CN107920942A - Absorbent commodity - Google Patents

Absorbent commodity Download PDF

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Publication number
CN107920942A
CN107920942A CN201680049921.4A CN201680049921A CN107920942A CN 107920942 A CN107920942 A CN 107920942A CN 201680049921 A CN201680049921 A CN 201680049921A CN 107920942 A CN107920942 A CN 107920942A
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China
Prior art keywords
strip matrix
matrix part
water
absorber
absorbent commodity
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Granted
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CN201680049921.4A
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Chinese (zh)
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CN107920942B (en
Inventor
恩田蓝子
蔵前亮太
梶原顺
松田昂平
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Kao Corp
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Kao Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/531Absorbent 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 absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532Absorbent 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 absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

Absorbent commodity (10) includes with multiple absorbability units (4) including strip matrix part (2) and water-absorbing polymeric particles (3), makes the absorber (1) that respectively the absorbability unit (4) is arranged and formed in a manner of its longitudinal direction (Y) is at least towards a direction.Water-absorbing polymeric particles (3) are fixed with both the skin opposite face of strip matrix part (2) and non-skin opposite face.Before water-absorbing polymeric particles (3) absorb liquid, the particle (3) is not protruded above to the side edge part (2s) more than strip matrix part (2) in transverse direction (X), and after the particle (3) absorbs liquid, the particle (3) is non-swelling extremely to exceed the side edge part (2s).

Description

Absorbent commodity
Technical field
The present invention relates to absorbent commodity.
Background technology
Turned to the slim of absorber used in the absorbent commodities such as disposable diaper, sanitary napkin, incontinence pad Purpose, it is proposed that the various schemes for reducing the usage amount of the hydrophilic fibre of paper pulp fiber etc. used in existing absorber. Such as describe in patent document 1, as the absorber of absorbent commodity, using in the ventilation including non-woven fabrics, mesh The upper and lower surface of property layer is respectively arranged with the water absorbent sheet of the absorbed layer containing water-absorbing resins and bonding agent.
It is different from the technology, it is also known that absorber used in absorbent commodity is imposed and is referred to as the narrow of slot etc. Joint-cutting, to improve the technology of the performance of absorber.Such as describe in patent document be included in excretory portion counterpart have with The absorbent commodity of the absorber of excretory portion gap zone of the dispersity formed with the vertical slot along longitudinal direction.According to the document, The absorbent commodity can improve wearing feeling.
In patent document 3, record and be arranged with more than 4 rows on longitudinal direction or transverse direction including being provided with spaced intervals Slot absorber sanitary napkin.According to the document, the absorber of the sanitary napkin can be deformed easily, separately Outside, because the rigidity of absorber is relaxed because of slot, liquid leakage can be reduced and mitigate foreign body sensation.
Prior art literature
Patent document
Patent document 1:No. 2011/43256 pamphlet of International Publication No.
Patent document 2:(Japan) special open 2015-42244 publications
Patent document 3:(Japan) opens clear 63-18122 publications in fact
The content of the invention
Problems to be solved by the invention
Technology according to described in patent document 1 can carry out the slimming of absorber, but its adverse side effects is, if absorbing Body absorbs liquid and water absorbent polymer is swollen, then it some times happens that therefore caused gel blocks, and hinders more liquid Absorption.Particularly, as described in the document, the following topics exist:In the absorptive capacity to ensure liquid as mesh And when the upper and lower surface of piece is configured with water absorbent polymer, it is solidifying due to occurring in the water absorbent polymer positioned at upper surface side Glue blocks, and makes liquid be difficult to reach the water absorbent polymer positioned at lower face side, and then can not efficiently use positioned at lower surface Water absorbent polymer water absorbing properties.Also have in described technology in patent document 2 and 3 and asking for gel closure occurs Topic.
A technical solution to solve project
The present invention provides a kind of absorbent commodity, it includes the absorber with multiple absorbability units, the absorbability list Member includes:With laterally, with this laterally compared with the strip matrix part of the longer longitudinal direction of length and thickness direction;Be fixed on this The water-absorbing polymeric particles on the surface of strip matrix part, in the absorber, respectively the absorbability unit is longitudinally oriented with it The mode at least one direction arranges.
The surface both skin opposite face and non-skin opposite face in the strip matrix part is fixed with described Water-absorbing polymeric particles.
Before the water-absorbing polymeric particles absorb liquid, which is not protruding to super in the horizontal Cross the strip matrix part along longitudinal side edge part, and the water-absorbing polymeric particles absorb liquid after, the suction Polymerizable aqueous composition granule it is non-swelling to exceed the strip matrix part along longitudinal side edge part.
In addition, one of the preferable production process of the present invention as the absorbent commodity, there is provided a kind of absorbent commodity Manufacture method, it includes the following steps:Table in a face of the substrate sheets of transported strip matrix part in one direction Face, multiple position adhesive-applyings separated by a distance in its transverse direction,
Make the substrate sheets in the strip matrix part of the surface in one face coated with the bonding agent along institute In the state of stating conveying direction conveying, one face coated with the bonding agent in the substrate sheets of the strip matrix part Surface, water-absorbing polymeric particles are spread in its horizontal whole region,
In the state of the substrate sheets of the strip matrix part is conveyed along the conveying direction, in the strip base The surface in another face of the substrate sheets in body portion, multiple position adhesive-applyings separated by a distance in its transverse direction,
Make on the substrate sheets edge of the strip matrix part of the surface in another face coated with the bonding agent In the state of conveying direction conveying, in the substrate sheets of the strip matrix part coated with described in the bonding agent another The surface in face, water-absorbing polymeric particles are spread in its horizontal whole region,
Make to be scattered with the substrate sheets of the strip matrix part of the water-absorbing polymeric particles in each face described in In the state of conveying direction conveying, the uncoated position between the position coated with the bonding agent, applies along the conveying direction Notch, obtains narrow multiple strip matrix parts, and manufactures absorber.
Brief description of the drawings
Fig. 1 is the schematic diagram in the section transversely for an embodiment for representing the absorbent commodity of the present invention.
Fig. 2 is the stereogram of the absorber in the absorbent commodity shown in Fig. 1.
Fig. 3 is to represent that absorbent commodity shown in Fig. 1 absorbs liquid and the particle of water absorbent polymer is swollen The schematic diagram in the section transversely of state.
Fig. 4 is the skeleton diagram of an embodiment of the manufacture device for representing the absorbent commodity shown in Fig. 1.
Fig. 5 is the approximate three-dimensional map of substrate sheets cutting part possessed by manufacture device shown in Fig. 4.
Fig. 6 is that the skeleton diagram of the another embodiment for the manufacture device for representing the absorbent commodity shown in Fig. 1 (corresponds to The figure of Fig. 4).
Fig. 7 is that the stereogram of the other embodiment of the absorber in the absorbent commodity for represent the present invention (corresponds to Fig. 2 Figure).
Embodiment
The present invention relates to the improvement of the absorber in absorbent commodity, more specifically, is related to including that can prevent because inhaling The absorption for the absorber that permeability, the diffusivity of liquid caused by the gel closure of waterborne polymeric in absorber decline Property article.
Below based on embodiment preferred for this invention, the present invention will be described.The absorbent commodity of the present invention is general Be in order to absorb keep urine, menses etc. discharged body fluids and the article that uses.Absorbent commodity include such as disposable diaper, Sanitary napkin and incontinence pad etc., but these articles are not limited to, its liquid for widely including absorbing from human body discharge is made Article.
There is the absorber of liquid retainability for absorbent commodity typical case, be configured at the skin of the absorber with respect to surface side Positive dough sheet and be configured at back sheet of the non-skin with respect to surface side of the absorber.Can be without special as positive dough sheet and back sheet Limitation ground uses commonly used material in the technical field.Such as positive dough sheet, can use implement hydrophilicity-imparting treatment Various non-woven fabrics, the sheet material of the liquid permeability such as perforated film.In addition, as back sheet, can use thermoplastic resin film, The sheet material of the liquid permeabilities such as the laminate of the film and non-woven fabrics or water-repellancy.Back sheet can also have water vapo(u)r transmission.Separately Outside, absorbent commodity can also further comprise the various parts for meeting the particular use of the absorbent commodity.This base part is Known to those skilled in the art.Such as when absorbent commodity is suitable for disposable diaper, sanitary napkin, can be in positive dough sheet On the configuration of left and right sides portion is a pair of or more than two pairs of leakage-proof turnups.In addition, in absorbent commodity, can also be in absorber Skin opposite face and at least one party of non-skin opposite face configure so-called secondary synusia.Secondary synusia refers in absorber and front The piece of the liquid permeability configured between piece or between absorber and back sheet.
Section transversely for an embodiment for representing the absorbent commodity of the present invention is schematically illustrated in Fig. 1 Face.In addition, in the case of without especially indicating, the following description is saying based on the state before absorbent commodity absorption liquid It is bright.Absorbent commodity 10 shown in the figure includes absorber 1.In the skin of absorber 1 positive dough sheet 11 is configured with respect to surface side.Separately On the one hand, in the non-skin of absorber 1 back sheet 12 is configured with respect to surface side.Fig. 2 is in the absorbent commodity 10 shown in Fig. 1 The stereogram of absorber 1.
Absorber 1 has multiple absorbability units 4, which includes:It is laterally longer than this with transverse direction, length Longitudinal direction and thickness direction strip matrix part 2;With the water-absorbing polymeric particles on the surface of being fixed on strip matrix part 2 3 (hereinafter also referred to " water absorbent polymer 3 "), absorber 1 by by each absorbability unit 4 with its longitudinal direction at least towards a side To mode arrange and formed.In the following description, laterally represented with X, longitudinal direction represents that thickness direction is represented with Z with Y.It is horizontal It is mutually orthogonal to X, longitudinal direction Y and thickness direction Z.Horizontal X, the longitudinal direction Y and thickness direction Z and absorbability list of strip matrix part 2 Horizontal X, the longitudinal direction Y and thickness direction Z of member 4 are consistent, in the present embodiment as shown in Fig. 2, horizontal X, longitudinal direction with absorber 1 Y and thickness direction Z are also consistent.In addition, the anteroposterior direction of longitudinal Y of absorber 1 and wearer during wearing absorbent commodity 10 Unanimously.
As shown in Fig. 2, absorber 1 by longitudinal Y of absorbability unit 4 towards arranging in a manner of longitudinal Y of absorber 1 Multiple absorbability units 4 and formed.From the viewpoint of absorbability unit 4 is easily mobile, the phase on the horizontal X of absorber 1 Become the state there is no intermediate between adjacent absorbability unit 4,4.For example, each absorbability unit 4 becomes not middle The state that thing surrounds.
The absorbability unit 4 of absorber 1 is formed as rectangle longer on longitudinal Y.The length of the horizontal X of absorbability unit 4 Degree Lx is preferably more than 0.3mm and below 10mm, more preferably more than 0.6mm and below 2.0mm, more preferably 0.6mm Above and below 1.8mm.The length Ly of longitudinal Y of absorbability unit 4 relative to horizontal X length Lx, be preferably more than 2 times and Less than 3500 times, more preferably more than 100 times and less than 700 times.As the condition for meeting the multiplying power, absorbability unit 4 is indulged It is preferably more than 20mm and below 1000mm, more preferably more than 200mm and below 400mm to the length Ly of Y.Thus absorbability Unit 4 is in elongated shape.
In the present embodiment, water-absorbing polymeric particles 3 are fixed with the side edge part of strip matrix part, therefore, inhaled The length Lx of the horizontal X of the property received unit 4 is preferably 0 μm relative to the magnitude relationship of strip matrix part width W2<(Lx-W2)< 1400 μm, more preferably 200 μm<(Lx-W2)<1000μm.
In the present embodiment, rectangle longer on longitudinal Y is formed as in the state of absorber 1 before use.Absorb The length of longitudinal Y of body 1 is the degree of more than 100mm below 1000mm, and the length of horizontal X is more than 50mm below 300mm's Degree.
Though not illustrating, absorber 1 can also have clad sheet.Clad sheet is preferably to coat at least towards a side Configured at least one of mode of the absorbability unit 4 of arrangement.The sheet material with liquid permeability can be used as clad sheet. It can be enumerated such as paper, hydrophilic non-woven fabrics as such a sheet material.
Absorber 1 have by least facing one direction in a manner of be arranged with the absorption region AT of multiple absorbability units 4. Absorber 1 including absorption region AT is at least configured at position corresponding with the excretory portion of wearer in absorbent commodity 10. From the viewpoint of liquid is easy to absorption in the region for being fixed with water-absorbing polymeric particles 3, when overlooking absorber 1, inhale The area of receipts region AT is preferably more than 20% relative to the ratio of the entire area of the absorber 1, and more preferably more than 50%, Also, preferably less than 100%, more preferably less than 90%.Specifically, it is preferably more than 20% and less than 100%, it is more excellent Elect more than 50% and less than 90% as.The ratio of absorption region AT refers to for 100%, such as with longitudinal Y of absorbability unit 4 Towards absorber 1 longitudinal Y mode in the multiple absorbability units 4 of spread configuration on the horizontal X of absorber 1, it is meant that The form of absorbability unit 4 is configured with whole region between the both ends of longitudinal Y of absorber 1.At this time, absorbability Unit 4 becomes in a manner of its longitudinal direction Y is towards longitudinal Y of absorbent commodity 10, throughout the whole area of longitudinal Y of absorption region AT The state of domain arrangement.Or as be described hereinafter shown in Fig. 7, with longitudinal Y of absorbability unit 4 towards the side of the horizontal X of absorber 1 Formula, in the multiple absorbability units 4 of spread configuration on longitudinal Y of absorber 1, it is meant that throughout absorber 1 along the two of longitudinal Y Whole region between sidepiece is configured with the form of absorbability unit 4.In addition, when overlooking absorber 1, except absorption region AT with Outer region becomes non-gap zone NT described later.
