CN104068972A

CN104068972A - Absorptive object

Info

Publication number: CN104068972A
Application number: CN201310185000.9A
Authority: CN
Inventors: 加藤伸亨
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2013-03-29
Filing date: 2013-05-17
Publication date: 2014-10-01
Anticipated expiration: 2033-05-17
Also published as: CN203370022U; JP2014198087A; JP6159121B2; CN104068972B

Abstract

The utility model provides an absorptive object which solves the problem that body fluid leakage is caused by wrinkles. The absorptive object (1) has a front and back direction and a width direction which is orthogonal to the front and back direction, and comprises an absorptive body portion (2). The absorptive body portion (2) comprises a fluid-permeable surface sheet material (10), a fluid-impermeable back face sheet material (20) and an absorber (30) arranged between the surface sheet material (10) and the back face sheet material (20), wherein the two sides, in the width direction of the absorber body portion, of the absorber body portion extend outward in the width direction to form a pair of wing portions (43, 44). A wing area (CA), a front area (FA) and a back area (BA) are arranged on the absorptive body portion, wherein the wing area (CA) is located between the front root portions of the pair of wing portions and the rear root portions of the pair of wing portions, the front area (FA) is located in front of the wing area, and the back area (BA) is located behind the wing area. The length (W1) of the portion, in the central position of the wing area in the front and back direction, of the absorber in the width direction is at least larger than the maximum length (W2) of the portion, in the front area in the width direction, of the absorber.

Description

Absorbent commodity

Technical field

The present invention relates to a kind of absorbent commodity with absorbent main body portion, this absorbent main body portion comprise the surficial sheets of liquid permeability, the back-sheet of non-liquid permeability and be arranged on surficial sheets and back-sheet between absorber.

Background technology

In the past, in the absorbent commodities such as sanitary towel, be known to widely following shape: there is absorbent main body portion, and in the both sides of absorbent main body portion, arrange to extended a pair of alar part outside width, this absorbent main body portion comprise the surficial sheets of liquid permeability, the back-sheet of non-liquid permeability and be arranged on surficial sheets and back-sheet between absorber.

In addition, in this kind of absorbent commodity, also proposing has when absorbent commodity is fixed on underwear, so that absorber forms and make absorber cave in to width inner side (for example,, with reference to patent documentation 1) on the central part of fore-and-aft direction along the mode of the shape configuration of the crotch of underwear.

Patent documentation 1: TOHKEMY 2010-136973 communique

But above-mentioned absorbent commodity has following situation, that is, after long-time use, absorber shrinks to width inner side, and its result produces fold on absorber.In this case, have problem as follows: the adaptation interregional because of produced fold the body fluid scavenge port that causes wearer and the scavenge port butt that is connected to body fluid scavenge port declines, and its result, causes leakage of body fluids.

Particularly, in the situation that emerging nation etc. cannot change absorbent commodity for several times on 1st because of the situation of economic situation, custom, because the service time of absorbent commodity is longer, therefore can produce more significantly leakage of body fluids.

Summary of the invention

Therefore, the present invention completes in view of the above problems, and its object is to provide a kind of absorbent commodity that has improved the leakage of body fluids causing because of fold.

The purport of absorbent commodity of the present invention (absorbent commodity 1) is, a kind of absorbent commodity (absorbent commodity 1), its have fore-and-aft direction and with the width of fore-and-aft direction quadrature, and this absorbent commodity (absorbent commodity 1) has absorbent main body portion (absorbent main body portion 2), this absorbent main body portion (absorbent main body portion 2) comprises the surficial sheets (surficial sheets 10) of liquid permeability, the back-sheet of non-liquid permeability (back-sheet 20) and be arranged on above-mentioned surficial sheets and above-mentioned back-sheet between absorber (absorber 30), and this absorbent commodity (absorbent commodity 1) has in the both sides of the width of above-mentioned absorbent main body portion to extended a pair of alar part (alar part 43 outside width, 44), wherein, above-mentioned absorbent main body portion has the territory, pterion (territory, pterion CA) being positioned at from the root in the place ahead of above-mentioned a pair of alar part to the root at the rear of above-mentioned a pair of alar part, be positioned at the forefoot area (forefoot area FA) of locating on the front than territory, above-mentioned pterion and be positioned at than the rear region (rear region BA) at place, Yu Kao rear, above-mentioned pterion, length (length W1) on the width of the fore-and-aft direction center in territory, above-mentioned pterion of above-mentioned absorber than above-mentioned absorber in above-mentioned forefoot area and above-mentioned rear region, greatest length (length W2A) on width at least above-mentioned forefoot area is large.

According to the present invention, can provide a kind of absorbent commodity that has improved the leakage of body fluids causing because of fold.

Accompanying drawing explanation

Fig. 1 is the top view of observing from the skin bearing surface side of the absorbent commodity of embodiment.

Fig. 2 is the schematic sectional view in the X-X cross section shown in Fig. 1.

Fig. 3 is the schematic sectional view in the Y-Y cross section shown in Fig. 1.

Fig. 4 is for the figure of measuring position of weight per unit area of the absorbent commodity of embodiment is described.

Fig. 5 (a) represents to have fixed the schematic sectional view of state of the absorbent commodity of prior art, and (b) of Fig. 5 represents to have fixed the schematic sectional view of state of the absorbent commodity of present embodiment.

The specific embodiment

Absorbent commodity 1 with reference to the accompanying drawings of embodiment.Fig. 1 is the top view of absorbent commodity, and Fig. 2 is the cutaway view along the X-X line shown in Fig. 1.Fig. 3 is the cutaway view along the Y-Y line shown in Fig. 1.The absorbent commodity 1 of present embodiment is for example sanitary towel.

