CN1254269A - Method for assembling body fitting compound sanitary napkin - Google Patents

Method for assembling body fitting compound sanitary napkin Download PDF

Info

Publication number
CN1254269A
CN1254269A CN 97182139 CN97182139A CN1254269A CN 1254269 A CN1254269 A CN 1254269A CN 97182139 CN97182139 CN 97182139 CN 97182139 A CN97182139 A CN 97182139A CN 1254269 A CN1254269 A CN 1254269A
Authority
CN
China
Prior art keywords
absorbent assemblies
main
main absorbent
sanitary napkin
assemblies
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 97182139
Other languages
Chinese (zh)
Inventor
阿希什·查特吉
韩石从
小约翰·伯恩斯
关申一郎
戴维·奥特吉恩
凯文·穆斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to CN 97182139 priority Critical patent/CN1254269A/en
Publication of CN1254269A publication Critical patent/CN1254269A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Orthopedics, Nursing, And Contraception (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

A method of manufacturing a compound sanitary napkin comprising a primary absorbent member and a base member is provided. The primary absorbent member extends in a longitudinal direction, comprises a primary absorbent element and a fluid peervious cover superimposed on the primary absorbent element, and superimoposes on the base member. The method comprises the steps of: wrapping the primary absorbent element by the fluid pervious cover to make the primary absorbent member, the primary absorbent element arranged to provide a first predetermined interval, forwarding the primary absorbent member, toward a combining section, feeding the base member toward the combining section, applying a union means to at least one of the primary absorbent member and the base member along at least a part of the longitudinal direction to affix the primary absorbent member and the base member, and combining the primary absorbent member and the base member by applying at least pressure at the interval.

