CN111526844A - Method for manufacturing absorbent article and apparatus for manufacturing absorbent article - Google Patents
Method for manufacturing absorbent article and apparatus for manufacturing absorbent article Download PDFInfo
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- CN111526844A CN111526844A CN201880084014.2A CN201880084014A CN111526844A CN 111526844 A CN111526844 A CN 111526844A CN 201880084014 A CN201880084014 A CN 201880084014A CN 111526844 A CN111526844 A CN 111526844A
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- Prior art keywords
- stretchable sheet
- sheet
- adhesive
- region
- stretchable
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
Abstract
A method for manufacturing an absorbent article (1) having an absorbent main body (10) and a first waist section (20), comprising: a conveying step of conveying the non-stretchable sheets (21, 22) constituting the first waist section (20) in a conveying direction; a bonding region forming step of forming a bonding region (41) by providing an adhesive in a predetermined region of the conveyed non-stretchable sheet (21, 22); and a stretchable sheet joining step of joining the stretchable sheet (24) in a state of being stretched in the conveying direction to the non-stretchable sheet (21, 22) with the adhesive region (41) interposed between the stretchable sheet and the non-stretchable sheet (21, 22), wherein in the stretchable sheet joining step, the stretchable sheet (24) is joined in the following manner: in the intersecting direction intersecting the conveying direction, the end (41a) of the bonding region (41) on the first side is positioned beyond the end (24a) of the stretchable sheet (24) on the first side toward the first end.
Description
Technical Field
The present invention relates to a method for manufacturing an absorbent article and an apparatus for manufacturing an absorbent article.
Background
Disposable diapers are known as examples of absorbent articles. Patent document 1 discloses a disposable diaper in which an absorbent body is disposed across between a front body outer cover and a back body outer cover, and both widthwise side edges of the front body outer cover and the back body outer cover are joined to each other to form a waist opening. In the front-body exterior assembly and the back-body exterior assembly, the waist elastic member is fixed in an extended state between the inner sheet and the outer sheet (non-stretchable sheet).
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2013 and 138795.
Disclosure of Invention
Problems to be solved by the invention
In such a disposable diaper (absorbent article), a flat stretchable sheet (e.g., an elastic nonwoven sheet) may be used as the waist elastic member. The use of such a stretchable sheet enables the front body outer cover and the back body outer cover (waist portion) to be in close contact with the wearer's body. Therefore, this can suppress the elastic member from leaving marks on the skin of the wearer.
The present invention has been made in view of the above-mentioned conventional problems, and an aspect of the present invention is to provide a method of manufacturing an absorbent article and the like that suppresses curling of a waist-opening-side end portion of a stretchable sheet provided in a waist portion.
Means for solving the problems
However, in the process of manufacturing such an absorbent article, after the stretchable sheet is fixed in an extended state and then the extended state is released, the stretchable sheet contracts and the tension of the end portion is reduced, and there is a case where the end portion region of the stretchable sheet curls upward. The stretchable sheet is laminated on itself in the thickness direction in the upward curled region, thereby locally increasing the stretching force, and for example, there is a risk that the wearer feels discomfort by subjecting the skin of the wearer to strong compression.
In addition, if the waist opening side (waist circumferential side) end portion of the stretchable sheet is curled and folded, the stretching force increases in the folded portion of the stretchable sheet accordingly. As a result, the stretching force in the waistline region becomes higher than the design force, and the waistline opening is more difficult to open when the absorbent article is worn.
A principal aspect of the present invention for achieving the above-described aspect is a method of manufacturing an absorbent article having an absorbent main body and a first waist portion, the method including: a conveying step of conveying a non-stretchable sheet as a constituent member of the first waist section in a conveying direction; an adhesive region forming step of forming an adhesive region by providing an adhesive on a predetermined region of the non-stretchable sheet being conveyed; a stretchable sheet joining step of joining a stretchable sheet in a state of being stretched in the conveying direction to the non-stretchable sheet by the adhesive region, in which the stretchable sheet is joined in such a manner that: such that a first side end of the bonding region on a first side in an intersecting direction, which is a direction intersecting the conveying direction, is located on the first side with respect to a first side end of the stretchable sheet.
Other features of the present invention will become apparent from the description of the specification and the drawings.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, it is possible to provide a method for manufacturing an absorbent article in which curling of the waist-opening-side end portion of the stretchable sheet provided in the waist portion is suppressed.
Drawings
Fig. 1 is a perspective view of a disposable diaper 1 (hereinafter, referred to as "diaper").
Fig. 2 is a plan view of the diaper 1 in an unfolded and extended state.
Fig. 3 is a sectional view taken along line II in fig. 2.
Fig. 4 is a flowchart showing a part of the steps of manufacturing the abdomen-side waist portion 20.
Fig. 5 is a schematic diagram showing the conveying line of the abdomen-side waistline portion 20, and shows the processing contents executed in the respective steps shown in fig. 4.
Fig. 6 is a schematic sectional view taken along a-a in fig. 5, and shows a state in which the first adhesive region 41 has been formed on the exterior continuous sheet 25 s.
Fig. 7 is a schematic sectional view taken along B-B in fig. 5, and shows a state in which the stretchable sheet 24 has been joined to the exterior continuous sheet 25s in the first adhesive region 41.
Fig. 8 is a schematic cross-sectional view of a comparative example in which the stretchable sheet 24 is joined such that the first side end 41a of the first adhesive region 41 is located on the second side in the intersecting direction with respect to the first side end 24a of the stretchable sheet 24.
Fig. 9 is a schematic sectional view taken along C-C in fig. 5, and shows a state in which the second adhesive region 43 has been formed on the stretchable sheet 24.
Fig. 10 is a schematic sectional view taken along D-D in fig. 5, and shows a state where the outer sheet 22 covers the stretchable sheet 24.
Fig. 11 is a schematic sectional view of a modification of the covering step.
Detailed Description
At least the following matters will become clear from the description of the present specification and the accompanying drawings.