The absorbent commodity of embodiment is daily sanitary towel.Thereby the absorbent commodity of present embodiment is at fore-and-aft direction L(length direction) upper, be positioned at the length and the same length of rear region BA that is positioned at wearer's rear side of forefoot area FA of wearer's front side.

In addition, the region between a pair of alar part 43,44 described later is the scavenge port butt region Nei pterion territory CA that comprises that the scavenge port with wearer connects.Specifically, the root CA1 in the place ahead from a pair of alar part 43,44 is provided with territory, pterion CA between the root CA2 at the rear of a pair of alar part 43,44.The forward side of region CA of flying wing to wing place is forefoot area FA, and the region CA of flying wing to wing is rear region BA by rear side place.In addition, in Fig. 1, the centrage on the fore-and-aft direction L of absorbent commodity 1 is expressed as to fore-and-aft direction centre line L CL, the centrage on the width W of absorbent commodity 1 is expressed as to width centrage WCL.In addition the position that to be fore-and-aft direction centre line L CL intersect with width centrage WCL, pterion YuCA center.

In addition, in the present embodiment, take daily sanitary towel to be illustrated as example, but absorbent commodity of the present invention also can be applied to the sanitary towel of ight.The sanitary towel of ight is configured on fore-and-aft direction L, and the rear region BA that is positioned at wearer's rear side place grows than the forefoot area FA that is positioned at wearer's place, front side.

Absorbent commodity 1 has absorbent main body portion 2.Absorbent main body portion 2 has surficial sheets 10 that the skin with wearer connects, can not make back-sheet 20 and the absorber 30 of the non-liquid permeability that liquid sees through.Absorber 30 is configured between surficial sheets 10 and back-sheet 20.Thereby, in Fig. 1 and Fig. 2, be represented by dotted lines absorber 30.

In the top view shown in Fig. 1, the both sides of absorbent commodity 1 on the width W of absorbent main body portion 2 have to extended a pair of alar part 43,44 outside width W.

And absorbent commodity 1 has the lateral plate 41,42 in the outside that is arranged on absorber 30 on width W.

Surficial sheets 10 is sheet materials of the liquid permeability that sees through for the liquid such as body fluid.Surficial sheets 10 at least covers the surface of absorber 30.Surficial sheets 10 so long as non-woven fabrics, weave cotton cloth, the flaky material of structure that porose plastic sheet, mesh sheet material etc. see through for liquid, there is no particular determination.As weaving cotton cloth, the raw material of non-woven fabrics, can use any one in natural fiber, chemical fibre.

As the example of natural fiber, there are the celluloses such as comminution pulp, cotton.As the example of chemical fibre, there are the semisynthetic fibre such as regenerated cellulose, acetate fiber, the triacetate fibers such as staple fibre, fibrillation staple fibre element, thermoplasticity hydrophobicity chemical fibre or implemented the thermoplasticity hydrophobicity chemical fibre of hydrophilicity-imparting treatment.

As the example of above-mentioned thermoplasticity hydrophobicity chemical fibre, there are the ultimate fibres such as polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), PE, PP are carried out to glycerol polymerization and the composite fibre such as the fiber that forms, core sheath structure.

In addition, particularly, in non-woven fabrics, fleece manufacturing process can adopt any one method in dry type (combing method, spun-bond process, meltblown, air lay method etc.), wet type etc. or also can be undertaken by the several different methods in composite dry method and damp process.In addition, the method as engaging, there are the methods such as hot sticky method, needle point method, chemical adhesion, but makes the method for non-woven fabrics and be not particularly limited in said method.In addition, also can use and utilize the current method that interweaves to form the jet net-spraying method non-woven fabrics of lamellar.

As porose plastic sheet, can use the porose sheet material of the such thermoplastic resin of PE, PP, PET, foaming material of porous etc.In addition, also preferably, in above-mentioned porose plastic sheet, with 0.5%～10% scope, sneak into the filler being formed by titanium oxide, calcium carbonate etc. as required and make to use after its nebulousurine.In addition, can also use by perforation, heat embossing processing or machining etc. the thin film consisting of above-mentioned thermoplastic resin is carried out to the apertured film that perforate forms.Also apertured film and non-woven fabrics can be made to composite sheet uses.

Back-sheet 20 has the length with the same length of surficial sheets 10.Back-sheet 20 can be used and engage sheet material that the resin film of breathability forms etc. on the non-woven fabrics such as resin film, spun bond nonwoven fabric or jet net-spraying method non-woven fabrics of laminated nonwoven fabric that polyethylene sheets, polypropylene etc. are main body, breathability take.Back-sheet 20 preferably adopts and has the material that does not produce the flexibility of the such degree of sense of discomfort when wearing, for example, can use that to take that Low Density Polyethylene (LDPE) resin is main body, weight per unit area be 15g/m ²～30g/m ²scope in thin film.What back-sheet 20 was expected is to have opaque liquid and have poisture-penetrability, it can consist of micro-porous sheet, this micro-porous sheet be to melting mixing in polyolefin resins such as polyethylene, polypropylene have the material of inorganic filler to carry out stretch processing to form.

