CN1371671A - Absorption pad for incontinence - Google Patents
Absorption pad for incontinence Download PDFInfo
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- CN1371671A CN1371671A CN 01108364 CN01108364A CN1371671A CN 1371671 A CN1371671 A CN 1371671A CN 01108364 CN01108364 CN 01108364 CN 01108364 A CN01108364 A CN 01108364A CN 1371671 A CN1371671 A CN 1371671A
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Abstract
The absorbing pad for incontinence has a back lining piece which is liquor impermeable and air-permeable and an absorbing unit whose part is covered with back lining piece, in which the absorbing unit incldues a non-woven fabric base sheet, an absorbing area and an air permeable area, the described absorbing area is formed from several strip-like high absorbing layers extended on the surface of the non-woven fabric base sheet, and on the described air permeable area there is not high absorbing layer.
Description
The present invention relates to thin and compact absorption pad for incontinence, more particularly, relate to and to put on user crotch portion to solve the absorption pad for incontinence of his or her mild incontinence phenomenon.The absorbent article that the total confession under directions incontinent person of the term that is adopted in the literary composition " absorption pad for incontinence " uses comprises being known as absorbing sheet, absorbing liner or absorbing all goods that block.For for simplicity, according to voided volume, used term " mild incontinence " is meant that voided volume is 250cc or situation still less in the literary composition, and is relative with it, and term " serious incontinence " is meant the situation that voided volume is bigger.
In recent years, the hygienic articles of the mild incontinence phenomenon that specialized designs is used to be grown up is more and more attracted attention by market, and a lot of manufacturers are devoted to this type of Products Development energetically.The symptom of mild incontinence more is common in the women, and the degree of incontinence can to medium slight (approximately 200cc), the age bracket that tormented by this symptom be 20 years old to 50 years old from the slightest (15cc or still less).Up to now, it is special in the mild incontinence symptom that solves the adult designs having only some quite few products, just uses other goods such as sanitary towel and underpants (panty shields) to be used as succedaneum.
Goods such as sanitary towel and underpants are originally to handling the menstrual blood design, thereby can run into a lot of problems when being used to solve urinary incontinence problems.Have found that, adopt at present that wood pulp is made, also can cause a lot of problems for solving the goods that slight urinary incontinence designs.
One of them problem is, the goods that are used for handling mild incontinence at present have seepage and uncomfortable problem, can cause viscid sensation usually, because they can not provide enough absorption and performances.Cause a reason of these and other problem to be, use in the diaper in baby diapers and adult-incontinence, a very important feature is to absorb a large amount of drains of once being discharged apace.This is known as " collection " effect.On the contrary, being designed for the goods of mild incontinence symptom must can be efficiently and handle usually drain more a spot of but that number of times is frequent effectively.Adult's mild incontinence according to baby diapers and the design of adult-incontinence diaper adopts wood pulp fine hair (wood pulp fluff) to be used as its main component with goods usually.When being used to solve adult's mild incontinence, the surface of wood pulp fine hair can keep moistening, makes wearer's the skin generation erythra or the inflammation that contact with this absorbent article.
For addressing these problems, to wish to design a kind of adult's mild incontinence goods that can utilize the performance of super absorbent polymer (SAP), described super absorbent polymer has good performance when making the liquid emission collagen.Also have preferably, such absorbent article has the SAP of higher composition, preferably contains almost 100% SAP.
Second problem of absorbent article is at present, absorbent article moistening always in use.For addressing this problem, key is to obtain a structure with breathability, so that in use keep ventilative, uncomfortable, stuffiness can not become.In order to realize such structure, still the member such as last slice (surface patch) and backing sheet must not be gas-pervious, and absorbent article itself must have a kind of gas-pervious structure.
Adult's mild incontinence with the 3rd problem that goods institutes must solve is, suffers people that the mild incontinence symptom perplexs normally aperiodically, fall ill to moment, and makes patient keep the high-pressure state constantly.For example, mild incontinence produces owing to the normal conceived abdominal pressure that is caused changes through regular meeting, perhaps owing to sneeze, burst into laughter or body kinematics (as jump) causes.In other words, the symptom of the incontinence women that betides normally and living healthily through regular meeting.Therefore, it is highly important that Inconvenient article can be worn, and takes extremely thin and compact form as far as possible with merging into background, carried so that goods other or on the shelf can be placed in handbag or the pocket.