A method of manufacturing an absorbent article having an absorbent main body and a first waist section, the method comprising: a conveying step of conveying a non-stretchable sheet as a constituent member of the first waist section in a conveying direction; an adhesive region forming step of forming an adhesive region by providing an adhesive on a predetermined region of the non-stretchable sheet being conveyed; a stretchable sheet joining step of joining a stretchable sheet in a state of being stretched in the conveying direction to the non-stretchable sheet by the adhesive region, in which the stretchable sheet is joined in such a manner that: such that a first side end of the bonding region on a first side in an intersecting direction, which is a direction intersecting the conveying direction, is located on the first side with respect to a first side end of the stretchable sheet.
According to this manufacturing method of the absorbent article, the stretchable sheet is joined to the first side end in the intersecting direction, whereby occurrence of curling of the stretchable sheet in the first side end region is suppressed. Therefore, the waist opening of the diaper can be easily opened, and the waist of the wearer can be prevented from being excessively contracted.
In such a method of manufacturing an absorbent article, it is desirable that, after the stretchable sheet joining step, a predetermined sheet member is joined to a portion of the adhesive region extending beyond the first side end of the stretchable sheet toward the first side in the intersecting direction.
According to this manufacturing method of the absorbent article, the entire area of the adhesive area in the intersecting direction is covered by the predetermined sheet member, and the adhesive is not exposed to the outside, so that the adhesion of the adhesive to the skin of the wearer or other members is suppressed.
In such a method of manufacturing an absorbent article, it is desirable that the predetermined sheet member is a portion of the non-stretchable sheet that has been folded toward the second side in the intersecting direction at a predetermined position that is located on the first side in the intersecting direction with respect to the first side end of the stretchable sheet.
According to this manufacturing method of an absorbent article, the non-stretchable sheet is folded at the predetermined position, and therefore the adhesive forming the adhesive region is restricted from moving to the first side in the intersecting direction with respect to the predetermined position. In other words, this configuration suppresses the adhesive from extending beyond the upper end of the abdomen-side waist portion when the diaper is put in a pants-type state. Therefore, the wearer is less likely to feel discomfort.
In such a method for manufacturing an absorbent article, it is desirable that the method further includes a second adhesive region forming step of forming a second adhesive region by providing the adhesive on a predetermined region of a surface of the stretchable sheet, the surface of the stretchable sheet being a surface on the opposite side to the surface to which the adhesive region has been attached, after the stretchable sheet joining step, the portion of the non-stretchable sheet that has been folded being joined to the stretchable sheet by the second adhesive region.
According to this method of manufacturing an absorbent article, the already folded portion of the non-stretchable sheet is reliably fixed in a state of being laminated with the stretchable sheet by the second adhesive region, and therefore, the non-stretchable sheet is suppressed from returning from the folded state to its original state.
In such a method for manufacturing an absorbent article, it is desirable that the average basis weight of the portion of the second adhesive region where the adhesive is provided is larger than the average basis weight of the portion of the adhesive region where the adhesive is provided.
According to this method of manufacturing an absorbent article, the basis weight of the adhesive agent provided in the second adhesive region is set large, so the bonding strength between the non-stretchable sheet and the stretchable sheet is locally improved, and peeling of the non-stretchable sheet can be suppressed even when affected by an external force such as a frictional force.
In such a method of manufacturing an absorbent article, it is desirable that a first side end of the second adhesive region on a first side in the intersecting direction is located on the second side with respect to a first side end of the stretchable sheet.
According to this method of manufacturing an absorbent article, the second adhesive region does not extend beyond the first side end of the stretchable sheet on the first side, and therefore overlapping of the second adhesive region and the adhesive region with each other is suppressed. Therefore, this suppresses the following: there is an excessive amount of adhesive, which is spread out from the abdomen-side waistline, and the adhesive causes hardening of the nonwoven fabric sheet.
In such a method of manufacturing an absorbent article, it is desirable that, on the second side in the intersecting direction, the second side end of the portion of the non-stretchable sheet that has been folded is located on the second side with respect to the second side end of the second adhesive region.
According to this method for manufacturing an absorbent article, since the second adhesive region is covered with the non-stretchable sheet, the adhesive can be prevented from spreading out from the second side edge of the non-stretchable sheet. Further, the adhesive does not adhere to the second side end portion of the non-stretchable sheet, and therefore the area near the end portion is a so-called dry edge and remains soft. Therefore, the diaper has a good texture when worn.
In such a method for manufacturing an absorbent article, it is desirable that, in the stretchable sheet joining step, the stretchable sheet is joined as follows: such that a second side end of a second side of the stretchable sheet in the intersecting direction is located on the second side relative to a second side end of the adhesive region.
According to this method for manufacturing an absorbent article, the stretchable sheet is disposed such that the adhesive region does not extend beyond the second side edge of the stretchable sheet, and therefore, the adhesive can be prevented from adhering to the body of the wearer in the second side edge region of the stretchable sheet.
In such a method for manufacturing an absorbent article, it is desirable that, in the stretchable sheet joining step, the stretchable sheet is joined as follows: such that a second side end of a second side of the stretchable sheet in the intersecting direction is located on the first side with respect to a second side end of the adhesive region.
According to this manufacturing method of an absorbent article, the second side end portion of the stretchable sheet is less likely to curl, and therefore, a situation in which the contraction force of this region is higher than the design value is suppressed.
Further, an apparatus for manufacturing an absorbent article having an absorbent main body and a first waist portion, the apparatus comprising: a conveying unit configured to convey a non-stretchable sheet as a constituent member of the first waist body portion in a conveying direction; an adhesive region forming unit configured to form an adhesive region by providing an adhesive on a predetermined region of the conveyed non-stretchable sheet; a stretchable sheet joining unit configured to join a stretchable sheet in a state of being stretched in the conveying direction to the non-stretchable sheet using the adhesive region, the stretchable sheet joining unit performing joining of the stretchable sheet in such a manner that: such that a first side end of the bonding region on a first side in an intersecting direction, which is a direction intersecting the conveying direction, is located on the first side with respect to a first side end of the stretchable sheet.