Absorber 30 comprises hydrophilic fibre, paper pulp.Absorber 30 is formed by the material that can absorb the body fluid such as menses.As an example, semisynthetic fibre element, granulated polymer, fibrous polymer, the thermoplasticity hydrophobicity chemical fibres such as regenerated cellulose, acetate fiber, the triacetate fibers such as cellulose, staple fibre, fibrillation staple fibre such as using comminution pulp, cotton be can use separately or mix or the thermoplasticity hydrophobicity chemical fibre of hydrophilicity-imparting treatment, the aerodynamic-laid web paper pulp that chemical adhesion processing forms etc. implemented.

For the method that above-mentioned material is configured as to absorber, there is no particular determination, for example, can use the method for utilizing air lay method, meltblown, jet net-spraying method, copy paper method etc. to carry out film-making.In addition,, as absorber, also can use the continuous foamed body of cellulose foaming body, synthetic resin etc.And, also can use by foaming body or the above-mentioned material disintegrating of making sheet after be configured as the material of absorber.Wherein, there are granulated polymer in the scope of paper pulp within having mixed 80%～100% scope and 20%～0% and after the upper strata of the skin butt side as absorber or the configuration SMS of the lower floor nonwoven fabric sheet as the non-skin butt side of absorber, carry out film-making that to form, have weight per unit area be 100g/m ²～2000g/m ², thickness the size absorber that is 1mm～50mm.In addition, also can configure SMS nonwoven fabric sheet on the upper strata of absorber and the both sides of lower floor.

In addition, preferably, the absorber 30 of present embodiment is not at upper-layer configured SMS nonwoven fabric sheet.In this case, because not forming moisture state at upper-layer configured SMS nonwoven fabric sheet, thereby make compression groove 80 be difficult to produce, peel off.Thus, even under the long-time environment using, compression groove 80 is also difficult to distortion, thereby is difficult to produce fold.In addition, due to not at upper-layer configured SMS nonwoven fabric sheet, so body fluid directly shifts to paper pulp from surficial sheets 10, so infiltration rate accelerates, and can prevent leakage of body fluids.

In addition, preferably, in absorber, the SMS nonwoven fabric sheet as being configured in the lower floor of absorber, disposes long fibre sheet material, and is also formed with compression groove 80 described later on this long fibre sheet material simultaneously.In this case, due to absorber from it Ceng Zhi lower floor be integrated, so absorber integral body is difficult to produce fold.

Absorber 30 both can form by the stacked hydrophilic fibre of air lay method or powder body, also can be, by air lay method, hydrophilic fibre or powder body are configured as to the air lay sheet material that sheet forms, also can for example pass through, at cotton paper (, weight per unit area 15g/m ²) above configure and sneaked into the comminution pulp of high absorption polymer and wrapped up and form with cotton paper.

The absorber 30 of present embodiment be by take protection sheet (not shown) to by cotton official form for filing a lawsuit slurry, synthetic paper-pulp etc. stacked be grammes per square metre 100g/m ²～300g/m ²the paper pulp that left and right forms wraps up and forming.Protection sheet, for keeping the shape of paper pulp, can use such as crimped paper, cotton paper etc.

Absorber 30 is the shape of extending along fore-and-aft direction, and it is roughly than the little circle left and right of back-sheet 20.Length on the width W of absorber 30 is corresponding with the hip septum femorale intermedium of adult female, is roughly 50mm～80mm.Absorber 30 is adhered to back-sheet 20 by bonding agents such as PURs.

In addition, as shown in Figure 1, in the absorber 30 of present embodiment, the length W1 on the width W of the fore-and-aft direction L center at territory, pterion CA of absorber 30 than this absorber 30 in forefoot area FA and rear region BA, at least the greatest length W2A on the width W in forefoot area FA is large.In the present embodiment, the greatest length WB on the width W in rear region BA of the greatest length WA on the width W in forefoot area FA of absorber 30 and this absorber 30 is roughly the same.Thereby, in the present embodiment, as shown in Figure 1, the length W1 on the width W of absorber 30 is larger than the greatest length W2B on the width WA in rear region BA of the greatest length W2A on the width WA in forefoot area FA of this absorber 30 and this absorber 30.

In addition, in the present embodiment, the greatest length W2A being conceived on the width WA in forefoot area FA of absorber 30 describes.But in variation, the greatest length WA on the width W in forefoot area FA of absorber 30 also can be different from the greatest length WB on the width W in rear region BA of this absorber 30.In addition, in this case, the length W1 on the width W of absorber 30 is configured at least large than the greatest length W2A on the width W in forefoot area FA of this absorber 30.

In addition, in the present embodiment, the length W1 on the width W of the fore-and-aft direction L center at territory, pterion CA of absorber 30 is larger than the length W3 on the width W of the end in the outside of the fore-and-aft direction L at territory, pterion CA of this absorber 30.

Specifically, the center of absorber 30 on the fore-and-aft direction L of territory, pterion CA has the protuberance 31 protruding to width W outside.Absorber 30 has protuberance 31 in the both sides in width W outside.By being provided with protuberance 31, the length W1 on the width W of absorber 30 is larger than the length W3 on the width W of the end in the outside of the fore-and-aft direction L at territory, pterion CA of this absorber 30.In addition, the length W1 on width W and the difference between the length W3 on width W 10mm～40mm preferably.That is, the overhang to width W outside of a protuberance 31 5mm～20mm preferably.If the difference between the length W3 on the length W1 on width W and width W is less than 10mm, likely reduce the effect that improves the rigidity of absorber 30 by protuberance 31 is set.If the difference between the length W3 on the length W1 on width W and width W is greater than 20mm, likely cannot guarantees the rigidity of protuberance 31 and cause producing fold.