By make longitudinal Y of absorbability unit 4 towards absorber 1 longitudinal Y in a manner of configure when, absorbability unit 4 is excellent Elect as and more than 3 be configured with every absorber, be more preferably configured with more than 50, also, be preferable configured with 1000 with Under, more preferably it is configured with less than 500.Specifically, more than 3 and less than 1000 are preferably configured, is more preferably configured More than 50 and less than 500.In addition, by make longitudinal Y of absorbability unit 4 towards absorber 1 horizontal X in a manner of configure When, absorbability unit 4 is preferably to be configured with more than 3 in every absorber, is more preferably configured with more than 50, also, preferably Less than 3500 are configured with, is more preferably configured with less than 2000.Specifically, preferably configure more than 3 and 3500 with Under, more preferably configure more than 50 and less than 2000.The method of counting of absorbability unit 4 is defined as follows:Draw on horizontal X During straight line, the number when number of the absorbability unit intersected with the straight line is maximum.
From the viewpoint of being readily delivered during manufacture, absorber 1 is preferably to be absorbed with longitudinal Y directions of absorbability unit 4 The mode of longitudinal Y of body 1 is configured with multiple forms.Particularly preferred multiple absorbability units 4 are matched somebody with somebody in a manner of mutually Uncrossed Put.Absorber 1 shown in Fig. 1 is formed as follows:Use the absorbability of multiple strip matrix parts 2 with clean width Unit 4, the absorbability unit 4 is configured in a manner of longitudinal Y of absorbability unit 4 is towards longitudinal Y of absorber 1.
Absorber 1 preferably exists at the both ends of longitudinal Y or along the both sides of longitudinal Y including multiple strip matrix parts 2 The non-gap zone NT being connected on horizontal X.Such as absorber 1 at the both ends of longitudinal Y including transversely X as shown in Fig. 2, extend Non- gap zone NT.That is, in the absorber 1 of present embodiment, there are a substrate sheets 20, in the longitudinal direction of the substrate sheets 20 The both ends of Y are provided with non-gap zone NT, are provided with aftermentioned cutting step between the non-gap zone NT and are formed Multiple strip matrix parts 2.When such a non-gap zone NT is set, following advantageous effect can be obtained:Before use In state, the plate shape of absorber 1 is easy to be maintained, and structure is not easy at random, and is readily delivered during fabrication.It is preferred that in non-gap Water-absorbing polymeric particles 3 are not configured in seam region NT.In other words, absorber is not preferably matched somebody with somebody in the end regions of its longitudinal direction Y Put water-absorbing polymeric particles 3.If water-absorbing polymeric particles 3 are not configured in non-gap zone NT, even if absorber 1 Liquid is absorbed, non-gap zone NT will not be influenced be subject to being deformed caused by the swelling because of water-absorbing polymeric particles 3, Therefore, even if in state after swelling, the plate shape of absorber 1 is also easy to be maintained, and structure is not easy at random.At the same time, In the region for being configured with water-absorbing polymeric particles 3, liquid is easily absorbed.As a result, obtain the entirety appearance in absorber 1 The advantages of easily obtaining balance of the liquid-absorbent with maintaining both plate shapes.Particularly, the longitudinal direction in strip matrix part 2 When the both ends region of Y is configured without water-absorbing polymeric particles 3, above-mentioned favourable various effects can be more notable therefore excellent Choosing.Herein, the state after swelling refers to, by absorber 1 temperature adjustment to 25 DEG C physiological saline (0.9 mass % aqueous sodium chlorides Liquid) in dipping water-absorbing polymeric particles after sixty minutes state.
Absorber 1 as shown in Figure 2 is such, includes the non-gap zone NT of transversely X extensions in the end regions of longitudinal Y When, the end regions of longitudinal Y in absorber 1, particularly both ends region are preferably fixed to form appointing for absorbent commodity 10 Meaning component.The reason for this is that be easy to maintain the plate shape of absorber 1, structure is not easy at random, and the pliability of absorption region AT carries Height, is not easy to bring sense of discomfort to wearer.The component is the component in the adjoining of skin opposite surface side with absorber 1, either With absorber 1 the adjoining of non-skin opposite surface side component, the component preferably abutted with absorber 1 in the opposite surface side of skin and In non-skin with respect to both components of surface side adjoining.As such a component, such as in skin positive dough sheet can be enumerated with respect to surface side 11 either either both can enumerate back sheet 12 or secondary synusia or both with respect to surface side to secondary synusia in non-skin. In addition, when absorber 1 includes clad sheet, which is fixed on other components and refers to, absorbability unit 4 is fixed in bag Chip, and clad sheet is fixed in other components.At this time, the fixed position F1 and clad sheet of absorbability unit 4 and clad sheet Fixed position F2 with other components can be identical position, or can also be different positions.
Absorber 1 formed with form its absorbability unit 4 position, preferably the absorbability unit 4 with skin phase Opposite side abuts with absorbability unit 4 other with other components that absorbability unit 4 abuts or in the opposite surface side of non-skin Component is disengaged condition.Such as absorbability unit 4 is disengaged condition with other components in the adjoining of non-skin opposite surface side When, the liquid come by aftermentioned gap S transmissions becomes prone to the non-skin opposite face side diffusion in absorbability unit 4.Its result It is that the non-skin positioned at absorbability unit 4 is improved with respect to the utilization rate of the water-absorbing polymeric particles 3 of surface side.If in addition, absorb Property unit 4 with other components in the adjoining of skin opposite surface side be disengaged condition, and with the opposite surface side adjoining of non-skin Other components be disengaged condition, then absorb liquid after being swollen in water-absorbing polymeric particles 3, absorbability unit 4 becomes It is easy to through-thickness Z movements.This is in terms of the liquid diffusibility in improving absorber 1, the flexibility side of raising absorber 1 Face is favourable.
As shown in Figure 1, in absorber 1, two of skin opposite face and non-skin opposite face in strip matrix part 2 Person is fixed with water-absorbing polymeric particles 3.The face opposite with positive dough sheet 11 and and back sheet i.e. in strip matrix part 2 Both 12 opposite faces are fixed with water-absorbing polymeric particles 3.The side of strip matrix part 2 is preferably that water imbibition is not present The state of polymer beads 3 or the state without fixed water-absorbing polymeric particles 3.In addition, state before absorbing liquid Absorber 1 in, as shown in the drawing, form the 2 mutual position of strip matrix part of adjacent absorbability unit 4 in thickness side It is roughly the same on to Z.That is, each strip matrix part 2 is located substantially on same plane.
In absorber 1, when observing the absorber 1 along longitudinal Y, in the arbitrary position water absorbent polymer of longitudinal Y Particle 3 substantially evenly exists.Likewise, when transversely X observes absorber 1, in the arbitrary position water imbibition of horizontal X Polymer beads 3 substantially evenly exist.Thus, in absorber 1, in the X-Y plane including longitudinal Y and transverse direction X, inhale Polymerizable aqueous composition granule 3 substantially evenly exists., can be along horizontal stroke instead of the existing forms of such a water-absorbing polymeric particles 3 When observing absorber 1 to X, difference is set to the grammes per square metre of water absorbent polymer 3 in middle section and lateral region.Such as it can make The grammes per square metre of the water absorbent polymer 3 of middle section is higher than the grammes per square metre of the water absorbent polymer 3 of lateral region.In turn, also can Make the grammes per square metre of the water absorbent polymer 3 of middle section lower than the grammes per square metre of the water absorbent polymer 3 of lateral region.At this time, in center The difference of the grammes per square metre of the water absorbent polymer 3 of region and lateral region stepped can change, or can also continuously change and (pass Subtract or be incremented by).
It is also likewise, can be set in middle section and end regions to the grammes per square metre of water absorbent polymer 3 on longitudinal Y Difference.Such as when observing absorber 1 along longitudinal Y, the grammes per square metre of the water absorbent polymer 3 of middle section can be made to compare end regions Water absorbent polymer 3 grammes per square metre it is high.In turn, the grammes per square metre of the water absorbent polymer 3 of middle section can be made to compare end regions Water absorbent polymer 3 grammes per square metre it is low.At this time, can in the difference of middle section and the grammes per square metre of the water absorbent polymer 3 of end regions With stepped change, it either can also continuously change and (successively decrease or be incremented by).
Further, in absorber 1, as shown in Figure 1, the state before water-absorbing polymeric particles 3 absorb liquid, water suction Property polymer beads 3 protrude above with being not above side edge part 2s, 2s along longitudinal Y of strip matrix part 2 in horizontal X.Except this Outside, the state before water-absorbing polymeric particles 3 absorb liquid, produces between the adjacent absorbability unit 4 of transversely X Gap S.Gap S's is preferably sized to more than 0.1mm, more preferably more than 0.5mm.Additionally, it is preferred that be below 5mm, it is more excellent Elect below 3mm as.Such as gap S is preferably sized to more than 0.1mm and below 5mm, more preferably more than 0.5mm and 3mm with Under.
On the other hand, in absorber 1, as shown in Figure 3 so that after water-absorbing polymeric particles 3 absorb liquid, the suction Polymerizable aqueous composition granule 3 is swollen with being not more than side edge part 2s, 2s along longitudinal Y of strip matrix part 2.In order to realize this Purpose, in the present embodiment, in the absorbability unit 4 of absorber 1, fixes strip matrix part 2 via bonding agent 5 and inhales Polymerizable aqueous composition granule 3.
From water-absorbing polymeric particles 3 to the load amount of holding of strip matrix part 2, swelling obstruction, flexibility, aeration, suction From the viewpoint of maintenance of the plate shape of acceptor 1 etc., in absorber 1, width W2 and the absorber 1 of strip matrix part 2 The ratio (W2/W1) of width W1 is preferably more than 0.001, and more preferably more than 0.002, also, preferably less than 0.200, more Preferably less than 0.040.Specifically, it is preferably more than 0.001 and less than 0.200, more preferably more than 0.002 and 0.040 Below.
From the viewpoint of identical, the width W2 of strip matrix part 2 is preferably more than 0.3mm, more preferably 0.6mm with On, also, preferably below 10mm, more preferably below 2.0mm, more preferably below 1.8mm.Specifically, strip The width W2 of shape matrix part 2 is preferably more than 0.3mm and below 10mm, more preferably more than 0.6mm and below 2.0mm, into one Step is preferably more than 0.6mm and below 1.8mm.The width W2 of strip matrix part 2 is the strip matrix part 2 along longitudinal Y The distance between both sides edge.The width W1 of absorber 1 is along the distance between both sides edge of absorber 1 of longitudinal Y.
The strip matrix part 2 (substrate sheets) for forming absorbability unit 4 is hydrophilic component or hydrophobic component. Hydrophilic is defined as:The contact angle of 1 composition fiber its surface less than 90 ° or when piece is not fibrous material connects Feeler is less than 90 °.In addition, assay method follows following method.It can be used as hydrophily piece for example comprising hydrophilic material And the tablet formed.As its example, the paper as the fibre plate formed comprising hydrophilic fibre, nonwoven can be enumerated Cloth, weaving, braid etc..In addition, foaming body formed comprising hydrophilic resin etc. can be enumerated.These can be used alone Hydrophily piece, or two or more can be also applied in combination.On the other hand, hydrophobic is defined as:1 forms fiber Contact angle is more than 90 ° or the contact angle on its surface is more than 90 ° when piece is not fibrous material.In addition, assay method is abided by Follow following method.As hydrophobicity piece, the tablet for example formed comprising hydrophobic material can be used.As its example, Non-woven fabrics as the fibre plate formed comprising hydrophobic fibre etc. can be enumerated.In addition, it can enumerate comprising hydrophobicity tree Fat and foaming body for forming etc..These hydrophobicity pieces can be used alone, or two or more can be also applied in combination.No matter Strip matrix part 2 is hydrophilic or hydrophobic, from also higher or thin and flexible property is good even if its thin tensile strength From the viewpoint of, preferably using non-woven fabrics as the strip matrix part 2.The grammes per square metre of non-woven fabrics is preferably 5g/m2Above and 100g/m2Hereinafter, it is more preferably 10g/m2Above and 40g/m2Below.As hydrophilic non-woven, can make with no particular limitation With known material in the technical field such as spun-bonded non-woven fabrics, melt spraying non-woven fabrics, spunlace non-woven cloth, hot-wind nonwoven cloth.Separately Outside, as hydrophobic nonwoven, can be used without special restrictions such as using polyolefin resin polyethylene, polypropylene as Form the known material in the technical field such as the spun-bonded non-woven fabrics of fiber, melt spraying non-woven fabrics, spunlace non-woven cloth, hot-wind nonwoven cloth Material.