Inconvenient article the 4th problem that must solve be that user has various shape and size.A kind of absorbent article must have various difform three-dimensional (solid) adaptability that is suitable for wearer's human region.
The objective of the invention is, a kind of absorption pad for incontinence that can satisfy above-mentioned various requirement is provided.
According to an aspect of the present invention, provide a kind of absorption pad for incontinence, having comprised:
One absorptive unit, this absorptive unit comprises a supatex fabric substrate, an absorption region and a ventilation area, described absorption region is made of a plurality of high absorbed layer members that are the strip extension on the surface of supatex fabric substrate, described ventilation area is adjacent to the supatex fabric substrate, is formed on the zone that does not have high absorbed layer;
One backing sheet, this backing sheet coats absorptive unit, and a part that stays the surface of absorptive unit is not capped; And
One is arranged on the lip-deep collecting layer of absorptive unit, and this collecting layer covers not at least a portion of covering surfaces.
In addition, absorptive unit can be coated by a disperse layer.In the case, preferably there is a collecting layer to be arranged on this disperse layer, and covers at least a portion of the not covering surfaces of absorptive unit.
According to another aspect of the present invention, provide a kind of absorption pad for incontinence, by saturating liquid of a usefulness and gas-pervious sheet material make last slice, the backing sheet and of a liquid-impermeable but gas-permeable be located in the backing sheet and last slice between absorptive unit form.In the case, absorptive unit comprises a supatex fabric substrate, an absorption region and an absorbing sheet, described absorption region is made of a plurality of high absorbed layers that are the strip extension on the surface of supatex fabric substrate, and described absorbing sheet has a ventilation area, does not have high absorbed layer on this zone.
The backing sheet and last slice can be bonding mutually along their outer peripheral portion, thereby between these two sheet materials, form a space, described absorptive unit can be positioned at this space.
Absorptive unit can be made of the first stacked each other absorbing sheet and second absorbing sheet.Under this structure, first absorbing sheet can be made of the high absorbed layer in several absorption regions.Second absorbing sheet can be configured to corresponding to one of first absorbed layer or all have one or more high absorbed layers on the position of absorption regions.
In one embodiment, absorptive unit has two absorption regions.First absorption region can be positioned at the middle part of first absorbing sheet, and second absorption region is positioned at the horizontal exterior lateral area of first absorbing sheet.Under this structure, preferably, the ratio of the width (Bw) of the width of first absorption region (Aw) and second absorption region is 1: in the scope of 0.3-2.
Preferably, high absorbed layer mainly is made of super absorbent polymer.Also have preferably, high absorbed layer can be divided into multistage or many.
In addition, the supatex fabric substrate of absorbing sheet can be adhered to other member of absorption pad for incontinence in the ventilation area.For example, the supatex fabric substrate can be adhered to slice, other layer of backing sheet, disperse sheet or absorbing sheet.Bonding can finishing by a lot of suitable means like this, bonding and heat-sealing is bonding etc. as binding agent.
In addition, last slice, backing sheet, absorptive unit and their composition member can make with degradable material.
An advantage of the absorption pad for incontinence that is made according to the present invention is that it can provide the superior ventilation property by absorption pad, and very high absorbability is provided.Such absorption pad and can prevent the humidity and the fervescence of user in use as snug as a bug in a rug when wearing.
Another advantage of the absorption pad for incontinence that is made according to the present invention is that the member of all as above sheets, backing sheet and absorptive unit and so on can be made with degradation material.Such absorption pad can be in toilet water wash away and blocking pipe not.The degraded of biodegradation or other type can take place in such absorption pad when being dropped, can not work the mischief to environment.