In addition, in the present embodiment, extend abreast to the scope of the inside of rear region BA on fore-and-aft direction L the end in the fore-and-aft direction L outside of Cong pterion, the both ends territory CA in the width W of absorber 30 outside.Thereby in the present embodiment, the length W3 on the width W of the end in the fore-and-aft direction L at territory, pterion CA of absorber 30 outside is identical with the greatest length W2 on the width W in rear region BA of this absorber 30.

In addition, preferably, the length L 31 on the fore-and-aft direction L of the protuberance 31 of absorber 30 is shorter than the length L a on the fore-and-aft direction L of inboard compression groove 81 described later.

Lateral plate 41,42 is configured in the both sides of surficial sheets 10.Lateral plate 41,42 can be selected from the material identical with surficial sheets 10.But to absorbent commodity 1 flows outside, preferably, lateral plate 41,42 has hydrophobicity or water proofing property in order to prevent menses from crossing lateral plate 41,42.Lateral plate 41,42 covers part and the alar part 43,44 of the lateral margin of absorber 30.

In absorbent commodity 1, by the periphery of surficial sheets 10, lateral plate 41,42 and back-sheet 20 is joined together by the interior envelope of absorber 30.As the joint method of 20 of surficial sheets 10 and back-sheet, can adopt multiple in bonding dose of any one or the processing of combination heat embossing in bonding dose of heat embossing processing, ultrasound wave or PUR, ultrasound wave or PUR.

In sheet material 20, on the surface contacting with underwear, in a plurality of regions, be coated with sticker (not shown) overleaf.Sticker configures along fore-and-aft direction L off and in the rear side of absorber.Sticker is also arranged on the surface contacting with underwear at alar part 43 and alar part 44 places.Under state before use, sticker contacts with not shown releasing sheet.Releasing sheet is used for preventing that sticker is deteriorated before use.Then, by wearer, releasing sheet is peeled off in use.

In addition, in not thering is the absorbent commodity of releasing sheet, also can be configured to the package sheet material utilizing for independent packaging absorbent commodity and prevent that sticker is deteriorated before use.In the situation that sticker contacts with package sheet material, expectation, implements can not make the adhesion strength decline of sticker just can peel off the processing of sticker to the surface of package sheet material.

In addition, preferably, on sheet material 20, sticker is configured to multiple row along fore-and-aft direction L with preset width in the rear side of absorber 30 overleaf.

In addition, in this case, preferably, the preset width on the width W of sticker is 3mm～5mm, and the spacing between each sticker is 2mm～4mm, narrower than the length on the width W of sticker.If the length on the width W of the gap ratio sticker between each sticker is wide, likely between sticker, produce fold, by making, length on the width W of the gap ratio sticker between each sticker is narrow is difficult to produce fold.

On absorbent commodity 1, be formed with the compression groove 80 that compressive surfaces sheet material 10 and absorber 30 form on thickness direction.Compression groove 80 is to implement by the non-skin butt side (clothes bearing surface side) of the skin butt side to the surficial sheets of absorbent commodity 1 and absorber 30 groove that processing forms.

On absorbent commodity 1, along fore-and-aft direction L, dispose the compression groove 80 that at least one pair of compressive surfaces sheet material 10 and absorber 30 form.In addition, a pair of compression groove 80 is larger at the interval of the end in the fore-and-aft direction L outside of territory, pterion CA to each other than this pair of compression groove 80 at the interval of the fore-and-aft direction L center of territory, pterion CA to each other.That is the outside expansion on the middle mind-set width W of the fore-and-aft direction L that, compression groove 80 is configured at territory, pterion CA.

Specifically, as shown in Figure 1, compression groove 80 comprises inboard compression groove 81 and is configured in the outside compression groove 82 by width outside than inboard compression groove 81.Pair of outside compression groove 82 is larger at the interval W5 of the end in the fore-and-aft direction L outside of territory, pterion CA to each other than this pair of outside compression groove 82 at the interval W4 of the fore-and-aft direction L center of territory, pterion CA to each other.That is, outside compression groove 82 is configured to the outside expansion on width W.

At this, the absorber 30 also center on the fore-and-aft direction L of territory, pterion CA has the protuberance 31 protruding to width W outside.In addition, the center that outside compression groove 82 is configured on the fore-and-aft direction L of territory, pterion CA is expanded to the outside of width W, thereby outside compression groove 82 forms along the such structure of shape of the protuberance 31 of absorber 30.So, by compression groove 80 being configured to along the shape of the protuberance 31 of absorber 30, thereby the center on the fore-and-aft direction L of territory, pterion CA, the antagonism of absorbent commodity 1 is increased to the intensity of force of width W inner side effect, therefore can suppress to result from the fold of the center on the fore-and-aft direction L of territory, pterion CA.

In inboard compression groove 81 and outside compression groove 82, at least one is continuous ring-type.In the present embodiment, take situation that inboard compression groove 81 and outside compression groove 82 both sides are ring-type describes as example.

Compression groove 80 be arranged on comprise with Nei pterion, the center territory CA in the scavenge port butt region of wearer's the relative configuration of scavenge port around.

In addition, the center in scavenge port butt region is consistent with the fore-and-aft direction L of territory, pterion CA and the center of width that connect with wearer's scavenge port.For example, in having the absorbent commodity of alar part, the fore-and-aft direction L Shang center of alar part 43,44 is the fore-and-aft direction L Shang center of territory, pterion CA.In addition,, in not having the absorbent commodity of alar part 43,44, the longest position of length dimension on the width of absorber is the fore-and-aft direction L Shang center of territory, pterion CA.In addition, scavenge port butt region is included in the region that the crotch part with wearer connects, between wearer's two lower limbs.

