MXPA97001079A - A laminated material of mixed body novedoso, unmetodo to make it and products derived from me - Google Patents

Abstract

The present invention is directed to a mixed folded layer material comprised of a fabric, film, foam or combination thereof, having a first layer of flexible, reversibly stretchable material, joined in spaced apart positions to at least one additional layer of a flexible material, where both layers are folded, the folds of one layer are aparalelos to the folds of the other layer, the mixed material can be made, first, reversibly applying tension to the first layer and concomitantly reducing the first layer, in a coplanarly orthogonal direction to which the tension is applied, then the first layer which is taut and narrow, discreetly joins, in spaced positions, to at least one additional layer of a non-tense flexible material, comprised of a fabric, film or foam or a combination thereof, when these resulting materials in layers, taut and adhered, are subsequently released from the applied tension, form a three-dimensional mixed layered material, in which both layers are folded and the folds of one layer are aparalelos to the folds of the other layer, the layered mixed bodies of this invention can be used in the manufacture of different products, including, but not limited to, sanitary absorbent products, such as diapers, sanitary napkins, incontinence products, as well as bandages, wound dressings, surgical bandages, pads and bandages for the treatment of breast ulcers, surgical drapes, pads inferior and similar

Description

A LAMINATED MATERIAL OF A MIXED NOVEDOUS BODY, A PRIOR METHOD AND A PRODUCT DERIVED FROM IT FIELD OF THE INVENTION The present invention relates to a novel mixed material on layers, and more particularly to an inix + or layered, folded, crimped or gathered material. The mixed material is comprised of a first layer of a flexible material, in reversibly stretchable, such as for example a < ela, film, foam or combination thereof, attached to at least one additional layer of a flexible material as for example a fabric, film, foam or combination thereof, in spaced positions; where both layers are folded, L5 the pl Legues of one layer are to the folds of the other layer. The bodies in x + os in layers of the 3rd invention can be used in the manufacture of different products, including, but not limited to, sanitary absorbent products such as diapers, sanitary napkins, incontinence products, such as bandages, bandages for wounds, surgical bandages, alrnohadi Lias and bandages for the treatment of stasis ulcers, surgical drapes, lower pads and similar. < __ BACKGROUND OF THE INVENTION It is known in the art to manufacture folded, flexed materials, covering an elastic material taut with a second material, and securing the second material to the stretched elastic material, followed by the tension release step of the elastic material. In US Pat. No. 2,075,189, issued to Galligan et al., An early description of such material is given, a laminated, non-tense, intermittently woven web, wherein two continuous superimposed plies of rubber, one of which is low Stress and longitudinally stretched, pass between a pair of pressure rollers traveling at the same peripheral speed. One of the rollers L5 is provided with relatively small or narrow projections in a desired pattern. The projections cooperate with the second roller to press together, on adhesive contact, small portions of the two rubber folds; so that small areas relatively spaced close to the overlapping folds will be joined in a pattern similar to that of the projections on the pressure roller. Harwood in U.S. Patent 3,025,199 discloses a non-stretch stretch laminate fabric, specifically suggested for use in cleaning material and tolaLs, and expendable laundry material.

The Harood describes the formation of a fabric comprised of intersecting groups of threads or filaments that are joined together at their points of intersection to form a network of reticulated reinforcement, the threads or filaments are pr esently aesthetic. . A pair of nonwoven layers are preferably bonded to opposite sides of the reinforcing network fabric. The lamination of the non-woven layers and the t-eji is subsequently subjected to a stretching operation in one or more directions to permanently expand the non-woven layers. When the tensile forces of the stretching operation are eliminated, the reinforcing network is restored to itself and the outermost nonwoven folds exhibit stacking in the Z direction in the ureas where the non-woven layers do not join the reinforcement network. Sisson, in US Pat. Nos. 4, L07.3B4 and 4,209,563, discloses a preferred embodiment, which is a non-stretch stretch laminate comprised of at least one fold made substantially of relatively elastic synthetic elastomeric filaments and thus We also have a fold made of lengthened but relatively elastic synthetic polylaminates. Ness, in US Pat. No. 4,525,407 discloses disposable diapers and surgical gowns incorporating non-tense stretch laminated composite bodies consisting of a non-tense elastic member intermittently attached to one or more non-stretched substrates less extensible., the resulting Laminate being elasticized by means of stretching. If the laminate is stretched, the substrate undergoes permanent elongation and may become dislodged from any other substratum, but remains permanently attached to the elastic member, freeing itself from the applied tension forces, the elastic member causes puckering, that is, stacking in Z direction, of the substrate permanently elongated between the joining points. US Pat. No. 5,336,545, issued to Norman, describes a mixed material made by joining an inelastic material that has been subjected to tension until it is degolled to a wider width and joined to an elastic band. The mixed material is the material in a direction parallel to the direction of the throat cut and may stretch in that direction to the point of breaking the cutthroat material. Neither of the two materials comprises the mixed body that comes to fold. Curled or folded fabrics have also been described, for example in US Pat. 4, 720, ".15, issued to Taylor- and others and to Buell et al. In US Patent 5, 151, 092, where a traditional elastic member is applied to a backsheet which is then subjected to stress by mechanical stretching to permanently lengthen the backsheet and stretch the elastic member. 01 being released the elastic material produces a curled or folded material. Materials such as these include an elastomeric material that forms a stretchable elastic layer. With a stretched condition, another foldable layer is attached to at least one side of this material. Once two layers have been joined together, the layer is allowed to retract with it, and the foldable and elastic layer is folded and piled to form a tri-dimensional material. U.S. Patent 4,891,258, to Fahrenk rug, discloses a stylized mixed structure wherein the stretch layer may comprise a penetrable elastomeric film. The prior art of mixed bodies that are esthetic or contain eeti-rabies components, requires the presence of a reversibly elongate component, which provides reversible restoration forces, to join a relatively inelastic, less easily stretchable component, thereby creating a pleated, curled or stacking of the melastico component; the folding of the melastic component is orthogonal to the direction in which the laminate or elastic component extends, that is, in a direction towards the steering direction. Odona Lrnento, so that only the inelastic component gets folded, the elastic component remaining relatively unfolded. Where contraction can be achieved on both layers of a layered body, such as on some sides and elastic bands of disposable products of diapers and diapers, the folds of one layer being parallel to those of the other layer, both folds are orthogonal to the direction of stretching.