Description

The method of the composite sanitary napkin of assembling body fitting
Invention field
The present invention relates to a kind of method of making disposable sanitary napkin.Particularly, the application relates to the composite sanitary napkin that a kind of manufacturing comprises main absorbent assemblies and basic module, and wherein main absorbent assemblies comprises main hygroscopic element.
Background of invention
In the simplest form of disposable sanitary napkin, but disposable sanitary napkin comprise place transflective liquid towards health lamella (being sometimes referred to as top flat) and liquid-tight hygroscopic element (being sometimes referred to as absorbent article core) between medicated clothing lamella (being sometimes referred to as egative film).Yes absorbs and hold menstruation and other vaginal discharge for the purpose of hygroscopic element.Towards the purpose of health lamella provide more or less comfort with contact dry and comfortable sensation with body surface, make the liquid freedom by entering hygroscopic element simultaneously.Towards the purpose of medicated clothing surface lamella is to prevent to discharge or make dirty the medicated clothing of user of the menstruation of overflowing or other vaginal discharge from hygroscopic element.Except above-mentioned three kinds of functional elements, disposable sanitary napkin also has the parts that these articles for use are bearing in close user crotch area usually, even when user moves, these articles for use also can be realized its expectation function most effectively.Sanitary towel has the bonding agent attachment that is used for these article are fastened to the interior crotch district of wearer's underwear usually.
Although known sanitary towel can realize its its intended purposes, to the hygroscopicity of body fluid, prevent protectiveness that the user underwear is made dirty and/or comfortableness of user health etc. one or more aspect, various traditional design all have specific shortcoming.
For disposable sanitary napkin, exist two types at present at least.One type characteristics are to be used for absorbing medium or higher menstrual flow.These sanitary towels have higher absorbability.Absorbability normally obtains by thicker and fluffy absorbent assemblies is set in sanitary towel.Although have the higher absorption ability, the bulkiness of absorbent assembly can be brought the sense of discomfort of wearing to a certain degree.The sanitary towel of second type is used for less or lower menstrual flow, is commonly referred to liner (pantiliner) or protective pad.Such sanitary towel is generally speaking thinner, but more soft and more comfortable usually than the sanitary towel of the first kind.Yet the sanitary towel of second type lacks the absorbability that first kind sanitary towel is had usually.
Having in the U.S. Patent No. of 1984 year January 10 day authorizing DesMarais 4,425,130 of commonly-assigned us open with the application the trial in a kind of single composite sanitary napkin of the advantages of above-mentioned two types of sanitary towels.The composite sanitary napkin of DesMarais comprises main menopad and the briefs-protecting piece that mutually combines in its corresponding end in the following manner, and promptly these two parts are basically along its whole total length freely-movable relatively.In use, the free-moving relatively effect between main menopad and the briefs-protecting piece is to keep main menopad near user crotch district, and briefs-protecting piece keeps linking to each other with the underwear of user simultaneously.Although the effect of main menopad near user crotch district that keep played in the relative freely-movable between main menopad and the briefs-protecting piece; if but the side of briefs-protecting piece is crossed in main menopad transverse movement, then make this freely-movable deficient in stability and the chance of making the user underwear dirty is provided.
Obtain the problem of composite sanitary napkin although solved some such as absorbent devices such as sanitary towels in the prior art, also do not propose to produce the method for composite sanitary napkin in mode of the present invention.Therefore, main purpose of the present invention is to provide a kind of method of making composite sanitary napkin.
Technical scheme
The present invention relates to the method that a kind of manufacturing comprises the composite sanitary napkin of main absorbent assemblies and basic module.But main absorbent assemblies is at longitudinal extension and comprise main hygroscopic element and the cover layer that is superimposed upon the transflective liquid on the main hygroscopic element, and main absorbent assemblies is superimposed upon on the basic module.But this method comprises the following steps: to wrap up main hygroscopic element and form main absorbent assemblies with the transflective liquid cover layer, and main hygroscopic element is arranged to provide first predetermined space; Advance main absorbent assemblies towards adapter section; Supply with basic module to adapter section; At least one upper edge in main absorbent assemblies and basic module applies connector and fixing main absorbent assemblies and basic module at least a portion longitudinally; By exerting pressure at least at the interval in conjunction with main absorbent assemblies and basic module.
The invention still further relates to a kind of composite sanitary napkin that comprises main absorbent assemblies and basic module.Main absorbent assemblies has vertical side and lateral ends, but and comprises main hygroscopic element and be superimposed upon the cover layer of the transflective liquid on the main hygroscopic element that main absorbent assemblies is superimposed upon on the basic module.Basic module has vertical side and lateral ends, but and comprise transflective liquid towards the health lamella, but bonded liquid-tight with transflective liquid towards the medicated clothing lamella towards the health lamella, but and transflective liquid towards health lamella and liquid-tight secondary hygroscopic element between the medicated clothing lamella.Main absorbent assemblies is fixed on the basic module by the connector that comprises first and second connectors.First connector comprises that longitudinally at least a portion is applied to the binding agent between main absorbent assemblies and the basic absorbent assemblies.Second connector is included in lateral ends and is applied to pressure on main absorbent assemblies and the basic absorbent assemblies.
Brief description of drawings
Although description of the present invention is to specifically note and to represent that clearly claimed claims of the present invention finish; but can believe, by can better understanding being arranged to the present invention, wherein below in conjunction with the description that accompanying drawing carried out; same label is used for representing identical part, wherein:
Fig. 1 is the top view of an embodiment of composite sanitary napkin of the present invention's manufacturing;
Fig. 2 is the cutaway view along composite sanitary napkin longitudinal centre line L intercepting shown in Figure 1;
Fig. 3 is the cutaway view along composite sanitary napkin transverse centerline intercepting shown in Figure 1;
Fig. 4 is the cutaway view of another embodiment of composite sanitary napkin of the present invention's manufacturing;
But Fig. 5 is the top view of the main hygroscopic element of unfolded transflective liquid cover layer and main absorbent assemblies;
Fig. 6 is the top view that comprises the composite sanitary napkin of connector;
Fig. 7 is the cutaway view along VII-VII line intercepting shown in Figure 1;
Fig. 8 is the cutaway view of the another embodiment of composite sanitary napkin of the present invention's production;
The composite sanitary napkin that Fig. 9 produces for the present invention is the cutaway view of an embodiment again;
The composite sanitary napkin that Figure 10 produces for the present invention is the top view of an embodiment again;
The composite sanitary napkin that Figure 11 produces for the present invention is the top view of an embodiment again;
Figure 12 is the partial view that sanitary towel is shown and is through the cross section of user medicated underpants on one's body;
Figure 13 is the schematic side view of illustrative processes embodiment of the present invention;
Figure 14 is the schematic side view that adds colored roll of the combining unit shown in Figure 13;
Figure 15 is the unitary local schematic side view that adds colored roll of exerting pressure shown in Figure 13;
Figure 16 is first partial plan layout by sanitary towel's assembling process of explained hereafter shown in Figure 13;
Figure 17 is second partial plan layout by sanitary towel's assembling process of explained hereafter shown in Figure 13;
Figure 18 is the schematic side view of another illustrative processes of the present invention embodiment;
Figure 19 is first partial plan layout by sanitary towel's assembling process of explained hereafter shown in Figure 180;
Figure 20 is second partial plan layout by sanitary towel's assembling process of explained hereafter shown in Figure 180;
Figure 22 is first partial plan layout by sanitary towel's assembling process of explained hereafter shown in Figure 21;
Figure 23 is second partial plan layout by sanitary towel's assembling process of explained hereafter shown in Figure 21.
The detailed description of invention
The present invention is for making the method for the adaptive composite sanitary napkin of health, and this sanitary towel has hygroscopicity to body fluid, prevent protectiveness that the user underwear is made dirty and to the comfortableness of user health." sanitary towel " used herein speech refers to by the women and wears near the external genitalia zone, and design is used for absorbing and holds various bodily exudates (as blood, menstruation and urine) and promptly abandon (promptly no longer wash, recovery, reuse) after once using." composite sanitary napkin " used herein speech refers to the sanitary towel that is made of a plurality of unitary part, and these parts are bonded with each other together and form overall structure.The part is positioned at wearer's vestibule and articles for use are also within the scope of the invention between the lip of part outside vestibule." external genitalia " used herein refers to the appreciable female private part from the outside, is limited to labium majus, nympha, clitoris, vestibule.
Before this method of description, the preferred embodiment of composite sanitary napkin is described earlier.With reference to Fig. 1-3, show a preferred embodiment of composite sanitary napkin 20.Composite sanitary napkin 20 has two surfaces, i.e. Body contact face or towards health face 20A, contact with clothing face or towards medicated clothing face 20B.Composite sanitary napkin 20 has first petiolarea 27, mesozone 28, second petiolarea 29, vertical side 16 and lateral ends 18.Composite sanitary napkin 20 has two centrages, i.e. longitudinal centre line L and transverse centerline.The vertical plane that " vertically " used herein speech refers in the plane of composite sanitary napkin with the wearer who stands that will wear composite sanitary napkin is divided into left and right sides two halves align line, axle or the direction of (as almost parallel)." laterally " or " side direction " is interchangeable, refers to and be approximately perpendicular to line, axle or direction longitudinally in the plane of composite sanitary napkin.
As Figure 1-3, composite sanitary napkin 20 comprises main absorbent assemblies 30 and secondary absorbent assemblies (basic module) 50, by connector 70 both is linked together.Main absorbent assemblies and secondary absorbent assemblies respectively have corresponding towards the health face with towards the medicated clothing face.Main absorbent assemblies 30 has the vertical side 24 and the lateral ends 25 of the periphery 26 that forms main absorbent assemblies 30 together.Main absorbent assemblies 30 also has longitudinal length PL, transverse width PW, thickness PT.Secondary absorbent assemblies 50 has the vertical side 21 and the lateral ends 22 of the periphery 23 that forms secondary absorbent assemblies 50 together.Secondary absorbent assemblies 50 also has longitudinal length SL, transverse width SW, thickness ST.As shown in Figure 1, preferably, composite sanitary napkin 20 has the flap 33 that stretch out from vertical side 21 of secondary absorbent assemblies 50 center 28 that is positioned at composite sanitary napkin.
Main absorbent assemblies 30 absorbs the composite sanitary napkin 20 of a large amount of body fluid of user discharge as the formation that its title hinted.Main absorbent assemblies 20 is normally orthogonal, and longitudinally centre line L is extended in the vertical.In a preferred embodiment, longitudinal length PL can be substantially equal to the longitudinal length SL of secondary absorbent assemblies 50.The transverse width PW transverse width SW than secondary absorbent assemblies 50 usually is narrow.Main absorbent assemblies 30 comprises main hygroscopic element (as absorbent article core 34), but the cover layer of transflective liquid (but as be superimposed upon the top flat 32 of the transflective liquid on the absorbent article core 34).
Top flat 32 is preferably submissive, touches up very soft, and to the wearer's skin nonirritant.And top flat 32 preferably can see through liquid, makes liquid can see through its whole thickness easily.A variety of materials may be used to make suitable top flat 32, for example woven or non-woven material; The polymeric material of porous formed thermoplastic film, plastic film and hydrogen reforming thermoplastic film one class; Porous foam; Netted thermoplastic film; And thermoplastic yarn.Suitable weave or non-woven material can be made by natural fiber (as the wood fiber or cotton fiber), synthetic fibers (as the polymer fiber of polyester, polypropylene or polyethylene fibre one class) or the combined material of natural and synthetic fibers.Preferred top flat comprises porous shaping membrane.Because porous shaping membrane can make body fluid pass through and not absorb, and reduce the trend of liquid, so this thin film is preferred for top flat by its backflow and the wearers skin of getting wet again.Therefore, keep dry and comfortable, thereby concerning the wearer, reduced the pollution of skin and bring more comfortable sensation with the formed film of Body contact surface.Suitable formed film is described in following patent: Decembers in 1975 were authorized the U.S. Patent No. 3,929,135 of Thompson on the 30th; Authorize people's such as Mullane U.S. Patent No. 4,324,246 April 13 nineteen eighty-two; Authorize people's such as Radel U.S. Patent No. 4,342,314 August 3 nineteen eighty-two; Authorized people's such as Ahr U.S. Patent No. 4,463,045 on July 31st, 1984; Authorized the U.S. Patent No. 5,006,394 of Baird on April 9th, 1991.Each patent is quoted as a reference herein.Concerning main absorbent assemblies, preferred top flat is the formed film of describing in above-mentioned one or more patent, at The Procter ﹠amp; Gamble Company of Cincinnati uses in the sanitary towel of the product that Ohio produces " DRI-WEAVE " by name.
The health thin film or the exposed surface of formed film top flat are hydrophilic, so that liquid passes top flat can be non-hydrophilic than body surface the time quickly, this has reduced menstrual fluid and has flowed out rather than infiltrate top flat and the probability that absorbed by absorbent article core from top flat.In a preferred embodiment, in the polymeric material of formed film top flat, add surfactant, such as submit to people's such as Aziz name and on May 23rd, 1993 disclosed PCT publication number be to describe among the WO93/09741, this patent is quoted as a reference herein.Another kind of scheme is, the body surface of top flat can by with as authorize the U.S. Patent No. 4,950 of Osbom in August 21 nineteen ninety, the surfactant described in 264 is handled and is made hydrophilicly, this patent is quoted as a reference herein.
In a preferred embodiment, as shown in Figure 4, top flat 32 comprises non-woven fleece 37 and the formed film 36 that is superimposed upon on the non-woven fleece 37.Formed film 36 has outside first surface 38, towards the second surface 39 of non-woven fleece 37 and absorbent article core 34 with extend to the perforate 42 of second surface 39 from first surface 38.Near the area of perforate 42 in the second surface 39 of absorbent article core 34 roughly less than the area of perforate 42 in first surface 38.Because generally greater than the perforated area of second surface 39, liquid can see through top flat and enter absorbent article core 34 perforated area of first surface 38 at an easy rate.Yet, this suppressed liquid that absorbent article core 34 absorbs from absorbent article core 34 to exosmosis and prevent to rehumidify wearer's skin.Non-woven fleece 37 is superimposed upon on the second surface 39 of formed film 36.When be shaped surface 36 and non-woven fleece 37 launched as illustrated in fig. 5, formed film 36 and non-woven fleece 37 were rectangle.Top flat 32 has vertical side 45 and lateral ends 46.Formed film 36 has corresponding vertical side 43 and lateral ends 44, and non-woven fleece 37 has corresponding vertical side 47 and lateral ends 48.Formed film 36 and non-woven fleece 37 can be superimposed in any suitable manner.Preferably, formed film 36 and non-woven fleece 37 along the longitudinal side 45 mutually combine by a plurality of discrete points 49.These discrete points can be by exerting pressure, execute heat, exert pressure and execute heat, and/or binding agent forms.Perhaps, formed film 36 and non-woven fleece 37 along the longitudinal side 45 whole length and be together with each other.
