CN101522974A

CN101522974A - Non-woven structure and methods of making the same

Info

Publication number: CN101522974A
Application number: CNA2007800245238A
Authority: CN
Inventors: H·恩古耶
Original assignee: McNeil PPC Inc
Current assignee: Johnson and Johnson Consumer Inc
Priority date: 2006-06-29
Filing date: 2007-05-16
Publication date: 2009-09-02
Also published as: WO2008069838A3; RU2009102820A; ZA200900674B; WO2008069838A2; CA2656572A1; EP2041347A2; JP2009542930A; BRPI0713079A2; US20080003908A1; AU2007328466A1; KR20090036119A

Abstract

Provided are layered non-woven structures comprising a fibrous, water-permeable anchoring layer and a fibrous layer having fibers entangled about the anchoring layer, including patterned and non-patterned structures. Also provided are personal care.

Description

Non-woven structure and preparation method thereof

Technical field

The present invention relates generally to laminar composite.More specifically say, the present invention relates to have the useful laminated intensity and the laminar composite of one or more other beneficial properties, these character comprise drapability (drapeability), suspension property, ABRASION RESISTANCE, liquid-absorbent, flexibility and/or visual attraction.

Background of invention

Nonwoven material is widely used in comprising for example wiping cloth and feminine hygiene products, for example sanitary napkin, liner and tampon etc. among many commercially available personal care products.In many such application, wish that nonwoven material is wear-resisting, thereby in use keep the integrality of material.The applicant also recognizes, wishes that also this wear-resisting material has other useful character.

For example, the applicant recognizes, wishes also to be limited with in the high-abrasive material pattern of vision.These patterns can transmit such as information such as brand recognition and aesthstic standards, but also functional effect (fluid that for example will need to absorb is directed to suitable position) can be provided.Wish that also above-mentioned pattern in use has good definition and persistence.

The applicant also recognizes, is desirable to provide high-abrasive material, the high-abrasive material of patterning especially, and these materials have extra beneficial property, and for example " but drapability " is to provide comfortableness to the user.Term used herein " but drapability " is meant when an end of material is mentioned with cantilevered fashion, and this material is because gravity effect and with the trend of the appearance suspention of perpendicular.But the material with height drapability tends to adapt to the shape of abutment surface, user's skin surface for example, thus improve by dangle user's the comfortableness of the product that material constitutes of this height.The applicant also recognizes, wishes also that in some applications wear-resisting nonwoven material has bulkiness (being that density is low).

But the applicant further recognizes, but it is usually fine and close, slim, smooth relatively to have a conventional material of higher drapability feature, thereby lacking soft feeling, and soft feeling is that many products are desirable.For example, made many materials that can dangle relatively, but always there is defective in these materials aspect one or more in ABRASION RESISTANCE, laminated intensity, bulkiness or other character by the spunlaced technology of routine (being Hydroentangled technology).And the material that these routines can be dangled lacks visual pattern usually, and these visual pattern can be used for transmitting information to the user.

Therefore, the applicant recognizes, in the application of the goods of numerous species, and the nonwoven material that need have the unique combination of desirable high wear resistance and visual pattern feature.In addition, the applicant also recognizes, needs the peculiar methods of this material of preparation, and these methods include but not limited to produce these materials by the Hydroentangled technology of nonwoven material.

Summary of the invention

But the applicant has satisfied above-mentioned needs by the fibroid composite structure that preparation has the combination of unique and required higher laminated intensity and height drapability and/or low-density nature.

According to one side, the invention provides laminar composite, this laminar composite comprises that tensile strength is at least about the fibroid anchoring layer and the fibrage of entanglement around described anchoring layer of the fluid penetrable of 5N/5cm, described composite comprises entangled regions cross section and non-entangled regions cross section, and described entangled regions and non-entangled regions be difference mutually visually.

The method for preparing certain composite also is provided, this method comprises impels fluid stream to contact with comprising non-viscose fibre layer and the tensile strength layer structure at least about the anchoring layer of the fluid penetrable of 5N/5cm, described anchoring layer is configured to shelter at least in part the described non-viscose fibre layer from fluid stream, obtain comprising the composite in entangled regions cross section and non-entangled regions cross section, described entangled regions and non-entangled regions be difference mutually visually.

According on the other hand, the method for preparing laminar composite is provided, this method comprises impels the stream that flows to contact with comprising non-viscose fibre layer and the tensile strength layer structure at least about the anchoring layer of the fluid penetrable of 5N/5cm, layered structure obtains the support of landforms profiled surface, and is enough to make the contact time of layered structure layered structure to adapt to described landforms profiled surface.

Description of drawings

Referring now to accompanying drawing embodiments of the present invention are described, wherein:

Fig. 1 is the sectional view of an embodiment of laminar composite of the present invention described herein.

Fig. 2 is the sectional view of another embodiment of laminar composite of the present invention described herein.

Fig. 3 is the plan view from above of another embodiment of laminar composite of the present invention described herein, shows its extra feature.

Fig. 4 is the sectional view of the laminar composite that obtained by the line 3-3 among Fig. 3.

The sectional view of Fig. 5 has been described the formation according to the laminar composite of the method that adapts to each embodiment of the present invention described herein.

The sectional view of Fig. 6 has been described the formation according to the laminar composite of the method that adapts to each embodiment of the present invention described herein.

Fig. 7 is the stereogram that can be used for forming the shelter of the laminar composite that adapts to each embodiment of the present invention described herein.

Fig. 8 is the plane of a segment length of laminar composite 810 that adapts to the formation pattern of each embodiment of the present invention described herein.

The sectional view of Fig. 9 has been described to form according to the pattern of the laminar composite of each embodiment of the present invention described herein.

The specific embodiment

According to some embodiments, the present invention relates to a kind of laminar composite, this composite comprises the fibroid anchoring layer of fluid penetrable and the fibrage that fibre matting centers on described anchoring layer, compare with conventional non-woven structure, but described composite has the unique combination of one or more character in higher laminated intensity and higher drapability and/or the low-density (high loft or " bulk ").In some embodiments, the material of this uniqueness also has beneficial properties such as wear-resisting, lasting, soft, comfortable and/or absorbability.In some embodiments, these materials also can be used for providing various other advantages, comprise absorption of fluids or fluid isolation, cleaning and the ability of stripping off in multiple product.

Specifically, the applicant has measured according to the present invention the laminated intensity of the composite of some embodiment according to " the laminated strength test " hereinafter described in detail.It will be understood by those skilled in the art that, the higher laminated intensity level of gained represents that the ability of the fibrage antagonism mutual unsticking that the application of force caused of the anchoring layer of composite and the described anchoring layer of fibre matting is higher, and lower level closes intensity level and represents that then the ability of the unsticking that the two-layer antagonism application of force causes is lower.In addition, the applicant also recognizes, it is relevant with " persistence " of consumer's expectation of laminar composite that higher laminated intensity is tended to.According to some embodiment, the laminated intensity level of composite of the present invention be about 20 the gram or higher, more preferably from about 50 the gram or higher, even more preferably from about 100 the gram or higher.