According to this apparatus for manufacturing an absorbent article, the stretchable sheet is joined to the first side end in the intersecting direction, and therefore an absorbent article in which the stretchable sheet is suppressed from curling in the first side end region can be manufactured. Therefore, the waist opening of the absorbent article can be easily opened, and the waist of the wearer can be prevented from being excessively contracted.
The present invention is not limited to the embodiments described above.
An embodiment of the absorbent article manufactured by the manufacturing method according to the present invention will be described below taking a disposable diaper for infants as an example. Note that the absorbent article according to the present invention is not limited to disposable diapers for infants, and for example, may be applied to disposable diapers for adults, sanitary shorts, and the like.
The disposable diaper 1 has a structure.
Fig. 1 is a perspective view of a disposable diaper 1 (hereinafter, referred to as "diaper"). Fig. 2 is a plan view of the diaper 1 in an unfolded and extended state. Fig. 3 is a sectional view taken along line I-I in fig. 2.
In the state of the pants shape shown in fig. 1, the diaper 1 has up-down and left-right directions, and includes a waist opening BH and a pair of leg openings LH. The hip opening BH side is an upper side and the crotch side is a lower side with respect to the up-down direction. Further, as shown in fig. 3, the thickness direction refers to a direction in which the constituent members of the diaper 1 overlap each other, the skin side refers to a side that contacts the wearer in the thickness direction, and the non-skin side refers to a side that does not contact the wearer in the thickness direction.
The diaper 1 further includes an absorbent main body 10, a ventral waistline portion 20, and a dorsal waistline portion 30, which are three members that are rectangular in plan view. The abdomen-side waistline portion 20 (first waistline portion) is in contact with the abdomen-side region of the wearer, and the back-side waistline portion 30 (second waistline portion) is in contact with the back-side region of the wearer.
When the diaper 1 is in the developed state shown in fig. 2, the abdominal-side waistline portion 20 and the back-side waistline portion 30 are disposed so that the longitudinal direction thereof coincides with the left-right direction of the diaper 1. One end in the longitudinal direction of the absorbent main body 10 is disposed in the center portion with respect to the left-right direction of the abdomen-side waistline portion 20, and the other end in the longitudinal direction of the absorbent main body 10 is disposed in the center portion with respect to the left-right direction of the back-side waistline portion 30.
When the diaper 1 is in the unfolded state shown in fig. 2, the absorbent main body 10 is folded once at substantially the center in the longitudinal direction so that the longitudinal direction of the absorbent main body 10 coincides with the up-down direction of the diaper 1. Both side end portions of the abdomen-side waistline portion 20 in the left-right direction of the diaper 1 are joined to both side end portions of the back-side waistline portion 30 by using heat fusion, ultrasonic fusion, or the like to form a pair of joined regions 2, thereby obtaining the diaper 1 in a state of an underwear shape shown in fig. 1.
As shown in fig. 3, the absorbent body 10 includes an absorbent body 11, a liquid-permeable front sheet 12 disposed on the skin side of the absorbent body 11, a liquid-impermeable back sheet 13 disposed on the non-skin side of the absorbent body 11, and an outer sheet 14 disposed on the non-skin side of the back sheet 13.
The absorbent body 11 includes an absorbent core 11A that absorbs and holds discharged liquid such as urine, and a liquid-permeable core-wrapping sheet 11B that covers the absorbent core 11A. For example, the absorbent core 11A is composed of liquid absorbent fibers (such as pulp containing Super Absorbent Polymer (SAP)) molded into a predetermined shape.
Further, as shown in fig. 2, leg elastic members 15 are provided on both side portions in the left-right direction of the absorbent main body 10, thereby allowing the diaper 1 to fit the legs of the wearer. For example, the leg elastic members 15 are fixed between the two outer sheets 14 folded inward in the left-right direction in a state of being elongated in the longitudinal direction of the absorbent main body 10. The leg elastic member 15 is a linear elastic member, an elastic sheet, or the like.
As shown in fig. 3, the abdominal-side waistline portion 20 and the back-side waistline portion 30 respectively include inner layer sheets 21 and 31, outer layer sheets 22 and 32 respectively covering the inner layer sheets 21 and 31, and a plurality of linear elastic members 23 and 33.
The outer sheets 22 and 32 are disposed on the non-skin side of the inner sheets 21 and 31. The inner sheets 21 and 31 and the outer sheets 22 and 32 are disposed on the non-skin side of the absorbent main body 10. .
The inner sheets 21 and 31 and the outer sheets 22 and 32 are each a non-stretchable sheet having substantially no stretchability in the left-right direction of the diaper 1. The inner sheets 21 and 31 and the outer sheets 22 and 32 may be composed of an SMS nonwoven sheet (spunbond/meltblown/spunbond nonwoven sheet), a spunbond nonwoven sheet, an air-permeable nonwoven sheet, a plastic sheet, a porous plastic sheet, or a laminate sheet including any of the above layers.
The linear elastic members 23 and 33 are arranged side by side in the up-down direction between the inner layer sheets 21 and 31 and the outer layer sheets 22 and 32, respectively, and are fixed in a state of being elongated in the left-right direction. Therefore, the abdominal-side waistline portion 20 and the back-side waistline portion 30 can be stretched in the right-left direction so as to fit the waistline of the wearer. The linear elastic members 23 and 33 may be constituted by linear elastic members made of rubber, spandex, or the like.
In the back-side waistline portion 30, the linear elastic member 33 is disposed in a range from the upper end portion to the lower end portion. However, the upper end portion of the abdomen-side waistline portion 20 is not provided with the linear elastic member 23, but is provided with a stretchable sheet 24 having stretchability in the left-right direction. Note that, in the present embodiment, although the lower end portion of the stretchable sheet 24 overlaps the linear elastic member 23 in the vertical direction, the overlapping is not essential.