Fig. 1 is the plane graph according to the absorption pad for incontinence of first embodiment of the invention;
Fig. 2 cuts open the sectional elevation of getting along the line A-A among Fig. 1;
Fig. 3 is the plane graph of the embodiment of the absorptive unit in the absorption pad for incontinence shown in Figure 1;
Fig. 4 is the sectional elevation according to the absorption pad for incontinence of second embodiment of the invention;
Fig. 5 is the sectional elevation of embodiment that is used for an absorptive unit of absorption pad for incontinence shown in Figure 4;
Fig. 6 is according to the sectional elevation of the absorption pad for incontinence of third embodiment of the invention;
Fig. 7 is according to the sectional elevation of the absorption pad for incontinence of fourth embodiment of the invention;
Fig. 8 is the sectional elevation according to the absorption pad for incontinence of fifth embodiment of the invention;
Fig. 9 is the longitudinal section that the structure that can be applicable to an absorptive unit embodiment of the present invention is shown;
Figure 10 is the longitudinal section that the structure that can be applicable to another absorptive unit embodiment of the present invention is shown;
Figure 11 A is the longitudinal section that the structure that can be applicable to another absorptive unit embodiment of the present invention is shown;
Figure 11 B is the longitudinal section that the structure that can be applicable to another absorptive unit embodiment of the present invention is shown; And
Figure 12 is the longitudinal section that the structure that can be applicable to another absorptive unit embodiment of the present invention is shown.
Below in conjunction with accompanying drawing several embodiment of the present invention are described.
Fig. 1 shows according to an embodiment who is designed for the absorption pad for incontinence of minor quantities of urine of the present invention.In Fig. 1, label 1 expression one last slice, label 2 expressions one backing sheet.Last slice 1 make by the material piece such as porous supatex fabric or perforated films, this material piece is liquid, ventilative thoroughly.Backing sheet 2 preferably with can allow air and aqueous vapor by but the porous membrane that can not allow moisture pass through make, or by the bonding sandwich that becomes of one or more layers such thin film and one or more layers supatex fabric.Perhaps, backing sheet 2 can comprise that the waterproof sandwich of being made by polyethylene or polyacrylic supatex fabric constitutes, for example the fabric of spunbond-melt and spray-spunbond (S.M.S.) or spunbond-melt and spray-melt and spray-spunbond (S.M.M.S.).In a kind of like this structure, can adopt foregoing thin film.
Now see also Fig. 2 and 3, in one embodiment of the invention, absorptive unit can comprise that one is roughly orthogonal supatex fabric substrate 5, in this embodiment, this substrate is facing to backing sheet 2, and near a high absorbing area territory that constitutes by the band of a plurality of (there is shown four) high absorbed layer 6.Gapped between each high absorbed layer band 6, supatex fabric substrate 5 is come out in these gaps.In this embodiment, absorptive unit 4 has by high absorbed layer 6 and the absorption region that the zone constituted of not containing high absorbed layer, and the latter with high absorbed layer 6 separately and has formed a ventilation area that can allow air to flow into supatex fabric substrate 5.
High absorbed layer 6 preferably mainly is to be made by super absorbent polymer (SAP).In order to obtain compactedness as well as possible and absorbability, should contain SAP composition as much as possible, preferably reach 60% or higher.As described in JPA H10-168230, high absorbed layer 6 like this can be produced with business-like scale, that is, utilize the device that is known as line formula coating machine that a kind of disperse liquid (dispersion liquid) that has the graininess super absorbent polymer is coated on the surface of a supatex fabric.
In a preferred embodiment of the present invention, absorptive unit 4 and last slice between 1 folder established a disperse sheet 7.This disperse sheet 7 is made of the supatex fabric of saturating liquid, and its size is substantially equal to absorptive unit 4.Disperse sheet 7 can be kept here and see through last slice 1 and the liquid that comes, and makes these liquid to all directions disperse.Disperse sheet 7 (also can be referred to as the collecting layer) can be greater than or less than absorptive unit 4, and preferably more concentrated in the central area.Similarly, in a preferred embodiment, can between absorptive unit 4 and backing sheet 2, press from both sides and establish a slice flimsy material (tissue) 8.Flimsy material 8 can improve the dispersivity of liquid, and improves the dimensional stability of absorption pad for incontinence.Perhaps, when absorption pad for incontinence is used to collect very small amount of urine, can omit disperse sheet 7 and flimsy material 8, so that total is simpler.
