CN106659616A

CN106659616A - Absorbent article comprising a topsheet/acquisition layer laminate

Info

Publication number: CN106659616A
Application number: CN201580048041.0A
Authority: CN
Inventors: R·罗萨蒂; J·M·奥尔; A·格勒尼耶; J·T·奈普迈尔; A·查特济
Original assignee: Procter and Gamble Ltd
Current assignee: Procter and Gamble Ltd; Procter and Gamble Co
Priority date: 2014-09-12
Filing date: 2015-09-03
Publication date: 2017-05-10
Also published as: EP3191060A1; JP2017527387A; WO2016040093A1

Abstract

An absorbent article for personal hygiene comprises a longitudinal axis, a transversal axis perpendicular to the longitudinal axis, a liquid permeable topsheet and an acquisition layer. A width of the acquisition layer in a direction parallel to the transversal axis is less than a width of the topsheet in a direction parallel to the transversal axis. The absorbent article further comprises a topsheet/acquisition layer laminate wherein the liquid permeable topsheet and the acquisition layer are in a face to face relationship. The topsheet/acquisition layer laminate comprises three-dimensional protrusions extending from a plane of the topsheet/acquisition layer laminate. The topsheet and acquisition layer are nested together such that a majority of the three-dimensional protrusions formed in the topsheet coincide with and fit together with a majority of the three-dimensional protrusions formed in the acquisition layer to provide a topsheet/acquisition layer laminate having three-dimensional protrusions.

Description

Including the absorbent article of top flat/acquisition layer lamilate

Technical field

The invention provides a kind of absorbent article including top flat/acquisition layer lamilate.Specifically, the invention provides one Planting includes the absorbent article of top flat/acquisition layer lamilate, dry-laying fibre structure and optional carrier layer.

Background technology

Absorbent article generally includes top flat, egative film and the absorbent cores being arranged between top flat and egative film.Absorbent article includes Acquisition layer and optionally Distribution Layer.Acquisition layer can receive liquid body exudates from top flat, temporarily to store them.So Afterwards, Distribution Layer can receive liquid body exudates and distribute them and be transferred to absorbent cores so as to effective land productivity from acquisition layer Use absorbent cores.Such absorbent article shows gratifying flow handling feature.

Three-dimensional top flat has been have developed；See, for example, the A1 of U.S. Patent application US 2014/0121625.

There is still a need for further improving three-dimensional top flat.

Need to develop it is a kind of including the absorbent article towards skin layer with the three-dimensional structure for absorbent article, should There is provided the flow handling feature for improving towards skin layer for example to bleed back towards less on skin layer, while still meeting dress The physical comfort degree and perception comfort level of person.

It is also required to provide with three-dimensional structure towards skin layer, to reduce the skin of liquid body exudates and wearer The contact of skin.It is also expected to providing soft feeling/soft sense for caregiver and wearer towards skin layer.

The content of the invention

The invention provides a kind of absorbent article for personal hygiene, the absorbent article include axis of pitch, perpendicular to The longitudinal axis of axis of pitch, liquid permeable top flat and acquisition layer.The acquisition layer is on the direction parallel to axis of pitch Width be less than width of the top flat on the direction parallel to axis of pitch.The absorbent article includes that top flat/acquisition layer is laminated Body, wherein liquid permeable top flat and acquisition layer into face-to-face relation.The top flat and acquisition layer include fiber.The top flat/adopt Layer by layer zoarium includes the three-dimensional protuberance extended from the plane of top flat/acquisition layer lamilate to collection.The top flat and the acquisition layer are embedding It is nested together so that the most of three-dimensional protuberance being formed in top flat is prominent with the most of three-dimensionals being formed in acquisition layer Go out portion to overlap and fit together, to provide the top flat/acquisition layer lamilate with three-dimensional protuberance.Top flat/acquisition layer is laminated Body has the first surface for including acquisition layer；The absorbent article includes the egative film of liquid impermeable, the liquid impermeable Egative film is positioned such that the first surface of top flat/acquisition layer lamilate faces egative film.

The absorbent article may include the dry-laying fibre structure or wet for being located at top flat/between acquisition layer lamilate and egative film Method is into network fiber structure.

The invention provides a kind of absorbent article for personal hygiene, the absorbent article include axis of pitch, perpendicular to The longitudinal axis of axis of pitch, liquid permeable top flat and acquisition layer.The acquisition layer is on the direction parallel to axis of pitch Width be less than width of the top flat on the direction parallel to axis of pitch.The absorbent article includes that top flat/acquisition layer is laminated Body, wherein liquid permeable top flat and acquisition layer into face-to-face relation.The top flat and acquisition layer include fiber.The top flat/adopt Layer by layer zoarium includes the three-dimensional protuberance extended from the plane of top flat/acquisition layer lamilate to collection.The top flat and the acquisition layer are embedding It is nested together so that the most of three-dimensional protuberance being formed in top flat is prominent with the most of three-dimensionals being formed in acquisition layer Go out portion to overlap and fit together, to provide the top flat/acquisition layer lamilate with three-dimensional protuberance.Top flat/the collection is layer by layer Zoarium has the first surface for including acquisition layer.The absorbent article includes dry-laying fibre structure, the bottom of liquid impermeable Piece and the carrier layer with first surface and second surface.The dry-laying fibre structure is positioned in the first surface of carrier layer On so that the second surface of carrier layer faces the first surface of egative film or top flat/acquisition layer lamilate.

Top flat and acquisition layer in the top flat/acquisition layer lamilate can be intimate contact with one another.

Most of three-dimensional protuberances can be formed by the fiber of top flat and acquisition layer.Most of three-dimensional protuberances may include shape Pedestal into opening, relative distal part and one between the pedestal and distal part of most of three-dimensional protuberances Or multiple side walls.Pedestal, distal part and one or more side walls can be formed by fiber so that most of three-dimensional protuberances can be only There is opening at pedestal.At least the 50% of the three-dimensional protuberance of the top flat/acquisition layer lamilate or at least 80% can only in base There is opening at seat.

The width comparable of the acquisition layer of the top flat/acquisition layer lamilate includes that dry-laying fibre structure or wet-laying are fine Dimension structure acquisition layer width more than 40% and/or absorbent cores width it is wider more than 20%.

The absorbent article may include lining ring hoop.

The most of three-dimensional protuberance of the top flat/acquisition layer lamilate at least or can exist only in wherein top flat/acquisition layer In top flat in the lamilate region Chong Die with acquisition layer.

The most of three-dimensional protuberance of the top flat/acquisition layer lamilate may be present in the axis of pitch parallel to absorbent article In the region of extension.The most of three-dimensional protuberance of the top flat/acquisition layer lamilate may be present in parallel to the vertical of absorbent article Extend but be not extended past wherein lining ring hoop to axis and be attached in the region in the region of absorbent article.In this case, by shape Formed by the fiber of top flat into the most of three-dimensional protuberance in the top flat in top flat/acquisition layer lamilate.

Most of three-dimensional protuberances can be for the three-dimensional protuberance in top flat/acquisition layer lamilate is more than 50% or is more than 60% or more than 70% or more than 80% or more than 90% or more than 95% or more than 98%.

The carrier layer of the absorbent article can be coloring.

Length of the acquisition layer on the direction parallel to longitudinal axis is smaller than top flat in the side parallel to longitudinal axis Length upwards.

When absorbent article in use when, the most of three-dimensional protuberance of top flat/acquisition layer lamilate can be towards egative film or court The body of wearer is projected.

Description of the drawings

Although the claims that this specification passes through to particularly point out and be distinctly claimed the present invention are drawn a conclusion, It is believed that the present invention is better understood by the way that following explanation is read in conjunction with the accompanying, wherein：

Fig. 1 is the absorbent article in diaper form according to the present invention, and the diaper includes that exemplary topsheet/acquisition layer is laminated The length of body, wherein acquisition layer is less than the length of top flat, and some of them layer is partly removed；

Fig. 2 is the cross section of the diaper of Fig. 1；

Fig. 3 is the cross section of the diaper of Fig. 1；

Fig. 4 is the absorbent article in diaper form according to the present invention, and the diaper includes that exemplary topsheet/acquisition layer is laminated The three-dimensional protuberance of body, wherein top flat/acquisition layer lamilate is only formed in the top flat in top flat/acquisition layer lamilate with collection The position that layer is overlapped, some of them layer is partly removed；

Fig. 5 is the absorbent article in diaper form according to the present invention, and the diaper is included with another type of absorption The exemplary topsheet of core/acquisition layer lamilate, some of them layer is partly removed；

Fig. 6 is the cross section of the diaper of Fig. 5；

Fig. 7 be with Fig. 6 identicals point at intercept Fig. 5 absorbent article cross section, wherein because absorbent article adds It is loaded with liquid body exudates and forms passage；

Fig. 8 is the diagrammatic side view of the example of the technique suitable for the present invention；

Fig. 9 is the diagrammatic side view of another example of the technique suitable for the present invention；

Figure 10 is the diagrammatic side view of another example of the technique suitable for the present invention；

Figure 11 is the absorbent article in diaper form according to the present invention, and the diaper includes the exemplary top with carrier layer Piece/acquisition layer lamilate, some of them layer is partly removed；

Figure 12 A are the cross section of the diaper of Figure 11；

Figure 12 B are another cross section of the diaper of Figure 11；

Figure 13 is the absorbent article in diaper form according to the present invention, and the diaper includes the exemplary top with carrier layer Piece/acquisition layer lamilate, some of them layer is partly removed；

Figure 14 is the cross section of the diaper of Figure 13；

Figure 15 be according to the present invention the absorbent article in diaper form, the diaper include have be positioned in absorbent article Proparea in acquisition layer exemplary topsheet/acquisition layer lamilate, some of them layer partly removed；

Figure 16 be according to the present invention the absorbent article in diaper form, the diaper include have be positioned in absorbent article Back zone in acquisition layer exemplary topsheet/acquisition layer lamilate, some of them layer partly removed；

Figure 17 for equipment perspective view, the equipment include for formed the present invention top flat/acquisition layer lamilate first Intermeshing roller and the second intermeshing roller；

Figure 18 A are the cross section description of a part for equipment shown in fig. 17；

Figure 18 B are the perspective view of a part for the second intermeshing roller of equipment shown in fig. 17；

Figure 19 A are showing for the three-dimensional protuberance of the top flat/acquisition layer lamilate obtained using equipment shown in fig. 17 It is intended to；

Figure 19 B are the perspective view of the three-dimensional protuberance of top flat/acquisition layer lamilate shown in fig. 19 a；

Figure 19 C are another perspective view of the three-dimensional protuberance of top flat/acquisition layer lamilate shown in fig. 19 a；

Figure 19 D are showing for the three-dimensional protuberance of the top flat/acquisition layer lamilate obtained using equipment shown in fig. 17 It is intended to；

Figure 19 E are showing for the three-dimensional protuberance of the top flat/acquisition layer lamilate obtained using equipment shown in fig. 17 It is intended to；

Figure 19 F are showing for the three-dimensional protuberance of the top flat/acquisition layer lamilate obtained using equipment shown in fig. 17 It is intended to；

Figure 20 A are showing for the three-dimensional protuberance of the top flat/acquisition layer lamilate obtained using equipment shown in fig. 17 It is intended to；

Figure 20 B are showing for the three-dimensional protuberance of the top flat/acquisition layer lamilate obtained using equipment shown in fig. 17 It is intended to；

Figure 20 C are showing for the three-dimensional protuberance of the top flat/acquisition layer lamilate obtained using equipment shown in fig. 17 It is intended to；

Figure 20 D are showing for the three-dimensional protuberance of the top flat/acquisition layer lamilate obtained using equipment shown in fig. 17 It is intended to；

Specific embodiment

The definition of term

As used herein, term " absorbent article " refer to be close to or neighbouring wearer body to absorb and accommodate from body The disposable products of the various liquid body exudates discharged, diaper, trousers and female sanitary towel etc..These absorbent articles lead to Often include top flat, egative film, absorbent cores and optional acquisition layer and/or Distribution Layer and other parts, wherein absorbent cores generally quilt It is placed between egative film and acquisition system or top flat.The absorbent article of the present invention can be diaper or trousers.

As used herein, term " diaper " is referred to and is intended to by wearer around lower body dress to absorb and accommodate by body The absorbent article of the liquid body exudates that body is discharged.Diaper can be by child (such as baby or toddlers) or adult's dress. They can have element.

As used herein, term " trousers " refer to be designed to baby or adult wearers with built-in edge, waist The absorbent article of portion's opening and leg opening.By the way that the leg of wearer is stretched in leg opening and pant type absorbent article is moved to Position near wearer's lower body and by trousers through with wearer.Trousers can by any suitable technology come preform, including But be not limited to use refastenable and/or not reproducible fastening binding part (for example, stitch, weldment, adhesive, Cohesive adhesive portion, fastener etc.) various pieces of absorbent article are bonded together.Trousers can be along any position of article periphery Preform (for example, side fastening, Attacking Midfielder's fastening).

As used herein, term " extendable " refers to following material：If undergoing following test, when disruptive force is reached Or before, the material can be equal to or more than it in applying power along the longitudinal axis of absorbent article and/or axis of pitch experience The apparent elongation of at least the 100% of initial length：

The longitudinal axis tensile properties and/or the option B of axis of pitch tensile properties using method WSP 110.4 (05) with The Drawing rate of the specimen width of 50mm, the gauge length of 60mm and 60mm/min is measuring.

According to as above " method of testing ", expect material when disruptive force is reached or before can be along absorbent article Longitudinal axis and/or axis of pitch experience are up to 200% equal to or more than at least 100% or 110% or 120% or 130% Apparent elongation.

If material can experience less than its initial length 100% apparent elongation (if undergoing above-mentioned test), It is " not extendable ", as used herein.