According to the structure in which the upper end portion of the abdomen-side waistline portion 20 is provided with the stretchable sheet 24 without providing the linear elastic member 23, the upper end portion of the abdomen-side waistline portion 20 is in close contact with the wearer's ground. Therefore, this suppresses local strangulation, and can suppress the trace formation by the telescopic member. In particular, the infant has an abdominal region that swells, and therefore it is advantageous to suppress the contraction of the abdomen-side waist portion 20.
Further, the stretching force in the upper end portions of the waistline portions 20 and 30 greatly affects the ability of the waistline opening BH to be easily opened when the diaper 1 is put on. The stretchable sheet 24 has a property of being easily stretched from a natural state but being hardly contracted from the stretched state. Therefore, by providing the stretchable sheet 24 at the upper end portion of the abdominal-side waistline portion 20, it is possible to more easily open the waistline opening BH when putting on the diaper 1, and also to prevent strangulation of the abdominal-side region after the waistline portions 20 and 30 have fitted to the wearer.
The stretchable sheet 24 may be constituted of a stretchable fibrous nonwoven fabric sheet manufactured by any of various known manufacturing methods, such as by having a mass of 10g/m2To 40g/m2Or more preferably 15g/m2To 30g/m2A spunbonded nonwoven fabric sheet, an air-permeable nonwoven fabric sheet, a needle-punched nonwoven fabric sheet, etc. comprising the elastic fibers. The raw material constituting the elastic fiber is a thermoplastic elastomer, rubber, or the like. In particular, when the raw material is a thermoplastic elastomer, melt spinning can be performed using an extruder as in the case of a general thermoplastic resin. The fibers thus obtained can be easily heat-welded, which is advantageous for a stretchable fiber nonwoven sheet. Examples of the thermoplastic elastomer include styrene elastomers, olefin elastomers, polyester elastomers, and polyurethane elastomers. Any of the above may be used alone, or two or more of them may be used in combination. The stretch sheet only needs to exhibit elasticity at least in the left-right direction, and may exhibit elasticity in two or more directions. The stretch ratio of the stretchable sheet 24 in the left-right direction is preferably about 1.2 times to 3.0 times.
Method for manufacturing abdomen-side waist portion 20
As described above, the diaper 1 is composed of the abdomen-side waistline portion 20, the back-side waistline portion 30, and the absorbent main body 10 disposed across these waistline portions. In the manufacturing steps of the diaper 1, sheet members or the like as materials constituting the above-described portions (10, 20, and 30) are subjected to various types of processing such as joining processing and cutting processing while being conveyed in the conveying direction, thereby obtaining the diaper 1. The following describes a method of manufacturing the diaper 1 in which the stretchable sheet 24 is less likely to curl in the manufacturing step of the diaper 1.
Fig. 4 is a flowchart showing a part of the steps of manufacturing the abdomen-side waist portion 20. Fig. 5 is a schematic view showing a conveyance line (conveyance unit) of the abdomen-side waistline portion 20, and shows the contents of processing performed in the step shown in fig. 4. Fig. 5 includes a side view schematically showing steps in the conveyor line and a plan view of the appearance of the abdominal-side waistline portion 20 (outer-covering continuous sheet 25s) at each step.
In the present embodiment, steps S101 to S104 are performed by the conveying unit shown in fig. 5 while the base sheet (non-stretchable sheet) of the abdomen-side waist portion 20 is conveyed in a predetermined conveying direction at a predetermined conveying speed (conveying step). The "base sheet" of the abdomen-side waist portion 20 is an outer continuous sheet 25s including a plurality of outer layer sheets 22 and a plurality of inner layer sheets 21, and the plurality of outer layer sheets 22 and the plurality of inner layer sheets 21 are connected in the left-right direction of fig. 2 and cover each other in the thickness direction with the linear elastic members 23 interposed therebetween. A manufacturing method of a sheet member having the same structure as the exterior continuous sheet 25s is known, and therefore will not be described here.
Hereinafter, the conveying direction is a direction in which the exterior continuous sheet 25s is conveyed in the left-right direction of fig. 2, and the intersecting direction is a direction intersecting the conveying direction. Note that, in one step in the manufacturing process of the diaper 1, the continuous exterior covering sheet 25s which is continuous in the conveying direction is cut along the intersecting direction (the direction corresponding to the longitudinal direction and the up-down direction of fig. 2), thereby forming the abdominal-side waistline portion 20 (diaper 1) for each product.
First, an adhesion region forming step (S101) is performed in which the adhesion regions 41 are formed by providing an adhesive such as a hot melt adhesive on predetermined regions of the base sheet (exterior continuous sheet 25S) conveyed from the upstream side to the downstream side in the conveying direction by the conveying unit. Note that in this specification, the bonding region 41 is also referred to as a "first bonding region 41" in order to distinguish from a second bonding region 43 described later. The step for forming the first bonding region 41 will also be referred to as "first bonding region forming step (S101)".
Fig. 6 is a schematic sectional view taken along a-a in fig. 5, and shows a state in which a first adhesive region 41 has been formed on the surface of the exterior continuous sheet 25 s. As shown in fig. 5 and 6, the first adhesive region 41 is a substantially rectangular region formed to extend in the conveying direction (left-right direction). An adhesive region forming unit provided above the conveying unit applies the adhesive to the respective rectangular regions of the exterior continuous sheet 25s being conveyed at a substantially uniform basis weight. As shown in fig. 6, the first adhesive region 41 has a predetermined width in the intersecting direction, and has an end 41a on a first side (corresponding to an upper side in the up-down direction in fig. 2) in the intersecting direction and an end 41b on a second side (corresponding to a lower side in the up-down direction in fig. 2). Note that, in fig. 6, the first adhesive region 41 is formed to extend across the first-side end 21a of the inner layer sheet 21 of the outer continuous sheet 25s in the intersecting direction. In other words, the first adhesive region 41 is formed such that the end 21a of the inner layer sheet 21 is located between the end 41a and the end 41b of the first adhesive region 41 in the intersecting direction.