Absorbent article core 34 can be any compressible generally, docile, non-irritating to wearer's skin, any moisture-absorbent member that can absorb and hold body excretions.Can make absorbent article core 34 with the multiple imbibition material that is usually used in making disposable sanitary napkin and other disposable absorbent article.Other suitable hygroscopic material comprises pulverizes wood pulp (being commonly referred to as the gas felt); Wrinkling cellulose wadding; The cross-linked cellulosic of modification (as authorizing people's such as Young U.S. Patent No. 5,217,445 described materials on June 8th, 1993); Capillary tube fiber (promptly having the fiber described in the US Patent No 5,200,248 of authorizing people such as Thompson on April 6th, 1993) with fiber inner capillary tube; Moisture absorption foam (authorizing the material of describing in people's such as DesMarais the U.S. Patent No. 5,268,244 on the 7th) as U.S. Patent No. December in 5,260,345,1993 of authorizing people such as DesMarais on November 9th, 1993; The material of heat bonding air lay (as authorizing people's such as Richards U.S. Patent No. 5,607,414 described materials on March 4th, 1997); Form the polymeric gelling agent (, authorizing the material of describing in people's such as Lash the U.S. Patent No. 4,935,022 June 19 nineteen ninety) of hydrogel as the U.S. Patent No. 4,673,402 of authorizing people such as Weisman on June 16th, 1987; The moisture absorption sponge; The synthetic fiber of sample length that pulls; Polymer fiber; Peat bog; Or other any suitable material or the combination of these materials.The suitable frothy absorbent article core that contains is described in following patent: authorized people's such as DesMarais U.S. Patent No. 5,260,345 on November 9th, 1993; JIUYUE in 1992 were authorized people's such as Young U.S. Patent No. 5,147,345 on the 15th; JIUYUE in 1992 were authorized people's such as DesMarais U.S. Patent No. 5,194,720 on the 22nd; Authorized people's such as DesMarais U.S. Patent No. 5,198,472 on March 30th, 1993; Authorized people's such as DesMarais U.S. Patent No. 5,250,576 on October 5th, 1993.Other contains frothy absorbent article core and is described in European application 0293208B1.The absorbent article core that contains sponge is in U.S. Patent No. 3,512,530 and 3,954,493 and French Patent (FRP) 2,203,827 in be described.
Select for use the material of making absorbent article core 34 preferably submissive, soft, comfortable, compressible and have elasticity, adaptive and comfortableness with the health that increases main absorbent assemblies 30.Absorbent article core 34 is preferably compressible, thereby main absorbent assemblies 30 is out of shape under the suffered less power effect when normal the use.Except compressible, the material that constitutes absorbent article core 34 is preferably docile, thereby makes main absorbent assemblies 30 can be provided in labia and the perineum and comfortableness on every side.Although be compressible and docile under the power effect that female external genital organs applies in use, another point is also very important, and promptly main absorbent assemblies 30 has enough elasticity, thereby can not cave in enduringly under the situation that is subjected to the power of normally wearing.Preferably, main absorbent assemblies 30 has enough elasticity, and it is fitted with body contours and provides the tight of external genital that exposes with women's user to contact.The tight better liquid transfer that helps to provide from user to main absorbent assemblies that contacts of the external genital that exposes with women's user makes the liquid that can not by-pass flow and/or flows out main absorbent assemblies.Although the elastic characteristic of absorbent article core 34 can improve suitability, elasticity must balance each other with the needs of product, makes not only soft feel but also feel comfortable of user.
In a preferred embodiment, absorbent article core 34 comprises polymer and the hydrophilic fibre that forms hydrogel, such as the gas felt.Preferably, absorbent article core 34 comprises the polymer of 10% to 60% formation hydrogel.Absorbent article core 34 can comprise 40% to 90% gas felt.Preferably, absorbent article core 34 can comprise 50% to 85% gas felt.If necessary, absorbent article core 34 also comprises hydrophobic fiber.As shown in Figure 3, absorbent article core 34 is made substantial cylindrical, thereby makes main absorbent assemblies 30 also roughly cylindrical.Although absorbent article core shown in Figure 3 34 is an approximate circular cross-section, absorbent article core can be made multiple different shape, such as rectangle, triangle, ellipse, square, pentagon, U-shaped, Z-shaped etc.
Top flat 32 is around absorbent article core 34, shown in Fig. 2 and 3.The length of top flat 32 and width all equal the length and the width (as shown in Figure 5) of absorbent article core 34 correspondences.The transverse width of top flat 32 equals the twice of the transverse width of absorbent article core 34.This makes vertical side 45 of top flat 32 overlapping and as illustrated in fig. 3 around absorbent article core 34 below absorbent article core 34.Vertical side 45 of top flat 32 can various suitable means fix and keep this around shape.Suitable means include, but are not limited to binding agent, such as wire binding agent, helical form binding agent or spot bond agent.In the preferred embodiment shown in Fig. 3 and 5, line of adhesive 51 is applied on the vertical side 45 of top flat 32 along entire longitudinal length.Perhaps, apply alternate line of adhesive along entire longitudinal length.
Top flat 32 can link to each other with absorbent article core 34 by any way.The suitable method that top flat 32 is linked to each other with absorbent article core 34 includes but not limited to the binding agent between top flat 32 and absorbent article core 34, as binding agent jetting fluid, wire binding agent or spot bond agent.Perhaps, can on absorbent article core 34 or by any known means in this area, top flat 32 can be linked to each other with absorbent article core 34 by the fiber of absorbent article core 34 and top flat 32 being tangled, adopt the discrete single fusion bonded point in many places and top flat 32 being fused.For guaranteeing the better fluid transmission between top flat 32 and the absorbent article core 34, preferably, on the absorbent article core 34 below top flat 32 is fixed on whole common junction or interface basically continuously.By top flat 32 is fixed on the absorbent article core 34 basically continuously, top flat 32 has in use reduced and absorbent article core 34 isolating trend.Absorbent article core 34 with suppressed liquid is transferred to lower floor from top flat 32 absorbent article core 34 separating of top flat 32.Therefore, being fixed on the top flat 32 by for example binding agent towards bodyside of absorbent article core 34 will be if not being fixed on the top flat 32 towards bodyside of absorbent article core 34 will postpone liquid and be transferred to secondary absorbent assemblies 50 from absorbent article core 34.
Although under the state of pressurized not, main absorbent assemblies 30 can have any cross sectional shape usually, main absorbent assemblies 30 preferably has circle or elliptic cross-section.The length PL of main absorbent assemblies 30, width PW and thickness PT can be any suitable dimensions.Length PL is preferably 2 to 35 centimetres, and more preferably 10 to 35 centimetres, most preferably 20 to 35 centimetres.Preferably, the length PL of main absorbent assemblies 30 can be substantially equal to the length SL of secondary absorbent assemblies 50.Width PW is preferably 0.5 to 5 centimetre, is more preferably 1 to 5 centimetre, most preferably 2 to 4 centimetres.The width PW of main absorbent assemblies 30 can be less than the width S W of secondary absorbent assemblies 50.Thickness PT is preferably 0.2 to 2.0 centimetre, is more preferably 0.2 to 1.5 centimetre, and most preferred is 0.4 to 1.2 centimetre.Preferably, the thickness PT of main absorbent assemblies 30 can be greater than the thickness ST of secondary absorbent assemblies 50.The ratio of thickness PT and width PW or ratio (PT/PW) are 0.05 to 1.5.Preferably, ratio is 0.08 to 1.00.More preferably, ratio is 0.08 to be 0.5.
The thickness of secondary absorbent assemblies 30 is determined by following experiment.Adopt the comparator block gauge, particularly can be from Ozaki Manufacturing Co., the Peacock Gage Model No.307 that LTD buys.The comparator block gauge has circular comparator block rule foot made of aluminum, and the weight of rule foot is 9.0 grams, and contact surface is 16 square centimeters.The comparator block gauge returns to zero.60.0 the rustless steel counterweight of gram is placed on the main shaft that stretches out on the comparator block graduated disc.Rising comparator block rule foot, the medicated clothing of main absorbent assemblies faced down to be placed on the base plate, thereby just in time is positioned at the zone that will measure on the main absorbent assemblies when falling in the rule underfooting.Attempt smooth main absorbent assemblies or avoid occurring fold thereon.The rule foot descend lightly to main absorbent assemblies.Advising the thickness that reads the graduated disc of comparator block after foot contacts 5 to 10 seconds with main absorbent assemblies and determine main absorbent assemblies.
Main absorbent assemblies 30 is preferably more docile.Main absorbent assemblies is more docile can to fit into labial groove in use easily thereby preferably make.Have found that the main absorbent assemblies with width and/or thickness can cooperate comfily near the labia position.Although the width of above-mentioned main absorbent assemblies or thickness are greater than above-mentioned width or thickness, if having enough stickiness, they also can be engaged in the labial groove.Do not need whole main absorbent assemblies all to be engaged in the labial groove, preferably the part of main absorbent assemblies can be engaged in the labial groove.
Main absorbent assemblies 30 can comprise the element that some are optional.Main absorbent assemblies 30 can optionally comprise the elastic component with absorbent article core 34.Elastic component can be made of parts, also can comprise a plurality of independent parts.The suitable material that can be used as elastic component include, but are not limited to nylon, polypropylene, polyurethane, polyethylene, polyester synthetic rubber and other synthetic material (as formed film), natural material (as rubber, sponge etc.) or other during use normally wearing of sanitary towel prevent the suitable material that caves under the condition.Elastic component can be made different shape, as rectangle, triangle, ellipse, square, pentagon, U-shaped, Z-shaped etc.Elastic component can extend on the whole length of main absorbent assemblies 30.Elastic component also can only extend on a part of length of main absorbent assemblies 30.Elastic component can be positioned at the combination of first petiolarea 27, mesozone 28, second petiolarea 29 or above-mentioned zone.For example, elastic component can be positioned at first petiolarea 27 and second petiolarea 29, the mesozone 28 of main absorbent assemblies 30 or the mesozone 28 and the petiolarea 27,29 of main absorbent assemblies 30 of first petiolarea 27 of main absorbent assemblies 30 or second petiolarea 29, main absorbent assemblies 30.
Main absorbent assemblies 30 selectively has the absorbed layer between top flat 32 and absorbent article core 34.Absorbed layer can play and comprise and improve ejection on absorbent article core 34 and several effects such as absorption in the absorbent article core 34.By improving the absorption to ejection, absorbed layer distributes ejection more equably on whole absorbent article core.Absorbed layer can be made of several different materials, the weaving or the nonwoven web that comprise synthetic fibers such as polyester, polypropylene or polyethylene, the weaving or the nonwoven web that comprise cotton or cellulosic natural fiber, the weaving of the blend of this fibrid or nonwoven web, or the combination of other suitable material or material.Has the U.S. Patent No. 4 that the example of the sanitary towel of absorbed layer and top flat is being authorized Osbom, 950, the detailed description of advancing shape among the nominal disclosed PCT publication number WO93/11725 with people such as Cree on June 24th, 264 and 1993, above-mentioned patent citation as a reference.In a preferred embodiment, absorbed layer can combine any usual manner that wire side combines by being used for top flat, most preferably combines by the bond vitrified agent of describing in detail in above-mentioned Cree application.
With reference to figure 1-3A, composite sanitary napkin 20 required second portions are secondary absorbent assemblies (basic module) 50.Secondary absorbent assemblies 50 is roughly rectangle, and longitudinally centre line L is extended in the vertical.In a preferred embodiment, longitudinal length SL can be substantially equal to the longitudinal length PL of main absorbent assemblies 30.Transverse width SW can be wideer than the transverse width PW of main absorbent assemblies 30.Secondary absorbent assemblies 50 has vertical side 21 and lateral ends 22.In preferred embodiment shown in Figure 1, a pair of flap 33 from the mesozone the vertical side 21 in 28 protruding.But but secondary absorbent assemblies 50 preferably includes the top flat 52 towards health lamella or transflective liquid of transflective liquid, with top flat 52 bonded liquid-tight lamella or liquid-tight egative films 54 towards medicated clothing, the secondary hygroscopic element 56 between top flat 52 and egative film 54.
But top flat 52 can be the material of any transflective liquid that uses in articles for use such as sanitary towel, disposable diaper.It also can be the decide material of top flat 32 of absorbent assemblies 30 of any above-mentioned usefulness.Preferred top flat 52 comprises porous shaping membrane.Because porous shaping membrane can make body fluid pass through and not absorb, and reduce the trend of liquid, so this thin film is preferred by its backflow and the wearers skin of getting wet again.Therefore, keep dry and comfortable, thereby concerning the wearer, reduced the pollution of skin and bring more comfortable sensation with the formed film of Body contact surface.Suitable formed film is described in following patent: Decembers in 1975 were authorized the U.S. Patent No. 3,929,135 of Thompson on the 30th; Authorize people's such as Mullane U.S. Patent No. 4,324,246 April 13 nineteen eighty-two; Authorize people's such as Radel U.S. Patent No. 4,342,314 August 3 nineteen eighty-two; Authorized people's such as Ahr U.S. Patent No. 4,463,045 on July 31st, 1984; Authorized the U.S. Patent No. 5,006,394 of Baird on April 9th, 1991.Each patent is quoted as a reference herein.Concerning main absorbent assemblies, preferred top flat is the formed film of describing in above-mentioned one or more patent, and quilt is by The Procter ﹠amp; Gamble Company of Cincinnati, Ohio sells in sanitary towel with the name of an article " DRI-WEAVE ".
Hygroscopic element 56 can be any hygroscopic material that is generally used on the articles for use such as sanitary towel, disposable diaper.It also can be above-mentioned any material that is used for the absorbent article core 34 of main absorbent assemblies 30.In fact, most of body fluid is that absorbent article core 34 by main absorbent assemblies 30 absorbs and storage.A major function of secondary absorbent assemblies 50 be the protection user medicated clothing in case absorbed liquid make dirty, these liquid may from main absorbent assemblies 30, discharge or unexpectedly from main absorbent assemblies 30 by-pass flow come out.The total absorptivity of hygroscopic element 56 is slightly smaller than absorbent article core 34.Because absorbent article core 34 preferably absorbs most of or whole basically body fluid during use, its absorbability is if not also being higher than hygroscopic element 56 significantly more or less.Because the hygroscopic element 56 of secondary absorbent assemblies 50 is finished the function different with absorbent article core 34, hygroscopic element 56 can and most preferably than absorbent article core 34 thin and not as absorbent article core 34 fluffy.
