CN104768508A - Absorptive article - Google Patents
Absorptive article Download PDFInfo
- Publication number
- CN104768508A CN104768508A CN201380056845.6A CN201380056845A CN104768508A CN 104768508 A CN104768508 A CN 104768508A CN 201380056845 A CN201380056845 A CN 201380056845A CN 104768508 A CN104768508 A CN 104768508A
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- China
- Prior art keywords
- per square
- square metre
- grammes per
- middle section
- absorbent core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
- A61F13/47218—Sanitary towels, incontinence pads or napkins specially adapted for female use with a raised crotch region, e.g. hump
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
- A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
- A61F13/533—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having discontinuous areas of compression
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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
An absorptive article provided with: an absorptive core (4) which is shaped so as to be long in the front-rear direction of the absorptive article. The absorptive core (4) has arranged in the widthwise direction thereof a central region (41) and side regions (45, 45) which are located on both sides of the central region (41). The central region (41) has a protrusion (5) which protrudes further upward than the upper surfaces of the side regions. In the absorptive core (4), the central region (41) and the side regions (45) are formed integrally with each other. Lateral grooves (44) extending in the widthwise direction of the absorptive core are formed in the skin-contact surface of the absorptive core (4) in such a manner that the lateral grooves (44) extend continuously from the central region (41) to the side regions (45). The lateral grooves (44) are formed by reducing the weighed amount of a material which forms the absorptive core. In each of the lateral grooves (44), the bottom sections (44d) of portions (P1) of the central region (41), the portions (P1) being adjacent to the side regions (45), are located below the upper surfaces (S2) of the side regions (45).
Description
Technical field
The present invention relates to the absorbent commodities such as a kind of sanitary napkin, sanitary pad's (vaginal secretions protective pad), incontinence protection.
Background technology
Previously, known absorber in the absorbent commodities such as sanitary napkin, had arranged protrusion in the mode of the concaveconvex shape of the skin according to wearer, in addition, also known to this protrusion formation groove.Such as, in patent documentation 1,2, announcement has the absorber comprising the protrusion with groove near the central part of absorber.
Prior art document
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2009-112590 publication
Patent documentation 2: Japanese Patent Laid-Open 2012-125366 publication
Absorber in patent documentation 1 has the stromatolithic structure of the upper and lower and the middle section being formed with protrusion residing for upper strata is formed with recess throughout levels.But, this recess is processed by hot pressing stricture of vagina and is formed, by densification near the bottom of therefore recess, therefore liquid is from being difficult near the bottom of recess spread to other parts, rewetting prevent effective application of the absorptive capacity of performance, absorber in tool there is room for improvement.
In addition, in patent documentation 2, disclose the absorber had at the protuberance with multiple bulk, the protrusion comprising multiple protuberance is similarly set.But, there is no any enlightenment about the degree of depth of the groove between the protuberance of the bulk be formed in protrusion being set to the content arriving the degree of depth of below from the surface at the position beyond protrusion.
Summary of the invention
Therefore, problem of the present invention is to provide a kind of absorbent commodity eliminating the shortcoming that above-mentioned prior art has.
The present invention relates to a kind of absorbent commodity being included in the absorbent core of shape longer on the fore-and-aft direction of absorbent commodity.Above-mentioned absorbent core comprises middle section in its width direction and is positioned at the region, side of its both sides, and this middle section comprises the protuberance more outstanding than this region, side upper surface separately.In above-mentioned absorbent core above-mentioned middle section and region, above-mentioned side integrally formed.In the skin abutment face of above-mentioned absorbent core, the multiple translots along the width of this absorbent core are formed from above-mentioned middle section continuously to region, above-mentioned side respectively.Above-mentioned translot is formed by reducing the grammes per square metre of the formation material of absorbent core, and in this translot, above-mentioned middle section with the bottom in the position of above-mentioned side area adjacency, be positioned at the upper surface position on the lower than this region, side.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the sanitary napkin represented as the first embodiment of the present invention.
Fig. 2 (a) is the IIa-IIa sectional view of Fig. 1, and Fig. 2 (b) is the IIb-IIb sectional view of Fig. 1.
Fig. 3 (a) is the IIIa-IIIa sectional view of Fig. 1, and Fig. 3 (b) is the IIIb-IIIb sectional view of Fig. 1.
Fig. 4 is the schematic diagram of the deformation state of the absorbent core of the wearing effect of the sanitary napkin representing Fig. 1.
Fig. 5 is the schematic diagram in the cross section of the circumference representing the long-pending fine cylinder preferably used in the manufacture of the absorbent core at the sanitary napkin shown in Fig. 1.
Fig. 6 is the axonometric chart of the sanitary napkin represented as the second embodiment of the present invention.
Fig. 7 (a) is the VIIa-VIIa sectional view of Fig. 6, and Fig. 6 (b) is the VIIb-VIIb sectional view of Fig. 6.
Fig. 8 is the axonometric chart of the sanitary napkin represented as the 3rd embodiment of the present invention.
Fig. 9 (a) is the IXa-IXa sectional view of Fig. 8, and Fig. 9 (b) is the IXb-IXb sectional view of Fig. 8.
Detailed description of the invention
Below, based on preferred embodiment of the present invention, the present invention will be described with reference to accompanying drawing one side for one side.
Sanitary napkin 1 (following, to be sometimes also only called sanitary towel 1) as the first embodiment of absorbent commodity of the present invention is the overnight hygienic band that applicable h.d. uses.
As shown in Figure 1, sanitary towel 1 comprises: the absorbent main body 6 of shape longer in the longitudinal direction; A pair flank section 7,7; With a pair rear alar part 8,8.About absorbent commodities such as sanitary napkins, so-called " fore-and-aft direction " refers to the direction consistent with the fore-and-aft direction of wearer when wearing.
Absorbent main body 6 comprises front part A, fluid drainage portion counterpart B and rear quadrate part C in their length direction, has a pair flank section 7,7 in the left and right sides of fluid drainage portion counterpart B, alar part 8,8 after the left and right sides of portion C has a pair in the wings.Fluid drainage portion counterpart B is the part be oppositely disposed at the central part of width and the fluid drainage portion (vaginal orifice) of wearer, front part A is configured in than the part of fluid drainage portion counterpart B by the front side (veutro) of wearer, and rear quadrate part C is configured in than the part of fluid drainage portion counterpart B by the side, back of wearer.
Sanitary towel 1 comprises: skin lateral plate 2, and it forms the skin abutment face towards the skin side of wearer when wearing; Non-skin lateral plate 3, it forms the non-skin abutment face towards garment side such as medicated underpants when wearing; With absorbent core 4, it is configured between these two sheets 2,3.Skin lateral plate 2 comprises the positive dough sheet 2a of liquid permeability and is engaged in a pair stereo enclosure formation sheet 2b, 2b of its both sides.The positive dough sheet 2a of liquid permeability is configured in the central part of the width of absorbent main body 6 in the mode of the total length throughout absorbent main body 6.Stereo enclosure formation sheet 2b overlaps the state on positive dough sheet 2a with the side edge part 21 of the width center side by absorbent main body, engaging from the position of this side edge part 21 slightly by the outside of width with this positive dough sheet 2a.Stereo enclosure formation sheet 2b comprises stereo enclosure formation elastomeric element (non-icon) near above-mentioned side edge part 21, when wearing, utilize the contractility of this elastomeric element, the part of this side edge part 21 Rack of the distance in fluid drainage portion counterpart B erects in the mode left from positive dough sheet 2a and forms stereo enclosure.