Next, a stretchable sheet joining step (S102) is performed in which the stretchable sheet 24 in a state of being stretched in the conveying direction is joined to the outer continuous sheet 25S by the first adhesive regions 41. In the stretchable sheet joining step performed by the stretchable sheet joining unit, the above-described spunbonded nonwoven fabric sheet or the like in a state of being stretched in the conveying direction by being subjected to an appropriate stretching process such as gear stretching or the like is conveyed. The spunbonded nonwoven fabric sheet and the like are joined to the outer continuous sheet 25s while being joined to the outer continuous sheet 25 s. At this time, the stretchable sheet 24 is joined to the outer continuous sheet 25s by being arranged so as to overlap the region of the outer continuous sheet 25s where the first adhesive region 41 is formed.
Fig. 7 is a schematic sectional view taken along B-B of fig. 5, and shows a state in which the stretchable sheet 24 has been joined to the exterior continuous sheet 25s in the first bonding region 41. In this stretchable sheet joining step, the stretchable sheet 24 is joined such that the first side end 41a of the first adhesive region 41 is located on the first side in the intersecting direction with respect to the first side end 24a of the stretchable sheet 24. Therefore, in step S102, the first side of the first adhesive region 41 in the intersecting direction extends outward (to the first side) beyond the end 24a of the stretchable sheet 24. Therefore, the end 24a of the stretchable sheet 24 is reliably joined to the exterior continuous sheet 25 s.
Fig. 8 is a schematic cross-sectional view of a comparative example in which the stretchable sheet 24 is joined so that the first side end 24a of the stretchable sheet 24 is positioned on the first side in the intersecting direction with respect to the first side end 41a of the first adhesive region 41. In this comparative example, the portion (including the end 24a) of the stretchable sheet 24 extending beyond the first adhesive region 41 on the first side is not joined to the exterior continuous sheet 25 s. In other words, the stretchable sheet 24 has a portion having higher rigidity due to being joined with the exterior continuous sheet 25s, and a portion having lower rigidity due to not being joined with the exterior continuous sheet 25 s. Therefore, when the stretchable sheet 24 is released from the stretched state, the portion having higher rigidity and the portion having lower rigidity undergo different amounts of contraction, and so-called "curling" in which the end region (end 41a) having lower rigidity stands up in the thickness direction and is folded back in the intersecting direction easily occurs.
In fig. 8, the stretchable sheet 24 has a folded portion 241, which is formed as a result of a portion of the first side extending beyond the first adhesive region 41 in the intersecting direction being folded (curled) toward the second side. In the folded portion 241, the stretchable sheet 24 is laminated on itself in the thickness direction, so the stretching force in the conveying direction increases, and there is a risk that: when the diaper 1 is put on, the contractive force around the waistline of the wearer locally increases and the opening BH becomes difficult to open.
In contrast, in the present embodiment, the first side end 24a of the stretchable sheet 24 in the intersecting direction is joined to the exterior continuous sheet 25s, and therefore the curl of the first side end in the intersecting direction is suppressed. Therefore, this suppresses the following: the contractive force in the conveying direction (left-right direction) is raised higher than the design value in the first side end portion (upper end portion in the up-down direction) in the intersecting direction of the abdominal-side waistline portion 20. Therefore, the ease of opening of the waistline opening BH can be maintained when the diaper 1 is worn, and the waistline of the wearer can be prevented from being excessively contracted.
Further, in the stretchable sheet joining step (S102), the stretchable sheet 24 is joined such that the second side end 24b of the stretchable sheet 24 is located on the second side in the intersecting direction with respect to the second side end 41b of the first adhesive region 41. In other words, on the second side in the intersecting direction, the first adhesive region 41 does not extend beyond the end 24b of the stretchable sheet 24. The second side end portion (lower end portion in the up-down direction in fig. 2) of the stretchable sheet 24 in the intersecting direction is a region where: if the configuration of the absorbent main body 10 or the length of the end portion 221 of the outer sheet 22 is changed, this area may be in direct contact with the wearer's skin. Therefore, if the adhesive (first adhesive region 41) extends beyond this region, there is a risk that the adhesive will adhere to the wearer's body. In view of this, in the present embodiment, the stretchable sheet 24 is disposed such that the first adhesive region 41 does not extend beyond the second side end 24b of the stretchable sheet 24, thereby suppressing the adhesive from adhering to the body of the wearer.
Instead, a configuration (not shown) of engaging the stretchable sheet 24 in the following manner is possible: so that the second side end 24b of the stretchable sheet 24 is located on the first side in the intersecting direction with respect to the second side end 41b of the first adhesive region 41. In this case, the first adhesive region 41 extends beyond the end 24b of the stretchable sheet 24 on the second side in the intersecting direction, and according to this configuration, the second-side end portion of the stretchable sheet 24 is less likely to curl, and a situation where the contraction force in the corresponding region rises beyond the design value is suppressed, as with the configuration explained using fig. 8. Note that, in a covering step (S104) or the like described later, the portion of the first adhesive region 41 that extends beyond the end 24b of the stretchable sheet 24 is joined to a different sheet member (e.g., a folded portion of the covering sheet 26 or the outer sheet 22). Therefore, the adhesive contained in the first adhesive region 41 is less likely to be exposed to the outside, and problems such as the adhesive sticking to the skin of the wearer are less likely to occur.
Next, a second adhesive region forming step (S103) is performed in which the second adhesive region 43 is formed by providing an adhesive such as a hot melt adhesive on a predetermined region of the stretchable sheet 24. Fig. 9 is a schematic sectional view taken along C-C in fig. 5, and shows a state where the second adhesive region 43 has been formed on the stretchable sheet 24.