BRIEF DESCRIPTION OF THE INVENTION An object of < This invention is to provide a mixed material in folded, curled or piled layers, which has a plurality of layers, wherein at least two of the component layers of the instant body are folded, and wherein the direction of contraction of pors at least one of the folded component layers is aparalela to the direction of contraction of at least one of the other components. A further object of this invention is to provide a mixed, folded, layered material having a plurality of layers, wherein the material is a flexible, elastic, or relatively inelastic fabric, film, foam or combination thereof, wherein at least one of the component caps is reversibly stretchable and therefore tensable, that is, it is a, and is concomitantly and reversibly narrowed through its primary surface in a direction orthogonal to the applied voltage direction. An additional object of this invention is to provide a method of producing the mixed materials in folded layers of this invention. A further object is to provide novel absorbent products, derived from the layered, folded mixed materials of this invention. In accordance with the present invention, a novel multilayer mixed material is provided, comprised of at least two layers of a fabric, film, foam, or combination thereof, wherein the first layer is a Mexibie material, Reversibly extensible, tensioned, and which is joined in spaced positions to at least one additional layer of a flexible material, where both layers are folded, the folds of one layer are parallel to the folds of the other layer. Also, according to the present invention, there is provided a method of forming a folded multi-layer mixed material, having folds, curls or piles, comprising the steps of: First, applying tension to a first layer of a flexible, reversibly stretchable, tensioned material, such as, for example, a fabric, film, foam or combination thereof in an amount that is effective for stretching, ie, increasing its length beyond its non-stretched length, relaxed original in the applied tension direction, and also gives or results in a reduction of the width of the first layer to less than its relaxed original width, not taut in an approximately orthogonal direction of a coplanar-to the applied tension direction; During a tense state, adhering or otherwise securing the first layer in discrete spaced positions along at least a portion of the first layer, to at least one additional layer of a non-tense flexible material, such as for example a fabric, film, foam or combination thereof to form a mixed material in layers, and then releasing the tension on the first layer of the mixed material to form a mixed material in folded layers; the folds comprise raised portions of material extending perch and below the surface of the mixed material, and appearing in both, the first layer and in at least one of the additional layers, the folds of a layer are " parallel to the folds of the other layer. In accordance with the present invention novel absorbent products are provided which incorporate the layered mixed bodies of this invention, as component parts of these products, including but not limited to, diapers, sanitary napkins, incontinence products, as well as bandages, bandages for wounds, surgical bandages, pads and bandages for / = •). Treatment of ulcers is surgical, surgical pads, lower pads, and ,? m 11 w is.

BRIEF DESCRIPTION OF THE DRAWINGS Other characteristics and objects of this invention and those mentioned above, and the manner of reaching them will become evident and the same invention will be better understood with reference to the following description of embodiments of the invention taken in conjunction with the invention. the accompanying drawings, wherein: FIG. 1A is a schematic view of an apparatus for forming the mixed layer material of this invention. Figure 1E is a schematic diagram of an alternative version of the apparatus shown in Figure LA to form the mixed material in layers of <; - This invention. Figure 2fl is a schematic view of another apparatus for forming the mixed layer material of this invention. Figure 2E is an elongated plan view of a confi ruration of the < omponontes in the joining stage, used in the time shown f -.n figure A-I to form the mixed material in layers of this mvencLon. Figure 2C is an elongated plan view of an alternate configuration of the components in the joining stage in the housing shown in Figure 2R to form the mixed layer material of this invention. Figure 2D is a schematic LST of an alternative version of the apparatus shown in Figure 2R to form the mixed inateii l in layers of > .t ,. invention. Figure 2E is an enlarged plan VLsta of a configuration of the joining components used in the apparatus shown in Figure 2D to form the laminate material in layers of this invention. Figure 2F is an elongated plan view of an alternative configuration of the joining components used in the apparatus shown in Figure 2D to form the layered raw material of this invention. The figure . It is a plan view, before LO elongation, and concomitant orthogonal narrowing towards the direction of elongation, of a flexible stretch material used to form the mixed layer material of this invention. Figure 4 is a plan view of a stretchable material, after the stretchable material shown in the figure. has been elongated and concomitantly constricted orthogonally to the direction of elongation, intermediate to form the layer-like material of this invention. Figure 5 is a plan view of a flexible insole used to form at least one additional layer before joining the first layer to form the mixed layer material of this invention. Figure 6 is a perspective view of a mixed layered material of this invention, constituted by the stretchable material, shown in Figure 4, after having been elongated and constrictively constricted orthogonally to the direction of elongation, joined at least one additional and tension-free layer to form the layered raw material of this invention. Figure 7 is a perspective view of another mixed layer material of this invention. Figure 8 is a partial cross section of a perspective view of another mixed layer material of this invention. Figure 9 is a perspective view of sanitary napkin made with the mixed material in layers of this Li Convention. Figure LO is a perspective view of another sanitary napkin made with the mixed layer material of this invention. Figure 11 shows a perspective view of another sanitary napkin made with the layered material of this invention. Figure 12 is a partial cross section of a perspective view of a sanitary napkin comprised of an insert made of the mixed layered material of this invention.

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a novel, folded, layered mixed material; and more particularly to a folded mixed layer material that is comprised of at least two layers of for example, a fabric, film, foam or combination thereof, each of at least the two layers are folded, the folds of One layer is attached to the folds of the other layer. It is an important feature of the present invention that the folds appear in both the first layer and at least one additional layer, The folds of one layer are parallel to the folds of the other layer, where the aparalela relation of the folds of each layer to each other is described as follows. Each layer is approximately planarly parallel to any other layer. The folds of each layer have a directional alignment with each other in which they align their aligning parallel, that is, in the same direction between them. The angle of the alignment directionality, which the folds of b a layer make with the alignment di ff erence of the folds of the other layer, is preferably greater than 0 °, and preferably approximately 90 °. It is to be noted that the directionality of alignment of the folds of each layer exists in relatively The narrows of the mixed material can be used, for example, in a band of a sanitary napkin or the waistband of a diaper, as well as in relatively wide pieces of mixed material, as they can be used, for example, in the upper layer or the bottom layer of a sanitary napkin. It should also be noted that the directionality of alignment is better perceived, without recourse to amplification, in large areas of material, for example, approximately 0.5 square centimeters, than in small areas, such as narrow strips. These larger areas are particularly useful when you need to see the The alignment flexibility of the folds when the folds are in the form of, for example, gathered crimps or rather, for example, parallel folds, where the directionality of alignment is evident more rapidly. The present invention is also directed to a ??? novel method of making- a mixed material in layers, which • "" rende: Applying tension to a first layer, having a length and a width, of a flexible material comprised, at least in part, of a tensionable, reversibly stretchable material, such as for example a cloth, film, foam or combination thereof; the tension is of a magnitude that is effective to stretch, in approximately the direction of the tension, the first layer beyond its originally relaxed non-tense length dimension, and also to cause a pull-out of the first layer, in a direction approximatively coplanarly orthogonal to the direction of tension, beyond its non-tense wide dimension, relaxed originally. Reversibly stretchable means describing the property of a stretchable material, after having been subjected to tension to stretch the material and the tension being relaxed, where the material returns to at least about 8% of its pre-est dimension. rada While in a tense state, the first layer adheres or is otherwise secured, by joining means that are at least partially spaced apart in re s, at discrete spaced positions along at least one portion of the first layer, to at least one additional layer of a non-tense flexible material comprised for example of such material as a cloth, film, foam or combination thereof, to form a mixed material on layers constituted by example of a fabric, film, foam? combination of them »Then the tension is released in the first layer of the composite material to form a mixed material in layers, folded. It is to be noted, moreover, that at least the additional layer may undergo some tension and concomitant narrowing in the formation treatment of the mixed material of this invention. This tension and concomitant narrowing can be tolerated while it is insufficient to nullify the formation of folds in both the first layer and the additional layer, the folds of one layer being similar to the folds of the other layer. It is further to be observed that an important feature of this invention is that the application of tension in the first layer may be accompanied by a narrowing of the first layer, in a direction approximately coplanarly orthogonal to the direction of the