In addition, be to dispose in back-sheet 20 in the situation of multiple row sticker, preferably, in this sticker, be positioned at the outside on the width W that sticker by width W outside is configured in outside described later compression groove 82.Thus, due to multiple row in the sticker that configures, be positioned at the width W outside that is arranged on outside compression groove 82 by the sticker of width W outside, therefore, because being fixed on the power that underwear is subject to, be easy to be absorbed by inboard compression groove 81 and the width W outside of outside compression groove 82.Thus, the region of the inner side of inboard compression groove 81 is difficult to produce fold.

In forefoot area FA and rear region BA, be formed with a plurality of point-like compression units 90.Specifically, a plurality of point-like compression units 90 are positioned at than outside compression groove 82 by place, width W inner side and to have disperseed state configuration.

In forefoot area FA and/or rear region BA, the weight per unit area at the sidepiece place on the width W of absorber 30 is larger than the weight per unit area of the centre on the width W of this absorber 30.

In forefoot area FA and/or rear region BA, the weight per unit area at the sidepiece place on the width W of absorber 30 is larger than the weight per unit area at the sidepiece place on the width W of territory, the pterion CA of this absorber 30.

In addition, the weight per unit area of absorber and density for example can utilize following measuring method to measure.In the absorbent commodity that packaged body has been packed, the body of unpacking, unfolded absorbent commodity, the thickness of the part for measurement unit's area weight and density and area measured.Then, from absorbent commodity, cut the part for measurement unit's area weight and density, measure the weight of the part cut.Then, from the part having cut, remove the part except absorber of surficial sheets and back-sheet etc., the weight of measurement absorber.Weight based on absorber and for the area unit of account area weight of the part of measurement unit's area weight and density.Based on weight per unit area and THICKNESS CALCULATION density.

In the present embodiment, as shown in Figure 4, in absorbent commodity 1, only make the sample of absorber 30 and measure the weight of this sample.In addition, because the size of sample can improve the precision of measurement result, so be preferably made as following size.Specifically, preferably the length L S on the width W of sample is made as to 10mm, the length L T on the fore-and-aft direction L of sample is made as to 40mm.

As shown in Figure 4, in forefoot area FA, with the region of the sample of the centre on width W is made as SF1, by the region of the sample of a side of the sidepiece on width W be made as SF2, mode that the region of the sample of a side of the sidepiece on width W is made as to SF3 represents.In the CA of territory, pterion, with the region of the sample of the centre on width W is made as SC1, by the region of the sample of a side of the sidepiece on width W be made as SC2, mode that the region of the sample of a side of the sidepiece on width W is made as to SC3 represents.In rear region BA, with the region of the sample of the centre on width W is made as SB1, by the region of the sample of a side of the sidepiece on width W be made as SB2, mode that the region of the sample of a side of the sidepiece of width W is made as to SB3 represents.In addition, in the situation that the shape bending of the sidepiece on the width W of absorber 30 makes the region of this sample to width W medial movement until can guarantee square shape.

In addition, in the example of Fig. 4, in the present embodiment, the weight per unit area of SF2 or SF3 is larger than the weight per unit area of SF1, and the weight per unit area of SB2 or SB3 is larger than the weight per unit area of SB1.In addition, the weight per unit area of SF2 or SF3 is larger than the weight per unit area of SC2 or SC3, and the weight per unit area of SB2 or SB3 is larger than the weight per unit area of SC2 or SC3.

In addition, preferably, compression groove 80 is positioned at than the region of the weight per unit area maximum on the width W of absorber 30 to be located in the inner part.The region less with weight per unit area compared, body fluid can move to the larger region of weight per unit area because of capillary tube effect, by compression groove 80 being arranged on than the larger region of weight per unit area in width W outside, locate in the inner part, compression groove 80 becomes leakproof wall, can reduce leakage of body fluids.Therefore in addition,, owing to utilizing compression groove 80 to form the groove that rigidity is larger, even if be subject to the power of the inner side on width W, absorber 30 is also difficult to produce fold to the inner side on width W.Thus, even the in the situation that of long-time use absorbent commodity, also can suppress to result from the fold on absorbent commodity.

(manufacture method of absorbent commodity)

The part of manufacture method for the absorbent commodity 1 of present embodiment then, is described.In addition, for unaccounted method, can use existing method.In the manufacture method of absorbent commodity, as the 1st step, carry out sheet material and generate operation.Then,, as the 2nd step, carry out sheet material bonding process.Specifically, utilize for example hot melt to fetch gluing of surfaces sheet material 10 and lateral plate 41,42.

As the 3rd step, carry out absorber molding procedure.Specifically, utilize forming tube to carry out molding and form absorber 30 paper pulp of the material as absorber.In addition, the sheet material that the sheet material of the 1st step generates operation and the 2nd step generate operation also can with the reversed order of the absorber molding procedure of the 3rd step.

In the 4th step, carry out bonding process.Specifically, the absorber 30 that carried out molding in the 3rd step and the surficial sheets and the articulate bonding process of lateral plate that in the 2nd step, have engaged.

In the 5th step, form the formation engineering of compression groove.Specifically, compressive surfaces sheet material 10 and absorber 30 on thickness direction, form groove shape compression unit 80 and point-like compression unit 90.

In the 6th step, carry out back-sheet bonding process.Specifically, by coated heat melten gel bonding agent, the absorber 30 that has formed compression groove is joined together with surficial sheets 10, lateral plate 41,42 and back-sheet 20.