Because hygroscopic element 56 has the requirement different with absorbent article core 34, it can be made of different materials.For example, single or multiple lift thin paper commonly used can be used to form hygroscopic element 56 in napkin or toilet paper.Preferably, hygroscopic element 56 is formed by 1 to 5 layer of thin paper.Existing direction comprises 1 or multilamellar as the well-content thin paper that makes us of hygroscopic element 56, quantitatively is 24 gram/rice 2To 48 gram/rice 2, apparent density is 0.10 gram per centimeter 2To 0.12 gram per centimeter 2, as the thin paper that the method for describing in the U.S. Patent No. 3,301,746 of authorizing Sanford and Sisson on January 3rd 1,1967 is made, this patent is quoted as a reference herein.Can and preferably use wet-strength resins and latex binder to provide added strength to the thin paper that uses in the hygroscopic element.The thin paper that adopts in the U.S. Patent No. 3,994,771 of authorizing people such as Morgan on November 30th, 1976 method described to make also can be preferably as hygroscopic element 56, and this patent is quoted as a reference herein.
Hygroscopic element 56 can have various suitable shapes, includes but not limited to ellipse, hourglass shape, splayed, asymmetric shape etc., and in preferred embodiment shown in Figure 1, hygroscopic element 56 is an essentially rectangular, by vertically side 55 and transverse edge 57 surround.Hygroscopic element 56 also has longitudinal length CL, transverse width CW and thickness C T.Longitudinal length CL can be shorter than longitudinal length PL and SL.Length C L can be about 10 centimetres to 33 centimetres, preferably 15 centimetres to 33 centimetres.Transverse width CW at least in mesozone 28 (when promptly using in the correspondence crotch district of crotch area) in sanitary towel wideer than the transverse width PW of main absorbent assemblies 30.More preferably, transverse width CW transverse width PW than main absorbent assemblies 30 on whole width is wide.Width C W can be 3 centimetres to 12 centimetres, is preferably 4 centimetres to 10 centimetres, more preferably is about 5 centimetres to 8 centimetres.Figure 10 and 11 shows the alternative shape of composite sanitary napkin and secondary hygroscopic element.Composite sanitary napkin 90 shown in Figure 10 has the narrowest part (as crotch portion) in center longitudinally, does not all have flap at two vertical sides.The secondary absorbent assemblies 95 of composite sanitary napkin 90 has the sticking patch type hygroscopic element 91 that roughly is positioned at the crotch district, as shown in figure 10.Sticking patch type hygroscopic element 91 is oval, has the wideest part in center longitudinally.The wideest part of hygroscopic element 91 preferably overlaps with the narrowest crotch district of composite sanitary napkin 90.Composite sanitary napkin 92 shown in Figure 11 also has back flap 94 except the flap 33 that is positioned at the crotch district.The secondary absorbent assemblies 96 of composite sanitary napkin 92 shown in Figure 11 has shaped absorbent element 93, and its crotch district at composite sanitary napkin 92 has the narrowest part.The narrowest part of shaped absorbent element 93 preferably overlaps with the crotch district of composite sanitary napkin 92.In two embodiment, in the crotch district of composite sanitary napkin, transverse width CW is the wideest like the transverse width PW of main absorbent assemblies 30.Preferably, width PW is less than about 80% of width C W.More preferably, width PW is less than about 70% of width C W.
Egative film 54 are liquid-tight (as menstruation and/or urines) although and can adopt other flexible liquid-tight material, preferably make by thin plastic sheeting." flexibility " used herein speech refers to submissive and is easy to meet and the general shape of human body and the material of profile.In use, egative film 54 places between hygroscopic element 56 and the user underwear.The effect of egative film 54 is to prevent to ooze out or unexpectedly other effusive ejection and hygroscopic element 56 absorbs and the ejection of storage contacts and the underwear of the user of making dirty from main absorbent assemblies 30.Therefore egative film 54 comprises weaving or non-woven material, such as the polymer thin film of polyethylene or polyacrylic thermoplastic film, such as the composite of the non-woven material of coated film.Preferably, egative film is the polyethylene film of thickness about 0.012 millimeter (0.5 mil) to 0.015 millimeter (2.0 mil).Exemplary polyethylene film is by Clopay Corporation of Cincinnati, the product that Ohio produces P18-0401 by name and Ethyl Corporation, Visqueen Division, Terre Haute, the product of the product that Indiana produces XP-39385 by name.Egative film is preferably through embossing and/or matt the processing so that the more seemingly outward appearance of cloth shape to be provided.In addition, egative film allows steam to overflow (promptly ventilative) from hygroscopic element 56, still stops ejection to flow through egative film 54 simultaneously.
The shape of secondary absorbent assemblies 50 can be essentially rectangular, by vertically side 21 and transverse end edge 22 are surrounded.Other suitable shape includes but not limited to ellipse, hourglass shape, splayed, asymmetric shape etc.Secondary absorbent assemblies 50 can have flap 33, and each flap 33 also crosses out thus near vertical side 21 of the secondary absorbent assemblies 50 that is positioned at center 28, as shown in Figure 1.The configuration of flap 33 is to be folded down the edge that covers crotch district wearer medicated underpants, thereby flap is arranged between the edge and wearer's thigh of wearer's underwear.Flap 33 plays two effects at least.At first, flap 33 preferably helps to prevent that by form the double-walled barrier layer along the medicated underpants edge wearer's health and underwear from being made dirty by menstrual fluid.Secondly, flap is preferably in towards the medicated clothing surface and is provided with attachment described in detail as follows, thus flap 33 can be turned back under medicated underpants and attached to medicated underpants towards garment side.In this way, flap 33 suitably is positioned at sanitary towel 20 in the medicated underpants.
In a preferred embodiment, flap 33 is made of egative film and egative film.In addition, flap 33 best laminations with secondary absorbent assemblies 50 are one.In other words, the top flat 52 of secondary absorbent assemblies 50 and egative film 54 are can be only laterally protruding and form flap 33 from vertical side 21.Yet flap 33 is not to be integral with secondary absorbent assemblies 50, but can be the individual component that is fixed on the secondary absorbent assemblies 50.In addition, flap 33 can comprise a single substrate or other lamination configuration.Preferably, flap 33 has liquid-tight egative film with make dirty the edge of wearer's medicated underpants of the ejection that prevents to arrive flap.
In addition, flap 33 preferably is provided with hygroscopic piece, on the position that exceeds wearer's medicated underpants.Theoretically, have only very a spot of menstruation meeting to arrive flap 33, therefore, in flap 33, only need very a spot of hygroscopic material.Yet flap 33 preferably has at least one quantitative hygroscopic material and further flows to not protected zone so that prevent to arrive the ejection of flap 33.Hygroscopic material can be the extension of thin paper or hygroscopic element 56.Preferably, the hygroscopic material in the flap 33 has bigger flexibility.
The sanitary towel that a large amount of having is suitable for the flap 33 that the secondary absorbent assemblies 50 with composite sanitary napkin 20 uses has been described: authorized the U.S. Patent No. 4,687,478 of VanTilburg on August 18th, 1987 in following patent; Authorized the U.S. Patent No. 4,589,876 of Van Tilburg on May 20th, 1986; Authorized the U.S. Patent No. 4,608,047 of Mattingly on August 26th, 1986.These patents are quoted as a reference herein.Optional is that secondary absorbent assemblies 50 can comprise the element of the side of nature parcel wearer medicated underpants.Sanitary towel with the element that is suitable for the wearer of the parcel naturally medicated underpants side that the secondary absorbent assemblies 50 with composite sanitary napkin 20 uses discloses in following patent: Decembers in 1996 were authorized people's such as Lavash U.S. Patent No. 5,584,829 on the 17th; JIUYUE in 1996 were authorized people's such as Weinberger U.S. Patent No. 5,558,663 on the 24th.The content of above-mentioned patent disclosure is quoted as a reference herein.
Preferably, secondary absorbent assemblies 50 has supporting member or attachment, such as binding agent attachment 58 and 62.Binding agent attachment 58 provides composite sanitary napkin 20 is fixed on mechanism on user underwear or the medicated underpants.Binding agent attachment 62 is provided for the flap 33 of composite sanitary napkin 20 is fixed to the mechanism towards garment side of medicated underpants, thereby flap 33 can be gone back under the underwear.Therefore, all or part of of the outer surface of egative film 54 or medicated clothing surface can be coated with binding agent.In a preferred embodiment, at least the part of binding agent 58 on the medicated clothing face that vertically is arranged on egative film 54 of secondary absorbent assemblies 50, and can for, but be not limited to longitudinally linear.Binding agent 62 can be arranged on the medicated clothing face of egative film 54 of flap 33, can for, but be not limited to rectangle.Any binding agent and the glue that are used for this area of this purpose adopting can be as binding agents herein, and wherein pressure sensitive adhesives is preferred.Suitable binding agent is Century Adhesives Corporation of Columbus, Century A-305-IV and National Starch and Chemical Company of Bridgewater that Ohio produces, the Instant Lock 34-2823 that NJ produces.Suitable binding agent securing member is in U.S. Patent No. 4,917, is described in 697.
Pressure sensitive adhesives usually covers with tearable release liner 59 and 63, so that prevent that binding agent is dry or be bonded at before use on the panty crotch surface in addition.Suitable release liner is described in above-mentioned U.S. Patent No. 4,917,697.Can use any release liner that is commercially available that is applicable to this purpose herein.The non-limiting example of suitable release liner is Akrosil Corporation ofMenasha, BL30MG-A Silox E1/0 and BL30MG-A Silox 4P/0 that WI produces.Composite sanitary napkin 20 is to use like this: remove release liner 59 and 63, then composite sanitary napkin 20 is placed panties and binding agent 58 is contacted with panties with binding agent 62.Binding agent 58 and 62 keeps the position in panties in sanitary towel's use.
The top flat 52 and the egative film 54 of secondary absorbent assemblies 50 can be bonded with each other by any suitable manner.Top flat 52 can engage with egative film 54 or be bonded on the egative film in removing the extra-regional All Ranges that has hygroscopic element 56 along periphery 64.In the zone that has hygroscopic element 56, top flat 52 and egative film 54 engage with hygroscopic element 56 separately.Suitable manner includes but not limited to exert pressure, execute heat, Shi Re and exert pressure, or applies binding agent, as wire binding agent, helical form binding agent or spot bond agent.In preferred embodiment shown in Figure 1, top flat 52 and egative film 54 are bonded together by executing heat along the periphery 64 of sanitary towel 20.
Length SL, width S W and the thickness ST of secondary absorbent assemblies 50 can be any suitable dimensions.Length SL is preferably 5 to 35 centimetres, and more preferably 10 to 35 centimetres, most preferably 20 to 35 centimetres.Preferably, the length SL of secondary absorbent assemblies 50 can be substantially equal to the length PL of main absorbent assemblies 50.Width S W is preferably 4 to 13 centimetres, is more preferably 5 to 11 centimetres, most preferably 6 to 9 centimetres.Secondary absorbent assemblies 50 is preferably thin and soft.Thickness ST is preferably 0.1 to 2.0 centimetre, is more preferably 0.1 to 1.0 centimetre, and most preferred is 0.1 to 0.4 centimetre.Preferably, the thickness ST of secondary absorbent assemblies 50 can be less than the thickness PT of main absorbent assemblies 50.
Secondary absorbent assemblies (basic module) 50 can randomly be made and not contain hygroscopic element 56.Even owing to be not all also to be that most of body fluid is preferably absorbed and storage by the absorbent article core 34 of main absorbent assemblies 30, the medicated clothing of 50 user that need protection of basic module is avoided oozing out or unexpectedly polluting from the small amount of liquid of main absorbent assemblies 30 by-pass flows from main absorbent assemblies 30.Therefore, because the flowing fluid ratio of the desired amount that contact with basic module is less, basic module 50 does not need therein storage of liquids and prevents their pollution user medicated clothings.
Form composite sanitary napkin 20, main absorbent assemblies 30 and secondary absorbent assemblies are engaged by the connector of 70 expressions in Fig. 1-3,6 and 7.Connector 70 plays main absorbent assemblies 30 is become composite sanitary napkin 20 with secondary absorbent assemblies 50 with enough toughness combination, thereby main absorbent assemblies 30 and secondary absorbent assemblies 50 in use can not disconnect.Can adopt any connected mode, connect as binding agent connection, pressure connection, thermally coupled or ultrasound wave.Main absorbent assemblies 30 can be connected with described secondary absorbent assemblies 50 along whole total length by connector 70.Perhaps, main absorbent assemblies 30 can be connected with described secondary absorbent assemblies 50 along total length intermittently.
In the preferred embodiment shown in Fig. 1-3,6 and 7, main absorbent assemblies 30 is connected with described secondary absorbent assemblies 50 by the connector 70 that comprises first connector 72 and second connector 74.
First connector 72 is included in a plurality of discrete pressure of naming a person for a particular job and is applied on eclipsed lateral ends 22 and 25.By exerting pressure on eclipsed lateral ends 22 and 25, the top flat 32 of main absorbent assemblies 30, the top flat 52 of secondary absorbent assemblies 50 and egative film 54 are fixed with each other in eclipsed lateral ends 22 and 25 places.Alternative is that first connector 72 can be included in a plurality of discrete points, line or face place and execute heat.Can well multilamellar be bonded together although execute heat, because layer thickening is feasible poor with the heat exchange effect between the layer of each layer joint.In preferred embodiment shown in Figure 2 because vertical side 45 of the top flat 32 of main absorbent assemblies 30 is overlapped absorbent article core 34 times, comprise three layers of top flat 32, one deck top flat 52 and one deck egative film 54 totally 5 layers be bonded together.Have the two-layer of formed film 36 and non-woven fleece 37 if top flat 32 comprises, then eight layers must be bonded together as shown in Figure 7.Because the aspect thickening, preferably exerting pressure or exerting pressure is bonded together these aspects with heat.Perhaps, first connector 72 can be included in apply binding agent between the aspect or exert pressure, the combination of heat and binding agent.
Second connector 74 is included between main absorbent assemblies 30 and the secondary absorbent assemblies 50 and applies binding agent, such as helical form binding agent, wire binding agent or spot bond agent.As shown in Figure 6, in a preferred embodiment, between main absorbent assemblies 30 and secondary absorbent assemblies 50, apply continuously as the helical form binding agent of second connector 74.When requiring main absorbent assemblies 30 and secondary absorbent assemblies 50 along whole total length when fixed with each other, can prevent that absorbent assemblies 30 and 50 is fixing intermittently and preferably adopt the helical form binding agent owing to apply the helical form binding agent.The transverse width PW that main absorbent assemblies 30 and secondary absorbent assemblies 50 fixed width AW can be compared to main absorbent assemblies 30 most is narrow.Preferably, width AW is less than 70% of width PW.This can be so that main absorbent assemblies 30 be consistent with female body shape and female body motion.
Composite sanitary napkin 20 can have various alternatives and/or selection.Main absorbent assemblies 30 can comprise liquid barrier layer 35 as shown in Figure 8.Liquid barrier layer 35 is positioned on half bottom surface of absorbent article core 34, flows to secondary absorbent assemblies 50 to prevent liquid from absorbent article core 34.Liquid barrier layer 35 is often stored the liquid that is absorbed in the absorbent article core 34, and is made of the material as described below that the impenetrable liquid egative film with secondary absorbent assemblies 50 has a same performance.Liquid barrier layer 35 can be along extending with the whole length of main absorbent assemblies 30, or only extend in the mesozone 28 of main absorbent assemblies 30, or extend at first petiolarea 27 and second petiolarea 29.