applied tension. This is in accordance with the common practice in the art where steps are specifically taken to avoid a narrowing of the material in a direction coplanarly orthogonal to the direction of stretch, when dealing with a stretchable material that PS, either expressly placed under tension to stretch the material or this is coincidentally under some tension due to differences in tensions and velocities at which the material is subjected to being treated and subjected to treatment from one part of a treatment to another part of the treatment. Such conventional manufacturing steps include spreading, applying tension and holding the material in a stretched condition, not narrowing in the orthogonal direction by means such as laying with pins, fasteners or belts, and pulling the material in the orthogonal direction with an extender roll. cylindrical ribbed or with an arched cylindrical grid. The cylindrical spreading roller may have by channels not connected together, or connected as a continuous spiral around the cylindrical extension roller, or combinations thereof. The channels or spiral preferably have high friction surfaces, for example, of soft rubber. The channels are also preferably arranged, at acute angles, with respect to either side of the center side and the direction of rotation of the cylindrical extender roll. The surface of the arcuate cylindrical roller, on which the material intended to be maintained in a non-sticky condition passes, is preferably convex. Also, the surface of the arcuate cylindrical roller is preferably made of a high friction material, for example, soft rubber. Additionally, the material can be maintained in a non-narrow condition by means of pinch or pinch rollers which are applied to the material when traveling on the different cylindrical rollers described above. It is required that the materials useful for both layers of this invention, the first and the additional one, be flexible in the sense that they are capable of being bent or folded in order to be shrinkable. Fabrics, films, foams or combinations thereof useful for both layers of this invention may also include laminates of these materials. The first layer of this invention can be chosen from materials such as: fabrics, films, foams or combinations thereof elastic, reversibly alarpable or reversibly partially stretchable, tensionable; and fabrics, films, foams or combinations of the same inelastic reversibly lengthened or reversibly partially elongated. All the materials from which the first layer of this invention can be made, be subjected to tension and with which elongated, should be selected from those which are capable of undergoing a reversible narrowing in a direction approximately coplanarly orthogonal to the direction of the applied voltage. Therefore, the first layer of this invention should be stretched to such an extent, and constrictly narrowed orthogonally to the direction of the stress applied to such an extension, which allows tension and constriction to cause contraction of both layers, The additional and The first, respectively. The additional layer may be chosen from flexible materials such as: fabrics, films, foams or combinations thereof, elastic or inelastic, reversibly extensible or reversibly extensible in part, tenable; fabrics, films, foams or combinations thereof not reversibly lengthened, tight; and fabrics, films, foams or combinations thereof not extensible. Elastic materials - those capable of rapidly returning to approximately their initial dimensions and shape after having been deformed substantially by deforming force, usually a weak force, and withdrawal of such force. Elastic materials are those that are capable of undergoing tension and thereby stretching without exceeding their elastic limit and then returning essentially to their original dimensions and shape when the tension force is removed. Such films, fabrics and preferred melt foams are those capable of undergoing tension, with which they stretch at least 1% larger than their original length without reaching their elastic limit, the elastic limit being the first point in a curve of deformations in which occurs an increase in tension (here the stretch or lengthening), cm an increase in tension (here the force of tension), that is, where the material has been stretched but no longer returns to its original length. It is preferred that the fabrics, films or elastic foams be able to stretch, without reaching their elastic limit, of 1% at least about 60% larger than their original length and preferably between 5% to about 35% larger than their original length. It should be noted that elastic or inelastic materials can be used in this invention which are only partially extensible in a reversible manner, as long as there is sufficient reversibility of elongation and shortening reversibility in the materials to create the folds of this invention. The ability of a cloth, film or foam to stretch in at least one direction is required. This direction can be in the direction of the machine, the direction of the cross machine and directions between them; provided that the material is constrictively constricted in an approximately co-ordinate direction orthogonal to the direction in which the material is stretched. Fabrics, films and foams that are capable of elongating biaxially are also useful in this invention. In this way, the fabrics, films and reversibly stretchable, tensile foams useful in this invention may be capable of undergoing tension in a single direction, in two directions, or in a plurality of directions, eg, where the film or telu is stretched in both directions X and Y, in relation to its surface, as well as in its upward or Z direction, either in a specific area or in its entire surface. The foregoing, although it is important in the practice of this invention that biaxially elongating materials are subjected to tension in a first direction, v.gr-., The direction of the machine, and are also allowed to narrow in a second direction, v .gr-., the direction of the cross machine, which is coplanarly orthogonal to the first direction. However, if biaxially extensible materials are used, and are also subjected to tension in the second orthogonal direction, it is required that they be subjected to tension in the second direction to a degree that can be exceeded by the potential of the material to be recovered. expansion; and with it being able to expand coplanarly orthogonal to the direction of applied tension, from the narrowing that it experienced when it was under tension. Reversible extensible, tensile materials which are useful for the first layer and the additional layer are well known in the art and are represented by films, fabrics and elastic foams, as well as by films, fabrics and inelastic foams which are capable of undergoing tension apt to return in part to their dimensions and original shape when the tension force is removed. Useful materials for the sional layer may also include films, fabrics or non-stretchable foams. Suitable films suitable for the first layer and the additional layer of this invention can be chosen from those which are continuous, ie, non-perforated, or those which are perforated. Lae perforated films mvluyen: those that have openings that are either essentially in the plane of the film; having openings that are three-dimensional in the sense that they define walls of the openings extending beyond the plane of the film; and perforated films that have combinations € > The same in the plane of the openings and openings that, on three-dimensional.

Movies also means to include those that are enhanced. Enhancements include those that are long enough to be observed by the eye or sensed by touch; and also include loos that are not easily detected by the eye or by touch, e.g., microreaces that can give a matte finish to the film and can also give a feeling of fabric to the film. The elasticity, the elongability and the ability to narrow the films, generally increases, but not without exception, with reduced thickness, increased plasticity, increased number of openings and area occupied by the openings increased. Since then, also the chemical nature, molecular weight- and degree of cross-linking, plasticizer concentration and other factors impose the elasticity and lengthening of the film. Preferred are films that are approximately less than or equal to 10 millimeters in thickness; being most preferred films that are approximately equal to or less than 3 millimeters thick. Suitable fabrics useful for the first layer and the additional layer of this invention include flexible paper products such as tissue and flexible fabrics that are woven., interwoven or nonwoven. The tissue and the woven and woven fabrics may include those made from any of the different procedures known in the techniques of papermaking, weaving and weaving, respectively, and produce the different structures of tissue and fabric. and designs that are known in these techniques. However, they are 2.1 Particularly preferred are non-woven fabrics because of their cost and the wide range of properties that can be imparted to them through the forming and finishing processes and through the materials from which they are made. Suitable non-woven fabrics, as defined by the processes by which they are made, may include nonwoven fabrics wet laid, airlaced, spunbonded, meltblown, chemically bonded, thermally bonded, hydroentangled, and non-woven fabrics that originate from combinations of such procedures. It is likely that the non-woven fabrics will be rgables if they are of base weight, lightly bound or not at all, eg, non woven hi d oe raids, blown and lightly joined by spinning, thermally bonded and bonded chemically Chemically bound non-woven fabrics are more likely to be stretchable if they contain elastic and elongated fibers and contain elastic or frangible binders. The direction of the fibers, e.g., random as a result of air-laying, or unidirectional, as a result of carding, also determines the direction in which the non-woven will lengthen more easily and the ease with which it is It will lengthen in each direction. Fabrics of approximate basis weight equal to or less than 100 grams / square meters are preferred; most preferred fabrics of basis weight approximately equal to or less than * 20 grams / square meter. Suitable foams useful for the first layer and the additional layer of this invention can be chosen from flexible and elongatable, crosslinked and non-crosslinked foams. Such foams may be made from, but not re-classified to, polyester urethanes, polyether polyurethanes and polyether. The degree of elasticity will depend, in different degrees and parts, on properties such as the thickness, hardness and degree of plasification of the foam, and the degree to which the foam is reticulated, that is, if the foam cells are in contact with the foam. communication