CN1146375C - Absorbent articles having panty covering components that naturally wrap the sides of panties - Google Patents
Absorbent articles having panty covering components that naturally wrap the sides of panties Download PDFInfo
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- CN1146375C CN1146375C CNB941026205A CN94102620A CN1146375C CN 1146375 C CN1146375 C CN 1146375C CN B941026205 A CNB941026205 A CN B941026205A CN 94102620 A CN94102620 A CN 94102620A CN 1146375 C CN1146375 C CN 1146375C
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- main part
- covering members
- crimping
- panty
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Abstract
The invention relates to absorption products, e. g. sanitary napkins, tight pant pads or incontinence pads. More substantially speaking, the invention relates to absorption products such as sanitary napkins. The longitudinal edges of the invention are naturally curled into the sides of a tight pant of a user, and the invention is a substitution for traditional side-curving products.
Description
Technical field
The present invention relates to absorbent commodity for example sanitary towel, panty liner and incontinence pad.Specifically, the present invention relates to the sanitary towel of vertical side member, the limit that this vertical side member wraps up the panty of wearer naturally provides the alternative of traditional lateral plate.
Background technology
Absorbent commodity for example sanitary towel, panty liner and incontinence pad is the parts that typically are worn in the underwear crotch district, these parts be designed to can absorption and liquid hold-up and other from the ejection of the person and prevent health and clothes is made dirty.Sanitary towel a kind ofly is worn over an absorbent commodity in the panty by the women.Panty generally between two lower limbs of wearer, near the place of health perineum.Two kinds of sanitary towels that have and do not have a lateral plate (or side) openly in the literature and available on market, respectively on April 23rd, 1991 with grant August 21 nineteen ninety in the United States Patent (USP) 5009653 and 4950264 of Osborn and narrated some sanitary towels good especially, that do not need sheet.
Generally, when sanitary towel had sheet, this sheet was laterally extended by the center absorbing component and wraps on two lower limbs in panty crotch district of wearer, and this sheet is placed between the thigh of two lower limbs in panty crotch district of wearer and wearer like this.Generally, this sheet has connector, is used for or that sheet is fixed to the panty of wearer is following or be fixed to relative sheet, and this sheet is for preventing that make dirty the two legs of panty of wearer of effluent from being effective especially.
The sanitary towel that has various types of matrix is disclosed in the United States Patent (USP) 4687478 that the name of granting VanTilburg on August 18th, 1987 is called " sanitary towel with sheet "; Granted the United States Patent (USP) 4608047 of Mattingly " sanitary towel's connector " by name on August 26th, 1986; Granted on May 20th, 1986 Vantilburg by name " sanitary towel " United States Patent (USP) 4589876 and granted the reexamination patent B14589876 of reexamination certificate on April 27th, 1993; Granted the United States Patent (USP) 4285343 of McNair " sanitary towel " by name on August 25th, 1981; Grant the United States Patent (USP) 3397697 that is called " the tractable sanitary towel that is used for underwear " of Rickard August 20 nineteen sixty-eight and grant the United States Patent (USP) 2787271 of Clark " sanitary towel " by name April 2 nineteen fifty-seven.
And the sanitary towel that has a sheet compares with no sheet sanitary towel and has been counted as providing the protective measure that better bears dirty.Some women find to use the sanitary towel that has sheet because a variety of causes is inconvenient.For example some women's discoveries are the bottom that sheet is connected to their panty crotch difficult.This possibility is owing to some factors cause, for example try hard to the viscosity fixture on the sheet is adhered on the other parts of their own or sanitary towels, some women still prefer not having sheet sanitary towel as a result, and some women that generally like having sheet sanitary towel once in a while (as, during stream few) also like not having sheet sanitary towel.Therefore, be necessary to provide an alternative with sanitary towel of traditional lateral plate.The lateral plate protection still is provided simultaneously.
In addition, there are sheet and two kinds of sanitary towels of no sheet to occur in the interior table problem mobile of wearer during the wearing along with moving of wearer.These stress can cause that sanitary towel moves from its ideal position the underwear of wearer.Yet a lot of sanitary towels do not provide and regulate these mechanisms that move.This just is applied to stress on sanitary towel and the sheet.Provide with the sanitary towel of a mechanism so as to regulate between the underwear of wearer and the wearer's body move inharmonious, its weak point is that moving of wearer reaches and the underwear of wearer adapts because of this sanitary towel can not extend and be adapted to, may be so uncomfortable.
Disclose some modification of the sanitary towel with traditional sheet in patent documentation, these modification are attempted to solve some problems but are not all addressed these problems.The United States Patent (USP) 4911701 of for example granting Mavinkurve discloses a sanitary towel with elastic cord, and elastic cord wherein is used for one higher convex being provided and being used to make a free bonding position with the sheet of lateral towel to be attached in the panty to uptake zone, center in the face of health.Yet needing still occurring user to operate this sheet (by also this sheet being turned back at first upwards stirring this sheet and then sheet being placed on like her panty) downwards in the sanitary towel described in this patent, is to be placed in advance downwards to fold because this sheet be it seems.The patent of Mavinkrure also needs special elastic cord to be connected to the uptake zone, center of towel under the condition of tightening up and/or is connected on its two sides or sheet.Towel described in the patent of Marvinkruve therefore may manufacture be difficulty with costliness.The patent of Marvinkruve does not also disclose the device of uptake zone, center elongation of the panty of inharmonious and towel that any consideration moves and wearer.
The United States Patent (USP) 4940462 of granting Salerno discloses vertically extensible sanitary towel of a band.This sheet is designed to fold to the outside of the panty of wearer, launches then to meet with the profile phase of panty.Yet the patent of Salerno (in hurdle 5) needs traditional viscosity fixture, with should have in the position in the panty bottom that this sheet is remained on wearer.In the sanitary towel shown in the patent of Salerno some shortcomings are arranged in addition, this is because vertical extensible direct practical situation that is extended outwardly by vertical side of absorbing component.In the Salerno patent extensible be fixed directly to one can not ennation on.This has just limited the elongation that is positioned near the Salerno sheet part of absorbing component.In order to make the Salerno sheet be extended an amount that is enough to wrap on the panty, this sheet must have the lateral dimension of a broad, this is illustrated among Fig. 3 and Fig. 4 of Salevno description, fixedly sheet component can outwards exceed the panty elastic cord extend far, with produce one stretch out wearer panty drench the limit.
Other shortcoming that chip architecture has been shown in Mavinkurve and Salerno two people's description is, on the longitudinal side that deployable is directly connected to absorbing component, this causes any compression of absorbing component will cause that sheet inwardly laterally shrinks.Hold together (for example, the compression of the person's of being worn two lower limbs causes) at any collection of the absorbing component of the sanitary towel shown in these description and caused that sheet reduces the ability of the given area of the panty that their hide wearer.This Salerno patent does not disclose any consideration yet and moves the structure that extend the center of the panty of inharmonious and towel and wearer as the Mavinkurve patent.
Like this, need a kind of absorbent commodity such as sanitary towel, it has the alternative of a traditional sheet, especially need a kind of sanitary towel with a traditional sheet alternative, this sanitary towel provides and has prevented drenching and can making things convenient for and solve the problem that causes effectively and solve sanitary towel with traditional sheet existing problem when it extends panty with the health that is adapted to wearer and wearer when attempt is fixed to traditional sheet the downside of panty of wearer of traditional sheet.
Summary of the invention
Therefore an object of the present invention is to provide an absorbent commodity, a sanitary towel for example, it can provide covering to pollute (crotch of the panty of promptly making dirty) and do not use traditional sheet to reduce sidepiece the panty of wearer.
Another object of the present invention provides an absorbent commodity, a sanitary towel for example, and it upwards draws the simple motion of her panty automatically to wrap on the limit of panty of wearer by wearer.
Another object of the present invention provides an absorbent commodity, for example a sanitary towel.It can wrap on the limit of panty of wearer and fix, and does not need to provide the sheet that the panty fixture is arranged thereon and need not independent elastic cord be fixed in the sanitary towel.
Another object of the present invention provides an absorbent commodity, as a sanitary towel, it has a sanitary towel to be fixed to structure on the panty of wearer, this structural stretch is consistent with the health of wearer and the panty of wearer, and moving along with wearer, make between the health of sanitary towel and wearer, and can effectively good form between the panty of sanitary towel and wearer.
The present invention also has another purpose to provide an absorbing articles, thin absorbent commodity especially, and a sanitary towel for example, it can extend or be easy to act as most when wearing these article elongation to be used to improving comfortable and to cooperate.
These and other objects of the present invention when in conjunction with the accompanying drawings and with reference to below narration will become more obvious very soon when considering.
According to an aspect of the present invention, a kind of absorbent commodity that wears in the crotch portion of undergarment district is provided, this absorbent commodity have in a longitudinal direction longitudinal size and lateral dimension in a lateral direction,, a longitudinal centre line, with a cross central line, this absorbent commodity comprises: have the main part of absorbent cores, this main part has a side towards health, towards a side and a pair of vertical side of the edge of clothes; And underwear covering members, this underwear covering members is connected in fixed point with the side towards clothes of described main part in the inboard of described main part vertical side of the edge, and be not connected with this main part in the lateral outer side to the described fixing point of small part, described underwear covering members comprises an offside crimping, this side crimping is folding around the side in crotch portion of undergarment district, this side crimping laterally stretch out exceed described main part vertical side of the edge one segment distance to terminal edge, this distance is less than a half width of described main part, wherein when described side crimping when the side of crotch portion of undergarment is folding, the part of described at least underwear covering members is extendible between the terminal edge of described fixing point and described side crimping, at least a portion of each described side crimping restrains under the effect of-1500 any power that restrain the amount of the 5%-50% that can stretch 50 between the terminal edge of described fixing point and described side crimping; Described extendable portion has and is greater than or equal to 10% deformation; The described extendable portion of described underwear covering members has the restoring force that is less than or equal to 100 grams; The described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 90 °; And the resistance of described side crimping opposite side compression is and is greater than or equal to 5 grams.
According to another aspect of the present invention, a kind of absorbent commodity is provided, have in a longitudinal direction longitudinal size and lateral dimension in a lateral direction,, a longitudinal centre line, with a cross central line, this absorbent commodity comprises: have the main part of absorbent cores, this main part has a side towards health, towards a side and a pair of vertical side of the edge of clothes; And underwear covering members, this underwear covering members is connected with the side towards clothes of this main part with separator between the described main part at this underwear covering members by one, this separator is connected with described main part at a pair of junction point place, and between this is to junction point, be not connected with this main part, this junction point is positioned in the vertical side of the edge of described main part, thereby what define described main part can be from the out of gear mesh disconnected zone of described underwear covering members, described underwear covering members comprises an offside crimping, this side crimping laterally stretch out exceed described main part vertical side of the edge one segment distance to terminal edge, this distance is less than a half width of described main part, at least a portion of wherein said underwear covering members is extendible between the terminal edge of described junction point and described side crimping, at least a portion of each described side crimping restrains under the effect of-1500 any power that restrain the amount of the 5%-10% that can stretch 50 between the terminal edge of described fixing point and described side crimping; Described extendable portion has and is greater than or equal to 10% deformation; The described extendable portion of described underwear covering members has the restoring force that is less than or equal to 100 grams; The described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 90 °; And the resistance of described side crimping opposite side compression is and is greater than or equal to 5 grams.
According to also aspect of the present invention, a kind of absorbent commodity is provided, this absorbent commodity have in a longitudinal direction longitudinal size and lateral dimension in a lateral direction,, a longitudinal centre line, with a cross central line, this absorbent commodity comprises: have the main part of absorbent cores, this main part has a side towards health, towards a side and a pair of vertical side of the edge of clothes; And underwear covering members, this underwear covering members is connected in fixed point with the side towards clothes of described main part in the inboard of described main part vertical side of the edge, and be not connected with this main part in the lateral outer side to the described fixing point of small part, described underwear covering members comprises an offside crimping, this side crimping laterally stretch out exceed described main part vertical side of the edge one segment distance to terminal edge, this distance is less than a half width of described main part, but wherein said underwear covering members has a periphery and comprises four stretched portion between the terminal edge of described fixing point and described side crimping, at least a portion of each described side crimping restrains under the effect of-1500 any power that restrain the amount of the 5%-10% that can stretch 50 between the terminal edge of described fixing point and described side crimping; Described extendable portion has and is greater than or equal to 10% deformation; The described extendable portion of described underwear covering members has the restoring force that is less than or equal to 100 grams; The described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 90 °; And the resistance of described side crimping opposite side compression is and is greater than or equal to 5 grams; When described absorbent commodity worn in described underwear and from above when watching downwards, intersect four positions by described four stretchable parts the crotch portion marginal portion of the periphery of described underwear covering members and described underwear.