A pair flank section 7,7 and the stereo enclosure that a pair alar part 8,8 is extended by the both side edges from absorbent core 4 are afterwards formed and are formed with sheet 2b and non-skin lateral plate 3.In the face formed by non-skin lateral plate 3 that a pair flank section 7 is respective, be provided with the flank section adhesive portion (not shown) of the non-skin abutment face of the crotch part being fixed on medicated underpants, in the non-skin abutment face of absorbent main body 6, be provided with the main body adhesive portion (not shown) in order to this main body 6 to be fixed on the inner surface of medicated underpants.Rear alar part 8 is configured in when wearing on the inner surface (skin abutment face) of medicated underpants.Be preferably, in the face formed by non-skin lateral plate 3 of rear alar part 8, be also provided with the adhesive portion of the inner surface being fixed on medicated underpants.Skin lateral plate 2 and non-skin lateral plate 3 utilize bonding agent the part in the outer part of the circumference than absorbent core 4 to be bonded with each other, and engage by sealing at the circumference of sanitary towel 1.Be preferably, also utilize between skin lateral plate 2 and absorbent core 4, between absorbent core 4 and non-skin lateral plate 3 and apply as the bonding agent of the patterns such as point, spiral, striped and being bonded with each other.
Absorbent core 4 in sanitary towel 1 comprises the fiber assembly of the fibrous materials such as paper pulp fiber or between the fiber of this fiber assembly, maintains the structure of high water absorbency polymer.Absorbent core 4 is by clad sheet (omitting diagram) the coated upper and lower surface comprising cotton paper or water penetration non-woven fabrics.Clad sheet is for the purpose of the conformality preventing the formation material of absorbent core from spilling, improving absorbent core and use.
As shown in Figure 1, the absorbent core 4 in sanitary towel 1 has shape longer on the direction identical with the fore-and-aft direction of sanitary towel 1.In addition, as shown in Fig. 2 (a) He Fig. 2 (b), absorbent core 4 comprises middle section 41 at width Y and is positioned at the region, side 45,45 of its both sides, and this middle section 41 comprises the protuberance 5 more outstanding than this region, side 45,45 respective upper surface S2, S2.
Sanitary towel 1 by there is the protuberance 5 of absorbent core 4 under positive dough sheet 2a, and forms the protrusion 11 outstanding to the skin side of wearer at the width central part of skin abutment face.
In addition, the width W 1 (with reference to Fig. 2 (a)) of protuberance 5 is preferably more than 20% relative to the ratio of the whole width W 2 of absorbent core, be more preferably more than 30%, in addition, be preferably less than 80%, be more preferably less than 70%, in addition, be preferably more than 20% and less than 80%, be more preferably more than 30% and less than 70%.
As shown in Figure 1, the protuberance 5 of the absorbent core 4 in sanitary towel 1 and the protrusion 11 utilizing this protuberance 5 and formed have shape longer on the length direction of absorbent core, and are formed into a part of rear quadrate part C from the fluid drainage portion counterpart B of sanitary towel 1.More specifically, be formed in rear quadrate part C near the leading section of fluid drainage portion counterpart B than in the scope of X-direction central part slightly by the position at rear.
Protuberance 5 and protrusion 11 are preferably formed into a part of rear quadrate part C on the fore-and-aft direction X of sanitary towel 1 (absorbent commodity) from fluid drainage portion counterpart B.In addition, protuberance 5 and protrusion 11 are preferably formed with the length of more than 30% of the total length of the fore-and-aft direction X of sanitary towel 1, more preferably formed with the length of more than 40% of the total length of sanitary towel 1, and then preferably formed with the length of more than 50% of the total length of sanitary towel 1.
As shown in Fig. 3 (a), in the middle section 41 of absorbent core 4, the length direction X of absorbent core 4 is alternately formed the low grammes per square metre portion 43 of the bottom of high grammes per square metre portion 42 and formation translot 44, and each low grammes per square metre portion 43 extends along the width Y of absorbent core 4.High grammes per square metre portion 42 is compared with low grammes per square metre portion 43, the part that the grammes per square metre of the formation material of absorbent core is relatively high, and low grammes per square metre portion 43 is compared with high grammes per square metre portion 42, the part that the grammes per square metre of the formation material of absorbent core is relatively low.
The middle section 41 of absorbent core 4 is pressurized in the step manufacturing absorbent core 4.Now, because pressurizeing, the pressure brought concentrates on the thicker high grammes per square metre portion 42 of thickness, and the low grammes per square metre portion 43 of thinner thickness is not subject to the pressure because pressurization brings and is not compressed.Like this, design in the mode making high grammes per square metre portion 42 improve the density of absorption piece relative to low grammes per square metre portion 43 by only compressing high grammes per square metre portion 42.
The region, side 45 of absorbent core 4 is pressurized in the step different from the step of pressurize to middle section 41 (compacting).Because pressurizeing, the pressure brought concentrates on the thicker high grammes per square metre portion 46 of thickness, and the low grammes per square metre portion 47 of thinner thickness is not subject to the pressure because pressurization brings and is not compressed.Like this, design in the mode making high grammes per square metre portion 46 higher relative to the density of low grammes per square metre portion 47 absorption piece by only compressing high grammes per square metre portion 46.In addition, in the pressurization steps that this step uses, implement to use the measures such as the backer roll digging out the shape corresponding to middle section 41 or the roller that only there is pressurization part in the part that the region, side 45 with absorbent core 4 is corresponding, only pressurizeed in the region, side of absorbent core 4.
At the middle section 41 of absorbent core 4, the grammes per square metre forming the low grammes per square metre portion 43 of the bottom of translot 44 is preferably more than 5% relative to the ratio of the grammes per square metre in high grammes per square metre portion 42, be more preferably more than 10%, in addition, be preferably less than 50%, be more preferably less than 40%, in addition, be preferably more than 5% and less than 80%, be more preferably more than 10% and less than 70%, and then be preferably more than 10% and less than 50%, and then be more preferably more than 10% and less than 40%.In addition, the grammes per square metre in high grammes per square metre portion 42 is preferably 200g/m
2above, 300g/m is more preferably
2above, in addition, 800g/m is preferably
2below, 700g/m is more preferably
2below, in addition, 200g/m is preferably
2above and 800g/m
2below, 300g/m is more preferably
2above and 700g/m
2below.The grammes per square metre in low grammes per square metre portion 43 is preferably 10g/m
2above, 15g/m is more preferably
2above, in addition, 400g/m is preferably
2below, 350g/m is more preferably
2below, in addition, 10g/m is preferably
2above and 400g/m
2below, 15g/m is more preferably
2above and 350g/m
2below, so be preferably 25g/m
2above and 300g/m
2below.
Not only grammes per square metre is comparatively large compared with the low grammes per square metre portion 43 of the bottom of formation translot 44 in high grammes per square metre portion 42, and thickness is also larger.The thickness in low grammes per square metre portion 43 is preferably more than 5% relative to the ratio of the thickness in high grammes per square metre portion 42, is more preferably more than 10%, in addition, be preferably less than 50%, be more preferably less than 40%, in addition, be preferably more than 5% and less than 50%, be more preferably more than 10% and less than 40%.In addition, the thickness in high grammes per square metre portion 42 is preferably more than 1.5mm, is more preferably more than 2mm, in addition, is preferably below 10mm, is more preferably below 8mm, in addition, is preferably more than 1.5mm and below 10mm, is more preferably more than 2mm and below 8mm.The thickness in low grammes per square metre portion 43 is preferably more than 0.08mm, is more preferably more than 0.15mm, in addition, is preferably below 5mm, is more preferably below 4mm, in addition, is preferably more than 0.08mm and below 5mm, is more preferably more than 0.15mm and below 4mm.