Though in the aforementioned embodiment, disperse sheet 7 is at absorptive unit 4 and last slice between 1, also can be conversely with this structure, and make and slice collecting between sheet 7 and the absorptive unit 4.Perhaps, shown in Fig. 7 and 8, can omit slices 7, replace with collecting layer 7 '.The advantage of this embodiment is, absorptive unit can expand, and its top can not be subjected to a restriction of slice 1.The collecting layer that is used for this purpose preferably weight is about 30g/m
2The large volume sheet material, or the compression piece of this material.For example, can adopt indentation line thickness is the large volume perforated films of 1184 μ (being called the product of " X-27373 " as the commodity of Tredegar company production and selling).Can also adopt density is about 100g/m
2The compression sheet material of cellulose sponge system, and density is 50g/m
2The large volume supatex fabric of hollow bicomponent fibers system.
In the present invention, high absorbed layer band 6 is the layers that also have super absorbent polymer (SAP).Super absorbent polymer is the high molecular polymer that per unit weight can absorb large quantity of moisture, roughly comprises the hydrolyzate of carboxymethyl cellulose, acrylic acid and its esters, crosslinked acrylate polymer, Starch and Acrylic Acid graft copolymer, starch-acrylonitrile graft copolymer, crosslinked polyoxyethylene, crosslinked carboxymethyl cellulose, partial cross-linked water-soluble bloated copolymer for example poly(ethylene oxide) and polyacrylamide and isobutene. maleic acid.By making such copolymer mummification, just can obtain the copolymer of microgranule base.After mummification, carry out post processing usually to improve the crosslink density of copolymer particle, add antiseized (antiblocking) agent simultaneously to prevent causing the adhesion of product microgranule owing to absorbing moisture.
The high-absorbable of the super absorbent polymer that the absorption pad for incontinence that forms constructed according to the invention is comprised in can the high absorbed layer 6 by absorptive unit 4 and absorb repeatedly discharge, a spot of liquid effectively keeps dry with the surface in season last slice 1.Also have,, make non-woven substrate 5 be exposed to air flow, thereby further help to make a surface of slice 1 to keep dry state because absorptive unit 4 has the ventilation area between high absorbed layer 6.Also have, the ventilation area can be so that bending and distortion uniformly, thereby makes absorbent article can 3 D stereo ground be out of shape and be complementary with wearer's body contour.In addition, the fluid passage can also be served as in the ventilation area, so that efficiently and apace drain is sent to the surface of high absorbed layer 6.
Because the mild incontinence that is made according to the present invention can wash away or work as means such as rubbish still falls with absorption pad and be abandoned by water in toilet, thereby preferably uses biodegradable SAP material in goods.At Biodegradable material well-known in the art for example is crosslinked polyolefin, crosslinked carboxymethyl cellulose (as the United States Patent (USP) 4,650 of Gelman, 716 is described), crosslinked alginic acid, crosslinked starch and crosslinked polyamino acid.By adopting super absorbent polymer and making high absorbed layer 6, just can obtain to have the structure of higher absorption rate with the cellulosic combination of little fibrillation-fibril formation.
In the present invention, absorptive unit 4 important component part is a supatex fabric substrate 5.This supatex fabric substrate can be made of the material of total being referred to as " supatex fabric ", as wet method and dry method spunbonded non-woven fabrics and spun-laced fabric.Preferably, the volume of the supatex fabric that is adopted among the present invention is big as much as possible, comb the spun-laced fabric that fleece tangles and obtains such as adopting by making in current, and comb the hot sticky supatex fabric that the fleece heat bonding obtains by making.Also have, for a kind of degradable absorptive unit is provided, combine with above-mentioned biodegradable SAP, preferably select a biodegradable cellulose nonwoven fabric or the cellulose nonwoven fabric that can decompose is made supatex fabric substrate 5 in the water of the calcium salt that contains CMC (carboxymethyl cellulose).