According to a further aspect of the invention, a kind of absorbent commodity is provided, have in a longitudinal direction longitudinal size and lateral dimension in a lateral direction,, a longitudinal centre line, with a cross central line, this absorbent commodity comprises: have the main part of absorbent cores, this main part has a side towards health, towards a side and a pair of vertical side of the edge of clothes; And oval-shaped underwear covering members, this underwear covering members is connected in fixed point with the side towards clothes of described main part in the inboard of described main part vertical side of the edge, and be not connected with this main part in the lateral outer side to the described fixing point of small part, described underwear covering members is an independent member, this component limit one offside crimping, this side crimping laterally stretch out exceed described main part vertical side of the edge one segment distance to terminal edge, this distance is less than a half width of described main part, at least a portion of wherein said underwear covering members is stretchable between the terminal edge of described fixing point and described side crimping, at least a portion of each described side crimping restrains under the effect of-1500 any power that restrain the amount of the 5%-10% that can stretch 50 between the terminal edge of described fixing point and described side crimping; Described extendable portion has and is greater than or equal to 10% deformation; The described extendable portion of described underwear covering members has the restoring force that is less than or equal to 100 grams; The described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 90 °; And the resistance of described side crimping opposite side compression is and is greater than or equal to 5 grams.
According to a further aspect of the invention, a kind of absorbent commodity is provided, have in a longitudinal direction longitudinal size and lateral dimension in a lateral direction,, a longitudinal centre line, with a cross central line, this absorbent commodity comprises: have the main part of absorbent cores, this main part has a side towards health, towards a side and a pair of vertical side of the edge of clothes; And underwear covering members, this underwear covering members is connected in fixed point with the side towards clothes of described main part in the inboard of described main part vertical side of the edge, and be not connected with this main part in the lateral outer side to the described fixing point of small part, described underwear covering members has a side towards clothes relative with described main part, the clothes covering members comprises an offside crimping in described, this side crimping laterally stretch out exceed described main part vertical side of the edge one segment distance to terminal edge, this distance is less than a half width of described main part, at least a portion of wherein said underwear covering members is stretchable between the terminal edge of described fixing point and described side crimping, at least a portion of each described side crimping restrains under the effect of-1500 any power that restrain the amount of the 5%-10% that can stretch 50 between the terminal edge of described fixing point and described side crimping; Described extendable portion has and is greater than or equal to 10% deformation; The described extendable portion of described underwear covering members has the restoring force that is less than or equal to 100 grams; The described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 90 °; And the resistance of described side crimping opposite side compression is and is greater than or equal to 5 grams; Described side crimping can be inwardly folding on the specific part of described underwear covering members respectively, and a whole side towards clothes of described underwear covering members covers at the securing member that is all constituted by bonding agent except two vertical adhesive-free zones.
The invention provides an absorbent commodity, a sanitary towel for example, there is a underwear covering members (or " panty covering members ") in sanitary towel of the present invention, this underwear covering members provides covering not use traditional sheet to reduce sidepiece to pollute (that is the contamination of two lower limbs of close-fitting underpants crotch) to the panty of wearer.
Sanitary towel comprises by a sepage last slice, a liquid-impermeable egative film that is connected to slice, and one be placed on slice and egative film between the main part formed of absorbent core.Underwear covering members (or panty covering members) is connected on the main part, and the underwear covering members is looseer than the crotch area of underwear.That the underwear covering members has is a pair of weak point, soft, (can become pleat in certain embodiments) longitudinal side part (or " side crimping "), and it exceeds the crotch shank branch of the underwear of wearer, and the side crimping has a high folding fastness.The underwear covering members comprises the extendable portion (power tend to cause extendable portion withdraw) that some are applied in low recuperability or do not have recuperability at least after they are extended.Extendable portion preferably comprises the part of underwear covering members at least, and this part is linked between the distal edge of fixing point on the main part and side crimping at the underwear covering members.The fact that extendable portion is applied in a low recuperability and side crimping and has a high folding fastness makes the side crimping of underwear covering members can be automatically folding and be placed in the underwear and the health of the close wearer of underwear can maintain when upwards being drawn so folding when absorbent commodity towards the downside of underwear around the crotch two shank branches of the underwear of wearer.
The extendable portion of underwear covering members comprises the extensible structure of any kind, such as can comprise material with intrinsic percentage elongation and be retracted, pleating material or with the extensible structure of other method formation.These parts in the vertical, transversely or can be extendible on both directions.The underwear covering members can be made up of the layered article of one or more non-woven materials and an elastomer film, in the replacement form of this layered article embodiment, elastomer film can exist in the whole places except that four districts of the layered article of the intersection, limit of the panty crotch of the periphery of underwear covering members and wearer.In another embodiment, the underwear covering members can be extendible in these four districts only, can not extend Anywhere at other.
Here narrated the non-limiting number of the another kind of modification of underwear covering members.For example the underwear covering members can comprise the egative film of sanitary towel.Sanitary towel comprises a underwear covering members In yet another embodiment, and this underwear covering members is on the bonding pad that keeps apart is fixed to a separation member on sanitary towel's main body.The underwear covering members be not connected between the bonding pad with main part, so that the disconnected part of underwear covering members to be provided in the main part center.The disconnected part of underwear covering members is can be isolating with main part, so that even during having on, when panty was pulled away from the health of wearer, the main part of sanitary towel can keep can keeping being connected with the panty of wearer with the underwear covering members with the Body contact of wearer.
In these the following examples, the cured lax parts of making that help of underwear covering members can be connected on the main part of sanitary towel.Should can make by soft parts, pleating parts, extensible parts or analog are provided between main part and underwear covering members by lax parts.May also have many other modification.Sanitary towel for example of the present invention can comprise a main part, and this main part has on inwardly folding limit, longitudinal side and this limit, longitudinal side of main part bottom of sanitary towel and is fixed on the outward extending extendible panty covering members in the limit, longitudinal side that exceeds main part.In another embodiment, sanitary towel comprise an extendible main part (it comprise one extensible last slice, it is fixed on the extendible egative film of a longitudinal edge that exceeds absorbent cores).
Owing to some reasons, sanitary towel of the present invention provides the alternative with traditional lateral plate sanitary towel, and the underwear covering members does not extend outwardly into the side of the panty that exceeds wearer, causes any inconvenience of wearer.The underwear covering members need not have active force on the part of wearer, so that be fixed on her panty at the following folded sides crimping of her panty or the side crimping, the underwear covering members rests on the side that the panty that has well hidden wearer on the position should be arranged and need not be fixed to it on the outer surface of panty.
Description of drawings
And this description comprises the content of claim, and claim particularly points out and knows and proposed to be considered to constitute theme of the present invention, believes that the present invention will become clearer from the narration below in conjunction with accompanying drawing.
Fig. 1 is the top plan view of the preferred embodiment of sanitary towel of the present invention,
Fig. 2 is the constructed profile of cutting open along the 2-2 line of sanitary towel shown in Figure 1,
Fig. 3 is the side view before sanitary towel shown in Figure 1 uses,
Fig. 4 is the side view of profile sanitary towel shown in Figure 1 (observing from the angle of the sanitary towel that is similar to Fig. 3) uses,
Fig. 5 is the end-view of profile during sanitary towel shown in Figure 1 uses,
Fig. 6 is the top plan view that shows sanitary towel's main part elongation situation shown in Figure 1,
Fig. 7 is a table, and it shows the best relation between the amount that the size that is applied to the extending force in the sanitary towel and sanitary towel extend with these power,
Fig. 8 is the plane graph that is provided with the absorbent cores of seam in same center,
Fig. 9 and 9A are the simplification end-views with known sanitary towel of vertical extensible, and Fig. 9 A and other the figure that represent with letter " A " are absorbing component pressurized end-views (for simplicity, these figure do not illustrate the sheet that wraps up around the crotch of underwear) afterwards,
Figure 10 is the end-view that shows some basic embodiment of sanitary towel of the present invention various characteristics up to 15C,
Figure 16 is a simplified, schematic, side elevation view of measuring the used operation of anti-limit compressibility of side crimping,
Figure 17-the 20th, the plan view of sanitary towel with replacement structure of some syndetons, this syndeton is used for the panty covering members partly is connected to sanitary towel's main part,
Figure 21 is the flat sheet of the bottom view of panty cover, and this smallclothes covering members part has the keeper of radially-arranged hook formation on the part at it shown in the place of panty crotch part,
Figure 22 is the perspective view that has the panty part of sanitary towel of the present invention at this position,
Figure 23 is the plane graph that panty of the present invention hides the alternative embodiment of part,
Figure 24 has the top plan view that a panty hides the sanitary towel of part, and it generally is inextensible except that its corner regions that this panty hides part,
Figure 25 is the constructed profile of a sanitary towel, and the longitudinal side edge contraction of this sanitary towel is following and be fixed on the panty in its main part,
The simplified schematic profile of the sanitary towel that Figure 26 is made up of extendable portion, the figure mediella is an extendible material, it extends outwardly and exceeds outside top flat and the absorbent cores, so that as the covering part of panty,
Figure 27 is illustrated in the curve that has stood extensible component family afterwards of several stretching cycles,
Figure 28 is the curve that shows the limit compression of extensible parts,
The specific embodiment
1, the general characteristic of absorbent commodity
The total characteristic of absorbent commodity of the present invention at first will be discussed.
Fig. 1-5 shows the preferred embodiment of tractable absorbent commodity 20 of the present invention, the present invention relates to for example sanitary towel of absorbent commodity, more particularly, the present invention relates to the sanitary towel an of main part 21 (or " basic sanitary towel " or " basic sanitary towel "), main part 21 comprises that no underwear hides the sanitary towel's part and a underwear covering members 100 (" clothes covering part " or " panty covering part ") of part, underwear covering members 100 preferably is placed in when upwards drawing her panty in the panty that on the panty of wearer and for wearer sanitary towel is placed on her, can automatically wrap on the limit of panty of wearer.
Refer to the article that absorb and store the human body effluent as term used herein " absorbent commodity ", especially this term refers to and is pasting or getting close to that wearer's body is placed so that absorb and store the article of the various effluents of discharging from health, term " absorbent commodity " refers to and comprises sanitary towel, panty pad and incontinence pad (and be worn in the crotch area of underwear other article), term " is easily handled " to refer to and is once being used and preferably reusing, thrown away after the compound use, perhaps with the other article of handling of the suitable mode of a kind of environment, (promptly, they are defined as and do not wash or do not restored in addition or re-used as an absorbent commodity), in described most preferred embodiment, this absorbent commodity is a sanitary towel that represents with 20.
Refer to the article of being worn near the pudendum district by the women as term used herein " sanitary towel ", it (for example is used for absorbing and stores the various effluents of discharging from health, blood, menstruation and urine), yet should be appreciated that the present invention also may be used on other women's personal hygiene or the menopad, for example panty liner or other absorbing articles are for example on incontinence pad and the analog.
There are two surfaces in sanitary towel 20, the underwear surface 20B of the body contacting surface of a sepage or " body surface " 20A and a liquid-impermeable.Sanitary towel 20 shown in Figure 1 is observed from the direction of its body surface 20A.This body surface 20A stipulates that the health of wearer wears.The surperficial 20B of the underwear of sanitary towel 20 (shown in Figure 2) is at opposite side and stipulates to press close to the underwear placement of wearer when wearing sanitary towel 20.
There are two centrages in sanitary towel 20, a longitudinal centre line L and a transverse centerline.Refer to a line, axle or along sanitary towel's 20 planar directions as terminology used here " vertically ", sanitary towel 20 generally aims at (for example being roughly parallel to) vertical plane, this vertical plane is divided equally into left half body and right half body with a wearer of standing when wearing sanitary towel 20, and terminology used here " laterally " or " side direction " are removable and refer to line, an axle or be arranged in sanitary towel 20 planes, common orientation perpendicular to longitudinal direction.
The main part 21 that has gone out sanitary towel 20 shown in Figure 1 has two isolated vertical limits 22, two isolated laterally or end limit (or " end ") 24, and four angles 27, and they form the week 26 of sanitary towel's 20 main parts together.Main part also has two petiolareas, and they are marked by first petiolarea 28 and second petiolarea 30.Center 32 is arranged between petiolarea 28 and 30.Petiolarea 28 and 30 both sides 1/8 to about 1/3 of the about main part length that extends outwardly by center 32.JIUYUE in 1987 was granted the detailed description that has comprised center 32 and two petiolareas 28 in the United States Patent (USP) 4690680 of Higgins on the 1st.
Sanitary towel 20 (or its main part) can comprise thicker, thin or even extremely thin arbitrary thickness.In the embodiment of the sanitary towel 20 shown in Fig. 1-3 of accompanying drawing regulation is thin sanitary towel, the embodiment of one " ultra-thin " sanitary towel preferably.Yet should be appreciated that, when seeing these figure, shown in the number of plies of material cause sanitary towel 20 to look than thick many of its actual thickness.A kind of " ultra-thin " sanitary towel 20 is as the United States Patent (USP) 4950264 of granting Osborn and the same thickness that preferably has less than about 3 millimeters paper described in 5009653, and shown thin sanitary towel 20 is also preferably softer, makes wearer feel that it is comfortable.