In addition, the value in above-mentioned high grammes per square metre portion 42 or with each value in the relation in low grammes per square metre portion 43, when forming absorbent core comprising pod as the sanitary towel 1 of present embodiment, as long as corresponding to the high grammes per square metre portion not comprising this pod 50.
(assay method of the grammes per square metre in high grammes per square metre portion and low grammes per square metre portion)
Absorbent core cuts off along high grammes per square metre portion 42 and the boundary line in low grammes per square metre portion 43 by the single-blade razor using FEATHER company to manufacture, and obtains the small pieces in high grammes per square metre portion 42 and low grammes per square metre portion 43 in the mode becoming prespecified area.High grammes per square metre portion 42 cuts the part that clipped by low a pair grammes per square metre portion 43,43 and becomes small pieces.That is, high grammes per square metre portion 42 is cut as the block of cells sheet marked off by low grammes per square metre portion 43.When these small pieces comprise the low grammes per square metre portion 48 of the bottom being formed in the pod 50,51,52 that longitudinal direction extends, the high grammes per square metre portion 42 marked off is cut as sample and be used for measuring by low grammes per square metre portion 43 and low grammes per square metre portion 48.The small pieces in low grammes per square metre portion are that the mode becoming 30mm with length cuts the narrow part that is clipped between high a pair grammes per square metre portion 42,42 and becomes small pieces.
Electronic balance (the electronic balance GR-300 that A & D company manufactures, precision: arithmetic point 4 later) is used to measure the weight of these small pieces.Calculated weight is calculated the grammes per square metre of small pieces divided by the area of the small pieces in high grammes per square metre portion 42 or low grammes per square metre portion 43.For high grammes per square metre portion 42 and low grammes per square metre portion 43, respectively the average grammes per square metre of 5 small pieces is set to grammes per square metre.
(assay method of the thickness in high grammes per square metre portion and low grammes per square metre portion)
The mensuration of the thickness in high grammes per square metre portion 42 and low grammes per square metre portion 43, is undertaken by measuring the thickness of the small pieces in order to cut each Site Determination grammes per square metre.Pressurize 10 minutes with the determination part of the pressure of 5kPa to the small pieces in the high grammes per square metre portion 42 of cutting from absorbent commodity and low grammes per square metre portion 43, measuring immediately after heavy.Removing the middle section of the sample after weighing, the acrylic panel of size 20mm × 20mm, thickness 3mm is placed on absorber 3, the non-contacting Laser Displacement meter (laser head LK-G30, displacement meter LK-GD500) using KEYENCE company to manufacture measures the thickness of sample.Less and when being difficult to utilize non-contacting Laser Displacement meter to measure in the size of cut small pieces, such as, microscope (VHX-1000 that KEYENCE company manufactures) also can be used to observe with the multiplying power of 20 ~ 100 times and measure the cross section of the sample after above-mentioned cut-out.
And, by forming the high grammes per square metre portion 42 and low grammes per square metre portion 43 with grammes per square metre difference and density contrast in the above described manner, in the skin abutment face of the middle section 41 of absorbent core 4, the width Y of absorbent core 4 is formed with many translot 44a to non-skin abutment face side depression with extending respectively.In this manual, skin abutment face be in absorbent commodity or its component parts when wearing towards the face of the skin side of wearer, non-skin abutment face be in absorbent commodity or its component parts when wearing towards the face of the opposition side of the skin side of wearer.
In addition, as shown in Fig. 3 (b), in the region, side 45 of absorbent core 4, also on the length direction X of absorbent core 4, be alternately formed with high grammes per square metre portion 46 and low grammes per square metre portion 47, each low grammes per square metre portion 47 extends along the width Y of absorbent core 4.The grammes per square metre of the formation material of the absorbent core in high grammes per square metre portion 46 is relatively high compared with low grammes per square metre portion 47, and the grammes per square metre of the formation material of the absorbent core in low grammes per square metre portion 47 is relatively low compared with high grammes per square metre portion 46.
And, by forming the high grammes per square metre portion 46 and low grammes per square metre portion 47 with grammes per square metre difference and density contrast in the above described manner, in the skin abutment face in the region, side 45 of absorbent core 4, on the width Y of absorbent core 4, also form many translot 44b to non-skin abutment face side depression respectively with extending.
In the region, side 45 of absorbent core 4, the grammes per square metre forming the low grammes per square metre portion 47 of the bottom of translot 44 is preferably more than 5% relative to the ratio of the grammes per square metre in high grammes per square metre portion 46, be more preferably more than 10%, in addition, be preferably less than 50%, be more preferably less than 40%, in addition, be preferably more than 5% and less than 50%, be more preferably more than 10% and less than 40%.In addition, the grammes per square metre in high grammes per square metre portion 46 is preferably 50g/m
2above, 100g/m is more preferably
2above, in addition, 400g/m is preferably
2below, 300g/m is more preferably
2below, in addition, 50g/m is preferably
2above and 400g/m
2below, 100g/m is more preferably
2above and 300g/m
2below.The grammes per square metre in low grammes per square metre portion 47 is preferably 2.5g/m
2above, 5g/m is more preferably
2above, in addition, 200g/m is preferably
2below, 150g/m is more preferably
2below, in addition, 2.5g/m is preferably
2above and 200g/m
2below, 5g/m is more preferably
2above and 150g/m
2below.
Not only grammes per square metre is comparatively large compared with the low grammes per square metre portion 47 of the bottom of formation translot 44 in high grammes per square metre portion 46, and thickness is also larger.The thickness in low grammes per square metre portion 47 is preferably more than 5% relative to the ratio of the thickness in high grammes per square metre portion 46, is more preferably more than 10%, in addition, be preferably less than 50%, be more preferably less than 40%, in addition, be preferably more than 5% and less than 50%, be more preferably more than 10% and less than 40%.In addition, the thickness in high grammes per square metre portion 46 is preferably more than 0.8mm, is more preferably more than 1mm, in addition, is preferably below 5mm, is more preferably below 4mm, in addition, is preferably more than 0.8mm and below 5mm, is more preferably more than 1mm and below 4mm.The thickness in low grammes per square metre portion 47 is preferably more than 0.04mm, is more preferably more than 0.08mm, in addition, is preferably below 0.4mm, is more preferably below 0.32mm, in addition, is preferably more than 0.04mm and below 0.4mm, is more preferably more than 0.08mm and below 0.32mm.
In addition, the value in above-mentioned high grammes per square metre portion 46 or with each value in the relation in low grammes per square metre portion 47, when forming absorbent core comprising pod as the sanitary towel 1 of present embodiment, as long as corresponding to the high grammes per square metre portion not comprising this pod 50.
In addition, the assay method of the respective grammes per square metre in high grammes per square metre portion 46 and low grammes per square metre portion 47 and thickness, same with the assay method in above-mentioned high grammes per square metre portion 42 and low grammes per square metre portion 43.
In addition, high grammes per square metre portion 42 grammes per square metre compared with the high grammes per square metre portion 46 in region, side 45 of middle section 41 is comparatively large, and in addition, thickness is also larger compared with the high grammes per square metre portion 46 in region, side 45.Thus, the thickness t1 of the middle section 41 and thickness t2 in region, side 45 is thicker, is formed with the protuberance 5 more outstanding than the upper surface S2 in side region 45 at middle section 41.