Particularly, when strip matrix part 2 is hydrophobicity piece, the liquid diffusibility in absorber 1 further improves, liquid Physical efficiency reaches the whole region of absorber 1, and therefore, the water-absorbing polymeric particles 3 for being fixed on absorber 1 all can be effective Ground utilizes.In addition, when strip matrix part 2 is hydrophobicity, also have the following advantages:Can effectively it prevent by adjacent suction The gap S that produces between the property received unit 4,4 and pass through the liquid come and flow back because of the body pressure of wearer.
<The assay method of the water-wetness of strip matrix part>
Water is relative to the contact angle or water of the composition fiber for the piece for forming strip matrix part relative to strip matrix The contact angle on the surface in portion measures by the following method.As measurement device, manufactured using consonance interface science Co., Ltd. Automatic contact angle meter MCA-J.Contact angle determination uses distilled water.Will be from ink-jetting style water droplet discharge unit (Cluster The manufacture of Technology Co., Ltd.s, discharge unit aperture are 25 μm of pulse injection device CTC-25) liquid measure of discharge is set as 20 Water droplet, is dropped onto the surface for forming fiber by picoliters.Situation about dripping is recorded in what is be connected with horizontally disposed camera In high speed recording apparatus.From from the viewpoint of image analysis afterwards, progress image analysis, recording apparatus is preferably assembled with The personal computer of high speed trap setting.In this measurement, image is recorded every 17msec.In the image recorded, for Water droplet drips to image initial obtained by the composition fiber of the skin opposite face to form non-woven fabrics or non-skin opposite face, utilizes (version of software is 2.6.2 to accompanying software FAMAS, parsing gimmick is sessile drop method, parsing gimmick is the method for θ/2, image processing algorithm It is frame, threshold level 200, without the correction of progress curvature for areflexia, image procossing image mode) image analysis is carried out, calculate Go out the angle that the face of water droplet ingress of air is formed with forming fiber, as contact angle.
In addition, when strip matrix part is non-woven fabrics, by test sample (forming fiber from obtained by non-woven fabrics taking-up) Non-woven fabrics composition fiber from most top layer with fibre length 1mm severings, this composition fiber is placed in the sample of contact angle meter On platform, maintenance level, the contact angle in two different parts is measured to every this composition fiber.In above-mentioned each position, N= 1 after the Contact-angle measurement of 5 to decimal point, by the average value of the measured value at 10 positions altogether (the 2nd four after decimal point House five enters) it is defined as respective contact angle.
As the water absorbent polymer 3 on the surface for being fixed on strip matrix part 2, the skill in absorbent commodity can be used The a variety of materials used all the time in art field.Can enumerate such as Sodium Polyacrylate, (acrylic-ethylene alcohol) copolymer, Sodium Polyacrylate crosslinked, (Starch with Acrylic Acid) graft copolymer, (isobutyiene-maieic anhydride) copolymer and its alkali compound, gather These materials, can be used alone a kind or mix two or more use by potassium acrylate and polyacrylic acid caesium etc..As water suction Property polymer beads 3, according to the difference of its shape, there is unsetting type, bulk type, bag-shaped type, spherical cohesion type, ball Shape type etc., can use any kind.
The skin being fixed in strip matrix part 2 with respect to the surface of surface side water absorbent polymer 3 and be fixed on strip Non- skin in shape matrix part 2 can be same species with respect to the water absorbent polymer 3 on the surface of surface side, or can also be different Species.From the viewpoint of 1 various additional properties of absorber are given, the skin being preferably fixed in strip matrix part 2 is opposite The water suction on the surface of the water absorbent polymer 3 on the surface of surface side surface side opposite with the non-skin being fixed in strip matrix part 2 Property polymer 3 is variety classes.Water absorbent polymer refers to for variety classes herein, logical liquid speed degree or centrifugation holding under pressurization Amount is different.Such as big quantity of fluid is kept from non-skin opposite face, and do not improve flesh on skin opposite face residual liquid From the viewpoint of skin sense of touch, water absorbent polymer 3 of the skin in strip matrix part 2 with respect to the surface of surface side is preferably fixed to Compared with water absorbent polymer 3 of the non-skin with respect to the surface of surface side being fixed in strip matrix part, logical fluidity under pressurization Energy is high and centrifugation maintenance dose is low.
From the point of view, the water imbibition on the surface of the opposite surface side of skin on being fixed in strip matrix part 2 Polymer 3, logical liquid speed degree is preferably more than 20ml/min under the pressurization of 2.0kPa, more preferably more than 40ml/min, also, excellent Elect below 1000ml/min as, more preferably below 800ml/min, specifically, logical liquid speed degree is preferably 20ml/ under pressurization More than min and below 1000ml/min, more preferably more than 40ml/min and below 800ml/min.On the other hand, on fixation Non- skin in strip matrix part 2 is with respect to the water absorbent polymer 3 on the surface of surface side, logical liquid speed degree under the pressurization of 2.0kPa Preferably more than 0ml/min, more preferably more than 10ml/min, also, preferably below 400ml/min, more preferably Below 200ml/min, specifically, logical liquid speed degree is preferably more than 0ml/min and below 400ml/min under pressurization, more preferably For more than 10ml/min and below 200ml/min.Logical liquid speed degree can be obtained by aftermentioned assay method under pressurization.
Under above-mentioned pressurization from the viewpoint of logical liquid speed degree, the skin on being fixed in strip matrix part 2 is opposite The water absorbent polymer 3 of surface side, centrifugation maintenance dose is preferably more than 20g/g, more preferably more than 25g/g, also, is preferably Below 50g/g, more preferably below 45g/g, specifically, centrifugation maintenance dose is preferably more than 20g/g and below 50g/g, more Preferably more than 25g/g and below 45g/g.On the other hand, the opposite surface side of non-skin on being fixed in strip matrix part 2 Surface water absorbent polymer 3, centrifugation maintenance dose be preferably more than 25g/g, more preferably more than 30g/g, also, be preferably Below 65g/g, more preferably below 55g/g, specifically, centrifugation maintenance dose is preferably more than 25g/g and below 65g/g, more Preferably more than 30g/g and below 55g/g.Centrifugation maintenance dose can be obtained by aftermentioned assay method.
Herein, centrifugation maintenance dose difference refers to, the centrifugation maintenance dose measured with following assay methods has more than 3g/g's Different situations.Be preferably fixed to skin in strip matrix part 2 with respect to the surface of surface side water absorbent polymer 3 with it is solid Compared due to the non-skin in strip matrix part with respect to the water absorbent polymer 3 on the surface of surface side, the low 5g/g of centrifugation maintenance dose More than, more preferably low 7g/g.
<The assay method of logical liquid speed degree under pressurization>
Logical liquid speed degree utilizes the assay method and measurement device described in Japanese Unexamined Patent Publication 2003-235889 publications under pressurization It is measured.That is, in the glass beaker of 100mL, 0.32 ± 0.005g of water absorbent polymer as measure sample is put into, into One step, which is put into, makes the water absorbent polymer 3 of the amount be swollen required an adequate amount of physiological saline (0.9 mass % aqueous sodium chlorides Liquid), more than 5 times of physiological saline of the saturated absorption amount of such as water absorbent polymer, place 30 minutes.In addition, prepare hanging down The lower end of the opening portion for the cylinder (internal diameter 25.4mm) directly erect has woven wire, and (screen size is 150 μm, San Co., Ltd. The Bio Column sintered stainless steels filter 30SUS that business sells) and tubule with cock (internal diameter 2mm) (internal diameter is 4mm, length 8cm) filtering cylindrical tube, in the state of cut-out tap, in the cylindrical tube input include be swollen after survey Determine the entire contents of the above-mentioned beaker including sample.Then, it is 150 μm and a diameter of 25mm front end to be had screen size The cylindrical rod of a diameter of 2mm of woven wire is inserted into filtering cylindrical tube, makes the woven wire and measure sample contacts, into one Weighting material is walked to apply the load of 2.0kPa to measure sample.After placing 1 minute in this condition, opening cock makes solution stream It is dynamic, untill the liquid level in metering filtering cylindrical tube reaches the graduation mark (i.e. the solution of 20mL passes through) of 40mL from the graduation mark of 60mL Time (T1) (second).Using the time T1 (second) measured, logical liquid speed degree under the pressurization of 2.0kPa is calculated by following formula.In formula, T0 (second) is that measure sample is added without in filtering cylindrical tube measuring 20ml physiological saline passes through the time needed for woven wire Value.
Logical liquid speed degree (ml/min)=20 × 60/ (T1-T0) under pressurization
Measure carries out 5 times (n=5), removes each 1 value up and down, using the average value of remaining 3 values as measured value.Separately Outside, measure and carried out at 23 ± 2 DEG C, humidity 50 ± 5%, sample preserved under identical environment before measure 24 it is small when more than, so After be measured.Paragraph of the more detailed assay method of logical liquid speed degree in Japanese Unexamined Patent Publication 2003-235889 publications under pressurization (0008) on the books and in paragraph (0009), measurement device is on the books in Fig. 1 and Fig. 2 of the publication in addition.
<Centrifuge the assay method of maintenance dose>
The measure of centrifugation maintenance dose (water absorption) is carried out according to JIS K7223 (1996).By weaving (three power of nylon Making is sold, the name of an article:Nylon wire, specification:250 mesh) rectangle that width is 10cm, length is 40cm is cut into, in length Direction centre doubling, both ends are sealed and make the Nylon Bag that width is 10cm (inside dimension 9cm), length is 20cm. Then, water absorbent polymer 1.00g of the accurate weighing as measure sample, is uniformly loaded into the bottom for the Nylon Bag produced Portion.Then, the Nylon Bag for enclosing sample is made to be impregnated into the physiological saline (0.9 mass % sodium-chloride water solutions) of temperature adjustment to 25 DEG C In.Then since dipping 1 it is small when after Nylon Bag is taken out from physiological saline, with plumbness suspension 1 it is small when to drip After water, it is dehydrated using centrifuge dehumidifier (Kokusan Co., Ltd.s system, model H-130C special types).Dehydration conditions be with 143G (800rpm) is carried out 10 minutes.After dehydration, the quality of sample is measured, the centrifugation maintenance dose for calculating target according to the following formula (is inhaled Water).
Centrifuge maintenance dose (g/g)=(a '-b-c)/c
In formula, a ' represents that the gross mass (g) of sample and Nylon Bag after centrifugal dehydration, b (are done before representing the water suction of Nylon Bag When dry) quality (g), the quality (g) of (dry when) before the water suction of c representing samples.
Measure carries out 5 times (n=5), removes each 1 value up and down, using the average value of remaining 3 values as measured value.Separately Outside, measure and carried out at 23 ± 2 DEG C, humidity 50 ± 5%, sample preserved under identical environment before measure 24 it is small when more than, so After be measured.
The water absorbent polymer 3 on the surface of strip matrix part 2 is fixed on, its grammes per square metre is preferably 20g/m2More than, it is more excellent Elect 50g/m as2More than.Additionally, it is preferred that it is 400g/m2Hereinafter, it is more preferably 300g/m2Below.Such as water absorbent polymer 3 Grammes per square metre is preferably 20g/m2Above and 400g/m2Hereinafter, it is more preferably 50g/m2Above and 300g/m2Below.By with the scope Grammes per square metre fix water-absorbing polymeric particles 3 can obtain sufficient water absorbing properties.
The skin being fixed in strip matrix part 2 with respect to the water absorbent polymer 3 of surface side grammes per square metre and be fixed on strip Non- skin in shape matrix part 2 can be identical with respect to the grammes per square metre of the water absorbent polymer 3 of surface side, or can not also be same.Two When person is different, in the water absorbent polymer 3 of strip matrix part 2 is fixed on, preferably with being fixed in the strip matrix part 2 Skin compared with respect to the grammes per square metre of the water absorbent polymer 3 of surface side, the non-skin opposite face being fixed in the strip matrix part 2 The grammes per square metre of the water absorbent polymer 3 of side is high.Thereby, it is possible to efficiently use to be fixed on water absorbent polymer of the non-skin with respect to surface side Particle 3, is fixed on water absorbent polymer 3 of the skin with respect to surface side therefore, it is possible to reduce, reduces the overall water imbibition of absorber 1 The usage amount of polymer 3.In addition, the non-skin in strip matrix part 2 easily forms liquid storage layer with respect to surface side, therefore, It can reduce and be fixed on water-absorbing polymeric particles 3 of the skin with respect to surface side, thus, it is possible to further reduce liquid measure.In fixation When non-skin is higher with respect to surface side than skin with respect to the grammes per square metre of the water absorbent polymer 3 of surface side, non-skin is fixed on respect to surface side Water absorbent polymer 3 grammes per square metre B2 surface sides opposite with being fixed on skin water absorbent polymer 3 grammes per square metre B1 ratio i.e. B2/B1 Value be preferably more than 1.05, more preferably more than 1.7.Additionally, it is preferred that be less than 40, more preferably less than 10.Such as B2/B1 Value be preferably more than 1.05 and less than 40, more preferably more than 1.7 and less than 10.
The skin being fixed in strip matrix part 2 with respect to the water absorbent polymer 3 of surface side grammes per square metre and be fixed on strip Non- skin in shape matrix part 2 is measured with respect to the grammes per square metre of the water absorbent polymer 3 of surface side by the following method.