Fig. 2 shows the independent member of the main part 21 of sanitary towel 20 of the present invention.Main part 21 shown in Figure 2 generally comprises at least three major parts, and they are infiltration last slice 38, one liquid-impermeable egative film 40 (or " barrier layer structure "), and a absorbent cores 42 between last 38 and egative film 40.Yet the one or more for example egative films in these parts can be replaced by a following part as underwear covering members part sometimes.The main part 21 of sanitary towel 20 can comprise prevailing, and the result is normally inextensible.Yet in a preferred embodiment, the main part of sanitary towel is to be 07/9 with people's such as Osborn name in two Application No. of application on July 23rd, 1992, in described in 5133 and 07/915284 these one (the PCT publication number is that W093/01785 and 93,/01,786 two are disclosed on February 4th, 1993), these main parts comprise one or more extensible.Preferably main part 21 is all formed by extensible, and sanitary towel has an overall elongated rate.
Show the elongation situation of sanitary towel's 20 main parts 21 with the reduced form among Fig. 6.Refer on X-Y plane article that can increase in their sizes at least as employed term " extendible " here.X-Y plane is a plane that is parallel to the face of sanitary towel 20 usually.The main part 21 of the sanitary towel 20 shown in Fig. 6 is preferably on length and width two directions extensible.Yet the main part 21 of sanitary towel 20 in other embodiments is only extensible on the direction in these directions.The main part of sanitary towel 20 preferably is extendible at least in a longitudinal direction.
The main part 21 of sanitary towel 20 may also can be elongated except that extensible in some preferred embodiments, as subject used herein " can elongate " refer to when article are applied pulling force extendible and present the article of some anti-drawing property.The main part 21 of sanitary towel 20 also preferably may be that elasticity is tractile, term " elasticity is tractile " or " elasticity is extendible " are defined as synonym, refer to when removing when elongating as employed these terms here, main part will attempt to withdraw towards its not extension or not extended direction (or " original " size).Yet, the size when main part 21 needn't be withdrawn into not elongating of it always.It can resemble relaxes size (for example LR and WR) between (or elongating size) LS that does not elongate size and elongation that is withdrawn into it shown in Fig. 6 and the WS.Make main part 21 can elastic elongation when trying hard to will to reduce the bad trend that main part is vertically assembled (protuberance longitudinally) inwardly when the extended power of sanitary towel removed.This point is desirable especially when the panty of wearer purses up.
The extensible scope of the main part of sanitary towel is preferably in the value described in PCT publication number WO93/01785 and the WO93/01786.For summarizing above-mentioned value, in a panty, wear under the effect of the power that sanitary towel produces, the elongation of main part can about 5% and less than 50% between, be preferably between about 10% and 40%, best between about 25% and about 40%.Main part preferably can be extended under the effect of the power between about 250 grams and about 800 grams like this in the effect of the power between about 50-100 gram and the about 1000-1500 gram.Fig. 7 is a table of having stipulated the applied force scope of following preferable absorbent commodity percentage elongation.Should be appreciated that here all limit of regulation and the limit that scope is included in regulation and whole narrower range limit and the numerical value in the scope.As shown in Figure 7, provide one " wall of power " so that preventing to elongate surpasses certain value also can for the main part of sanitary towel, be applied to the not obvious increase of power on the main part.If an extendable portion is provided for the panty covering members, it is fixed to the panty crotch place of wearer, this panty cover piece preferably also has the wall of a power, so that replace sanitary towel easily from the panty of wearer.
The extendable portion of panty covering members as the part of the sanitary towel that comprises main part in similar value and respective class like being extendible under the situation of power.Yet any self elasticity in the extendable portion of panty covering members (that is, extendable portion is got back to any inclination angle on its original size) is normally lower.(independent here elastic webbing is elongated and is fixed on the panty covering members that is under the extensible condition) of extendable portion also preferably extendible rather than or elastic force thread with elasticity.The extendable portion of these panty covering members have bigger " distortion " (with the value shown in Fig. 7 relatively) an and low retraction force, they will wrap up around the both sides of the panty of wearer rather than by the both sides disengagement of close-fitting underpants like this.
2, single ingredient of each of sanitary towel and their assembly
The description that 1-3 is more detailed with reference to the accompanying drawings now can be suitable for the single ingredient of each embodiment of sanitary towel 20 of the present invention.
Last of A
(similar numbering rule is applied on other ingredient of sanitary towel, that side of promptly facing the ingredient of wearer's body can be marked with the number and a reference letter " A " of ingredient; That side of facing the wearer underwear can be marked with the number and the letter " B " of ingredient, and limit and end limit can be marked with number and reference letter " C " and " D " of ingredient respectively).
A kind of suitable last slice 38 can be by the material manufacture of a wide region, these materials include but not limited to weaving loom and non-woven material, the hole shape thermoplastic film, apertured plastic films, hydroforming thin film, porous foam, reticulated polymer foam, reticulated polymer foam, netted ardent hope thin film and thermoplasticity scrim fabric.Suitable weaving and non-woven material can comprise natural fiber (for example timber or cotton fiber), synthetic or modified fibre (for example polymer fiber such as polyester, polypropylene fibre, with polyethylene or polyvinyl alcohol, starch-based resin, polyurethane, cellulose esters, nylon and staple fibre) or come from natural and compositionss synthetic fibers.38 comprise a nonwoven nethike embrane elbow when last slice, this nethike embrane may be spunbond, and combing, wet-laying, molten that blow, hydraulic pressure tangles above-mentioned compositions or analog.
Usually select for use hole film to make last slice 38 because their permeation liquids, and if hole suitable, liquid is returned and the probability of rewetting wearer skin reduces.Granted the United States Patent (USP) 3929135 of Thompson on the 30th at December in 1975, grant people's such as Mullane United States Patent (USP) 4324426 April 13 nineteen eighty-two, grant the United States Patent (USP) 4342314 of Radel August 3 nineteen eighty-two, granted people's such as Ahr United States Patent (USP) 4463045 on July 31st, 1984 and granted on April 9th, 1991 in the United States Patent (USP) 5006394 of Baird and described suitable hole film, according to the United States Patent (USP) 4342314 of granting Radel and the United States Patent (USP) 4463045 of granting people such as Ahr can make a kind of specially suitable last slice 38, now find the Haute by TredegarCorporation of Terre, the model that Indiana sells is that X-3265 or model are that last slice 38 work of hole shape thin film fabrication of P1552 are good.
By carry out a kind of mechanically actuated for example pleating on last sheet material, be processed into ripple or ring grain roll-in and can 38 make extendiblely last slice so that form pleat on last, when last slice tension, these folds can be opened.A kind of like this method can adopt on the sheet material on above-mentioned a lot.In a preferred embodiment of the present invention, last slice 38 make and carry out the ring grain roll-in providing extensibility to it according to United States Patent (USP) 4463045, narrated in the U.S. Patent application 07/936195 of " the polymerization nethike embrane " by name of application on August 25th, 1992 with people's such as John J.Curro name with deformed sections that actual increase nethike embrane elasticity A is provided a kind of so last slice.
The appropriate method of ring grain roll-in or " corrugating in advance " is granted the United States Patent (USP) 4107364 of Sisson on August 15th, 1978, granted the United States Patent (USP) 4834741 of Sabee and on February 28th, 1991 on May 30th, 1989 by continue application of people such as Gerald M.Weber, the common U.S. Patent application of transferring the possession of 07/662531, on February 28th, 1991 is by the U.S. Patent application 07/662537 of people such as Kennethb.Buell application and did in the U.S. Patent application 07/662543 by people such as Gerald M.Weber application on February 28th, 1991 and described (in general, being called " ring grain roll-in " patent application here).
Fold line in the wrinkle of ring grain roll-in last slice should extend in the horizontal, is extendible on going up slice vertically like this.In other embodiments, the fold line can be in the vertical, on two kinds of directions and/or extend on other direction.Last slice 38 will on direction, be extendible perpendicular to the fold line.
In a preferred embodiment, last slice 38 show hydrophilic so that liquid 38 is carried by last slice quickly.To reduce body exudates outflow last slice like this rather than be absorbed this of wicking receipts through last slice may.By it can present hydrophilic with surfactant processing last slice.The appropriate method of application surface activator is described in the United States Patent (USP) 4950254 and 5009653 of granting Osbrn.
In addition, in a preferred embodiment, the contact relation of the inner surface 38B of assurance last slice 38 and following absorbed layer.This contact relation causes liquid to be penetrated into faster in slices 38.Go up on this slices 38 contact relations that can keep with following surface layer by adhering to following layer to last slice.Yet with last slice 38 face adhere to down surface layer and on be not indispensable.By use between last and the lower piece binding agent, by surface layer under the handle fiber and last slice be wrapped with, by many discontinuous single fusings bonding last slice 38 be fused to below on the absorbed layer or by any technical known mode, can make slices 38 to keep in touch with following absorbing component.
The B absorbent cores
The polymerization colloid of listing in above may also be referred to as " absorption glue material " or " high density absorbing material ".When contacting, absorb these liquid and form the material of hydrogel thereby the polymerization colloid is those with liquid such as water or other body fluid.In this mode, the liquid that enters in the absorbent cores 42 can be obtained and be aggregated the colloid preservation firmly, thereby the article that provide here have the performance that improves absorbability and/or improve liquid hold-up.That the polymerization colloid that uses in absorbent cores 42 generally will comprise will be undissolved water, that a cross linkage is arranged, part is neutral, constitute the microgranule 41 of aquogel polymer material, and this polymerization colloid can exist with the various ways of ball, sheet or fiber.
In preferred embodiment shown in Figure 2, absorbent cores 42 is lamellated.This layered article comprises one deck high density absorbing polymeric material, for example with respectively two inflation fabric-first and second tissue layer 43 and 47 (or " on " and the D score tissue layer) between the material of form appearance of the microgranule 41 placed.First and second tissue layer 43 and 47 provide the volume of high density absorbing polymeric material, have improved by absorbent cores 42 to absorb the transverse defect of effluent and a trap is provided.Tissue layer 43 and 47 can be made up of a single fabric nethike embrane, and this fabric nethike embrane is surrounded by super suction particles of material, or is made up of same (or different) piece of cloth that separates.
A kind of suitable layered article be a kind of can Muscatine, the corn processing company of Iowa obtains is called the super layered article (it is TM that sluice is handled register of company by corn) of inhaling of sluice L-535.This super absorbed layer goods are granted people such as Pedersen on August 21st, 1984 United States Patent (USP) was granted people's such as Lind-say United States Patent (USP) 4260443 April 7 in 4467012,1981 and was granted on March 25th, 1986 in people's such as Kramer the United States Patent (USP) 4578068 and is described.By to above-mentioned material cutting or joint-cutting, can make layered article absorbent cores 42 extendible.Fig. 8 shows as mentioned above a layered article absorbent cores 42, and it is by joint-cutting or part joint-cutting, so that can carry out longitudinal extension.
In another embodiment, inhale core by fabric layered article made of paper and have elongation range between 20% and 200% (can extend to one between about 1.2 and 3 times of size when being it does not extend and extend size).Such piece of cloth can be made by the operation of some.In one embodiment fabric for example paper can be can be a kind of beneficence (BounTY) tissue paper by the tissue paper that usual method is wrinkled, it is left the Yankee drying machine after wrinkling and is directly obtained before will removing with the crape of this tissue paper manufacturing.The process of making this tissue is granted on March 24th, 1992 in people's such as SMurkoski the United States Patent (USP) 5098522 and is described.
In further embodiments, not or have the tissue paper of seldom original wrinkle after stacked, can be wrinkled.Wrinkling process in this case makes layered article pass through two to cooperate roll-ins to take place, make them become the ripple layered article tissue paper with 20% to 200% elongation like this.Ripple should be perpendicular to the direction of wanting to extend.In yet another embodiment, entire body is partly corrugated.
Forever seal and not split when the elongation (, any sealing all should keep sealing in the useful life of sanitary towel) round all of main part periphery.
Even absorbent cores 42 itself do not have elasticity it also can be made into elasticity extendible.By absorbent cores 42 is attached to an elasticity egative film or last slice on it can be made elasticity extendible so that absorbent cores 42 will be extended and shrink along with elasticity last slice or egative film.
The C egative film
Egative film 40 prevented to be absorbed be contained in absorbent cores 42 in effluent article such as panty, pyjamas and the underwear getting wet and contact sanitary towel 20.Egative film 40 is liquid-tight (as menstruation and/or urine), though other softish liquid-tight material also can use, egative film 40 is preferably made by slim material film.
Egative film 40 can by weaving or non-woven material, polymeric membrane for example polyethylene or polyacrylic thermoplastic film) or synthetic material (as a kind of non-woven material of filming) form.Egative film 40 preferably has the polyethylene film from about 0.012MM (0.5 mil) to about 0.051MM (2.0 mil) thickness, by Clopay Corporation of Cincinnati, the trade mark that ohio makes is that P18-0401 reaches by Tredegar Film Products of TerreHaute, and the trade mark that Indiana makes is that XP-39385 is typical polyethylene film.