The thickness t1 of middle section 41 is preferably more than 110% relative to the ratio of the thickness t2 in region, side 45, be more preferably more than 120%, in addition, be preferably less than 400%, be more preferably less than 300%, in addition, be preferably more than 110% and less than 400%, be more preferably more than 120% and less than 300%.In the present embodiment, the thickness t1 of middle section 41 is the above-mentioned thickness in the high grammes per square metre portion 42 of the width central part being positioned at middle section 41, and the thickness t2 in region, side 45 is the above-mentioned thickness in the high grammes per square metre portion 46 adjacent with middle section 41.
In any one in fluid drainage portion counterpart B and rear quadrate part C of protuberance 5, the ratio of the whole thickness t1 relative to middle section 41 of the height t of giving prominence to from the upper surface S2 in region, side 45 is all preferably more than 20%, be more preferably more than 30%, in addition, be preferably less than 90%, be more preferably less than 80%, in addition, be preferably more than 20% and less than 90%, be more preferably more than 30% and less than 80%.The projecting height t of protuberance 5 is identical with the value that the whole thickness t1 from middle section 41 deducts the thickness t2 gained in region, side 45.
The low grammes per square metre portion 43 of middle section 41 and the low grammes per square metre portion 47 in region, side 45 are in the boundary portion of middle section 41 with region, side 45, position consistency on the length direction X of absorbent core 4, similarly, the translot 44a of the middle section 41 and translot 44b in region, side 45,45 is in the position consistency of above-mentioned boundary portion on the length direction X of absorbent core 4.
That is, the translot 44a of the middle section 41 and translot 44b in region, side 44,44 is formed from the middle section 41 of absorbent core 4 to region, side 45,45 continuous print 1 translot 44, and this translot 44 extends on the whole width of absorbent core 4.And this translot 44 is spaced apart and be formed with many on the length direction of absorbent core 4.In other words, the low grammes per square metre portion 43 of middle section 41 is formed in the low grammes per square metre portion 47 in region, side 45 the low grammes per square metre portion that the whole width of absorbent core 4 extends continuously, and the grammes per square metre of the formation material of the absorbent core in this low grammes per square metre portion, thickness and density are less than the high grammes per square metre portion 46 in region, side 45.
About translot 44, what is called refers to from middle section continuously to region, side, and the space in the translot that upside is open uninterruptedly exists continuously from middle section to region, side between middle section and region, side.In the sanitary towel 1 of present embodiment, as shown in Fig. 2 (b), translot 44 intersects with pod 50 ~ 52 crosswise hereinafter described when overlooking, but when the prolongation in the space in the translot clipping the relative side of pod existing all or part of of the space in another translot, think that translot is uninterrupted with the cross part of pod.
In addition, in many above-mentioned translots 44, on the width Y of absorbent core 4, the bottom 44d in position P1, P1 (with reference to Fig. 2 (b)) adjacent with region, side 45 of middle section 41 is positioned at the upper surface S2 position on the lower than side region 45.Mentioned herein to the position of upper surface S2 in region, side 45 are the upper surfaces in the high grammes per square metre portion 46 at the position adjacent with middle section 41 in region, side 45.As shown in Fig. 2 (b), the bottom 44d of translot 44 is preferably positioned at the upper surface S2 position on the lower than side region 45 on the width of absorbent core 4 in the whole region of middle section 41.In this sanitary towel 1, the low grammes per square metre portion 43 of middle section 41 compared with the high grammes per square metre portion 46 in region, side 45 grammes per square metre and thickness less, thus, in translot 44, in the whole region of the middle section 41 on the width of absorbent core 4, bottom 44d is positioned at the upper surface S2 position on the lower than side region 45.
Whether the bottom 44d of translot 44 is positioned at the position on the lower, position of the upper surface S2 than side region 45, is to be judged by the thickness in the thickness of bottom 44d in position P1, the P1 adjacent with region, side 45 of mensuration middle section 41 and the high grammes per square metre portion 46 in region, side 45.Specifically, first, take out absorbent core 4 from sanitary napkin 1, measure the thickness in the high grammes per square metre portion 46 in region, side 45 with the bottom surface of middle section 41 for basic point.The mensuration of thickness is carried out as follows: with the pressure of 5kPa to each position pressurization 10 minutes, after heavy, the acrylic panel of size 20mm × 20mm, thickness 3mm is placed on measurement site and the non-contacting Laser Displacement meter (laser head LK-G30, the displacement meter LK-GD500 that use KEYENCE company to manufacture.Then, the single-blade razor using FEATHER company to manufacture cuts the determination part of the bottom 44d position P1, the P1 adjacent with region, side 45 of middle section 41 from absorbent commodity, with the exert pressure 10 minutes of 5kPa, except the mensuration of carrying out thickness after heavy immediately.Removing the middle section of the sample after weighing, the acrylic panel of size 20mm × 20mm, thickness 3mm is placed on absorber 3, (laser head LK-G30, displacement meter LK-GD500 measure the thickness of sample to the non-contacting Laser Displacement meter using KEYENCE company to manufacture.Less and when being difficult to utilize non-contacting Laser Displacement meter to measure in the size of cut small pieces, such as, microscope (VHX-1000 that KEYENCE company manufactures) also can be used to observe with the multiplying power of 20 ~ 100 times and measure the cross section of the sample after above-mentioned cut-out.The thickness in the high grammes per square metre portion 46 in region, side 45 calculated before if the thickness of the determination part of the bottom 44d in position P1, the P1 adjacent with region, side 45 of middle section 41 is greater than, then the bottom 44d of translot 44 is positioned at the position on the lower, position of the upper surface S2 than side region 45.
The middle section 41 of protuberance 5 and region, a pair side 45,45 integrally formed is comprised in absorbent core 4.Be bonded to each other different from utilizing the engagement means such as bonding agent or compression by the parts produced in different steps, so-called " integrally formed " refers to and uses identical material to form in one step.Thus, such as, the part 42u of the formation protuberance 5 in middle section 41 and between compared with the part 42d below it, do not exist picture overlapping separately manufacture 2 absorbent cores time the layer that produces adjacency section each other or joint portion, in addition, in middle section 41 boundary portion with region, side 45,45, there is not the core that produces when being arranged 2 absorbent cores manufactured respectively adjacency section each other or joint portion yet.
When by comprise the middle section 41 of protuberance 5 and region, a pair side 45,45 integrally formed time, the liquid absorbed has can the seriality of successfully movement.Hereafter the manufacture method of the absorbent core of this kind of structure is being described.
In addition, absorbent core 4 middle section 41 and region, side 45 any one in, all utilize the existence of translot and pod hereinafter described and make skin abutment face have concaveconvex shape, making non-skin abutment face side become smooth on the other hand.
Sanitary towel 1 according to the present embodiment, translot 44 is formed at the middle section 42 with protuberance 5, this translot 44 degree of depth is comparatively dark, and bottom 44d arrives the position darker than the upper surface S2 in side region 45, and extends to region, side 45 from middle section 42, and, this translot 44 is formed by reducing the grammes per square metre of the formation material of absorbent core, therefore, usually easily hinders bending protuberance 5 even if having, also be imbued with morphotropism, not easily produce gauffer in skin abutment face.Therefore, as shown in Figure 4, protuberance 5 and the protrusion 11 that utilizes it to be formed can be made along the fluid drainage portion of wearer with one side, gluteal fold is out of shape, the mode that one side makes global shape be out of shape according to the body shape of wearer produces distortion, relative to health concavo-convex conformable excellence and relative to wearer activity follow morphotropism excellence, not easily due to gauffer or absorbent core folding line and cause sense of discomfort.