As used herein, term " top flat/acquisition layer lamilate " refers to the top flat and acquisition layer arranged with face-to-face relation Closely combine.Top flat has first surface and second surface.When absorbent article when in use, the first surface of top flat is faced to be worn The body of the person of wearing.The acquisition layer is towards egative film.Top flat web and acquisition layer combination with one another is laminated to form top flat/acquisition layer During body web, top flat web and acquisition layer may experience simultaneously and united mechanically deform, the top flat/acquisition layer lamilate Web provides each top flat/acquisition layer lamilate in each absorbent article.The top flat/acquisition layer lamilate includes forming three-dimensional The variant part of protuberance.Top flat/acquisition layer lamilate is formed by the way that top flat and acquisition layer are nested together so that be formed Most of three-dimensional protuberance in top flat overlaps with the most of three-dimensional protuberance being formed in acquisition layer and is fitted in one Rise, as shown in figures 19a and 20a.

In top flat/acquisition layer lamilate, top flat and acquisition layer can be intimate contact with one another.

In the region of the three-dimensional protuberance of top flat/acquisition layer lamilate, there is no one of top flat or acquisition layer mutually It is perforated through corresponding another top flat or acquisition layer.Top flat and acquisition layer are extendable so that top flat and/or acquisition layer energy Enough top flats or acquisition layer for stretching and not mutually being perforated through corresponding rupture.

In the region of three-dimensional protuberance, top flat and/or acquisition layer may include one or more discontinuities.This more The formation of individual discontinuities is attributable to the attribute of top flat and acquisition layer, the i.e. apparent elongation of fiber, wherein fiber mobility, shape Into the deformation in the region of the three-dimensional protuberance of top flat/acquisition layer lamilate and stretch capability.In other words, top flat is extending It is as the same that property is smaller than acquisition layer or vice versa；However, non-ruptured top flat or acquisition layer mutually through corresponding rupture top flat or Acquisition layer.

Therefore, top flat/acquisition layer lamilate can be formed in the following way：Dash forward in the three-dimensional of top flat/acquisition layer lamilate Go out interruption one of top flat or acquisition layer in the region in portion so that the top flat of corresponding another non-interruption or the three of acquisition layer Dimension protuberance fits together at least in part with the top flat of interruption or the three-dimensional protuberance of acquisition layer, such as Figure 19 D, 19E, 20B With shown in 20C.

Alternatively or in addition to the above, top flat/acquisition layer lamilate can also be formed in the following way：On top Be interrupted top flat and acquisition layer in the region of the three-dimensional protuberance of piece/acquisition layer lamilate, and the three-dimensional protuberance of top flat with adopt The three-dimensional protuberance of collection layer overlaps and fits together.If top flat and acquisition layer include the interruption in the region of three-dimensional protuberance Portion, then the discontinuities in the top flat in the region of the three-dimensional protuberance of top flat/acquisition layer lamilate will not be with top flat/collection layer by layer The discontinuities in acquisition layer in the region of fit three-dimensional protuberance overlap, as shown in Figure 19 F and 20D.In top flat/acquisition layer In the region of the three-dimensional protuberance of lamilate, there is no one of top flat or acquisition layer and be mutually perforated through corresponding another top flat Or acquisition layer.

As used herein, term " discontinuities " to be referred to and be formed on top flat during the formation of top flat/acquisition layer lamilate And/or the hole in acquisition layer, and do not include the hole and gap that are typically found between the fiber in non-woven material.

As used herein, term " mechanically deform is simultaneously combined " refers to that top flat web and acquisition layer are placed with pass face-to-face System, and while can mechanically deform between the first roller and the second roller, and while closely combined.Top flat web and adopt Collect the mechanically deform of layer depending on technique, equipment needed thereby, but also depend on the attribute of top flat web and acquisition layer, the i.e. table of fiber Deformation and drawing in sight elongation, fiber mobility, the region of the three-dimensional protuberance for forming top flat/acquisition layer lamilate web wherein Ability, the ability of experience plastic deformation stretched, the plastic deformation is after the first roller and the second roller has been used or due to elastic extensive The partly afterboarding of resilience again.

The mechanically deform may include top flat and acquisition layer between the first intermeshing roller and the second intermeshing roller Intermeshing is together.First intermeshing roller includes multiple ridges and respective slot.Second intermeshing roller includes multiple rows of circumference Tooth spaced apart and respective slot so that acquisition includes multiple variant parts of three-dimensional protuberance.Tunnel-type ring can be a type Three-dimensional protuberance.

For each three-dimensional protuberance：

- top flat is nested in acquisition layer or vice versa as the same so that the most of three-dimensional protuberance of top flat and acquisition layer Most of three-dimensional protuberances overlap and fit together, as shown in figures 19a and 20a.Dash forward in the three-dimensional of top flat/acquisition layer lamilate In going out the region in portion, there is no one of top flat or acquisition layer IPN and enter or through corresponding another top flat or collection Layer.

- in addition to the above, one of top flat or acquisition layer can be prominent in the three-dimensional of top flat/acquisition layer lamilate It is interrupted in the region in portion so that three-dimensional protuberance is at least part of by made by the top flat or acquisition layer of corresponding another non-interruption Ground fits together with the three-dimensional protuberance of the acquisition layer of the three-dimensional protuberance or interruption of the top flat of interruption, such as Figure 19 D, 19E, Shown in 20B and 20C.In the region of the three-dimensional protuberance of top flat/acquisition layer lamilate, there is no in top flat or acquisition layer Person is mutually perforated through corresponding another top flat or acquisition layer.

- alternatively or in addition to the above, top flat and acquisition layer can be prominent in the three-dimensional of top flat/acquisition layer lamilate It is interrupted in the region in portion, and the three-dimensional protuberance of top flat overlaps and fits together with the three-dimensional protuberance of acquisition layer.Top flat/ The discontinuities in top flat in the region of the three-dimensional protuberance of acquisition layer lamilate can not be with the three-dimensional of top flat/acquisition layer lamilate Discontinuities in acquisition layer in the region of protuberance overlap, as shown in Figure 19 F and 20D.The three of top flat/acquisition layer lamilate In the region of dimension protuberance, there is no one of top flat or acquisition layer and be mutually perforated through corresponding another top flat or acquisition layer.

As used herein, term " most of three-dimensional protuberances " refers to that the three-dimensional in top flat/acquisition layer lamilate web is dashed forward The three-dimensional protuberance gone out in the top flat/acquisition layer lamilate of portion or absorbent article more than 50% or more than 60% or more than 70% Or more than 80% or more than 90% or more than 95% or more than 98%, each of which includes being formed being open and with protuberance pedestal The pedestal of width, relative distal part and one or more sides between the pedestal and distal part of three-dimensional protuberance Wall.Pedestal, distal part and one or more side walls are formed by fiber so that three-dimensional protuberance only has opening at pedestal (as shown in Figure 19 A are exemplary).As used herein, term " tunnel-type ring " refers to that the three-dimensional of top flat/acquisition layer lamilate is prominent Portion is limited by multiple rings, and the plurality of ring extends to acquisition layer or extends to top flat from acquisition layer from top flat.The plurality of ring include by One or more fiber made by top flat/acquisition layer lamilate.The fiber of the plurality of ring is substantially in alignment with each other so that multiple annulars Into tunnel-type ring.Tunnel-type ring can be defined as semi-cylindrical shaped part (cylindania), i.e., along its length to the circle of hemisect Cylinder, it includes the opening and pedestal opening of each end of tunnel-type ring.

As used herein, term " longitudinal direction " or " MD " refer to the path that material such as web is advanced along whole manufacture process.

As used herein, term " horizontal " or " CD " refer to the path being transversely to the machine direction in the plane of web.

As used herein, term " cellulose fibre " refers to the natural fiber of usually wood pulp cellulose.Wood pulp applicatory Including chemical wood pulp, such as kraft pulp, sulphite wood pulp and sulfate wood pulp, and groundwood pulp, including such as wood fragments The thermomechanical pulp of slurry, thermomechanical pulp and chemical modification.It is possible with deriving from deciduous tree (to be hereinafter also referred to as " hard Wood ") and coniferous tree (being hereinafter also referred to as " cork ") wood pulp.Hardwood fiber and cork fibrous can be blended, Huo Zheling Selection of land deposits to provide the web of layering in the form of layer.

As used herein, term " dry-laying fiber " refers to the fiber provided in gaseous fluid medium (air).

As used herein, term " wet laid cellulose " includes being converted into width according to wet-lay papermaking processes Material and the cellulose fibre being suspended in before drying in water-bearing media such as water.

As used herein, term " web " is to refer to be wound into the material of volume.Web can be non-woven material.

As used herein, term " nonwoven webs " is referred to by the fiber of orientation or arbitrary orientation by friction and/or glue The material of the viscous and/or manufacture that adheres to and be bonded to, web, piece or batt, not including paper with by weaving, braiding, cluster into, Loop bonding and combine the yarn of constraint or the product of long filament, regardless of whether stitching in addition.Fiber can be natural or man-made origin.The fiber Short yarn or continuous filament yarn or can be formed in situ.The porous fibrous structure of non-woven material can be to be constructed on demand Into liquid permeable or impermeable.

As used herein, term " absorbent cores " refers to that such as lower component, it is placed on or is intended to be placed on absorbent article It is interior, and including the absorbing material being encapsulated in core wrappage.Term " absorbent cores " does not include acquisition layer or Distribution Layer or not It is the integral part of core wrappage or any other part of the absorbent article being not placed in core wrappage.Absorbent cores are usual It is the maximum absorption capacity for including whole or at least most of super-absorbent polymer and all parts with absorbent article Absorbent article part.

As used herein, term " being substantially free of absorbing material " referred in the region of absorbing material is substantially free of, The base weight of absorbing material is the base weight of the absorbing material in the remainder of absorbent cores at least below 10%, particularly less than 5%, or less than 2%.

As used herein, term " super-absorbent polymer " (being abbreviated as herein " SAP ") refers to following absorbing material：It is friendship Linked polymer material, when (CRC) (EDANA method WSP 241.2-05E) is tested to measure using " Centrifuge Retention Capacity ", gathers Compound material can absorb the 0.9% aqueous saline solution of at least 10 times their weight.The SAP of the present invention specifically may be used With more than 20g/g, or more than 25g/g, or 20 to 50g/g, or 20 to 40g/g, or the crc value of 25 to 35g/g.Can be used for this The SAP of invention includes the polymer that can absorb a large amount of liquid body exudates of various water-insolubles but water-swellable.

As used herein, term " being joined to " includes on other elements that element is direct by the way that element is directly attached to The configuration being fixed on another element, and by the way that element is attached to into one or more intermediary elements, the intermediary element after And be attached on another element, and configuration element being indirectly fixed on another element.Term " being joined to " cover by A certain element is fixed to the configuration of another element at select location, and by a certain element across one of element whole table Face is completely fixed to the configuration of another element.Term " being joined to " can be by fixed side including any of wherein element Formula, including but not limited to mechanical interlocking.

As used herein, term " adjacent to transverse edge engagement " refers to the first transverse edge and/or the when ground floor When two transverse edges are engaged adjacent to first transverse edge and/or the second transverse edge of the second layer, the first of ground floor is horizontal Between edge and/or the second transverse edge are arranged on the first transverse edge with the second layer and/or the second transverse edge medially In the region for separating.The region has the width of the 1% to 30% of the width of the second layer.

" including " or "comprising" are open-ended terms, the presence of each specified such as component described thereafter, but not Exclude the presence of further feature such as element, step, component known in the art or disclosed herein.Based on verb " including " These terms should be read as covering narrower term "consisting essentially of ...", it excludes and NM interferes significantly on Feature structure performs any element, step or the composition of the mode of its function；And cover term " Consists of ", it is excluded not Any element, step or the composition specified.Any preferred or exemplary hereinafter described does not limit claim Scope, so carry out unless clearly indicated.Words " usual ", " usually ", " advantageously " etc. also limit feature, and it is not intended to The scope of claim is limited, so carry out unless clearly indicated.

General remark to absorbent article 20

A kind of Exemplary absorbent articles 20 of the absorbent cores 28 that can wherein use the present invention are such as in Fig. 1, Fig. 4 and Fig. 5 The shown taped diaper 20 with different absorbent cores construction.Fig. 1, Fig. 4 and Fig. 5 are the exemplary diaper 20 in flattened state Top plan view, the wherein various pieces of the structure are removed to be shown more clearly that the construction of diaper 20.The diaper 20 is only It is in order at shown in the purpose of illustration, because the present invention can be used to prepare various diapers or other absorbent articles.

Absorbent article 20 includes the top flat/acquisition layer lamilate formed by liquid permeable top flat 24 and acquisition layer 52 245.In other words, absorbent article 20 includes liquid permeable top flat 24 and acquisition layer 52, it is characterised in that top flat 24 and adopt Collection layer 52 is joined to form top flat/acquisition layer lamilate 245.Absorbent article 20 includes the egative film 25 of liquid impermeable and is situated between Absorbent cores 28 between top flat 24 and egative film 25.Absorbent article 20 includes leading edge 10, back edge 12 and two longitudinal sides Edge 13.Leading edge 10 for absorbent article 20 the anterior edge placed being intended to when being worn towards user, and back Edge 12 is opposite edges.When absorbent article 20 is observed towards wearer side in flat-out configuration, absorbent article 20 can be false Divided by longitudinal axis 80 with thinking, the longitudinal axis extends to back edge 12 from the leading edge 10 of absorbent article 20, and will inhale Receive product 20 and the half portion of two substantial symmetries be divided into relative to the axis, as Fig. 1, Fig. 4 and Fig. 5 exemplarily shown in.

Absorbent article 20 may include Distribution Layer 54, and the Distribution Layer may include dry-laying fibre structure or wet laid cellulose Structure.When absorbent article 20 when in use, top flat/acquisition layer lamilate 245 faces the body of wearer.

According to " wet burst strength method of testing " and combinations thereof, including the wet laid cellulose of wet laid cellulose Structure can have " wet burst strength " of 50g to 500g.