<The skin being fixed in strip matrix part 2 with respect to the water absorbent polymer 3 of surface side grammes per square metre and be fixed on strip The assay method of non-skin in shape matrix part 2 with respect to the grammes per square metre of the water absorbent polymer 3 of surface side>
In order to enable the non-skin in strip matrix part 2 is not fallen off with respect to the water absorbent polymer of surface side, from water imbibition It is fixed with bonding agent etc. again above polymer, will be fixed on skin with respect to surface side water absorbent polymer using solvent etc. from Strip matrix part 2 is peeled off, and cleans the bonding agent for being attached to water absorbent polymer.After drying water absorbent polymer, to fixation It is measured in skin with respect to the weight of the water absorbent polymer of surface side, according to the strip for the part for being fixed with water absorbent polymer The weight of the area of shape matrix part 2 and the water absorbent polymer peeled off, calculates the water absorbent polymer of per unit area fixation Weight, as grammes per square metre of the skin with respect to the water absorbent polymer of surface side.5 are measured and calculates average value.
For water absorbent polymer grammes per square metre of the non-skin with respect to surface side, similarly in the water imbibition of fixed skin opposite face side On the basis of polymer, non-skin is peeled off with respect to the water absorbent polymer of surface side, cleans and calculates grammes per square metre.
As make water-absorbing polymeric particles 3 be fixed on strip matrix part 2 surface method, have for example using bonding The method of agent, utilize the fixed method of the chemistry such as hydrogen bond.In addition, it is non-woven fabrics, weaving or braid in strip matrix part 2 When fibre plate when, also can use make its form fibre pick, fix water absorbent polymer between the composition fiber of fluffing The method of particle 3.In the absorber 1 shown in Fig. 1, bonding agent 5 is used.That is, the water-absorbing polymeric particles 3 of absorber 1 pass through The surface of strip matrix part 2 is fixed on by bonding agent 5.Water-absorbing polymeric particles 3 are fixed on using bonding agent 5 like this During the surface of strip matrix part 2, in the state after state or swelling before the use of absorber 1, water absorbent polymer Particle 3 is not easily to fall off, therefore preferably using bonding agent 5.
As bonding agent 5, preferably using such as hot melt adhesive.As hot melt adhesive, styrene can be enumerated The hot melt adhesive of class, olefines.As phenylethylene hot-melt adhesive, can be total to using s-B-S Polymers (SBS), styrene-isoprene-styrene copolymer (SIS), as SBS hydride styrene-ethylene-fourth Alkene-styrol copolymer (SEBS) and will obtained by their two or more blending blend class hot melt adhesive.Wherein, From the viewpoint of the easy balance for obtaining bonding force and cohesiveness, the blending of SIS and SBS is particularly preferably used in the present invention The blending class hot-melt adhesive of class hot-melt adhesive or SIS and SEBS.The coating amount of hot melt adhesive is preferably 0.5g/ m2Above and 100g/m2Hereinafter, it is more preferably 5g/m2Above and 50g/m2Below.
In the absorbent commodity 10 of the present embodiment with above structure, liquid is absorbed in water-absorbing polymeric particles In front and rear any state, water-absorbing polymeric particles 3 be not above strip matrix part 2 along longitudinal Y side edge part 2s, Protruded above in horizontal X, therefore, it is possible to obtain following advantageous effect 2s:It is not susceptible to the gel of water-absorbing polymeric particles 3 Block, the diffusivity and permeability of the liquid in absorber 1 do not tend to decrease.Particularly, in 3 absorbing liquid of water-absorbing polymeric particles After body, which easily occurs gel envelope when being swollen with exceeding side edge part 2s, 2s of strip matrix part 2 It is stifled, but in the absorbent commodity 10 of present embodiment, the generation of such a gel closure can be effectively inhibited.Thereby, it is possible to Effectively utilize and be individually fixed in skin abutment face side (skin is with respect to surface side) and non-skin abutment face across strip matrix part 2 Both particles of the water absorbent polymer 3 of side (non-skin is with respect to surface side), it is possible to increase the water absorbing properties of absorber 1.In addition, Non- skin abutment face side stockpiling liquid in strip matrix part 2 becomes easy, thus, it is possible to effectively prevent returning for liquid Stream.
In addition, by the top and bottom of strip matrix part fix water-absorbing polymeric particles 3, for urine etc. low viscosity and The liquid excreted at high speed, absorber can temporarily store the liquid.Thus, it is not susceptible to liquid leakage.
Further, in the absorbent commodity 10 of present embodiment, even in the particle absorbing liquid of water absorbent polymer 3 After body, gap S is also able to maintain that between adjacent absorbability unit 4, therefore, even if absorber 1 is after absorption of liquid, is also in Reveal such as the flexibility of same block piece material.
After water-absorbing polymeric particles 3 absorb liquid, as shown in figure 3, absorbability unit 4 is easily to form adjacent suction The strip matrix part 2 of the property received unit 4,2 mutual positions mode different on thickness direction Z move.Herein, " in thickness It is different on the Z of direction " such as having in the situation of downward shift, the situation of inclination and offset or the two situation about occurring.The shifting Dynamic cause is due to volume increase caused by the swelling of water-absorbing polymeric particles 3.The movement includes through-thickness Z's Strip matrix part 2 move in parallel and the inclination both of these case of strip matrix part 2 relative to thickness direction Z.Because The movement, after water-absorbing polymeric particles 3 absorb liquid, the gap S between adjacent absorbability unit 4 is also easy to It is maintained.Thus the generation of gel closure can also be effectively inhibited, and the transmission of the liquid of through-thickness Z is not easy to be hampered Hinder.
Due to the absorption of liquid, absorbability unit 4,4 easy through-thickness Z are moved freely, from making to gather water imbibition The obstruction of the swelling of polymer beads 3 is more difficult to from the viewpoint of generation, absorbs the water-absorbing polymeric particles 3 of the state before liquid Average grain diameter d1 is preferably more than 20 μm, more preferably more than 200 μm, also, preferably less than 700 μm, more preferably 500 μm Below.Specifically, it is preferably more than 20 μm and less than 700 μm, more preferably more than 200 μm and less than 500 μm.The opposing party Face, the average grain diameter d2 of the water-absorbing polymeric particles 3 for the state for absorbing liquid and being swollen is preferably more than 200 μm, more preferably For more than 800 μm, also, preferably less than 3000 μm, more preferably less than 2000 μm.Specifically, it is preferably more than 200 μm And less than 3000 μm, more preferably more than 800 μm and less than 2000 μm.The average grain diameter of water-absorbing polymeric particles 3 can lead to Following assay method is crossed to obtain.
<Absorb the assay method of the average grain diameter d1 of the water-absorbing polymeric particles of the state before liquid>
The average grain diameter d1 of state before use is measured by the following method:Using the water absorbent polymer before use Grain, with the diameter or major axis of light microscope observation water-absorbing polymeric particles.Diameter described herein refers to water-absorbent polymeric Diameter when composition granule is spherical.In addition, major axis refers to water-absorbing polymeric particles for diamond shape, rectangle, string-like, rugby shape Longest axis when profiled shape.The diameter or major axis of 50 water-absorbing polymeric particles are measured altogether, by the flat of the number Equal average grain diameter of the particle diameter as the water-absorbing polymeric particles of the state before use.
<Absorb the assay method of the average grain diameter d2 of the water-absorbing polymeric particles of the state after liquid>
The average grain diameter d2 of state after swelling is measured by the following method:The length of water-absorbing polymeric particles will be fixed with Strip matrix part 2 is impregnated in the physiological saline (0.9 mass % sodium-chloride water solutions) of temperature adjustment to 25 DEG C, since the dipping 1 Strip matrix part 2 is taken out from physiological saline after hour, after hanging 30 minutes with plumbness to drip water, uses optical microphotograph The diameter or major axis of the water-absorbing polymeric particles on the surface of sem observation strip matrix part 2.The diameter of this place speech refers to inhale Diameter when polymerizable aqueous composition granule is spherical.In addition, major axis refer to water-absorbing polymeric particles for diamond shape, rectangle, string-like, Longest axis of the rugby shape when profiled shape.The diameter or major axis of 50 water-absorbing polymeric particles are measured altogether, this is counted Average grain diameter of the purpose average grain diameter as the water-absorbing polymeric particles of the state after swelling.
In addition, from the viewpoint of the absorption using liquid makes absorbability unit 4,4 through-thickness Z mobile freely, Pass on the width W2 and the average grain diameter d1 of the water-absorbing polymeric particles of the state before absorption liquid of strip matrix part 2 System, the value of d1/W2 is preferably more than 0.002, and more preferably more than 0.100.Additionally, it is preferred that it is less than 0.900, more preferably Less than 0.800.Such as the value of d1/W2 is preferably more than 0.002 and less than 0.900, more preferably more than 0.100 and 0.800 with Under.On the other hand, on the width W2 of strip matrix part 2 and putting down for the water-absorbing polymeric particles of the state after absorption liquid The relation of equal particle diameter d2, the value of d2/W2 is preferably more than 0.02, and more preferably more than 0.45.Additionally, it is preferred that be less than 0.90, More preferably less than 0.80.Such as the value of d2/W2 is preferably more than 0.02 and less than 0.90, more preferably more than 0.45 and 0.80 Below.
Then, the preferable embodiment of manufacture method institute with reference to Fig. 4 to the absorbent commodity 10 of present embodiment Illustrate.Illustrate in Fig. 4 the manufacture method of the absorbent commodity 10 of present embodiment preferably using manufacture device 100.The manufacture device 100 of present embodiment from the upstream side of manufacturing step, downstream go to include successively by side:First bonding agents apply Apply portion 120, the first water absorbent polymer distribution portion 130, second bonding agents coated portion 140, the second water absorbent polymer distribution portion 150 and substrate sheets cutting part 110.In addition, in manufacture device 100 shown in Fig. 4, use apply first bonding agents respectively 120 and first water absorbent polymer distribution portion of portion, 130 integrated device and by second bonding agents coated portion 140 and second 150 integrated device of water absorbent polymer distribution portion, but these devices can not also integration.The integrated device into For with lower structure:Upstream side placement of adhesives coated portion 120,140 in the apparatus, the downstream in the integrated device Side configuration water absorbent polymer distribution portion 130,150.
First bonding agents coated portion 120 is in the state of multiple strip matrix parts 2 is conveyed along conveying direction, each The part of multiple position adhesive-applyings on horizontal X separated by a distance on the surface in a face in strip matrix part 2. In the manufacture device 100 of present embodiment, as shown in figure 4, including applicator head 121.Can be used as applicator head 121 has such as The applicator head 121 of lower structure:On the surface in a face of the substrate sheets 20 conveyed in one direction, separated from horizontal X Multiple position adhesive-applyings 5 of distance.Applicator head 121 is formed as the absorption region AT for having with absorber 1 on X1 directions Width, the i.e. corresponding length of length of transverse direction X.Thus the applicator head 121 formed is configured at a face of strip matrix part 2 On.
Second bonding agents coated portion 140 is located at the downstream in the first water absorbent polymer distribution portion 130.Second bonding agents apply Applying portion 140 has the structure identical with first bonding agents coated portion 120, can use with can be in the base conveyed in one direction The surface in another face of material piece 20, from the applicator head of the structure of multiple position adhesive-applyings 5 on horizontal X separated by a distance 147.In addition, in Fig. 4, the component shown in reference numeral 147 in second bonding agents coated portion 140 is applied with first bonding agents Applying applicator head 121 possessed by portion 120 has the applicator head of identical structure.
The first water absorbent polymer distribution portion 130 positioned at the downstream of first bonding agents coated portion 120 is to make utilization First bonding agents coated portion 120 be coated with bonding agent strip matrix part 2 conveyed along conveying direction in the state of, throughout each length Spread water-absorbent polymeric to the whole region of the horizontal X on the surface in the face for being coated with the bonding agent in strip matrix part 2 The part of composition granule 3.As shown in figure 4, the manufacture device 100 in present embodiment includes water absorbent polymer introduction part 131. The various known gatherers of use that can be not particularly limited as water absorbent polymer introduction part 131.Water absorbent polymer Introduction part 131 is formed as having on X1 directions corresponding with the length of the width of the absorption region AT of absorber 1, i.e. transverse direction X Length.The water absorbent polymer introduction part 131 so formed is configured on a face of strip matrix part 2.
Second water absorbent polymer distribution portion 150 is located at the downstream of second bonding agents coated portion 140.Second water imbibition is gathered Compound distribution portion 150 has identical structure with the first water absorbent polymer distribution portion 130, is to make to apply using second bonding agents In the state of the strip matrix part 2 that deposited portion 140 is coated with bonding agent is conveyed along conveying direction, throughout each strip matrix part 2 In another face for being coated with the bonding agent surface horizontal X whole region spread water-absorbing polymeric particles 3 Part.In addition, in Fig. 4, the component in the second water absorbent polymer distribution portion 150 shown in reference numeral 153 is inhaled with first Water absorbent polymer introduction part 131 possessed by waterborne polymeric distribution portion 130 has the water absorbent polymer of identical structure Introduction part.