Should be appreciated that the term here " degradable absorptive unit " means still not a kind of degradable absorptive unit, but also comprise absorptive unit that can in water, decompose, biodegradable, that can in fertilizer, decompose or can in soil, decompose.Should be appreciated that though abovely described a kind of degradable absorptive unit 4, it can be degradable that absorption pad for incontinence itself is done as a whole, this can by suitably select last slice and the used material of backing sheet realize.For example, can by an absorptive unit of making by water-disintegrable material, one by the non-manufacturing fabric that can in water, decompose make last slice and one such as by partial cross-linked P.V.A. (polyvinyl alcohol) but the backing sheet made of material construct the absorption pad for incontinence of a complete hydrolysis.A kind of so hydrolyzable absorption pad can wash away by water in toilet and be abandoned.
To give a definition to some terms that adopted among the present invention below.
Term " can decompose in water or hydrolyzable " means a kind of like this constituent material, and it can decompose in the water of flushing toiler easily, and can not cause pipeline or analog blocked with enough fineness disperses.
Term " biodegradable " means a kind of like this constituent material, it can pass through the effect of living organism (for example microorganism in the natural environment, fungus, enzyme), perhaps make under the manually operated condition of fertilizer for example being used to, resolve into material safe, that molecular weight is little.
Term " can be degraded in fertilizer " and be meant a kind of like this constituent material, and it can resolve into material safe, that molecular weight is little by the effect of the living organism in the fertilizer (for example microorganism, fungus, enzyme).For example, when the degradable absorptive unit of 1 part of weight (under drying regime) was made into the fertilizer inoculum of 100 parts of weight (under wetting state) and handles 40 days under 58 degrees centigrade, the weight of the degradable absorptive unit after this handles can reduce to 0% to 50% of its original dry weight.
Term " can in degraded in soil " means a kind of like this constituent material, and it can resolve into material safe, that molecular weight is little by the effect of the microorganism in the soil, fungus or enzyme when being embedded in soil.For example, when the degradable absorptive unit of 1 part of weight (under drying regime) was embedded in farmland subsurface 300cm and keeps six months, the weight of the degradable absorptive unit after this handles can reduce to 0% to 50% of its original dry weight.
Should be appreciated that all terms above-mentioned are interchangeable for the purpose of the present invention.In addition, as previously mentioned, all these terms all should be contained by a total term " degradable ".
Below in conjunction with Fig. 4 a regular pattern composite absorption pad for incontinence according to second embodiment of the invention is described.In this embodiment, a disperse sheet 7 be folded between last slice 1 and backing sheet 2 between the space in.Similarly, be provided with a slice flimsy material 8 in the space between absorptive unit 4 and backing sheet 2.Absorbing sheet 7 and flimsy material 8 are to be positioned to improve the spread of liquid and the overall dimensions stability of absorption pad for incontinence.This similar is still had any different aspect several in the structure of first embodiment shown in Fig. 1 to 3.One of them difference part is that a bonding edge member 10, one elastic components 11 are connected in the inner rim of edge member 10 on the neighboring 3 of backing sheet 2, use that edge member 10 is extended internally.
Fig. 5 shows the absorptive unit 4 among Fig. 4.This absorptive unit 4 has one and is roughly orthogonal supatex fabric substrate 5.The first absorption region A is near the zone line of supatex fabric substrate 5.This first absorption region A is made up of three that are parallel to each other high absorbed layer bands 6, between these three bands by narrow ventilation area C1 separately.The a pair of second absorption region B that is made of high absorbed layer 6 is positioned at the both sides of the first absorption region A, and high absorbed layer 6 wherein is parallel to the absorbed layer among the first absorption region A.The ventilation area C2 of broad makes the second absorption region B and the first absorption region A separately.
The width Aw of the first absorption region A with respect to the ratio of the width B w of the second absorption region B preferably 1: in the scope of 0.3-2, preferably 1: in the scope of 0.7-1.0.Also have, preferably, with the first and second absorption region A and B divide the ventilation area C2 that opens occupied the absorptive unit gross area 10% or more, 15%-50% preferably.
Owing to the first absorption region A is arranged in middle, and the second absorption region B is arranged in the both sides of the first absorption region A, be more convenient in each zone, obtaining different absorption characteristics, and be more convenient for cutting out the product that making has different qualities, can satisfy different needs.Simultaneously, this embodiment also provides a kind of structure that can change its form easily.
In addition, when absorption pad for incontinence under the situation that becomes moistening under the effect of incontinence urine, ventilation area C1 and C2 can make absorption pad for incontinence have splendid breathability, prevent absorption pad heating, stuffiness or the situation that has other to allow the people feel under the weather.