with each other or are isolated from each other by the walls of the foam cells. In general, but not without exception, the elasticity and the elongability increase with the decrease in thickness and hardness and with increase in plasticization and degree of reoculation. Of course, the chemical nature, molecular weight and degree of crosslinking, plasticizer concentration and other factors will also impose the elasticity and elongability of the foam. Foams of less than or equal to 6.35 millimeters in thickness are preferred; highly preferred being foams that are approximately equal to or less than J.W5 millimeters thick. Suitable films and elastic fabrics are those made of elastomeric materials such as natural and synthetic rubbers, elastomeric polyurethanes (TIN, by BF Goodrich a Co.), elastomer polyadenides (PEBRX, by fltochern Co.) and elastomer polyesters (HYTREL, by EI) DuPont de Nemours? Co.), block copolymers of eeti rene-butadiene-ethene, block copolymers of styrene-ethylene-but-lino-styrene, block copolymers of styrene-isoprene-styrene (examples of these block copolymers are those which bear the KRATON trademark of Shell Chemical Co.), non-crosslinked ethylene-acetyl acetate copolymers, ultra-high density polyethylene, blends, coextruded laminates, laminates of such materials, and combinations thereof . Elastic stretchable fabrics or films suitable for use in this invention include, but are not limited to, those made of materials such as full-length polyethylene, low and medium density polypropylene, polypropylene, non-crosslinked ethylene-vinyl acetate copolymers. , pol lides such as nylon 5 and nylon 66, polyesters, polyvinylidene chloride, polyvinyl chloride, polyester polyurethanes, polyether polyurethanes, and blends, co-extruded laminates, laminates of such materials, and combinations thereof. A preferred stretchable elastic film for use in this invention is the polyethylene film. The film may be non-perforated if for example it is used in a bathroom LA as a barrier or as a material component of the edges, wings or appendixes of the sanitary napkin. The preferred stretchable inelastic film may be perforated if for example it is used as a cover or fluid transfer layer or as a component material of the bands, wings or appendages. Serial choices can be made of perforated and non-perforated materials, their use and placement in each product, in the manufacture of other products such as, but not limited to, sanitary absorbent products, including diapers, incontinence products, as well as bandages. , bandages for wounds, surgical bandages, pads and bandages for the treatment of stasis ulcers, surgical drapes, lower pads, and the like. Suitable fibers and filaments for the fabrics useful for this invention may be chosen for the degree of elongation and desired elasticity. Since the filaments can be thought of as long fibers, the fibers and filaments referred to herein are referred to as fibers and are therefore considered to include both fibers as filaments. Fibers such as wool pulp, cotton, rayon, wool, linen, silk, ramie and jute are relatively non-stretchable and meltastic. Relatively more elongated and elastic are synthetic fibers such as polyethylene, polypropylene, pol ester, polyurethane ester, polyurethane polyether; and bicomponent fibers such as polyethylene and polypropylene, polyethylene and polyester, polypropylene and polyester and low and high melting point poly esters. In addition, fiber denier, transverse section, degree of crystallinity will also enhance its elongation and elasticity. The degree to which the fabric allows movement of one fiber with respect to another, and the flexibility, lengthening and elasticity of any linker that is used, if it is a thermal adhesive or linker, and if the same linker is elastic, also will impose to some degree the stretchability and elasticity of the fabric. The folded double body of this invention may optionally comprise a laminated structure made of more than two folds. The following examples of mixed bodies comprising more than two folds are presented without implying that they are restricted by such examples. For example, a laminated structure of three folds can be made where first a fabric, film or foam or combination of them stretchable, elastic or inelastic is applied, and on opposite sides thereof one of every two non-tense layers is attached. additional fabric, film or foam; or one of the two additional non-taut layers may be adhered to the taut layer followed by sequentially adhering the second of the two additional non-taut layers to the additional non-taut first layer; after which the taut layer relaxes to form a mixed layered mixed body. Alternatively, two layers of fabric, film or stretchable stretch foam may be adhered or secured, alternately one on each side or both on one side of an additional non-taut layer; After which the strained layers are allowed to relax to form a folded layer of layers. They can be similarly laminated to additional layers of fabrics, films and foams, taut and non-taut. One can substitute, by any layer of the mixed body, a component layer which is not to be contracted, by means such as attaching it to a layer or component after the taut mixed body or the taut layer has been released from tension; or using a layer made of a taut material that is not reversibly stretchable in the direction of the applied tension and reversibly narrowed orthogonal to the direction of the applied tension. The fabric, elastic or elastic stretch fabric or foam, and the additional fabric, film or foam -aa may be bonded or otherwise secured together by any of the conventional techniques known to secure two or more layers of each other. flexible sheet materials, and include, but are not limited to, the use of adhesives, heat sealing, ultrasonic bonding, radiofrequency sealing, mechanical crimping, cold flow pressure sealing and the like, and combinations thereof. The adhesive can be applied as a hot melt mixture, for example, by spray or through holes - spaced or through a slotted hole having spacers to separate - the existing adhesive in spaced-apart streams. Each coating stream or spray can be discontinuous or continuous. The adhesive can also be applied by screen printing or by transfer coating. Hot melt blend adhesives are preferred over solvent based adhesives by speed of application and elimination of the need to remove byproducts such as solvents and curing agent components. The adhesive can be applied to either or both of the fabric, film or stretch elastic or mellast foam, and the additional layer of fabric, film or foam. However, if the adhesive is used, it is preferred, for ease and accuracy of application, that it be applied to the additional layer of fabric, film or foam, since the additional layer is not taut or taut to a lesser extent than the first layer of material, and so it is more easily maintained in a flat position during the manufacturing process, although it may be inherently three-dimensional by virtue of being for example enhanced or having three-dimensional openings. Mechanically applied sealing methods such as heat sealing, ultrasonic sealing, radiofrequency sealing, mechanical crimping, cold flow pressure sealing, can be carried out with a heated roll or stamping plate having a surface with a pattern to which the appropriate energy is applied, that is, heat, ultrasound, radiofrequency, pressure or combination of them. The fabric, elastic or melastic stretch film or foam, and the additional layer of cloth, film or foam can be joined together in any manner or pattern of adherence or assurance provided by r >or at least partially spaced junction zones, that is, the adhesion or securing zones are separated from each other by areas of non-adhesion or assurance. The areas of adhesion or securing must be sufficiently broad to retain the integrity of the joint between the layers of the mixed material during manufacture or use. In practice, it has been found that this width is at least about 0.397 nm, and preferably at least approximately 0.793 nm. However, such areas should not be so wide as to severely reduce the areas of material that contract or compromise the ability of the material to contract. In practice, it has been found that the maximum width of the adhesion or securing zones is approximately 12.7 nrn, and preferably at p ro x i rna da e nt e 9.5 mrn. The manner and pattern of adhesion or securing provide areas where fabrics, films or bonded foams can relax to form pleats. Examples of the elements of such patterns of areas of adhesion or union are lines or bars spaced straight or curved, where the lines or bars can be continuous, or can be made from a series of points, dashes, chevrons, circles or other geometric forms, regimes and zigzags and the like, continuous and discontinuous, and combinations thereof. Examples of curved patterns are sinusoidal wavy lines or bars. The zones of non-adhesion or spacing between the elements of the adhesion zones can be varied from approximately 1,588 nm to 12.7 nm, and can be preferably between 3,175 mm and 9,525 inm. It should be noted that the space used is imposed both by the degree of contraction, the amount of material desired in the folds, as well as the quality of the materials used. In this way, more closed spaces can be tolerated between the elements of the areas of adherence or assurance when the material is relatively thin and flexible. As thick material requires the use of wider spacing between the elements of the areas of adherence or assurance. The general direction of the pattern of the areas of adhesion or bonding, if it is not random such as or for example discrete lines of adhesive in a spaced pattern, can be any angle towards the direction in which the tension is applied on the fabric, film or elastic foam ellastica or inelastica. When the elastic or inelastic stretchable fabric relaxes, it will be seen that the gathers reflect the pattern of the elements of the areas of adherence or assurance, eg, discrete points or lines where the lines may be continuous, discontented, regular, random, straight or curved, and where the angle that makes the pattern of elements of the areas with the direction pn that has been stretched The tola, film or elastic stretch foam, ie, parallel, orthogonal or any angle in the middle of them. It will then be seen that the resulting folds vary, for example, from a series of curls or wrinkles parallel to a pattern of gathered furrows of different sizes, shapes and profiles. It has been found that after relaxing the tension, it can be discerned that the folds have a pattern of directionality, eg, a series of curls or parallax wrinkles, then the pattern of folds along the plane of a layer, e.g., the fabric, film or elastic stretch foam is approximately orthogonal to the pattern of folds in the other layer at the Lar-go plane of that other layer. A preferred