If the bottom 44d of translot 44 is positioned at the upper surface S2 position on the lower than side region 45 in the whole region of the middle section 41 of the width Y of absorbent core 4, then this effect is more obvious.
And, because absorbent core is integrally formed, and translot 44 is formed by reducing the grammes per square metre of the formation material of absorbent core, therefore the liquid absorbed from protuberance 5 successfully spreads in a thickness direction at middle section 41, and liquid is also easy to spread to other positions near the bottom of translot 44, the liquid near the bottom being trapped in translot 44 can not bleed back to skin abutment face due to pressurization.Therefore, even if when being supplied to large quantity of fluid etc., skin abutment face also not easily residual liquid, thus obtain comfortable wearing feeling.
From the view point of reliably playing this kind of effect further, the degree of depth of the translot 44 in middle section 41 is preferably more than 50% relative to the ratio of the thickness t1 of middle section 41, be more preferably more than 60%, in addition, be preferably less than 95%, be more preferably less than 90%, in addition, be preferably more than 50% and less than 95%, be more preferably more than 60% and less than 90%.
In addition, the width W of translot 44 is preferably more than 0.2mm, is more preferably more than 0.5mm, in addition, is preferably below 3mm, is more preferably below 2mm, in addition, is preferably more than 0.2mm and below 3mm, is more preferably more than 0.5mm and below 2mm.As shown in Fig. 3 (a), the width W of translot 44 is the sizes on the length direction X of absorbent core.
In addition, in sanitary towel 1, because the high grammes per square metre portion 42 of middle section 41 is higher with low grammes per square metre portion 43 phase specific density, so the body fluid be taken into translot 44 is sucked by high grammes per square metre portion 42 rapidly.Therefore, in translot 44, transmit one side due to body fluid one side to be absorbed on the length direction of absorbent core 4, so the body fluid absorption of middle section effectively can be carried out.As a result, improve from the leak of liquid inhibition of absorbent core 4.In addition, because grammes per square metre portion 46 high in region, side 45 is also higher with low grammes per square metre portion 47 phase specific density, so can same effect be obtained.
Middle section 41 and region, side 45 each in, the density in low grammes per square metre portion is preferably more than 5% relative to the ratio of the density in adjacent high grammes per square metre portion, be more preferably more than 10%, in addition, be preferably less than 50%, be more preferably less than 40%, in addition, be preferably more than 5% and less than 50%, be more preferably more than 10% and less than 40%.
In the absorbent core 4 of sanitary towel 1, as shown in Figure 1 and Figure 2, the region, front and back end that the two ends of the ratio middle section 41 on middle section 41, region, side 45,45 and length direction are more outward, has pod 50 ~ 52.The pod 50 of middle section 41 arranges at middle section 41 the low grammes per square metre that the grammes per square metre of the formation material of absorbent core and thickness is less than above-mentioned high grammes per square metre portion 42 to recall in the same manner as above-mentioned translot 44a]]]] portion 48 and being formed.The pod 50 of middle section 41 is without the need to extending to region, front and back end continuously.The pod 51,52 in region, side 45 is that the grammes per square metre of the formation material arranging absorbent core in the same manner as above-mentioned translot 44b in region, side 45 and thickness are less than the low grammes per square metre portion 49 in above-mentioned high grammes per square metre portion 46 and are formed.
In addition, in absorbent core 4 in sanitary towel 1, as shown in Figure 1, in the front and back end region more more outward than the two ends of the middle section 41 on length direction X, be formed with the high grammes per square metre portion of the magnitude relationship with grammes per square metre, density and the thickness same with the high grammes per square metre portion 46 in region, side 45 and low grammes per square metre portion 47 and low grammes per square metre portion, thus, the translot 53 identical with the translot 44b in region, side 45 is formed.
Sanitary towel 1 according to the present embodiment, because be formed with the pod 50 along the length direction of absorbent core 4 at the middle section 41 with protuberance 5, so can make protuberance 5 and the protrusion 11 that formed by it produces distortion in the mode of the body shape according to wearer further, thus it is concavo-convex conformable to improve relative to health further.In addition, liquid improves, at skin abutment face more not easily residual liquid to the absorbability of the thickness direction of middle section 41.
Be formed in the bottom of the pod 50 of middle section 41 without the need to being positioned at the upper surface S2 position on the lower at the position adjacent with middle section 41 than side region 45.Namely, as shown in Fig. 2 (b), the bottom of pod 50 can be positioned at the upper surface S2 position on the lower at the position adjacent with middle section 41 than side region 45, also can be positioned at the position identical with the upper surface S2 at the position adjacent with middle section 41 in region, side 45 or than its position by the top bottom it.
The absorbent core 4 of above-mentioned sanitary towel 1 can use following long-pending fine device manufacture, and this long-pending fine device comprises: long-pending fine cylinder 54, and it has gathering recess 55 at outer peripheral face, and a direction A rotates; With conduit (not shown), the formation material of absorbent core is supplied to the outer peripheral face of this long-pending fine cylinder 54 by it with the state of dispersing.
Gathering recess 55 is formed multiple at certain intervals in the circumferential direction of the outer peripheral face of long-pending fine cylinder 54.The gathering bottom surface 56 of recess 55 is formed by web plate etc., has the multiple pores playing function as suction socket.
As shown in Figure 5, the recess 56a for the formation of the middle section 41 with protuberance 5 is formed with in a part for the bottom surface 56 of gathering recess 55.The difficult breathability parts 56 for the formation of low grammes per square metre portions such as low grammes per square metre portions 43,37 are configured with in the bottom of gathering recess 55.Difficult breathability parts 56 are fixed in the mode that the bottom surface from gathering recess 55 is outstanding, also can be non-breathable parts, such as, are formed by metal or plastics.
In the same manner as the known long-pending fine device with long-pending fine cylinder, carrying out suction one side by one side from the bottom surface of gathering recess 55 is supplied in conduit by the formation material of absorbent core, as shown in Fig. 5 (b), the formation material of absorbent core is deposited in gathering recess 55 with regulation shape.By this deposit 4' is obtained absorbent core 4 from gathering recess 55 demoulding.Absorbent core 4 also can before coated by clad sheet or coated after, by via carrying out pressurizeing and suitably compress between pair of rolls etc.As shown in Fig. 5 (b), the part 43' comprising core body formation material be deposited on difficult breathability parts 56 becomes low grammes per square metre portion 43 etc., and the part 42' be deposited on the bottom surface without difficult breathability parts 56 becomes high grammes per square metre portion 42 etc.In addition, as mentioned above, by pressurizeing to the middle section 41 of absorbent core 4, the high grammes per square metre portion 42 higher with low grammes per square metre portion 43 phase specific density is formed at middle section 41, with formed middle section 41 part differently, by pressurizeing to region, side 45, form the high grammes per square metre portion 46 higher with low grammes per square metre portion 47 phase specific density in region, side 45.When manufacture comprises the absorbent core of water absorbent polymer, the introduction part of water absorbent polymer is preferably set in the midway of conduit.
As positive dough sheet 2a and non-skin lateral plate 3, the material identical with material all the time used in this technical field can be used with no particular limitation.Such as, as positive dough sheet 2a, the non-woven fabrics or membrana perforata with liquid permeability can be used.As non-skin lateral plate 3, the water-repellancy non-woven fabrics that the water pressure resistance such as plastic liquid impermeability film or spunbond-melt blown-spunbond lamination non-woven fabrics is higher can be used.In addition, as stereo enclosure formation sheet 2b, the water-repellancy non-woven fabrics that water pressure resistance can be used higher such as spunbond-melt blown-spunbond lamination non-woven fabrics etc.