Distribution Layer 54 may include dry-laying fibre structure.Dry-laying fibre structure may include dry-laying fiber 540. Dry-laying fibre structure may include the mixture with super-absorbent polymer and dry-laying fiber.Dry-laying fiber can be wrapped Include intrafiber crosslink connection cellulose fibre.

The Distribution Layer 54 can be free of bunch fiber.

Distribution Layer 54 can for example include by weight at least 50% cross-linked cellulose fibres.Cross-linked cellulose fibres can be Play fold, twisting or crimping or combinations thereof (including fold, twisting and curling is played).The material of the type Material was used in disposable diaper in the past as a part for acquisition system, such as A1 of US 2008/0312622 (Hundorf)。

The cellulose fibre being crosslinked suitable for the Exemplary chemical of Distribution Layer 54 is disclosed in US 5,549,791；US 5, 137,537；In WO95/34329 or US2007/118087.Exemplary cross linking agents may include polycarboxylic acids such as citric acid and/or gather Acrylic acid such as acrylic acid and maleic acid.

The Distribution Layer can generally have 30g/m²To 400g/m², specifically 100g/m²To 300g/m²Average basis weight.Adopt The density of collection layer can change according to the compression degree of product, but can be between 0.03g/ when measuring under 0.30psi (2.07kPa) cm³To 0.15g/cm³Between, specifically between 0.08g/cm³To 0.10g/cm³Between.

Distribution Layer 54 can have 30gsm to 400gsm, and specifically 100gsm's to 300gsm or 50gsm to 250gsm is average Base weight.

The detailed technique of following article is explained that top flat web 240 and acquisition layer 52 can mechanically be deformed simultaneously simultaneously Combine, to form top flat/acquisition layer lamilate 245.Top flat/acquisition layer lamilate web 2450 forms absorbent article 20 In top flat/acquisition layer lamilate 245.Top flat/acquisition layer lamilate 245 includes forming the mechanically deform of three-dimensional protuberance 250 Portion.Mechanically deform portion to top flat/acquisition layer lamilate 245 provides three-dimensional structure.

Absorbent article 20 may include the elasticized gasketing cuff 32 being present between top flat 24 and egative film 25 and uprightly intercept leg Hoop 34.Fig. 1, Fig. 4 and Fig. 5 are also shown for other typical diaper components, and such as including the fastening system of securing tabs 42, this is tight Gu tab is attached towards the back edge 12 of absorbent article 20 and the leading edge 10 towards absorbent article 20 coordinates with touch-down zone 44.Absorb Product 20 may also comprise other typical components not shown in accompanying drawing, such as after elastic waist structure, front elastic waist structure, one Individual or multiple horizontal obstruct hoops, lotion applications etc..

As shown in fig. 7, intercept leg cuff 34 can by be joined to absorbent article 20 remainder (usually top flat 24 and/or Egative film 25) proximal 64 and free end edge define, the free end edge defines and is intended to be contacted simultaneously with the skin of wearer Form seal.Intercepting leg cuff 34 can be engaged at proximal 64 by binding part 65, and the binding part can for example by bonding The combination of agent bonding, fusion bonding or known adhesive method is made.Each intercepts leg cuff 34 and may include one, two or more Individual elastic filament 35 is providing better seal.Lining ring hoop 32 can be placed on laterally outside relative to leg cuff 34 is intercepted.Lining ring Hoop 32 can provide the better seal around wearer's thigh.Generally each gasketing leg cuff 32 will be including for example opening positioned at leg One or more elastic filaments between top flat 24 and egative film 25 or flexible member 33 in the region of mouth.

When absorbent article 20 is in flat condition, absorbent article 20 also hypothetically can be divided into by axis of pitch 90 to be had Along the proparea and back zone of the equal length of longitudinal axis measurement.The axis of pitch 90 perpendicularly to the longitudinal axis 80 of the absorbent article, And it is placed at 1/2nd length of absorbent article 20.The length of absorbent article 20 can be along longitudinal axis 80 from absorption system The leading edge 10 of product 20 is measured to back edge 12.Top flat 24, acquisition layer 52, Distribution Layer 54 and absorbent cores 28 each have width, The width can be measured from their corresponding transverse edges and parallel to axis of pitch 90.

Absorbent article 20 is divided into proparea 36, back zone 38 and between the proparea and back zone of absorbent article 20 with being supposed to Crotch region 37.Proparea, back zone and crotch region are respectively the 1/3 of the length of absorbent article 20.Absorbent article may also comprise the He of front auricle 46 Auricle 40 afterwards, as known in the art.

The absorbent cores 28 of the present invention may include absorbing material 60, and the absorbing material is that cellulose fibre is (so-called " ventilative Felt ") and super-absorbent polymer blend, the blend in being encapsulated in particle form in one or more substrates, referring to Such as US 5,151,092 (Buell).Alternatively, absorbent cores 28 can be free of airfelt, as detailed below.

In general, such as observe from the top side face of absorbent cores 28, the (see below) of absorbent cores 28 that can be used for the present invention can Limited by the periphery of such as lower floor, this layer is formed by the absorbing material 60 in core wrappage 160.Absorbent cores 28 can adopt various shapes Shape, particularly shown so-called " dog bone " or " hourglass " shape, its show along its width towards the middle part of core or " crotch " area gradually Contracting.So, absorbent cores 28 can have the width of opposite, narrow in the region of the absorbent cores 28 being intended in the crotch region for being placed in absorbent article Degree.This can provide for example more preferable snugness of fit.Therefore, absorbent cores 28 can have following width (such as edge at its most narrow point Cross measure)：The width is less than about 100mm, even less than 90mm, 80mm, 70mm, 60mm or about 50mm.Absorbent cores 28 Can be substantially rectangular, as shown in such as Fig. 5, but can also use other deposition regions, such as " T " or " Y " or " hourglass " or " dog Bone " shape (see such as Fig. 4).

Some parts of absorbent article 20 are will be discussed in now.

" without airfelt " absorbent cores 28

The absorbent cores 28 of the present invention may include the absorbing material 60 being encapsulated in core wrappage 160.By absorbing material 60 Gross weight meter, absorbing material 60 may include 80% to 100% SAP, such as SAP particles.For assessment SAP in absorbent cores 28 The purpose of middle percentage, core wrappage 160 is not qualified as absorbing material 60.

So-called " absorbing material ", refers to the material with least some absorption characteristic and/or liquid retention performance, such as The synthetic fibers that SAP, cellulose fibre and some Jing hydrophilies are processed.The adhesive for being commonly used for preparing absorbent cores does not have There is absorption characteristic, and be not qualified as absorbing material.SAP contents can be by the interior absorbing material 60 for including of core wrappage 160 Weight be substantially higher than 80%, for example, at least 85%, at least 90%, at least 95% and even up to and including 100%. The ventional absorption core of the cellulose fibre compared to the SAP generally included between 40-60% and between 40-60%, The above-mentioned SAP contents for being substantially higher than 80%SAP can provide relatively slim absorbent cores 28.The absorbing material 60 of the present invention can be concrete Ground includes less than 10% percentage by weight, or less than the natural fiber and/or synthetic fibers of 5% percentage by weight, or or even base Not including natural fibers and/or synthetic fibers in sheet.Absorbing material 60 can advantageously comprise few cellulose fibre or not include fibre Cellulose fiber, specifically based on the weight of absorbent cores 28, absorbent cores 28 may include (airfelt) less than 15%, 10%, or 5% Cellulose fibre, or or even it is substantially free of cellulose fibre.Such absorbent cores 28 can be relatively slim, and be thinner than routine Airfelt core.Fig. 1, Fig. 2 and Fig. 3 are the illustration of the absorbent article 20 for including " without airfelt " absorbent cores 28.

Past had proposed that " not the containing airfelt " with the design of various absorbent cores of the SAP comprising relatively high amount absorbed Core 28, see, for example, US 5,599,335 (Goldman), EP1447066A1 (Busam), WO95/11652 (Tanzer), US2008/0312622A1 (Hundorf) and WO2012/052172 (Van Malderen).

The absorbent cores 28 of the present invention may include such as adhesive to help that SAP is fixed in core wrappage 160, and/ Or guarantee the integrality of core wrappage 160, specifically when core wrappage 160 is made up of one or more substrates.Core is wrapped up Thing 160 comprising the region needed for absorbing material 60 generally by than strictly extending on bigger region in it.

Core wrappage

Absorbing material 60 is encapsulated in one or more substrates.

Core wrappage 160 includes the top side face 16 towards top flat 24 and the bottom side 16 towards egative film 25.Core wrappage 160 Can be made up of the single substrate folding around absorbing material 60.Core wrappage 160 can be by the two substrates (master being attached to one another Top side face 16 is provided and another mainly provides bottom side 16 ') make, as Fig. 2 exemplarily shown in.Typical configurations are institute The C-shaped wrappage and/or sandwich wrappage of meaning.In C- wrappages, as illustrated in Fig. 6, the longitudinal direction of a substrate And/or transverse edge just folds to form flank on another substrate.Then these fins are bonded to the outer of another substrate Surface, the bonding that this is generally carried out by using adhesive is carrying out.Compared to sandwich seal, so-called C-shaped wrappage structure Making can provide beneficial effect, the fracture-resistant for such as improving under wetting stress state.

Core wrappage 160 can be formed by any material suitable for receiving and accommodating absorbing material 60.Core wrappage 160 can Specifically formed by nonwoven webs, such as carded nonwoven, spunbonded non-woven fabrics (" S ") or meltblown nonwoven fabric The lamilate of (" M ") and any these materials.For example, melt spun polypropylene supatex fabric is suitable, is specifically had Laminated web SMS or SMMS or SSMMS structures and those melt spun polypropylenes with about 5gsm to 15gsm basis weight ranges non-are knitted Make fabric.Suitable material e.g., as disclosed in US 7,744,576, US2011/0268932A1, US2011/0319848A1 or In US2011/0250413A1.The non-woven material provided by synthetic fibers, such as polyethylene (PE), poly- terephthaldehyde can be provided Sour second diester (PET), especially polypropylene (PP).

Including " not containing airfelt " absorbent cores 28 in the region 26 for being substantially free of absorbing material

Absorbent cores 28 may include the absorbing material deposition region 8 limited by the periphery of layer, and this layer is by core wrappage 160 Absorbing material 60 is formed.

Absorbent cores 28 may include to be substantially free of the area that one or more of absorbing material 60 are substantially free of absorbing material Domain 26, and by the region, a part for the top side face 16 of core wrappage 160 is by one or more core wrappage binding parts A part for 27 bottom sides 16 ' for being attached to core wrappage 160, as illustrated in Figures 5 and 6.Specifically, can not deposit in that region In absorbing material 60.The a small amount of such as pollutant with absorbing material 60 being likely to occur in the fabrication process is not qualified as inhaling Receive material 60.One or more regions 26 for being substantially free of absorbing material advantageously can be limited by absorbing material 60, this meaning Taste any edge that one or more regions 26 for being substantially free of absorbing material are not extend to absorbing material deposition region 8.

If the region 26 for being substantially free of absorbing material extends to any edge of absorbing material deposition region 8, often It is individual be substantially free of the region 26 of absorbing material and can be substantially free of on the either side in the region 26 of absorbing material at each have The region of absorbing material 60.

Absorbent cores 28 may include at least two regions 26 for being substantially free of absorbing material, and they are symmetrically disposed in absorption On the both sides of the longitudinal axis of core 28, as shown in Figure 5.

The region 26 for being substantially free of absorbing material can be straight and completely machine-direction oriented and parallel to longitudinal axis, but It is alternatively bending or with one or more sweeps.

Additionally, the risk in order to reduce liquid body exudates seepage, the region 26 for being substantially free of absorbing material is favourable Ground does not extend up to any edge of absorbing material deposition region 8, and therefore is enclosed by the absorbing material deposition region 8 of absorbent cores 28 Around and encompassed completely in the absorbing material deposition region.Generally, it is substantially free of the region 26 of absorbing material and absorbs Minimum range between the nearest edge of deposited region of material 8 is at least 5mm.

" not containing airfelt " absorbent cores 28 including the region 26 without absorbing material in sheet were proposed, see, for example, European patent application 12196341.7.

When absorbing material 60 absorbs liquid and starts swelling, suction is substantially free of along one or more in absorbent cores 28 Receiving one or more passages 26 ' in the region 26 of material can initially form.As absorbent cores 28 absorb more liquid, by one or The recess in absorbent cores 28 that multiple passages 26 ' are formed will become deeper and be easier to be seen and touch.Passage 26 ' Formation also can be used to indicate that absorbent article 20 has been loaded with liquid body exudates.Core wrappage binding part 27 should at least exist Keep essentially completed during the first stage that absorbing material 60 absorbs the liquid body exudates of moderate.

As shown in fig. 7, when absorbing material is swelling, core wrappage binding part 27 is attached at substantially when keeping at least initial In region 26 without absorbing material.Absorbing material 60 in the remainder of absorbent cores 28 is swelling when it absorbs liquid, makes Obtain core wrappage 160 and therefore form passage along the region 26 for being substantially free of absorbing material for including core wrappage binding part 27 26’。

Absorbent article with top flat/acquisition layer lamilate

The invention provides the top flat with three-dimensional structure/acquisition layer lamilate 245.

Technique 100 suitable for preparing absorbent article 20 may include following steps：There is provided and essentially continuously prolong along longitudinal direction The liquid permeable top flat web 240 stretched, top flat web 240 has：First surface and second surface；Essentially continuously edge The egative film web 2555 of the liquid impermeable of Longitudinal extending；With the acquisition layer 52 with first surface and second surface.Work as suction Receive product 20 when in use, the first surface of top flat web 240 will face the body of wearer.Top flat web 240 and therefore Top flat 24 and acquisition layer 52 include fiber.

By top flat web 240 and acquisition layer 52 with the alignment of face-to-face relation so that the second surface contact of top flat web 240 The first surface of acquisition layer 52.Top flat web 240 and acquisition layer 52 can mechanically be deformed and be combined simultaneously.Top flat width Material 240 and acquisition layer 52 are nested together so that be formed on most of three-dimensional protuberance in top flat web 240 with by shape Overlap and fit together into the most of three-dimensional protuberance in acquisition layer 52, so as to provide with three-dimensional protuberance 250 Top flat/acquisition layer lamilate web 2450.This means that both top flat web 240 and acquisition layer 52 can be by mechanically deformation and same When combine.Three-dimensional protuberance 250 extends from the plane of top flat/acquisition layer lamilate 245.Top flat/acquisition layer lamilate Web 2450 has the first surface of the second surface for including acquisition layer 52.

The a part of engageable top flat web 240 to top flat/acquisition layer lamilate web 2450 of egative film web 2555 A part so that the first surface of top flat/acquisition layer lamilate web 2450 faces egative film web 2555.

Preparing the technique 100 of absorbent article 20 may include to provide dry-laying fibre structure or wet laid fibrous structure Step, as shown in Figure 8.

As shown in figure 8, top flat web 240 and acquisition layer 52 can mechanically be become between the first roller 211 and the second roller 212 Shape simultaneously combines to form top flat/acquisition layer lamilate web 2450.The dry-laying fiber 540 of dry-laying fibre structure (as shown in figure 8, being provided by distribution material feeding machine 210) or wet laid fibrous structure can be deposited over top flat/collection layer by layer On the first surface of fit web 2450 or egative film web 2555.

The a part of engageable top flat web 240 to top flat/acquisition layer lamilate web 2450 of egative film web 2555 A part so that dry-laying fibre structure or wet laid fibrous structure are located at top flat/He of acquisition layer lamilate web 2450 Between egative film web 2555.

Dry-laying fibre structure may include dry-laying fiber 540.Dry-laying fibre structure may include with superabsorbent The mixture of pinching compound (SAP) and dry-laying fiber.Dry-laying fiber may include that intrafiber crosslink joins cellulose fibre.

The step of technique may also include offer absorbent cores 28, the absorbent cores include absorbing material 60.By absorbing material 60 Gross weight meter, absorbing material 60 may include 80% to 100% SAP, such as SAP particles.

Another type of absorbing material may be based on the absorbent foam of the cross-linking monomer comprising acidic-group, referring to example Such as the 97/31971 99/44648 Al and Al of WO 00/52087 of Al, WO of B1, WO of EP 0 858 478.

Therefore, the first surface of top flat/acquisition layer lamilate 245 can carry the material of Distribution Layer 54 or the suction of absorbent cores 28 Receive material 60.

Most of three-dimensional protuberances 250 can be in top flat/acquisition layer lamilate web 2450 or top flat/collection layer by layer Three-dimensional protuberance 250 in fit 245 more than 50% or more than 60% or more than 70% or more than 80% or more than 90% or More than 95% or more than 98%.

Absorbent article 20 may include lining ring hoop 32.The most of three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245 can Present at least in the region Chong Die with acquisition layer 52 of the top flat 24 in wherein top flat/acquisition layer lamilate 245.In addition, top flat/ The most of three-dimensional protuberance 250 of acquisition layer lamilate 245 also is present in acquisition layer 52 and top flat 24, be present in parallel to In the region that the axis of pitch 90 of absorbent article 20 extends.The most of three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245 May be present in the longitudinal axis 80 parallel to absorbent article 20 and extend but be not extended past wherein lining ring hoop 32 and be attached to absorption system In the region in the region of product 20 (being specifically attached to top flat 24), as shown in Figure 1.In said case, it is formed on top flat/adopt The most of three-dimensional protuberance 250 collected in fit 245 top flat 24 layer by layer is formed by the fiber of top flat 24.

Alternatively, the most of three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245 may be present in and be made parallel to absorbing The axis of pitch 90 of product 20 extends so that including in the region Chong Die with acquisition layer 52 of the region of the three-dimensional protuberance of top flat 24.Top The length in the region of the most of three-dimensional protuberance 250 of piece/acquisition layer lamilate 245 is than top flat/acquisition layer lamilate 245 The length wide 5% to 60% or 10% to 40% of acquisition layer 52.The most of three-dimensional protuberance of top flat/acquisition layer lamilate 245 May be present in the area of the most of three-dimensional protuberance for causing to include top flat 24 parallel to the extension of longitudinal axis 80 of absorbent article 20 In the region Chong Die with acquisition layer 52 of domain.The width in the region of the most of three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245 Width wide 5% to 60% or 10% to 40% of the degree than the acquisition layer 52 of top flat/acquisition layer lamilate 245.In the situation Under, it is formed on fiber of the most of three-dimensional protuberance 250 in the top flat 24 of top flat/acquisition layer lamilate 245 by top flat 24 Formed.

In another kind of alternative form, the most of three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245 can be only existed Top flat 24 in wherein top flat/acquisition layer lamilate 245 position Chong Die with acquisition layer 52, as shown in Figure 4.

Therefore, most of three-dimensional protuberances 250 can provide depth impression and can support the perception of caregiver, absorbent article 20 can well absorb liquid body exudates.

According to " protuberance method for testing height " as described below, the most of three-dimensional of top flat/acquisition layer lamilate 245 is dashed forward Going out portion 250 can have the protuberance height of measurement of 0.3mm to 5mm or 0.5mm to 3mm or 1.0mm to 2.0mm.

According to " protuberance base width method of testing " as described below, the great majority three of top flat/acquisition layer lamilate 245 Dimension protuberance 250 can have 0.3mm to 10mm or 0.5mm to 5mm or 0.5mm to 3.0mm or 1.0mm to 2.5mm or 1.5mm extremely The protuberance base width of the measurement of the three-dimensional protuberance 250 of 2.5mm.

Most of three-dimensional protuberance 250 with the shape including certain height and width can provide depth impression and can Support that the perception of caregiver, absorbent article 20 can well absorb liquid body exudates.

These three-dimensional protuberances 250 provide voidage, to receive liquid body exudates.Meanwhile, top flat/collection is layer by layer Top flat 24 and acquisition layer 52 in fit 245 can be in close contact, because top flat 24 and acquisition layer 52 are nested together.In addition, It is Distribution Layer 54 that top flat/acquisition layer lamilate 245 is also in close contact cutting optimal.Therefore, liquid body exudates are by more effectively Transmit to Distribution Layer 54 from top flat/acquisition layer lamilate 245, which improve top flat/acquisition layer lamilate 245 top flat 24 it is dry Dry degree.Bleeding back at wearer's skin is reduced.Top flat/acquisition layer lamilate 245 also allows for more efficiently using absorbent cores 28.Generally speaking, the top flat 24 of top flat/acquisition layer lamilate 245 can be relative to three be placed on the top of acquisition layer 52 Dimension top flat 24 has the aridity for improving.

Most of three-dimensional protuberances 250 may include the void area 253 of the skin for not contacting wearer.Compared to flat top Piece, absorbent article 20 can less contact wearer's skin.The void area 253 of top flat/acquisition layer lamilate 245 can help air Permeate between wearer's skin and top flat/acquisition layer lamilate 245.Therefore, the interstice coverage of top flat/acquisition layer lamilate 245 Domain 253 can improve the gas permeability of top flat/acquisition layer lamilate 245.

In addition to improving aridity, the void area 253 of top flat/acquisition layer lamilate 245 also allows for excrement and is inhaled Receive and gather in void area.In said case, the present invention is suitable to absorb relatively low viscous excrement.

Top flat 24 and acquisition layer 52 in top flat/acquisition layer lamilate 245 can be intimate contact with one another.

Width of the acquisition layer 52 on the direction parallel to axis of pitch 90 is less than top flat 24 parallel to axis of pitch 90 Direction on width.If top flat 24 is identical with the width of acquisition layer 52, liquid may occur below lining ring hoop 32 The wicking of body exudates.Therefore, liquid body exudates may not suitably be absorbed by absorbent cores 28, and this causes liquid body Effluent leaks out absorbent article 20.If the width of acquisition layer 52 is less than the width in the horizontal of top flat 24, acquisition layer 52 (it can receive liquid body exudates from top flat 24) directly can transmit liquid body exudates to Distribution Layer 54 so as to subsequent Absorbed by absorbent cores 28.Therefore, the liquid body stream being temporarily stored in the acquisition layer 52 of top flat/acquisition layer lamilate 245 Go out thing and will be easily detected by capillary force and aspirate and be drawn into below the lining ring hoop towards lining ring hoop 32.Therefore by making to adopt Width of the width of collection layer 52 less than the top flat 24 in top flat/acquisition layer lamilate 245 on the direction parallel to axis of pitch 90 Degree, can reduce seepage.

In order to help reduce seepage and bleed back, the width of the acquisition layer 52 of top flat/acquisition layer lamilate 245 can be unlike distribution Layer 54 width it is wide be more than 40% and/or the width width unlike absorbent cores 28 on the direction parallel to axis of pitch 90 be more than 20%.In said case, liquid body exudates can not be gathered or adjacent to the horizontal stroke of acquisition layer in the transverse edge of acquisition layer To edge accumulation.This prevent liquid body exudates to wick into below lining ring hoop 32.In fact, working as top flat/collection layer by layer Fit 245 acquisition layer 52 is wider than the width of absorbent cores 28 when being not more than 20%, and liquid body exudates can be readily transmitted To in absorbent cores 28, this effectively can be drawn into fluid in absorbent cores 28 from acquisition layer 52.This prevent liquid body outflow Thing is wicked into below lining ring hoop 32 from acquisition layer 52.

Acquisition layer 52 can receive the liquid body exudates through top flat 24, and can distribute them to following absorption Layer.In this case, the top flat 24 in top flat/acquisition layer lamilate 245 can have the hydrophily weaker than acquisition layer 52.Top The top flat 24 of piece/acquisition layer lamilate 245 can be easily dehydrated.

In order to strengthen the dehydration of the top flat 24 of top flat/acquisition layer lamilate 245, the pore-size of acquisition layer 52 can be reduced. For this purpose, acquisition layer 52 can be made up of the fiber with relative denier.Acquisition layer 52 can also have the density of increase.

This technique suitable for preparing absorbent article 20 may include following steps：In the horizontal in top flat/collection layer by layer The transverse edge of the first surface of fit web 2450 is everywhere or adjacent to the first table of top flat/acquisition layer lamilate web 2450 The transverse edge in face is by the part engagement of egative film web 2555 to top flat web 240.Top flat/acquisition layer lamilate web 2450 First surface transverse edge include any acquisition layer 52.When the part of egative film web 2555 is joined to top flat/acquisition layer During the part of the top flat web 240 of lamilate web 2450, acquisition layer 52 thus be encapsulated in top flat web 240 and egative film web Between 2555.

The technique may include the step of cutting into single absorbent article, and the absorbent article includes egative film 25, top flat 24 and adopts Collection layer 52, it is characterised in that top flat 24 and acquisition layer 52 are joined to form top flat/acquisition layer lamilate 245.

Top flat/acquisition layer lamilate web 2450 can be prepared in the specific location during technique is arranged.Therefore, top flat/adopt Layer by layer fit web 2450 may not be enough at the desired position of technique the dry-laying fibre for carrying Distribution Layer 54 to collection The dry-laying fiber 540 of dimension structure.

A kind of technique suitable for preparing absorbent article may include following steps：Offer is essentially continuously extended longitudinally Liquid permeable top flat web 240, top flat web 240 has：First surface and second surface；Essentially continuously along vertical To the egative film web 2555 of the liquid impermeable for extending；Acquisition layer 52 with first surface and second surface；Dry-laying Fibre structure；With the carrier layer web 170 with first surface 171 and second surface 172, as shown in Figures 9 and 10.Top flat web 240 and acquisition layer 52 include fiber.

Top flat web 240 and acquisition layer 52 are alignd with acquisition layer 52 with face-to-face relation so that the second of top flat web 240 Surface contacts the first surface of acquisition layer 52.Top flat web 240 and acquisition layer 52 can mechanically be deformed and be combined one simultaneously Rise.Top flat 24 and acquisition layer 52 are nested together so that be formed on most of three-dimensional protuberance in top flat 24 with by shape Overlap and fit together into the most of three-dimensional protuberance in acquisition layer 52, so as to provide with three-dimensional protuberance 250 Top flat/acquisition layer lamilate 245.The width of acquisition layer 52 is less than the width in the horizontal of top flat 24.Top flat/acquisition layer lamilate 245 first surfaces with the second surface for including acquisition layer 52.

The dry-laying fiber 540 of dry-laying fibre structure can be deposited on the first surface 171 of carrier layer web 170 On, as shown in Figures 9 and 10.The a part of engageable top flat to top flat/acquisition layer lamilate web 2450 of egative film web 2555 A part for web 240 so that the second surface 172 of carrier layer web 170 towards top flat/acquisition layer lamilate web 2450 or Egative film web 2555.

Therefore, in the process, no matter wherein prepare and provide top flat/acquisition layer lamilate web 2450, carrier Layer web 170 can there carry the material of Distribution Layer 54.

According to the method for preparing the three-dimensional structure of top flat/acquisition layer lamilate web 2450, when the He of top flat web 240 When acquisition layer 52 is mechanically deformed together, hole may be by mistake produced.When Distribution Layer 54 includes dry-laying fibre structure, The dry-laying fiber 540 of dry-laying fibre structure may pass through at gained top flat/acquisition layer lamilate 245 formed be not intended to Hole, and inadvisable the skin for contacting wearer.Expect to prevent the dry-laying fiber 540 of dry-laying fibre structure from wearing Cross the unintentionally hole of gained top flat/acquisition layer lamilate 245.

Carrier layer web 170 may be provided at top flat/between acquisition layer lamilate web 2450 and dry-laying fibre structure, As shown in Figure 9.In absorbent article 20, carrier layer 17 may act as barrier layer to prevent the dry-laying of dry-laying fibre structure Through the hole of top flat/acquisition layer lamilate 245, the hole is not intended to fiber 540 by top flat 24 with the three-dimensional machinery deformation of acquisition layer 52 Ground is formed, shown in such as Figure 11 and 12 (A-B).In addition, carrier layer 17 is also assisted in liquid body exudates from top flat/acquisition layer Lamilate 245 is transferred to dry-laying fibre structure.

The first surface 171 of the carrier layer 17 in absorbent article 20 can be at its longitudinal edge or adjacent to its longitudinal edge And it is attached to absorbent cores 28.Therefore, when carrier layer 17 is arranged on top flat/acquisition layer lamilate 245 and dry-laying fiber knot Between structure and when the first surface 171 of carrier layer 17 is attached to absorbent cores 28, the dry-laying of dry-laying fibre structure is fine Dimension 540 may not be escaped between carrier layer 17 and absorbent cores 28, as Figure 12 B are illustrated.17 pairs of suctions of carrier layer Receiving the attachment of the longitudinal edge of core 28 may include that the discontinuous patterning of the adhesive phase 173, adhesive of uniformly continuous applies Or a series of independent adhesive lines, adhesive helix or adhesive spots.

Alternatively, carrier layer web 170 may be provided between dry-laying fibre structure and absorbent cores 28, such as Figure 10 institutes Show.Therefore, the carrier layer 17 in absorbent article 20 can help distribute and be transferred to suction from Distribution Layer 54 by liquid body exudates Core 28 is received, as shown in Figs. 13 and 14, this allows more effectively to utilize absorbent cores 28.

Carrier layer 17 can be attached to top flat/acquisition layer lamilate at its longitudinal edge or adjacent to its longitudinal edge 245 first surface.Therefore, when carrier layer 17 is arranged between dry-laying fibre structure and absorbent cores 28 and carrier layer 17 be attached to top flat/acquisition layer lamilate 245 first surface when, the dry-laying fiber 540 of dry-laying fibre structure can Can reach in top flat/effusion between acquisition layer lamilate 245 and carrier layer 17.Carrier layer 17 is to top flat/acquisition layer lamilate The attachment of the longitudinal edge of 245 first surface may include the discontinuous patterning of the adhesive phase of uniformly continuous, adhesive Apply or a series of independent adhesive lines, adhesive helix or adhesive spots.

The technique may include the step of cutting into single absorbent article 20, the absorbent article include egative film 25, carrier layer 17, Top flat 24 and acquisition layer 52, it is characterised in that top flat 24 and acquisition layer 52 are joined to form top flat/acquisition layer lamilate 245.

The acquisition layer 52 of top flat/acquisition layer lamilate web 2450 can be along arranging with being longitudinally continuous.Top flat/acquisition layer is laminated Length of the acquisition layer 52 of body 245 on the direction parallel to longitudinal axis 80 can be equal to top flat 24 parallel to longitudinal axis 80 Direction on length.

Alternatively, the acquisition layer 52 of top flat/acquisition layer lamilate web 2450 can discontinuously be arranged along longitudinal direction.Top flat/adopt Collect length of the acquisition layer 52 of zoarium 245 layer by layer on the direction parallel to longitudinal axis 80 and be smaller than top flat 24 parallel to vertical Length on the direction of axis 80, as shown in Figure 1.When the length of the acquisition layer 52 in top flat/acquisition layer lamilate 245 is less than During the length of top flat 24, liquid body exudates can not be aspirated by the longitudinal edge 10,12 easily towards absorbent article 20, this Reduce seepage.

The acquisition layer 52 of top flat/acquisition layer lamilate 245 can be positioned in the proparea 36 of absorbent article 20 and at least In being partially positioned at crotch region 37, as shown in figure 15.In said case, by the acquisition layer 52 of top flat/acquisition layer lamilate 245 Being positioned in the proparea 36 of absorbent article 20 contributes to being gathered around the urine point of wearer and distributes liquid body exudates such as Urine.

The acquisition layer 52 of top flat/acquisition layer lamilate 245 can be positioned in the back zone 38 of absorbent article 20 and at least In being partially positioned at crotch region 37, as shown in figure 16.The acquisition layer 52 of top flat/acquisition layer lamilate 245 is positioned at into absorption system Contribute to gathering the excrement of wearer in the back zone 38 of product 20, especially when excrement has low viscosity.

When absorbent article when in use, the most of three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245 can be towards egative film 25 or towards wearer body project.

Most of three-dimensional protuberances 250 can be jointly formed one or more figures.The sense of caregiver can be supported with figure Know, the absorbent article can well absorb liquid body exudates.

In addition, most of three-dimensional protuberances 250 can also be jointly formed one or more figures such as logo, for example Pampers Heart logos.

Top flat/acquisition layer lamilate 245 is divided into first area and second area with being supposed to.First area may include court The three-dimensional protuberance 250 that egative film 25 is projected.Second area may include when absorbent article is projected when in use towards the body of wearer Three-dimensional protuberance 250.

For example, first area can be positioned in the proparea 36 of absorbent article 20 and be positioned at least partially at crotch region 37 In.

Projected towards egative film 25 by the three-dimensional protuberance 250 with first area, wherein top flat/acquisition layer lamilate 245 Can help gather liquid body exudates and liquid body exudates be absorbed to absorbent cores 28.By with second area, its In when absorbent article when in use top flat/acquisition layer lamilate 245 three-dimensional protuberance 250 towards wearer body project can change Kind body is not by the effect of effluent pollution.Therefore, the combination of first area and second area can allow absorbent article 20 Preferably play a role.

The top flat 24 of top flat/acquisition layer lamilate 245 can be coated with detergent composition.Detergent composition can be located between top In the region of the top flat 24 between the three-dimensional protuberance 250 of piece/acquisition layer lamilate 245.

Typical detergent composition for diaper is disclosed in United States Patent (USP) 6,426,444B2.Gained detergent composition can Top flat/acquisition layer lamilate is applied in the following way：Spraying, printing (for example, flexible version printing), coating (for example, are contacted Dip coating, intaglio plate coating), extrusion, microencapsulation or these apply technologies combination.

Most of three-dimensional protuberances 250 can be arranged on top flat/acquisition layer lamilate with any suitable arrangement In 245 whole plane.Suitable arrangement is included but is not limited to：Interlaced arrangement structure, He Qu.In some cases, push up Piece/acquisition layer lamilate 245 may include three-dimensional protuberance 250 and further feature portion known in the art (such as embossed portion and hole) Both.Three-dimensional protuberance 250 and further feature portion can be in independent zones, can be mixed or be overlapped.Mixing arrangement can appoint What suitable mode is produced.In some cases, mixing arrangement can be by using U.S. Patent Publication US 2012/ Technology described in 0064298 A1 (Orr et al.) is producing.In other cases, the arrangement of overlap can be by such as lower section Formula is produced：Form three-dimensional protuberance 250, subsequently make top flat/acquisition layer lamilate 2450 from it with convex forming element into Pass through between shape component and flexible surface, and apply pressure to web using formed parts and flexible surface.These are used to produce The technology of the raw arrangement for overlapping allows three-dimensional protuberance 250 and further feature portion to combine, therefore they are arranged on In diverse location on top flat/acquisition layer lamilate 245, or they can cause in three-dimensional protuberance 250 at least some three It is laminated that at least some features in dimension protuberance and the further feature portion (hole, embossed portion) are arranged on top flat/acquisition layer In same position on body 245.

Carrier layer

Carrier layer 17 may be selected from the group being made up of the following：Non-woven material, thin paper or film and combinations thereof.

Example for the nonwoven webs of carrier layer 17 may include various types of known nonwoven webs, such as spunbond Nonwoven webs, melt blown nonwoven web, spunbond-melt blown-spunbond nonwoven webs.These nonwoven webs are polymerized by thermoplasticity Thing is made.

Material for constituting the fiber of the nonwoven webs for carrier layer 17 may include various types of known fibers, Such as polyethylene, polypropylene, polyester and acryloyl group conjugate fibre such as polyethylene/polypropylene, polyethylene/poly- terephthaldehyde Sour second diester and polypropylene/PET, i.e., the fiber for being formed by core-sheath fiber and bilateral fibre.It is fine Dimension can be used alone or use in a joint manner.In addition, carrier layer 17 can also have single layer structure or sandwich construction.

Carrier layer 17 may include the thin paper by made by wet laid cellulose, and the wet laid cellulose includes having according to " wet The cellulose fibre and combinations thereof of " wet burst strength " of the 50g to 500g of Burst Strength Test Method ".

Carrier layer 17 can Jing surfactants process so that carrier layer 17 becomes hydrophilic.Carrier layer 17 can be by as above institute A kind of material stated in group is made, and the material has been chemically modified hydrophilic to become.Hydrophilic carrier layer 17 can Therefore the transfer of absorbent cores 28 of the liquid body exudates from Distribution Layer 54 to absorbent article 20 is improved.

Carrier layer 17 can have at least 5gsm to 60gsm or at least 5gsm to 20gsm or at least base of 5gsm to 15gsm Weight.

Carrier layer 17 can be coloring.Color can be given by pigment coloring to carrier layer 17.Term " pigment coloring " is wrapped Include any pigment suitable for giving nonwhite color to carrier layer 17.Therefore the term does not include " white " pigment such as TiO₂, the pigment is usually added in the layer of conventional absorbent article to give their white appearances.Pigment is usual when applying In being dispersed in chromatophore or substrate, such as being applied in ink, paint, plastics or other polymeric materials in.

Pigment can be for example incorporated in polypropylene masterbatch.Masterbatch includes the pigment of the high concentration being dispersed in mounting medium And/or additive, the pigment and/or additive and then can be used to colour or be modified as double groups for colouring by natural polymeric material Divide non-woven material.One example of the suitable color concentrate material that can be mixed is Pantone colors 270Sanylen Violet PP 42000634ex Clariant, it is a kind of PP resins with high concentration violet pigment.Generally, by carrier The weight meter of layer 17, the amount of pigment for being mixed can be 0.3%-2.5%.

Alternatively, color can be given to carrier layer 17 by the way that colouring agent is impregnated in substrate.Can such as gather in substrate Colouring agent such as dyestuff, pigment or combination are impregnated in the formation of compound, resin or non-woven material.For example, can be in film, fiber Or add a colorant to during long filament formation in the melt batch materials of polymer.

When absorbent article 20 is observed from top flat 24, the carrier layer 17 of coloring can provide enhanced depth impression to caregiver With the such impression for supporting to be given by three-dimensional protuberance 250, as long as the carrier layer 17 of coloring is visible from top flat 24.Therefore, The carrier layer 17 of coloring can support the perception of caregiver, and the absorbent article 20 can well absorb liquid body exudates.

For the same reason, the top flat 24 and/or acquisition layer 52 of top flat/acquisition layer lamilate 245 can be coloring.

Carrier layer 17 can be porous, can have relatively high permeability, and when the suction pressure in such as 20cm water columns With relatively high saturation levels when being exposed to fluid under power.The relatively high saturation levels of carrier layer 17 can be defined as Ratio between the volume of the liquid body exudates in the hole of carrier layer 17 and the total void volume of carrier layer 17.Carrier layer 17 can help provide the connectedness between the acquisition layer 52 and Distribution Layer 54 of top flat/acquisition layer lamilate 245.

In addition, carrier layer 17 may also include the hole of some relative small sizes so that the dry-laying fiber knot of Distribution Layer 54 The dry-laying fiber 540 of structure can be partially across the hole of carrier layer.Therefore, the dry-laying fiber of dry-laying fibre structure 540 can knit and contact the acquisition layer 52 of top flat/acquisition layer lamilate 245.Carrier layer 17 may include with 0.02mm to 10mm Size hole.

Mechanically deform portion and the three-dimensional protuberance of gained

The step of technique 100 for mechanically deforming together with acquisition layer 52 to by top flat 24 and combining related, may include Following steps：There is provided first and be intermeshed the intermeshing roller 212 of roller 211 and second, as shown in Figure 17,18A and 18B.

First intermeshing roller 211 of equipment 200 may include multiple ridges 215 and respective slot 216, the plurality of ridge and groove Circumference substantially incessantly around the first intermeshing roller 211 extends.

Second intermeshing roller 212 may include to be improved to the multiple rows of circumferentially extending of multiple rows of circumferentially-spaced tooth 217 opened Ridge and respective slot 218, wherein multiple rows of circumferentially-spaced tooth 217 opened in spaced relation around second intermeshing roller 212 at least a portion extends.

Top flat web 240 and acquisition layer 52 can be between the first intermeshing intermeshing rollers 212 of roller 211 and second mutually Mesh together so that the ridge 215 of the first intermeshing roller 211 is extended in the groove 218 of the second intermeshing roller 212, and And second the tooth 217 of intermeshing roller 212 extend in the groove 216 of the first intermeshing roller 211, so as to form top flat/adopt Collect zoarium 245 layer by layer.Therefore, the multiple variant parts including three-dimensional protuberance 250 are obtained.

The three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245 can be only formed top flat/acquisition layer lamilate wherein Top flat 24 in 245 overlaps the position of acquisition layer 52.

The first intermeshing intermeshing roller 212 of roller 211 and second can further by the high TH of tooth, pitch P and depth of engagement E Limit, as shown in Figure 18 A.The high TH of tooth can be from the top of the surface measurement to tooth 217 of the second intermeshing roller 212.The high TH of tooth can In the range of 0.5mm to 10mm or 0.5mm to 5mm.

Pitch P can be defined as from the top of the first tooth of the second intermeshing roller 212 measuring to the top of the second tooth Tooth is to space width.First tooth and the second tooth of the second intermeshing roller 212 can be located at transversely.Pitch P can in 1mm to 10mm or In the range of 1mm to 5mm.

Depth of engagement E is the first intermeshing roller 211 and the second intermeshing roller 212 is engaged with each other degree is measured.Nibble Closing depth E can measure to the top of tooth 217 from the top of ridge 215, and the tooth is transversely adjacent with ridge 215.Depth of engagement E can be In the range of 0.5mm to 10mm or 0.5mm to 5mm or 1 to 4mm.

Each tooth 217 of second intermeshing roller 212 can be limited by circumferential tooth long TL and tooth pitch TD, such as Figure 17 and 18B institutes Show.The long TL of circumferential tooth can be measured to trailing edge at crown from leading edge.The long TL of tooth can in 0.5mm to 10mm or 0.5mm to 4mm or In the range of 1mm to 4mm.

Each tooth is circumferentially separated from each other with tooth pitch TD.Tooth pitch TD can be measured to the second tooth from the leading edge of the first tooth Edge.First tooth and the second tooth of the second intermeshing roller 212 can be located in the vertical in same circumference.Tooth pitch TD can be in 0.5mm To 10mm or 0.5mm to 5mm or 1mm to 3mm.

Other orientations of tooth 217, groove 216,218 and ridge 215 are possible, such as along CD directions rather than MD directions.

Top flat 24 and acquisition layer 52 are nested together so that be formed on most of three-dimensional protuberance in top flat 24 with The most of three-dimensional protuberance being formed in acquisition layer 52 overlaps and fits together.

Top flat 24 and acquisition layer 52 can be extendable.Top flat 24 and/or acquisition layer 52 can be stretched, and not IPN Through the top flat or acquisition layer of corresponding rupture.

In general, the ductility for constituting the material of top flat 24 and acquisition layer 52 can be according to institute's phase of three-dimensional protuberance 250 The size of prestige is selecting.If it is desire to relatively large three-dimensional protuberance 250, then will select the material with of a relatively high ductility Material.

For example, according to as above " method of testing ", top flat 24 or acquisition layer 52 when disruptive force is reached or before energy Enough longitudinal axis and/or axis of pitch along absorbent article experience be equal to or more than at least 100% or 110% or 120% or 130% is up to 200% apparent elongation.

In some cases, it can be possible to be desired to have be dashed forward along the longitudinal axis of absorbent article or the larger three-dimensional of axis of pitch Go out portion 250.For this purpose, the material for constituting top flat 24 and acquisition layer 52 can therefore along the longitudinal axis and axis of pitch phase of absorbent article Than more extending, or vice versa it is as the same.

Top flat/acquisition layer lamilate 245 may include multiple three-dimensional protuberances 250.The plurality of three-dimensional protuberance 250 can court Distribution Layer 54 (referring also to Fig. 2) is prominent towards carrier layer 17 (referring to Figure 11, Figure 12).When three-dimensional protuberance 250 is towards Distribution Layer 54 During extension, the contact area between the acquisition layer 52 and following Distribution Layer 54 of top flat/acquisition layer lamilate 245 is changed It is kind.It is possible to increase transfer of the liquid body exudates from top flat/acquisition layer lamilate 245 to Distribution Layer 54.

Figure 19 A- Figure 19 F show the different alternative replacement scheme of three-dimensional protuberance 250.Annular protrusion can be one kind The three-dimensional protuberance 250 of type, see, for example, Figure 19 B.Annular protrusion can pass through the intermeshing work as described in immediately above Skill step is obtained using equipment 200.

Another type of three-dimensional protuberance 250 can be tunnel-type ring.In general, tunnel-type ring may include to form opening Pedestal, and also include leading edge 261 at opening and the opening at trailing edge 262, see, for example, Figure 19 C.

As illustrated in fig. 19 a and fig. 19b, in a ring the three-dimensional protuberance 250 of protuberance form may include interior three-dimensional protuberance 251A and outer three-dimensional protuberance 251B.The interior three-dimensional protuberance 251A of top flat 24 is nested in the outer three-dimensional protuberance of acquisition layer 52 In 251B.

Three-dimensional protuberance 250 can be made by the way that top flat 24 is intermeshed with acquisition layer 52 so that interior the three of top flat 24 The outer three-dimensional protuberance 251B of dimension protuberance 251A and acquisition layer 52 overlaps and fits together.

Interior three-dimensional protuberance 251A may include many fibrae circulares 254A of top flat 24.Outer three-dimensional protuberance 251B (interior three Dimension protuberance 251A is nested in wherein) may include many fibrae circulares 254B of acquisition layer 52.

Three-dimensional protuberance 250 may include void area 253, and the void area is not including the three-dimensional protuberance of any fiber A part of 251A.Three-dimensional protuberance 250 can be by the pedestal 256 of the opening for being formed adjacent to top flat 24, distal part 257 and Jie One or more side walls 255 between pedestal 256 and distal part 257 are limited.Three-dimensional protuberance 250 can by formed opening The protuberance base width WL of pedestal 256₁Limit, the protuberance base width is the interior three-dimensional protuberance from pedestal 256 Two opposing sidewalls measurement of 251A.Each three-dimensional protuberance 250 can be by the width WL of void area 253₂Limit, the width It is the Breadth Maximum measured between two opposing sidewalls of interior three-dimensional protuberance 251A.The width WL in space gap region 253₂Can More than the protuberance base width WL of the pedestal 256 of three-dimensional protuberance 250₁.Protuberance base width WL to pedestal 256₁With it is remote The width WL of side part 257₂The measurement of these yardsticks can be carried out on microphoto.When the protuberance base width of pedestal 256 WL₁Size be timing referred to herein, it will be appreciated that if opening is not in particular directions uniform width, protuberance Base width WL₁Measure in widest part office.

Most of three-dimensional protuberances 250 can be at pedestal 256 only with an opening.Top flat/acquisition layer lamilate 245 At least the 50% of three-dimensional protuberance 250 or at least 80% only can have opening at pedestal 256.Most of three-dimensional protuberances 250 Can be formed by the fiber of top flat 24 and acquisition layer 52.Most of three-dimensional protuberances 250 may include the pedestal 256, phase to form opening To distal part 257 and one or more the side walls between the pedestal 256 and distal part 257 of three-dimensional protuberance 250 255.Pedestal 256, distal part 257 and one or more side walls 255 can be formed by fiber so that most of three-dimensional protuberances are only There is opening at pedestal 256.Most of three-dimensional protuberances 250 can have conical by its shape, see, for example, Figure 19 B.

As shown in fig. 19 c, three-dimensional protuberance 251A and outer three-dimensional protuberance 251B can be by many fibrae circulares in each 254A, 254B make, and many fibrae circulares are in alignment with each other to produce tunnel-type ring 250 along vertical and horizontal, the tunnel-type ring With opening 261,262 also on each end in tunnel in addition to the opening at pedestal 256.In this case, pedestal 256 protuberance base width WL1 is relatively small.According to " protuberance base width method of testing ", the base of three-dimensional protuberance 250 The protuberance base width WL of the measurement of seat 256₁Can be in the model of 0.1mm to 1.2mm or 0.1mm to 1mm or 0.1mm to 0.5mm In enclosing.

In the region of three-dimensional protuberance, top flat 24 and/or acquisition layer 52 may include one or more discontinuities.This Or the formation of multiple discontinuities is attributable to the characteristic of top flat 24 and acquisition layer 52.Top flat 24 is relative to the fiber in acquisition layer 52 For mobility and/or fibrous extensions can for less extendable, or vice versa it is as the same so that in top flat 24 and/or acquisition layer Hole is initially formed in 52.

Therefore, as shown in Figure 19 D or 19E, acquisition layer 52 can be in the three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245 Region in be interrupted.The three-dimensional protuberance 251B of the acquisition layer 52 of interruption may include discontinuities 258.

In general, acquisition layer 52 can have the ductility lower than top flat 24.In such cases, acquisition layer 52 can start Rupture and formed discontinuities, i.e., compared with the fiber of top flat 24 is constituted, the fiber for constituting acquisition layer 52 is less extending and/or not It is too movable.

The three-dimensional protuberance 251A of the top flat 24 of non-interruption can overlap simultaneously with the three-dimensional protuberance 251B of the acquisition layer of interruption Fit together, as shown in Figure 19 D.In other words, top flat 24 is not pushed out through acquisition layer 52 so that top flat 24 not adopt by IPN Collection layer 52.

Alternatively, the three-dimensional protuberance 251A of the top flat 24 of non-interruption can be partly prominent with the three-dimensional of the acquisition layer of interruption Portion 251B fits together, as shown in fig.19e.

Equally, top flat 24 can be interrupted in the region of the three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245.

In general, top flat 24 can have the ductility lower than acquisition layer 52.In such cases, top flat 24 can start brokenly Split and formed discontinuities, i.e., compared with the fiber of acquisition layer 52 is constituted, the fiber for constituting top flat 24 can be less extending and/or not It is too movable.

In another kind of alternative form, top flat 24 and acquisition layer 52 can be prominent in the three-dimensional of top flat/acquisition layer lamilate 245 It is interrupted in the region in portion 250, and the three-dimensional protuberance of top flat 251A overlaps and pastes with the three-dimensional protuberance 251B of acquisition layer 52 It is combined.Discontinuities 258A in top flat 24 in the region of the three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245 will It is Chong Die with discontinuities 258B in the acquisition layer 52 in the region of the three-dimensional protuberance 250 of top flat/acquisition layer lamilate 245, As shown in fig. 19f.

When absorbent article 20 when in use, multiple three-dimensional protuberances 250 can towards wearer body project (referring also to figure 3).When three-dimensional protuberance 250 towards wearer body project when (when absorbent article 20 when in use), between top flat/acquisition layer Contact area between the top flat 24 of lamilate 245 and the skin of wearer is strengthened.Therefore, top flat/acquisition layer lamilate 245 to wearer provides cushion and the comfort for improving.

Figure 20 A- Figure 20 D show alternative replacement scheme, and its multiple such as annular protrusion of three-dimensional protuberance 250 of explanation can How from acquisition layer 52 to top flat/top flat 24 of acquisition layer lamilate 245 is prominent.In those alternative replacement schemes, in a ring The three-dimensional protuberance 250 of protuberance form may include interior three-dimensional protuberance 251A and outer three-dimensional protuberance 251B.Acquisition layer 52 Interior three-dimensional protuberance 251A is nested in the outer three-dimensional protuberance 251B of top flat 24.Interior three-dimensional protuberance 251A may include acquisition layer 52 many fibrae circulares 254B.Outer three-dimensional protuberance 251B (interior three-dimensional protuberance 251A is nested wherein) may include top flat 24 Many fibrae circulares 254A.

The 10cm of top flat/acquisition layer lamilate 245²Area may include 5 to 100 three-dimensional protuberances 250,10 to 50 Three-dimensional protuberance 250 or 20 is to 40 three-dimensional protuberances 250.

For top flat and the precursor material of acquisition layer

Top flat/acquisition layer the lamilate 245 of the present invention can be made up of any suitable non-woven material (" precursor material "). In some cases, top flat/acquisition layer lamilate 245 can be free of cellulosic material.For top flat/acquisition layer lamilate 245 Precursor material can have suitable characteristic to be deformed.The suitable characteristic of precursor material may include：The apparent of fiber stretches Deformation and drawing in length, fiber mobility, the region of the three-dimensional protuberance 250 for forming top flat/acquisition layer lamilate 245 wherein Stretch ability.Therefore, precursor material can experience mechanically deform, to guarantee that three-dimensional protuberance 250 will tend not to return to or return to The previous configuration for being laminated in the flat top flat 24 on flat acquisition layer 52.

Being suitable for use as some examples of the non-woven material of the top flat 24 for top flat/acquisition layer lamilate 245 may include But it is not limited to：Viscose non-woven material；Carded nonwoven；Can be easily deformed with having relatively specific characteristic Non-woven material.

A kind of non-woven material for being suitable for use as the top flat 24 for top flat/acquisition layer lamilate 245 can be extendable Polypropylene, polyethylene spunbonded non-woven fabrics.It is a kind of to be suitable for being knitted for the non-of top flat 24 of top flat/acquisition layer lamilate 245 Producing material material can be the spunbonded non-woven fabrics for including polypropylene and polyethylene.Fiber can include the blending of polypropylene and polyethylene Thing.Alternatively, fiber may include bicomponent fibre, such as sheath-core fibers, and it has the polyethylene on the skin of fiber and fiber Polypropylene in core.

The top flat 24 of top flat/acquisition layer lamilate 245 can have 8gsm to 40gsm or 8gsm to 30gsm or 8gsm extremely The base weight of 20gsm.

May include but be not limited to suitable for the non-woven material of the acquisition layer 52 of top flat/acquisition layer lamilate 245：It is spunbond non- It is non-woven that weaving material, the high loft nonwoven material of (" TAB ") combing of through-air bonded, spunlace non-woven material, water are knitted Material and resin bonded carded nonwoven.Spunbond PET is finer and close than carded nonwoven, bigger so as to provide The uniformity and opacity.Because PET is not very extendable, therefore can bonded nonwoven fabric so that work as material At least some fiber when material is strained in fiber easily can separate with bonding position, to allow fiber to be drawn out bonding position And rearrange.Such bonding, such as pressure bonding, can help the mobile and horizontal of increased fiber.In fact, fiber exists Tend to from bonding position pulling out under tension force.

Acquisition layer shows the base weight of 10gsm to 120gsm or 10gsm to 100gsm or 10gsm to 80gsm.

Top flat 24 and/or acquisition layer 52 can have 0.01g/cm³To 0.4g/cm³Or 0.01g/cm³To 0.25g/cm³Or 0.04g/cm³To 0.15g/cm³Density.

Top flat 24 and acquisition layer 52 can be bonded together before mechanically deform or during mechanically deform.If desired, Optionally between top flat 24 and acquisition layer 52 using adhesive, chemical bonding, resin or powder bonding or hot adhesion with The some regions or whole of top flat 24 and acquisition layer 52 are bonded together.Additionally, top flat 24 and acquisition layer 52 can also be in processing Period bonds, for example, by by the combing of top flat 24 to acquisition layer 52 and the combined layer of focus bonding.

Before any mechanically deform, top flat 24 could attach to acquisition layer 52.For example, top flat 24 can the He of top flat 24 wherein The position that acquisition layer 52 is overlapped is attached to acquisition layer 52.Attachment of the top flat 24 to acquisition layer 52 may include the adhesive of uniformly continuous Layer, the discontinuous patterning of adhesive apply or a series of independent adhesive lines, adhesive helix or adhesive spots.Top The base weight of the adhesive in piece/acquisition layer lamilate 245 can be 0.5gsm to 30gsm or 1gsm to 10gsm or 2gsm to 5gsm.

Example

Top flat and acquisition layer are attached to one another with hot-melt adhesive, and the hot-melt adhesive is with 5gsm by helical wire form Base heavy dressing add.Acquisition layer is centered on top flat and is positioned to the front MD borders with top flat relative to top flat 50mm.Top flat and acquisition layer are attached together to form composite web.

The top flat being attached together and acquisition layer by make they a pair be intermeshed roller 211,212 between pass through and Mechanically deformed simultaneously, see, for example, Figure 17.The top flat contact first of top flat/acquisition layer lamilate is intermeshed roller 211.Top The acquisition layer contact second of piece/acquisition layer lamilate is intermeshed roller 212.Ridge and groove have triangular shaped cross section, As Figure 18 A are illustrated.Pitch P of the roller is 0.100 inch (2.5mm).Second intermeshing roller 212 have be arranged Into the discrete tooth 217 of interlaced pattern.Tooth 217 has the uniform circumferential lengths yardstick TL of about 0.195 inch (4.9mm), each other Circumferentially evenly-spaced 0.162 inch (4.1mm) apart from TD, and the high TH of tooth with about 0.270 inch (10.6mm). The long side surface of tooth has the Sidewall angles with about 5 degree formed by vertical curve, and the leading edge and trailing edge of tooth have upright side walls.The One intermeshing roller 211 has the continuous ridge 215 that height is for about 0.270 inch (10.6mm).The top flat for being attached to acquisition layer exists With the depth of engagement (DOE) quilt of 0.135 inch (3.43mm) between the first intermeshing intermeshing roller 212 of roller 211 and second Intermeshing.

It is 0.11g/cm that the top flat of top flat/acquisition layer lamilate is density³Hydrophily coating one pack system high elongation rate Spunbond polypropylene (HES PP) non-woven material.One pack system HES PP non-woven materials for top flat have the totality of 20gsm Base weight.One pack system HES PP non-woven materials are applied first is covered with the finish paint by made by fatty acid polyethylene glycol ester, to produce Raw permanent hydrophilic one pack system HES PP non-woven materials.The top flat of top flat/acquisition layer lamilate have 168mm width and The length of 488mm.

The acquisition layer of top flat/acquisition layer lamilate is viscose non-woven material, and its base weight is 60gsm and density is 0.13g/cm³.Acquisition layer includes the PET/ of 7 daniers with the common PET ratios of 70/30 PET/ that Jing surfactants are processed Common PET (PET) tri-lobal bicomponent fibers.The acquisition layer of top flat/acquisition layer lamilate has 90mm's The length of width and 338mm.

Carrier layer is the common PET/PET tips tri-lobal bicomponent fibers with the common PET ratios of 90/10 PET/.Carrier The base weight of layer is 17.7gsm.Carrier layer has the width of 168mm and the length of 250mm.

For the prototype diaper of example

Diaper prototype for above-mentioned example is using commercially available in Russia from October, 2011 in October, 2012 Pampers Premium Care S4 (size 4) diapers prepare.Pampers Premium Care S4 (size 4) diapers Including between the acquisition layer below top flat, top flat, the Distribution Layer below acquisition layer, the egative film below acquisition layer and absorbent cores Absorbent cores.Diaper prototype for above-mentioned example is prepared using Pampers Premium Care S4 (size 4) diapers 's.

Pampers Premium Care S4 will be placed on for the top flat being attached together and acquisition layer of each example On the top of (size 4) diaper, business top flat and acquisition layer have been removed therefrom, be therebetween held in place Distribution Layer.It is right In each the diaper prototype based on above-mentioned example, top flat/acquisition layer lamilate is placed on and is dashed forward with the three-dimensional projected towards egative film On the top of the Distribution Layer for going out portion.

The hot-melt adhesive of helically line form is added in towards top flat/acquisition layer lamilate with the base heavy dressing of 5gsm On the surface of the carrier layer of acquisition layer.Acquisition layer leading edge is positioned to Distribution Layer leading edge at a distance of 10mm.Using heat fusing Adhesive will be attached to the top flat/acquisition layer lamilate of carrier layer and be attached on Distribution Layer and absorbent cores, the hot-melt adhesive Be applied to towards Distribution Layer carrier layer and top flat whole side on.Hot-melt adhesive is with 5gsm by helical wire form Base heavy dressing adds.

The three-dimensional protuberance of top flat/acquisition layer lamilate is projected towards egative film, because the top flat of top flat/acquisition layer lamilate connects Convex roller is touched, as mentioned above.

Each prototype diaper is compacted in bag with " height is stacked in bag " (i.e. the gross thickness of 10 two-fold diapers is as 90mm) In and continued for 1 week.Then open the bag, and before any test is carried out by the diaper taken out from bag at 23 DEG C At least 24 hours are nursed one's health under the relative humidity (RH) of +/- 2 DEG C and 50%+/- 10%.

According to corresponding " protuberance method for testing height " and " protuberance base width method of testing ", measurement top flat/adopt The protuberance height and the protuberance base width (table 1) of measurement of the measurement of collection three-dimensional protuberance fit layer by layer.

Table 1：The protuberance height of three-dimensional protuberance and the measurement of protuberance base width

Parallel determination	Protuberance height (mm) of Jing measurements	The protuberance base width (mm) of Jing measurements
			Mean value	1.40	2.00
Standard deviation	0.0	0.1

Method of testing

Wet rupture method of testing

" wet burst strength " used herein is when the deformation that fibre structure is soaked and undergoes relative to fibre structure plane When, the ability of its energy absorption is measured.

The wet burst strength of fibre structure (in the method for testing be referred to as " sample ") using electronics Burst Tester and The test condition specified is determining.To testing the results averaged for obtaining from 4 times, and for by single wet laid cellulose The record wet burst strength of fibre structure 55 of layer composition.

Equipment

- equipment：The ball of Burst Tester-Thwing-Albert Vantage Burst Tester or equivalent is resistance to broken Degree tester, wherein the ball is moved down during testing.Operation and setting explanation referring to manufacturer.Bulb diameter is 1.59cm, and a diameter of 8.9cm of chucking opening.

- calibrating weight-referring to the calibration explanation of manufacturer.

- for laboratory test, conditioning chamber temperature and humidity is controlled in following limit：

Temperature：23°±1℃

Relative humidity：50% ± 2%

- paper knife-cutting plate, 600mm sizes

- scissors -100mm or bigger

- disk-width/height/depth is about：240 × 300 × 50mm, or equivalent

Distilled water at a temperature of-conditioning chamber used

It is prepared by sample

Fibre structure 55 can unwind from roller.

Before it will be tested, sample to be tested is nursed one's health 24 hours in conditioning chamber.All tests are to adjust Reason interior is carried out.

Cut the sample so that they are for about the width of the length of 228mm and about 140mm.

Operation

According to explanation of the manufacturer to instrument, the Burst Tester instruments are arranged and calibrated.

The narrow edge of sample is caught, the center of sample is immersed in into the disk filled with distilled water (with top at a distance of about 25mm) In.Sample is set to rest on (± 0.5) second 4 in water.

Sample is maintained at into vertical position, while from the water that it is unnecessary that sample is drained and continuing for 3 (± 0.5) seconds.

The test should be carried out immediately after the draining step.Sample should not have in sample areas to be tested to be worn Hole, tearing part or defect.If having perforation, tearing part or defective part, restart test.

Sample is placed between the upper ring and a lower ring of the Burst Tester instruments.Sample is placed in the middle in some way And flatly it is positioned on the lower ring of sample fixing device so that do not exist in the sample lax.

The upper ring of pneumatic type of loweing fixing device, with fixed sample.

Start test.Test terminates in sample failure (rupture) when load declines 20g from peak force.Record maximum, force Value.

Depression bar will automatically fall back and return initial position.

Upper ring is lifted to take out and is abandoned the sample tested.

Repeat the code, until testing all duplicate.

Calculate

The number of the duplicate of the summation of wet burst strength=peak load reading/tested

Wet rupture event is recorded, is accurate to gram.

Protuberance base width method of testing and protuberance method for testing height

1) general information

" the protuberance base width of measurement " of the three-dimensional protuberance of the top flat of absorbent article/acquisition layer lamilate and " survey The protuberance height of amount " is using commercially available from GFMesstechnik GmbH (Warthestra β e 21, D14513 Teltow/Berlin, Germany) GFM Primos Optical Profiler apparatus measures.Also can be using with class As measurement and analysis principle alternative suitable non-contact surface topology contourgraph, herein illustrate GFM Primos。

The GFM Primos Optical Profiler instruments include being surveyed based on the compact optics of digital micro mirror projection Quantity sensor, it is made up of following critical piece：

A) the DMD projecting apparatus with 800 × 600 direct numerical control micro mirrors

B) CCD camera with high resolution (640 × 480 pixel)

C) it is suitable to measure the projection optical system of at least 30 × 40mm areas

D) it is suitable to measure the record optical system of at least 30 × 40mm areas

E) table tripod based on little admant plate

F) (a kind of appropriate unit is KL 1500LCD, Schott North America, Inc. to cold light source (Southbridge, MA))

G) measurement, control and the assessment computer of the softwares of ODSCAD 6.3 are run

Open cold light source.Setting value on cold light source is provided at least colour temperature of 2800K.

Computer, monitor are opened, and opens IMAQ/analysis software.In Primos Optical Profiler In instrument, " Start Measurement " (starting measurement) icon is selected from the taskbars of ODSCAD 6.3, then click on " Live Image (realtime graphic) button ".

According to the explanation of manufacturer, lateral (X-Y) and vertical (Z) size of the instrument are calibrated using calibration plate.It is such " calibration " is carried out using the rigid solid plate being made up of any matte material, and the plate has the width of the length of 11cm, 8cm The height of degree and 1cm.The plate has the passage of groove or processing, and the passage of the groove or processing has rectangular cross section, 11cm Length, the width of 6.000mm and 2.940mm exact depth.Length direction of the groove parallel to plate.After the calibration, The instrument allows for measuring the width scales and depth dimension of groove, is accurate to ± 0.004mm.

All tests are carried out in the conditioning chamber being maintained under 23 ± 2 DEG C and the relative humidity of 50+/- 10%.To be measured Surface can slightly be coated with very thin white powder spray liniment.Preferably, spray liniment is purchased from Helling GmbH The NORD-TEST Developer U 89 of (Heidgraben, Germany).

2)Protuberance base width method of testing

Extract top flat/acquisition layer lamilate from absorbent article in the following way：With the plane of tensioning, (what is stretched is flat Face) absorbent article is attached to flat surfaces by configuration, makes the top flat of top flat/acquisition layer lamilate upward.Cut off any leg elasticity Part binds round elastomeric element to allow the flat placement of absorbent article.Worn along the edge of top flat/acquisition layer lamilate using scissors The all layers crossed above absorbent cores (i.e. core wrappage) make two longitudinal cuts.Follow the front waist edge and low back of absorbent article Two cross sections are made through identical layer in edge.

Then top flat/acquisition layer lamilate and any other layer above absorbent cores are removed, top flat/acquisition layer should not be disturbed Lamilate.Can using freezing spray liniment (such as by CRC Industries, Inc. (885Louis Drive, Warminster, PA 18974, USA) manufacture CRC Freeze Spray) or equivalent auxiliary agent promoting removal of the superiors from absorbent article.So Top flat/acquisition layer lamilate and any other layer are separated afterwards, any other layer includes that any carrier layer is (such as non-woven Carrier layer, tissue layers)；If it is necessary, using freezing spray liniment.If Distribution Layer for example comprising paper pulp layer be attached to top flat/ Acquisition layer lamilate, then carefully remove the cellulose fibre of any remnants with tweezers, should not change acquisition layer.

By the top flat/acquisition layer lamilate (temperature and 50% ± 10% phase at 23 DEG C ± 2 DEG C with three-dimensional protuberance To nursing one's health at least 24 hours under humidity) i.e. " sample " be laid on rigid planar horizontal surface, make towards body to push up on the side The top flat of piece/acquisition layer lamilate is upwards.Sample is guaranteed with plane configuration placement, be not stretched, make sample uncovered.

Then the nominal outer pressure of 1.86kPa (0.27psi) is applied to sample.Such nominal outer pressure is to there is no harm in Hinder what topographical profiles applied in the case of measuring.Such external pressure be use it is transparent matt flatPlate is applied Plus, the plate takes advantage of 70mm and appropriate thickness (about 5mm) to realize the weight of 83g for 200mm.The plate is gently placed in On sample so thatThe central point of plate makes whole plate rest on sample away from any folding part at least 40mm. Folding part corresponds to the following part of absorbent article (such as top flat/acquisition layer lamilate), wherein for the purpose of encapsulation, it is described Absorbent article is folded.

By the metal weight (each has the quality (approximate thickness of 43mm) of 1200g) of two 50mm × 70mm lightly It is placed onOn plate so that the 70mm edges of each metal weight withThe 70mm justified margins of plate. By the gross weight (approximate thickness is 6mm) of the inner dimensions and 142g of the external measurement with 70mm × 80mm and 42mm × 61mm Metal tank bracket be positioned between two end counterweightsThe center of plate, makes most long side and the institute of the tank bracket State the most long side alignment of plate.

If sample is less than 70 × 200mm, or if there is no the sufficiently large region in unfolded portion, or if sense The region of interest is near the edge of sample and can not be analyzed with above-mentioned Plexiglas and counterweight setting value, thenThe X-Y yardsticks of plate and the metal weight for being added are adjusted to achieve the nominal outer of 1.86kPa (0.27psi) Portion's pressure, while keeping the visual field of 30 × 40mm of minimum.At least 10 of sample should be captured in the visual field of 30mm × 40mm Complete three-dimensional protuberance.