Egative film 40 is preferably concavo-convex and/or rough, to provide as the cloth profile.Egative film 40 can allow evaporation with dehydration (being that egative film 40 can be given vent to anger) from absorbent cores 42 in addition.But still can stop effluent to see through egative film 40, also can use rinsable or biodegradable egative film, for example use panty pad described here, another suitable stock footage is to grant the nonwoven/film laminate described in the United States Patent (USP) 5007906 of Osborn on April 16th, 1991.
By carry out mechanically actuated for example pleating, corrugate or ring grain roll-in stock footage can be made egative film 40 extendible.Yet preferably by by (for example granting the such elastomer thin film of thin film described in the United States Patent (USP) 4476180 of Wnuk on October 9th, 1984 makes egative film 40 extendible.A kind of like this thin film can obtain from ExxonChemical Company of Lake Zurich, as doing internal layer with Exxon thin film Exx-500 (being Exx-7 in the past).
Another kind of good especially extendible egative film 40 is by Findley AdhesivesCompany of Wauwatosa, a kind of extendible adhesive membrane #198-338 that Wisconsin makes.The Findley adhesive membrane is a kind of liquid impervious film that can extend 200-300%.The Findley adhesive membrane is preferable, and is extendible because it still is an elasticity.At least one side of this thin film can bond in sanitary towel 20 in " former state " conduct.For example this side of adhesive film can adhere to facing on the garment side 42B of absorbent cores 42.The opposite side of adhesive film formed egative film 40 in the face of garment side 40B.It can have the tacky surfaces of topical application (or " forming block " is to slacken its viscosity) at least.Egative film equally also is blocky in the face of the stickum of bodyside 40A at least.The stickum that exposes is a plurality of bulks.These comprise but non-exclusively one deck cohesionless material are covered on the stickum that exposes and exposing at least and brush on the stickum part or spray dusty material for example Pulvis Talci or cereal starch.The stickum that egative film 40 exposes in the face of the bulk on the garment side 40B can be used for keeping exposing viscosity, so that form special bonding way, egative film is fixed on the panty covering members.
In yet another embodiment, can make adhesive membrane one side toughness one side inviscid.Suitable viscosity film with these characteristics is a combinative structure of being made up of the nonwoven synthetic rubber film with a paper matrix moulding stick, and the adhesive film #198-338 that for example has block film (for example H2301) can obtain from Findley Adhesives Company.This material was granted the United States Patent (USP) 5032120 of Freeland and was granted on August 6th, 1991 in the United States Patent (USP) 5037416 of Allen and done to further describe on July 16th, 1991.
In another preferred embodiment, egative film 40 can be made up of two-layer or multiwalled extendible layer structure.This layered article can be made up of some layers of different percentage elongation every layer of energy, for example egative film has the layered article that one deck Findley adhesive film is shaped with comprising, this Findley adhesive film covers one or both sides by an extendible nonwoven nethike embrane or by an extensible film.
D, last slice, the combination of egative film and core and they are assembled into the main body of sanitary towel
The main part 21 of sanitary towel 20 of the present invention can comprise slice, the various combination of egative film and absorbent cores.Main part 21 can all be formed by extensible as mentioned above.Main part can also by any other type extendible or inextensible last slice, egative film and absorbent cores form.These are described in PCT publication number WO93/01785 and 93/01786.
These parts of aforementioned body part (last slice, egative film and absorbent cores) can assemble by any suitable method.In the preferred embodiment shown in Fig. 1-3, these parts of main part are assembled into the structure of " sandwich ", the limit of top 38 and egative film 40 is stretched out exceed the limit of absorbent cores 42.Utilize prior art, preferably with last slice 38 and the periphery of egative film 40 be joined together partly.As shown in Figure 1, last slice 38 preferably 90 be fixed on the egative film 40 along first seam as seam.Seam 90 is preferably liquid-tight, and seam 90 can be formed by any common mode that uses for this purpose and technically, for example forms by bonding crimping or heat-sealing.
Refer to as the term of usefulness " joint " here and to finish configuration, promptly by this part directly being attached on that part and one directly is fixed on another part; By this part being attached on the middleware (or parts), middleware is attached to successively on that part again and indirectly this part is fixed on that part; One is whole with another part, promptly in fact one be the part of another part.
Form the fiber of these parts of sanitary towel or other structural member (for example by the fiber fusing of forming a part or jet to another part) by bonding, stitching, heat and/or engage pressure, dynamic power machine joint, ultrasonic bonding, mixing and entanglement, one is expressed on another part or by any known technically other method and can be bonded together each part of sanitary towel 20.The appropriate device that each part of sanitary towel is bonded together is described in the U.S. Patent application 07/944764 of people such as Cree JIUYUE in 1992 application on the 14th.When main part was made up of extendible each several part, these parts can engage together by any appropriate method that main part is extended.Egative film 40 comprises an extensile adhesive film in one embodiment.Core 42 is placed on the top of egative film 40.Then with last slice 38 tops that are placed on core 42.Last slice 38 the limit part that exceeds those cores 42 of stretching out is fixed on those egative films 40 with stickum round the periphery of sheet films.Found this structure fully to fix the ingredient of sanitary towel and the face of the adjacent elements that need not to interfix in addition.But, as mentioned above, the face of fixing some parts also usually is preferred.
The method of above-mentioned these parts of joint is preferably for the ease of manufacturing (other method in conjunction with condition also can be used).For example the present invention also comprises usually said " pipe " product.In these products, a saturating liquid cover material (as above sheet material) can wholely be wrapped round absorbent cores and egative film, then these parts is fixed together.In another kind is arranged, last slice can wrap and the core wrapped can be placed on and be fixed on the egative film around core.
E panty covering members
Fig. 1-5 shows a preferred embodiment of panty covering members.Before the characteristic of the sanitary towel that is shown specifically of check Fig. 1-5, the function of panty covering members by its primitive form, is discussed with reference to Fig. 9-15C.
Fig. 9 and 9A have vertically sanitary towel's simplified schematic end-view of extensible, as grant the sanitary towel described in the United States Patent (USP) 4940462 of Salerno.In the sanitary towel shown in the Salerno patent since vertically extensible directly stretch out and some shortcomings arranged from the longitudinal edge of absorbing component.Extensible of Salerno directly is attached on the main body that can not extend, and this has just limited the percentage elongation that is positioned near the Salerno sheet part of absorbing component.In order to make amount that is enough to encase the panty elastic cord of Salerno sheet elongation, especially when the panty crotch elongates, the lateral dimension that this sheet must have a broad.
Any horizontal compression inwardly that Fig. 9 A also shows Salerno sanitary towel absorption portion will cause that this sheet quilt is to lira.The ability (being that area coverage reduces) that can lead a given area of the panty that reduces sheet covering wearer like this also may also cause sheet and the empty person's of wearing panty to be thrown off.
Figure 10 shows the first basic embodiment of panty covering members of the present invention.Panty covering members 100 comprises side crimping 52, and it is from the extendible elongation in vertical limit of extensible sanitary towel.This elongation is the elongation of non-absorbing component preferably.Panty covering members (or its extendable portion) transversely, or is extendible on both directions in this respect as other embodiment of great majority described here in the vertical.When the panty that upwards draws on the wearer's body, panty causes this elongation along the elongation of the elastic cord part of lower limb.So that wrap in naturally on the limit that elastic cord is housed of panty crotch.
In this specific embodiment, the distal edge 53 of this elongation is preferably extended about 3/8 inch (about 1cm) to about 2 inches (about 5cm) from the limit of sanitary towel's absorbent cores.This extendible elongation can be made up of or they can comprise each part that is bonded into main part a part in these parts in the main part.In the concrete preferred form in this embodiment, viscosity fixture 45 can be attached to elongation in the face of on the limit on the garment side about 1/8 o'clock (3mm), so that during the person of being worn firmly moves, this elongation is maintained (though this in the ordinary course of things fixture does not need usually) in the position of panty crotch.
In the another kind of form of this embodiment, this elongation can provide a zone, and this zone is permanent elongation (zone of the trend of promptly will not withdrawing after the elongation) along any that part of elongation that will be arranged in panty degree of tightness zone.In another form, the part of elongation can be folded, receive and disturb or clamped and by sealing-in, to be more convenient for two lower limbs that elastic cord is housed of panty crotch are wrapped, Figure 26 shows the another kind of form of a kind of like this embodiment, wherein sanitary towel is extendible and egative film has extended beyond last slice and the limit of absorbent cores, forming extendible elongation.In this embodiment, all parts of sanitary towel preferably are extendible at least in the vertical.
Sanitary towel is that the extendible fact has solved some problems that relate to Salerno sanitary towel at least in part, even the side crimping is connected on the extensible body rather than the fact linked on the non-extensible body makes the side crimping also continue to wrap on the both sides of panty crotch when the panty crotch extends.
Should be appreciated that, " substantially " embodiment described here is some feature of being had at available panty covering members, these features are combined in becomes various multi-form (or omission) sanitary towel of the present invention, and they all are not the epistasis features in other words.
Figure 11 and 11A express in second basic embodiment the bottom of sanitary towel's main part 21 that panty covering members 100 of the present invention is connected to vertical side 22 inboards of main part.In other words the panty covering members be free of attachment to vertical side 22 of main part and the sanitary towel 20 between the attachment point Q main part 21 in the face of on the garment side.Embodiment shown in Figure 11 and the 11A allows panty covering members 100 to be elongated between the zone that the panty covering members is connected to some Q place on the main part and the panty elastic cord will cross the panty covering members.This just makes the panty covering members can meet and wrap the panty of wearer with the profile phase of the panty of wearer.
Figure 12 expresses in the 3rd basic embodiment and the panty covering members can be connected big distance to vertical side 22 the insides of the main part 21 of sanitary towel 20 with 12A, so that junction point is positioned at the zone of longitudinal centre line L.Embodiment shown in Figure 12 provides possible that the compression (the especially compression of absorbent cores) that reduces main part and the action of panty covering members 100 hinder mutually.The compression of core is to connect because panty covering members 100 keeps clear of the limit 22 of main part with the minimizing of the probability that the action of panty covering members 100 hinders mutually.This acts directly on the panty covering members with regard to having prevented any power that is applied on the core.Figure 12 expresses absorbent cores and is attached to inwards on the Q, and panty covering members 100 is connected on the main part at Q point place, rather than panty covering members 100 is linked to each other on whole width with main part.This is opposite with Fig. 9 A, and Fig. 9 A expresses how the sheet of Salerno sanitary towel will connect according to these inside power.
Now to some supplementary notes of work embodiment illustrated in fig. 12.At first, it is to be very important in the center of main part 32 this point that panty covering members 100 is connected to position on the garment side 21B of main part 21, (otherwise, if main part is asymmetric, then the surface of main part can enter between two lower limbs of wearer) because be the place that protuberance takes place main part 21 at first here.Center 32 protuberance (see figure 1)s are because when two lower limbs of wearer also together the time, this district is among the area in the narrowest gap between two lower limbs of the narrowest part of panty crotch and wearer, and the center of main part about 3 inches (7.6cm) to about 6 inches (15cm) are ideal especially.
What should mention is that relevant second content embodiment illustrated in fig. 12 is a such embodiment, and it preferably should provide certain rock-steady structure so that prevent main part 21 relative panty covering members 100 inclinations and curling to longitudinal centre line of sanitary towel 20.
Should mention that to be the function that belongs to the side crimping about the 3rd content embodiment illustrated in fig. 12 different with the function of the sheet of known sanitary towel is the sort of.For example known sanitary towel has by various types of to the vertical internal fixation of absorbing component.For example grant the United States Patent (USP) 4589876 and these sheets described in the United States Patent (USP) 4900320 of granting McCoy of VanTlburg.This difference is obvious especially with regard to the sheet of the sanitary towel described in the McCoy patent.Two of sanitary towel sheets are to be used for surrounding the panty crotch fully and interfixing described in the McCoy patent, and two sheet attempts of McCoy sanitary towel are inwardly received the panty crotch and disturbed.And the side crimping 52 of sanitary towel of the present invention does not overlap, and does not attempt the panty of wearer receipts are disturbed.Side crimping 52 is used for regulating panty and moves.They move with panty and allow panty to move in other words, rather than resemble that two sheets of McCoy sanitary towel do retrain moving of panty.
And the panty covering members is fixed within vertical side of main part is favourable, can obtain a lot of benefits by main part and panty covering members are separated.Main part and panty covering members separate and relate to main part and leave on the Z direction.The ability of panty covering members (for discuss the principle separate in other cases can grant with reference to April 16 in 1991 people such as Osborn United States Patent (USP) 5007906 and October 29 nineteen ninety the U.S. Patent application 07/605583 with people's such as Visscher name application).Utilization separates part 102 (or " separator " or " middleware ") but the separating of realization body part, using adapter to be connected on the main part and in joint place and to be connected to (bonding station can comprise line, district etc., Gu this abbreviates " joint " as) on the panty covering members between two groups of positions with separating part 102 in joint place.