As shown in fig. 9, the second adhesive region 43 is formed by providing an adhesive such as a hot melt adhesive on the surface of the stretchable sheet 24 opposite to the surface that has been joined using the first adhesive region 41. In the present embodiment, the second adhesive region 43 is a substantially strip-shaped (rectangular) region extending in the conveyance direction. Specifically, as shown in fig. 5, the second adhesion area 43 is formed by applying an adhesive in a spiral pattern or an Ω pattern along the conveying direction. Note that the second adhesive region 43 is formed by applying an adhesive to the stretchable sheet 24 (stretchable nonwoven sheet), and if the application range of the adhesive is too wide, there is a risk that the adhesive oozes out to the opposite surface of the stretchable nonwoven sheet because the surface density of the stretchable nonwoven sheet is not uniform. In view of this, since the adhesive is applied in a spiral pattern or the like along the conveying direction, the adhesive is provided only in a limited region of the stretchable nonwoven fabric sheet.
Further, in the second adhesion region forming step (S103), the second adhesion region 43 is formed as follows: so that the first side end 43a of the second adhesive region 43 in the intersecting direction is located on the second side in the intersecting direction with respect to the first side end 24a of the stretchable sheet 24. In other words, the adhesive is applied so as not to extend outside the first side end 24a of the stretchable sheet 24. As described above, the first adhesive region 41 is formed to extend to the outside of the first side end 24a of the stretchable sheet 24. Therefore, if the second adhesive region 43 is further formed to extend beyond the first side end 24a of the stretchable sheet 24, the first adhesive region 41 and the second adhesive region 43 overlap each other in the region of the first side in the intersecting direction with respect to the first side end 24a, and there is a risk of the adhesive agent being excessive in this region. In this case, the adhesive may penetrate into the abdomen-side waist portion 20, and the nonwoven fabric may be hardened, which causes discomfort to the wearer. In view of this, in the present embodiment, the second adhesive region 43 is formed so as not to extend outside the end 24a of the stretchable sheet 24, thereby suppressing bleeding of the adhesive or the like.
Further, the second adhesion region 43 is formed in the following manner: so that the basis weight of the adhesive in the portion of the second adhesive region 43 to which the adhesive has been applied is larger than the basis weight of the adhesive in the portion of the first adhesive region 41 to which the adhesive has been applied. Note that, in the region of the second adhesive region 43 shown by hatching in fig. 9, the portion of the second adhesive region 43 to which the adhesive has been applied is a portion to which the adhesive is actually applied in a spiral pattern or the like along the conveying direction. On the other hand, the portion of the first adhesive region 41 to which the adhesive has been applied is the entire first adhesive region 41 shown by hatching in fig. 6.
The second bonding region 43 is formed to bond the sheet member (e.g., the outer sheet 22) in the next step (S104). The sheet member is a member disposed closest to the skin of the wearer when the diaper 1 is worn. Therefore, there is a risk that: the sheet member and the stretchable sheet 24 are separated due to the influence of an external force such as a frictional force generated with the skin of the wearer. In view of this, in the present embodiment, the basis weight of the adhesive provided in the second adhesive region 43 is increased to locally improve the joining strength and suppress the separation of the sheet member. On the other hand, since the adhesive is provided substantially uniformly over a wide range of the first adhesive region 41, a sufficient bonding strength can be secured over the entire first adhesive region 41 even if the basis weight is low.
Next, a covering step is performed in which the elastic sheet 24 is covered on the skin side in the thickness direction by joining a predetermined sheet member to the elastic sheet 24 with the first adhesive region 41 and the second adhesive region 43 (S104). In the present embodiment, the outer layer sheet 22 constituting the exterior continuous sheet 25s is used as a predetermined sheet member.
Fig. 10 is a schematic sectional view taken along D-D in fig. 5, and shows a state in which the stretchable sheet 24 is covered with the outer sheet 22. As shown in fig. 6 to 9, the outer layer sheet 22 (outer continuous sheet 25s) has a portion (end portion 221) protruding toward the first side in the intersecting direction with respect to the first side end 41a of the first bonding region 41. In this step (S104), the end portion 221 of the outer sheet 22 protruding to the first side in the intersecting direction is folded toward the second side in the intersecting direction at a predetermined position F1 in the intersecting direction, and the folded end portion 221 covers the stretchable sheet 24 on the skin side (upper side in fig. 10). Note that the predetermined position F1 is any position on the first side in the intersecting direction with respect to the first side end 24a of the stretchable sheet 24. In fig. 10, the predetermined position F1 is substantially the same position as the first side end 41a of the first adhesive region 41.
The folded end portion 221 of the outer sheet 22 is joined to a portion of the first adhesive region 41 that extends beyond the first side end 24a of the stretchable sheet 24 toward the first side in the intersecting direction. In other words, the two portions of the outer sheet 22 are joined together by a portion of the first adhesive region 41. Therefore, this suppresses the folded end portion 221 from returning to its original state. Further, the entire area of the first adhesive region 41 in the intersecting direction is covered with any one or more sheet members (see fig. 10), and the adhesive forming the first adhesive region 41 is not exposed to the outside, and therefore, a situation where the adhesive adheres to the skin of the wearer or other members (e.g., the waist body portion 30 or the absorbent main body 10, etc.) is suppressed.
Note that the predetermined position F1 is a position corresponding to the upper end of the abdominal-side waistline portion 20 (see fig. 3). In the present embodiment, the outer layer sheet 22 is folded at the predetermined position F1, thereby suppressing the adhesive forming the first adhesive region 41 from moving to a position on the first side in the intersecting direction with respect to the predetermined position F1. In other words, this suppresses the adhesive from extending beyond the upper end of the abdomen-side waist portion 20 when the diaper 1 is in the pants-type state. Therefore, the wearer is less likely to feel discomfort.
Further, the folded end portion 221 of the outer sheet 22 is joined to the second adhesive region 43. As described above, in the second adhesive region 43, the basis weight of the adhesive is set high so that the bonding strength at the time of bonding the end portions 221 can be improved. Therefore, the folded end portion 221 is reliably fixed in a state of being covered on the stretchable sheet 24, and the folded end portion 221 is suppressed from returning to its original state.