film useful in this invention is, for example, a stretchable or elastic, non-perforated or perforated polyethylene or polypropylene film. Examples of such perforated inelastic films are described in the following Patent Applications, and commonly assigned and incorporated herein by reference in their entirety: for Tur-i and others, "Textilelike Apertured Plastics Films", Canadian Patent Application 2,130,176; "Method of Forming Irnproved Aperfured Films, Resultant Apertured Films and Absorbent Products Incorporating Resultant Apertured Films"; for James et al., U.S. Patent Application No. 08 / 523,112; and for Burwell et al., "Apertured Fil Having Improved Fluid Distribu ion Properties, Method of Forming Same and Absorbent Products rncorporat ing Samo", US Patent Application No. 08/522, bOO; and "Absorbent Products", North American Patent Application No. 08 / 522,722. Other examples of perforated films are described in US 3,054,148 for Zi merli, US 4,690,679 and US 4,806,411 for Mattmgly and others, US 4,859,519 for Cabe and others, US 3,929,135 for Thomson and others, US 4,324,246 for Mullane and European Patent Application 0,304,617 for Kao. Corporation. The perforated film is subjected to tension and an additional permeable layer of fabric, film or foam is adhered JL to it, the areas of adhesion are separated from each other by zpnas of non-adhesion or non-assurance. Examples of such additional permeable layers of fabric, film or foam are nonwoven fabric, tissue, perforated film and cross-linked foam. The tension on the fabric, film or elastic or inelastic foam is then released to form a three-dimensional fluid permeable mixed body. Mixed materials in folded layers formed in accordance with such preferred films, when incorporated into an absorbent product, provide comfortable folded textures that have less contact with the body than planar structures. Mixed bodies also provide surprisingly improved fluid transfer properties as well as unique structural and spatial attributes, it has been found to be useful in the manufacture of different products, including, but not limited to, sanitary absorbent products, talus as diapers, toa ! Sanitary, incontinence products, as well as bandages, wound dressings, surgical bandages, pads and bandages for the treatment of stasis ulcers, surgical drapes, lower pads, and the like. Some structural benefits, as examples, are the properties of preventing crushing when wet and providing compression and breakage resistance to such products during use. This preferred embodiment of the perforated composite layered material of this invention has also been found particularly suitable for use in absorbent products, as cover layers and as intermediate fluid transfer layers. When at least a portion of the mixed material of this invention is non-perforated, it has been found useful in these products as barrier layers and as covers for bands, wings or appendages. When the mixed layered material has at least one perforated component layer, intermediate or intermediate fluid transfer layers and containment structures have been found useful in these products for such deodorants, fragrances, medicaments and superabsorbents. When the mixed material in layers is completely comprised of either perforated or non-perforated component layers or has both perforated and non-perforated component layers, it has been particularly useful as structures resistant to deformation and breakage. Examples of intermediary, laterally and vertically or bent fluid transfer layers are described in "Absorbent Articles with Plates," US Patent Application Serial No. 08 / 220,073 to Hsieh et al., And commonly assigned and incorporated herein by reference. whole as a reference. In accordance with this aspect of the invention, the folded mixed material is incorporated into sanitary napkins, adult incontinence products, bandages, and the like, now an absorbent product having a fluid pervious upper layer, a lower ca is provided. fluid impermeable, and an absorbent core therebetween, wherein the fluid pervious top layer comprises a perforated filled polyeth film that is first subjected to tension to stretch the film to a length that is at least 101% of its original length not tense, the film suffers concomitently est echamiento in a direction orthogonal to the direction of the applied tension; adhering a second fluid-permeable fabric, film or foam to the full-length film perforated by adhesion or securing means that are not at least partially separated from each other, at discrete spaced positions along at least a portion of the tensioned perforated film; and then releasing the tension on the perforated polyethylene film to give a product with a folded upper layer permeable to fluid. This mixed material in folded layers can comprise the lower layer, clothing coating, impermeable to fluid, to avoid leakage of the bottom and sides of the product. In such usesIt is preferred that either or both of the first, the film or elongate foam and the second fabric, film or foam be fluid impervious. The sanitary towel may have optional wings or appendages to fix the towel to the intimate garment. The folded mixed material of this invention may comprise all or part of the wings or appendages. The towel can also optionally contain enhancements or deep channels, to lift the absorbent center and thereby the upper layer permeable to fluid to make contact with the body, and channel the fluids longitudinally to avoid lateral leakage. The absorbent core of the towel may optionally contain a novel material of this invention in the form of laterally and uniquely biased intermediate fluid transfer layers and / or as containment structures for ingredients such as deodorants, fragrances and superabsorbents. In another embodiment of this invention, a sanitary napkin having a fluid-permeable upper layer, a fluid impermeable lower layer, and an absorbent core therebetween, and having folded longitudinal edges, which can optionally form vertical sidewalls, is provided. to inhibit leakage of fluid through the side parts of the sanitary napkin. The folded edges can be formed by applying tension to a first fabric, film or elongated foam, and then in its tense state, the fabric, film or elongate foam is conjointly narrowed, substantially in a direction orthogonal to the direction of the applied tension.; adhering a second fabric, film or foam to the stretchable fabric, film or foam by means of adhesion or securing that are at least partially separated from each other, in discrete spaced positions along at least a portion of the fabric film or stretch elongated foam, and then release the tension on the fabric, film or elongated foam to give a product with a folded double material where both layers are folded, the folds of one layer are aparaleios to the folds of the other layer . This folded mixed material can then be adhered or secured along the edges of a sanitary napkin. The same folded mixed material, before adhering or securing along the edges of a sanitary napkin, can be subjected to tension, the tension being released after adhering or securing to the lateral edges, thereby elevating and curving the folded edges, Vertical side walls or the same towel. The folded mixed material may also comprise the inner, garment-lining layer, impervious to fluid, to prevent leakage from the bottom and sides of the product. The sanitary napkin prepared in accordance with this aspect of the invention provides the sanitary napkin with soft pleated edges and / or vertical side walls which do not deform easily and which therefore act as substantial liquid barriers to prevent lateral leakage. In such uses, it is preferred that either or both of the first fabric, film or elongate foam and the second fabric, film or foam be fluid impervious. The sanitary towel can optionally have wings or appendages to fix the towel to the intimate garment. The folded mixed material of this invention can form all or part of the wings or appendages. The towel may also optionally contain enhancements or deep channels, to lift the absorbent center and thereby the fluid-permeable top layer to contact the body, and to channel the fluids longitudinally to prevent Later-aL leakage. Without restricting the invention in any way, the following are examples of processes that have been found to be suitable for making the folded, pleated material of this invention. Figures IA and IB are schematic views of an apparatus 22, and an alternative apparatus 22A to the apparatus 22, respectively, to form the layered material of this invention. The same designation numbers are given to analogous or similar elements in each figure. Referring now to Figure 1A, the process requires at least a first layer 2, of a substantially reversible, flexible, stretchable material such as a cloth, film or foam, and a second layer 4 of a flexible material, such as a cloth, film or foam. The two layers can be made of different materials or the same material. The second layer 4 is wound from a supply roller 6 and passed low and by a guide roller string 8. During the passage through the series of guide rollers 8, the second layer 4 is subjected to coating with melt-mix adhesive hot that is fed from a slot coater 10, wherein the slot is divided into open and closed areas with a series of spacers, the hot melt blend adhesive being separated therefrom into discrete streams that impact and thereby coat the second layer 4 with a spaced pattern, e.g., at least two parallel lines of adhesive. Details of the slot coater, the split slot, the hot melt blend adhesive and the coating pattern are known in the art and are not disclosed in FIG. It should be noted that the adhesive pattern, here the two parallel lines, on the second layer 4 can be of any angle, from 0 to 90 degrees to the machine direction; and that the spaced pattern may be of different designs, not necessarily parallel lines, as discussed above in the "Detailed Description of The Invention" section. The second layer 4 is carried and supported by a face 12 which is rotated by belt support rollers L4, 16. The second layer 4 is furthermore carried in a holder L8 between the belt 12 on the belt support roller 16, and a driving roller 20; wherein, in the fastener 18, the second layer 4 is laminated to the first elongated, concomitantly tapered elongated first layer 2, which is carried in the fastener 18 in the upper part of, and coincidentally with, the second layer k. The first layer 2 is wound from a supply roll 3 and carried in a holder 5 between an impeller roll 7 and a pressure roller 9, with the pressure roller 7 being rotated at a speed lower than that of the drive roller. 20. The first taper and concomitantly tapered first layer 2 is carried around the drive roller 20 and through the fastener 18 between the drive roller 20 and the second incoming layer 4 where it is laminated at second cpk as described above.