Substrate sheets cutting part 110 positioned at the downstream in the second water absorbent polymer distribution portion 150 is to as strip The substrate sheets 20 raw material, having hydrophilic banding of matrix part 2 impose a plurality of notch (cutting trace) along its conveying direction And obtain the part of narrow multiple strip matrix parts 2.In order to apply a plurality of notch to substrate sheets 20, can be not particularly limited Ground uses various known cutter devices.As shown in figure 5, cutter device is used in the manufacture device 100 of present embodiment 113, the cutter device 113 be included in side face be configured with multiple cutter 111a, 111a, 111a ... rotating mould 111b and with The flat undertaking roller 112 of side face of rotating mould 111b relative configurations.Each cutter 111a of cutter device 113 is along rotating mould 111b Direction of rotation configuration, multiple cutter 111a, 111a, 111a ... are respectively in the conveying direction Y1 of the substrate sheets 20 with banding Abreast configured on orthogonal direction X1.Adjacent cutter 111a, 111a interval to each other and institute on orthogonal direction X1 The width (the laterally length of (X-direction)) of each strip matrix part 2 formed is corresponding.Herein, the conveying direction Y1 of substrate sheets 20 It is corresponding with the longitudinal direction (Y-direction) of manufactured absorber 1, the transverse direction (X-direction) of orthogonal direction X1 and manufactured absorber 1 It is corresponding.In addition, the shearing that the cutting of substrate sheets 20 can make the side break-in of cutter and bottom knife and cut off The cutter device of (shear cut) mode, can also use make multiple pressure-cutting type cutters (Score cut knife) in orthogonal side The device being arranged side by side to X1, the laser aid that can also use irradiation laser and fuse.
Absorber 1 as shown in Figure 2 is such, when absorber 1 includes non-gap zone NT at the both ends of longitudinal Y, such as As shown in FIG. 5, recess 114 is formed in the side face of each cutter 111a.In the periphery of rotating cutter 111a The length of the circular arc of 114 part of recess, the non-gap zone NT with being equal to the both ends for being configured at absorber 1 shown in Fig. 2 Longitudinal direction (Y-direction) length aggregate value length correspond to.Prepare multiple cutter 111a including such recess 114, 111a, 111a ..., are matched somebody with somebody using the recess 114 of adjacent cutter 111a on the X1 of direction, 114 mutual positions is coordinated The rotating mould 111b put.In addition, the circular arc of the part in addition to recess 114 in the periphery of rotating cutter 111a Length, with the absorber 1 shown in Fig. 2 possessed by the longitudinal direction of strip matrix part 2 Y length it is corresponding.In addition, absorber 1 exists , can be in position corresponding with the non-gap zone NT not configuration cuts when including non-gap zone NT along the both sides of longitudinal direction Y Knife 111a.
In manufacture device 100 shown in Fig. 4, dissipated with 120 and first water absorbent polymer of first bonding agents coated portion The opposite position of 130 integrated device of cloth portion, in lower face side (another face of transported multiple strip matrix parts 2 Side), it is configured with suction conveyor 141.Suction conveyor 141 includes being set up in driven roller 142 and the ring-type of multiple driven vollers 143 Aeration band 144, and be configured at across aeration band 144 vacuum box 145 of the position opposite with the integrated device. Multiple strip matrix parts 2 are directed on suction conveyor 141.Though in addition, not illustrating, applied with second bonding agents The opposite position of 140 and second water absorbent polymer distribution portion of portion, 150 integrated devices is also configured with having and vacuum handling 141 mutually isostructural suction conveyor of machine.
Manufacture device 100 shown in Fig. 4 includes sending out the drive of substrate sheets 20 from the blank volume of the substrate sheets 20 of banding The driven roller 152 of the precursor 1b of dynamic roller 151 and the absorber 1 produced to most downstream side conveying.
The method for the absorbent commodity that above-mentioned manufacture device 100 used below includes absorber 1 to manufacture illustrates.Should Manufacture method comprises the following steps.
(a) on the surface in a face of the substrate sheets conveyed in one direction, multiple portions separated by a distance in its transverse direction The step of position adhesive-applying.
(b) in the state of the substrate sheets for being coated with the bonding agent is conveyed along conveying direction, applied in the substrate sheets The surface in one face of the bonding agent has been applied, has spread to the whole region horizontal throughout its step of water-absorbing polymeric particles Suddenly.
(c) surface distribution in one face is made there are the substrate sheets of water-absorbing polymeric particles along the conveying In the state of the conveying of direction, the surface in another face in substrate sheets, multiple positions coating separated by a distance in its transverse direction The step of bonding agent.
(d) in the state of the substrate sheets for being coated with the bonding agent is conveyed along the conveying direction, in base material The surface in another face of the bonding agent is coated with piece, spreads water absorbent polymer to the whole region horizontal throughout its The step of particle.
(e) conveyed in the substrate sheets for making to be scattered with the water-absorbing polymeric particles in each face along the conveying direction In the state of, the uncoated position between the position of the bonding agent is coated with, applies notch along the conveying direction and obtains narrow Multiple strip matrix parts of width, so that the step of manufacturing absorber.
Hereinafter, each step is illustrated.
First, before (a) step is implemented, the exhaust apparatus for making to be connected with vacuum box 145 works and makes in vacuum box 145 As negative pressure.The step is for being configured at and the one of 140 and second water absorbent polymer distribution portion of second bonding agents coated portion 150 The vacuum box of the suction conveyor of the opposite position of the device of change is also same.Then, driven roller 151 and driven roller are driven 152, cutter device 113 and aeration band 144 are rotated, suction conveyor 141 is worked.Using driven roller 151 from banding The blank volume of substrate sheets 20 sends out substrate sheets 20.
In (a) step, on the surface in a face of the substrate sheets 20 sent out from blank volume, applied using first bonding agents The multiple position adhesive-applyings 5 of portion 120 in the horizontal separated by a distance.Substrate sheets 20 are conveyed by suction conveyor 141, and During on vacuum box 145, using the applicator head 121 of first bonding agents coated portion 120 in a face of the substrate sheets 20 Surface, in addition to non-cutting portion NTb, along conveying direction Y1 adhesive-applying 5 at intervals.
At this time, multiple position adhesive-applyings 5 on horizontal X separated by a distance are critically important.By using such a painting Application mode, absorber 1 before absorbing liquid after any one state in, water-absorbing polymeric particles 3 are not convex in horizontal X Go out to the side edge part 2s more than strip matrix part 2.The water-absorbing polymeric particles 3 being distributed are via coated on strip matrix The bonding agent 5 on the surface in one face in portion 2 is reliably fixed to strip matrix part 2.
In order to carry out (a) step, using with can on the surface in a face of the substrate sheets 20 conveyed in one direction, From the applicator head 121 of the structure of multiple position adhesive-applyings 5 on horizontal X separated by a distance.
In (b) step for continuing (a) step, in the face of substrate sheets 20, applied using first bonding agents coated portion 120 The surface in a face of bonding agent 5 is applied, the whole region using the first water absorbent polymer distribution portion 130 throughout horizontal X Spread water-absorbing polymeric particles 3.Substrate sheets 20 are conveyed by suction conveyor 141, during on vacuum box 145, profit With the first water absorbent polymer distribution portion 130 water-absorbing polymeric particles 3 are spread along conveying direction Y1 on the surface in a face.But It is not spread water-absorbing polymeric particles 3 in non-cutting portion NTb.
By spreading water-absorbing polymeric particles 3 like this, formed it is multiple via bonding agent 5 by water-absorbing polymeric particles 3 are fixed on the absorbability unit 4 on the surface of a face (upper surface) of strip matrix part 2.The multiple absorbabilities being consequently formed Unit 4, arranges in a manner of respective longitudinal direction Y is towards conveying direction (Y1 directions), so as to form the precursor 1b of absorber 1.
Then, after inverting the positive back side of strip matrix part 2 using reverse roll 148, in the strip matrix part 2 The surface in another face carry out (c) and (d) step as step identical with above-mentioned (a) and (b) step respectively.At this time, In (c) step, across strip matrix part 2, spread at the corresponding position in position with having spread bonding agent 5 in (a) step Bonding agent 5.
Then, in (e) step, the substrate sheets 20 that water-absorbing polymeric particles 3 are scattered with each face are supplied to base material Between the multiple cutter 111a and undertaking roller 112 of rotating mould 111b in the cutter device 113 of piece cutting part 110, along conveying Direction Y1 applies notch, and obtains having narrow multiple strip matrix parts 2 and be fixed on the surface of the strip matrix part 2 Water-absorbing polymeric particles 3 multiple absorbability units 4.The position for being applied with notch is to make substrate sheets 20 along conveying direction In the state of Y1 conveyings, the uncoated position that is coated between the position of bonding agent 5.In thus obtained each absorbability unit 4 In, become the state that water-absorbing polymeric particles 3 in the position of the central area of its transverse direction X, are fixed with along longitudinal Y.Thus, shape The absorbability unit 4 on the surface in a face of strip matrix part 2 is only fixed on into multiple water-absorbing polymeric particles 3.Thus The multiple absorbability units 4 formed arrange in a manner of respective longitudinal direction Y is towards conveying direction Y1 and form the precursor of absorber 1 1b。
In the present embodiment, as shown in figure 5, multiple cutter 111as of the configuration on the direction of rotation of rotating mould 111b Abreast configured on the orthogonal direction X1 of the conveying direction (Y1 directions) of the substrate sheets 20 with banding respectively, therefore, by banding Substrate sheets 20 cut along the conveying direction Y1 of substrate sheets 20, and multiple positions on orthogonal direction X1 cut and Form multiple absorbability units 4.In addition, being cut the part that knife 111a cut becomes the side edge part 2s of absorbability unit 4.
In addition, in the present embodiment, multiple cutter 111a each have recess 114, therefore, in transported banding Substrate sheets 20, form non-cutting portion NTb at intervals with separating the amount of the length of longitudinal Y of absorbability unit 4, this is non-cutting Portion NTb is corresponding with the amount of 2 times of the length of longitudinal Y of non-gap zone NT of length.The multiple suctions formed by cutting step The property received unit 4 is formed parallel on conveying direction Y1, is configured to be arranged side by side in orthogonal direction X1.
Then, by the precursor 1b of absorber 1, using driven roller 152, downstream side conveys, and (is not had using known disconnecting device Have diagram) precursor 1b is cut off in the position of two deciles of the length of the conveying direction Y1 of each non-cutting portion NTb.Thus, It can be continuously manufactured by the absorber 1 at the both ends of longitudinal Y with the transversely non-gap zone NT of X extensions.In this way, according to This manufacture device 100 and use its this manufacture method, can stablize and efficiently manufacture absorber 1.Afterwards, according to known Step, positive dough sheet is configured in a surface side of absorber 1, and configures back sheet in another surface side, further as needed Other components are configured, thus, it is possible to obtain the absorbent commodity as target.
The variation of the manufacture method of the step of as including (a) to (e), can use has following (a ') The method of the step of to (e ').
(a ') is horizontal whole throughout it on the surface in a face of transported hydrophilic substrate sheets in one direction Region adhesive-applying the step of.
(b ') in the state of the substrate sheets for making to be coated with the bonding agent are conveyed along the conveying direction, in the base The surface in one face of the bonding agent is coated with material piece, multiple positions separated by a distance spread water imbibition in its transverse direction The step of polymer beads.
(c ') makes the surface distribution in one face have the substrate sheets of water-absorbing polymeric particles along described defeated In the state of sending direction conveying, the surface in another face in substrate sheets, applies bonding to the whole region horizontal throughout its The step of agent.
(d ') in the state of the strip matrix part for making to be coated with the bonding agent is conveyed along the conveying direction, The surface in another face described in the bonding agent is coated with substrate sheets, multiple positions separated by a distance are spread in its transverse direction The step of water-absorbing polymeric particles.
(e ') makes the substrate sheets for being scattered with the water-absorbing polymeric particles in each face defeated along the conveying direction In the state of sending, the non-distribution position between the position of the water-absorbing polymeric particles is scattered with, applies along the conveying direction Notch, and obtain narrow multiple strip matrix parts, the step of to manufacture absorber.
In (a ') step, on the surface in a face of substrate sheets 20, using first bonding agents coated portion 120 throughout base material The whole region of horizontal X in piece 20 ground adhesive-applying 5.Substrate sheets 20 are conveyed by suction conveyor 141, and positioned at true During on sylphon 145, using the applicator head 121 of first bonding agents coated portion 120 on the surface in a face of the substrate sheets 20, In addition to non-cutting portion NTb, along conveying direction Y1 adhesive-applying 5 at intervals.
In (the b ') step for continuing (a ') step, in the face of substrate sheets 20, first bonding agents coated portion 120 is being utilized The surface in a face of bonding agent 5 is coated with, utilizes the first water absorbent polymer distribution portion 130 separated by a distance more in the horizontal A position spreads water-absorbing polymeric particles 3.Substrate sheets 20 are conveyed by suction conveyor 141, in the phase on vacuum box 145 Between, on the surface in a face water absorbent polymer is spread along conveying direction Y1 using the first water absorbent polymer distribution portion 130 Grain 3.But water-absorbing polymeric particles 3 are not spread in non-cutting portion NTb.