At this time, the end 221a of the folded end portion 221 (i.e., the free end of the folded end portion 221) is located on the second side in the intersecting direction with respect to the second side end 43b of the second adhesive region 43. Therefore, the entire second adhesive region 43 is covered by the end portion 221, and the adhesive is less likely to extend beyond the end portion 221. Also, the adhesive does not adhere to the end 221a, so the area near the end 221a is a so-called dry edge and remains soft. Therefore, the diaper 1 has a good texture when worn.
After step S104, a step of joining the absorbent main body 10, a step of cutting the exterior continuous sheet 25S, and the like are performed, thereby completing the diaper 1. Note that the step of joining the absorbent main body 10 to the exterior continuous sheet 25S may be performed between step S103 and step S104.
< modification >
In the covering step S104 in the above embodiment, the stretchable sheet 24 is covered on the skin side by the outer sheet 22 folded at the predetermined position F1 in the intersecting direction, but a modification is possible in which the stretchable sheet 24 is covered by another sheet member. Fig. 11 is a schematic sectional view of a modification of step S104.
In this modification, the outer sheet 22 is not folded, but a cover sheet 26 as a non-stretchable sheet is provided. The covering sheet 26 may be formed of the same material as the outer sheet 22 (e.g., an SMS nonwoven sheet). The first side end 26a of the cover sheet 26 is located on the first side at least with respect to the first side end 41a of the first bonded region 41 in the intersecting direction. Also, the second side end 26b of the cover sheet 26 is located on the second side at least with respect to the second side end 43b of the second adhesive region 43 in the intersecting direction. The cover sheet 26 is joined to a portion of the first adhesive region 41 that extends to the first side beyond the first side end 24a of the stretchable sheet 24 in the intersecting direction, and is joined to the second adhesive region 43.
According to this modification, the adhesive is not exposed to the outside, and therefore the adhesive is less likely to adhere to the skin or other members of the wearer, and therefore the step of folding the outer sheet 22 can be omitted. In addition, the size and configuration of the cover sheet 26 may be freely varied, thereby enabling diapers of various designs and sizes to be readily manufactured.
In other embodiments, the term "a" or "an" is used.
Although the embodiments of the present invention have been described above, the above embodiments of the present invention are only for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the present invention in any way. Various changes or modifications may be made to the invention without departing from the spirit thereof, and the invention encompasses equivalents thereof.
For example, the stretchable sheet 24 is not limited to be provided in the upper end portion of the abdomen-side waistline portion 20. The stretchable sheet 24 may be provided at any position in the abdominal-side waistline portion 20 in the up-down direction. In addition, the following configuration is possible: the back-side waistline portion 30 (first waistline portion) may have an elastic sheet, and the abdomen-side waistline portion 20 (second waistline portion) may not have an elastic sheet, or both the abdomen-side waistline portion 20 and the back-side waistline portion 30 may have an elastic sheet 24.
In addition, although the so-called three-piece type disposable diaper including the abdomen-side waist portion 20, the back-side waist portion 30, and the absorbent main body 10 is described as the pants-type absorbent article in the above-described embodiment, the present invention is not limited thereto. For example, a diaper in which the outer sheet 14 integrally connects the abdomen-side waist portion 20 and the back-side waist portion 30 (so-called two-piece diaper) may be used.
Description of the reference numerals
1 diaper (absorbent article), 2 joining region,
10 an absorbent body, 11 an absorbent body,
An 11A absorbent core, an 11B core wrapping sheet,
12 front surface pieces, 13 back surface pieces,
14 outer layer sheets, 15 leg elastic members,
20 a ventral-side waist part (first waist part),
21 an inner layer sheet (non-stretchable sheet), 21a end (first side),
22 outer layer sheet (non-stretchable sheet), 221 end portion,
23 a linear elastic member, 24a stretchable sheet, 24a end (first side), 24b end (second side),
241 a folded part,
25s of outer continuous sheet,
26 covering the sheet, 26a end (first side), 26b end (second side),
30 back waist part (second waist part), 31 inner layer sheet,
32 outer layer sheets, 33 linear elastic members,
41 bonding region (first bonding region), 41a end (first side), 41b end (second side),
43 second adhesive area, 43a end (first side), 43b end (second side)
Claims (10)
1. A method for manufacturing an absorbent article having an absorbent main body and a first waist section,
the method comprises the following steps:
a conveying step of conveying a non-stretchable sheet as a constituent member of the first waist section in a conveying direction;
an adhesive region forming step of forming an adhesive region by providing an adhesive on a predetermined region of the non-stretchable sheet being conveyed; and
a stretchable sheet joining step of joining a stretchable sheet stretched in the conveyance direction to the non-stretchable sheet by the adhesive region,
in the stretchable sheet joining step, the stretchable sheet is joined to the base sheet,
the stretchable sheet is joined as follows: such that a first side end of the bonding region on a first side in an intersecting direction, which is a direction intersecting the conveying direction, is located on the first side with respect to a first side end of the stretchable sheet.
2. The method of manufacturing an absorbent article according to claim 1,
after the stretch sheet joining step is performed,
a predetermined sheet member is joined to a portion of the bonded region that extends beyond a first side end of the stretchable sheet toward the first side in the intersecting direction.
3. The method of manufacturing an absorbent article according to claim 2,
the predetermined sheet member is a portion of the non-stretchable sheet that has been folded toward the second side of the intersecting direction at a predetermined position that is located on the first side in the intersecting direction with respect to the first side end of the stretchable sheet.
4. The method of manufacturing an absorbent article according to claim 3,
the method further comprises a second adhesive region forming step after the stretch sheet joining step,
the second adhesive region forming step is a step of forming a second adhesive region by providing the adhesive on a predetermined region of the surface of the stretchable sheet,
the surface of the stretchable sheet is a surface on the opposite side to the surface to which the adhesive region has been attached,
the folded portion of the non-stretch sheet is joined to the stretch sheet with the second adhesive region.
5. The method of manufacturing an absorbent article according to claim 4,
the average basis weight of the portions of the second adhesive regions where the adhesive is disposed is greater than the average basis weight of the portions of the adhesive regions where the adhesive is disposed.