Alternatively, as in the apparatus 22A in FIG. IB, the face 12 can be removed, with large layers, the first 2 and the second 4, carried directly through the holder 1.8 between the drive roller 20 and the roller. of pressure 24, with the driving roller rotating at a faster speed than the supply roller 3; it thereby causes the first layer 2 to be subjected to tension and thereby stretch as it passes through the fastener 18 to be laminated in the second layer 4. Since in the apparatus 22, and apparatus 22R, the impeller roller 20 is rotating further quickly that the driving roller 7, and the supply roller 3, respectively, the first layer 2 is subjected to tension and thereby stretched in the machine direction and concomitantly narrows in the transverse direction of the machine. In both figures 1A and 2A, after joining the first concomitantly taut and tapered layer 2 to the second layer 4, it is allowed to relax both the tension and the concomitant narrowing of the first layer 2, thereby allowing the layered material to leave the fastener 18 to form a three-dimensional layered composite material 11, wherein both, the first layer 2 and the second layer 4 are folded, the folds of one layer being parallel to the folds of the other layer. The mixed material 11 is wound onto a receiving roller 13 for later use. Figures 2A and 2D are schematic views of another apparatus 30 and alternatives to the apparatus 30, and an alternative apparatus 30A to the apparatus 30, respectively, to form the mixed layer material of this invention. Figures 2B and 2C are elongated plan views of alternative configurations of the components in the joining stage shown in Figure 2A. Figures 2E and 2F are elongated plan views of alternative analogous configurations of the components of the joining stage shown in Figure 2D. The ananological elements or similar to those of FIGS. 1A and IB are given the same designation numbers in FIGS. 2fl to 2F. Referring now to Figure 2A, the method requires at least a first layer 2 of a flexible, substantially reversible sub-material, such as a cloth, film or foam, and a second layer 4 of a flexible material such as a cloth. , film or foam. The two layers can be made of different materials or of the same material. The second layer 4 is wound from a supply roller 6 and passes through and through a series of rollers. The guide 8. The second layer? it is carried on and is supported by a belt 12 which is rotated by belt support rollers 14, 16. The second layer 4 is carried in a fastener-18, between the flange 12 on the support roller of fa a 16, and a drive / heat seal roller 17; wherein in the fastener 18, the second layer 4 is heat laminated in a pattern spaced in a stretched, elongated and concomitantly elongated first layer in an orthogonal shape 2 which is brought to the fastener 18 at the top of, and cephal The second layer 4. An example of an impeller / teel roller 17 is shown in FIG. 2B in plan in amplified detail, in which the driver / dryer roller 17 is shown to contain, for example, at least two spaced raised heated wrinkles 19, the wrinkles 19 being spaced by spacers 21 that are at a lower level than the wrinkles 19, thereby forming grooves 23 between the wrinkles 19. The girdle support roller 16 may be uniformly smoothed or may have wrinkles that are with or interdigital to the wrinkles 19 on the pressure roller / heat sealer 17. The first layer 2 is wound from a supply roll 3 and carried in a holder 5 ent. a first drive roller 7 and a pressure roller 9, with the drive roller 7 being rotated at a lower speed than the drive roller / heat-sealing roller 17. Since the roller pusher / ternosel lador 17 is faster than A driving roller 7, the first layer 2 is subjected to tension and thereby stretches in the direction of the machine and tapers concomitantly in the transverse direction of the machine. The first tapered and concomitantly tapered layer 2 is carried around a drive roller / heat seal 17 and through the fastener 18 between the drive roller / terrnoseeller 17 and the second incoming layer 4 where it is laminated to the second layer as described above. Alternately, continuing the reference with FIG. 2B, the drive roller / terrnoseeller 17 may be unheated, the belt support roller 16 being heated, thereby having the heat coming from the belt support roller 15, at the strip 1.2 and second layer 4 to seal hot and thereby laminate the two layers 2, 4 together. Alternatively still, as in FIG. 2C, the belt support roller 15 can be heated and contain, for example, at least two heated heated wrinkles 19 spaced apart, the wrinkles 19 being spaced by spacer 21 which are at a low level that the wrinkles 19, thereby forming slots 23 between the wrinkles 19. In such a case, the driver roller 17 may not be heated and may be smoothed uniformly or have wrinkles that are or are interdigital with the wrinkles 19 on the support roller 1.6. It should be noted that both the belt support roller 16 and the drive roller 17 can optionally be heated. Alternatively, as in the JOA section in Figure 2D, Strip 1.2 can be removed, with both layers, the first 2 and the second 4, carried directly through the bracket-18 between the drive roller 20 and the pressure roller. 24, with the driving roller 20 rotating at a faster speed than the supply roller 3; this causes the first layer 2 to be subjected to tension and thereby stretch in the machine direction and narrow concomitantly in the transverse direction of the machine as it passes through the stator. 18 to be laminated to a second layer 4. Referring to FIG. 2E, the drive roller is heated and contains, for example, at least two spaced-apart raised heated wrinkles 19, the wrinkles 19 being spaced by spacers 21 which are at one level lower wrinkles 19, thereby forming slots 23 between the wrinkles 19. The pressure roller 24 can be smoothed uniformly or can have wrinkles that either meet or be interdigital with the wrinkles 19 on the drive roller 20. Alternatively, with reference to FIG. 2F, the drive roller 17 can be without heating, the pressure roller 24 being heated, and containing, for example, at least two spaced-high heated wrinkles 19, the wrinkles being spaced 19 by spacers 21 which are at a lower level than the wrinkles 19, thereby forming grooves 23 between the wrinkles 19. In such a case, the drive roller 17 may not heat up and may be ali It should be noted that both the pressure roller 24 and the drive roller 17 can optionally be made uniformly or have wrinkles that either meet, or are interdigically with, the wrinkles 19 on the pressure roller. heated. After heat sealing the first layer concomitantly taut and tapered to the second layer, it is allowed to relax both the tension and the concomitant narrowing of the first layer, thereby allowing the layered material to leave the fastener 18 to form a material mixed in three-dimensional layers 11, wherein both the first layer 2 and the second layer 4 are folded, the folds of one layer being aparaielos to the folds of the other layer. The mixed material 11 is wound onto a receiving roller 13 for later use. Figure 3 is a plan view, before elongation, and concomitant narrowing orthogonal to the direction of elongation, of an expandable flexible material 40 used to form the first layer of the mixed layer material of this invention. The material 40 is described in Figure 3 having a dimension in the direction of the machine 32 and a dimension in the transverse direction of the machine 33, the respective directions in which the first layer will be subjected to tension and thereby elongate and concornitantemenfe estr-echada, in the process of elaboration of the mixed layer body of this invention. Figure 4 is a plan view of a stretchable material 45, after the stretchable material shown in Figure 3, has been elongated and concomitantly narrowed in a manner orthogonal to the direction of elongation, intermediate to form the first layer of the mixed material in layers of this invention. In figure 4 the material 45 is described which now has a dimension in the machine direction 34 and a dimension in the transverse direction of the machine 35, the respective directions in which the first layer has been subjected to tension and with This is elongated, where dimensions 34 and 35 are respectively larger and smaller than dimensions 32 and 35 shown in Figure 3. Figure 5 shows a plan view of a flexible material 50 used to form the additional layer before joining the first layer to form the mixed layer material of this invention. In Figure 5 it is described that the material 50 has a dimension in the direction of the machine 36 and a dimension in the transverse direction of the machine 37, the respective directions being in which the additional layer will be aligned with the first layer. in the method of manufacturing the layered mixed body of this invention. Figure 6 is a perspective view of a pleated mixed material 60 of this invention comprising the stretchable material, shown in Figure 4, now shown as the first folded layer composite material layer 42 of this invention, after the first layer 42 has been elongated in the direction of the machine 41, and conjointly narrowed orthogonally to the direction of elongation, i.e., in the transverse direction of the machine 55, and attached to at least one layer Additional 44 through spaced lines of adhesive 45, wherein the adhesive spacing lines are essentially parallel to the direction of the machine 41; and the tension and contant narrowing are relaxed to form the same material in layers 60 of this invention, wherein both layers 42, 44 are folded, the pLeggs of one layer being appended to the pLegs of the other layer.

The first component layer 42 comprises joined regions 46 and unattached regions 47, which respectively have linear cross section dimensions 48, 49 and a machine direction dimension 52. By sequentially comparing the dimensions shown in Figure 6 with the analogous dimensions shown in Figure 3, the sum of linear cross section dimensions 48, 49 are essentially at least approximately equal to the dimension of the three-way direction of the machine 32 shown in FIG. 3; and the dimension in the direction of the machine 52 is essentially at least approximately equal to the address dimension of the machine 33, also shown in figure 3. The additional layer 44 comprises joined regions 55 and unattached regions 56 , having respectively linear cross section dimensions 57, 58 and a dimension in the transverse direction of the machine 59. Sequentially comparing the dimensions shown in figure 6 with the analogous dimensions shown in figure 3, the sum of section dimensions linear cross section 57 and 58 are essentially at least approximately equal to the machine direction dimension 37 shown in figure 5 and the cross sectional dimension of the machine 59 is essentially no more than approximately equal to the dimension of the transverse direction of the machine 36 shown in figure 5.

Figure 7 is a perspective view of another pleated folded layer material 70 of this invention. The raw material 70 comprises a first component layer 71 which has been elongated in the direction of the machine 72 and concomitantly narrowed in a manner orthogonal to the elongation aperture, i.e. in the transverse direction of the machine 73 and at least one unit to an additional layer 74 by spaced lines of adhesive 75, wherein the spaced lines of adhesive are essentially parallel to the transverse direction of the machine 73; and the tension and concomitant narrowing relax to form the laminated material 70 of this invention, wherein both layers 71, 74 are folded, the folds of one layer being matched to the folds of the other layer. The first component layer 71 comprises joined regions 77 and unattached regions 78, whose regions define together the folds 79 of the first component layer 71. At least one additional layer 74 comprises joined regions 80 and unbound regions 81, whose regions define together the folds 82 of at least one additional component layer 74. Analogous comments can be made about the relationship of the bound and unattached regions of the folded regions of this laminated body with respect to the dimensions of both, the first layer initial undisturbed and the additional layer. Figure 8 is a partial cross-sectional perspective view of another folded mixed material 90 of this invention. The mixed material 90 comprises a first component layer 84 that has been elongated in the direction of the machine 85 and concatenally narrowed orthogonally to the direction of elongation, ie, in the transverse direction of the machine 86 and joined at least to an additional layer 88 by spaced lines of adhesive 89, the adhesive lines being predominantly shown in shadows, wherein the spaced lines of adhesive are essentially non-parallel both to the direction of the machine 85 and to the transverse direction of the machine 36 , but they are at some angle not parallel to any direction, for example, 45 degrees to the address of the machine 85; and the tension and concomitant narrowing relax to form the mixed material in layers 90 of this invention, wherein both layers 84, 88 are folded, the folds of a layer being in the form of gathered shirlers rather than parallel, the pleats of one layer being aparalelos to the folds of the other layer. The first component layer 84 comprises joined regions 91 and unattached regions 92, whose regions define together the folds 93 of the first component layer 84. At least one additional layer 88 comprises joined regions 94 and unattached regions 95, regions 94, 95, whose regions together define the folds 96 of at least one layer additional component 38. Analogous comments can be made about the relationship of the bound and unbound regions of the folded regions of this mixed body in layers with respect to the dimensions of both, the first undisturbed initial layer and the added layer L. Figure 9 shows a perspective view of an absorbent product of this invention, here, a sanitary towel 120 is covered by a fluid permeable perforated upper layer 100, a fluid impermeable lower layer 102 and an absorbent core (not shown) between them, wherein at least the top layer 100 is made of the folded pleated material of this invention; the upper layer 100, here exhibiting joined areas 99 and unattached 104 (the additional layer is not shown). The absorbent core 104 is comprised of an absorbent, for example wool pulp, and has absorbent rnas, being thereby thicker in approximately the central portion 101, ie, approximately the central third, then becoming thinner, tapering toward the transverse ends. 103, 105 of the towel 120. The towel 120 is distinguished because it has the upper layer 100 sealed along its entire periphery 106 towards the lower layer 102, wherein the lower layer 102 can be comprised of a non-perforated material comprised of the mixed layer material of this invention. The towel 120 is further distinguished by having a pair of curved canals in a deep relief concave shape 107, 108, towards and adjacent to each of two side portions 109, 110, respectively, along and to the outside of the portion. central 101 of the towel 120, the deeply embossed channels 107, 108, being a highly densified region containing the upper layer 100 and a significant depth of the absorbent that compresses the absorbent core 104. The thickness of the absorbent core 104 in portion central 101 between the pair of channels 107, 108 is at least equal to or greater than the thickness of the central portion 101 between the pair of channels 107, 108 and side portions 109, 110. The towel 120 also comprises a post-cyanide adhesive (not shown) on the garment side of the bottom layer 102, to join the towel 120 to an intimate garment, the posi- tioning adhesive is protected until used with a release paper (not shown). The absorbent core 104 may optionally contain as distinct caps, gradients, or as homogeneous dispersions, any or all of the absorbent such as its sphagnum moss and superabsorbent. Figure 10 shows a perspective view of an absorbent product of this invention, here, a sanitary towel 130 is covered by a fluid permeable top layer 112, a fluid impermeable bottom layer 113 and an absorbent core (not shown) therebetween , wherein the upper layer 312 and / or the lower layer 114 can be made from the folded pleated body of this invention; the upper layer 112, here exhibiting joined areas 116 and unattached areas 117 (the additional layer is not shown). The towel 130 also comprises longitudinally extending right and left bands LL8, 119, each of the