Afterwards, carry out in the non-skin butt side of sheet material 20 overleaf (clothes bearing surface side) coating as the packaging process of operation, folding process and the packing absorbent commodity 1 of the bonding agent of anti-slip material.Utilize above-mentioned operation, can manufacture the absorbent commodity of present embodiment.

(effect)

In the absorbent commodity 1 of present embodiment, the length W1 of the fore-and-aft direction L center at territory, pterion CA of absorber 30 is larger than the length W2 on the width W in forefoot area FA and rear region BA of this absorber 30.Thus, according to this absorbent commodity, due to comparing with the greatest length WA situation little with WB on width in rear region BA at forefoot area FA of this absorber of Length Ratio on the width of the fore-and-aft direction L center at territory, pterion CA with absorber,, compare with the absorbent commodity that the mode of the width inner side depression of mind-set absorber in the fore-and-aft direction in territory, pterion with at absorber forms, the intensity to width W inner side of absorbent commodity 1 raises, and therefore can suppress to result from the fold at the fore-and-aft direction L center of territory, pterion CA.

At this, in (a) of Fig. 5, represented when the absorbent commodity of fixing prior art, because near the power of shank hip thigh acts on the schematic diagram of the state of strong F to the inner side on width W, in (b) of Fig. 5, represented when the absorbent commodity of fixing present embodiment, because near the power of shank hip thigh acts on the schematic diagram of the state of strong F to the inner side on width W.In addition, Fig. 5 (a) is the cutaway view that the X-X line of take shown in Fig. 1 is benchmark to (b) of Fig. 5.

In the absorbent commodity of prior art, with the greatest length W2A and the W2B that protuberance 31 is not set is correspondingly configured to length W1 on the width of absorber of the fore-and-aft direction L center at territory, pterion CA of absorber and be equal to or less than on the width in forefoot area FA and rear region BA of this absorber.In this absorbent commodity, as shown in Fig. 5 (a), when be subject to towards the inner side of width W stressed F time, do not there is protuberance 31 with absorber 30 and correspondingly make absorber 30 towards the inner side of width W, cause absorber 30 to fold inside width W.Thus, the fold producing on the absorber of territory, pterion CA is delivered to forefoot area FA and rear region BA and causes the absorber in forefoot area FA and rear region BA also to produce fold simultaneously.So, because the fold producing in the CA of territory, pterion causes being not only territory, pterion CA, even the absorber in forefoot area FA and rear region BA also produces fold, therefore produce and have leakage of body fluids.

On the other hand, as shown in Fig. 5 (b), in the absorbent commodity 1 in present embodiment, absorber 30 has protuberance 31, so protuberance 31 can be towards the inner side of width W absorbing power F.Thus, can suppress in the fore-and-aft direction L center of territory, pterion CA the fold that the inner side on width W produces.And, by the fold at CA place, territory, pterion of decrease uptake body 30, can suppress also to produce the situation of fold because this fold causes absorber in forefoot area FA and rear region BA.Thereby, according to this absorbent commodity 1, not only can suppress to result from the fold at the CA place, territory, pterion of absorber 30, also can prevent the fold in forefoot area FA and rear region BA of absorber, therefore can improve the leakage of body fluids causing because of fold.

And, can suppress for a long time to result from the fold of fore-and-aft direction L center of territory, the pterion CA of present embodiment.Thereby, even cause the service time of absorbent commodity longer in the situation that emerging nation etc. cannot change absorbent commodity for several times on 1st because of the situation of economic situation, custom, also the fold on absorbent commodity can be suppressed to result from, the leakage of body fluids causing because of fold can be improved.

Length W1 on the width W of the fore-and-aft direction L center at territory, pterion CA of absorber 30 is larger than the length W2 on the width W of the end in the outside of the fore-and-aft direction L at territory, pterion CA of this absorber 30.

Specifically, the center of absorber 30 on the fore-and-aft direction L of territory, pterion CA has the protuberance 31 protruding to width W outside.Thus, the center on the fore-and-aft direction L of territory, pterion CA, the intensity to width W inner side of absorbent commodity 1 raises, thereby can suppress reliably fold.At this, conventionally, when attaching absorbent articles 1, the fore-and-aft direction L center of territory, pterion CA is at least positioned at the scavenge port butt region of the body fluid scavenge port that is connected to wearer.Thus, by suppressing reliably to result from the fold of the fore-and-aft direction L center of territory, pterion CA, can further improve the leakage of body fluids causing because of fold.

In addition, as the method that improves the intensity to width W inner side of absorbent commodity 1, also consider to have the method that the width of absorber 30 is integrally expanded to width W, but make wearer produce sense of discomfort because the easy lower limb wearer encloses place, therefore not preferred.Particularly forefoot area FA is the many especially regions of motion that wearer's lower limb encloses place.Thereby, if the length on the width W in the CA of territory, pterion of this absorber 30 of Length Ratio on the width W in forefoot area FA of absorber 30 is large, be easy to produce friction with wearer's lower limb root place, be therefore easy to make wearer to produce sense of discomfort.

In addition, in the absorbent commodity of prior art, conventionally, when wearer movement, be easy to cause the leakage of body fluids from width W, the in the situation that of long-time use, just can arrive the allowance of the body fluid of absorber very soon.In the absorbent commodity 1 of present embodiment, by the volume of absorber 30 is increased, be provided with the amount of the protuberance 31 protruding to width W outside, thereby can improve the allowance of body fluid, can prevent leakage of body fluids.In addition, because the allowance of body fluid is larger, therefore also can when wearer sees absorbent commodity 1, give wearer and feel at ease to feel.