Another kind of scheme is, but the top flat 32 of main absorbent assemblies 30 can comprise the lamella with transflective liquid district 76 and liquid-tight tagma 78.When top flat 32 is made of formed film, but transflective liquid district 76 can be an aperture area, and liquid-tight tagma 78 can be non-aperture area.As shown in Figure 9, but the transflective liquid district 76 of top flat 32 can be positioned on half bottom surface of absorbent article core 34, flow to secondary absorbent assemblies 50 to prevent liquid from absorbent article core 34.But transflective liquid district 76 is stored in the liquid that absorbs in the absorbent article core 34.
Composite sanitary napkin 20 can be tensile.The discrete component of main absorbent assemblies 30 and secondary absorbent assemblies 50 can be the element formation by extending (preferably stretchable), is tensile in the vertical when composite sanitary napkin 20 uses particularly.Preferably, composite sanitary napkin 20 can extend in the vertical and approximately not be subjected to 15% to 40% of tensile elongation.This extensibility provides suitability, the comfortableness in the better use and has reduced pollution when composite sanitary napkin is fixed on wearer's underwear.Preferably, secondary absorbent assemblies 50 comprises the element that also can extend in the horizontal when using composite sanitary napkin 20.Preferably, composite sanitary napkin 20 can extend in the horizontal and approximately not be subjected to 15% to 40% of tensile elongation.But the top flat 32 that is used for main absorbent assemblies 30 and secondary absorbent assemblies 50 can comprise the polymerization wire side of elasticity, three-dimensional transflective liquid, as the U.S. Patent No. 5 of authorizing people such as Curro on November 22nd, 1994, wire side described in 366,782, this patent is quoted as a reference herein.The adhesive membrane of particularly preferred extending egative film for extending, as Findley AdhesivesCompany of Wauwatosa, the Formula#198-388 that Wisconsin produces.Authorize people's such as Osbom U.S. Patent No. 5,611,790 and on February 4th, 1993 on March 18th, 1997 and described sanitary towel among the nominal disclosed PCT application WO93/01786 with people such as Osbom with extendible member.The content of above-mentioned patent disclosure is quoted as a reference herein.
Composite sanitary napkin 20 can fit with female body.Because the size and dimension of main absorbent assemblies 30 makes it to cooperate near the labia position, main absorbent assemblies 30 is positioned at labia at least in part.As shown in figure 10, wear by the women and during by underwear 82 supporting, the part of main absorbent assemblies 30 is preferably in use near the labia position when composite sanitary napkin 20.In contrast, secondary absorbent assemblies 50 major function is that the medicated clothing of protection user is avoided oozing out or making dirty from the absorption liquid that the by-pass flow unexpectedly of main absorbent assemblies 30 is come out from main absorbent assemblies 30.Secondary absorbent assemblies 50 is preferably away from health, thus make secondary absorbent assemblies 50 not with Body contact.The size and dimension of the shape of main absorbent assemblies 30 can make secondary absorbent assemblies 50 and health away from and between health and secondary absorbent assemblies 50, keep gap 80.This makes vertical side of secondary absorbent assemblies 50 keep clean.
Composite sanitary napkin 20 can absorb body fluids.The total absorptivity of main absorbent assemblies 30 should be complementary with the expection ejection load of composite sanitary napkin 20.In addition, the wettability power of absorbent article core 34 can be different to adapt to the different wearer of the expection discharge liquor scale of construction.Wearing the discharge liquor scale of construction of expecting in the normal cycle of sanitary towel is 2 to 20 grams.When composite sanitary napkin 20 be exposed to this 2 to 20 the gram between liquid load the time, main absorbent assemblies 30 actual wear can absorb under the state 2 to 20 the gram between liquid 80%.In addition, when composite sanitary napkin 20 be exposed to above normal amount 20 to 30 the gram between liquid load the time, main absorbent assemblies 30 can absorb 20 to 30 the gram between liquid 70%.Because when sanitary towel uses on female body, main absorbent assemblies 30 has at least 70% the ability that absorbs load liquid between 2 to 30 grams, can make the side of secondary absorbent assemblies 50 keep clean so have the main absorbent assemblies 30 of this ability.This provides the presentation that can see for consumer, has strengthened consumer for the self-confidence of sanitary towels on hygroscopicity and leakage performance.
Main absorbent assemblies 30 preferably includes the polymer that forms hydrogel, to strengthen the absorbability of main absorbent assemblies 30.The polymer of the formation hydrogel that main absorbent assemblies 30 is contained is approximately many, and the wettability power of then main absorbent assemblies 30 is strong more.Because form polymer swelling after absorbing liquid of hydrogel, main absorbent assemblies 30 laterally and on the thickness direction is expanding.The expansion of main absorbent assemblies 30 makes applying and adaptive more between winner's absorbent assemblies 30 and the female body.Yet the polymer of too much formation hydrogel causes the gel blockage problem, causes moisture absorption to reduce.The more important thing is that the polymer that too much forms hydrogel makes 30 one-tenth right cylindrical of main absorbent assemblies when absorbing liquid, bending force that need not be bigger just can not be crooked easily.In this case because the lateral ends of composite sanitary napkin 20 trend is away from health, then main absorbent assemblies 30 can not with the curve fitting of female body.Therefore, from the angle of absorbability, stickiness, comfortableness and the suitability of sanitary towel with main absorbent assemblies, an amount of hydrogel is preferred.
Be desirable to provide a kind of composite sanitary napkin, its main absorbent assemblies has different width and thickness in its whole length.For example, main absorbent assemblies is thicker in the mesozone, and is then opposite at petiolarea.Perhaps, main absorbent assemblies is thinner in the mesozone, and is then opposite at petiolarea.
With reference to Figure 13-17, show the technological process 200 of preferred simplification, the assembling of composite sanitary napkin shown in Figure 4 20 is described.As shown in figure 13, the technology 200 of manufacturing composite sanitary napkin 20 comprises following several steps: main absorbent assemblies manufacturing process (main absorbent assemblies is made section) 202; Secondary absorbent assemblies manufacturing process (secondary absorbent assemblies is made section) 204; The clustered operation of main absorbent assemblies and secondary absorbent assemblies (combined segment) 206; And cutting action (cut length) 208.
Main absorbent assemblies manufacturing process 202 comprises that also top sheet materials supplies with operation (supplying with section) 210; Main hygroscopic element supply operation (supply section) 212; Parcel operation (parcel section) 214; With propelling operation (advancing section) 216.
Supplying with section 210, formed film wire side 220 and nonwoven web 222 are supplied with towards top flat joint unit 228 continuously from donor rollers 224 and 226 respectively, make nonwoven web 222 be superimposed upon on the formed film wire side 220.Successive formed film wire side 220 and successive nonwoven web 222 engage by joint unit 228 and form successive top flat wire side 230.As shown in figure 14, joint unit 228 has and adds colored roller 232 and anvil roller 234.Add colored roller 232 have on its surface a series of add spend the projection 236.Add in colored roller 232 and the anvil roller 234 one or both predetermined pattern elements by nip between roller 232 and 234 towards the other side's bias voltage.As shown in figure 14, by progressive forming thin film wire side 220 and continuous nonwoven web 222 being fed to the nip of joint unit 228, vertical side 45 of two continuous top flat wire sides 230 in wire side edge engages (shown in Fig. 5 and 16) by pressing on dispersive point 49.The pattern of the projection 236 of the pattern respective roller 232 of spaced point 49.Contact between progressive forming thin film wire side 220 and the continuous nonwoven web 222 makes the wire side that engages stably transmit.Perhaps, the binding agent such as wire binding agent, helical form binding agent or spot bond agent, ultrasound wave joint, thermal bonding etc. can be used for bonding and molding thin film wire side 220 and nonwoven web 222.For before providing independent absorbent article core 242 on the continuous top flat wire side 230, top flat wire side 230 is supplied with towards the first binding agent section of applying 238 subsequently continuously, in the first binding agent section of applying 238, alternate helical form binding agent 240 be applied to continuous top flat wire side 230 towards the absorbent article core side, as shown in figure 16.Perhaps, the binding agent that is applied on the continuous top flat wire side 230 can use spot bond agent, sprinkling binding agent, wire binding agent or other known method to replace, as long as preferred binding agent size can be provided on bonding agent width and length direction.Preferably, the binding agent width is compared the preferably narrower size of maintenance with the width of absorbent article core 242.
Top flat wire side 230 supplies to main hygroscopic element supply section 212 by upwards changing direction continuously.Supply section 212 comprises cloud chamber 246 and lays drum 244, contains the polymer that forms hydrogel and the independent absorbent article core 242 of fiber with formation.The mixture that is sent to the polymer of the formation hydrogel of laying drum 244 and fiber from cloud chamber 246 is by means of laying the absorbent article core 242 that vacuum equipment 248 on the drum 244 forms independent shapes, and vacuum furnace 248 has the independent recess 250 of scheduled volume on its surface.When the independent absorbent article core 242 of each on laying drum 244 arrives contact point with top flat wire side 230 continuously, independent absorbent article core 242 is sent to the surface of continuous top flat wire side 230 from laying drum 244, shown in Figure 13 and 16, on this surface, applied alternate helical form binding agent 240 in advance.Transmit independent absorbent article core 242 make its towards bodyside towards continuous top flat wire side 230, it roughly makes progress towards secondary absorbent assemblies 242 sides (referring to Figure 16).The vacuum equipment 252 that this transmission is passed through to transmit on the drum 254 is realized, and is dispelled the air of laying on the drum 248 at the continuous top flat wire side 230 of band helical form binding agent 240 when the surface of transmitting drum 254 is moved.In addition, when continuous top flat wire side 230 when transmitting the surface operation of drum 254, top flat wire side 230 approximate horizontal ground changes direction continuously, thereby makes discrete top flat wire side 230 keep resting on the surface of continuous top flat wire side 230 by means of its weight at an easy rate.When independent absorbent article core 242 is sent on the continuous top flat wire side 230, form the first interval S between independent absorbent article core 242 in front and the follow-up independent absorbent article core 242.Be fixed on the continuous top flat wire side 230 and by the independent absorbent article core 242 of its carrying calender roll 260 by having the fixed interval (FI) subsequently.Before packaging process, independent absorbent article core 242 is pressed into homogeneous thickness by calender roll 260.
Perhaps, continuous top flat wire side 230 can supply to the point between the calender roll 260 and the second binding agent section of applying 262 after the first binding agent section of applying 238 applies binding agent.In this case, top flat wire side 230 can be by main hygroscopic element supply section 212 continuously.Independent absorbent article core 242 can meet with continuous top flat wire side 230 towards calender roll 260 propellings and the point that will carry after calender roll.
Cloud chamber 246 can only supply to fiber and lay drum 244, and absorbent article core 242 includes only fiber and make independently.Perhaps, if necessary, the polymer that forms hydrogel can add the independent absorbent article core 242 that includes only fiber after main hygroscopic element supply section 212.The polymer that forms hydrogel can (before being folded section 264) add before the parcel operation.
After independent absorbent article core 242 pressurizeds, in the parcel operation, supply with to the second binding agent section of applying 262 with the continuous top flat wire side 230 of independent absorbent article core 242.In the second binding agent section of applying 262, line of adhesive 51 (referring to Fig. 4,5 and 16) is applied on the vertical side 45 of continuous top flat wire side 230 continuously.Top flat wire side 230 supplies to traditional folded section 264 subsequently continuously.In folded section 264, continuously vertical side 45 of top flat wire side 230 upwards fold into independent absorbent article core 242 on basic module side 243, and each vertical side is overlapped each other.Therefore, top flat wire side 230 wraps up independent absorbent article core 242 continuously.Outlet in folded section 264, line of adhesive 51 makes 230 generations of folding continuous top flat wire side forever be connected with keeping by the two vertical sides 45 that connect the continuous top flat wire side 230 that has independent absorbent article core 242 in it continuously, and form continuous main absorbent assemblies wire side 266, as shown in figure 16.For this operation, this permanent connection is preferably in the stable dimensions that keeps continuous main absorbent assemblies wire side 266 when being sent to the downstream.Perhaps, any known method of attachment be can adopt,, binding agent or helical form binding agent sprayed as the spot bond agent.
Continuous main absorbent assemblies wire side 266 is sent to the downstream by horizontal drive conveyer 216 (promptly advancing section) subsequently.These drive conveyers 216 can drive conveyer or fixed plate replaces by vacuum, stable as long as tubulose wire side stress keeps.If the distance between parcel section 214 and the combined segment 206 is shorter, advance section 216 just optional.In this case, parcel section 214 can comprise the propelling section and continuous main absorbent assemblies wire side 266 is advanced into combined segment 206.
Also another comprises that secondary absorbent assemblies material is supplied with operation (material is supplied with section) 270 and in conjunction with operation (adapter section) 272 in secondary absorbent assemblies (basic module) manufacturing process 204.
Supply with section 270 at material, top flat wire side 274, secondary hygroscopic element wire side 276 and egative film wire side 278 are supplied with to adapter section 272 continuously by donor rollers 280,282 and 284 respectively.Egative film wire side 278 towards the 3rd binding agent sections of applying 286 are supplied with continuously, at the 3rd binding agent section of applying 286 places, interrupted wire binding agent before the continuous egative film wire side 278 of supply and secondary hygroscopic element 276, be applied to continuous egative film wire side 278 towards secondary hygroscopic element side.Perhaps, the binding agent that is applied on the continuous egative film wire side 278 can be replaced by spot bond agent, sprinkling binding agent, helical form binding agent or any method well known in the art.As mentioned above, in a preferred embodiment, secondary hygroscopic element 276 can be a tissue layers.In preferred embodiment shown in Figure 13, secondary hygroscopic element 276 can be prepared into the continuous wire side of web-like.Another kind of scheme is that secondary hygroscopic element 276 can be supplied with in the mode of independent hygroscopic element.As shown in figure 13, secondary hygroscopic element wire side 276 supplies to traditional cutting and separates section 290.Cutting and separating section, secondary hygroscopic element wire side 276 is cut into independently secondary hygroscopic element 290, provides second to be spaced apart T (referring to Figure 16) between secondary hygroscopic element 290 of last independence and follow-up secondary hygroscopic element 288.Independent hygroscopic element 288 is fixed thereon with being placed on the continuous egative film wire side 278 and by the wire binding agent that applies.Independent secondary hygroscopic element 288 is inserted continuous top flat wire side 274 and continuously between the egative film wire side 278 and form successive lamination wire side 292 subsequently, and this lamination wire side 292 comprises continuous top flat wire side 274, egative film wire side 278 and independent secondary hygroscopic element 288 continuously.Preferably, before independent secondary hygroscopic element 288 is inserted between continuous top flat wire side 274 and the continuous egative film wire side 278, can apply binding agent on the top flat wire side 274 continuously, such as wire binding agent, spot bond agent, sprinkling binding agent or helical form binding agent.