The embodiment of three basic structures that can separate is illustrated in (Figure 13 and 13A among Figure 13-15C; Figure 14 and 14A; And Figure 15-15C).Figure 13-15C shows this adapter and directly the panty covering members is connected on the main part of sanitary towel.At 110 places, main part fixed position separator 102 is fixed on the main part 21,112 places are fixed to separator 102 on the panty covering members 100 in underwear covering members fixed position.This three picture group shows the relation of the various different probabilities between main part fixed position and the underwear covering members fixed position.
Figure 13 and Figure 13 A show first embodiment, and sanitary towel has a kind of structure among the figure, and it makes the main part 21 of sanitary towel separate with panty covering members 100.A kind of basic skills of finishing this is that separator 102 comprises one or several part, they form pair of leg 107, and this lower limb is connected to underwear covering members 100 on the main part 102.Sanitary towel shown in Figure 13 and the 13A is characterised in that to be connected to bonding station 110 on the main part be to link the inboard of these positions on the panty covering members 100 (promptly close longitudinal centre line) separating part separating part 102.The main part 21 that structure shown in Figure 13 A allows sanitary towel and the health of wearer keep closely contacting with in addition when panty leaves wearer thing health the panty covering members also be fixed on the wearer panty.Can take several different modes to realize above-mentioned basic structure.
For example, in the embodiment shown in Figure 13 and the 13A, sanitary towel 20 can have the two panty covering members of being made up of upper strata 116 and lower floor 118 of shape version layer by layer.In this embodiment, two of layered article layers engage at 112 places, fixed position that are positioned at the vertical side of layered article.Two layers of layered article do not engage between the fixed position.This just makes disengaged part 109 (and top layer of the main part 21 of sanitary towel) and the lower floor 118 and the panty crotch of layered article on the upper strata 116 of layered article separate.Structure shown in Figure 13 and the 13A provides the lateral stability of needs embodiment illustrated in fig. 12.In addition, can make the upper strata have cross direction elongation is inwardly strained body pants covering members with the core that reduces to compress possibility.
Though the structure of sanitary towel shown in Figure 13 is suitable for making main part and panty covering members to separate, some trend that still cause the side crimping to be pulled inward when main part is swelled as shown in FIG. 13A.Yet the embodiment shown in Figure 13 and the 13A still is considered to be better than Salerno sanitary towel.
Figure 14 and 14A show second embodiment who separates structure.In this embodiment, adorn a pair of inside fixed lower limb 107 for sanitary towel 20 as adapter, lower limb 107 is connected to (that is, the position that separator is linked on the main part is in the outside of separator being linked the position of panty covering members) on the main part 21 to panty covering members 100.Inside fixed lower limb can comprise many possible structures.For example as shown in figure 25, this inside Convenient table comprises the part of one or more sanitary towels component parts, this part in the bottom of sanitary towel's main part by pleating and be folded and be fixed on the panty covering members.As a kind of selection, inside fixed lower limb can comprise the main part that is connected to sanitary towel and a plurality of independent separator on the panty covering members.Embodiment shown in Figure 14 and the 14A has the advantage that the panty covering members is not pulled inward when core and two lower limbs are compressed, and this two lower limb makes main part have stability, prevents that main part from tilting and curl.
Figure 15-15C shows the 3rd embodiment, and in this embodiment, sanitary towel has the structure that the main part that makes sanitary towel and panty covering members separate.Panty covering members shown in Figure 15 and the 15C has pleating lax parts between main part and panty covering members.This sanitary towel combines the characteristics of the embodiment shown in Figure 13 and 14, can think that this panty covering members has two lower limbs, the bottom of lower limb as shown in figure 13 and top as shown in figure 14.The lower part of the syndeton between main part 21 and the panty covering members 100 helps to prevent that the compression of main part 21 from influencing panty covering members 100 and conforming to the panty of wearer.The top of syndeton allows the main part protuberance or is consistent (as presenting " W " shape) with the body contour of wearer and does not cause that the width that panty covering members 100 is inwardly drawn makes the panty covering members reduces.
Figure 15 B and C show other two kinds main part are connected to adapter on the panty covering members.Figure 15 B shows with the form of lax parts main part is linked part on the panty covering members.Figure 15 C shows between main part and panty covering members extendible parts.
The feature of the covering members of panty shown in Figure 15-15C be special wish to be used for thicker (as, thick bigger than about 8mm) on the product of main part, when the both sides of sanitary towel's main part when they are not restrained in Figure 14, they be can move, upwards carry, near to the health of wearer.
Separate above, this separator 102 is described with regard to how to cooperatively interact main part 21 that makes sanitary towel and the panty covering members that Z makes progress of separator 102.Separator has also increased the function of some embodiment, in these embodiments, can be connected to the panty covering members on the one inductile main part, in this case, separator is preferably in to be equal to or less than under those power that cause the extension of panty covering members has extensibility.Separator can be used as a stretching separator (or " separator ") like this, extends to allow panty covering members 100, with can not haveing nothing to do by extension (or extendible less) of main part.
Now, basic conception and the structure in order to the panty covering members of foregoing description discusses the most preferred embodiment shown in Fig. 1-5 in more detail.Sanitary towel shown in Fig. 1-5 comprises a panty covering members 100, and this covering members has an extensible sheet with separator 102 uses at least.
Extensible sheet shown in Fig. 1-5 is made of the runway shape part of a chip size greater than sanitary towel's main part size.Panty covering members 100 can have any suitable dimensions and shape, and for example, it can be some size that is less than or equal to sanitary towel's main part.The panty covering members can be oval, and rectangle is irregular, or other suitable shape.
Fig. 1 shows extensible sheet and laterally stretches out in the center 32 of sanitary towel 20 and exceed the longitudinal edge 22 of sanitary towel's 20 main parts 21.Extensible sheet longitudinal edge 22 that 32 horizontal expansions exceed sanitary towel 20 in the center provides side crimping 52, and this side crimping 52 can wrap on the edge of panty of wearer.
Yet, are sheets that have side crimping 52 though be appreciated that panty covering members 100 shown in the drawings, other embodiment is also within the scope of the invention.For example, in interchangeable embodiment, each side crimping 52 can be made of the independent sheet on one or more main parts 21 that are fixed to sanitary towel.In other interchangeable embodiment, side crimping 52 can be part of main part or a plurality of ingredient.In addition, although shown side crimping 52 is to stretch out from each longitudinal edge of main part, can have only a side crimping to extend from an edge of main part.In addition, the side crimping is preferably mutually corresponding, that is, be symmetric around longitudinal centre line.Therefore, can understand that the shape of the side crimping of being narrated and position are preferred embodiments here, other embodiment also is fine.For example, side crimping 52 is disalignment along the longitudinal, and is big from the distance of this another horizontal edge of horizontal edge of main part.
In the embodiment shown in Fig. 1-5, extensible sheet preferably can extend longitudinally at least.Yet, extensible sheet (any other the panty covering members or sanitary towel's part of here being chatted) can be only in horizontal expansion, or only the direction of certain between vertical and horizontal extends, or has two-way or multidirectional extendability.
Extensible sheet can be made by any suitable material.In an indefiniteness embodiment, to make by stratiform goods for extensible, this layered article installs to the extendible thin film of a slice such as Findley Adhesive198-338 thin film between two vertical extendible nonwoven nethike embranes and constitutes.In another embodiment, extensible sheet can install to an adhesive membrane between extendible nonwoven nethike embrane or the roll extrusion ring grain plastic film chip and constitute.As being used for the adhesive film of egative film.
Side crimping 52 is not than traditional flanging little (that is, the side crimping has from an end to the so big distance of another end).Best, the size of side crimping is relevant with the crotch portion size of the panty of wearer.The crotch of measuring in the narrowest place of the crotch portion of panty is wide on average to be approximately 65-70mm (approximately
Inch).Yet the size range of panty is very wide, and the width of its crotch can be from about 2 inches (about 5cm) to about
During inch (approximately 11.4cm).In some present goods, the hemmed minimum span of tradition is about 5 inches (about 12.7cm) for flakelet shape flanging.
According to these factors, when the side crimping folded into below the panty of wearer, the width of this side crimping should be even as big as not overlapping.The size of side crimping can be described with the term on the border that relates to sanitary towel's main part.For example, side crimping 52 can be used in the vertical dimension D of the innermost point R from main part vertical side of the edge 53 in the X-Y plane point of close longitudinal centre line (that is) to the terminal edge 53 of side crimping 52
1Represent.Side crimping 52 is less than or equal to approximately for one section with the most inboard extension from sanitary towel's main part
The distance of inch (about 3cm) is for well.Be more preferably, the side crimping is less than or equal to the size of column distance down from the most inboard some extension of main part: about 1 inch (about 2.5cm), about 3/4 inch (about 2cm), approximately 1.5cm and about 0.5 inch (about 1.25cm)
When both sides crimping 52 transversely extended round about, the span of side crimping 52 can be represented to the distance between another terminal edge with a terminal edge fully.A represented by this way terminal edge from the side crimping, is more preferably and is less than or equal to about 4 to serve as better less than about 5 inches (about 12.7cm) to the distance of another terminal edge (and just the span of panty covering members)
Inch (about 12cm).The minimum span of side crimping 52 should be more than or equal to the following any value that provides, and this span is also wide greater than the crotch of panty: approximately
Inch (about 6.4cm); About 3 inches (about 7.6 or 8cm); Or approximately
Inch (about 9cm).The better scope of side crimping span is about
Inch is to about
Between the inch, the span scope of side crimping arrives at about 4 inches (about 10cm)
Between the inch (about 11.5cm) is best.
The length of side crimping 52 (longitudinal size) can change on a large scale.The length of side crimping 52 preferably equals the hemmed longitudinal size (as described in background technology of the present invention) of known type at least, so that interfix, or is fixed to the downside of the panty of wearer.Therefore, the side crimping can at first extend from the central area of sanitary towel's main part.In addition, the length of side crimping can be equal to or greater than the length of main part.Yet, provide the side crimping to consider it is preferably from the viewpoint of expense less than the sanitary towel of main part length, need less material because manufacture such sanitary towel.
For make panty covering members 100 automatically be rolled onto wearer panty limit portion and it is encased, this covering members also should have other feature.For example, at least a portion of extensible sheet is made of the material of low restoring force and high deformation values (high set).When these materials are extended, be not the size that turns back to all when not extending.Inch after they will be tending towards keeping (or fixing) to extend near them.
When side crimping 52 is made of the material of high deformation values, after extending, they wrap in the crotch portion of panty of wearer.High deformation values has reduced side crimping 52 swells the panty retraction of wearer, also promptly not from the open trend in the bottom of panty.
After terminology used here " deformation values (set) " is illustrated in and applies and eliminated described stretching, be retained in the set deformation volume (as the percentage ratio of primary sample length) in the sample.This process and equipment will be described below.(unless otherwise indicated, otherwise described here all experiments all carry out with sample, and these samples are placed two hours in the indoor environment with 50% relative humidity and 22.8 ℃ of (73) temperature before experimentizing).
The distortion of materials value is by on Instorn mould shape assay device 1122, with the crosshead speed of 10 inch per minute clocks (25 cm per minute) with 1 inch wide * 4 inch long (specimen material of 2.5cm * 10cm) be drawn into given distortion decide.This sample is installed on the Instorn clamp so that extended axis is parallel to the length dimension of sample.The measuring length of sample (distance between the bite) is 2 inches (5cm).In this special test used percentage elongation be 30%[promptly, the sample of 2 inches (5cm) is drawn as 2.6 inches (6.6cm)], stretch to continue 30 seconds.Then, the distance between the clamp turns back to 2 inches (5 centimetres) (be for sample 0% percentage elongation), and keeps for 60 seconds in this position.Repeat this special circulation then.The percentage ratio of deformation values is determined to be in the point of first on the tensile axis, and at this place, extended power is greater than zero in circulation for the second time.As shown in Figure 27, it has shown the average deformation percentage value of three samples.Extensible preferably material has the deformation values more than or equal to 10% percentage elongation, and better extensible material has more than or equal to 15%, 20%, 25% or 30% percentage elongation (at 30% deformation values place, all distortion all are permanent deformations).
Material with high deformation values is used in particular for the several selected part of sanitary towel.Two such parts are the broken line district, and in this zone, side crimping 52 is folding around the leg opening place of the pair of curved at panty crotch place.When side crimping 52 was folding around the crotch of smallclothes, the material in these zones was stretched.This stretching is also carried out to the outside that is folded into along the edge of side crimping 52.(this tensile the acting in the United States Patent (USP) 4917697 of granting people such as Osborn April 17 nineteen ninety on having traditional hemmed sanitary towel parts described.)
Examples of material with high deformation values has zero percentage elongation non-woven material, resembles by there not being roll extrusion ring grain non-woven material or the nonwoven nethike embrane that sticking fiber constitutes.In one embodiment, whole extensible can be made of a kind of material of such type.In further embodiments, extensible sheet can only be that side crimping 52 such materials constitute.In this case, except side crimping 52, whole extensible sheet all can be made by the layered article that has extensible adhesive film.In such embodiments, the material piece of side crimping 52 does not partly have stretchable adhesive film.But extensible that has the tensile viscosity film can flexibly be stretched, and side crimping 52 does not flexibly stretch.As a result, side crimping 52 can fold around the panty of wearer and adhere in its lower section, and is not tending towards to returning upset.