Next, to of the present invention second and the 3rd the sanitary napkin of embodiment be described.Second is different from the first embodiment with the structure of the absorbent core of the sanitary napkin of the 3rd embodiment.About second and the 3rd embodiment, mainly the point different from the first embodiment is described, and identical point is marked identical Reference numeral and omitted the description.For the point do not mentioned especially, suitably application is about the explanation of the first embodiment.
As shown in Figure 6, Figure 7, in the absorbent core 4A in the sanitary napkin of the second embodiment, protuberance 5 has the inclined side 41S going from the central part 41M of middle section 41 to region, side 45,45 to decline.Inclined side 41S is formed at the both sides of the length direction of protuberance 5.As shown in Fig. 7 (a), protuberance 5 has smooth central part 41M, and has in the both sides of this central part 41M the inclined side 41S that cross section is linearity.The boundary portion in the bight between central part 41M and inclined side 41S, inclined side 41S and region, side 45, with also can not having bight via cross section be the curve ground of arc-shaped continuously.In addition, inclined side 41S also can have the bending cross sectional shape of protrusion in non-skin abutment face or non-skin abutment face side.
According to the sanitary napkin of the second embodiment, the effect identical with the sanitary towel 1 of the first embodiment can not only be played, and following effect can also be played by having inclined side 41S.Namely, with the boundary portion in region, side 45 easily from inclined side 41S to non-skin abutment face lateral bend, the relatively high central part 41M of rigidity can shape not to change lifting, thus easily follows health, is therefore favourable from improving viewpoint that is conformable and that improve wearing feeling.
In the translot 44 of the absorbent core 4A in the second embodiment, on the width Y of absorbent core 4A, the bottom 44d of position P1, the P1 adjacent with region, side 45 of middle section 41 is positioned at the upper surface S2 position on the lower than side region 45, on the other hand, the bottom of the translot 44 in the central part 41M of middle section 41 is positioned at the position more closer to the top than the upper surface S2 in side region 45.
Absorbent core 4A in second embodiment, except forming the inclined plane corresponding with inclined side 41S at the recess 56a being arranged at gathering recess 55, and outside the height component difference making the bottom surface from gathering recess 55 of difficult breathability parts outstanding, can be manufactured by the method that the manufacture method of the absorbent core 4 with the first embodiment is same.
In absorbent core 4B in the sanitary napkin of the 3rd embodiment, as shown in Figure 8, Figure 9, the thickness of this absorbent core 4B goes to reduce gradually from the central part 41M of middle section 41 to the two ends of the width Y of absorbent core 4B on the width Y of absorbent core 4B.More specifically, absorbent core 4B, from fluid drainage portion counterpart B in the scope of a part of rear quadrate part C, has the central part 41M that skin abutment face is smooth, and thickness goes to reduce gradually from the surrounding of central part 41M to the periphery of absorbent core.As this absorbent core 4B, when there is not the sharply changing section of the protuberance 5 and inclination in region, side 45 that can divide middle section 41 clearly in the skin abutment face of absorbent core, as shown in Figure 9, length 3 decile of the width Y of absorbent core, using the region of its central authorities as middle section 41, will be positioned at the part of the both sides of this middle section 41 as region, side 45,45.The absorbent core 4B of the 3rd embodiment, when dividing like this, has middle section inclined side 41S at middle section 41, has region, side inclined side 45S in region, side 45,45.
According to the 3rd embodiment, not only play the effect identical with the sanitary towel 1 of the first embodiment, and by middle section 41 and region, side 45 two ends arranged to the width Y of absorbent core 4B go the gradient reduced gradually, following effect can also be played.Namely, utilize the inclination in middle section 41 and region, side 45, absorbent core 4B easily protrudes with skin abutment face side, the mode of non-skin abutment face side depression bends, the shape of the central part 41M that rigidity can be made relatively high does not change lifting, thus easily follow health, therefore viewpoint that is conformable from raising and raising wearing feeling is favourable.
Above, preferred embodiment describe the present invention based on of the present invention, but the present invention is not restricted to above-mentioned embodiment.
Such as, be formed with the pod extended on the length direction of this absorbent core in the absorbent core in the first ~ three embodiment, but also can not form pod.In addition, the pod in middle section also can be set, and the pod in region, side is not set, in contrast, the pod in middle section also can not be set, and the pod in region, side is set.
In addition, only can be formed in the fluid drainage portion counterpart of absorbent commodity from middle section 41 to region, side 45 continuous print translot 44, also can only be formed in rear quadrate part.
In addition, in the absorbent core 4B of the second embodiment, the inclined plane corresponding with inclined side 41S is formed at the recess 56a being arranged at gathering recess 55, and form inclined side 41S, but, the thickness of middle section 41 also can by producing on the width Y of absorbent core 4 after uniform absorbent core, to middle section 41 and the position of side area adjacency carry out pressurization and make it compress and formed.
In addition, absorbent core can only be formed by fibrous materials such as paper pulp fibers, also can comprise both fibrous material and high water absorbency polymer.As fibrous material, the various fibrous materials all the time used in the absorber of sanitary napkin or the absorbent commodity such as sanitary pad, disposable diaper can be used with no particular limitation, such as, use the short fiber etc. of the synthetic fibers such as short fiber or polyethylene of paper pulp fiber, cellulosic fibre such as artificial (rayon) fiber, cotton fiber etc.These fibers can be used alone a kind or combine two or more use.In addition, preferably all or part of is paper pulp fiber to fibrous material, and the ratio of the paper pulp fiber in fibrous material is preferably 50 ~ 100 quality %, is more preferably 80 ~ 100 quality %, and then is preferably 100 quality %.In addition, in absorbent core, except high water absorbency polymer, also can as required with the use of deodorizer or antibacterial etc.
In addition, in the above-described embodiment, high grammes per square metre portion density is higher compared with low grammes per square metre portion, but also can be set to identical by both density by omitting the pressurization steps of absorbent cores.
In addition, absorbent commodity of the present invention, except sanitary napkin, also can be other absorbent commodities such as sanitary pad's (vaginal secretions protective pad), incontinence protection, disposable diaper.Explanation clipped in an above-mentioned embodiment and the key element only comprised in one embodiment can be applicable to other embodiments respectively, and in addition, the key element in each embodiment can suitably phase double replacement between embodiment.
About above-mentioned embodiment, the present invention and then disclose following absorbent commodity.
< 1 > absorbent commodity, it is included in the absorbent core of shape longer on the fore-and-aft direction of absorbent commodity, in this absorbent commodity, above-mentioned absorbent core comprises middle section in its width direction and is positioned at the region, side of its both sides, this middle section has the protuberance more outstanding than this region, side upper surface separately, in above-mentioned absorbent core above-mentioned middle section and region, above-mentioned side integrally formed, in the skin abutment face of above-mentioned absorbent core, multiple translots along the width of this absorbent core are formed from above-mentioned middle section continuously to region, above-mentioned side respectively, above-mentioned translot is formed by reducing the grammes per square metre of the formation material of absorbent core, and in this translot, above-mentioned middle section with the bottom at the position of above-mentioned side area adjacency, be positioned at the upper surface position on the lower than this region, side.
< 2 > is as the absorbent commodity of above-mentioned < 1 >, wherein, at the middle section of above-mentioned absorbent core, high grammes per square metre portion is alternately formed on the length direction of absorbent core with the low grammes per square metre portion of the bottom forming above-mentioned translot.