After forming continuous lamination wire side 292, it is by adapter section 272.Adapter section 272 is in top flat wire side 274 and the permanent connection of formation between the egative film wire side 278 continuously continuously, to prepare successive secondary absorbent assemblies wire side 293.Herein can adopt any known mode in conjunction with operation, for example shown in Figure 16, apply heat and form heat bonding 291 along the periphery of secondary absorbent assemblies 50.Perhaps, this adhering method comprises and exerts pressure or execute heat and exert pressure.In addition, binding agent can be used as that the connection means are applied to continuous top flat wire side 274 and/or continuously on the egative film wire side 278.Continuous secondary absorbent assemblies wire side 293 drives conveyer by means of vacuum subsequently and is sent to the downstream.As shown in figure 13, because continuous main absorbent assemblies wire side 266 is in service, it is always supine towards secondary absorbent assemblies side, and continuous secondary absorbent assemblies wire side 293 advances from the top with respect to the machine direction that transmits wire side 266 towards continuous main absorbent assemblies wire side 266.Therefore, continuous secondary absorbent assemblies wire side 293 covers the vertical side 45 that links to each other of continuous main absorbent assemblies wire side 266.
After adapter section 272, release liner 59 shown in Figure 4 and 63 can be applied on the continuous egative film wire side 278 of secondary absorbent assemblies wire side 293. Release liner 59 and 63 can have binding agent on the surface of continuous egative film wire side 278, such as the straight line binding agent.When tearing release liner 59 and 63 off when using, binding agent is retained on the egative film.
Clustered operation 206 comprises that also binding agent applies operation (the binding agent section of applying) 294 and pressure applies operation (the pressure section of applying) 296.
Apply in the operation 294 at binding agent, when continuous main absorbent assemblies wire side 266 was driven conveyer 295 transmission by acclivitous vacuum, continuous helical shape binding agent 74 was applied on the continuous main absorbent assemblies wire side 266 by the 4th binding agent section of applying 294.Perhaps, can use any known method, as wire binding agent, spot bond agent or sprinkling binding agent.Preferably, helical form binding agent 74 is applied to binding agent and is clipped between continuous main absorbent assemblies wire side 266 and the continuous secondary absorbent assemblies wire side 293.Preferably, the width of helical form binding agent 74 does not extend beyond the width PW of continuous main absorbent assemblies wire side 266.Perhaps, binding agent 74 can be applied to (being the top flat side) under the continuous secondary absorbent assemblies wire side 293.
Continuous main absorbent assemblies wire side 266 and continuous secondary absorbent assemblies wire side 293 advance towards pressure roller 298 subsequently, and at pressure roller 298 places, two wire sides 266 and 293 are together with each other by helical form binding agent 74 and form successive composite sanitary napkin wire side 300.When wire side 266 and 293 met at pressure roller 298 places, at least a portion of the first interval S between the independent main absorbent article core 242 was configured to overlapped as illustrated in fig. 16 with second interval T of independent secondary hygroscopic element 288.Lap X is set makes continuous composite sanitary napkin wire side 300 have the zone that no hygroscopic element exists, and give composite sanitary napkin 20 lateral ends 18.
Composite sanitary napkin wire side 300 is supplied with towards the pressure section of applying 296 subsequently continuously, as shown in figure 13.The pressure section of applying 296 is laterally exerted pressure to lap X on edge, dispersive point 72 places, thereby continuous main absorbent assemblies wire side 266 and continuous secondary absorbent assemblies wire side 293 are combined.As shown in figure 15, the pressure section of applying 296 has and adds colored roller 302 and anvil roller 304.Add colored roller 302 have on its surface a series of add spend the projection 306.Add in colored roller 302 and/or the anvil roller 304 one or the nip of both between roller 302 and 304 and press to the other side with the predetermined colored element load that adds.By continuous composite sanitary napkin wire side 300 being supplied to the nip of the pressure section of applying, at dispersive point 72 places two wire sides 266 and 296 are combined by exerting pressure.The pattern of dispersive point 72 is corresponding to the pattern of projection 306 on the roller 302.This combination of (being lap X) preferably has enough peel strengths (as 222 pairs of nonwoven web 222 surfaces of nonwoven web) at lateral ends 18 places.Preferably, this peel strength is to greater than 100 gram/inches.This can reach by following operation: 1) at least 60,000psi/ nip pressure, 2) 70 ℃-90 ℃ roll surface temperature, 3) amount of interference of two rollers is 0.05 millimeter to 0.08 meter.Preferably the speed controlling of continuous composite sanitary napkin wire side 300 is at 110 meters/minute-155 meters/minute or higher.Alternative is that the roller superficial velocity that adds colored roller 302 and anvil roller 304 can differ from one another.In addition, the roller superficial velocity that adds colored roller 302 and anvil roller 304 can be omited fast (as 0% to 3%) than the speed of continuous composite sanitary napkin wire side 300.Alternative is that binding agent 241 can be applied on the first interval S, so that the peel strength between enhancing 222 pairs of non-woven fleece 222 surfaces of non-woven fleece as shown in figure 16.Before continuous top flat wire side 230 was folding, this binding agent can be applied on the point identical with the second binding agent section of applying 262.Because continuous main absorbent assemblies wire side 266 and continuous secondary absorbent assemblies wire side 293 have identical stress by continuous propelling before all being arranged in combination, even composite sanitary napkin can not bend when cutting into independently sanitary towel yet.Perhaps, the change that needs, sanitary towel can be owing to the wire side 266 with different stress and 293 and crooked.
Cutting action 208 can comprise cutter 302.Composite sanitary napkin wire side 300 is advanced to cutter 302 and is cut into the independent segments (being independent composite sanitary napkin 20) with net shape continuously.Cutter 302 can be the conventional cutter with stamping knife.Perhaps, can adopt any other known method to cut.
Can adopt the multiple alternative approach that is used for above-mentioned operation.Can after clustered operation 206 He before the cutting action 208, carry out in conjunction with operation 272.In this case, top flat wire side 274, secondary hygroscopic element 288 and egative film wire side 278 can be by the temporary transient combinations of any suitable mode, such as binding agent before clustered operation 206.Independent secondary absorbent assemblies 288 can be arranged on the top flat wire side 274, rather than is arranged on the egative film wire side 278.
With reference to Figure 18-20, this be another assembling that composite sanitary napkin 20 is shown preferred, add flower process flow process 400.As shown in figure 18, the technology 400 of manufacturing composite sanitary napkin 20 comprises following several steps: main absorbent assemblies manufacturing process (main absorbent assemblies is made section) 202; Secondary absorbent assemblies material is supplied with operation (secondary absorbent assemblies is supplied with section) 402; Clustered operation (combined segment) 404; And cutting action (cut length) 208.Main absorbent assemblies manufacturing process 202 comprises the described roughly the same operation with Figure 13, supplies with operation (supplying with section) 210 as top sheet materials; Main hygroscopic element supply operation (supply section) 212; Parcel operation (parcel section) 214; With propelling operation (advancing section) 216.Because the function of these operations is identical with above-mentioned corresponding operation, detailed description can be with reference to foregoing description.Clustered operation 404 can comprise that binding agent applies operation (the binding agent section of applying) 294 and pressure applies operation (the pressure section of applying) 406.
Supply with in the operation 402 at secondary absorbent assemblies, egative film wire side 278 is supplied with from donor rollers 284 continuously, applies interrupted wire binding agent in the 3rd binding agent section of applying 286 subsequently.Supply with continuous secondary hygroscopic element wire side 276 and be divided into independent secondary hygroscopic element 288 from donor rollers 282 by cutting and separating section 290.Independent secondary hygroscopic element 288 places on the continuous egative film wire side 274 with second interval T, and fixed thereon by binding agent.Top flat wire side 274 is supplied with from donor rollers 280 continuously.The continuous egative film wire side 278 of top flat wire side 274 and the independent secondary hygroscopic element 288 of band is advanced to combined segment 404 as shown in figure 18 subsequently dividually continuously.On the other hand, main absorbent assemblies wire side 266 also advances towards combined segment 404 after applying helical form binding agent 74 by the 4th binding agent section of applying 294.The continuous egative film wire side 278 and the continuous main absorbent assemblies wire side 266 of top flat wire side 274, the independent secondary hygroscopic element 288 of band meet in the pressure section of applying 406 continuously.As shown in figure 19, at least a portion of the first interval S and second interval T is overlapped in the pressure section of applying 406.
All continuous wire sides 274,278 and 266 can be by combining along laterally exerting pressure on the dispersive point 72 of lap X.In addition, top flat wire side 274 and continuous egative film wire side 278 can form continuous composite sanitary napkin wire side 300 in 406 combinations of the pressure section of applying continuously.In this case, the pressure section of applying 406 can comprise along the periphery of secondary absorbent assemblies 50 and applies heat and form heat bonding 291.Perhaps, the periphery of secondary absorbent assemblies 50 can be by only being exerted pressure and combination by the pressure section of applying 406.Composite sanitary napkin wire side 300 is advanced to cutting action 208 subsequently and cuts into the independent segments (being independent composite sanitary napkin 20) with net shape continuously.
With reference to Figure 21-23, this is another preferred, the simplification technological process 500 that the assembling of composite sanitary napkin 20 is shown.As shown in figure 21, the technology 500 of manufacturing composite sanitary napkin 20 comprises following several steps: main absorbent assemblies manufacturing process (main absorbent assemblies is made section) 202; First basic module is supplied with operation (first basic module is supplied with section) 502; Clustered operation (combined segment) 504; Second basic module is supplied with operation (second basic module is supplied with section) 506; In conjunction with operation (adapter section) 508; And cutting action (cut length) 208.Main absorbent assemblies manufacturing process 202 comprises and Figure 13 and 18 described roughly the same operations, supplies with operation (supplying with section) 210 as top sheet materials; Main hygroscopic element supply operation (supply section) 212; Parcel operation (parcel section) 214; With propelling operation (advancing section) 216.Because the function of these operations is identical with above-mentioned corresponding operation, detailed description can be with reference to foregoing description.Clustered operation 504 can comprise that binding agent applies operation (the binding agent section of applying) 294 and pressure applies operation (the pressure section of applying) 506.
Supply with in the operation 502 at first basic module, egative film wire side 274 is supplied with from donor rollers 280 as basic module continuously, applies interrupted wire binding agent in the 5th binding agent section of applying 510 subsequently.From donor rollers 282 supply with continuous secondary hygroscopic element wire sides 276 and by with Figure 13 and 18 cutting and the section of separating 512 of cutting and the same equipment of separate section 290 employings be divided into independent secondary hygroscopic element 288.Independent secondary hygroscopic element 288 is arranged on the continuous egative film wire side 274 with second interval T, and fixed thereon by the wire binding agent.The continuous top flat wire side 274 of the independent secondary hygroscopic element 288 of band is advanced to the pressure section of applying 506 as shown in figure 21 subsequently.On the other hand, main absorbent assemblies wire side 266 also advances towards the pressure section of applying 506 after applying helical form binding agent 74 by the 4th binding agent section of applying 294.The continuous top flat wire side 274 and the continuous main absorbent assemblies wire side 266 of the independent secondary hygroscopic element 288 of band meet in the pressure section of applying 506.As shown in figure 22, at least a portion of the first interval S and second interval T is overlapped in the pressure section of applying 506.Wire side 274 and 266 can be by combination forms continuous compound wire side 510 along laterally exerting pressure on the dispersive point 72 of lap X continuously.Subsequently, compound wire side 510 is advanced to adapter section 508.Adapter section 508 is supplied with and supplied to subsequently to egative film wire side 278 by donor rollers 284 continuously.
After the pressure section of applying 506, the continuous top flat wire side 274 of continuous compound wire side 510 and continuous egative film wire side 278 can be made continuous composite sanitary napkin wire side 512 in adapter section 508 combinations.Adapter section 508 can comprise along the periphery of secondary absorbent assemblies 50 and applies heat and form heat bonding 291.Perhaps, the periphery of secondary absorbent assemblies 50 can be by being exerted pressure or exerted pressure by 508 of adapter sections and heat and combination.Composite sanitary napkin wire side 512 is advanced to cutting action 208 subsequently and cuts into the independent segments (being independent composite sanitary napkin 20) with net shape continuously.
Although continuously wire side 220,222,274,276 and 278 is supplied with from each donor rollers, also can alternative supply material independently.In Figure 13, independent formed film and independent adhesive-bonded fabric can be made independent top flat towards combining unit 228 supplies.In this case, independent absorbent article core can be arranged on the independent top flat.Independent top flat can fold to wrap up independently absorbent article core and form independently main absorbent assemblies.Independent main absorbent assemblies advances towards combined segment 206.Independent top flat, independent egative film and independent secondary hygroscopic material can be supplied with and the independent secondary absorbent assemblies of formation towards adapter section 272.Independent secondary absorbent assemblies advances towards combined segment 206.Subsequently, can be with independent main absorbent assemblies and independent secondary absorbent assemblies combination.In this alternative approach, cut length 208 is optional.
Although illustrated and described specific embodiments of the invention, those of ordinary skill in the art should be understood that under the premise without departing from the spirit and scope of the present invention can carry out various modifications and changes.Therefore, appending claims comprises all such modifications and change within the scope of the invention.