6. The method of manufacturing an absorbent article according to claim 4 or 5,
a first side end of the second adhesive region on a first side in the intersecting direction is located on the second side with respect to a first side end of the stretchable sheet.
7. The method of manufacturing an absorbent article according to any one of claims 4 to 6,
a second side end of the portion of the non-stretchable sheet that has been folded is located on the second side with respect to a second side end of the second adhesive region, on the second side in the intersecting direction.
8. The method of manufacturing an absorbent article according to any one of claims 1 to 7,
in the stretchable sheet joining step, the stretchable sheet is joined to the base sheet,
joining the stretchable sheet in the following manner: such that a second side end of a second side of the stretchable sheet in the intersecting direction is located on the second side relative to a second side end of the adhesive region.
9. The method of manufacturing an absorbent article according to any one of claims 1 to 7,
in the stretchable sheet joining step, the stretchable sheet is joined to the base sheet,
joining the stretchable sheet in the following manner: such that a second side end of a second side of the stretchable sheet in the intersecting direction is located on the first side with respect to a second side end of the adhesive region.
10. An apparatus for manufacturing an absorbent article having an absorbent main body and a first waist section,
the device comprises:
a conveying unit configured to convey a non-stretchable sheet as a constituent member of the first waist body portion in a conveying direction;
an adhesive region forming unit configured to form an adhesive region by providing an adhesive on a predetermined region of the conveyed non-stretchable sheet; and
a stretchable sheet joining unit configured to join a stretchable sheet in a state of being stretched in the conveying direction to the non-stretchable sheet using the adhesive region,
the stretchable sheet joining unit performs joining of the stretchable sheet as follows: such that a first side end of the bonding region on a first side in an intersecting direction, which is a direction intersecting the conveying direction, is located on the first side with respect to a first side end of the stretchable sheet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017254937A JP7107680B2 (en) | 2017-12-28 | 2017-12-28 | Absorbent article manufacturing method and absorbent article manufacturing apparatus |
| JP2017-254937 | 2017-12-28 | ||
| PCT/JP2018/045073 WO2019131057A1 (en) | 2017-12-28 | 2018-12-07 | Manufacturing method of absorbent article, and manufacturing device of absorbent particle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111526844A true CN111526844A (en) | 2020-08-11 |
| CN111526844B CN111526844B (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880084014.2A Active CN111526844B (en) | 2017-12-28 | 2018-12-07 | Method for manufacturing absorbent article and apparatus for manufacturing absorbent article |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7107680B2 (en) |
| CN (1) | CN111526844B (en) |
| WO (1) | WO2019131057A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022508A (en) * | 2020-09-29 | 2020-12-04 | 泉州市嘉佰利卫生材料有限公司 | Preparation method of comfortable anti-frail pull-up pants |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008228835A (en) * | 2007-03-16 | 2008-10-02 | Kao Corp | Disposable diaper |
| CN101453973A (en) * | 2006-05-25 | 2009-06-10 | 花王株式会社 | Pants type disposable diaper |
| CN101999965A (en) * | 2009-08-31 | 2011-04-06 | 大王制纸株式会社 | Separately-wrapped absorbency product |
| CN102686198A (en) * | 2009-12-28 | 2012-09-19 | 尤妮佳股份有限公司 | Disposable wearing article |
| CN103079514A (en) * | 2010-08-31 | 2013-05-01 | 尤妮佳股份有限公司 | Disposable wearing article |
| WO2013161957A1 (en) * | 2012-04-27 | 2013-10-31 | ユニ・チャーム株式会社 | Disposable diaper and method for producing disposable diaper |
| WO2017056807A1 (en) * | 2015-09-30 | 2017-04-06 | 大王製紙株式会社 | Pants-type disposable diaper |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5999790B1 (en) * | 2015-03-27 | 2016-09-28 | 大王製紙株式会社 | Pants-type disposable diaper |
| JP2016154654A (en) * | 2015-02-24 | 2016-09-01 | 日本製紙クレシア株式会社 | Underpants type absorbent article |
| EA038172B1 (en) * | 2016-03-01 | 2021-07-19 | Юничарм Корпорейшн | Pull-on absorbent article |
-
2017
- 2017-12-28 JP JP2017254937A patent/JP7107680B2/en active Active
-
2018
- 2018-12-07 WO PCT/JP2018/045073 patent/WO2019131057A1/en active Application Filing
- 2018-12-07 CN CN201880084014.2A patent/CN111526844B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453973A (en) * | 2006-05-25 | 2009-06-10 | 花王株式会社 | Pants type disposable diaper |
| JP2008228835A (en) * | 2007-03-16 | 2008-10-02 | Kao Corp | Disposable diaper |
| CN101999965A (en) * | 2009-08-31 | 2011-04-06 | 大王制纸株式会社 | Separately-wrapped absorbency product |
| CN102686198A (en) * | 2009-12-28 | 2012-09-19 | 尤妮佳股份有限公司 | Disposable wearing article |
| CN103079514A (en) * | 2010-08-31 | 2013-05-01 | 尤妮佳股份有限公司 | Disposable wearing article |
| WO2013161957A1 (en) * | 2012-04-27 | 2013-10-31 | ユニ・チャーム株式会社 | Disposable diaper and method for producing disposable diaper |
| WO2017056807A1 (en) * | 2015-09-30 | 2017-04-06 | 大王製紙株式会社 | Pants-type disposable diaper |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022508A (en) * | 2020-09-29 | 2020-12-04 | 泉州市嘉佰利卫生材料有限公司 | Preparation method of comfortable anti-frail pull-up pants |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019131057A1 (en) | 2019-07-04 |
| RU2020121410A3 (en) | 2022-01-28 |
| JP7107680B2 (en) | 2022-07-27 |
| RU2020121410A (en) | 2022-01-28 |
| CN111526844B (en) | 2022-04-22 |
| JP2019118552A (en) | 2019-07-22 |
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