At this time, the surface in the face for being coated with bonding agent 5 in substrate sheets 20, multiple portions on horizontal X separated by a distance It is critically important that position, which spreads water-absorbing polymeric particles 3,.By using such a distribution form, absorber 1 before absorbing liquid after Any one state in, water-absorbing polymeric particles 3 are not protruded above to the lateral margin more than strip matrix part 2 in horizontal X Portion 2s.The water-absorbing polymeric particles 3 of distribution via the surface in a face coated on strip matrix part 25 quilt of bonding agent It is firmly secured to the surface in a face of strip matrix part 2.
It can be used with the water absorbent polymer distribution portion 130 such as lower structure to carry out (the b ') step:Can be A face of transported substrate sheets 20 in one direction, gathers from multiple positions coating water imbibition on horizontal X separated by a distance Polymer beads 3.
Then, after inverting the positive back side of strip matrix part 2 using reverse roll 148, in the strip matrix part 2 The surface in another face carry out (c ') and (d ') step as step identical with above-mentioned (a ') and (b ') step respectively. It is corresponding at the position with having spread water-absorbing polymeric particles 3 in (b ') step across strip matrix part 2 in (d ') step Position spread water absorbent polymer 3.
Then, in (e ') step, the substrate sheets 20 of water-absorbing polymeric particles 3 is being scattered with, are being applied along conveying direction Y1 Add notch, and obtain that there are narrow multiple strip matrix parts 2 and be fixed on the water absorbent polymer of the strip matrix part 2 Multiple absorbability units 4 of particle 3.The position for being applied with notch is in the state for making substrate sheets 20 be conveyed along conveying direction Y1 Under, spread the non-distribution position between the position of water-absorbing polymeric particles 3.Thus obtained each absorbability unit 4, becomes The state of water-absorbing polymeric particles 3 is fixed with along longitudinal Y in the position of the central area of its transverse direction X.By this measure, formed more A water-absorbing polymeric particles 3 are fixed on the absorbability unit 4 in each face of strip matrix part 2.The multiple absorptions being consequently formed Property unit 4 arranges in a manner of respective longitudinal direction Y is towards conveying direction Y1, and forms the precursor 1b of absorber 1.Afterwards carry out with Using the identical step of the method for the manufacture device shown in Fig. 4, can be absorbed body 1 and absorbent commodity 10.
The manufacture method using other manufacture devices 100 is represented in Fig. 6.In the manufacture method so far illustrated, exist first The surface in each face of substrate sheets 20 carries out the coating of bonding agent 5 and the distribution of water-absorbing polymeric particles 3, afterwards, to substrate sheets 20 apply a plurality of notch along conveying direction Y1, but in the manufacture method of present embodiment, apply edge in substrate sheets 20 first The a plurality of notch of conveying direction Y1 and after obtaining narrow multiple strip matrix parts 2, in each face of the strip matrix part 2 Surface carries out the coating of bonding agent 5 and the distribution of water-absorbing polymeric particles 3.The manufacture method is described in detail below.In addition, On the manufacture device 100 shown in Fig. 6 and use its manufacture method, the point being not particularly illustrated can suitably apply on Manufacture device 100 shown in Fig. 4 and the described above using its manufacture method.
Manufacture device 100 shown in Fig. 6 from the upstream side of manufacturing step, downstream go to include successively by side:Substrate sheets cutting part 110th, 120 and first water absorbent polymer distribution portion 130 of first bonding agents coated portion, second bonding agents coated portion 140 and second Water absorbent polymer distribution portion 150.The structure of each several part 110,120,130,140,150 is identical with the manufacture device shown in Fig. 4. The method of the absorbent commodity to including absorber 1 using the manufacture device 100 manufacture illustrates below.The manufacture method bag Include following step.
(f) apply a plurality of notch along its conveying direction in transported substrate sheets in one direction, and obtain narrow The step of multiple strip matrix parts.
(g) in the state of multiple strip matrix parts is conveyed along conveying direction, only in each strip matrix part A face surface horizontal middle section adhesive-applying the step of.
(h) make in the strip matrix part of the surface in one face coated with the bonding agent along the conveying In the state of the conveying of direction, the transverse direction on the surface in the one face for being coated with the bonding agent in each strip matrix part Whole region ground the step of spreading water-absorbing polymeric particles.
(i) in the state of multiple strip matrix parts is conveyed along the conveying direction, only in each strip base The step of horizontal middle section adhesive-applying on the surface in another face in body portion.
(j) make in the strip matrix part of the surface in another face coated with the bonding agent along described defeated In the state of sending direction conveying, the surface in another face described in the bonding agent is coated with each strip matrix part The step of spreading water-absorbing polymeric particles and manufacture absorber to horizontal whole region.
Each step is illustrated below.
In (f) step, the substrate sheets 20 sent out using driven roller 151 from the blank volume of the substrate sheets 20 of banding are supplied Between multiple cutter 111a and undertaking roller 112 into the cutter device 113 of substrate sheets cutting part 110, the base of banding is cut Material piece 20 and form multiple strip matrix parts 2.In the present embodiment, as shown in figure 5, being configured at the rotation of rotating mould 111b Multiple cutter 111a in direction are respectively in orthogonal direction (the X1 side of the conveying direction (Y1 directions) of the substrate sheets 20 with banding To) on abreast configure, therefore, the substrate sheets 20 of banding are cut along the conveying direction (Y1 directions) of substrate sheets 20, and Cut on orthogonal direction (X1 directions) at multiple positions and form multiple strip matrix parts 2.In addition, it is cut knife The part of 111a cuttings becomes the side edge part 2s of strip matrix part 2.
In this manufacture method, rotating mould 111b has recess 114, therefore, in the substrate sheets 20 of transported banding, With separating the amount of the length of longitudinal Y of strip matrix part 2, form non-cutting portion NTb at intervals, the non-cutting portion NTb with 2 times of Length Quantity of the length of longitudinal Y of non-gap zone NT corresponds to.The multiple strip matrix parts 2 formed in (f) step It is formed parallel on conveying direction Y1, is arranged side by side on orthogonal direction X1.
Then, in (g) step, using first bonding agents coated portion 120 only in a face of multiple strip matrix parts 2 Surface horizontal middle section adhesive-applying 5.Multiple strip matrix parts 2 are conveyed by suction conveyor 141, positioned at During on vacuum box 145, using the applicator head 121 of first bonding agents coated portion 120, only it is being arranged side by side in orthogonal direction X1 Multiple strip matrix parts 2 a face surface middle section, in addition to non-cutting portion NTb, along conveying direction Y1 Adhesive-applying 5 at intervals.During (g) step is carried out, it can use with the applicator head 121 such as lower structure:Energy Enough on the surface in a face of transported substrate sheets 20 in one direction, applied from multiple positions on horizontal X separated by a distance Apply bonding agent 5.
In (h) step for continuing (g) step, in the face of multiple strip matrix parts 2, throughout utilizing first bonding agents Coated portion 120 with being coated with the horizontal whole region on the surface in a face of bonding agent 5, using the first water absorbent polymer dissipates Cloth portion 130 spreads water absorbent polymer 3.Strip matrix part 2 is conveyed by suction conveyor 141, on vacuum box 145 Period, along conveying direction Y1 the surface in a face throughout horizontal X whole region using the first water absorbent polymer spread Portion 130 spreads water-absorbing polymeric particles 3.But water-absorbing polymeric particles 3 are not spread in non-cutting portion NTb.The suction of distribution Polymerizable aqueous composition granule 3 only the surface in a face of multiple strip matrix parts 2 middle section via coated bonding Agent 5 is reliably fixed to strip matrix part 2.
Then, after inverting the positive back side of strip matrix part 2 using reverse roll 148, in the strip matrix part 2 Another face surface, carry out (i) and (j) step as the step identical with above-mentioned (g) and (h) step difference.Pass through This measure, forms multiple in absorbability unit obtained by the surface in each face of strip matrix part 2 fixation water-absorbing polymeric particles 3 4.The multiple absorbability units 4 being consequently formed arrange in a manner of respective longitudinal direction Y is towards conveying direction Y1, form absorber 1 Precursor 1b.
Then, by the precursor 1b of absorber 1, using driven roller 152, downstream side conveys, and (is not had using known disconnecting device Have diagram) precursor 1b is cut off in the position of two deciles of the length of the conveying direction Y1 of each non-cutting portion NTb.By This, can be continuously manufactured by the absorber 1 at the both ends of longitudinal Y with the transversely non-gap zone NT of X extensions.Thus, According to this manufacture device 100 and its this manufacture method is used, can stablize and efficiently manufacture absorber 1.Afterwards, according to public affairs The step of knowing, configures positive dough sheet by the surface side for being fixed with water-absorbing polymeric particles 3 in absorber 1, is not having Another surface side of fixed water-absorbing polymeric particles 3 sets back sheet, further configures other components, Jin Erneng as needed Access the absorbent commodity as target.
As the variation of the manufacture method with (f) to (j) step, can use by following (g ') to (j ') The method that step replaces (g) to (j) step.
(g ') make multiple strip matrix parts along the conveying direction convey in the state of, throughout each strip base In body portion the horizontal whole region on the surface in a face adhesive-applying the step of.
(h ') makes to be coated with the strip matrix part of the bonding agent on the surface in one face along described defeated In the state of sending direction conveying, it is coated with each strip matrix part in the face of the bonding agent, only in horizontal middle section The step of spreading water-absorbing polymeric particles.
(i ') make multiple strip matrix parts along the conveying direction convey in the state of, throughout each strip base The horizontal whole region on the surface in another face in body portion adhesive-applying the step of.
(j ') makes to be coated with the strip matrix part of the bonding agent in another described face along the conveying side To in the state of conveying, in the surface in another face for being coated with the bonding agent in each strip matrix part, only in transverse direction Middle section spreads water-absorbing polymeric particles, and the step of manufacture absorber.
, can be with order to carry out (h ') step in the manufacture method including (f), (g '), (h '), (i ') and (j ') step Use the water absorbent polymer distribution portion 130 with such as lower structure:Can be the one of transported substrate sheets 20 in one direction The surface in a face, water-absorbing polymeric particles 3 are applied from multiple positions on horizontal X separated by a distance.Likewise, in order to carry out (j ') step can be used with the water absorbent polymer distribution portion 130 such as lower structure:Can be transported in one direction The surface in another face of substrate sheets 20, water-absorbing polymeric particles 3 are applied from multiple positions on horizontal X separated by a distance.
More than, based on embodiment preferred for this invention, the present invention is described, and the scope of the present invention is not limited to The embodiment.Such as absorber 1 in the absorbent commodity 10 of the embodiment using multiple with clean width The absorbability unit 4 of strip matrix part 2 and formed, but replace it, can also make the width of strip matrix part 2 uneven.
In addition, absorber 1 shown in above-mentioned Fig. 2 by with the respective longitudinal direction Y of multiple absorbability units 4 towards absorber 1 The mode of longitudinal Y arrange and formed, but replace it, can also for example as shown in FIG. 7, make multiple absorbability units 4 with The mode of horizontal Xs of the respective longitudinal direction Y towards absorber 1 arranges.Absorber 1 shown in Fig. 7 includes along the both sides of longitudinal Y Non- gap zone NT.Absorber 1 shown in Fig. 7 can be by using the axial direction being configured with intervals in the circumferential with base material volume The cutting roller and undertaking roller of the cutter of configured in parallel, are made to supply substrate sheets 20 between the cutting roller and the undertaking roller Arrive.
In addition, absorber 1 can also arrange the absorption in a manner of longitudinal Y of absorbability unit 4 is towards multiple directions The structure of property unit 4.As the absorber 1 that absorbability unit 4 is arranged in a manner of towards multiple directions, it can enumerate and for example exist The both sides along longitudinal Y of the absorber 1 have longitudinal Y of multiple absorbability units 4 with respective longitudinal direction Y towards absorber 1 The region that mode is arranged and formed, and there are multiple absorbability units 4 with respective in the central portion clipped by the both sides Mode in region that the mode of longitudinal Y towards the horizontal X of absorber 1 are arranged and formed etc..It is such a to make absorbability unit 4 with direction The absorber 1 that the mode of multiple directions arranges, such as can be formed in the following way:Use the pressure-cutting type cutter shown in Fig. 5 111 and roller 112 is accepted, applied in transported substrate sheets 20 along the both sides of conveying direction Y1 along conveying direction Y1 more Bar notch, afterwards, using the cutting roller that configures at intervals in the circumferential and accepts roller, with transported substrate sheets 20 should The central portion of the orthogonal direction X1 of conveying direction applies a plurality of notch of X1 in the direction.
In addition, on the absorber 1 in the absorbent commodity 10 of the above embodiment, each absorbability unit 4 and each strip Shape matrix part 2, substantially in parallel linearly to extend, but is that instead of such a mode in longitudinal Y-direction, absorbability unit 4 and long Strip matrix part 2 can also be extended along longitudinal Y in a manner of the curve for depicting corrugated shape, or can also along longitudinal Y with The "the" shape extension of chevron.
Further, in the manufacture method of above-mentioned absorbent commodity 10, instead of water-absorbing polymeric particles 3 are used bonding agent 5 fix, and implement fluffing processing to the surface in a face of strip matrix part 2 and fix water imbibition between the fiber to have fluffed In the case of polymer beads 3, instead of above-mentioned adhesive applicating step, fluffing procedure of processing is carried out.Fluff as implementation The method of processing, can enumerate in such as Japanese Unexamined Patent Publication 2012-092476 publications, Japanese Unexamined Patent Publication 2013-028891 publications Method of record etc..
On the above embodiment, the present invention further discloses following absorbent commodity.
<1>
A kind of absorbent commodity, it includes the absorber with multiple absorbability units, which includes:Have Laterally, the strip matrix part of the longer longitudinal direction of length and thickness direction compared with this is horizontal;Be fixed on the strip matrix The water-absorbing polymeric particles on the surface in portion, in the absorber, respectively the absorbability unit is longitudinally oriented at least one side with it To mode arrange,
The surface both skin opposite face and non-skin opposite face in the strip matrix part is fixed with described Water-absorbing polymeric particles,
Before the water-absorbing polymeric particles absorb liquid, which is not protruding to super in the horizontal Cross the strip matrix part along longitudinal side edge part, and the water-absorbing polymeric particles absorb liquid after, the suction Polymerizable aqueous composition granule it is non-swelling to exceed the strip matrix part along longitudinal side edge part.
<2>
It is such as above-mentioned<1>The absorbent commodity, in the absorber, at the position formed with the absorbability unit, The absorbability unit is with other components in the opposite surface side of skin and the absorbability cell abutment or in non-skin with respect to surface side Other components with the absorbability cell abutment are disengaged condition.
<3>
It is such as above-mentioned<1>Or<2>The absorbent commodity, longitudinal end regions of the absorber are opposite with skin Surface side is with other components that the absorber abuts or in other components that the opposite surface side of non-skin and the absorber abut to connect Conjunction state.
<4>
It is such as above-mentioned<1>~<3>Any one of absorbent commodity, the absorber is in its longitudinal end regions bag Include the non-gap zone for not configuring the strip matrix part.
<5>
It is such as above-mentioned<1>~<4>Any one of absorbent commodity, the absorber in its longitudinal end regions not Configure the water-absorbing polymeric particles.
<6>
It is such as above-mentioned<1>~<5>Any one of absorbent commodity, the strip matrix part include it is hydrophobic Piece.
<7>
It is such as above-mentioned<1>~<6>Any one of absorbent commodity, be fixed on the suction of the strip matrix part In waterborne polymeric, the non-skin for being fixed on the strip matrix part is fixed on respect to the grammes per square metre ratio of the water absorbent polymer of surface side The skin of the strip matrix part is high with respect to the grammes per square metre of the water absorbent polymer of surface side.
<8>
It is such as above-mentioned<1>~<7>Any one of absorbent commodity, be fixed on the skin phase of the strip matrix part The water absorbent polymer of the water absorbent polymer of opposite side surface side opposite with the non-skin for being fixed on the strip matrix part is not Same species.
<9>
It is such as above-mentioned<1>~<8>Any one of absorbent commodity, the length Lx of the horizontal X of absorbability unit is preferred For the degree of the degree of more than 0.3mm below 10mm, more preferably more than 0.6mm below 2.0mm, more preferably 0.6mm The degree of below above 1.8mm.
<10>
It is such as above-mentioned<1>~<9>Any one of absorbent commodity, the length Ly of longitudinal Y of absorbability unit is opposite It is preferably less than more than 2 times 3500 times in the length Lx of horizontal X, is more preferably less than more than 100 times 700 times.
<11>
It is such as above-mentioned<1>~<10>Any one of absorbent commodity, the length Ly of longitudinal Y of absorbability unit is preferred For more than 20mm below 1000mm, more preferably more than 200mm below 400mm.
<12>
It is such as above-mentioned<1>~<11>Any one of absorbent commodity, when overlooking absorber, the face of absorption region AT The ratio of product and the entire area of the absorber is preferably more than 20%, and more preferably more than 50%, also, preferably 100% Hereinafter, it is more preferably less than 90%.
<13>
It is such as above-mentioned<1>~<12>Any one of absorbent commodity, absorbability unit is configured at throughout absorber Whole region between the both ends of longitudinal Y.
<14>
It is such as above-mentioned<1>~<13>Any one of absorbent commodity, with absorbability unit longitudinal Y towards absorb When the mode of longitudinal Y of body configures, absorbability unit is preferably configured with more than 3 in each absorber, is more preferably configured with More than 50, also, less than 1000 are preferable configured with, more preferably it is configured with less than 500.
<15>
It is such as above-mentioned<1>~<14>Any one of absorbent commodity, the side of strip matrix part be there is no The state or water-absorbing polymeric particles of water-absorbing polymeric particles be not by fixed state.
<16>
It is such as above-mentioned<1>~<15>Any one of absorbent commodity, water-absorbing polymeric particles absorb liquid before State, generate a gap S between the adjacent absorbability units of transversely X.
<17>
It is such as above-mentioned<16>The absorbent commodity, the size degree of gap S is preferably more than 0.1mm, more preferably More than 0.5mm, additionally, it is preferred that be below 5mm, more preferably below 3mm.
<18>
It is such as above-mentioned<1>~<17>Any one of absorbent commodity, in absorber, the width of strip matrix part W2 is preferably more than 0.001 relative to the ratio of the width W1 of absorber, and more preferably more than 0.002, also, be preferably Less than 0.200, more preferably less than 0.040.
<19>
It is such as above-mentioned<1>~<18>Any one of absorbent commodity, the width W2 of strip matrix part is preferably More than 0.3mm, more preferably more than 0.6mm, also, preferably below 10mm, more preferably below 2.0mm, further preferably For below 1.8mm.
<20>
It is such as above-mentioned<1>~<19>Any one of absorbent commodity, the skin for being fixed on strip matrix part is opposite The water absorbent polymer of surface side, it is preferably more than 20ml/min to lead to liquid speed degree under the pressurization of 2.0kPa, more preferably 40ml/ More than min, also, preferably below 1000ml/min, more preferably below 800ml/min.
<21>
It is such as above-mentioned<1>~<20>Any one of absorbent commodity, be fixed on the non-skin phase of strip matrix part The water absorbent polymer of opposite side, it is preferably more than 0ml/min to lead to liquid speed degree under the pressurization of 2.0kPa, more preferably 10ml/ More than min, also, preferably below 400ml/min, more preferably below 200ml/min.
<22>
It is such as above-mentioned<1>~<21>Any one of absorbent commodity, the skin for being fixed on strip matrix part is opposite The water absorbent polymer of surface side, centrifugation maintenance dose is preferably more than 20g/g, more preferably more than 25g/g, also, is preferably Below 50g/g, more preferably below 45g/g.
<23>
It is such as above-mentioned<1>~<22>Any one of absorbent commodity, be fixed on the non-skin phase of strip matrix part The water absorbent polymer of opposite side, centrifugation maintenance dose is preferably more than 25g/g, more preferably more than 30g/g, also, is preferably Below 65g/g, more preferably below 55g/g.
<24>
It is such as above-mentioned<1>~<23>Any one of absorbent commodity, compared to skin with respect to surface side, be fixed on non-flesh When skin is higher with respect to the grammes per square metre of the water absorbent polymer of surface side, grammes per square metre of the non-skin with respect to the water absorbent polymer of surface side is fixed on The ratio i.e. value of B2/B1 of the grammes per square metre B1 of the water absorbent polymer of B2 surface sides opposite with being fixed on skin is preferably more than 1.05, more Preferably more than 1.7, additionally, it is preferred that be less than 40, more preferably less than 10.
<25>
It is such as above-mentioned<1>~<24>Any one of absorbent commodity, absorb liquid before state water-absorbent polymeric The average grain diameter d1 of composition granule is preferably more than 20 μm, more preferably more than 200 μm, also, preferably less than 3000 μm, more excellent Elect less than 2000 μm as.
<26>
It is such as above-mentioned<1>~<25>Any one of absorbent commodity, the water imbibition of state for absorbing liquid and being swollen The average grain diameter d2 of polymer beads is preferably more than 200 μm, more preferably more than 800 μm, also, preferably 3000 μm with Under, more preferably less than 2000 μm.
<27>
It is such as above-mentioned<1>~<27>Any one of absorbent commodity, the width W2 and absorbing liquid of strip matrix part The relation of the average grain diameter d1 of the water-absorbing polymeric particles of state before body is that the value of d1/W2 is preferably more than 0.002, more Preferably more than 0.100, also, preferably less than 0.900, more preferably less than 0.800.
<28>
It is such as above-mentioned<1>~<28>Any one of absorbent commodity, the width W2 and absorbing liquid of strip matrix part The relation of the average grain diameter d2 of the water-absorbing polymeric particles of state after body is that the value of d2/W2 is preferably more than 0.02, more excellent Elect more than 0.45 as, additionally, it is preferred that be less than 0.90, more preferably less than 0.80.
<29>
A kind of manufacture method of absorbent commodity, it includes the following steps:
On the surface in a face of the substrate sheets of transported strip matrix part in one direction, separate in its transverse direction Multiple position adhesive-applyings of distance,
Make the substrate sheets in the strip matrix part of the surface in one face coated with the bonding agent along institute In the state of stating conveying direction conveying, one face coated with the bonding agent in the substrate sheets of the strip matrix part Surface, water-absorbing polymeric particles are spread in its horizontal whole region,
In the state of the substrate sheets of the strip matrix part is conveyed along the conveying direction, in the strip base The surface in another face of the substrate sheets in body portion, multiple position adhesive-applyings separated by a distance in its transverse direction,
Make on the substrate sheets edge of the strip matrix part of the surface in another face coated with the bonding agent In the state of conveying direction conveying, in the substrate sheets of the strip matrix part coated with described in the bonding agent another The surface in face, water-absorbing polymeric particles are spread in its horizontal whole region,
Make to be scattered with the substrate sheets of the strip matrix part of the water-absorbing polymeric particles in each face described in In the state of conveying direction conveying, the uncoated position between the position coated with the bonding agent, applies along the conveying direction Notch, obtains narrow multiple strip matrix parts, and manufactures absorber.
<30>
A kind of manufacture method of absorbent commodity, it includes the following steps:
It is horizontal at it on the surface in a face of the substrate sheets of transported hydrophilic strip matrix part in one direction To whole region adhesive-applying,
Make the substrate sheets in the strip matrix part of the surface in one face coated with the bonding agent along institute In the state of stating conveying direction conveying, one face coated with the bonding agent in the substrate sheets of the strip matrix part Multiple positions in the transverse direction on surface separated by a distance spread water-absorbing polymeric particles,
In the state of the substrate sheets of the strip matrix part is conveyed along the conveying direction, in the strip base The surface in another face of the substrate sheets in body portion, in its horizontal whole region adhesive-applying,
Make on the substrate sheets edge of the strip matrix part of the surface in another face coated with the bonding agent In the state of conveying direction conveying, in the substrate sheets of the strip matrix part coated with described in the bonding agent another Multiple positions in the transverse direction on the surface in face separated by a distance spread water-absorbing polymeric particles,
Make to be scattered with the substrate sheets of the strip matrix part of the water-absorbing polymeric particles in each face described in In the state of conveying direction conveying, the non-distribution position between the position of the water-absorbing polymeric particles is scattered with is defeated along this Send direction to apply notch, obtain narrow multiple strip matrix parts, and manufacture absorber.
<31>
A kind of manufacture method of absorbent commodity, it includes the following steps:
The a plurality of notch along its conveying direction is applied to the substrate sheets of transported strip matrix part in one direction, is obtained To narrow multiple strip matrix parts,
In the state of multiple strip matrix parts is conveyed along the conveying direction, only in each strip matrix part In a face surface horizontal middle section adhesive-applying,
Make in the strip matrix part of the surface in one face coated with the bonding agent along the conveying side To in the state of conveying, the surface in one face coated with the bonding agent is horizontal whole in each strip matrix part Region spreads water-absorbing polymeric particles,
In the state of multiple strip matrix parts is conveyed along the conveying direction, only in each strip matrix part In another face surface horizontal middle section adhesive-applying,
Make in the strip matrix part of the surface in another face coated with the bonding agent along the conveying It is horizontal coated with the surface in another face described in the bonding agent in each strip matrix part in the state of the conveying of direction Whole region spreads water-absorbing polymeric particles, and manufactures absorber.
<32>
A kind of manufacture method of absorbent commodity, it includes the following steps:
The a plurality of notch along its conveying direction is applied to the substrate sheets of transported strip matrix part in one direction, is obtained To narrow multiple strip matrix parts,
In the state of multiple strip matrix parts is conveyed along the conveying direction, in each strip matrix part A face surface horizontal whole region adhesive-applying,
Make in the strip matrix part of the surface in one face coated with the bonding agent along the conveying side To in the state of conveying, only in each strip matrix part coated with the bonding agent one face surface it is horizontal in Region is entreated to spread water-absorbing polymeric particles,
In the state of multiple strip matrix parts is conveyed along the conveying direction, in each strip matrix part Another face surface horizontal whole region adhesive-applying,
Make in the strip matrix part of the surface in another face coated with the bonding agent along the conveying In the state of the conveying of direction, the transverse direction on the surface in another face described in the bonding agent is coated with only in each strip matrix part Middle section spread water-absorbing polymeric particles, and manufacture absorber.