Claims (10)

1. a manufacturing comprises the method for the composite sanitary napkin of main absorbent assemblies and basic module, but main absorbent assemblies is at longitudinal extension and comprise main hygroscopic element and the cover layer that is superimposed upon the transflective liquid on the main hygroscopic element, main absorbent assemblies is superimposed upon on the basic module, and this method comprises the following steps:
(a) but wrap up main hygroscopic element and form main absorbent assemblies with the transflective liquid cover layer, main hygroscopic element is arranged to provide first predetermined space;
(b) advance main absorbent assemblies towards adapter section;
(c) supply with basic module to adapter section;
(d) at least one upper edge in main absorbent assemblies and basic module longitudinally at least a portion apply connector and fixing main absorbent assemblies and basic absorbent assemblies;
(e) make up main absorbent assemblies and basic module by exerting pressure at least at the interval.
2. the method for claim 1 is characterized in that, but the transflective liquid cover layer comprises two-layer or multilamellar, and each layer all has vertical side, and this method comprises that also longitudinally side is in conjunction with the step of each layer.
3. method as claimed in claim 2 is characterized in that integrating step comprises the step of exerting pressure at least.
4. the method for claim 1 is characterized in that, applies step and comprises the step that applies connector along the longitudinal direction continuously.
5. the method for claim 1 is characterized in that, combination step is included in the step that the interval applies heat.
6. composite sanitary napkin that comprises main absorbent assemblies and basic module, main absorbent assemblies has vertical side and lateral ends, but and comprise main hygroscopic element and be superimposed upon the cover layer of the transflective liquid on the main hygroscopic element, main absorbent assemblies is superimposed upon on the basic module,
Basic module has vertical side and lateral ends, but and comprise transflective liquid towards the health lamella, but bonded liquid-tight with transflective liquid towards the medicated clothing lamella towards the health lamella, but and transflective liquid towards health lamella and liquid-tight secondary hygroscopic element between the medicated clothing lamella
Main absorbent assemblies is fixed on the basic module by the connector that comprises first and second connectors, wherein,
First connector comprises the binding agent that at least a portion longitudinally applies between main absorbent assemblies and basic absorbent assemblies,
Second connector is included in lateral ends and is applied to pressure on main absorbent assemblies and the basic absorbent assemblies.
7. composite sanitary napkin as claimed in claim 6 is characterized in that, first connector comprises the helical form binding agent that longitudinally applies.
8. composite sanitary napkin as claimed in claim 6 is characterized in that, but the tectal vertical side of transflective liquid is overlapped.
9. composite sanitary napkin as claimed in claim 6 is characterized in that, but the transflective liquid cover layer of main absorbent assemblies comprises formed film and non-woven fleece.
10. composite sanitary napkin as claimed in claim 9 is characterized in that described formed film and non-woven fleece are together with each other.
CN 97182139 1997-03-31 1997-03-31 Method for assembling body fitting compound sanitary napkin Pending CN1254269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97182139 CN1254269A (en) 1997-03-31 1997-03-31 Method for assembling body fitting compound sanitary napkin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97182139 CN1254269A (en) 1997-03-31 1997-03-31 Method for assembling body fitting compound sanitary napkin