In addition, by being provided with protuberance 31 and it being expanded to width W, when attaching absorbent articles, protuberance 31 fits near hip thigh, thereby prevents from producing space between near absorber 30 and hip thigh.In addition,, because wearer can feel the existence of absorber 30 near hip thigh, therefore can make wearer produce and feel at ease to feel.In addition, owing to being provided with protuberance 31, therefore, when absorbent commodity 1 is fixed on underwear, protuberance 31 forms labelling, and user is easy to hold fixed position.Thus, absorbent commodity can be fixed on to correct position, thereby be difficult to occur the skew of fixed position.

In addition, preferably, center configuration on the fore-and-aft direction L of the protuberance 31 of absorber 30 is in the roughly the same position, fore-and-aft direction L Shang center with alar part 43,44, and the length on the fore-and-aft direction L of the length L 31 on the fore-and-aft direction L of protuberance and alar part 43,44 is identical or below it.

By making the position on the fore-and-aft direction L of position on the fore-and-aft direction L of protuberance 31 and alar part 43,44 consistent, can when attaching absorbent articles 1, bring into play to greatest extent and be difficult to make absorber 30 to produce the effect of folds.The power of pressing to width inner side being applied by wearer's lower limb is applied in territory, whole pterion.If too short the length of the length on the fore-and-aft direction L of protuberance 31 on the fore-and-aft direction L of alar part 43,44, cannot absorb the stressed of inner side on width W completely.On the other hand, if long the length of the length on the fore-and-aft direction L of protuberance 31 on the fore-and-aft direction L of alar part 43,44, not only be easy to make wearer produce sense of discomfort, before and after stressed being delivered to due to the inner side on width W, therefore make absorbent commodity 1 integral body be easy to form fold.

In addition, a pair of compression groove 80 is larger at the interval of the end in the fore-and-aft direction L outside of territory, pterion CA to each other than a pair of compression groove 80 at the interval of the fore-and-aft direction L center of territory, pterion CA to each other.That is,, in the center of the fore-and-aft direction L of territory, pterion CA, compression groove 80 is configured to the outside expansion to width W.

Specifically, compression groove 80 comprises inboard compression groove 81 and is configured in the outside compression groove 82 by width outside than inboard compression groove 81.In addition, pair of outside compression groove 82 is larger at the interval W5 to each other of the end in the fore-and-aft direction L outside of territory, pterion CA than this pair of outside compression groove 82 at the interval W4 of the fore-and-aft direction L center of territory, pterion CA to each other.

At this, the absorber 30 also center on the fore-and-aft direction L of territory, pterion CA has the protuberance 31 protruding to width W outside.In addition, outside compression groove 82 is configured in the center of the fore-and-aft direction L of territory, pterion CA to be expanded to the outside of width W, thereby outside compression groove 82 forms along the such structure of shape of the protuberance 31 of absorber 30.So, by compression groove 80 being configured to along the shape of the protuberance 31 of absorber 30, thereby in the center of the fore-and-aft direction L of territory, pterion CA, the intensity to width W inner side of absorbent commodity 1 is raise, therefore can suppress to result from the fold of the fore-and-aft direction L center of territory, pterion CA.

In addition, in the present embodiment, as the compression groove 80 of the fore-and-aft direction center of territory, pterion CA, comprise inboard compression groove 81 and be configured in the outside compression groove 82 by width outside than inboard compression groove 81.Thus, owing to utilizing inboard compression groove 81 and the such double groove of outside compression groove 82 that compression groove is set, therefore at the place, width W inner side of inboard compression groove 81, be difficult to produce distortion, therefore can suppress to result from the fold of the fore-and-aft direction L center of territory, pterion CA.

In addition, preferably, the length L 31 on the fore-and-aft direction L of the protuberance 31 of absorber 30 is shorter than the length L a on the fore-and-aft direction L of inboard compression groove 81.Due to by making the length L 31 on the fore-and-aft direction L of protuberance 31 shorter than the length L a on the fore-and-aft direction L of inboard compression groove 81, and make from the power of width W outside to inner side to be absorbed by inboard compression groove 81 and outside compression groove 82 these two grooves 2, therefore increased and suppressed to the effect of the fold of width W.

According to present embodiment, at least one of inboard compression groove 81 and outside compression groove 82 is continuous ring-type.Thus, guaranteed the rigidity in the region of width W inner side of inboard compression groove 81 and outside compression groove 82, fold that therefore can decrease uptake body 30.

In forefoot area FA and/or rear region BA, the weight per unit area at the sidepiece place of the width W of absorber 30 is larger than the weight per unit area of the centre of the width W of this absorber 30.

Specifically, as shown in Figure 4, the weight per unit area of SF2 or SF3 is larger than the weight per unit area of SF1.In addition, the weight per unit area of SB2 or SB3 is larger than the weight per unit area of SB1.

Thus, in forefoot area FA and rear region BA, the rigidity at the sidepiece place on width W is set to higher than the rigidity of the centre on width W, and near the power of the shank hip thigh while being therefore difficult to because of attaching absorbent articles 1 produces fold in the inner side of width W.In addition, though the inner side of absorber 30 on width W of hypothesis territory, pterion CA produce have fold, this fold be also difficult to absorber 30 by territory, pterion CA forwards, backwards direction L transmit.Its result, is difficult to produce fold in forefoot area FA and rear region BA.In addition, even the in the situation that of long-time use absorbent commodity, also can suppress to result from the fold on absorbent commodity.