Now see also Fig. 4, a heat seal 9 is in relation to other member with absorptive unit 4, as disperse sheet 7, flimsy material 8, last slice 1 and backing sheet 2, and all these members are formed as one.The absorptive unit 4 that forms one like this is fixed and puts in place, and absorptive unit 4 and absorption pad for incontinence keep their original shapes.Also have, this heat seal 9 can provide one to allow the mobile up and down passage of liquid, particularly can serve as make liquid from last slice downwards towards flimsy material layer 8 mobile jitty.
Fig. 6 shows the third embodiment of the present invention, and wherein an absorption pad for incontinence can absorb more liquid in long period of time designed according to this invention.In this embodiment, two absorptive unit 4a and 4b (being the double structure absorptive unit) are arranged, each unit all has and is similar to structure embodiment illustrated in fig. 4.Other member shown in Figure 6 is similar to the member of absorption pad for incontinence shown in Figure 4, and is denoted by the same reference numerals, thereby repeats no more.
Embodiment shown in Figure 6 has very high absorbability, can keep good breathability again simultaneously.In this embodiment, disperse sheet 7 between last 1 and last supatex fabric substrate 5, but also can be last slice 1 between supatex fabric substrate 5 and disperse sheet 7.
In another embodiment of the present invention, as shown in Figure 7, two absorbing sheet 4a and 4b link together by the heat seal 9 on two points, and coated in such a way by a backing sheet 2, promptly, the upper surface of uppermost absorbing sheet 4a is not capped, and backing sheet 2 has along its peripheral elastic belt 12 and 13.Be provided with a collecting layer 7 ' on uppermost absorbing sheet 4a, this collecting layer has covered not part or all by the surface of backing sheet 2 coverings.
Embodiment as shown in Figure 7 can be changed as shown in Figure 8.In Fig. 8, paired absorbing sheet 4a and 4b are sealed by a disperse sheet 14 fully.Embodiment is the same as described above, and a backing sheet 2 that has elastic belt 12 and 13 on its neighboring surrounds absorbing sheet 4a and 4b and disperse sheet 14, and a part that only stays disperse sheet 14 is not capped.One collecting layer 7 ' is covered in part or all of expose portion of disperse sheet 14.
In the embodiment shown in Fig. 7 and 8, omitted last slice, have only a collecting layer 7 ' directly or by disperse sheet 14 to be adjacent to uppermost absorptive unit 4a.The advantage of this layout is that one or two absorptive unit can swell or expand and not be subjected to lip-deep last slice restriction thereon.In these two embodiment, preferably, the collecting layer is to be 30g/m with density
2Or higher large volume sheet material, or a kind of like this compression sheet material of material is made.These examples of material comprise that indentation line thickness is the large volume perforated films of 1184 μ (being called the product of " X-27373 " as the commodity of Tredegar company production and selling), or density is about 100g/m
2The compression sheet material of cellulose sponge system, or and density be 50g/m
2The large volume supatex fabric of hollow bicomponent fibers system.
Fig. 9 shows absorption pad for incontinence in accordance with another embodiment of the present invention.The absorptive unit of this embodiment is roughly orthogonal supatex fabric substrate 5 (as shown in Figure 5) by two and constitutes.Uppermost absorbing sheet 4a is made of last supatex fabric substrate 5, and the group that is made of four high absorbed layers 6 is attached to its inboard, and is parallel to each other on substrate and extension centrally.In addition, uppermost absorbing sheet has the high absorbed layer 6 of pair of outside, absorbs the both sides of bar group in laying respectively at.Following absorbing sheet 4b is made of a supatex fabric substrate, and the high absorbed layer of pair of outside is attached to down the position corresponding to the outside absorbed layer attachment points of the top absorbing sheet 4a of absorbing sheet 4b.Absorbing sheet 4a and 4b connect each other by heat seal 9, and may be in relation to other member of goods.
In the embodiment of absorptive unit shown in Figure 9, the absorbability of its both sides is far above its intermediary absorbability.On the position that heat seal 9 is set, can bend easily or be out of shape.A kind of like this absorbent article can change its shape to adapt to the body shape of user, is specially adapted to user and does not wish from the situation of both sides seepage.