In further embodiments, have only the subregion of side crimping 52 to constitute by material with high deformation values, as, be positioned at side crimping 52 and can constitute by such material around near the part of the side crimping 52 the folding folding shaft of the crotch of panty.And the remainder of side crimping 52 they are gathered below the side crimping folds into panty the time, and do not stress.
Side crimping 52 preferably also has the side that allows its panty of rolling up wearer and the not open characteristics of elastic cord of wrapping panty.These characteristics are low restoring forces, anti-rim pressure and firmly folding.
As described below method is measured restoring force: (2.5cm * 10cm) long sample downcuts from the material that will test, so that the major axis of sample is on the direction (having the highest percentage of elongation in minimum power effect) of the minimum modulus of material with one 1 inch * 4 inches.Then, this sample is contained in comprises a dynamometry table, in the clamping device of a steel ruler and two clamps, steel ruler is used for the elongation of measuring samples, and clamp is used to the distance (measuring length) that keeps sample to leave 2 inches (5cm).One of them clamp and dynamometry epiphase connect, another clamp links to each other with laboratory jack that can lifting.Whole device is placed in the stove and accessory of 98 (37 ℃), and sample is sandwiched in the middle of two clamps.Sample is stretched to 30% percentage elongation (2.6 inches is 6.6cm), and under this position, kept 5 minutes.Then, the percentage elongation of sample is reduced to 25%, the power on the dynamometry table shows that restoring force is at 25% place.This has just simulated temperature and the extensibility that is had on material in the product that this material of wearing is made.The meansigma methods of the restoring force of three samples is noted.Restoring force should be less than or equal to about 100 grams, is less than or equal to about 50 grams better, is preferably less than or equals about 25 to restrain.
" anti-rim pressure " relates to the measurement to the solid degree of the material that constitutes the side crimping.Specifically, rim pressure relates to the material that constitutes the side crimping in side crimping the be stretched plane of microscler one-tenth and the tendency of warpage when applying power on the plane perpendicular to the side crimping.Anti-rim pressure can pass through, and a plate or seat 115 is placed perpendicular to the edge 53 of side crimping 52, and applied a power on the plane perpendicular to the side crimping by this seat and measure.This characteristic is important, is unsound because if constitute the material of side crimping, and when power being applied on the side crimping by the elastic cord of the panty of wearer when dressing, it will swell.The anti-rim pressure of side crimping more than or equal to about 5 grams better, and is better more than or equal to following train value; About 7 grams; About 10 grams and about 15 grams.
Instorn Model 1122 equipment that are equipped with the ballast pick off are used in the rim pressure experiment.This ballast pick off (a Compression Load Cell) and Sintech, the Festworks TM software that Znc. company makes is connected, and carries out work with Gateway 486/33HE computer.All parameters that are used for testing all stipulate at computer program, as, crosshead speed, and upwards extensibility and extensibility etc. downwards.Therefore, all data collection, data analysis and drawing are all finished by Festworks.
Upload the sample of next piece 9mm * 25mm from the panty covering members, make the edge 53 of side crimping be parallel to the long limit of 2 5mm of sample.The long limit that sample is in stand up position is bonded on the sheet glass (promptly vertical with sheet glass).Sheet glass is called as sample holder.This sample and support are placed on the platform at crosshead top.Crosshead speed is set to 1.0 inch per minute clocks (25 mm/min).A T type bar is connected with the ballast pick off, and crosshead is raise, be applied on this sample up to 0.5 load that restrains.Be set to zero in this position measuring length, the distance that crosshead is moved 3mm on continuing.Crosshead turns back to zero elongation then, and repeats this circulation.Write down two circulation maximum, force, with the meansigma methods of five samples as rim pressure, as shown in figure 28.
" firmly folding " relates to the side crimping remains on due position after folding around the crotch portion of panty ability.Fold and firmly measure by following steps.At first, the side crimping is folding around the crotch of panty, then folding side crimping is placed on the flat surface, and folded sides up.The weight of 105 grams is placed on side crimping last 5 minute of clock time, and this experiment is carried out under 36.7 ℃ of (98) temperature.Weight is removed, allowed the side crimping to open (if having any trend of opening).If the side crimping opens, weight is removed after 30 seconds between side crimping and this plane surface formed angle measure amount of expansion by measuring.Angle between side crimping and the plane is more little, and the folding fastness that the side crimping has is good more.With the folding fastness of the measured side crimping of aforesaid way be less than or equal to 90 ° good, be less than or equal to 45 ° better, be preferably less than or equal 20 °.
In a concrete preferred embodiment, the side crimping can comprise a kind of material at least especially, and it has " dead folding " characteristic, as aluminium foil or yarn synthetic fibre wrapping paper, so that the side crimping will have minimum recovery tendency after being folded.
In the preferred embodiment shown in Fig. 1-5, panty covering members 100 uses a kind of separator 102.This separator 102 makes sanitary towel have slack between main part 21 and panty covering members, and panty covering members 100 can separate, and when panty leaves human body, makes the main part can the more close person.
Fig. 1-5 shows an example, and wherein, separator 102 is the positions that are positioned at the egative film 40 of sanitary towel 20.Separator shown in Fig. 1-5 is preferably by making at vertical extendible at least nonwoven nethike embrane.The main part of embodiment shown in Fig. 1 to 5 has the barrier layer of an impermeable liquid between absorbent cores and separator.And this separator can substitute egative film in other embodiments.In other embodiments, sanitary towel 20 can have traditional egative film, and separator 102 can comprise a part that links to each other with egative film 40.If separator 102 is used to append to egative film, then it can permeation liquid.If separator 102 substitutes egative films, it is impermeable liquid preferably.
As mentioned above, panty covering members (being extensible sheet among Fig. 1 to 5) preferably is connected with the main part 21 of sanitary towel, (that is, under the situation of the embodiment shown in Fig. 1 to 5, being connected with separator 102 at some disconnected position).Extensible sheet can link to each other with separator 102 by any suitable fixed structure.Suitable fixed structure comprises the employing binding agent.And the like thing, but be not so limited.
Fig. 1 shows extensible sheet can be attached to situation on the separator 102.Fixed structure 108 comprises the less adhesive area 106 that the binding agent 104 in the big zone of centrage setting longitudinally reaches at 27 places, turning of sanitary towel 20.These binding agents can be extendible or inextensible.The binding agent 104 in big zone can form the pattern of any suitable form.The binding agent 104 in big zone can form one or more splicing tape, piece, point or line.Bonding Liu's band (or type like that) in big zone 104 can be alternate or successive.The length of bigger regional binding agent and width can be according to size adjusting.The size range of the length of big regional binding agent can be from fritter district that centrage transversely is provided with to almost along zone that sanitary towel's length is extended.Length at the binding agent in the shown big zone of illustrated embodiment is about 6 inches (about 15cm).The binding agent 104 in big zone can be from very narrow scope to quite wide scope.The width of big regional binding agent 104 can be small enough to a fine rule of centrage setting longitudinally.Following discussion relates to the shape of selecting fixed mechanism, for example the bonding agent 104 in big zone and than the binding agent 106 of zonule.
Between panty covering members and sanitary towel's main part fixed structure many interchangeable shapes can be arranged.Several shapes of fixed structure are presented at (Figure 17-20 has also shown several embodiment of panty covering members, and their longitudinal size is stopped the part weak point than the master of sanitary towel) among Figure 17-20.Figure 17 has shown the fixed structure of rectangle region or bulk form, and it is the center with the longitudinal centre line.Figure 18 has shown that this band is arranged on the both sides of longitudinal centre line with two fixed structures 108 in the strips of longitudinal direction extension.Band can be any suitable shape that extends longitudinally usually.Suitable shape comprises linear band, and the shaped form band is interrupted shape band and other type, but not limited.Band is from the longitudinal edge 22 inwardly close vertical side of the edge 22 of main part 21.
Figure 19 shows the fixed mechanism of two strips along horizontal expansion.Band is arranged on the both sides of cross central line.These bands preferably are positioned at the widthwise edge portion 100D place that panty hides part.Figure 20 shows a kind of fixed mechanism, and it comprises that having two is similar to the band shown in Figure 19 and a center strip, and center strip longitudinally centrage links to each other with two horizontal bands, is " worker " font.Fixed structure shown in Figure 19 and 20 has following advantage, they allow the main part 21 of sanitary towel to separate with the panty covering members, and the center 32 of main part also can make main part inwardly gather and the covering members of panty is not inwardly drawn.
Get back to the discussion of the preferred embodiment shown in Fig. 1-5 now, provide a kind of like this product to consider the some months factor.When such embodiment was provided, main part was normally inextensible, and the critical size that plays appropriate effect for panty covering members in the diagram is D
2(being shown among Fig. 1).As shown in Figure 1, dimension D
2Can be from vertical or horizontal measurement.Dimension D
2Be from (a) separator 102 and sanitary towel any non-extensible mutually abutting edge point p to the distance (b) separator 102 and extensible the sheet phase abutting edge point Q.(in this embodiment, if main part constitutes by non-extensible or extensible hardly, separator 102 will be bonding at the joint 90 around sanitary towel's periphery with any non-extensible of sanitary towel.
Dimension D
2Be important, because the extendability of the main part of extensible sheet of its influence and sanitary towel 20 can be spaced.For the needed dimension D of concrete sanitary towel
2The corresponding percentage elongation of part that depends on all appropriate sections that constitute sanitary towel.Sanitary towel and dimension D
2Relevant part includes but not limited to non-extensible, extensible sheet, separator 102.For example, if separator 102 extendabilitys are very big, separator 102 will not need big dimension D
2, so that between extensible sheet and non-extensible, produce enough slacks.
Dimension D
2Also will depend on the size that sanitary towel 20 is fixed to fixed structure used on the panty of wearer.This is because lax part also exists in the part of extensible sheet, and this part is between the edge of panty fixture and extensible sheet and separator 102 connections.Among the described here embodiment, D
2Better more than or equal to 5mm, D
2Better more than or equal to 15mm.D
2The upper limit as follows, D
2Had better not be greatly to putting the cross point I that Q extends beyond sanitary towel's centrage.
Fig. 4 and Fig. 5 express the situation when the sanitary towel with panty covering members 100 shown in Fig. 1-3 is stretched.Extendible sheet be subjected to wearer underwear U stretching and launch.Fig. 4 has launched when when sidepiece is seen sanitary towel, will the make progress situation of warpage of two petiolareas 28 and 30 of sanitary towel 20.This will make sanitary towel that the profile of a whole lonitudinal warping is arranged.Fig. 5 shows sanitary towel 20 or the saddle-shaped situation of seeing from the end.Special curved shape shown in Fig. 4 and Fig. 5 is that the shape by the fixed structure between extensible sheet and the separator 102 causes.Other fixed structure can be used to produce the expansion shape of other class shape.
As mentioned above, by this simple action of panty that wearer upwards draws her, the panty covering members just automatically wraps on the side of panty of wearer.About the feature of panty covering members, there are several situations to consider in addition.
The first, in panty, place and have the sanitary towel of traditional tabs, and do not have harmonious automatic winding feature of the present invention when upwards drawing this panty.This has several reasons.Traditional tabs is inextensible, so they can not be harmonious with panty.Traditional tabs does not have low restoring force and high folding fastness, and therefore, in this case, when traditional tabs wrapped on the panty, they can not be in this position all the time.In addition, the tabs of conventional size has unnecessary tabs part, and these unnecessary parts are hung in downwards below the panty when dressing, and these unnecessary parts can move below smallclothes too much.In other words, the span of side crimping of the present invention has ideal and rational width, be enough to wrap on the elastic cord edge of panty, but width and within reason.Be not hung in the redundance below the panty, the extensibility that is had has in addition reduced when dressing the side crimping vertically to cohesion tendency of disturbing.
Should consider second is that the part of panty covering members of vertical end of the side crimping on not wrapping in the edge of panty also plays an important role.This two end portions (i.e. " non-winding part ") in Fig. 1 by 52 ' represent.This structure of this sanitary towel makes non-winding part 52 ' can enter the shank wrinkle place of wearer naturally, and the effect of dress liner is arranged for the health of wearer.This can be considered to provide extra protective effect to wearer, prevents the panty of wearer of making dirty, even the zone that does not hide the elastic cord of panty at the panty covering members also is like this.For its main part sanitary towel longer than 200mm, when the panty covering members is grown for about 150-200mm, or this is ideal especially when reaching the length of main part about 90%.
Non-winding part 52 ' the benefit of dress liner be considered to that the Several Factors relevant with SANITARY NAPKIN CONSTRUCTION cause.When side crimping 52 wraps on the edge of panty, non-winding part 52 ' maintenance tension.Non-winding part 52 ' an end fix by the panty elastic cord.The other end is fixed by the less adhesive area 106 at 27 places, sanitary towel turning.This just makes non-winding partly be kept upright, and with the structure of formation liner type, rather than turns up simply.
When the panty covering members when a side that faces health has non-woven material, the advantage of being brought by non-winding part is more obvious.At this moment, the surface that it provides " friend of a skin " formula for the panty covering members, when the time spent of doing that non-winding partly plays the dress liner, this surface needs.
As mentioned above, the panty covering members provides extendible (can stretch out) the interactional connection between the underwear of the main part of sanitary towel and wearer.The ability that the underwear that panty covering members 100 is used in particular for that common inextensible sanitary towel is had and is suitable for wearer is stretched out.The panty covering members also is used for described other ductile advantage here.Panty cover piece 100 is extendible.Therefore, the various extendible fixture described in U.S. Patent application NO.07/91533 (PCT publication number NO.93/01783) can be considered.
F, sanitary towel is fixed to the fixture on the panty of wearer
The underwear of sanitary towel 20 surface 20B (that is, panty is made the underwear surface 100B of cover piece) can comprise fixture 44 (that is, " and be used for sanitary towel be fixed to part on the underwear of wearer " or " connector).
Fig. 2 and Fig. 3 show center pad fixture 44, and it is suitable for the main part 21 of sanitary towel 20 is fixed on the crotch portion district of underwear, and be fine as this purpose effect by the fixture that binding agent constitutes.Any bonding agent used in the prior art or glue can be used for this purpose, be best with pressure-sensitive adhesive.The Century A-305-IV that suitable bonding has CenturyAdhesived Corporation to make, by the Instant Lock 34-2823 type of NationalStarch Company manufacturing, by the 3Sigma 3153 of 3Sigma manufacturing and the Fuller H-2238zp type of H.B.Fuller Co manufacturing.The suitable bonding fixture has also been described in British patent 4917697.
According to the desired characteristic of sanitary towel, center pad fixture 44 can have many possible planforms.Fig. 2 and Fig. 3 show the arrangement an of the best, it has used the vertical alignment area as the extensible binding agent at center with longitudinal centre line L, another suitable anchor structure shape is presented among the open NO.WO92/04000 of pct international patent, name is called " shape and the adhesive part that are used for absorbent commodity ", and is open with people's such as PaPa name on March 19th, 1992; The open No.WO93/01785 of PCT, open with people's such as Oborn name.
Be appreciated that the part that forms sanitary towel underwear surface can be extended that can use special binding agent shape, this depends on extendible binding agent of use or inextensible binding agent in the panty of wearer.It will be extendible that sanitary towel has extensible binding agent part.The sanitary towel that comprises non-extensible binding agent will only may be to extend in the middle of inextensible adhesives block usually.Therefore,, preferably they are used in alternate mode, comprise alternate point if use inextensible binding agent, interrupted band, with analogous shape, but not limited, so that sanitary towel extends between bonding block.On the other hand, if binding agent is extendible, binding agent can use in above-mentioned shape (with other shape) in successive or alternate mode.If binding agent is extendible, they preferably with sanitary towel's extension amount much at one, as shown in table 1.
The extensible binding agent that is fit to comprises the combination of self extendible binding agent and extendible binding agent/egative film.The extensible binding agent of any known technology can use.The combination of suitable extensible binding agent/egative film includes but not limited to the non-extensible binding agent used on extensible egative film spare, as, can be from Anchor Continental, Inc.3sigma Division, the 3sigma2474 that of Covington, ohio obtain; And the extendible adhesive film of elasticity, as, Findley adhesive198-338, or by MinnesotaMining and Maufacturing Company of St.Paul, the available known 3M * PO-0-014 of Minnesota; Or the spray form binding agent that on the thin film of low elasticity film amount, uses, as 3M binding agent 1442.
In addition, except binding agent, can replace with the fixture of other type.The fixture of these other types preferably is arranged to the disclosed adhesion shape of the invention described above similar.Such fixture includes but not limited to traditional VELCRO claw; Fixture described in following file, grant the U.S. Pat 4946527 of Bat-trell August 7 nineteen ninety, the U.S. Pat 5058247 and 5116563 that on October 22nd, 1991 and on May 26th, 1992 are granted people such as Thomas, in the open N00381087 of disclosed EPO patent application on August 8 nineteen ninety, or the United States Patent (USP) 4166464 of granting Korpman, grant Linker, people's such as III US4834739 and grant great friction coefficient foam and other high coefficient of friction material of the identical type of describing among people's such as Gossens the US5011480.These fixtures also can be made extendible, as described at U.S. Patent application 07/915133 (PCT publication number N093/01783).
As mentioned above, this state can be rolled and keep to side crimping 52 not having under the situation that it is fixed to the fixture on the panty.Yet, for reliable more embodiments of the invention can have selectable fixture.Selectable side crimping fixture 45 can be any illustrated here fixture.
Selectable side crimping fixture 45 helps to make side crimping 52 to remain on this position after wrapping on the crotch portion edge of panty.Side crimping fixture 45 can be fixed on the underwear table coplanar of side crimping 52, near the terminal edge 53 of side crimping 52 (that is, the end of side crimping 52 from the longitudinal centre line L of sanitary towel 20 farthest), or is positioned at other any position on the side crimping.
In interchangeable embodiment, as shown in figure 21, side crimping 52 is the side crimpings with fixture 45 of banded hook-like part 45 or other structure.In this embodiment, the hole 49 on banded hook-like part 45 is with radial distribution, and in order to improve the banding characteristic, hook can be directed on specific direction.In the embodiment shown in Figure 21, the mouth of hook preferably is directed, and makes their cross points towards the vertical and horizontal centrage.
The application machine fixture is useful especially on absorbent commodity, and this is because the panty of wearer during along with the body kinematics of wearer, has reduced to be applied to the effect of the shearing force on the underwear surface 20B of sanitary towel 20.The mechanical fixed part that combines with the panty fiber of wearer will move along with panty, reduce by the caused trouble of these shearings.Mechanical fixed part has conjunction 49, and it combines with the fiber (being generally yarn or textile fabric) that hides the panty leg elastic well.Mechanical fixed part can combine with the panty elastic cord top fiber that covers wearer, combines with covering panty elastic cord sidepiece fiber or combines with covering panty elastic cord bottom fiber.
At panty elastic cord place or near this place and other position, use mechanical fixed part as 24 places, edge in sanitary towel's 20 main parts, also eliminated and the more caused problems of independent use adhesive part.Mechanical fixed part does not have the flocculose problem that binding agent adheres to wearer's body, does not have bonding agent yet and becomes problem that can not be bonding and cause sanitary towel's inflection and the problem that self sticks together when panty and panty elastic cord move and stretch.In addition, as shown in figure 22, when wearer was put on panty, the leg elastic E of panty was stretched, and this just causes that elastic cord produces pressure F on the health of wearer
EThese power provide a vertical stress component with respect to the side crimping 52 facing to wearer's body.This vertical stress component makes fixture machinery or friction more effective.The mechanical fixed part that vertical stress component can help to have claw penetrates and hooks on the fiber of panty of wearer.In theory, vertical force will make hook automatically combine with the fiber of panty, seldom or not need wearer effort pressure hook to enter panty.
In another embodiment shown in Figure 23, panty covering members 100 has breach at 120 places, four turnings, makes the panty covering members be adapted to the shape of the underwear of wearer.When sanitary towel was dressed by the people of menstrual phase short type, when typically being dressed by Japanese women, this embodiment was useful especially.This breach also makes the panty covering members have rib to overturn below the crotch portion district of the underwear of wearer in the side crimping.Panty covering members 100 shown in Figure 23 preferably has whole multidirectional extendability.The panty covering members also preferably has the adhesive part, topped topped the whole underwear side except two longitudinal register districts 128 that do not have binding agent of this adhesive part.Adhesive-free district 128 prevents that side crimping 52 from can not turn back and paste on the other parts of panty covering members can taking off after paper is thrown off from the back side of panty covering members.The adhesive-free district can selectively have can take off from part, bonds to the tendency of panty covering members with further minimizing side crimping.
Before placing sanitary towel,, do not bond to before use on the surface except the crotch portion of panty during use in order to make binding agent if use the adhesive part, usually binding agent with removable covering tape maybe can take off from lining cover.Suitable taking off from lining also described in above-mentioned United States Patent (USP) 4917697.Any from commercial available be generally used for these purposes take off from the lining can be applied in here.The example that suitable the looking into of indefiniteness taken off from lining is BL30MG-A silox E1/0 and BL30MG-A silox 4P/0, and the both is made by Akrosil Corporation.
In particularly preferred embodiment; the protection of adhesive part 50 usefulness one package; this package not only covers binding agent; it also provides the sanitary towel of independent packing and has been used for after use placing the container of sanitary towel, as granting people's such as Swanson U.S. Pat 4556146 on the 3rd at December in 1985 and being called with the disclosed name of people's such as Berg name on May 27th, 1993 described in the international open WO93/09743 of PCT of " packing of sanitary towel and used adhesive sheet thereof ".
Following example further specifies practical application of the present invention.Yet, the scope of the absorbent commodity that following example does not limit here to be comprised.
Example
The assembling of the main part of sanitary towel is as follows.With the roll extrusion ring grain last slice be cut into required size, place a template at last downside, and apply the Findl-ey4031 binding agent with spirality pattern.Can take off egative film with the protectiveness that is attached on the flat surface from paper covering Find-ley.Absorbent gelling material (AGM) laminated core of joint-cutting is placed on the Find-ley egative film.On laminated core, BOUNTY crape fabric (shape be similar to last slice) is determined the center.On crape fabric, place last slice, each several part is fixed, and make the edge smooth.The roll extrusion edge is so that sealing.Can take off from paper and throw off from the back side of egative film.Be torn into 2 or 3, will have then low basis weight 22.74g/m is arranged
2(19g/yd
2) the Veratec non-woven material is placed on the binding agent of the exposure on the egative film (be arranged in non-woven material vertically can extended).With can be from Longa, Inc, Williams-port, PA.The 0.01gPEGOSPERSE surfactant that obtains sprays on this slice.
The assembling of panty covering members is as follows.Nonwoven layers 35.9g/m in two-layer big basis weight
2(30g/yd
2) between form the layer structure of an extensible binding agent of Findley, coat the panty fixed adhesive.
The assembling of whole sanitary towel is as follows.The Findley binding agent wide with 0.635cm (0.25 inch) pastes the periphery of sealing coat along main part on the main part.Sealing coat is trimmed to the shape identical with main part.This assembly is pasted on the panty covering members with the wide Findley binding agent of 3.81cm (1.5 inches).Binding agent is the center along the longitudinal centre line of main part.The panty covering members is cut shaping.
It below is the specification of finished product.
Main part
The parameter of main part
Specification
Heavy (g) 8.50 ± 0.18 of pad
Heavy (g) layer structure 2.54 ± 0.09 of core
Long (mm) 232 ± 4 of pad
Long (mm) layer structure 201 ± 1 of core
Wide (mm) 85 ± 1 of center pad
Wide (mm) 65 ± 1 of center core
Fill up thick (inch, at 9.14 gram per centimeters
2Pressure under)
0.11±0.01(2.9mm)
Core is thick, and (inch is at 9.14 gram per centimeters
2Pressure under) 0.074 ± 0.003
The part of main part
Specification
Polyethylene film shape last slice (U.S. Pat 4463045
The roll extrusion ring grain) 22.86 cm x are 12.7 centimetres
The extendible adhesive films egative film of Findley
(Formula#198-338) 22.86 cm x are 12.7 centimetres
The * of corrugation BOUNTY napkin molding
PFA (panty fixed adhesive) does not have
PEGOSPERSE 0.01g
Spunlaced non-woven material (the 22.74g/m of Veratec
2) 12.7 centimetres of 22.86 cm x
AGM joint-cutting core (centre is joint-cutting not); 65mm * 193mm
Core gross weight 2.5g; In close 6.985 centimetres of 0.7gAGM mesozone joint-cutting not
Findley4031 (binding agent) 0.05g
Sealing coat
The sealing coat parameter
Specification
Length (mm) 232 ± 4
Center width (mm) 85 ± 1
The part specifications of sealing coat
Spunlaced non-woven material (the 22.74g/m of Verarec
2) 12.7 centimetres of 22.86 cm x
Paste on the panty covering members 3.81 centimetres of 22.86 cm x
Paste on the main part 0.635 centimetre of (around periphery) 76.2 cm x
The panty covering members
The parameter of panty covering members
Specification
Length (mm) 232 ± 4
Width (mm) 108 ± 2
The part of panty covering members
Specification
Spunlaced non-woven material (the 35.9g/m of Verarec
2-2 layers)
22.86 12.7 centimetres of cm x
12.7 centimetres of extendible bonding film 22.86 cm x of Firndley
6.35 centimetres of PFA (panty positioning adhesive) 20.32 cm x
Can take off from paper by required
Other interchangeable embodiment of G
Although described the several preferred embodiments of sanitary towel, the example of other a large amount of sanitary towels openly in the literature.These sanitary towels can have the covering members of panty of the present invention.Some such sanitary towels respectively on April 23rd, 1991 and grant the U.S. Pat 5009653 of Osborn August 21 nineteen ninety and US4950264 and by the name of people such as Johnson application be called " arc absorbing articles " (the PCT publication number is to be described among the W093/01781.
