126 is directed upward is reversed to the state in which the back sheet 11 is directed upward. To the cutter 139b. The band-shaped material 124 is cut into products in the width direction by the cutter 139b, and is sent to the folding guide 132.

The folding guide 132 is configured as shown in FIG. In the production line, at least from here on, the feed belt 125 is provided with first belts 125a and 125b. That is, the feed belt 125 is a feed belt 137 shown in FIG.
A first belt 125a on which the absorbent pad 10 as a product material is placed, and a second belt 125 disposed on the upper surface of the absorbent pad 10 are provided.
b).

In the feed guide portion 132, the first double feed belt 12 for feeding the absorbent pad 10 before folding is provided.
5 has an opening 135 near the terminal end where the lower first belt 125a is cut off. At the subsequent stage of the first double feed belt, a second double feed belt 134 configured to have an upward convex shape is arranged. The second double feed belt 134 also has an opening 136 near the terminal end where the lower first belt 134a is cut off. A third double feed belt 137 extending slightly upward is disposed downstream of the second double feed belt.

The opening 1 of the first double feed belt 125
There is provided a first folded portion 141 which moves upward and downward from the lower side facing 35. Further, for example, a position measurement sensor 143 is provided facing the edge of the opening 135. The second folded portion 14 that moves substantially horizontally or slightly obliquely toward the opening 136 of the second double feed belt 134.
2 are provided. Further, for example, a position measurement sensor 144 is provided facing the edge of the opening 136.

As the position measuring sensors 143 and 144, for example, an interrupter type photo sensor can be used. This photo sensor detects the distance over which the absorption pad 10 sent over the openings 135 and 136 is relatively large, and the detection result is processed by, for example, an encoder (not shown). When the detection result reaches a preset numerical value, each of the folded portions 141,
142 is driven.

Therefore, when the absorbent pad 10 is fed by the first double feed belt 125 as shown in FIG. 20 in the folding guide section 132, the absorbent pad 10 is backed in this state. The seat 11 faces upward. Then, the absorbent pad 10 is connected to the opening 13.
5, the position measurement sensor measures the distance of the distal end 33 of the absorbent pad 10 beyond the edge of the opening 135, and when the distance reaches a predetermined distance, the first folded portion 141 is moved. It is driven and folded back so that the tip faces downward as shown. Next, the absorbent pad 10 is sent to the second double feed belt 134. During this time, the folded state of the absorbent pad 10 on the distal end side 33 is suppressed by the upper belt 134b. Then, when the absorbent pad 10 reaches the end of the second double feed belt 134 and crosses the edge of the opening 136, the absorbent pad 10 is fed while passing over the edge in the same manner as described above. Distance is the position measurement sensor 144
Is measured by When the measured value reaches a predetermined distance, the second folding section 142 is driven, and the rear end side of the absorbent pad 10 is bent such that the rear end faces inward. At this time, since the leading end side of the absorbent pad 10 has been fed to a position protruding below the upper surface of the lower belt 137a of the third double feed belt 137, the arm of the second folded portion 142 By such a pressing motion, the absorbent pad 10 is turned over as shown in FIG.
The sheet is fed to the third double feed belt 137 with the top sheet 12 facing upward.

Next, the absorbent pad 10 is shown in FIG.
It is sent to the third folding section 151. At the end of the third double feed belt 137, the upper belt 137b is shorter than the lower belt 137a by a distance M, thereby forming an opening 155 above. Above the edge of the opening 155, a position measurement sensor 157 is arranged. Further, a fourth double feed belt 154 is further provided with an opening 1 after the third double feed belt 137.
The size of the opening 156 is set to be at least shorter than the entire length of the absorbent pad 10. A double feed belt 138 extending in the vertical direction is provided below the opening 156. Further, above the opening 155, a folding means 152,
An adhesive dispenser 153 having a nozzle for ejecting the adhesive downward is provided adjacent to the folding means 152.

As a result, as shown by the chain line, the absorbent pad 10 is moved by the third double feed belt 137 in the feed direction N.
Is sent along, the position measurement sensor 157 detects this, measures the distance beyond the edge of the opening 155, and when a predetermined distance is measured, the dispenser 153
Spray the adhesive from. Thereby, in this step, when the release paper 41 is present in the folded end region 34 on the leading end side of the absorbent pad 10, the adhesive is applied to the upper surface thereof.

At this time, the tip side of the absorbent pad 10 is
Is placed on the lower belt 154a of the double feed belt 154, and the folded end region 33 on the rear end side of the absorbent pad 10 is located below the dispenser. When the release paper 41 is stuck only to the end region 33, the adhesive may be sprayed from the dispenser 153 here.

Next, the folding means 152 descends. In the illustrated case, the folding means 152 is formed of, for example, a folding hoe, and the folding hoe 152 is folded in two so as to press substantially near the center of the absorbent pad 10 downward. Incidentally, the folding means 152 may be constituted by folding wings composed of two wings fixed to a rotating disk which rotates in the opposite directions in synchronization with each other as shown in FIG. Also, the first and second folded portions 141 and 141 shown in FIG.
142 may be constituted by the same folding means as these,
It is good also as a structure which presses and folds with a pressing arm.

As a result, as shown in FIG. 22, the center of the absorbent pad 10 is folded in two, and the absorbent pad 10 is fed downward by the fourth double feed belt 138 in a state of being folded in four as a whole. In this case, the absorbent pad 10 is held down by the first and second belts 138a and 138b, kept in a four-fold state, and sent to a packaging step (not shown).

As described above, the manufacturing apparatus 10 of this embodiment
According to No. 0, for example, the absorbent pad 10 of the absorbent product can be formed into a compact four-fold structure as described above, and further, an adhesive is applied on the release paper to reduce the number of release papers. It is possible to do.

The present invention is not limited to the above embodiment.
By applying the first and second sheet materials, the absorbing member and the respective flap portions of the above-described embodiment, the present invention is applied to various absorbent products other than the absorbent pad, for example, oshimes and feminine hygiene products. be able to.

[0073]

As described above, according to the present invention, there is provided an absorbent product which can be made more compact than before and which can reduce or eliminate the work of peeling off the release paper during use and improve the usability. The manufacturing method can be provided.

[Brief description of the drawings]

FIG. 1 is a top view of an absorbent pad as a first embodiment of an absorbent product according to the present invention.

FIG. 2 is a schematic perspective view of the absorbent pad of FIG.

3A is a schematic cross-sectional view taken along line AA of FIG. 1, FIG.
FIG. 2 is a schematic sectional view taken along line BB of FIG. 1.

FIG. 4 is an explanatory diagram showing a four-fold position of the absorbent pad of FIG. 1;

FIG. 5 is an explanatory diagram showing a four-fold position of the absorbent pad of FIG. 1;

FIG. 6 is a schematic side view of a first embodiment of an absorbent product according to the present invention.

FIG. 7 is a schematic side view of the absorbent product of FIG.

FIG. 8 is a schematic side view of a second embodiment of an absorbent product according to the present invention.

FIG. 9 is a schematic side view of the absorbent product of FIG.

FIG. 10 is a schematic side view of a third embodiment of an absorbent product according to the present invention.

FIG. 11 is a schematic side view of the absorbent product of FIG.

FIG. 12 is a schematic side view of a fourth embodiment of an absorbent product according to the present invention.

FIG. 13 is a schematic side view of the absorbent product of FIG. 12, sequentially showing the form in use.

FIG. 14 is a diagram showing a back sheet supply unit of the apparatus for manufacturing an absorbent pad according to the embodiment of the present invention.

FIG. 15 is an overall view showing a configuration of an apparatus for manufacturing an absorbent pad according to an embodiment of the present invention.

16 is a perspective view showing a laminated structure of an absorption pad in the manufacturing apparatus of FIG.

FIG. 17 is a view showing a state of processing of a third sheet material of the absorbent pad of FIG. 16;

FIG. 18 is a view showing a part of a process of feeding an absorbent pad in the manufacturing apparatus of FIG.

FIG. 19 is a view showing a four-fold processing part of the manufacturing apparatus of FIG. 15;

20 is a view showing a folding guide part of a four-fold processing part of the manufacturing apparatus of FIG.

FIG. 21 is a diagram illustrating a third folding section of the folding guide section of FIG. 20;

FIG. 22 is a diagram illustrating another configuration example of the third folding section of the folding guide section of FIG. 20;

FIG. 23 is a perspective view showing an example of a conventional absorption pad.

FIG. 24 is a diagram showing a usage example of the absorbent pad of FIG. 23.

FIG. 25 is a diagram showing a three-fold state of the absorbent pad of FIG. 23.

FIG. 26 is a view showing another example of use of the absorbent pad of FIG. 23.

[Explanation of symbols]

10 ... absorption pad, 11 ... first sheet material, 1
2 ... second sheet material, 13 ... first flap portion, 16 ... absorbing member, 21 ... first absorber, 2
2 ... second absorber, 23, 24 ... tissue, 2
5, 26 ... third sheet material, 27 ... elastic member,
31, 32 ... adhesive part, 33,34 ... end area,
41: release member (release paper), 80: back sheet supply section, 91: absorption member production section, 92: surface material production section, 93: four-fold processing section, 100 ...・ Manufacturing device, 132: folding guide, 141, 142, 1
51 ... folding part.

──────────────────────────────────────────────────続 き Continued on front page (51) Int.Cl. ⁶ Identification code FI A61F 13/18 370

Claims (7)

[Claims] 1. A liquid-impermeable first sheet material, a liquid-permeable second sheet material combined with the first sheet material, and the first sheet material and the second sheet. And an absorbent member disposed between the first sheet material and the first sheet material, near each end in the longitudinal direction of the absorbent product. The first and second bonding portions are provided by respectively folding back the respective end portions of the product to the inside, and further bending the vicinity of the center of the product. Characterized in that a peeling member to be peeled off at the time of use is arranged between the respective adhesive parts. 2. The device according to claim 1, wherein two peeling members are disposed between the respective bonding portions, and the two peeling members are bonded to each other. Absorbent products. 3. The peeling member is a single peeling member,
The adhesive provided in advance on the peeling member moves to one end of each of the ends of the product superimposed on the peeling member, whereby any one of the first and second bonding portions is bonded. The absorbent product according to claim 1, wherein the portion is formed. 4. A liquid-impermeable first sheet material, a liquid-permeable second sheet material combined with the first sheet material, and the first sheet material and the second sheet. And an absorbent member disposed between the first sheet material and the first sheet material near one end in the longitudinal direction of the absorbent product. The product is provided with an adhesive portion, and the end portions of the product are folded back inward, and the vicinity of the center of the product is further bent so that the ends are overlapped with the adhesive portion inside. A single peeling member to be attached to the adhesive portion is disposed between the ends, and a portion of the peeling member facing the other end is stronger than the adhesive portion. Adhesive with excellent adhesive strength is applied An absorbent product, characterized in that: 5. A step of supplying a backsheet, which continuously supplies a release member to a liquid-impermeable backsheet, and a step of manufacturing an absorbing member disposed on the backsheet; A surface material manufacturing step of manufacturing a surface material from a sheet member and a top sheet that constitute a flap portion, and a product material in which the back sheet, the absorbing member, and the surface material are laminated to be disposed on the member. Folding each end in the longitudinal direction of the product inward, and further bending the vicinity of the center of the product so as to position the ends so as to overlap each other, thereby folding the product in four. A method for producing an absorbent product, characterized in that: 6. A step of turning over the product material obtained by laminating the back sheet, the absorbing member, and the surface material at a stage subsequent to the supply step of the back sheet and the manufacturing process of the surface material. The method for producing an absorbent product according to claim 5, wherein 7. The four-fold processing step includes: a first folding process in which one end, which is a front end side of the product material, is folded back along a feed line of the product material so that a front end faces a back sheet side; A second folding process of turning the product material upside down while turning the other end of the product material back so that the rear end faces the back sheet side, and supporting the vicinity of both ends in the traveling direction of the line of the turned upside down product material; 7. The method of manufacturing an absorbent product according to claim 5, further comprising a third folding process in which the product material is further folded in half by pressing substantially near the center of the product material from above. .