In another embodiment of absorptive unit shown in Figure 10, one first absorbing sheet 4a has and is similar to structure shown in Figure 9.Has only a high absorbed layer bar 6 at the middle part of the second absorbing sheet 4b.The first and second absorbing sheet 4a and 4b connect each other by a heat seal 9.In this embodiment, the middle part of absorption pad has very strong absorbability, and has bigger area at the middle part, can and expand along with absorptive unit absorption liquid in this middle part.
In another embodiment of absorptive unit, shown in Figure 11 a, this absorptive unit comprises one first absorbing sheet 4a and one second absorbing sheet 4b, and their middle part is bonding mutually by a heat seal 9.Shown in Figure 11 B, the absorptive unit of this embodiment can expand in the both sides of center line after having absorbed liquid.
In the embodiment that adopts a heat seal, the fibrous material of hot melt is arranged on the coexistence inboard of supatex fabric substrate 5 normally in the practice.Yet, on supatex fabric substrate 5, do not have among the embodiment of hot melt material, can adopt the binding agent such as hotmelt to come bonded nonwoven textile substrate 5.
Figure 10 shows another embodiment of absorptive unit, and wherein the first absorbing sheet 4a and the second absorbing sheet 4b are bonding mutually by a hot melt adhesive layer 10 that is located between the two.By this bonding, the liquid of being more convenient for flows up and down.
Double structure absorptive unit shown in Fig. 6-12 can be selected and is constructed to be permeable to the shape adaptive capacity optimization that makes the absorbability optimization and make absorption pad, to satisfy various different application occasions and different users's needs.Though the description of front focuses on the double structure absorptive unit that is made of two absorbing sheets, the also four-layer structure that can have three-decker even be made up of four absorbing sheets is so that obtain higher absorbability.
Though various embodiments of the present invention discussed above point out, non-woven absorbed layer in the above, and high absorbed layer is below, should be appreciated that, the two position relation also can be conversely, promptly substrate absorb bar below.Also have, in the embodiment that adopts the double structure absorptive unit, the position of two absorbing sheets relation and/or orientation can promptly, can be arranged to high absorbed layer to face mutually, as shown in figure 12 conversely.In addition, though in a lot of embodiment discussed above, banded high absorbed layer is described as along vertically the extending in parallel to each other of absorption pad for incontinence, also they can be designed to along perpendicular to absorption pad for incontinence longitudinally direction extend.Adopt among the embodiment of double structure absorptive unit one, can be wherein one group absorb bar be parallel to absorption pad for incontinence vertically, and other absorption bar perpendicular to absorption pad for incontinence vertically.
Though above description focuses on mild incontinence each embodiment with absorption pad, but should be appreciated that, range of application of the present invention is very wide, can be from very slight absorption pad for incontinence to the baby and adult's diaper, as long as change size and the characteristic of the above each embodiment simply.
Claims (19)
1. absorption pad for incontinence comprises:
One absorptive unit (4), this absorptive unit comprises a supatex fabric substrate (5), an absorption region and a ventilation area, described absorption region is made of a plurality of high absorbed layer members (6) that are the strip extension on the surface of supatex fabric substrate (5), described ventilation area is adjacent to described supatex fabric substrate (5), is formed on the zone that does not have high absorbed layer (6);
One backing sheet (2), this backing sheet coats described absorptive unit (4), and a part that stays the surface of absorptive unit (4) is not capped; And
One is arranged on the lip-deep collecting layer (7) of described absorptive unit (4), and this collecting layer covers at least a portion of described not covering surfaces.
2. absorption pad for incontinence as claimed in claim 1 is characterized in that, described absorptive unit (4) is coated by a disperse layer (14), and described collecting layer is arranged on this disperse layer, and covers at least a portion of the not covering surfaces of described absorptive unit (4).