Publications (1)

Publication Number Publication Date
CN1254269A true CN1254269A (en) 2000-05-24

Family

ID=5178307

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 97182139 Pending CN1254269A (en) 1997-03-31 1997-03-31 Method for assembling body fitting compound sanitary napkin

Country Status (1)

Country Link
CN (1) CN1254269A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104869960A (en) * 2012-12-26 2015-08-26 株式会社瑞光 Disposable diaper folding method and folding device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104869960A (en) * 2012-12-26 2015-08-26 株式会社瑞光 Disposable diaper folding method and folding device
CN104869960B (en) * 2012-12-26 2017-09-26 株式会社瑞光 The invagination method and folding device of disposable diaper
US10406038B2 (en) 2012-12-26 2019-09-10 Zuiko Corporation Disposable diaper folding method and folding device

Similar Documents

Publication Publication Date Title
JP4796074B2 (en) Absorbent articles having outwardly convex longitudinal central channels for improved protection
KR102003105B1 (en) Absorbent article
US20180028374A1 (en) Absorbent article having a pair of rear side flaps
TWI236895B (en) Absorbent article equipped with flexible axes
JP3993452B2 (en) Thin absorbent article and method for manufacturing the same
CN1159750A (en) Anatomically shaped compound sanitary napkin
CN1297725A (en) Conic composite sanitary towl
CN1270502A (en) Adjustable compound sanitary napkin
CZ71193A3 (en) Process for producing a curved shaped absorption article
JP2000510376A (en) Composite sanitary napkin that fits body with flap and stretch zone
JP2009090143A (en) Interlabial pad
CN1146372C (en) Anatomically shaped compound sanitary napkin
JP2013111419A (en) Absorption structure and absorbent wearing article using the same
EP1096909B1 (en) Swellable absorbent product and a method for its manufacture
JPH09505222A (en) Fibrous and Porous Stereoscopic Macroscopically Expanding Plastic Webs
JP2002515805A (en) Method of assembling composite sanitary napkin that fits body
CN1254269A (en) Method for assembling body fitting compound sanitary napkin
CN1254270A (en) Method for assembling body fitting compound sanitary napkin
CN1250364A (en) Body fitting compound sanitary napkin
JP2000507479A (en) Method of assembling composite sanitary napkin that fits body
CN1286606A (en) Compound sanitary nopkin having flaps and zone of extensibility
JP2021171484A (en) Absorbent article
KR20010005732A (en) A method for assembling body fitting compound sanitary napkin
WO1998043586A1 (en) A method for assembling body fitting compound sanitary napkin
JP2021065412A (en) Absorbent article

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication