CN2810554Y - Close-fitting liner - Google Patents
Close-fitting liner Download PDFInfo
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- CN2810554Y CN2810554Y CN 200420057365 CN200420057365U CN2810554Y CN 2810554 Y CN2810554 Y CN 2810554Y CN 200420057365 CN200420057365 CN 200420057365 CN 200420057365 U CN200420057365 U CN 200420057365U CN 2810554 Y CN2810554 Y CN 2810554Y
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- woven fabrics
- panty liners
- retention tab
- fiber
- liquid retention
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Abstract
This utility model provides a kind of panty liners, and it is slim and soft, and is the structure that can guarantee Liquid Absorption speed and absorptive capacity.Panty liners is made of liquid retention tab (11) that forms with a slice non-woven fabrics and back sheet (12).The non-woven fabrics that forms liquid retention tab (11) is the two-layer spun-laced nonwoven fabric with upper strata (15) and lower floor (16).Water-wetness by lower floor (16) so just can be drawn into liquid rapidly in the liquid retention tab (11) than upper strata (15) height.
Description
Technical field
The present invention relates to slim, soft and can give panty liners with the sense of underwear one, particularly relate to liquid and be difficult to diffusion, and can bring into play the panty liners of rapid suction liquid functional at the skin side surface.
Background technology
Be bonded in that underwear crotch portion is inboard to be used the date of panty liners beyond the female pathology day, be used in order to absorb vaginal secretions such as leucorrhea.It is the sensation of one that this panty liners wishes to give with underwear, slim and soft, and has the ability that keeps liquid such as vaginal secretions, and liquid is difficult to diffusion at the skin side surface.
Following patent documentation 1 disclosed panty liners is the structure that the skin side surface of absorbing material covers with surfacing.Described absorbing material is to use weight per unit area 40g/m
2About the hydrophilic non-woven that forms of composite synthetic fibre.Described surfacing is cotton fiber 100% and the non-woven fabrics that forms with spraying, and it uses the non-woven fabrics thinner than described absorbing material.This panty liners is Liquid Absorption and remain in the described absorbing material, and described surfacing is not the thick material as keeping liquid, and its function is that liquid is seen through to absorbing material.Therefore, on described surfacing, be formed with liquid is seen through the hole to a plurality of liquid of absorbing material guiding usefulness.
Following patent documentation 2 disclosed panty liners are to make single non-woven fabric plate be positioned at the skin side, have liquid impermeability barrier layer in the side of wearing the clothes.Described non-woven fabric plate is the fleece that forms with combing method formation rayon fiber and polyester fiber blending, by the current from nozzle ejection described fiber is interweaved again.And, make the surface fiber of non-woven fabric plate laterally move the formation recess by giving described current.And giving adhesive solution to described non-woven fabric plate, the shape of described recess is kept when being glued together between fiber, and can improve the elastic return function when compressing.
[patent documentation 1]: the spy opens flat 8-24289 communique
[patent documentation 2]: the spy opens flat 7-138865 communique
Patent documentation 1 is disclosed as described, and existing panty liners is to cover with surfacing by the surface absorbing material, and the fibre density of skin side surface is become fine and close, is difficult to produce breakage etc. at the skin side surface when giving liquid.And on surfacing, form liquid through the hole, the absorbing material channeling conduct of the liquid that gives surfacing below described liquid sees through Kong Xiangqi.
But the structure that absorbing material covers with surfacing, it is difficult to the liquid such as vaginal secretions that give surfacing are guided to absorbing material rapidly, and liquid is trapped in the surfacing easily.If want the liquid that gives surfacing is guided to absorbing material rapidly, and the aperture area rate that the described liquid that forms on surfacing sees through the hole is improved, then absorb the liquid that remains in the absorbing material easily by body pressure the surface to surfacing ooze out.
Described patent documentation 1 disclosed panty liners is in order to improve memory, and its absorbing material forms with composite synthetic fibre, and surfacing is good with the contact skin sense, is to form with 100% cotton fiber.Therefore the water-wetness of surfacing is than absorbing material height, and this just becomes the liquid that gives the surfacing surface rapidly to the difficult structure of absorbing material guiding.
Following patent documentation 2 disclosed panty liners are to make single non-woven fabric plate be positioned at the skin side, its objective is making with low cost as the frequent hygienic article of changing.
But described non-woven fabric plate the match ratio uniform distribution of its inner rayon fiber and polyester fiber, does not form the gradient of water-wetness in non-woven fabric plate inside, not the liquid that gives non-woven fabric plate rapidly to the inner inhalant mechanism of this non-woven fabric plate.Therefore the skin side surface is continued moisture state easily by liquid, is difficult to give skin with dry sensation.
Described patent documentation 2 disclosed panty liners form recess at the skin side surface of described non-woven fabric plate, by the liquid that gives this non-woven fabric plate being remained in the inner comfortableness that improves when wearing of described recess.But described non-woven fabric plate be fiber by it being positioned at the skin side surface with the strength of current to laterally moving the recess that forms, so at the density height of peripheral part fiber of the described recess of skin side surface of non-woven fabric plate.Therefore, the liquid that gives non-woven fabric plate is concentrated easily the periphery that remains in recess, and the skin of giving health is with moist feeling, the comfortableness when being difficult to obtain wearing.
Described patent documentation 2 disclosed panty liners contain adhesive for the memory of the described non-woven fabric plate shape that is maintained.But containing adhesive in the non-woven fabric plate around the direct contact vagina, is being unfavorable aspect the safety of the stimulation of skin and skin.And the panty liners that forms with the non-woven fabric plate that contains adhesive is than fabric underwear rigidity height, so to be difficult to obtain with underwear be the adherent feeling of one to the wearer.
Summary of the invention
The present invention solves described existing problem, purpose is a kind of panty liners, it is the structure of and Body contact direct the non-woven fabrics with liquid maintenance function, and it sucks liquid in described non-woven fabrics good, liquid is difficult to be trapped in the skin side surface, comfortableness when wearing is good, and its integral body forms softly, and can give with underwear is the sensation of one.
Panty liners of the present invention comprises: the liquid retention tab, with overlap the wear the clothes back sheet of side of this liquid retention tab, in this panty liners, described liquid retention tab is with not containing adhesive between the bonding fiber, but form carrying out the above non-woven fabrics of interlacing a slice between the fiber, this non-woven fabrics is emerging in the skin side surface, its described skin side surface of described liquid retention tab is formed by the synthetic resin fiber of hydrophilic fibre and hydrophobicity or slightly water-wet, the side surface of wearing the clothes is formed by hydrophilic fibre at least, and the water-wetness of described liquid retention tab is to be emerging in the layer of the described side surface of wearing the clothes than the floor height that is emerging in described skin side surface.
This panty liners makes the non-woven fabrics with described liquid maintenance function be emerging in the skin side surface keeping liquid retention tab that the non-woven fabrics of function forms and back sheet as basic structure by having liquid.Therefore, needn't resemble to be provided with existing and only bring into play the surface patch (first) that liquid sees through function.Do not resemble from the excretory liquid of vagina and existing to see through surface patch, but directly keep, so the absorption of liquid maintenance is rapid with described non-woven fabrics.And the liquid retention tab that forms with described non-woven fabrics has the hydrophilic gradient that water-wetness uprises to back sheet, absorbed rapidly in the non-woven fabrics that forms the liquid retention tab so give the liquid of skin side surface.Be positioned on the surface of described non-woven fabrics of skin side surface and be difficult to residual liquid, so be difficult to give the sensation that wearer's skin is clamminess, the comfortableness when wearing is good.
Described non-woven fabrics does not contain adhesive, thus non-stimulated to skin, to wearer's skin safety.Owing to do not contain adhesive, so low rigidity of described liquid retention tab and softness, giving easily with underwear is the adherent feeling of one.Described non-woven fabrics is that hydrophilic fibre and synthetic resin fiber are interlacing at the skin side surface, so be difficult to produce afterturn and lie down at described skin side surface, keeps surface configuration easily.
Described liquid retention tab for example of the present invention is formed by a slice non-woven fabrics, and its skin side surface of this non-woven fabrics is formed by the synthetic resin fiber of hydrophilic fibre and hydrophobicity or slightly water-wet, and the side surface of wearing the clothes is formed by hydrophilic fibre at least.
At this moment Gramer's water absorption rate of best described non-woven fabrics (Network レ system absorption of water) is, the layer that is emerging in the described side surface of wearing the clothes is than the floor height that is emerging in described skin side surface, and its difference is more than the 10mm.
When forming the liquid retention tab with described a slice non-woven fabrics, described non-woven fabrics is on lower floor's fleece of possess hydrophilic property fiber, formation contains the top fiber net of described hydrophilic fibre and hydrophobicity or slightly water-wet synthetic resin fiber, and two fibroreticulate fibers are formed by interweaving together.
When like this liquid retention tab being formed with a slice non-woven fabrics, just can make panty liners as basic structure, so it is goods cheaply with the lamilated body of a slice non-woven fabrics and back sheet.And the energy slimming, give one sense easily with underwear.
In order to realize that slimming and performance keep the function of liquid, the weight per unit area that preferably constitutes described a slice non-woven fabrics of described liquid retention tab is 50～120g/m
2
Described its structure of liquid retention tab of the present invention is, two non-woven fabrics glue together formation mutually, first non-woven fabrics that is emerging in the skin side surface is formed by hydrophilic fibre and hydrophobicity or slightly water-wet synthetic resin fiber, second non-woven fabrics that is positioned at the side of wearing the clothes is formed by hydrophilic fibre at least, Gramer's water absorption rate of described second non-woven fabrics is than the described first non-woven fabrics height, and its difference is more than the 10mm.
At this moment first non-woven fabrics performance prevents the function that panty liners produces afterturn and lies down at the skin side surface, and the performance of second non-woven fabrics absorbs the function that keeps liquid.
Described liquid retention tab of the present invention, glue together mutually by first non-woven fabrics that is emerging in the skin side surface and second non-woven fabrics that is positioned at the side of wearing the clothes and to constitute, its described skin side surface of described first non-woven fabrics is formed by hydrophilic fibre and hydrophobicity or slightly water-wet synthetic resin fiber, the side surface of wearing the clothes is formed by hydrophilic fibre at least, its water-wetness is to be emerging in the layer of the described side surface of wearing the clothes than the floor height that is emerging in described skin side surface, described second non-woven fabrics is formed by hydrophilic fibre at least, and its water-wetness is the floor height that is emerging in the described side surface of wearing the clothes than described first non-woven fabrics.
At this moment preferably Gramer's water absorption rate of described first non-woven fabrics is, the layer that is emerging in the described side surface of wearing the clothes is than the floor height that is emerging in described skin side surface, its difference is more than the 10mm, Gramer's water absorption rate of described second non-woven fabrics is, than described first non-woven fabrics be emerging in the described side surface of wearing the clothes the layer Gramer's water absorption rate height, its difference is more than the 10mm.
At this moment described first non-woven fabrics also can be on lower floor's fleece of possess hydrophilic property fiber, formation contains the top fiber net of described hydrophilic fibre and hydrophobicity or slightly water-wet synthetic resin fiber, and the structure of two fibroreticulate fibers by interweaving together and forming.
On first non-woven fabrics, just form the gradient of water-wetness like this, when if further raising is positioned at the water-wetness of second non-woven fabrics below it, then suck the ability that gives skin side surface liquid and just uprise, and, make the maintenance capacity of liquid also become big by liquid is remained in second non-woven fabrics.
At this moment, preferably the weight per unit area of described first non-woven fabrics is 25～50g/m
2, the weight per unit area of described second non-woven fabrics is 20～60g/m
2
The present invention is under the state of described liquid retention tab and the overlapping mutual gummed of described back sheet, and the sharp values of stiffness of its lattice is below the 0.7mN.
The sharp values of stiffness of lattice is described value when following, limbers up, and it is the adherent feeling of one that the wearer can obtain with underwear.
Gauge under the overlapping mutual bonding state of described liquid retention tab and described back sheet is below the 1mm.
Panty liners of the present invention is the basic structure that is formed by non-woven fabrics and back sheet as liquid retention tab function, so the energy slimming can constitute the following panty liners of described 1mm.
Panty liners of the present invention is not used the surface patch of permeate body and function, keep the non-woven fabrics of function to be emerging in the skin side surface having liquid, and this non-woven fabrics is provided with the gradient of water-wetness, so can be drawn into inside to the liquid that gives panty liners skin side surface rapidly, be difficult to be detained liquid at the skin side surface.Can be slim and soft, can obtain with underwear is the adherent feeling of one.Can reduce the quantity of structure member, can be with low-cost mass production.
Description of drawings
Fig. 1 is the plane graph of expression first embodiment of the invention panty liners;
Fig. 2 is the II-II line profile of Fig. 1;
Fig. 3 is the amplification profile of explanation first embodiment panty liners structure and Liquid Absorption function;
Fig. 4 is the profile of expression second embodiment of the invention panty liners;
Fig. 5 is the amplification profile of explanation second embodiment panty liners structure and Liquid Absorption function;
Fig. 6 is the amplification profile of explanation third embodiment of the invention panty liners structure and Liquid Absorption function.
The specific embodiment
Fig. 1 is a plane graph of seeing expression first embodiment of the invention panty liners 1 from the skin side surface, Fig. 2 is the II-II line profile of Fig. 1, and Fig. 3 is the amplification profile that when structure of described panty liners 1 is amplified expression the Liquid Absorption function is carried out modal representation.
Panty liners 1 shown in Figure 1 is along the linear foot cun ratio of longitudinal direction centrage Oy direction and the elongate shape of the crossfoot modest ability of its orthogonal direction.Described front 1a of portion and the 1b of back portion be forwards with the curve shape of rear convex, 1c of right edge portion and left side portion 1d are the curve shapes to the transverse direction concavity.
Inboard at the described front 1a of portion and the 1b of back portion and limit, the left and right sides 1c of portion, 1d is formed with embossing and adds the Ministry of worker 2.This embossing adds the Ministry of worker 2 and adds hot compression and the concavity that forms from the skin side surface, and this embodiment adds the style of the Ministry of worker's 2 expression compulsory figures by described embossing.
As shown in Figure 2, the body 10 of this panty liners 1 comprises: the liquid retention tab 11 that forms by a slice non-woven fabrics and with these liquid retention tab 11 eclipsed back sheets 12 and the pressure-sensitive bond layer 13 that forms of the surface of sheet 12 overleaf.The overlapping separating sheet 20 that is bonded with at the back side of described body 10, it protects described pressure-sensitive bond layer 13.
The body 10 of panty liners 1, the side that its portion between women's thigh contacts vaginal orifice and periphery thereof is a skin side surface 3, a side opposite with it is the side surface 4 of wearing the clothes.Described body 10 is emerging in described skin side surface 3 to liquid retention tab 11, and described back sheet 12 and pressure-sensitive bond layer 13 are emerging in the described side surface 4 of wearing the clothes.Add the Ministry of worker 2 at described embossing, described liquid retention tab 11 forms concavity from the 3 pressurized heating of skin side surface.
As shown in Figure 3, form a slice non-woven fabrics of described liquid retention tab 11, it is different with lower floor 16 that its fiber is engaged in upper strata 15.Upper strata 15 is made of hydrophilic fibre and hydrophobicity or slightly water-wet synthetic resin fiber.Lower floor 16 contains hydrophilic fibre, is preferably only formed by hydrophilic fibre.
The said hydrophilic fibre of this description is meant public decides moisture rate more than 3%, preferably the fiber more than 5%.Hydrophobic fibre is meant that described public affairs decide moisture rate 0%, and the slightly water-wet fiber is meant that described public affairs decide moisture rate less than 3% and be not 0%.It is public that to decide moisture rate be when being placed in 20 ℃, the environment of relative humidity 65%, to be adsorbed on the ratio (moisture content) of the quality of moisture in this fiber to fiber quality.
Described each fiber of following illustration and public affairs thereof are decided moisture rate.In the end of each fiber name (), write down described public affairs below and decide moisture rate with %.
(hydrophilic fibre)
The Plant fiber's: cotton (8.5%), pulp (8.5%), fiber crops (12%)
Animal fiber: silk (12%)
Regenerated fiber: artificial silk (11%), CUP (11%), Pori's nosik viscose rayon (11%)
Semisynthetic fibre: acetate fiber (6.5%)
Synthetic resin fiber: just like polyamide-based (for example nylon (4.5%)), polyethenol series such hydrophilic groups such as (for example polyvinyls (5%)) with alkyl, amino, carboxyl.
In addition, the hydrophilic agent of the synthetic resin fiber coating interfacial agent that useful PP (polypropylene), PE (polyethylene), PET (polyethylene terephthalate) etc. form etc., or be concise, or concaveconvex shape or porous shape made in the surface improve the moisture hold facility.
(hydrophobic fibre)
Not by the PP of hydrophilicity-imparting treatment (0%), PE (0%)
(slightly water-wet fiber)
Not by the PET of hydrophilicity-imparting treatment (0.4%), acrylic (2%)
The liquid retention tab 11 of described embodiment, on the lower floor's fleece that forms lower floor 16, overlap to form the top fiber net on upper strata 15, fleece to such lamination carries out spraying from top fiber net one side, make between the fiber of top fiber net, between the fibroreticulate fiber of lower floor and the fibroreticulate fiber of fiber and lower floor of top fiber net interweaves, make a slice non-woven fabrics.Described liquid retention tab 11 interweaves with coming the retention tab shape by interfibrous, and does not use the adhesive (binding agent) between the bonding fiber.
For example described lower floor fleece is to form with the artificial silk of 60 quality % and the durable hydrophilic PET of 40 quality %, and its weight per unit area is 40g/m
2, the top fiber net is to form with the cotton of 70 quality % and the slightly water-wet PET of 30 quality %, its weight per unit area is 20g/m
2
Described upper strata 15 and lower floor 16 Gramer's water absorption rate is separately tested described liquid retention tab 11, just can obtain the height that experimental liquid separately sucts at the skin side surface and the side surface of wearing the clothes by measuring it.Or also can be only described top fiber net is implemented handle with the spraying that forms liquid retention tab 11 the same terms only to form upper strata 15 separately, similarly only form lower floor 16 separately, indivedual Gramer's water absorption rates of layer separately of measuring.
The weight per unit area that forms with the durable hydrophilic PET of the artificial silk of 60 quality % and 40 quality % like that is 40g/m as described
2Non-woven fabrics, its Gramer's water absorption rate 80mm, the weight per unit area that forms with the slightly water-wet PET of the cotton of 70 quality % and 30 quality % is 20g/m
2Its Gramer's water absorption rate of non-woven fabrics 69mm.
The water-wetness of described liquid retention tab 11 its upper stratas 15 and lower floor 16, i.e. Gramer's water absorption rate difference, but its difference is during less than 10mm then 15 is delayed to the water-wetness gradient of lower floor 16 from the upper strata, is difficult to the liquid that gives the skin side surface is sucked rapidly to lower floor 16.When the difference of Gramer's water absorption rate surpassed 100mm, then the hydrophilic on upper strata 15 was low excessively, and 15 speed that suck to lower floor 16 reduce from the upper strata liquid.
The skin side surface of described liquid retention tab 11 and upper strata 15, owing to contain the synthetic resin fiber of hydrophobicity or slightly water-wet, so liquid retention tab 11 can keep the moistening intensity of skin side surface when maintaining liquid, be difficult to produce breakage etc. at the skin side surface, therefore, be preferably in upper strata 15 (forming the described top fiber net of these upper strata 15 usefulness) and contain the above described synthetic resin fiber of 20 quality %.For the water-wetness that makes upper strata 15 is not very low concerning lower floor 16, preferably the synthetic resin fiber that contains of upper strata 15 is below 85 quality %.
The lower floor 16 of described liquid retention tab 11 preferably only forms with hydrophilic fibre, and preferably embodiment is such as described, and lower floor 16 contains the synthetic resin fiber of durable hydrophilic PET etc.If contain this hydrophilic synthetic resin fiber, then lower floor 16 is difficult to produce afterturn and lies down when absorption has kept liquid, guarantees the space that keeps liquid to use easily between the fiber that constitutes lower floor 16.Therefore, lower floor 16 preferably contains more than the described synthetic resin fiber 20 quality %.But if synthetic resin fiber is too much, then the rigidity of panty liners 1 is just too high, the one sense of infringement and underwear.Therefore the upper limit of lower floor's 16 contained synthetic resin fibers is 60 quality %.
This panty liners 1 is to constitute as its basic structure with liquid retention tab 11 and back sheet 12 that a slice non-woven fabrics forms, and the upper strata 15 of described liquid retention tab 11 keeps surface strength, lower floor's 16 performances to absorb the function that keeps liquid.Therefore, the weight per unit area of liquid retention tab 11 is set at 50g/m
2More than, less than 120g/m
2Less than 50g/m
2Then can not give full play to liquid-maintaining capacity.Surpass 120g/m
2Then panty liners thickening and rigidity height can not obtain the one sense with underwear crotch portion.
For the lower floor 16 that brings into play in the inside of described liquid retention tab 11 absorbs the function that keeps liquid, preferably weight per unit area is that lower floor 16 is bigger than upper strata 15.
As previously mentioned, in order to form weight per unit area 50g/m
2Above liquid retention tab 11, the processing of spraying needs can be 0.09～0.5 (kw/m each time
2), its number of processes is preferably more than 1 time below 8 times.Described processing can (kw/m
2) usefulness { 1.63 * expulsion pressure (kgf/cm
2) * injection flow (m
3/ min) } ÷ processing speed (m/min) tries to achieve.
The opening of spraying nozzle directly is 70～120 μ m, is 0.3～2.0mm to the assortment spacing of CD.For example by using 0.26 (kw/m each time
2) processing can carry out 6 times and handle, just set for and add up to that to handle can be 1.56 (kw/m
2).
By being set in each time processing in the described scope, just can be 50g/m
2Above 120g/m
2Thicker fibroreticulate fiber reliably interweave, can remain on the surface strength of skin side surface when moistening.
Described back sheet 12 is formed by polyethylene film, or is formed by the compound nonwoven cloth that the sequential layer of fiber bonded nonwoven (S) and the brown non-woven fabrics of fusion (M) being pressed S/M/S merges gummed.Back sheet 12 it is desirable to use the thing of aeration.
Described liquid retention tab 11 and back sheet 12 are bonding by heat fusing type bonding agent.For the flexibility without detriment to panty liners 1, the coating weight of described heat fusing type bonding agent is 5～30g/m preferably
2
Under the state that liquid retention tab 11 and back sheet 12 lamination glue together, its aggregate thickness size is below the 1mm.And the sharp values of stiffness of the lattice of vertical and horizontal all is below the 0.7mN.If thickness is below the 1mm and the sharp values of stiffness of lattice is below the 0.7mN, then be bonded in the distortion that can not damage underwear when underwear crotch portion uses, can obtain one sense with underwear.
Described pressure-sensitive bond layer 13 forms striated with the surperficial longitudinal direction of sheet 12 overleaf with extending in parallel.Described pressure-sensitive bond layer 13 so long as can not fix the inner face of 1 pair of underwear crotch portion of panty liners deviation position, it forms with any figure all can, for example it also can be the striated pattern that extends in parallel on the transverse direction, also is coated with on the front on sheet 12 surfaces overleaf.Sheet 12 is under the situation about being formed by the resin molding with aeration etc. overleaf, preferably carry out striated patternization without detriment to its aeration ground.Separating sheet 20, use are coated with separating medium on the paper material surface.
Described panty liners 1 is bonded in by described pressure-sensitive bond layer 13 on the inner face of underwear crotch portion and wears.This panty liners 1 is because its basic structure only is liquid retention tab 11 and back sheet 12, so easy to manufacture and can be with low-cost mass production.Thickness is below the 1mm and the sharp values of stiffness of lattice is below the 0.7mN, so can follow the distortion of underwear crotch portion, it is the sensation sense of a underwear crotch portion part that the wearer can have panty liners 1.
Have Liquid Absorption and keep the described liquid retention tab 11 of function directly to contact vagina mouth and periphery thereof, vagina Excreta etc. directly gives the skin side surface of liquid retention tab 11.The existing structure that covers with thin surfacing on the surface of absorbing material, it guides to absorbing material in order to make the liquid that gives the skin side surface see through surfacing, is limited on the accelerating liquid infiltration rate.But in the described panty liners 1, liquid does not pass through surfacing, but directly contacts liquid retention tab 11, so the absorption of energy accelerating liquid.
And liquid retention tab 11 do not contain adhesive, is not subjected to bothering of adhesive so liquid moves between fiber.And the water-wetness of lower floor 16 is higher than upper strata 15, so shown in the pattern of Fig. 3, liquid 25 sees through upper stratas 15 rapidly and is inhaled into lower floor 16, and in lower floor's 16 diffusions and remain in the lower floor 16.By the hydrophilic gradient of upper strata 15 and lower floor 16, make the absorption of liquid 25 rapid, liquid is difficult to remain in upper strata 15, so the skin side surface is difficult to skin with the sense of being clamminess the comfort in the time of obtaining wearing.
And do not contain adhesive, so be safe to skin with liquid retention tab 11 that skin directly contacts.
Fig. 4 is the profile of expression second embodiment of the invention panty liners 30, and Fig. 5 amplifies expression to the structure of described panty liners 30, and the amplification profile of its Liquid Absorption function of modal representation.
The shape of this panty liners 30 is identical with first embodiment shown in Figure 1.Body 40 is formed by liquid retention tab 31 and back sheet 12 and pressure-sensitive bond layer 13.The diagram of separating sheet 20 is omitted.Back sheet 12, pressure-sensitive bond layer 13 and separating sheet 20 are identical with described first embodiment.
The liquid retention tab 31 of this panty liners 30 is made of first non-woven fabrics 32 and second non-woven fabrics 33, and first non-woven fabrics 32 is emerging in skin side surface 3, the second non-woven fabrics 33 and is positioned at the side of wearing the clothes.First non-woven fabrics 32 and second non-woven fabrics 33 are bonding by heat fusing type bonding agent.The coating weight of heat fusing type bonding agent be do not hinder liquid from first non-woven fabrics 32 to the passing through of second non-woven fabrics 33, and do not hinder the 5～30g/m that is set in of panty liners 30 whole soft feelings
2Scope in.12 of bonding second non-woven fabrics 33 and back sheets with the coating weight of heat fusing type bonding agent also be the same.
Described first non-woven fabrics 32 is formed by the synthetic resin fiber of hydrophilic fibre and hydrophobicity or slightly water-wet.Described second non-woven fabrics 33 is only formed by hydrophilic fibre.First non-woven fabrics 32 preferably contains described synthetic resin fiber 20～85 quality % for the skin side surface 3 in panty liners 30 keeps surface strength.Second non-woven fabrics 33 also can only be formed by Plant fiber and regenerated fiber, also can contain hydrophilic synthetic resin fiber in the not high scope of the integral rigidity of panty liners 30.
First non-woven fabrics 32 is to contain cotton 70 quality %, slightly water-wet PET30 quality % in the present embodiment, and weight per unit area is 30g/m
2Spun-laced nonwoven fabric.Using each time, the processing of spraying can be 0.16 (kw/m
2), carried out handling for 6 times.Adding up to processing can be 0.96 (kw/m
2).
Described second non-woven fabrics 33 is rayon fibers 100%, and weight per unit area is 25g/m
2Spun-laced nonwoven fabric.Using each time, the processing of spraying can be 0.16 (kw/m
2), carried out handling for 3 times.Adding up to processing can be 0.48 (kw/m
2).
By improving the processing energy of first non-woven fabrics 32, and improve the fiber interweaving of first non-woven fabrics 32, can improve the surface strength of skin side surface 3 when moistening.On the other hand, can be lower than first non-woven fabrics 32 by the processing that makes second non-woven fabrics 33, and guarantee to keep liquid to use the gap between the fiber in second non-woven fabrics 33, can guarantee the absorptive capacity of liquid.
Gramer's water absorption rate be second non-woven fabrics than the first non-woven fabrics height, its difference is more than the 10mm.Liquid retention tab 31 in the present embodiment, not resembling first embodiment is two-layer spun-laced nonwoven fabric, but different non-woven fabrics 32,33 is glued together, so in order to make liquid can see through the interface of first non-woven fabrics 32 and second non-woven fabrics 33 rapidly, preferably the difference of its described Gramer's water absorption rate is more than the 20mm.Gramer's water absorption rate of first non-woven fabrics 32 is 69mm among the described embodiment, and Gramer's water absorption rate of second non-woven fabrics 33 is 113mm, and its difference is more than the 40mm.The upper limit is 100mm.
The weight per unit area of first non-woven fabrics 32 is 25～50g/m
2If then can not improve the moistening intensity of skin side surface, if surpass liquid that described scope then gives skin side surface 3 with regard to being trapped in easily in first non-woven fabrics 32 and not to second non-woven fabrics, 33 rapid permeabilities less than described scope.The weight per unit area of second non-woven fabrics 33 is 20～60g/m
2If then can not fully guarantee the maintenance capacity of liquid less than described scope, if surpass described scope then the rigidity of panty liners 30 uprise.
The summation unit area weight of the liquid retention tab 31 that is made of first non-woven fabrics 32 and second non-woven fabrics 33 is 45～110g/m
2
Shown in Fig. 5 amplifies, give the liquid 25 of skin side surface 3 in this panty liners 30, the water-wetness by second non-woven fabrics 33 is inhaled into, and sees through in first non-woven fabrics 32 rapidly.Liquid 25 is maintained at the inside of second non-woven fabrics 33 then.Therefore liquid is difficult to remain in skin side surface 3, is difficult to skin with the sense of being clamminess.
Fig. 6 has represented the panty liners 50 of third embodiment of the invention, is to amplify the amplification profile of having represented its structure and its Liquid Absorption function of modal representation.
The shape of this panty liners 50 is identical with first embodiment shown in Figure 1.Body 60 is formed by liquid retention tab 51 and back sheet 12 and pressure-sensitive bond layer 13.The diagram of separating sheet 20 is omitted.Back sheet 12, pressure-sensitive bond layer 13 and separating sheet 20 are identical with described first embodiment.
The liquid retention tab 51 of this panty liners 50 is made of first non-woven fabrics 52 and second non-woven fabrics 53, and first non-woven fabrics 52 is emerging in skin side surface 3, the second non-woven fabrics 53 and is positioned at the side of wearing the clothes.First non-woven fabrics 52 and second non-woven fabrics 53 are bonding by heat fusing type bonding agent.The coating weight of heat fusing type bonding agent be do not hinder liquid from first non-woven fabrics 52 to the passing through of second non-woven fabrics 53, and do not hinder the 5～30g/m that is set in of panty liners 50 whole soft feelings
2Scope in.12 of bonding second non-woven fabrics 53 and back sheets with the coating weight of heat fusing type bonding agent also be the same.
Panty liners 50 its thickness are below the 1mm, and the sharp values of stiffness vertical and horizontal of lattice all are below the 0.7mN.
Described first non-woven fabrics 52 has upper strata 15 and lower floor 16, is the identical structure of non-woven fabrics with the liquid retention tab 11 that constitutes the first embodiment panty liners 1.The fibre structure of upper strata 15 and lower floor 16 is identical with first embodiment, upper strata 15 is the top fiber net formation with the slightly water-wet PET of the cotton of 70 quality % and 30 quality %, and lower floor 16 is the lower floor's fleece formation with the durable hydrophilic PET of the artificial silk of 60 quality % and 40 quality %.First non-woven fabrics 52 is that the top fiber stratum reticulare is combined on lower floor's fleece, and gives the two-layer spun-laced nonwoven fabric of spraying.
But the weight per unit area of first non-woven fabrics 52 is littler than the weight per unit area of the liquid retention tab 11 of first embodiment, and the weight per unit area of first non-woven fabrics 52 is 35g/m
2, upper strata 15 is 15g/m
2, lower floor 16 is 20g/m
2Spraying processing each time can be 0.2 (kw/m
2), use is carried out handling for 6 times.The processing that adds up to can be 1.2 (kw/m
2).The weight per unit area of this first non-woven fabrics 52 is littler than described liquid retention tab 11, so described processing is can be also lower than described liquid retention tab 11.
Described second non-woven fabrics 53 is identical with second non-woven fabrics 33 of described second embodiment, is rayon fiber 100%, and weight per unit area is 25g/m
2Spun-laced nonwoven fabric.Spraying processing each time can be 0.16 (kw/m
2), use is carried out handling for 3 times.The processing that adds up to can be 0.48 (kw/m
2).
Gramer's water absorption rate of first non-woven fabrics 52 be lower floor 16 than upper strata 15 height, its difference is below the above 100mm of 10mm.Gramer's water absorption rate of second non-woven fabrics 53 is lower floor's 16 height than first non-woven fabrics 52, and its difference is more than the 10mm, and preferably more than the 20mm, the upper limit is 100mm.
Among the 3rd embodiment, Gramer's water absorption rate on the upper strata 15 of first non-woven fabrics 52 is 69mm, and Gramer's water absorption rate of lower floor 16 is 80mm, and Gramer's water absorption rate of second non-woven fabrics 53 is 113mm.
The weight per unit area ideal range of first non-woven fabrics 52 is 25～50g/m
2, the weight per unit area ideal range of second non-woven fabrics 53 is 20～60g/m
2, the summation unit area weight that is made of liquid retention tab 51 first non-woven fabrics 52 and second non-woven fabrics 53 is 45～110g/m
2
As shown in Figure 6, give the liquid 25 of skin side surface 3 in this panty liners 50, the water-wetness gradient by first non-woven fabrics 52 and the water-wetness of second non-woven fabrics 53 and be inhaled into rapidly, liquid 25 is maintained at second non-woven fabrics, 53 inside.Therefore liquid is difficult to remain in skin side surface 3, is difficult to skin with the sense of being clamminess.
Non-woven fabrics is handled by spraying and is formed among described each embodiment, but also can be that each non-woven fabrics does not contain adhesive, but makes fiber interweaving by needle point method.
[embodiment]
Following table 1 expression embodiment, table 2 expression comparative example.
(1) with Fig. 2 and the suitable embodiment of first embodiment shown in Figure 3.
Among the following embodiment spraying treatment conditions with in described first embodiment, illustrate identical.
(embodiment 1)
Its identical with as described first embodiment explanation is to use the liquid retention tab 11 of two-layer spun-laced nonwoven fabric.Upper strata 15 is by cotton (Co) 70 quality %, slightly water-wet PET30 quality %, weight per unit area 20g/m
2The top fiber net form, lower floor 16 is by rayon fiber (Ray) 60 quality %, durable hydrophilic PET40 quality %, weight per unit area 40g/m
2The lower floor fleece form.
Gramer's water absorption rate is that upper strata 15 is 69mm, and lower floor 16 is 80mm.This is described top fiber net manufacturer's area weight 30g/m individually
2Non-woven fabrics, lower floor's fleece manufacturer's area weight 30g/m individually similarly
2Non-woven fabrics, non-woven fabrics has separately been measured the result of Gramer's water absorption rate.Among each following embodiment, Gramer's water absorption rate of two-layer water thorn is tried to achieve equally like this.
Thickness is 0.51mm, and the goods sharp values of stiffness of lattice longitudinally are 0.34mN, and the sharp values of stiffness of horizontal lattice is 0.32mN.
(embodiment 2)
Use the liquid retention tab 11 of two-layer spun-laced nonwoven fabric.Upper strata 15 is by the weight per unit area 20g/m of rayon fiber 70 quality %, slightly water-wet PET30 quality %
2The top fiber net form, lower floor 16 is by the weight per unit area 40g/m of rayon fiber (Ray) 50 quality %, durable hydrophilic PET50 quality %
2The lower floor fleece form.
Gramer's water absorption rate is that upper strata 15 is 70mm, and lower floor 16 is 83mm.
Thickness is 0.51mm, and the goods sharp values of stiffness of lattice longitudinally are 0.31mN, and the sharp values of stiffness of horizontal lattice is 0.26mN.
(embodiment 3)
Use the liquid retention tab 11 of two-layer spun-laced nonwoven fabric.Upper strata 15 is by the weight per unit area 20g/m of cotton 70 quality %, slightly water-wet PET30 quality %
2The top fiber net form, lower floor 16 is by the weight per unit area 40g/m of cotton 50 quality %, rayon fiber 50 quality %
2The lower floor fleece form.
Gramer's water absorption rate is that upper strata 15 is 69mm, and lower floor 16 is 110mm.
Thickness is 0.49mm, and the goods sharp values of stiffness of lattice longitudinally are 0.33mN, and the sharp values of stiffness of horizontal lattice is 0.19mN.
(embodiment 4)
Use the liquid retention tab 11 of two-layer spun-laced nonwoven fabric.Upper strata 15 is by the weight per unit area 20g/m of rayon fiber 20 quality %, slightly water-wet PET80 quality %
2The top fiber net form, lower floor 16 is by durable hydrophilic PET50 quality %, the weight per unit area 40g/m of rayon fiber 50 quality %
2The lower floor fleece form.
Gramer's water absorption rate is that upper strata 15 is 12mm, and lower floor 16 is 83mm.
Thickness is 0.51mm, and the goods sharp values of stiffness of lattice longitudinally are 0.33mN, and the sharp values of stiffness of horizontal lattice is 0.30mN.
(2) with Fig. 4 and the suitable embodiment of second embodiment shown in Figure 5.
Among the following embodiment spraying treatment conditions with in described second embodiment, illustrate identical.
(embodiment 5)
It is identical with described second embodiment explanation.Promptly first non-woven fabrics 32 is weight per unit area 30g/m of cotton 70 quality %, slightly water-wet PET30 quality %
2Spun-laced nonwoven fabric, second non-woven fabrics 33 is rayon fiber 100 quality %, weight per unit area 25g/m
2Spun-laced nonwoven fabric.
Gramer's water absorption rate is that first non-woven fabrics 32 is 69mm, and second non-woven fabrics 33 is 113mm.
Thickness is 0.64mm, and the goods sharp values of stiffness of lattice longitudinally are 0.29mN, and the sharp values of stiffness of horizontal lattice is 0.13mN.
(embodiment 6)
Second non-woven fabrics 33 is identical with embodiment 5, and first non-woven fabrics 32 is weight per unit area 30g/m of cotton 60 quality %, durable hydrophilic PET40 quality %
2Spun-laced nonwoven fabric.
Gramer's water absorption rate is that first non-woven fabrics 32 is 92mm, and second non-woven fabrics 33 is 113mm.
Thickness is 0.65mm, and the goods sharp values of stiffness of lattice longitudinally are 0.30mN, and the sharp values of stiffness of horizontal lattice is 0.13mN.
(3) with the suitable embodiment of the 3rd embodiment shown in Figure 6.
Among the following embodiment spraying treatment conditions with in described second embodiment, illustrate identical.
(embodiment 7)
It is identical with described the 3rd embodiment explanation.
First non-woven fabrics 52 is upper strata 15 (weight per unit area 15g/m
2) cotton 70 quality %, slightly water-wet PET30 quality %, (the weight per unit area 20g/m of lower floor 16
2) the two-layer spun-laced nonwoven fabric of rayon fiber 60 quality %, durable hydrophilic PET40 quality %.
Second non-woven fabrics is identical with second non-woven fabrics of embodiment 4.
Gramer's water absorption rate is that upper strata 15 is 69mm, and lower floor 16 is 80mm.Second non-woven fabrics 53 is 113mm.
Thickness is 0.65mm, and the goods sharp values of stiffness of lattice longitudinally are 0.21mN, and the sharp values of stiffness of horizontal lattice is 0.45mN.
(4) comparative example
(comparative example 1)
Replace liquid retention tab 11, use to contain cotton 40 quality %, durable hydrophilic PET60 quality %, weight per unit area 40g/m
2The monolayer spun-laced nonwoven fabric.
Gramer's water absorption rate is 102mm.
Thickness is 0.55mm, and the goods sharp values of stiffness of lattice longitudinally are 0.45mN, and the sharp values of stiffness of horizontal lattice is 0.23mN.
(comparative example 2)
Replace liquid retention tab 11 to use two-layer spun-laced nonwoven fabric.The upper strata is by the weight per unit area 40g/m of rayon fiber 60 quality %, durable hydrophilic PET40 quality %
2The top fiber net form, lower floor is by the weight per unit area 20g/m of cotton 70 quality %, slightly water-wet PET30 quality %
2The lower floor fleece form.Promptly liquid retention tab 11 top and bottom of embodiment 1 are used conversely.
Gramer's water absorption rate is that the upper strata is 80mm, and lower floor is 69mm.
Thickness is 0.51mm, and the goods sharp values of stiffness of lattice longitudinally are 0.34mN, and the sharp values of stiffness of horizontal lattice is 0.32mN.
(comparative example 3)
Replace Fig. 4 and first non-woven fabrics 32 shown in Figure 5, use cotton 100%, weight per unit area 35g/m
2Spun-laced nonwoven fabric.Replace second non-woven fabrics 33, using at core is that 100% of hydrophilic oil preparation adheres on the core-sheath-type composite synthetic fibre of PE in PET, sheath portion, and between the fiber with the weight per unit area 35g/m of hot blast fusing
2Ventilative non-woven fabrics.
Gramer's water absorption rate is that first non-woven fabrics is 103mm, and second non-woven fabrics is 6mm.
Thickness is 2.0mm, and the goods sharp values of stiffness of lattice longitudinally are 0.75mN, and the sharp values of stiffness of horizontal lattice is 1.18mN.
(comparative example 4)
Replace first non-woven fabrics 52 shown in Figure 6, use three layers of spun-laced nonwoven fabric.Upper strata (weight per unit area 18g/m
2) and (the weight per unit area 10g/m of lower floor
2) form by rayon fiber 60 quality %, slightly water-wet PET20 quality %, hydrophobicity PP20 quality %.The middle level is by rayon fiber 100%, weight per unit area 10g/m
2Formation.
Replace second non-woven fabrics 53, using at core is that 100% of hydrophilic oil preparation adheres on the core-sheath-type composite synthetic fibre of PE in PET, sheath portion, and weight per unit area 25g/m
2Ventilative non-woven fabrics.
Gramer's water absorption rate is that upper strata, middle level, lower floor are 95mm, 113mm, 95mm, and second non-woven fabrics is 8mm.
Thickness is 1.5mm, and the goods sharp values of stiffness of lattice longitudinally are 0.76mN, and the sharp values of stiffness of horizontal lattice is 1.39mN.
(measurement)
(the sharp values of stiffness of lattice)
The sharp values of stiffness of lattice is the test film that the making handle and the sheet of panty liners same structure cut into width 25mm, length 38mm, uses the sharp implosion test machine of lattice (peace field essence is machine-processed), is as the criterion by JIS-L1018 and carries out.One end of described test film length direction is gripped with chuck, make the vibration of chuck uniform velocity, the rotating rod of record vibration is measured values of stiffness (mN) from the scale value that test film leaves moment.
(Gramer's water absorption rate)
Be as the criterion with JIS-P8141 and estimate.The non-woven fabrics that cooperates with upper strata, lower floor, first non-woven fabrics, the second non-woven fabrics identical fibre is cut off, be made into the test film of width 25mm, length 150mm.In container, put into the saline solution of concentration 0.9%, more than the degree of depth 10mm, make described test film vertically hang down into, its lower end only 5mm be immersed in the saline solution.Place and measure the height that saline solution drinks up from liquid level after ten minutes.
(soak time)
Use the 12ml syringe of not adorning syringe needle, injection testing liquid in this syringe.Experimental liquid is made of glycerol 90 quality %, ion exchange water 10 quality %.In 1 second, drip on the skin side surface of embodiment and comparative example with the described experimental liquid 1ml of syringe holder (1 milliliter), measure and to begin not had time of experimental liquid from dripping to the skin side surface.
(water absorption)
The panty liners skin side surface of embodiment and comparative example up is placed on the wire netting.Make the saline solution of concentration 0.9% in 30 seconds, flow to the skin side surface for 1 liter.Place like this and measure its quality after 1 minute.Quality after the measurement with measure before of poor quality be exactly water absorption.
(moisture-holding capacity)
The sample of having measured after the described water absorption was dewatered with the rotating speed rotation of 600rpm with centrifugal separator in 100 seconds.Measure the quality after dewatering.Quality after the measurement with measure before of poor quality be exactly moisture-holding capacity.
(diffusion into the surface area)
Use the 12ml syringe of not adorning syringe needle, injection testing liquid in this syringe.Experimental liquid is made of glycerol 90 quality %, ion exchange water 10 quality %.Make the syringe contact on the skin side surface of embodiment and comparative example, experimental liquid 1.0ml (1 milliliter) was supplied with the skin side surface in 30 seconds, place after 1 minute, measure the liquid range of scatter size of goods at vertical and horizontal.The value that multiplies each other of diffusion length and horizontal diffusion length is exactly the diffusion into the surface area longitudinally.
(skin soakage)
Use the 12ml syringe of not adorning syringe needle, injection testing liquid in this syringe.Experimental liquid is made of glycerol 90 quality %, ion exchange water 10 quality %.Make the syringe contact on the skin side surface of embodiment and comparative example, experimental liquid 0.5ml (1 milliliter) was supplied with the skin side surface in 30 seconds.Cover on the skin side surface with artificial leather then, give 50g/cm at once
2Load placed 30 minutes.Measure the quality of the artificial leather after placing.
Skin soakage (%) is tried to achieve with { (quality of artificial leather before the quality-test of test back artificial leather) ÷ experimental liquid injection rate (0.5ml=0.5g) }.
(evaluation)
Embodiments of the invention can both constitute below the thickness 1mm, it is desirable to more than the following 0.4mm of 0.8mm.The sharp values of stiffness of lattice can be below the 0.7mN, it is desirable to below the 0.5mN.Therefore be slim and follow the distortion of underwear easily.
The embodiments of the invention soak time is short, is in 25 seconds.And absorbtivity is that moisture-holding capacity also is more than the 2g more than the 3g of suitable absorption vaginal secretions.
Embodiments of the invention can be controlled at 3cm to the diffusion into the surface area
2Below, the skin soakage also can be less than 8%, the comfort in the time of obtaining wearing.
[table 1]
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | ||||||||||
| Weight per unit area | Weight per unit area | Weight per unit area | Weight per unit area | Weight per unit area | Weight per unit area | Weight per unit area | ||||||||||
| The 1st non-woven fabrics | Fiber cooperates | The upper strata | Co/PET 70/30 | 20 | Ray/PET 70/30 | 20 | Co/PET 70/30 | 20 | Ray/PET 20/80 | 20 | Co/PET 70/30 | 30 | The hydrophilic PET 60/40 of Co/ | 30 | Co/PET 70/30 | 15 |
| The middle level | - | - | - | - | - | |||||||||||
| Lower floor | The hydrophilic PET 60/40 of Ray/ | 40 | The hydrophilic PET 50/50 of Ray/ | 40 | Co/Ray 50/50 | 40 | The hydrophilic PET 50/50 of Ray | 40 | The hydrophilic PET 60/40 of Ray/ | 20 | ||||||
| The summation unit area weight | g/m 2 | 80 | 80 | 60 | 60 | 30 | 30 | 35 | ||||||||
| The hydrophilic fibers containing ratio | The upper strata | 70％ | 70 | 70％ | 70％ | 70％ | 100％ | 70％ | ||||||||
| The middle level | - | - | - | - | - | |||||||||||
| Lower floor | 100％ | 100％ | 100％ | 100％ | 100％ | |||||||||||
| Gramer's absorption of water (mm) | The upper strata | 69 | 70 | 69 | 12 | 69 | 92 | 69 | ||||||||
| Gramer's absorption of water (mm) | The middle level | - | - | - | - | - | ||||||||||
| Gramer's absorption of water (mm) | Lower floor | 80 | 83 | 110 | 83 | 80 | ||||||||||
| Method for making | The water thorn | The water thorn | The water thorn | The water thorn | The water thorn | The water thorn | The water thorn | |||||||||
| The 2nd non-woven fabrics | Fiber cooperates | The upper strata | - | - | - | - | Ray100％ | 25 | Ray100％ | 25 | Ray 100％ | 25 | ||||
| The middle level | ||||||||||||||||
| Lower floor | ||||||||||||||||
| The summation unit area weight | g/m 2 | - | - | - | - | 25 | 25 | 25 | ||||||||
| The hydrophilic fibers containing ratio | The upper strata | - | - | - | - | 100％ | 100％ | 100％ | ||||||||
| The middle level | ||||||||||||||||
| Lower floor | ||||||||||||||||
| Gramer's absorption of water (mm) | The upper strata | - | - | - | - | 113 | 113 | 113 | ||||||||
| Gramer's absorption of water (mm) | The middle level | |||||||||||||||
| Gramer's absorption of water (mm) | Lower floor | |||||||||||||||
| Method for making | - | - | - | - | The water thorn | The water thorn | The water thorn | |||||||||
| Back sheet | Material | Non-poisture-penetrability film | Non-poisture-penetrability film | Non-poisture-penetrability film | Non-poisture-penetrability film | Non-poisture-penetrability film | Non-poisture-penetrability film | Non-poisture-penetrability film | ||||||||
| Products thickness | (mm) | 0.51 | 0.51 | 0.49 | 0.51 | 0.64 | 0.65 | 0.65 | ||||||||
| The sharp values of stiffness (mN) of lattice | Goods vertically | 0.34 | 0.31 | 0.33 | 0.33 | 0.29 | 0.30 | 0.21 | ||||||||
| Goods laterally | 0.32 | 0.26 | 0.19 | 0.30 | 0.13 | 0.13 | 0.45 | |||||||||
| Soak time | (second) | 20.3 | 18.7 | 19.8 | 13.4 | 14.3 | 19.3 | 11.5 | ||||||||
| Water absorption | (g) | 3.4 | 3.5 | 3.8 | 3.0 | 4.6 | 5.3 | 4.8 | ||||||||
| Moisture-holding capacity | (g) | 2.3 | 2.5 | 2.8 | 2.1 | 3.1 | 3.6 | 3.4 | ||||||||
| Diffusion area | (cm 2) | 2.2 | 2.6 | 1.7 | 2.2 | 1.0 | 2.7 | 0.6 | ||||||||
| The skin soakage | (％) | 7.70 | 7.84 | 7.41 | 6.01 | 5.94 | 6.07 | 5.79 | ||||||||
[table 2]
| Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |||||||
| Weight per unit area | Weight per unit area | Weight per unit area | Weight per unit area | |||||||
| The 1st non-woven fabrics | Fiber cooperates | The upper strata | The hydrophilic PET 40/60 of Co/ | 40 | The hydrophilic PET 60/40 of Ray/ | 40 | Co 100％ | 35 | Ray/PET/PP 60/20/20 | 18 |
| The middle level | - | Ray 100％ | 10 | |||||||
| Lower floor | Co/PET 70/30 | 20 | Ray/PET/PP 60/20/20 | 10 | ||||||
| The summation unit area weight | g/m 2 | 40 | 60 | 35 | 38 | |||||
| The hydrophilic fibers containing ratio | The upper strata | 100％ | 100％ | 100％ | 60％ | |||||
| The middle level | - | 100％ | ||||||||
| Lower floor | 70％ | 600 | ||||||||
| Gramer's absorption of water (mm) | The upper strata | 102 | 80 | 103 | 95 | |||||
| Gramer's absorption of water (mm) | The middle level | - | 113 | |||||||
| Gramer's absorption of water (mm) | Lower floor | 69 | 95 | |||||||
| Method for making | The water thorn | The water thorn | The water thorn | The water thorn | ||||||
| The 2nd non-woven fabrics | Fiber cooperates | The upper strata | - | - | PE/PET 100% (hydrophilic oil preparation adheres to) | 35 | PE/PET 100% (hydrophilic oil preparation adheres to) | 25 | ||
| The middle level | ||||||||||
| Lower floor | ||||||||||
| The summation unit area weight | g/m 2 | - | - | 35 | 25 | |||||
| The hydrophilic fibers containing ratio | The upper strata | - | - | 100％ | 100％ | |||||
| The middle level | ||||||||||
| Lower floor | ||||||||||
| Gramer's absorption of water (mm) | The upper strata | - | - | 6 | 8 | |||||
| Gram Lay thumb absorption of water (mm) | The middle level | |||||||||
| Gramer's absorption of water (mm) | Lower floor | |||||||||
| Method for making | - | - | Ventilative | Ventilative | ||||||
| Back sheet | Material | Non-poisture-penetrability film | Non-poisture-penetrability film | Non-poisture-penetrability film | Non-poisture-penetrability film | |||||
| Products thickness | (mm) | 0.56 | 0.51 | 2.00 | 1.50 | |||||
| The sharp values of stiffness (mN) of lattice | Goods vertically | 0.45 | 0.34 | 0.75 | 0.76 | |||||
| Goods laterally | 0.23 | 0.32 | 1.18 | 0.39 | ||||||
| Soak time | (second) | 17.6 | 21.2 | 49.4 | 38.3 | |||||
| Water absorption | (g) | 2.7 | 3.3 | 6.8 | 5.6 | |||||
| Moisture-holding capacity | (g) | 1.6 | 2.3 | 2.1 | 1.9 | |||||
| Diffusion area | (cm 2) | 4.0 | 3.5 | 3.7 | 3.6 | |||||
Claims (12)
1, a kind of panty liners, it is characterized in that, it comprises: the liquid retention tab, with overlap the wear the clothes back sheet of side of this liquid retention tab, in this panty liners, described liquid retention tab is with not containing adhesive between the bonding fiber, but form carrying out the above non-woven fabrics of interlacing a slice between the fiber, this non-woven fabrics is emerging in the skin side surface, its described skin side surface of described liquid retention tab is formed by the synthetic resin fiber of hydrophilic fibre and hydrophobicity or slightly water-wet, the side surface of wearing the clothes is formed by hydrophilic fibre at least, and the water-wetness of described liquid retention tab is to be emerging in the layer of the described side surface of wearing the clothes than the floor height that is emerging in described skin side surface.
2, panty liners as claimed in claim 1, wherein, described liquid retention tab is formed by a slice non-woven fabrics, and its skin side surface of this non-woven fabrics is formed by the synthetic resin fiber of hydrophilic fibre and hydrophobicity or slightly water-wet, and the side surface of wearing the clothes is formed by hydrophilic fibre at least.
3, panty liners as claimed in claim 2, wherein, Gramer's water absorption rate of described non-woven fabrics is, and the layer that is emerging in the described side surface of wearing the clothes is than the floor height that is emerging in described skin side surface, and its difference is more than the 10mm.
4, as claim 2 or 3 described panty liners, wherein, described non-woven fabrics is on lower floor's fleece of possess hydrophilic property fiber, formation contains the top fiber net of described hydrophilic fibre and hydrophobicity or slightly water-wet synthetic resin fiber, and form by two fibroreticulate fibers are interweaved together.
5, as claim 2 or 3 described panty liners, wherein, the weight per unit area that constitutes described a slice non-woven fabrics of described liquid retention tab is 50～120g/m
2
6, panty liners as claimed in claim 1, wherein, described liquid retention tab is, two non-woven fabrics glue together formation mutually, first non-woven fabrics that is emerging in the skin side surface is formed by hydrophilic fibre and hydrophobicity or slightly water-wet synthetic resin fiber, second non-woven fabrics that is positioned at the side of wearing the clothes is formed by hydrophilic fibre at least, and Gramer's water absorption rate of described second non-woven fabrics is than the described first non-woven fabrics height, and its difference is more than the 10mm.
7, panty liners as claimed in claim 1, wherein, described liquid retention tab, glue together mutually by first non-woven fabrics that is emerging in the skin side surface and second non-woven fabrics that is positioned at the side of wearing the clothes and to constitute, its described skin side surface of described first non-woven fabrics is formed by hydrophilic fibre and hydrophobicity or slightly water-wet synthetic resin fiber, the side surface of wearing the clothes is formed by hydrophilic fibre at least, its water-wetness is to be emerging in the layer of the described side surface of wearing the clothes than the floor height that is emerging in described skin side surface, described second non-woven fabrics is formed by hydrophilic fibre at least, and its water-wetness is the floor height that is emerging in the described side surface of wearing the clothes than described first non-woven fabrics.
8, panty liners as claimed in claim 7, wherein, Gramer's water absorption rate of described first non-woven fabrics is, the layer that is emerging in the described side surface of wearing the clothes is than the floor height that is emerging in described skin side surface, its difference is more than the 10mm, Gramer's water absorption rate of described second non-woven fabrics is, is emerging in Gramer's water absorption rate height of the layer of the described side surface of wearing the clothes than described first non-woven fabrics, and its difference is more than the 10mm.
9, as claim 7 or 8 described panty liners, wherein, described first non-woven fabrics is on lower floor's fleece of possess hydrophilic property fiber, formation contains the top fiber net of described hydrophilic fibre and hydrophobicity or slightly water-wet synthetic resin fiber, and forms by two fibroreticulate fibers are interweaved together.
10, as each described panty liners of claim 6 to 8, wherein, the weight per unit area of described first non-woven fabrics is 25～50g/m
2, the weight per unit area of described second non-woven fabrics is 20～60g/m
2
11, as claim 1 to 3,6 to 8 each described panty liners, wherein, described liquid retention tab and described back sheet is overlapping and the state of mutual gummed under the sharp values of stiffness of lattice be below the 0.7mN.
12, as claim 1 to 3,6 to 8 each described panty liners, wherein, the gauge under the overlapping and mutual bonding state of described liquid retention tab and described back sheet is below the 1mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003431364A JP4275521B2 (en) | 2003-12-25 | 2003-12-25 | Panty liner |
| JP2003431364 | 2003-12-25 |
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| Publication Number | Publication Date |
|---|---|
| CN2810554Y true CN2810554Y (en) | 2006-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420057365 Expired - Lifetime CN2810554Y (en) | 2003-12-25 | 2004-12-20 | Close-fitting liner |
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|---|---|
| JP (1) | JP4275521B2 (en) |
| CN (1) | CN2810554Y (en) |
| TW (1) | TWM274925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101541277B (en) * | 2006-11-27 | 2013-01-23 | 尤妮佳股份有限公司 | Absorbent article |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5123478B2 (en) * | 2005-10-24 | 2013-01-23 | ユニ・チャーム株式会社 | Absorbent articles |
| JP4944592B2 (en) * | 2006-12-19 | 2012-06-06 | ユニ・チャーム株式会社 | Absorbent sheet and disposable diaper using the absorbent sheet |
| RU2500844C2 (en) * | 2008-12-25 | 2013-12-10 | Као Корпорейшн | Non-woven fabric and method of its production |
| JP6832024B1 (en) * | 2020-01-10 | 2021-02-24 | Ｄｓｇジャパン株式会社 | Absorbents and disposable diapers |
-
2003
- 2003-12-25 JP JP2003431364A patent/JP4275521B2/en not_active Expired - Lifetime
-
2004
- 2004-11-17 TW TW93218449U patent/TWM274925U/en not_active IP Right Cessation
- 2004-12-20 CN CN 200420057365 patent/CN2810554Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101541277B (en) * | 2006-11-27 | 2013-01-23 | 尤妮佳股份有限公司 | Absorbent article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4275521B2 (en) | 2009-06-10 |
| JP2005185563A (en) | 2005-07-14 |
| TWM274925U (en) | 2005-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141220 Granted publication date: 20060830 |