In forefoot area FA and/or rear region BA, the weight per unit area at the sidepiece place on the width W of absorber 30 is larger than the weight per unit area at the sidepiece place on the width of territory, the pterion CA of this absorber 30.Specifically, as shown in Figure 4, the weight per unit area of SF2 or SF3 is larger than the weight per unit area of SC2 or SC3.

Thus, by increasing the weight per unit area of absorber 30 at the sidepiece place of forefoot area FA and/or rear region BA, can absorb the power being subject to from width to have increased the part of weight per unit area, the absorbing surface at center can be remained to plane.In addition, even suppose in the situation that produce and have fold on the absorber 30 in the CA of territory, pterion, fold is also difficult to the sidepiece transmission from the sidepiece of the absorber 30 in the CA of territory, pterion to forefoot area FA and/or rear region BA, therefore can suppress the fold of the absorber of forefoot area FA and/or rear region BA.

In forefoot area FA and rear region BA, be formed with a plurality of point-like compression units 90.Specifically, a plurality of point-like compression units 90 form the state of dispersion.

Thus, on the absorber 30 in forefoot area FA and rear region BA, guaranteed the rigidity of plane, made the absorber 30 in forefoot area FA and rear region BA more be difficult to produce fold.Thereby, even in the situation that the service time of absorbent commodity is longer, also can suppress to result from the fold of absorbent commodity.In addition, by forming point-like compression unit 90, compare with the situation that forms compression groove, can improve breathability.

(other embodiments)

As mentioned above, by embodiments of the present invention, disclose content of the present invention, but should not be construed as discussion and accompanying drawing that the present invention only limits to become a part for the disclosure.Those skilled in the art obviously can expect various alternative embodiments, embodiment and application technology from the disclosure.

For example, absorbent commodity is not limited to sanitary towel, can be also absorption pad, sanitary pad.In addition, for example, absorbent commodity also can be formed with fold in the width outboard end of absorber.

description of reference numerals

1 absorbent commodity; 2 absorbent main body portions; 10 surficial sheets; 20 back-sheet; 30 absorbers; 31 protuberances; 41,42 lateral plates; 43,44 alar parts; 80 compression grooves; 81 inboard compression grooves; 82 outside compression grooves; 90 point-like compression units; BA rear region; Territory, CA pterion; FA forefoot area; W width.

Claims

1. an absorbent commodity, is characterized in that,

This absorbent commodity have fore-and-aft direction and with the width of fore-and-aft direction quadrature,

And there is absorbent main body portion, this absorbent main body portion comprise the surficial sheets of liquid permeability, the back-sheet of non-liquid permeability and be arranged on above-mentioned surficial sheets and above-mentioned back-sheet between absorber,

And the both sides on the width of above-mentioned absorbent main body portion have to extended a pair of alar part outside width,

Above-mentioned absorbent main body portion has the territory, pterion that is positioned at from the root in the place ahead of above-mentioned a pair of alar part to the root at the rear of above-mentioned a pair of alar part, be positioned at than forefoot area on the front of territory, above-mentioned pterion and be positioned at than the rear region at place, Yu Kao rear, above-mentioned pterion,

Greatest length on the width in above-mentioned forefoot area and above-mentioned rear region, at least above-mentioned forefoot area of the above-mentioned absorber of Length Ratio on the width of the fore-and-aft direction center in territory, above-mentioned pterion of above-mentioned absorber is large.

2. absorbent commodity according to claim 1, is characterized in that,

Length on the width of the end in the outside of the fore-and-aft direction in territory, above-mentioned pterion of the above-mentioned absorber of Length Ratio on the width of the fore-and-aft direction center in territory, above-mentioned pterion of above-mentioned absorber is large.

3. absorbent commodity according to claim 1 and 2, is characterized in that,

In above-mentioned absorbent commodity, along fore-and-aft direction, dispose at least one pair of and compress the compression groove that above-mentioned surficial sheets and above-mentioned absorber form,

A pair of above-mentioned compression groove is larger at the interval of the end in the fore-and-aft direction outside in territory, above-mentioned pterion to each other than a pair of above-mentioned compression groove at the interval of the fore-and-aft direction center in territory, above-mentioned pterion to each other.

4. absorbent commodity according to claim 3, is characterized in that,

Above-mentioned compression groove comprises inboard compression groove and is configured in the outside compression groove by width outside than above-mentioned inboard compression groove.

5. absorbent commodity according to claim 4, is characterized in that,

At least one in above-mentioned inboard compression groove and above-mentioned outside compression groove is continuous ring-type.

6. according to the absorbent commodity described in any one in claim 1～5, it is characterized in that,

In above-mentioned forefoot area and/or above-mentioned rear region, the weight per unit area at the sidepiece place on the above-mentioned width of above-mentioned absorber is larger than the weight per unit area of the centre on the above-mentioned width of above-mentioned absorber.

7. according to the absorbent commodity described in any one in claim 1～5, it is characterized in that,

In above-mentioned forefoot area and/or above-mentioned rear region, the weight per unit area at the sidepiece place on the above-mentioned width of above-mentioned absorber is larger than the weight per unit area at the sidepiece place on the above-mentioned width in the territory, above-mentioned pterion of above-mentioned absorber.

8. according to the absorbent commodity described in any one in claim 1～7, it is characterized in that,

In above-mentioned forefoot area and above-mentioned rear region, be formed with a plurality of point-like compression units.