Projection head is positioned to be orthogonal to sample surfaces (being orthogonal to the top flat of top flat/acquisition layer lamilate).

The distance between sample and projection head are adjusted most preferably to focus on.

In Primos Optical Profiler instruments, release the button " pattern " so that Red Cross occurs in screen ten On word and black cross is occurred on sample.

Focus control is adjusted, until black cross aligns on screen with Red Cross.

Brightness of image is adjusted, digitized image is then captured.

In Primos Optical Profiler instruments, by the hole in the side of projector head and/or by Change camera " gain " sets to change the hole on camera lens on screen.

When the illumination is optimum, the red circle of " I.O. " is labeled as at bottom of screen will become green.

Click on " measurement " button.

The upper of top flat/acquisition layer lamilate sample is measured on the whole visual field of 30mm × 40mm by Plexiglas plates The pattern on surface.It is important that keeping sample transfixion image blurring unclear so as to avoid being captured in the time.Figure As 30 seconds ITs that should be after Plexiglas plates, metal weight and tank bracket are placed on sample.

After image is captured, the X-Y-Z coordinates of each pixel of 40mm × 30mm visual fields area are recorded.X side To for parallel to the direction of the longest edge edge of rectangular field, Y-direction is the direction of the most short edge parallel to rectangular field.Z side To for perpendicular to the direction of X-Y plane.X-Y plane is horizontal, and Z-direction is vertical, that is, be orthogonal to X-Y plane.

The median filter and 81 pixels of 11 pixels is taken advantage of to take advantage of 81 pixels using multinomial filter (n=6), 11 pixels Configured filter is flattening and filter these data.Multinomial filter (n=6) approaches X-Y-Z coordinates tables using 6 order polynomials Face, and difference is returned to into approached multinomial.11 pixel take advantage of the median filter of 11 pixels by visual field (40mm × 30mm) being divided into 11 pixels takes advantage of the X-Y of 11 pixels square.The picture of the center of 11 pixel square is taken advantage of positioned at given 11 pixels The Z coordinate of element replaces the average Z values that foursquare all pixels are given by this.81 pixels take advantage of the configured filter of 81 pixels to go Except the fluctuation of the structure, and by all Z peak values for belonging to the lower surface of Plexiglas plates move to top X-Y put down Face.

" datum plane " thus be defined as X-Y plane, it intercepts below the top X-Y plane 100 microns and entirely regards The topographical profiles of field (i.e. 30mm × 40mm).In Primos Optical Profiler instruments, in order to measure " datum plane " (Z=-0.1mm) " material area ", clicks on button " assessment ".Then, pre-filtering routine is applied using " filter " function, It include multinomial filter (n=6), 11 take advantage of 11 median filter and configured filter (n=81).With extension name " .omc " Image is saved in computer documents.

The above-mentioned code of identical is performed to top flat/acquisition layer lamilate, is made towards clothes (i.e. top flat/acquisition layer on the side The acquisition layer of lamilate is upwards), the visual field of the 40mm × 30mm is located at the identical X-Y positions of accurate top flat/acquisition layer lamilate Put place.

" dummy section " of datum plane can be defined as the region of " datum plane " above surface profile.With strictly Do not intersect with the border of visual field area (i.e. 40mm × 30mm) positioned at visual field area (i.e. 30mm × 40mm) inside or overlap " dummy section " on border is defined as " isolation dummy section ".For " isolation dummy section ", the protuberance base width of measurement is determined The diameter of maximum circle of the justice interior to be connected in given " isolation dummy section ".The circle should be only heavy with " isolating dummy section " It is folded.

In Primos Optical Profiler instruments, this can be carried out in the following way：Click on " picture circle ", And draw possible maximum inscribed circle circle in selected " isolation dummy section ".Click on " display sectional view ", can be via click The end of section map contour simultaneously then clicks on " horizontal range " measuring circle diameter to obtain protuberance base width.

For acquired image and digitized image, it is determined that the protuberance base width of all " isolation dummy sections ".So Afterwards, " the protuberance base width of measurement " is calculated as the arithmetic mean of instantaneous value of 6 maximum protuberance base widths.

3)Protuberance method for testing height

It is as laminated in extracted top flat/acquisition layer from absorbent article described in " protuberance base width method of testing " above Body.

Then nursed one's health and scanned under the pressure of 1.86kPa (0.27psi) top flat/collection for including three-dimensional protuberance Fit sample layer by layer, make towards body on the side i.e. the top flat of top flat/acquisition layer lamilate upwards, as above in " protuberance base Described in seat tilted object method ".

After image is captured, each pixel of the visual field area of the 40mm × 30mm is recorded and flattened/filter X-Y-Z coordinates, as above described in " protuberance base width method of testing ".Datum plane is also defined as existing above Datum plane described in " protuberance base width method of testing ".

In Primos Optical Profiler instruments, in order to measure " datum plane " " material (Z=-0.1mm) Area ", clicks on button " assessment ".Then pre-filtering routine is applied using " filter " function, it includes multinomial filter (n=6), 11 11 median filter and configured filter (n=81) is taken advantage of.Image is saved in by computer with extension name " .omc " In file.

Then top flat/acquisition layer lamilate is performed identical described in " protuberance base width method of testing " above Code, make towards clothes on the side (i.e. the acquisition layer of top flat/acquisition layer lamilate upwards), the visual field position of the 40mm × 30mm At the accurate identical X-Y location of top flat/acquisition layer lamilate.

" dummy section " of datum plane can be defined as the region of " datum plane " above the surface profile.With tight Lattice ground be located at visual field area (i.e. 30mm × 40mm) inside and not with the border phase of the visual field area (i.e. 40mm × 30mm) " dummy section " on the border handed over or overlap is defined as " isolation dummy section ".For " isolation dummy section ", " protuberance height " quilt It is defined as the minimum Z of the point with the top flat/acquisition layer lamilate surface profile for being located at the X-Y coordinate being somebody's turn to do in " isolation dummy section " The distance between Z values of value and top X-Y plane.

Click on " drawing N bar parallel lines " and draw the first line segment, the X-axis (visual field of first line segment parallel to visual field Most long yardstick direction), through " isolation dummy section " center and extend to outside " isolation dummy section " border." isolation The center of dummy section " corresponding to line segment middle part, the line segment parallel to visual field Y-axis and engage the maximum of " isolation dummy section " Y value and minimum Y value.Then it is input into " number " of the line to be drawn, and " distance " between the line is set as into 0.05mm. Need to draw enough lines to cover whole " isolation dummy section ".Make the averaging parameter be 0, then click on " really It is fixed ".Then click on " display sectional view ".Click on minimum Z values section map contour point, and click on " vertical distance " with Obtain protuberance height.

For acquired image and digitized image, it is determined that " the protuberance height " of all " isolation dummy sections ".Then, By the arithmetic mean of instantaneous value that the protuberance high computational of measurement is 6 maximums " protuberance height ".

Dimension disclosed herein and numerical value are not understood as being strictly limited to the exact numerical values recited.Conversely, unless in addition Indicate, otherwise each such dimension is intended to indicate that the value and around the functionally equivalent scope of the value.For example, it is disclosed as The dimension of " 40mm " is intended to indicate that " about 40mm ".

Unless expressly excluded or limit, by every herein cited document, including any cross reference or Patents or Patent application, is incorporated by reference in its entirety herein.The reference of any document is not relative to any presently disclosed to it Or the accreditation of claimed prior art herein, be not to its individually or with any other with reference to text Offer or the combination of multiple bibliography is proposed, advises or disclose the accreditation of any such invention.If additionally, art in this document Any implication of language or definition mutually conflict with any implication or definition that are herein incorporated by reference in the literature same term, Implication or definition that the term is given in this document are defined.

Although having illustrate and described the specific embodiment of the present invention, for those skilled in the art come Say it is readily apparent that multiple other can be made in the case of without departing from spirit and scope of the present invention and change and modification.Therefore, It is intended to cover all these changes and the modification belonged in the scope of the invention in claims.

Claims

1. a kind of absorbent article for personal hygiene, including：

Longitudinal axis, the axis of pitch perpendicular to the longitudinal axis, liquid permeable top flat and acquisition layer；

Wherein described top flat and the acquisition layer include fiber；

Width of the wherein described acquisition layer on the direction parallel to the axis of pitch is less than the top flat parallel to described Width on the direction of axis of pitch；

Top flat/acquisition layer lamilate, wherein the liquid permeable top flat and the acquisition layer into face-to-face relation, wherein institute The three-dimensional protuberance that top flat/acquisition layer lamilate includes extending from the plane of the top flat/acquisition layer lamilate is stated,

Wherein described top flat and the acquisition layer are nested together so that most of which three be formed in the top flat Dimension protuberance overlaps and fits together with the most of which three-dimensional protuberance being formed in the acquisition layer, to provide tool There is the top flat/acquisition layer lamilate of three-dimensional protuberance；

The top flat/acquisition layer lamilate has the first surface for including the acquisition layer；With

The egative film of liquid impermeable, the egative film of the liquid impermeable is positioned such that the top flat/acquisition layer is laminated The first surface of body faces the egative film.

2. absorbent article according to claim 1, wherein the absorbent article include being located at the top flat/acquisition layer it is laminated Dry-laying fibre structure or wet laid fibrous structure between body and the egative film.

3. a kind of absorbent article for personal hygiene, including：

Wherein top flat web and the acquisition layer include fiber；

The top flat/acquisition layer lamilate has the first surface for including the acquisition layer；

Carrier layer with first surface and second surface；With

The egative film of dry-laying fibre structure and liquid impermeable；And

Wherein described dry-laying fibre structure is located on the first surface of the carrier layer so that the institute of the carrier layer State the first surface or the egative film that second surface faces the top flat/acquisition layer lamilate.

4. according to absorbent article in any one of the preceding claims wherein, wherein the top flat and the acquisition layer are tight each other Contact.

5. the absorbent article according to any one of claim 1-4, wherein the absorbent article includes absorbent cores, and its Described in absorbent cores include absorbing material.

6. absorbent article according to claim 5, wherein by the gross weight meter of the absorbing material, the absorbing material bag At least 80% super-absorbent polymer is included, substantially 100% super-absorbent polymer is up to.

7. the absorbent article according to any one of claim 3-6, wherein the carrier layer is arranged on the top flat/adopt Between the fit layer by layer and described dry-laying fibre structure of collection.

8. absorbent article according to claim 7, wherein the carrier layer is attached to the absorbent cores and/or the top Piece/acquisition layer lamilate.

9. the absorbent article according to any one of claim 3-6, wherein the carrier layer to be arranged on dry-laying fine Described in peacekeeping between absorbent cores.

10. according to absorbent article in any one of the preceding claims wherein, wherein the top flat/acquisition layer lamilate can lead to Cross the technique for comprising the following steps to obtain：

(1) provide first and be intermeshed roller and the second intermeshing roller, in the described first intermeshing roller and described second mutual There is roll gap between nip roller,

The first intermeshing roller is included substantially incessantly around many of the described first circumference extension for being intermeshed roller Individual ridge and respective slot, the second intermeshing roller includes multiple rows of circumferentially-spaced tooth opened and respective slot, wherein described many At least a portion of the circumferentially-spaced tooth opened of row with spatial relationship around the described second intermeshing roller extends；

(2) by the top flat and institute at the roll gap between the described first intermeshing roller and the second intermeshing roller State acquisition layer to be intermeshed together so that the ridge of the first intermeshing roller extends to the second intermeshing roller The groove in, and it is described second intermeshing roller the tooth extend to it is described first intermeshing roller the groove In, to form the top flat/acquisition layer lamilate of the variant part for including forming three-dimensional protuberance.

11. absorbent articles according to any one of claim 5-10, wherein the absorbent cores include the encapsulating absorption The core wrappage of material, wherein the core wrappage is included towards the top side face of the top flat/acquisition layer lamilate and towards institute The bottom side of egative film is stated, wherein the absorbent cores are substantially free of the region of absorbing material including one or more, through described One or more are substantially free of the region of absorbing material, the part of the top side face of the core wrappage by one or Multiple core wrappage binding parts and a part for the bottom side that is attached to the core wrappage.

12. according to absorbent article in any one of the preceding claims wherein, wherein before the absorbent article is divided into being supposed to Area, back zone and the crotch region between the proparea and the back zone, wherein in the direction parallel to the longitudinal axis On, each of the proparea, the back zone and described crotch region are the 1/3 of the length of the absorbent article, wherein the top The acquisition layer in piece/acquisition layer lamilate is positioned in the proparea and is at least partially positioned at the crotch region In, or the acquisition layer in wherein described top flat/acquisition layer lamilate is positioned in the back zone and at least partly Be positioned in the crotch region.

13. according to absorbent article in any one of the preceding claims wherein, wherein most of which three-dimensional protuberance is described Fiber is generally in alignment with each other, to form tunnel-type ring.

14. according to absorbent article in any one of the preceding claims wherein, wherein the top flat or the acquisition layer are described It is interrupted in the region of the described three-dimensional protuberance of top flat/acquisition layer lamilate so that corresponding another non-interruption Top flat or the acquisition layer described three-dimensional protuberance top flat at least in part with the interruption or the institute of the acquisition layer State three-dimensional protuberance to fit together.

15. according to absorbent article in any one of the preceding claims wherein, wherein the top flat and the acquisition layer are described It is interrupted in the region of the described three-dimensional protuberance of top flat/acquisition layer lamilate, and the described three-dimensional of the top flat is projected Portion overlaps and fits together with the described three-dimensional protuberance of the acquisition layer, and wherein described top flat/acquisition layer lamilate Described three-dimensional protuberance the region in the top flat in discontinuities not with the institute of the top flat/acquisition layer lamilate The discontinuities stated in the acquisition layer in the region of three-dimensional protuberance overlap.