The applicant also according to " but drapability test " of hereinafter describing in detail but measured the drapability of structure of the present invention, as skilled in the art to understand.The applicant recognizes that also in some embodiments, structure of the present invention not only has required high laminated intensity (as mentioned above), but and combination with higher drapability and above-mentioned character.Specifically, according to some embodiment, but the drapability of structure of the present invention (based on weight/, be preferably greater than about 6gsm/g MCB) greater than about 4 gram/meters squared per gram (gsm/g) or bigger, in addition more preferably from about 8gsm/g to about 16gsm/g.

The applicant has also measured the density of the composite of some preferred implementation of the present invention according to " density measurement " that hereinafter describe in detail, as skilled in the art to understand.The applicant recognizes that also in some embodiments, structure of the present invention not only has required high laminated intensity (as mentioned above), and the combination with lower density and above-mentioned character.According to some embodiment, the density of structure of the present invention is equal to or less than about 0.15g/cc, preferably is equal to or less than about 0.12g/cc, even more preferably from about 0.12g/cc arrives about 0.03g/cc.

According to some embodiment, the applicant recognizes, but except higher laminated intensity and higher drapability and/or more low-density combination, composite of the present invention also has one or more character of the group of being selected from down: the thickness of higher absorption capacity, advantages of higher tensile strength, expectation and two or more combination thereof.For example, In some embodiments of the present invention, the absorptive capacity of laminar composite is preferably greater than about 4g/g, more preferably from about 5g/g greater than about 3g/g.In some embodiments, composite (is measured according to " the tensile strength test " hereinafter described in detail along the tensile strength of machine direction, as skilled in the art to understand) be about 10N/5cm or higher, preferably about 15N/5cm or higher, more preferably from about 20N/5cm or higher.The thickness of composite of the present invention can be optimized according to the use of any various goods, and can adopt particular product any suitable/expectation thickness.Some preferred embodiment in, the thickness of composite of the present invention preferably less than about 5mm, is more preferably less than about 2mm less than about 10mm, in addition more preferably from about 0.3mm to about 2mm.

The sectional view of Fig. 1 has been described the laminar composite 100 with the corresponding to embodiment of each embodiment of the present invention described herein.This laminar composite 100 comprises the fibroid anchoring layer 110 of fluid penetrable and has the fibrage 122 of fiber 120 that at least a portion of described fibrage 122 is tangled around described anchoring layer 110.

The anchoring layer 110 of described fluid penetrable can comprise any suitable fibrous material of porous fluid." fluid penetrable " expression gas or liquid such as water (or other materials) can urge the cross section by the anchoring layer 110 of fluid penetrable, promptly pass the anchoring layer 110 of fluid penetrable and appear at the inner surface 114 of the anchoring layer 110 of fluid penetrable from the outer surface 112 of the anchoring layer 110 of fluid penetrable.Some preferred embodiment in, move through the anchoring layer 110 of fluid penetrable in order to impel fluid, the anchoring layer 110 of described fluid penetrable comprises the network of intercommunicating pore 116.Some preferred embodiment in, the percentage of open area is about 25% or higher in the anchoring layer.Preferably, the anchoring layer 110 of described fluid penetrable usually also tolerance impel high-pressure fluid such as water or air by the time dissolving and the mechanical degradation that cause.

In some embodiments, the anchoring layer 110 of fluid penetrable is thinner, and for example thickness is more preferably the 3-2000 micron less than about 2000 microns.The anchoring layer 110 of fluid penetrable can be any suitable basic weight.Some preferred embodiment in, the basic weight of anchoring layer is about 5-20gsm, more preferably from about 5-15gsm.And anchoring layer 110 preferred mechanical of described fluid penetrable are integrated, cause its tensile strength to be at least about 5N/5cm.In addition, expect the preferred degree of flexibility of anchoring layer higher (promptly tending to not have rigidity) of described fluid penetrable, but the applicant recognizes that this is of value to the drapability relevant with the material that mixes anchoring layer.

In preferred embodiment, the anchoring layer 110 of fluid penetrable comprises or is made of polymeric material basically, and for example Nian Jie fibrous material comprises spunbond or hot adhesion, as the material of (through-air bonded) by air bonding etc." " represent to bond together by the air flow that heats by the directed fiber of variety of way (as combing) by what air bondd." spunbond " extrude with fibers form and carry out melt spinning, reduces the diameter of extruding fiber fast by tractive then, makes the fiber quenching then by the thermoplastic polymer of fusing capillaceous that expression will be very thin from a plurality of spinning heads (being generally circular).The fiber that the fiber of spunbond is normally continuous.Suitable spunbond material is fibroplastic by the about 3-20 micron of diameter, and fibre length is greater than about 200 millimeters.The anchoring layer fiber can comprise following material, polyolefin for example, and as polypropylene, polyethylene, the bicomponent fiber that polypropylene, polyethylene form, or their combination.The fiber that can suppress spunbond then is to improve intensity or to reduce thickness.In preferred embodiment, the anchoring layer 110 of fluid penetrable comprises or is made of the material of spunbond basically.

The outer surface 112 of the anchoring layer 110 of fluid penetrable is wear-resisting basically surface." ABRASION RESISTANCE " expression outer surface 112 can tolerate the degraded of the elastic article (for example hand or other body surfaces) by outer surface 112.

Laminar composite 100 comprises fiber 120, and at least a portion of fiber 120 is tangled around the anchoring layer 110 of fluid penetrable.Fiber is preferably relevant with fibrage 122.Tangle around the fiber of the anchoring layer 110 of fluid penetrable preferably include interrelated or with the anchoring layer 110 (for example) of described fluid penetrable by related multiple fiber or the fibril of tangling.Like this, in fact the anchoring layer 110 of fluid penetrable is used as " skeleton " of laminar composite 100.

Fiber causes the bonding of the anchoring layer 110 of fibrage 122 and fluid penetrable about interface 124 usually around the entanglement of the anchoring layer 110 of fluid penetrable.Though roughly straight line is depicted at interface 124 as in Fig. 1, interface 124 has certain thickness usually.The character at interface 124 is the character of anchoring layer 110 distortions, knot, knotting that centers on fluid penetrable or the fiber that otherwise tangles.

Some preferred embodiment in, the fiber of anchoring layer 110 and the fibrage 122 that tangles around anchoring layer 110 is substantially free of the bonding that bonding that the fusing by fiber and/or anchoring layer 110 forms and/or employing chemical adhesive form.As used herein, expression that term " is substantially free of bonding that the fusing by fiber and/or anchoring layer 110 forms and/or the bonding that adopts chemical adhesive to form " less than the fiber of 10 weight % fibrages 122 by melting or chemical adhesive is bonded in anchoring layer 110.Preferably, be substantially free of the bonding that the fusing by fiber and/or anchoring layer 110 forms and/or adopt in the material of the bonding that chemical adhesive forms less than 5%, the fiber that does not more preferably have a fibrage 112 is by melting or chemical adhesive is bonded in anchoring layer 110.Though the applicant does not wish to be subjected to the constraint of any theory of operation, but believe by the bonding with the anchoring layer 110 of the fiber of fibrage 122 and fluid penetrable to be defined as physical entanglement rather than fusing bonding or chemical adhesive, the dangled degree of gained laminar composite 100 is higher.

Can select any fibrage 122 that is used in many fibers.The example of suitable fiber comprises the fiber of being derived by cellulose, polyester, artificial silk, polyolefin, polyvinyl alcohol, polyamide or other synthetic fiber, its two or more materials such as combination.Some preferred fiber comprises two or more combination of cellulose, polyester, artificial silk or polyolefin itself or its.The example of commercially available suitable fiber comprises Kai Erhan fiber company (the Kelheim Fibers available from the Kyle, Germany Chinese, Kelheim, Germany) " Galaxy " rayon fiber, or available from blue orchid official communication (the Lenzing AG of Co., Ltd that consults of Australia, Lenzing, days silk of Tencel Austria) (lyocell) fiber.

In some embodiments of the present invention, fiber comprises cellulose, for example wood pulp.In embodiments of the present invention, fibrage 122 comprises the wood pulp of about 0%-100%, more preferably from about 5%-50%.

The present invention some preferred embodiment in, the hydrogen bonded ability of wood pulp reduces.The wood pulp that the hydrogen bonded ability reduces can form by the following method, this method is included in the step of handling the wood pulp liquid liquid suspension under about 15 ℃-60 ℃ temperature with the aqueous solution of alkali metal salt of the about 2-25 weight of alkali metal salt concentration %, and the processing time is about 5-60 minute.The reagent that is fit to the causticity processing includes but not limited to: alkali metal hydroxide, for example NaOH, potassium hydroxide, calcium hydroxide, rubidium hydroxide, lithium hydroxide and benzyltrimethylammonium hydroxide.Especially preferred NaOH carries out alkali treatment, to produce the cellulose fibre that is fit to form superabsorbent fibers matter fiber of the present invention.Preferably use to comprise about 4-30 weight % NaOH (or any other suitable corrodent), more preferably from about 6-20 weight %, the most preferably from about aqueous solution of 12-16 weight % (in solution weight) processing wood pulp.Causticity is handled and can be carried out between bleaching, purifying and dry period or afterwards.Preferably, causticity is handled during bleaching and/or dry run and is carried out.The wood pulp that obtains like this is called as " causticity extraction wood pulp " or " mercerising processing wood pulp " sometimes.Be applicable to that commercially available causticity extraction wood pulp of the present invention for example comprises, Porosanier-J-HP, available from prompt this (the RayonierPerformance Fibers Division of Reynolds performance fibers branch in Georgia, Jesup, Ga.), Buckeye ' s HPZ, send (the Buckeye Technologies of Supreme Being scientific ﹠ technical corporation available from the Florida State, Perry, Fla.), and TRUCELL, available from (the Weyerhaeuser company of Weir Hansen Corp. in federal main road, the State of Washington, Federal Way, Wash.).

The present invention another preferred embodiment in, the wood pulp that the hydrogen bonded ability reduces is crosslinked." crosslinked " expression mainly is the cellulose fibre that chemical crossbond closes in the fiber.That is, crosslinked bonding mainly occurs between the cellulosic molecule of single fiber, rather than between the cellulosic molecule of different fibers.

Crosslinked fiber can form by several different methods, for example: authorized the United States Patent (USP) 3 of F.H.Steiger on March 11st, (1) 1966,241,553 described methods, this method comprises that to make fiber crosslinked and form the individuation cross filament in the aqueous solution that contains crosslinking agent and catalyst, or on (2) December nineteen sixty-five 21 authorize the United States Patent (USP) 3 of L.J.Bernardin, 224,926 described methods, this method comprises fiber impregnation with swelling in the aqueous solution that contains crosslinking agent, and by mechanism dehydration and defibre, and dried fibres is crosslinked to realize at elevated temperatures, obtain the individuation cross filament, fiber is in basically independently state simultaneously; And additive method.Be applicable to that commercially available crosslinked wood pulp of the present invention for example comprises, (the Weyerhauser Corporation of Weir Hansen Corp. in federal main road, Washington, Federal Way, Columbus's fibres modified Wash.) (Columbus Modified Fiber), grade #CHB416.

In some embodiments, laminar composite 100 preferably is substantially free of and weaves, the fiber of woollen yarn knitting, tufting or loop bonding, and promptly laminar composite preferably includes by fiber and directly forms but not fibrous material that yarn forms.

Except that fiber, fibrage 122 can comprise the various other materials that the manufacturing field of the nonwoven that uses in the absorbent article is known.For example, fibrage 122 can comprise polymer or other chemical fibres are decorated or granular materials, for example is distributed in the super absorber that is used to improve absorption of fluids character in the fiber, or helps pigment or other light reflective reagent of specific appearance.But fibrage 122 preferably is substantially free of rigidity that may improve composite or the chemical adhesive that reduces its drapability.

But the whole thickness aspect of fibrage 122 homogeneous or heterogeneous on fibrous.Some preferred embodiment in, fibrage 122 comprises heterogeneous mixture, for example comprises cellulose or synthetic fiber.At some other preferred embodiment in, fibrage 122 is homospheres, for example basically by cellulose fibre or be made of synthetic fiber basically.

The present invention some preferred embodiment in, the fiber of the above fibrage 122 of 50 weight % is made of greater than about 300 fiber length diameter ratio.Though these fibers can be staple fiber or continuous fibril, optimum fiber is a staple fiber.Fiber can be a cellulose fibre, for example wood pulp or cotton, synthetic fiber, for example polyester, artificial silk, polyolefin, polyvinyl alcohol, multicomponent (core-shell) fiber, and two or more combination.Can adopt suitable method, comprise the method that hereinafter describes in detail, fiber is arranged to interrelated.

Fibrage of the present invention can be any suitable basic weight.Some preferred embodiment in, the basic weight of fibrage 122 is about 20-200gsm, preferably about 20-150gsm.

In optional embodiment, as shown in Figure 2, fibrage 122 is made of multilayer or lamination itself.Fig. 2 has described the superiors' fibrage 210 and lower floor's fibrage 220.In one embodiment, the superiors' fibrage 210 comprises or is made of one or more synthetic fiber such as alkene or polyester or bicomponent fiber basically that lower floor's fibrage 220 comprises or is made of cellulose fibre basically.And, though Fig. 2 has only described by the two-layer fibrage that constitutes 122, also consider to have the extra layer of various compositions.

In addition, though Fig. 1 and 2 has described the anchoring layer 110 in the single fluid penetrable of laminar composite 110 1 ends, also be included in the anchoring layer 110 of second fluid penetrable of laminar composite 100 opposite ends in the scope of the invention, thereby form " sandwich " structure, one or more fibrages are clipped between the anchoring layer of two fluid penetrable together.In this configuration, there are two independently wearing faces.

Can adjust the character of laminar composite based on required character.For example, but common in order to realize than low-density and higher drapability, can select (for example) to be mainly polyester, artificial silk or its blend.If it is lower to be desirable to provide high absorptive capacity and cost, then can select to be mainly wood pulp.For all these character of balance, fibrage 122 itself can comprise the independent stratum of these materials.

In some embodiments of the present invention, laminar composite has visual pattern.Fig. 3 is the plan view from above that adapts to the laminar composite of embodiment of the present invention described herein.This laminar composite 100 comprises discrete elevated regions 300, and centering on around the elevated regions 300 has lower region matrix 310.Fig. 4 is the sectional view that is obtained by the line 3-3 among Fig. 3, discloses its each feature.Elevated regions 300 and lower region 310 be difference mutually visually, for example, when common perusal person is 12 inches observations at distance laminar composite 100, should be able to easily distinguish difference or contrast between elevated regions and the lower region 310.In an embodiment of the invention, the height 320 of preferred elevated regions 300 is about 0.1-5mm, 0.5-2mm more preferably from about, and length or width are at least about 0.5mm, more preferably at least about 1mm, most preferably at least about 3mm.

In an embodiment of the invention, elevated regions 300 does not tangle and bonds, and promptly the anchoring layer 110 of fluid penetrable and 330 places, interface between the fibrage 122 significantly do not bond in elevated regions 300.In these embodiments of the present invention, the anchoring layer of fluid penetrable 110 only exists in lower region 310 with the roughly bonding of fibrage 122, promptly along the interface 340.Like this, there are the cross section of entangled regions 360 and the cross section of non-entangled regions 350 (its boundary is represented by dotted lines) in the laminar composite 100 in Fig. 4.

Fig. 4 has described laminar composite 100, the cross section that it has the continuous cross section (matrix) of entangled regions 360 and roughly is positioned at a plurality of discrete non-entangled regions 350 in the continuous cross section of described entangled regions usually needs this configuration so that laminar composite 100 has enough tensile strength.Yet, also considered other configurations of elevated regions and lower region.For example, elevated regions can along the whole width of laminar composite 100 or length arrangement rather than with the form of zone of dispersion 350 by lower region 360 around or be located substantially in the lower region 360.And with respect to material shown in Figure 3, the implication of entangled regions and non-entangled regions can " be put upside down ", and for example entangled regions can roughly be positioned at non-entangled regions.

Some preferred embodiment in, laminar composite of the present invention is spunlaced structure.In other words, they are that preferably these methods are as described herein by material Hydroentangled or that " spunlaced " method obtains.The applicant finds that with the conventional fibre non-woven structure, especially conventional spunlaced structure is compared, but structure of the present invention has useful ABRASION RESISTANCE and unexpected good laminated intensity and/or drapability and/or density.The unexpected combination that these character are new provides the remarkable advantage of structure of the present invention in multiple application, and described application includes but not limited to personal care product, as feminine hygiene products and wiping cloth.

In an embodiment of the invention, layered composite can be used as the component of panty liner such as sanitary napkin or panty-liners.For example, laminar composite can be used as the surface layer or the integrated surface layer/absorbent core layer of panty-liners or sanitary napkin.

Some preferred embodiment in, the anchoring layer 110 of fluid penetrable can be towards user's health orientation in the laminar composite, thereby the anchoring layer 110 of fluid penetrable constitutes the part of panty liners towards body surface.Some preferred embodiment in, laminar composite can be used as the integrated surface layer/absorbent core layer of sanitary napkin or panty-liners.This integrated surface layer/absorbent core layer that laminar composite of the present invention constitutes is useful, but because this incorporate cover layer can improve ABRASION RESISTANCE, flexibility, absorbability and drapability, all these character help to improve user's comfortableness.

In an embodiment of the invention, adopt the component of fiber non-woven material, for example " baby wipes ", personal nursing/cosmetics wiping cloth or be used for personal cleanliness's wiping cloth (dried towel or wet tissue) or be used for the wiping cloth of lifeless object cleaning surfaces as wiping cloth.Laminar composite of the present invention can be used as the individual layer wiping cloth or at multiple layer wiping towel as one or more layers.Preferably, the wearing face of laminar composite is positioned on the outer surface of wiping cloth, contact user's skin.The wiping cloth that laminar composite of the present invention constitutes is useful, because wiping cloth not only has good ABRASION RESISTANCE (thereby having persistence) but also has flexibility, compressibility and absorbability.

Method of the present invention

In the multiple new method that laminar composite of the present invention can be found by the applicant any is prepared.For example, according to some embodiment, this structure can be prepared by the following method, this method comprises impels fluid stream to contact with layer structure, layered structure comprises the anchoring layer of fiber and fluid penetrable, and the location of the anchoring layer of described fluid penetrable can be sheltered fibrage at least in part and be avoided contacting with fluid stream.

Fig. 5 has shown the method for carrying out Hydroentangled (hydroentangling) step of one embodiment of the present invention.Hydroentangled step comprises provides fibrage 520, fibrage 520 to be laid on the screen cloth 590 (for example metal or plastic mesh), and screen cloth 590 is positioned at again movably on the conveyer (not shown).Term " layer " expression is compared with width 205 with the length of this assembly, and the thickness dimension is less fiber module significantly.For example, the thickness of layer 520 is approximately less than 10% of its width, for example approximately less than 2% of width.In preferred embodiment, fibre thin layer 200 is the plane basically, and thickness is less than about 20 millimeters, and example is preferably less than about 5 millimeters.The composition of fibre thin layer and character are with reference to above described in the fibrage 122 and shown in Fig. 1 and 2.

Fibrage 520 mutual non-bondings.Fiber in " non-bonding " expression thin layer 520 is loose mutually related, and the tensile strength of this layer is very low, for example less than about 5N/5cm.In optional embodiment, fibrage 520 bonding (for example loose bonding) mutually before spunlaced.

The anchoring layer 110 of fluid penetrable is positioned at the top of fibrage 520.Thereby the anchoring layer 110 of fibrage 520 and fluid penetrable forms target network material 550 to be tangled.In the operation, target network material 550 moves along machine direction in the scope of nozzle 530, and fluid stream 508 (preferred liquid, more preferably water) flow out from nozzle.Consider fibrage 520 with any suitable direction, with any suitable compression shock target 550 to form stable net material.Preferably, fluid stream 508 modes, directed shock ply under the pressure of about 500-5000psi along perpendicular.The for example about 20-0 degree of term used herein " perpendicular " expression, preferably about 10-0 degree, more preferably from about 5-0 degree, most preferably from about 0 degree.

Target network material 550 can with before fluid stream 508 contact, period of contact and/or contact after, move along machine direction with the speed of any suitable entanglement target.In some embodiments, stablize net material 210 with at least about 10 feet per minute clocks (fpm), for example the speed of about 50-250fpm moves along machine direction.

After the entanglement step was finished, the anchoring layer of fluid penetrable was tangled around fibrage, forms laminar composite of the present invention, in the above described manner and embodiment as shown in figs. 1 and 2 described.

Fig. 6 has described to be similar to the Hydroentangled of target network material shown in Figure 5, just impels fluid stream 508 shelter 600 by moving with respect to nozzle 530.Shelter 508 can rotate around a series of guide rails or roll shaft 660, thereby at each time point, makes 600 pairs of quasi-fluids streams 508 of shelter of diverse location.

Shelter 600 fluid flow 508 have the permeability of spatially-variable.Specifically, shown in Fig. 6 and Fig. 7 (stereogram of shelter 600), form the permeability of described spatially-variable by the pattern that comprises high osmosis part 620 and hypotonicity part 630.High osmosis part 620 can be open space (allowing all fluids basically by this high osmosis part 620).Perhaps, high osmosis part 620 can comprise the support screen cloth, and the described screen cloth 650 of Fig. 7 for example, this screen cloth are enough to provide machinery support to shelter 600, but can not hinder the fluid of signal portion fluid stream 508.In one embodiment, the open area of high osmosis part 620 accounts for 50% at least, more preferably at least about 65%.

Relatively, the hypotonicity part 630 of shelter 600 usually blocking-up most of or preferably all fluids that are in contact with it streams 508 avoid contact target net material 550.

At first time instant, when nozzle 530 was positioned at high osmosis part 620 tops of shelter, target network material 550 parts of nozzle 530 belows contacted with fluid stream 508 and tangle.On the contrary, at second time instant, when nozzle 530 was positioned at hypotonicity part 630 tops of shelter, target network material 550 parts of nozzle 530 belows did not contact (minimum contact perhaps takes place alternatively) with fluid stream 508, thereby keep non-relatively entanglement.

In the time interval that shelter rotates a circle fully (i.e. complete pattern circulation), the design transfer of high osmosis part 620 and hypotonicity part 630 forms the laminar composite of patterning on the shelter 600 on a segment length of target network material 550.An example of the patterning stratiform composite 810 of one segment length 800 as shown in Figure 8.Repeat this process then, produce the laminar composite of series of identical length, (for example by cutting) is separated from each other these materials then.

Attention is presented at the ramage of the non-projection of tangling on the background of homogeneous plane in Fig. 8.Note, if the hypotonicity part 630 of shelter 800 is not wide-openly (for example to comprise screen cloth, as shown in Figure 7), then the blocking part of some screen clothes in fact may " transfers " to the laminar composite the background characteristics 850 of formation small part projection, for example fine rule or cell, these background characteristics 850 are distributed in most of zone 860 of entangled regions, provide tensile force to laminar composite.

The length 800 (if lay on flat surface, i.e. the length of shelter) that has the laminar composite of repeat patterns above can change, and for example is about 50 centimetres to about 10 meters.The border of attention length 80 as shown in phantom in Figure 8.

Shelter 800 can be prepared by the whole bag of tricks known in the art.For example, shelter 800 can be prepared by selecting the etching metal flat board.This flat board can be formed by flexible aluminium, stainless steel or copper sheet, or is formed by polymeric material, comprises plastics or rubber (can strengthen), and its thickness is about 0.05 millimeter to about 0.5 millimeter.

Though Fig. 6-8 has described to form a kind of method of the laminar composite with visual pattern, has also considered additive method.For example, do not adopt the shelter that moves with respect to nozzle, but at some regioselectivity ground stopped nozzles, thus obtain and the lower region of tangling in abutting connection with or be dispersed in the thread or the bar of the elevated regions of the non-entanglement in the lower region of entanglement.

In another embodiment of the present invention, adopt the landforms profiled surface that visual pattern is provided.In these embodiments of the present invention, impel fluid stream to contact with the target network material of on the landforms profiled surface, supporting.The landforms support member generally includes a series of peak valleys and a series of perforate, for example is similar to United States Patent (USP) 5,827, the described landforms support member of 597 and 5,674,587 (all authorizing James etc.), and the content of this patent is included into this paper as a reference.A series of peak valley settings can be by any suitable technique, and technology such as for example machine drilling, laser drill, laser ablation, raster scanning, Laser Modulation form.

In the embodiment of the inventive method, comprise that the layer structure of the anchoring layer of fibrage and fluid penetrable is positioned on the landforms support member.The fluid conductance is to layer structure, is molded onto layer structure on the landforms support member and the anchoring layer that makes fibrage center on fluid penetrable is tangled.

Shown in Figure 9 one preferred embodiment in, the anchoring layer 900 of fluid penetrable directly contacts with landforms support member 910, fibrage 920 is positioned on the anchoring layer of described fluid penetrable.Like this, fibrage 920 anchoring layer of sheltering fluid penetrable at least in part avoids contacting with fluid.Fibrage 920 can comprise various materials, for example those that describe in the fibrage 122.

Another preferred embodiment in, fibrage comprises cellulose such as area, preferred above-mentioned mercerising is handled or crosslinked wood pulp.Another preferred embodiment in, fibrage 920 comprises at least two independently layers, for example is located immediately at the synthetic fiber layer 930 on the anchoring layer 900 of fluid penetrable and is located immediately at cellulose fibre layer 940 (for example wood pulp) on the long fiber layer 930.In this embodiment, fluid stream 508 impacts cellulose fibre layer 940 in succession, long fiber layer 930, and the anchoring layer 900 of fluid penetrable is impacted landforms support member 910 then.In these embodiments of the present invention, 900 barrier effects of the anchoring layer of synthetic fiber layer 930 and fluid penetrable prevent that the conduction hole 960 that short cellulose fibre forms in the landforms support member 910 from carrying.Therefore, staple cellulose fibers blocks conduction hole 960 and causes the chance of process difficulty very little.

Embodiment

The following examples are in order to set forth the present invention rather than to be intended to limit by any way the present invention.

Embodiment 1

Among each embodiment below, the 80 order metallic sieves that the target network material is placed on the rotational circle cylindricality cylinder form on the surface.The target network material comprises the anchoring layer of fibrous material layer and fluid penetrable.The anchoring layer of the fluid penetrable that adopts is the polypropylene layer of the 12gsm spunbond of buying from BBA web materials company (BBA Fiberweb).This fibrous material is based on 70% rayon fiber of each basic weight and the blend of 30% polyester fiber.Cylinder rotation so that fibrage move with the linear speed of 100fpm.The orientation of nozzle can be discharged pressurised stream with target assault target net material perpendicular to the target network material.Nozzle is configured to be arranged in a row at interval with the spray nozzle density of 30 nozzles of per inch.The all fibres layer is through the incipient stability processing, and the nozzle that makes water pass through 0.005 inch of each diameter in this processing is discharged under 600psi with loose viscose fibre, and the polypropylene with spunbond tangles then.Cylinder rotates 6 times fully, and the set point on the fibrage is arranged 6 times by nozzle.The hydraulic pressure of discharging from nozzle can change.

Adopt laminated strength test to measure the laminated intensity of each sample, process following (obtaining laminated intensity level (LSV)):

Downcut 1 inch * 1 inch the material sample (comprising anchoring layer and fibre matting fibrage) that needs mensuration around anchoring layer.With double-sided adhesive tape (Scotch double faced adhesive tape #666 type) this sample (about 1 inch * 1 inch of surface size) on two cubical surfaces of stainless steel is flattened, thus with specimen holder between two cube faces.The compacting at least 6 seconds under 5psi or higher pressure of two samples between the cube will be arranged on.Then, the cube crosshead is pulled away from, over time with Instron dynamometer ergometry with the crosshead speed of 2 inch per minute clocks.Laminated intensity level equals the peak load (relevant with the first peak on the Instron output pattern shows) of sample record.

But but the drapability below carrying out on various fiber non-woven structures test is to determine drapability of the present invention (basic weight/MCB).By the definite circular bend rigidity (MCB) that improves of the test of copying ASTM D 4032-82 circular bend process, this process is carried out sizable modification, carry out according to following steps.Described circular bend process is to make material that multi-direction distortion simultaneously take place, and wherein sample surface becomes concave surface, and another surface becomes convex surface.Described circular bend process provides the force value relevant with bending resistance, on all directions rigidity is averaged simultaneously.

The equipment of described circular bend process need is improved circular bend rigidity test machine, has with lower member:

1. polish level and smooth plate platform, be of a size of 102.0 millimeters * 102.0 millimeters * 6.35 millimeters, have the hole of 18.75 mm dias.The overlap joint edge in described hole is miter angle, and the degree of depth is 4.75 millimeters;

2. the total length of plunger is 72.2 millimeters, and diameter is 6.25 millimeters, and the pommel radius is 2.97 millimeters, outstanding 0.88 millimeter of needle point, the base diameter of pin is 0.33 millimeter, the tip radius of pin is less than 0.5 millimeter, described plunger and described hole are fixed with concentric manner, and the gap of each face equates.The effect of noting needle point only is to prevent that test sample book from taking place laterally to move at test period.Therefore, if needle point causes tangible negative effect (for example, puncturing charging component) to test sample book, then should not use needle point.The bottom of described plunger should be higher than the orifice plate top suitable distance.The downward stroke in pommel begins from this position to finish to the bottommost of orifice plate;

3. dynamometer more specifically is an Instron reverse compression load unit.The loading range of described load unit is about the 0.0-2000.0 gram;

4. actuator more specifically is the 1122 type Instron actuators that have the reverse compression load unit.(InstronEngineering Corporation, Canton Mass) make in the Ang Silang engineering company that described 1122 type Instron actuators are paused by state of Massachusetts card.

In order to carry out the following process of described test, each goods to be measured needs 3 representative samples.Select the position of the non-woven structure that will detect by the operator.37.5 millimeters * 37.5 millimeters test sample book under each cutting of the corresponding position of 3 samples.Before the cutting sample, remove all peeling papers or packaging material, and cover the adhesive of any exposure, for example the adhesive of clothes location usefulness with the non-sticky powder of talcum and so on.Talcum should not influence BW and MCB measures.

The tester should not fold or the crooked test sample, keeps minimum to the processing operation of sample is necessary, and is limited to edge, to prevent to influence counter-bending character.

The circular bend process is as follows.Sample at 21 ℃+/-1 ℃, was placed 2 hours in the room of relative humidity 50%+/-2.0%, made its balance.

Measure the weight (is unit with the gram) of respectively cutting test sample book, and divided by 0.0014 factor.This is a basic weight, and unit is gram/square metre (gsm).Basic weight value to each test sample book of obtaining averages, and provides average basis weight (BW).In above-mentioned formula, can use this average basis weight (BW).

Test sample book is placed on orifice plate central authorities under the plunger, make test sample book towards the layer of health towards plunger, and the barrier layer of sample is towards platform.Velocity of plunger is set at each stroke total length 50.0 cm per minute.At the zero point of check indicator, regulate when needing.Start plunger.In test process, should avoid touching test sample book.Record maximum force reading (being accurate to gram).Repeat above step, all test up to whole 3 test sample books.3 test values to record average, and provide average MCB rigidity.Can use this average MCB value in the above formula.But drapability be calculated as the average MCB value of basic weight divided by said determination.

Density measurement below carrying out on each fibre thin layer and fiber non-woven structure is to determine density of the present invention.

Cut out the material strips of 5 centimetres of width.For measuring the tensile strength along machine direction, it is machine-direction oriented that material strips is arranged to machine direction.For measuring the tensile strength transverse to machine direction, it is machine-direction oriented that material strips is arranged to transverse to machine direction.Adopt the Emveco gauge to finish test, the 0.07psi that exerts pressure, chi foot size is 2500mm ²The numeral demonstration is accurate to 0.0025 centimetre.5 times reading is averaged, and is designated as thickness.Lift gauge chi foot, outturn sample is placed on the datum level, make the sufficient center that approximately is positioned at the outturn sample interested position of chi of gauge.When chi foot is fallen, must prevent carefully that the chi foot from falling on the outturn sample or applied excessive power.The speed that chi is enough to 0.1 inch per second descends.Apply the load of 0.07p.s.i.g., about 10 seconds of stable reading to sample.Obtain the thickness reading then.At least 3 outturn samples are repeated this process, calculate average thickness then.Sample quality calculates density divided by volume (average thickness of length x width x said determination).

Embodiment 1A

The spunbond material layer is placed fibrage below (being that fibrage is between the anchoring layer of nozzle and fluid penetrable).Nozzle exit pressure is 1500psi.The net material moves through nozzle 4 times.The laminated intensity (LSV) of gained laminar composite is 25 grams (g), 0.77 millimeter of thickness, basic weight 85gsm, density 0.11g/cc, but drapability 7.9gsm/g.

Embodiment 1B

The spunbond material is placed the fibrage below.Nozzle exit pressure is 1500psi.The net material moves through nozzle 8 times.The laminated intensity (LSV) of gained laminar composite is 65 grams (g), 0.73 millimeter of thickness, basic weight 88gsm, density 0.12g/cc, but drapability 8.6gsm/g.

Embodiment 1C

The spunbond material layer is placed the fibrage top.Nozzle exit pressure is 1500psi.The net material moves through nozzle 4 times.The laminated intensity (LSV) of gained laminar composite is 32 grams (g), 0.90 millimeter of thickness, basic weight 90gsm, density 0.10g/cc, but drapability 9.1gsm/g.

Embodiment 1D

The spunbond material layer is placed the fibrage top.Nozzle exit pressure is 1500psi.The net material moves through nozzle 8 times.The laminated intensity (LSV) of gained laminar composite is 106 grams (g), 0.85 millimeter of thickness, basic weight 83gsm, density 0.10g/cc, but drapability 11.8gsm/g.

Embodiment 1E

The spunbond material layer is placed the fibrage bottom.Nozzle exit pressure is 2000psi.The net material moves through nozzle 4 times.The laminated intensity (LSV) of gained laminar composite is 47 grams (g), 0.79 millimeter of thickness, basic weight 86gsm, density 0.11g/cc, but drapability 8.5gsm/g.

Embodiment 1F

The spunbond material layer is placed the fibrage bottom.Nozzle exit pressure is 2000psi.The net material moves through nozzle 8 times.The laminated intensity (LSV) of gained laminar composite is 281 grams (g), 0.78 millimeter of thickness, basic weight 89gsm, density 0.12g/cc, but drapability 10.3gsm/g.

Embodiment 1G

The spunbond material layer is placed the fibrage top.Nozzle exit pressure is 2000psi.The net material moves through nozzle 4 times.The laminated intensity (LSV) of gained laminar composite is 205 grams (g), 0.86 millimeter of thickness, basic weight 83gsm, density 0.10g/cc, but drapability 12.5gsm/g.

Embodiment 1H

The spunbond material layer is placed the fibrage top.Nozzle exit pressure is 2000psi.The net material moves through nozzle 8 times.The laminated intensity (LSV) of gained laminar composite is 341 grams (g), 0.92 millimeter of thickness, basic weight 83gsm, density 0.10g/cc, but drapability 11.8gsm/g.

Embodiment 2

In each the following examples, place 80 order metallic sieves of rotational circle cylindricality cylinder to form on the surface target network material.The target network material is included in the fibrous material layer between the anchoring layer of two independent fluid penetrable.The anchoring layer of the fluid penetrable that adopts is the polypropylene layer of the 12gsm spunbond of buying from BBA web materials company (BBA Fiberweb).This fibrous material is based on 70% rayon fiber of each basic weight or wood pulp and the blend of 30% polyester fiber.Cylinder rotates so that fibrage moves with the linear speed of 100fpm.The orientation of nozzle can be discharged pressurised stream with target assault target net material perpendicular to the target network material.Nozzle is configured to be arranged in a row at interval with the spray nozzle density of 30 nozzles of per inch.Except wood pulp layer, the fibrage of all synthetic fiber is through the incipient stability processing, the nozzle that makes water pass through 0.005 inch of each diameter in this processing is discharged under 600psi with loose viscose fibre, and the polypropylene with spunbond tangles (being called " pre-bonding " in table 2) then.The number of times that cylinder rotates fully is variable.The hydraulic pressure of discharging from nozzle can change.

Comparative Examples 2A

Fibrage comprises wood pulp.Nozzle exit pressure is 600psi.The net material moves through nozzle 4 times.The gained laminar composite is 1g in the laminated intensity of top layer interface (near nozzle), and the laminated intensity of bottom interface (leaving nozzle farthest) is 1g, thickness 1.65mm, basic weight 204gsm, density 0.124g/cc, but drapability 1.47gsm/g.

Comparative Examples 2B

Fibrage comprises the wood pulp that mercerising is handled.Nozzle exit pressure is 600psi.The net material moves through nozzle 7 times.The gained laminar composite is 2g in the laminated intensity of top layer interface (near nozzle), and the laminated intensity of bottom interface (leaving nozzle farthest) is 1g, thickness 1.69mm, basic weight 197gsm, density 0.117g/cc, but drapability 1.35gsm/g.

Embodiment 2C

Fibrage comprises the wood pulp that mercerising is handled.Nozzle exit pressure is 1200psi.The net material moves through nozzle 4 times.The gained laminar composite is 41g in the laminated intensity of top layer interface (near nozzle), and the laminated intensity of bottom interface (leaving nozzle farthest) is 6g, thickness 1.42mm, basic weight 195gsm, density 0.137g/cc, but drapability 1.40gsm/g.

Embodiment 2D

Fibrage comprises the wood pulp that mercerising is handled.Nozzle exit pressure is 1200psi.The net material moves through nozzle 8 times.The gained laminar composite is 100g in the laminated intensity of top layer interface (near nozzle), and the laminated intensity of bottom interface (leaving nozzle farthest) is 31g, thickness 1.58mm, basic weight 207gsm, density 0.131g/cc, but drapability 1.25gsm/g.

Embodiment 2E

Fibrage comprises the wood pulp that mercerising is handled.Nozzle exit pressure is 1200psi.The net material moves through nozzle 16 times.The gained laminar composite is 255g in the laminated intensity of top layer interface (near nozzle), and the laminated intensity of bottom interface (leaving nozzle farthest) is 109g, thickness 1.32mm, basic weight 192gsm, density 0.145g/cc, but drapability 1.39gsm/g.

Embodiment 2F

Fibrage comprises the blend of synthetic fiber.Nozzle exit pressure is 1500psi.The net material moves through nozzle 4 times.The gained laminar composite is 23g in the laminated intensity of top layer interface (near nozzle), and the laminated intensity of bottom interface (leaving nozzle farthest) is 11g, thickness 0.95mm, basic weight 98gsm, density 0.103g/cc, but drapability 4.90gsm/g.

Embodiment 2G

Fibrage comprises the blend of synthetic fiber.Nozzle exit pressure is 1500psi.The net material moves through nozzle 8 times.The gained laminar composite is 35g in the laminated intensity of top layer interface (near nozzle), and the laminated intensity of bottom interface (leaving nozzle farthest) is 24g, thickness 0.89mm, basic weight 97gsm, density 0.109g/cc, but drapability 5.39gsm/g.

Embodiment 3

In each the following examples, sample placed have that " on the landforms profiled surface of a series of peak valleys of section's knitted fabric (" pattern (acetal axle sleeve), be similar to United States Patent (USP) 5,827 in the spy, described in 597, this patent also comprises the ramage of projection.The anchoring layer of the fluid penetrable that adopts is the 10gsm spunbond tissue layer of buying from BBA web materials company (BBA Fiberweb).Cylinder rotates so that fibrage moves with the linear speed of 100fpm.Nozzle is orientated perpendicular to fibrage, and is configured to be arranged in a row at interval with the spray nozzle density of 30 nozzles of per inch.Cylinder rotates 6 times fully, and the set point on the fibrage is arranged 6 times by nozzle.

Embodiment 3A

Fibrage 920 is that total basic weight is the pre-tack coat of the blend of 30% polyester fiber of 60gsm and 70% rayon fiber.The gained laminar composite has excellent laminated intensity and ABRASION RESISTANCE and sharply marginated figure.

Embodiment 3B

Repeat the experiment of embodiment 2A, just the mercerising of 90gsm is handled wood pulp layer (Porosanier is available from RJ Reynolds Tobacco Holdings ,Inc. (Rayonier Corporation)) and placed above-mentioned pre-bonding synthetic fiber layer top.Laminated good with graphic limit.

But table 1 has shown preparation and material and relevant density, laminated intensity and the drapability measured in the foregoing description.These values clearly show, but material of the present invention has high laminated intensity and one of high drapability or low-density or both unique combination valuably and unexpectedly.Also can know by table 1, can improve laminated intensity on the fibrage and still keep the height drapability but the anchoring layer of fluid penetrable placed.

Be also pointed out that for other similar process conditions when the anchoring layer of fluid penetrable was orientated, the laminated intensity between the anchoring layer of fluid penetrable and the fibrage was also higher unexpectedly above fibrage.But these high laminated intensity can not damaged drapability or density.

And table 2 also shows to have the highly material of wear-resisting " sandwich structure " of drapability, low-density and delamination resistance matter simultaneously but unexpectedly can form.Be surprised to find that also the material of the laminated intensity of this height can prepare, especially for higher basic weight under low nozzle exit pressure.

Table 1

Embodiment	The location of anchoring layer	psi	Number of pass times	Laminated intensity (g.)	Thickness (mm)	Basic weight (gsm)	Density (g/cc)	MCB (g.)	But drapability
Embodiment	The location of anchoring layer	psi	Number of pass times	Laminated intensity (g.)	Thickness (mm)	Basic weight (gsm)	Density (g/cc)	MCB (g.)	But drapability	1A 1B	The bottom bottom	1500 1500	4 8	25 65	0.77 0.73	85 88	0.11 0.12	11 10	7.9 8.6
1C 1D 1E 1F	Top layer top layer bottom bottom	1500 1500 2000 2000	4 8 4 8	32 106 47 281	0.90 0.85 0.79 0.78	90 83 86 89	0.10 0.10 0.11 0.12	10 7 10 9	9.1 11.8 8.5 10.3	1A 1B	The bottom bottom	1500 1500	4 8	25 65	0.77 0.73	85 88	0.11 0.12	11 10	7.9 8.6
1C 1D 1E 1F	Top layer top layer bottom bottom	1500 1500 2000 2000	4 8 4 8	32 106 47 281	0.90 0.85 0.79 0.78	90 83 86 89	0.10 0.10 0.11 0.12	10 7 10 9	9.1 11.8 8.5 10.3	1G 1H	The top layer top layer	2000 2000	4 8	205 341	0.86 0.92	83 90	0.10 0.10	7 8	12.5 11.8

Table 2

Claims

1. laminar composite, it fibroid anchoring layer and comprising that comprises that tensile strength is at least about the fluid penetrable of 5N/5cm becomes entangled in the fibrage of the fiber around the described anchoring layer, described composite comprises entangled regions cross section and not entangled regions cross section, described entangled regions and not entangled regions difference mutually visually.

2. composite as claimed in claim 1 is characterized in that, the LSV of described material is greater than about 20 grams.

3. composite as claimed in claim 1 is characterized in that, the LSV of described material is greater than about 50 grams.

4. composite as claimed in claim 1 is characterized in that, but the drapability of described material is greater than about 8gsm/g.

5. composite as claimed in claim 1 is characterized in that, but the drapability of described material is greater than about 16gsm/g.

6. composite as claimed in claim 1 is characterized in that the density of described material is less than about 0.15g/cc.

7. composite as claimed in claim 1 is characterized in that the density of described material is less than about 0.12g/cc.

8. composite as claimed in claim 1 is characterized in that, described anchoring layer is selected from down group: the material of spunbond, and by the material of air bonding, and two or more combination.

9. composite as claimed in claim 8 is characterized in that described anchoring layer comprises the material of the spunbond that is made of one or more polyamide fibers.

10. composite as claimed in claim 1 is characterized in that, fibre matting comprises cellulose fibre around described fibrolaminar at least a portion fiber of described anchoring layer.

11. composite as claimed in claim 10 is characterized in that, described cellulose fibre comprises wood pulp.

12. composite as claimed in claim 10 is characterized in that, described wood pulp comprises the wood pulp that mercerising is handled.

13. a personal care product, it comprises material as claimed in claim 1.

14. personal care product as claimed in claim 13 is characterized in that, described product comprises panty liner or wiping cloth.

15. personal care product as claimed in claim 13 is characterized in that, described product is a panty liner, and its surface layer comprises material as claimed in claim 1.

16. personal care product as claimed in claim 13 is characterized in that, described anchoring layer constitutes the surface of described panty liner towards health.

17. method that forms laminar composite, described method comprises impels fluid stream to contact with comprising non-viscose fibre layer and the tensile strength layer structure at least about the anchoring layer of the fluid penetrable of 5N/5cm, described anchoring layer is positioned to and shelters described non-viscose fibre layer at least in part, in order to avoid contact described fluid stream, obtain comprising the composite in entangled regions cross section and non-entangled regions cross section, described entangled regions and non-entangled regions be difference mutually visually.

18. also comprising shelter movably placed between described fluid stream and the layered structure, method as claimed in claim 17, described method avoid contacting described fluid stream to shelter described layer structure at least in part.

19. method as claimed in claim 17 is characterized in that, described fluid stream makes at least a portion fibre matting of described non-viscose fibre layer around described anchoring layer.

20. composite as claimed in claim 17 is characterized in that, described anchoring layer comprises the material of the spunbond that is made of one or more polyamide fibers.

21. method as claimed in claim 17 is characterized in that, at least a portion of described non-viscose fibre layer comprises cellulose fibre.

22. method as claimed in claim 21 is characterized in that, described cellulose fibre comprises mercerising processing wood pulp.