Term " panty liner " or " panty pad " relate to than usually by the women at the portable absorbent commodity of the sanitary towel that menstrual phase is dressed.Become the suitable absorbent commodity of panty pulvilliform shape to be disclosed in the United States Patent (USP) 4738676, this patent name was " a panty pad ", granted Os-born on April 19th, 1988.
Term " incontinence article " relates to pad, (pad is by the suspension system of same type for underwear, remain on due position as band or other or the like), the liner that is used for absorbent commodity, the volume adnexa that is used for absorbent commodity, briefs, mattress, or the like, no matter whether they are dressed by adult or other incontinent people.The suitable incontinence article that have the panty covering members described herein are disclosed in the U.S. Pat 4253461 of granting people such as Strickland on March 3rd, 1981, grant the U.S. Pat 4597760 and 4597761 of Buell, above-mentioned U.S. Pat 4704115, grant people's such as Ahr U.S. Pat 4909802, grant people's such as Gipson U.S. Pat 4964860 October 23 nineteen ninety and by people such as people such as Noel and Feist in the U.S. Patent application 07/637090 and 07/637571 (the PCT publication number is respectively W092/11830 and WO92/11831, and these two all open on July 23rd, 1992) of application on January 3rd, 1991.
Disclosed these all patents, patent application (with any patent of issuing immediately, and any corresponding disclosed foreign patent application) and all be incorporated among the present invention by the publication that present patent application is mentioned.Yet, clearly, can not think any reference teaches of quoting or disclose the present invention here, commercial available material or the product instruction that also can not think here significantly to be narrated or disclosed the present invention.
We have showed and have described specific embodiment of the present invention, yet obviously as can be known, for the person of ordinary skill of the art, can carry out various other change or improvement under the situation that does not break away from principle of the present invention and scope.
Claims (23)
1. absorbent commodity that wears in the crotch portion of undergarment district, this absorbent commodity have in a longitudinal direction longitudinal size and lateral dimension in a lateral direction, a longitudinal centre line and a cross central line, this absorbent commodity comprises:
Main part with absorbent cores, this main part have a side towards health, towards a side and a pair of vertical side of the edge of clothes; And
The underwear covering members, this underwear covering members is connected in fixed point with the side towards clothes of described main part in the inboard of described main part vertical side of the edge, and be not connected with this main part in the lateral outer side to the described fixing point of small part, described underwear covering members comprises an offside crimping, this side crimping is folding around the side in crotch portion of undergarment district, this side crimping laterally stretch out exceed described main part vertical side of the edge one segment distance to terminal edge, this distance is less than a half width of described main part, wherein when described side crimping when the side of crotch portion of undergarment is folding, the part of described at least underwear covering members is extendible between the terminal edge of described fixing point and described side crimping, at least a portion of each described side crimping restrains under the effect of-1500 any power that restrain the amount of the 5%-50% that can stretch 50 between the terminal edge of described fixing point and described side crimping; Described extendable portion has and is greater than or equal to 10% deformation; The described extendable portion of described underwear covering members has the restoring force that is less than or equal to 100 grams; The described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 90 °; And the resistance of described side crimping opposite side compression is and is greater than or equal to 5 grams.
2. the described absorbent commodity of claim 1 is characterized in that, this absorbent commodity is a sanitary towel.
3. the described absorbent commodity of claim 1 is characterized in that, the described extendable portion of described underwear covering members is along also being extendible on the direction of cross central line.
4. the described absorbent commodity of claim 1 is characterized in that, the described extendable portion of described underwear covering members can extend 10%-40%.
5. the described absorbent commodity of claim 1 is characterized in that, the described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 20 °.
6. the described absorbent commodity of claim 1 is characterized in that, described side crimping comprises a kind of material with permanent folding characteristic.
7. absorbent commodity, have in a longitudinal direction longitudinal size and lateral dimension in a lateral direction, a longitudinal centre line and a cross central line, this absorbent commodity comprises:
Main part with absorbent cores, this main part have a side towards health, towards a side and a pair of vertical side of the edge of clothes; And
The underwear covering members, this underwear covering members is connected with the side towards clothes of this main part with separator between the described main part at this underwear covering members by one, this separator is connected with described main part at a pair of junction point place, and between this is to junction point, be not connected with this main part, this junction point is positioned in the vertical side of the edge of described main part, thereby what define described main part can be from the out of gear mesh disconnected zone of described underwear covering members, described underwear covering members comprises an offside crimping, this side crimping laterally stretch out exceed described main part vertical side of the edge one segment distance to terminal edge, this distance is less than a half width of described main part, at least a portion of wherein said underwear covering members is extendible between the terminal edge of described junction point and described side crimping, at least a portion of each described side crimping restrains under the effect of-1500 any power that restrain the amount of the 5%-10% that can stretch 50 between the terminal edge of described fixing point and described side crimping; Described extendable portion has and is greater than or equal to 10% deformation; The described extendable portion of described underwear covering members has the restoring force that is less than or equal to 100 grams; The described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 90 °; And the resistance of described side crimping opposite side compression is and is greater than or equal to 5 grams.
8. the described absorbent commodity of claim 7 is characterized in that, described separator forms pair of leg, and each lower limb has pair of end portions, i.e. first end that is connected with described main part and the second end that is connected with described underwear covering members.
9. the described absorbent commodity of claim 8 is characterized in that, described lower limb constitutes the extension of the vertical side of the edge of described main part in this main part folded beneath.
10. the described absorbent commodity of claim 7, it is characterized in that, described main part longitudinally centrage has three zones, these three zones comprise a first end zone, the regional and zone line between this first end zone and the second end zone of the second end, and the not join domain of described main part is positioned at described zone line at least.
11. the described absorbent commodity of claim 10, it is characterized in that, the bonding station that described separator is connected with described main part constitutes the main part bonding station, the bonding station that described separator is connected with described underwear covering members constitutes underwear covering members bonding station, and described main part bonding station and described underwear covering members bonding station are all spaced apart with this longitudinal centre line in the both sides of described longitudinal centre line.
12. the described absorbent commodity of claim 11 is characterized in that, described main part bonding station equates with the distance of the described longitudinal centre line of described underwear covering members bonding station distance.
13. the described absorbent commodity of claim 12 is characterized in that, described separator comprises a kind of stretchable material.
14. the described absorbent commodity of claim 13 is characterized in that, described separator is stretchable on the direction of centrage longitudinally.
15. the described absorbent commodity of claim 13 is characterized in that, described separator is along being stretchable on the direction of cross central line.
16. the described absorbent commodity of claim 13 is characterized in that, described separator is on the direction of centrage longitudinally and along being stretchable on the direction of cross central line.
17. the described absorbent commodity of claim 11 is characterized in that, described main part bonding station is compared the described longitudinal centre line of distance with described underwear covering members bonding station more inside.
18. the described absorbent commodity of claim 11 is characterized in that, described main part bonding station is compared the described longitudinal centre line of distance with described underwear covering members bonding station more outside.
19. claim 12,17 or 18 described absorbent commodities is characterized in that described separator is made of softish material.
20. claim 12,17 or 18 described absorbent commodities is characterized in that described separator is made of a kind of pleating element.
21. an absorbent commodity, this absorbent commodity have in a longitudinal direction longitudinal size and lateral dimension in a lateral direction, a longitudinal centre line and a cross central line, this absorbent commodity comprises:
Main part with absorbent cores, this main part have a side towards health, towards a side and a pair of vertical side of the edge of clothes; And
The underwear covering members, this underwear covering members is connected in fixed point with the side towards clothes of described main part in the inboard of described main part vertical side of the edge, and be not connected with this main part in the lateral outer side to the described fixing point of small part, described underwear covering members comprises an offside crimping, this side crimping laterally stretch out exceed described main part vertical side of the edge one segment distance to terminal edge, this distance is less than a half width of described main part, but wherein said underwear covering members has a periphery and comprises four stretched portion between the terminal edge of described fixing point and described side crimping, at least a portion of each described side crimping restrains under the effect of-1500 any power that restrain the amount of the 5%-10% that can stretch 50 between the terminal edge of described fixing point and described side crimping; Described extendable portion has and is greater than or equal to 10% deformation; The described extendable portion of described underwear covering members has the restoring force that is less than or equal to 100 grams; The described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 90 °; And the resistance of described side crimping opposite side compression is and is greater than or equal to 5 grams; When described absorbent commodity worn in described underwear and from above when watching downwards, intersect four positions by described four stretchable parts the crotch portion marginal portion of the periphery of described underwear covering members and described underwear.
22. an absorbent commodity, have in a longitudinal direction longitudinal size and lateral dimension in a lateral direction, a longitudinal centre line and a cross central line, this absorbent commodity comprises:
Main part with absorbent cores, this main part have a side towards health, towards a side and a pair of vertical side of the edge of clothes; And
Oval-shaped underwear covering members, this underwear covering members is connected in fixed point with the side towards clothes of described main part in the inboard of described main part vertical side of the edge, and be not connected with this main part in the lateral outer side to the described fixing point of small part, described underwear covering members is an independent member, this component limit one offside crimping, this side crimping laterally stretch out exceed described main part vertical side of the edge one segment distance to terminal edge, this distance is less than a half width of described main part, at least a portion of wherein said underwear covering members is stretchable between the terminal edge of described fixing point and described side crimping, at least a portion of each described side crimping restrains under the effect of-1500 any power that restrain the amount of the 5%-10% that can stretch 50 between the terminal edge of described fixing point and described side crimping; Described extendable portion has and is greater than or equal to 10% deformation; The described extendable portion of described underwear covering members has the restoring force that is less than or equal to 100 grams; The described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 90 °; And the resistance of described side crimping opposite side compression is and is greater than or equal to 5 grams.
23. an absorbent commodity, have in a longitudinal direction longitudinal size and lateral dimension in a lateral direction, a longitudinal centre line and a cross central line, this absorbent commodity comprises:
Main part with absorbent cores, this main part have a side towards health, towards a side and a pair of vertical side of the edge of clothes; And
The underwear covering members, this underwear covering members is connected in fixed point with the side towards clothes of described main part in the inboard of described main part vertical side of the edge, and be not connected with this main part in the lateral outer side to the described fixing point of small part, described underwear covering members has a side towards clothes relative with described main part, the clothes covering members comprises an offside crimping in described, this side crimping laterally stretch out exceed described main part vertical side of the edge one segment distance to terminal edge, this distance is less than a half width of described main part, at least a portion of wherein said underwear covering members is stretchable between the terminal edge of described fixing point and described side crimping, at least a portion of each described side crimping restrains under the effect of-1500 any power that restrain the amount of the 5%-10% that can stretch 50 between the terminal edge of described fixing point and described side crimping; Described extendable portion has and is greater than or equal to 10% deformation; The described extendable portion of described underwear covering members has the restoring force that is less than or equal to 100 grams; The described side crimping that does not have securing member on it has the folding retentivity that is less than or equal to 90 °; And the resistance of described side crimping opposite side compression is and is greater than or equal to 5 grams; Described side crimping can be inwardly folding on the specific part of described underwear covering members respectively, and a whole side towards clothes of described underwear covering members covers at the securing member that is all constituted by bonding agent except two vertical adhesive-free zones.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/096,121 US5584829A (en) | 1991-05-21 | 1993-07-22 | Absorbent articles having panty covering components that naturally wrap the sides of panties |
| US096,121 | 1993-07-22 | ||
| US096121 | 1993-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1097587A CN1097587A (en) | 1995-01-25 |
| CN1146375C true CN1146375C (en) | 2004-04-21 |
Family
ID=22255506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB941026205A Expired - Fee Related CN1146375C (en) | 1993-07-22 | 1994-01-21 | Absorbent articles having panty covering components that naturally wrap the sides of panties |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1146375C (en) |
| EG (1) | EG20443A (en) |
| MY (1) | MY110908A (en) |
| PE (1) | PE5995A1 (en) |
| TW (2) | TW328226U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6474169B1 (en) * | 2017-10-04 | 2019-02-27 | 株式会社光洋 | Absorption pad |
-
1994
- 1994-01-20 EG EG3894A patent/EG20443A/en active
- 1994-01-21 CN CNB941026205A patent/CN1146375C/en not_active Expired - Fee Related
- 1994-01-21 PE PE1994235393A patent/PE5995A1/en not_active Application Discontinuation
- 1994-01-21 MY MYPI94000169A patent/MY110908A/en unknown
- 1994-03-01 TW TW086200382U patent/TW328226U/en unknown
- 1994-03-01 TW TW083101751A patent/TW347319B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| MY110908A (en) | 1999-06-30 |
| TW328226U (en) | 1998-03-11 |
| PE5995A1 (en) | 1995-03-24 |
| TW347319B (en) | 1998-12-11 |
| CN1097587A (en) | 1995-01-25 |
| EG20443A (en) | 1999-04-29 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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