< 3 > is as the absorbent commodity of above-mentioned < 1 > or < 2 >, wherein, in the whole region of the above-mentioned middle section of bottom on the width of above-mentioned absorbent core of above-mentioned translot, be positioned at the above-mentioned upper surface position on the lower than region, above-mentioned side.
The absorbent commodity of < 4 > any one of above-mentioned < 1 > to < 3 >, wherein, the pod of the length direction along above-mentioned absorbent core is formed at above-mentioned middle section.
The absorbent commodity of < 5 > any one of above-mentioned < 1 > to < 4 >, wherein, above-mentioned protuberance is formed into a part for rear quadrate part from fluid drainage portion counterpart.
The absorbent commodity of < 6 > any one of above-mentioned < 1 > to < 5 >, wherein, above-mentioned protuberance comprises the inclined side going from the central part of above-mentioned middle section to territory, above-mentioned side region to decline.
The absorbent commodity of < 7 > any one of above-mentioned < 1 > to < 5 >, wherein, the thickness of above-mentioned absorbent core goes to reduce gradually from the central part of above-mentioned middle section to the two ends of the width of absorber.
The absorbent commodity of < 8 > any one of < 1 > to < 7 >, wherein, at the middle section of above-mentioned absorbent core, the grammes per square metre in above-mentioned low grammes per square metre portion is less than more than 5% 80% relative to the ratio of the grammes per square metre in above-mentioned high grammes per square metre portion.
The absorbent commodity of < 9 > any one of above-mentioned < 1 > to < 8 >, wherein, grammes per square metre in the middle section of above-mentioned absorbent core is 200 ~ 800g/m in high grammes per square metre portion
2, be 10 ~ 400g/m in low grammes per square metre portion
2.
The absorbent commodity of < 10 > any one of above-mentioned < 1 > to < 9 >, wherein, at the middle section of above-mentioned absorbent core, above-mentioned high grammes per square metre portion is compared to above-mentioned low grammes per square metre portion, and the density of absorption piece is higher.
The absorbent commodity of < 11 > any one of above-mentioned < 1 > to < 10 >, wherein, at the middle section of above-mentioned absorbent core, the thickness in low grammes per square metre portion is less than more than 5% 50% relative to the ratio of the thickness in high grammes per square metre portion.
The absorbent commodity of < 12 > any one of above-mentioned < 1 > to < 11 >, wherein, in the region, side of above-mentioned absorbent core, the grammes per square metre in low grammes per square metre portion is less than more than 5% 50% relative to the ratio of the grammes per square metre in high grammes per square metre portion.
The absorbent commodity of < 13 > any one of above-mentioned < 1 > to < 12 >, wherein, grammes per square metre in the region, side of above-mentioned absorbent core is 50 ~ 400g/m in high grammes per square metre portion
2, be 2.5 ~ 200g/m in low grammes per square metre portion
2.
The absorbent commodity of < 14 > any one of above-mentioned < 1 > to < 13 >, wherein, in the region, side of above-mentioned absorbent core, the thickness in low grammes per square metre portion is less than more than 5% 50% relative to the ratio of the thickness in high grammes per square metre portion.
The absorbent commodity of < 15 > any one of above-mentioned < 1 > to < 14 >, wherein, in the region, side of above-mentioned absorbent core, the thickness in high grammes per square metre portion is more than 0.8mm below 5mm, and the thickness in low grammes per square metre portion is more than 0.04mm below 0.4mm.
The absorbent commodity of < 16 > any one of above-mentioned < 1 > to < 15 >, wherein, the thickness of middle section is less than more than 110% 400% relative to the ratio of the thickness in region, side.
The absorbent commodity of < 17 > any one of above-mentioned < 1 > to < 16 >, wherein, the degree of depth of the translot in middle section is less than more than 50% 95% relative to the ratio of the thickness of middle section.
The absorbent commodity of < 18 > any one of above-mentioned < 1 > to < 17 >, wherein, the width of translot is 0.2 ~ 3mm.
The absorbent commodity of < 19 > any one of above-mentioned < 1 > to < 18 >, wherein, absorbent core middle section and region, side any one in, skin abutment face all has concaveconvex shape, and non-skin abutment face side is all formed as smooth.
The absorbent commodity of < 20 > any one of above-mentioned < 1 > to < 19 >, wherein, above-mentioned protuberance fluid drainage portion counterpart and rear quadrate part any one in, the height given prominence to from the upper surface in region, side is less than more than 20% 90% relative to the ratio of the whole thickness of middle section.
The absorbent commodity of < 21 > any one of above-mentioned < 1 > to < 20 >, wherein, the width of above-mentioned protuberance is less than more than 20% 80% relative to the ratio of the whole width of absorbent core.
The absorbent commodity of < 22 > any one of above-mentioned < 1 > to < 21 >, it comprises a pair flank section of extending from the both side edges of above-mentioned absorbent core.
The absorbent commodity of < 23 > any one of above-mentioned < 1 > to < 22 >, wherein, above-mentioned absorbent core comprises the fiber assembly of fibrous material or between the fiber of this fiber assembly, maintains the structure of high water absorbency polymer.
< 24 > is as the absorbent commodity of above-mentioned < 23 >, and wherein, all or part of of above-mentioned fibrous material is paper pulp fiber.
< 25 > is as the absorbent commodity of above-mentioned < 23 > or < 24 >, wherein, above-mentioned absorbent core is by clad sheet its upper and lower surface coated.
< 26 > is as the absorbent commodity of above-mentioned < 25 >, and wherein, above-mentioned clad sheet comprises cotton paper or water penetration non-woven fabrics.
The absorbent commodity of < 27 > any one of < 1 > to < 26 >, wherein, above-mentioned absorbent commodity is sanitary napkin.
Industrial utilizability
According to absorbent commodity of the present invention, relative to health concavo-convex conformable excellence and relative to wearer activity follow morphotropism excellence, not easily cause the folding line because of gauffer or absorbent core and the sense of discomfort caused.In addition, the liquid absorbed from protuberance passes through to be absorbed rapidly to translot internal penetration and arrives the bottom of translot, the backward translot that the density of absorbing material is higher compared with the bottom of translot bottom adjacency section transfer, therefore near the bottom being not easily trapped in translot, thus also not easily bleeding back to skin abutment face is produced.
Claims (7)
1. an absorbent commodity, it is included in the absorbent core of shape longer on the fore-and-aft direction of absorbent commodity, and the feature of this absorbent commodity is:
Described absorbent core comprises middle section in its width direction and is positioned at the region, side of its both sides, and this middle section has the protuberance more outstanding than this region, side upper surface separately,
Middle section described in described absorbent core and region, described side integrally formed,
In the skin abutment face of described absorbent core, the multiple translots along the width of this absorbent core are formed from described middle section continuously to region, described side respectively,
Described translot is formed by reducing the grammes per square metre of the formation material of absorbent core, and in this translot, described middle section with the bottom at the position of described side area adjacency, be positioned at the upper surface position on the lower than this region, side.
2. absorbent commodity as claimed in claim 1, is characterized in that:
In the whole region of the described middle section of bottom on the width of described absorbent core of described translot, be positioned at the described upper surface position on the lower than region, described side.
3. absorbent commodity as claimed in claim 1 or 2, is characterized in that:
The pod of the length direction along described absorbent core is formed at described middle section.
4. the absorbent commodity according to any one of claims 1 to 3, is characterized in that:
Described protuberance is formed into a part for rear quadrate part from fluid drainage portion counterpart.