Industrial utilization possibility
According to the present invention, even in because absorbing after liquid and water-absorbing polymeric particles are swollen, the liquid of excretion It can be passed through by the gap between absorbability unit, therefore be not easy to hinder the transmission of liquid.Therefore, it is possible to efficiently use fixation Both water-absorbing polymeric particles in the surface of the top and bottom of strip matrix part.In addition, even in water absorbent polymer After particle is swollen, water-absorbing polymeric particles are also not present between absorbability unit, therefore are not easy to hinder absorbability unit Between liquid diffusion, the whole region of absorber can be efficiently used to absorb holding liquid.Further, by strip Water-absorbing polymeric particles are fixed on the surface of the top and bottom of matrix part, and the liquid drained for low viscosities such as urine and at a high speed, absorbs Body can temporarily store the liquid, therefore be not easy to cause liquid leakage.

Claims (32)

  1. A kind of 1. absorbent commodity, it is characterised in that:
    Including the absorber with multiple absorbability units, which includes:With laterally, with this laterally compared with length Longer longitudinal direction and the strip matrix part of thickness direction;With the water absorbent polymer on the surface of being fixed on the strip matrix part Particle, in the absorber, respectively the absorbability unit arranges in a manner of it is longitudinally oriented at least one direction,
    The surface both skin opposite face and non-skin opposite face in the strip matrix part is fixed with the water suction Property polymer beads,
    Before the water-absorbing polymeric particles absorb liquid, which is not protruding to more than institute in the horizontal State strip matrix part along longitudinal side edge part, and the water-absorbing polymeric particles absorb liquid after, the water imbibition Polymer beads also it is non-swelling to exceed the strip matrix part along longitudinal side edge part.
  2. 2. absorbent commodity as claimed in claim 1, it is characterised in that:
    In the absorber, at the position formed with the absorbability unit, the absorbability unit with the opposite surface side of skin with Other components of the absorbability cell abutment in non-skin are with respect to surface side and other components of the absorbability cell abutment Disengaged condition.
  3. 3. absorbent commodity as claimed in claim 1 or 2, it is characterised in that:
    Longitudinal end regions of the absorber and other components of the skin with respect to the adjoining of surface side and the absorber or Non- skin is engagement state with respect to other components of surface side and absorber adjoining.
  4. 4. such as absorbent commodity according to any one of claims 1 to 3, it is characterised in that:
    The absorber includes not configuring the non-gap zone of the strip matrix part in its longitudinal end regions.
  5. 5. such as absorbent commodity according to any one of claims 1 to 4, it is characterised in that:
    The absorber does not configure the water-absorbing polymeric particles in its longitudinal end regions.
  6. 6. such as absorbent commodity according to any one of claims 1 to 5, it is characterised in that:
    The strip matrix part includes hydrophobic.
  7. 7. such as absorbent commodity according to any one of claims 1 to 6, it is characterised in that:
    It is fixed in the water absorbent polymer of the strip matrix part, is fixed on the non-skin phase of the strip matrix part Skin water absorbent polymer with respect to surface side of the grammes per square metre of the water absorbent polymer of opposite side than being fixed on the strip matrix part Grammes per square metre it is high.
  8. 8. such as absorbent commodity according to any one of claims 1 to 7, it is characterised in that:
    It is fixed on the water absorbent polymer of the skin of the strip matrix part with respect to surface side and is fixed on the strip base The non-skin in body portion is variety classes with respect to the water absorbent polymer of surface side.
  9. 9. such as absorbent commodity according to any one of claims 1 to 8, it is characterised in that:
    The length Lx of the horizontal X of the absorbability unit is more than 0.3mm below 10mm.
  10. 10. such as absorbent commodity according to any one of claims 1 to 9, it is characterised in that:
    The length Ly of longitudinal Y of the absorbability unit is preferably less than more than 2 times 3500 times relative to the length Lx of horizontal X.
  11. 11. such as absorbent commodity according to any one of claims 1 to 10, it is characterised in that:
    The length Ly of longitudinal Y of the absorbability unit is more than 20mm below 1000mm.
  12. 12. the absorbent commodity as any one of claim 1~11, it is characterised in that:
    When overlooking the absorber, the area of absorption region AT relative to the ratio of the entire area of the absorber for 20% with Upper less than 100%.
  13. 13. the absorbent commodity as any one of claim 1~12, it is characterised in that:
    The absorbability unit is configured at the whole region between the both ends of longitudinal Y of the absorber.
  14. 14. the absorbent commodity as any one of claim 1~13, it is characterised in that:
    When the absorbability unit is configured in a manner of its longitudinal direction Y is towards longitudinal Y of the absorber, the absorbability unit Less than more than 3 1000 are configured with each absorber.
  15. 15. the absorbent commodity as any one of claim 1~14, it is characterised in that:
    Become the state or water absorbent polymer there is no water-absorbing polymeric particles in the side of the strip matrix part Particle is not by fixed state.
  16. 16. the absorbent commodity as any one of claim 1~15, it is characterised in that:
    State before the water-absorbing polymeric particles absorb liquid, between the adjacent absorbability units of transversely X There are gap S.
  17. 17. absorbent commodity as claimed in claim 16, it is characterised in that:
    The size degree of the gap S is more than 0.1mm below 5mm.
  18. 18. the absorbent commodity as any one of claim 1~17, it is characterised in that:
    In the absorber, the width W2 of the strip matrix part is relative to the ratio of the width W1 of the absorber Less than more than 0.001 0.200.
  19. 19. the absorbent commodity as any one of claim 1~18, it is characterised in that:
    The width W2 of the strip matrix part is more than 0.3mm below 10mm.
  20. 20. the absorbent commodity as any one of claim 1~19, it is characterised in that:
    The skin for being fixed on the strip matrix part leads to respect to the water absorbent polymer of surface side under the pressurization of 2.0kPa Liquid speed degree is more than 20ml/min below 1000ml/min.
  21. 21. the absorbent commodity as any one of claim 1~20, it is characterised in that:
    The non-skin of the strip matrix part is fixed on respect to the water absorbent polymer of surface side under the pressurization of 2.0kPa Logical liquid speed degree is more than 0ml/min below 400ml/min.
  22. 22. the absorbent commodity as any one of claim 1~21, it is characterised in that:
    It is 20g/g to be fixed on the skin of the strip matrix part with respect to the centrifugation maintenance dose of the water absorbent polymer of surface side Below above 50g/g.
  23. 23. the absorbent commodity as any one of claim 1~22, it is characterised in that:
    The non-skin for being fixed on the strip matrix part is with respect to the centrifugation maintenance dose of the water absorbent polymer of surface side More than 25g/g below 65g/g.
  24. 24. the absorbent commodity as any one of claim 1~23, it is characterised in that:
    Compared to skin with respect to surface side, be fixed on non-skin it is higher with respect to the grammes per square metre of the water absorbent polymer of surface side when, Gu Due to the water imbibition of the non-skin with respect to the grammes per square metre B2 surface sides opposite with being fixed on skin of the water absorbent polymer of surface side The value of ratio, that is, B2/B1 of the grammes per square metre B1 of polymer is less than more than 1.05 40.
  25. 25. the absorbent commodity as any one of claim 1~24, it is characterised in that:
    The average grain diameter d1 for absorbing the water-absorbing polymeric particles of the state before liquid is less than more than 20 μm 3000 μm.
  26. 26. the absorbent commodity as any one of claim 1~25, it is characterised in that:
    The average grain diameter d2 of the water-absorbing polymeric particles for the state for absorbing liquid and being swollen is more than 200 μm 3000 μm Below.
  27. 27. the absorbent commodity as any one of claim 1~26, it is characterised in that:
    The average grain of the width W2 of the strip matrix part and the water-absorbing polymeric particles of the state before absorption liquid The relation of footpath d1 is that the value of d1/W2 is less than more than 0.002 0.900.
  28. 28. the absorbent commodity as any one of claim 1~27, it is characterised in that:
    The average grain of the width W2 of the strip matrix part and the water-absorbing polymeric particles of the state after absorption liquid The relation of footpath d2 is that the value of d2/W2 is less than more than 0.02 0.90.
  29. 29. a kind of manufacture method of absorbent commodity, it is characterised in that include the following steps:
    On the surface in a face of the substrate sheets of transported strip matrix part in one direction, in its transverse direction separated by a distance Multiple position adhesive-applyings,
    Make the substrate sheets in the strip matrix part of the surface in one face coated with the bonding agent along described defeated In the state of sending direction conveying, the table in one face coated with the bonding agent in the substrate sheets of the strip matrix part Face, water-absorbing polymeric particles are spread in its horizontal whole region,
    In the state of the substrate sheets of the strip matrix part is conveyed along the conveying direction, in the strip matrix part Substrate sheets another face surface, multiple position adhesive-applyings separated by a distance in its transverse direction,
    Make the substrate sheets in the strip matrix part of the surface in another face coated with the bonding agent described in In the state of conveying direction conveying, another face described in the bonding agent is coated with the substrate sheets of the strip matrix part Surface, water-absorbing polymeric particles are spread in its horizontal whole region,
    Make to be scattered with the substrate sheets of the strip matrix part of the water-absorbing polymeric particles in each face along the conveying In the state of the conveying of direction, the uncoated position between the position coated with the bonding agent, applies notch along the conveying direction, Narrow multiple strip matrix parts are obtained, and manufacture absorber.
  30. 30. a kind of manufacture method of absorbent commodity, it is characterised in that include the following steps:
    On the surface in a face of the substrate sheets of transported hydrophilic strip matrix part in one direction, horizontal at it Whole region adhesive-applying,
    Make the substrate sheets in the strip matrix part of the surface in one face coated with the bonding agent along described defeated In the state of sending direction conveying, the surface in one face coated with the bonding agent in the substrate sheets of the strip matrix part Transverse direction on multiple positions separated by a distance spread water-absorbing polymeric particles,
    In the state of the substrate sheets of the strip matrix part is conveyed along the conveying direction, in the strip matrix part Substrate sheets another face surface, in its horizontal whole region adhesive-applying,
    Make the substrate sheets in the strip matrix part of the surface in another face coated with the bonding agent described in In the state of conveying direction conveying, another face described in the bonding agent is coated with the substrate sheets of the strip matrix part Multiple positions in the transverse direction on surface separated by a distance spread water-absorbing polymeric particles,
    Make to be scattered with the substrate sheets of the strip matrix part of the water-absorbing polymeric particles in each face along the conveying In the state of the conveying of direction, the non-distribution position between the position of the water-absorbing polymeric particles is scattered with, along the conveying side To notch is applied, narrow multiple strip matrix parts are obtained, and manufacture absorber.
  31. 31. a kind of manufacture method of absorbent commodity, it is characterised in that include the following steps:
    The a plurality of notch along its conveying direction is applied to the substrate sheets of transported strip matrix part in one direction, is obtained narrow Multiple strip matrix parts of width,
    In the state of multiple strip matrix parts is conveyed along the conveying direction, only in each strip matrix part The horizontal middle section adhesive-applying on the surface in one face,
    Making, the strip matrix part that the bonding agent is coated with the surface in one face is defeated along the conveying direction In the state of sending, the horizontal whole region on the surface in one face coated with the bonding agent in each strip matrix part Spread water-absorbing polymeric particles,
    In the state of multiple strip matrix parts is conveyed along the conveying direction, only in each strip matrix part The horizontal middle section adhesive-applying on the surface in another face,
    Make in the strip matrix part of the surface in another face coated with the bonding agent along the conveying direction It is horizontal whole coated with the surface in another face described in the bonding agent in each strip matrix part in the state of conveying Region spreads water-absorbing polymeric particles, and manufactures absorber.
  32. 32. a kind of manufacture method of absorbent commodity, it is characterised in that include the following steps:
    The a plurality of notch along its conveying direction is applied to the substrate sheets of transported strip matrix part in one direction, is obtained narrow Multiple strip matrix parts of width,
    In the state of multiple strip matrix parts is conveyed along the conveying direction, one in each strip matrix part The horizontal whole region adhesive-applying on the surface in a face,
    Making, the strip matrix part that the bonding agent is coated with the surface in one face is defeated along the conveying direction In the state of sending, the horizontal central area on the surface in one face coated with the bonding agent only in each strip matrix part Domain spreads water-absorbing polymeric particles,
    It is another in each strip matrix part in the state of multiple strip matrix parts is conveyed along the conveying direction The horizontal whole region adhesive-applying on the surface in one face,
    Make in the strip matrix part of the surface in another face coated with the bonding agent along the conveying direction In the state of conveying, only in each strip matrix part coated with the surface in another face described in the bonding agent it is horizontal in Entreat region to spread water-absorbing polymeric particles, and manufacture absorber.
CN201680049921.4A 2015-10-07 2016-10-06 Absorbent article Active CN107920942B (en)

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JP2015-199373 2015-10-07
JP2015199373A JP6835464B2 (en) 2015-10-07 2015-10-07 Absorbent article
PCT/JP2016/079842 WO2017061565A1 (en) 2015-10-07 2016-10-06 Absorbent article

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TWI737632B (en) 2015-10-07 2021-09-01 日商花王股份有限公司 Flake and its manufacturing method
TWI707671B (en) 2015-10-07 2020-10-21 日商花王股份有限公司 Flake and its manufacturing method
JP7134151B2 (en) * 2019-09-30 2022-09-09 ユニ・チャーム株式会社 absorbent article

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US20040127874A1 (en) * 2001-02-02 2004-07-01 Kazunori Nishizawa Body fluid absorbing article and method of manufacturing the article
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JP2017070497A (en) 2017-04-13

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