3. absorption pad for incontinence, the absorptive unit (4) that last slice (1) of being made by saturating liquid of a usefulness and gas-pervious sheet material, the backing sheet (2) and of a liquid-impermeable but gas-permeable are located between described backing sheet (2) and last slice (1) is formed, and described absorptive unit (4) comprising:
One supatex fabric substrate (5), an absorption region and a ventilation area, described absorption region is made of a plurality of high absorbed layers (6) that are the strip extension on the surface of supatex fabric substrate (5), described ventilation area is adjacent to described supatex fabric substrate (5), is formed on the zone that does not have high absorbed layer (6).
4. absorption pad for incontinence as claimed in claim 3 is characterized in that, the outer peripheral portion of described backing sheet (2) and last slice (1) is bonding mutually, and described absorptive unit (4) is positioned between slice (1) and the backing sheet (2).
5. as claim 3 or 4 described absorption pad for incontinence, it is characterized in that described supatex fabric substrate (5) is adhered to described last slice (1) in the ventilation area.
6. as claim 3 or 4 described absorption pad for incontinence, it is characterized in that described supatex fabric substrate (5) is adhered to described backing sheet (2) and last slice (1) in the ventilation area.
7. as each described absorption pad for incontinence among the claim 1-6, it is characterized in that described absorptive unit (4) is made of stacked each other a plurality of absorbing sheets (4a, 4b).
8. absorption pad for incontinence as claimed in claim 7, it is characterized in that, described absorptive unit (4) is to be made of stacked mutually first absorbing sheet (4a) and second absorbing sheet (4b), first absorbing sheet (4a) has high absorbed layer (6) on the position corresponding to first absorption region and second absorption region, and second absorbing sheet (4b) only has a high absorbed layer (6) on the position corresponding to second absorption region.
9. absorption pad for incontinence as claimed in claim 7, it is characterized in that, described absorptive unit (4) is to be made of stacked mutually first absorbing sheet (4a) and second absorbing sheet (4b), first absorbing sheet (4a) has high absorbed layer (6) on the position corresponding to first absorption region and second absorption region respectively, and second absorbing sheet (4b) only has a high absorbed layer (6) on a position corresponding to the first area.
10. absorption pad for incontinence as claimed in claim 8 or 9 is characterized in that, the ratio of the width of described first absorption region (Aw) and the width (Bw) of described second absorption region is 1: in the scope of 0.3-2.
11., it is characterized in that described high absorbed layer (6) mainly is made of super absorbent polymer as each described absorption pad for incontinence among the claim 1-10.
12. absorption pad for incontinence as claimed in claim 11 is characterized in that, described high absorbed layer (6) contains 60wt.% or more super absorbent polymer.
13., it is characterized in that described high absorbed layer (6) is that the fibriilar mixture by super absorbent polymer and fibrillation constitutes as each described absorption pad for incontinence among the claim 1-12.
14., it is characterized in that described high absorbed layer (6) is divided into many of the extension that is parallel to each other as each described absorption pad for incontinence among the claim 1-13.
15., it is characterized in that (4a, 4b) is bonding mutually for described absorbing sheet as each described absorption pad for incontinence among the claim 7-14.
16. as each described absorption pad for incontinence among the claim 7-14, it is characterized in that described a plurality of absorbing sheets (4a, 4b) stacked on top of each other have constituted the complete bonding absorptive unit (4) each other by being located in thermoplastic resin (9) between the adjacent absorbing sheet.
17., it is characterized in that described non-woven substrate (5) is adhered to backing sheet (2) in the ventilation area as each described absorption pad for incontinence among the claim 1-16.
18., it is characterized in that all members of described absorption pad for incontinence are all made with biodegradable material as each described absorption pad for incontinence among the claim 1-17.
19., it is characterized in that all member structures of described absorption pad for incontinence are made with hydrolyzable material as each described absorption pad for incontinence among the claim 1-17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011083646A CN1188094C (en) | 2001-02-28 | 2001-02-28 | Absorption pad for incontinence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011083646A CN1188094C (en) | 2001-02-28 | 2001-02-28 | Absorption pad for incontinence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1371671A true CN1371671A (en) | 2002-10-02 |
| CN1188094C CN1188094C (en) | 2005-02-09 |
Family
ID=4657198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011083646A Expired - Fee Related CN1188094C (en) | 2001-02-28 | 2001-02-28 | Absorption pad for incontinence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1188094C (en) |
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