5. the absorbent commodity according to any one of Claims 1 to 4, is characterized in that:
Described protuberance comprises the inclined side going from the central part of described middle section to region, described side to decline.
6. the absorbent commodity according to any one of Claims 1 to 4, is characterized in that:
The thickness of described absorbent core goes to reduce gradually from the central part of described middle section to the two ends of the width of absorber.
7. the absorbent commodity according to any one of claim 1 ~ 6, is characterized in that:
Comprise the low grammes per square metre portion of the bottom forming described translot and the high grammes per square metre portion adjacent with this low grammes per square metre portion at described middle section, this high grammes per square metre portion is higher with this low grammes per square metre portion phase specific density.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012258313A JP5604500B2 (en) | 2012-11-27 | 2012-11-27 | Absorbent articles |
| JP2012-258313 | 2012-11-27 | ||
| PCT/JP2013/076861 WO2014083934A1 (en) | 2012-11-27 | 2013-10-02 | Absorptive article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104768508A true CN104768508A (en) | 2015-07-08 |
| CN104768508B CN104768508B (en) | 2017-08-15 |
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| CN201380056845.6A Active CN104768508B (en) | 2012-11-27 | 2013-10-02 | Absorbent commodity |
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| CN (1) | CN104768508B (en) |
| RU (1) | RU2584524C1 (en) |
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| WO (1) | WO2014083934A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107847365A (en) * | 2016-05-20 | 2018-03-27 | 花王株式会社 | Absorbent commodity |
| CN108348365A (en) * | 2015-11-12 | 2018-07-31 | 尤妮佳股份有限公司 | Absorbent commodity |
| CN109069324A (en) * | 2016-12-26 | 2018-12-21 | 花王株式会社 | Absorbent commodity |
| CN110022824A (en) * | 2016-11-29 | 2019-07-16 | 大王制纸株式会社 | Absorbent commodity |
| CN110179594A (en) * | 2019-05-31 | 2019-08-30 | 重庆百亚卫生用品股份有限公司 | A kind of absorption-type core |
| CN110913818A (en) * | 2018-07-05 | 2020-03-24 | 花王株式会社 | Absorbent article |
| CN111278396A (en) * | 2017-11-06 | 2020-06-12 | 宝洁公司 | Absorbent article with conformable features |
| CN112153953A (en) * | 2018-09-04 | 2020-12-29 | 花王株式会社 | Pad type absorbent article |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6181027B2 (en) * | 2014-10-30 | 2017-08-16 | 花王株式会社 | Absorbent articles |
| BR112017015119B1 (en) | 2015-01-23 | 2022-07-12 | Kimberly-Clark Worldwide, Inc | ABSORBENT BRIDGE STRUCTURE |
| JP6563672B2 (en) * | 2015-04-14 | 2019-08-21 | 花王株式会社 | Absorbent articles |
| JP6387898B2 (en) * | 2015-05-15 | 2018-09-12 | 王子ホールディングス株式会社 | Absorbent articles |
| JP6646441B2 (en) * | 2015-12-28 | 2020-02-14 | 花王株式会社 | Absorbent articles |
| JP6788978B2 (en) * | 2016-03-01 | 2020-11-25 | 花王株式会社 | Absorbent article |
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| JP2017217078A (en) * | 2016-06-03 | 2017-12-14 | 花王株式会社 | Absorbent article |
| JP6886798B2 (en) * | 2016-10-25 | 2021-06-16 | 花王株式会社 | Absorbent article |
| WO2020008608A1 (en) * | 2018-07-05 | 2020-01-09 | 花王株式会社 | Absorbent article |
| JP6505339B1 (en) * | 2018-07-05 | 2019-04-24 | 花王株式会社 | Absorbent articles |
| WO2020130959A1 (en) * | 2018-12-20 | 2020-06-25 | Evyap Sabun Yag Gliserin Sanayi Ve Ticaret Anonim Sirketi | Optimized absorbent core layer for hygiene products |
| JP6518393B1 (en) * | 2019-03-04 | 2019-05-22 | 花王株式会社 | Absorbent articles |
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| US4758240A (en) * | 1985-08-05 | 1988-07-19 | Glassman Jacob A | Anantomical sanitary and incontinent pads |
| JP2012120707A (en) * | 2010-12-08 | 2012-06-28 | Kao Corp | Absorbent article |
| JP2012125366A (en) * | 2010-12-14 | 2012-07-05 | Kao Corp | Absorbent article |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE519513C2 (en) * | 2001-07-03 | 2003-03-11 | Sca Hygiene Prod Ab | Absorbent articles and ways of making an absorbent article of pants-like form |
| RU2301051C2 (en) * | 2005-04-12 | 2007-06-20 | Ирина Ивановна Аксентьева | Absorbing hygienic bandage |
| RU2305536C1 (en) * | 2006-06-16 | 2007-09-10 | Марият Мурадалиевна Мухина | Acupuncture device |
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2012
- 2012-11-27 JP JP2012258313A patent/JP5604500B2/en active Active
-
2013
- 2013-10-02 WO PCT/JP2013/076861 patent/WO2014083934A1/en active Application Filing
- 2013-10-02 CN CN201380056845.6A patent/CN104768508B/en active Active
- 2013-10-02 RU RU2015123691/12A patent/RU2584524C1/en active
- 2013-10-25 TW TW102138771A patent/TWI519281B/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758240A (en) * | 1985-08-05 | 1988-07-19 | Glassman Jacob A | Anantomical sanitary and incontinent pads |
| JP2012120707A (en) * | 2010-12-08 | 2012-06-28 | Kao Corp | Absorbent article |
| JP2012125366A (en) * | 2010-12-14 | 2012-07-05 | Kao Corp | Absorbent article |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108348365A (en) * | 2015-11-12 | 2018-07-31 | 尤妮佳股份有限公司 | Absorbent commodity |
| CN108348365B (en) * | 2015-11-12 | 2021-01-05 | 尤妮佳股份有限公司 | Absorbent article |
| CN107847365A (en) * | 2016-05-20 | 2018-03-27 | 花王株式会社 | Absorbent commodity |
| CN110022824A (en) * | 2016-11-29 | 2019-07-16 | 大王制纸株式会社 | Absorbent commodity |
| CN110022824B (en) * | 2016-11-29 | 2021-12-03 | 大王制纸株式会社 | Absorbent article |
| CN109069324A (en) * | 2016-12-26 | 2018-12-21 | 花王株式会社 | Absorbent commodity |
| CN109069324B (en) * | 2016-12-26 | 2020-10-23 | 花王株式会社 | Absorbent article |
| CN111278396A (en) * | 2017-11-06 | 2020-06-12 | 宝洁公司 | Absorbent article with conformable features |
| CN110913818A (en) * | 2018-07-05 | 2020-03-24 | 花王株式会社 | Absorbent article |
| CN112153953A (en) * | 2018-09-04 | 2020-12-29 | 花王株式会社 | Pad type absorbent article |
| CN110179594A (en) * | 2019-05-31 | 2019-08-30 | 重庆百亚卫生用品股份有限公司 | A kind of absorption-type core |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5604500B2 (en) | 2014-10-08 |
| JP2014104093A (en) | 2014-06-09 |
| TW201431543A (en) | 2014-08-16 |
| TWI519281B (en) | 2016-02-01 |
| CN104768508B (en) | 2017-08-15 |
| WO2014083934A1 (en) | 2014-06-05 |
| RU2584524C1 (en) | 2016-05-20 |
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