strips being joined along their respective base portions 121, 122 to the right and left side portions 123, 124 of the towel. , respectively, so that the distal ends 125, 126 of the bands 118, 119 extend extensively from the right and left side portions 123, 124 of the towel 130. The upper layer 112 and the lower layer 114 are joined together in a flange seal 122 and base portions 121, 122 of the bands 118, 119. The bands 118, 119 may be joined longitudinally along their respective base portions 12.1, 122 to the towel 130: anywhere, between the respective side portions 123, 124 and the longitudinal center line 125; along and above or below top layer 112, but not including longitudinal center line 125; along and above or below The lower layer 114, including the center line 125; in such a way as to ensure that the strips 1.18, 119 extend at least outwardly from the side portions 123, 124. The strips L18, 119 in this example may also be covered with a non-woven material or, as shown herein. , with the mixed material in folded layer of this invention; here, the folded mixed layer material exhibits joined areas 116 and not joined 117 (the additional layer is not shown). Additionally, bands 118, 119 can be made from, or contain- in or on the bands other materials such as films., non-woven materials and foam, non-woven materials or foam being preferably of a high quality material. The bands 118, 119 may also contain additional elastic materials in or on the bands. The absorbent core 116 in Figure 10 has an almost rectangular profile and is thicker in the middle part 127 than the side portions 123, 124, or the transverse ends 128, 129. The absorbent core 116 may have other profile shapes such as Hourglass, dog bone or oval. The absorbent core 116, coming from the side of the absorbent coating of the upper layer 112, may further comprise a transfer layer of a low density nonwoven material, an absorbent auxiliary layer containing sphagnum moss and a main absorbent layer, such as of air laying pulp. The towel 130 also comprises positioning adhesive (not shown), on the garment side of the lower layer 114, for attaching the towel 130 to an undergarment, the positioning adhesive protected until it is used with a release paper (no shown). The absorbent core may optionally contain as distinct layers, gradients, or as homogeneous dispersions, any or all of tisu, sphagnum moss and superabsorbent. Modalities of banded towels such as those described herein are described in commonly assigned patent applications, for Salerno and other, entitled "Absorbent Article Having Compliant Cuffs" and "Stabilized Absorbent Article", which are incorporated herein by reference. its entirety Figure 11 shows a perspective view of a 59 absorbent product of this invention, a sanitary pad 150 covered by a fluid permeable top layer 131, an inner fluid impermeable layer 132 and an absorbent core (not shown) therebetween. The towel 150 also comprises longitudinally extending right and left wings or appendages, 133, 134, each of the wings or appendages 133, 134 are joined along their respective base portions 135, 136 to the right side portions thereof. left 137, 138, of the towel 150, respectively, so that the distal ends 139, 140 of the wings or appendages 133, 134 extend extensively from the right and left side portions 137, 138 of the sanitary napkin 150. upper layer 131 and lower layer 132 are joined together in a flange seal 141 and to the base portions of the wings or appendages, 133, 134. The wings or apprentices 133, 134, in this example are also covered with the material mixed in layers of this invention. Optionally, the wings or apices may be "attached to the sanitary napkin: longitudinally along and above or below the shroud between, and including the center of the towel and adjacent to the lateral portions, longitudinally anywhere. along the lateral portions of the towel, and longitudinally along and above or below the barrier film backing sheet, wings or appendages 133, 134 may be joined longitudinally, alternately along their respective lengths. base portions 135, 136 anywhere between the respective side portions 137, 138 and adjacent to, but not including the cent line to the longitudinal line 142; such wings or appendages 133, 134 extend at least outwardly from side portions 137, 138 The absorbent core 133 in Figure 11 has an hourglass profile and is thicker in the middle region 143 than in the side portions 137, 138 or the transverse ends 144, 145. The core Absorbent 133 may further comprise, from the side of the absorbent coating of the upper layer 131, a transfer layer made of a low density nonwoven material, an absorbent auxiliary layer containing sphagnum moss and a main absorbent layer, such as pulp of laying in the air. The towel 150 also comprises positioning adhesive (not shown), on the garment side of the lower layer-132, for a r- the towel 150 and the wings or appendages 133, 134 to the intimate garment, the positioning adhesive it is protected until worn with a release paper (not shown). The absorbent core 133 may optionally contain as distinct layers, gradients, or as homogeneous dispersions, any or all of the absorbents of tissue, spherical moss and superabsorbent. Modes of towels with bands such as those described herein are described in US Patent Application Ser. No. 198,809 entitled "Body Conforrn g Absorbent Article" for McCoy et al. And commonly assigned, incorporated herein by reference in its entirety as a reference. .

Figure 12 shows a partial cross section of a perspective view of an absorbent product of this invention, here, a sanitary towel 160 covered by a fluid permeable perforated top layer 151, a fluid impermeable bottom layer 152 and an absorbent core 153 between them, the absorbent core 153 further comprises an insert 154 made of the pleated blended material of this invention. The upper layer 151 and the lower layer 152 are joined together in a flange seal 164. The towel 160 also comprises positioning adhesive 165, on the garment side of the lower layer 152, for joining the towel 150, the adhesive of p > os? c? on? uento 165 is protected until used with a release paper 166. The insert 154 can be positioned anywhere within the absorbent core 153 between the top layer 151 and the bottom layer 152, and can be substituted for any or all - absorbent core 153. In this wayWhen the insert 154 is comprised of at least one perforated component layer, it has been found useful as an intermediate fluid transfer layer for conducting the fluids both laterally and verifiably and for storage or containment structures for ingredients such as deodorants, fragrances, medications and superabsorbents. Here, the insert 154 is positioned between the top layer 151 and the absorbent core 153, and there is therefore a perforated component layer. The insert 154 is comprised of a first layer 156 and at least one layer. additional 159 joined together by spaced joining means 161; wherein the first layer is comprised of joined areas 157 and unattached areas 158, and at least one additional layer 159 is comprised of bonded areas 162 and non-umdae areas 163. I am aware that the insert 154 here can act as a transfer layer of fluid, the absorbent core 153 may comprise a component absorbent auxiliary layer such as sphagnum moss and a main absorbent layer such as airlaying pulp; and may optionally contain different layers, gradients, or co-or homogeneous dispersions, any or all of the absorbers such as tissue, moss, and superabsorbent. When the mixed layer material comprising the insert is completely comprised of perforated or non-perforated component layers, or has both perforated and non-perforated component layers, it has also been found useful in structures resistant to deformation and breakage.

EXAMPLES In addition to the foregoing descriptions and as illustrated further with the figures, the folded blended body of the invention is also illustrated in the following table, "Manufacture of Laminated Mixed Material", with examples of manufacturing operations used to make the mixed materials in folded layers, without intending to be limited by such examples. The table describes manufacturing operations where the layer I was subjected to tension and concomitantly tapered and, while in a tight and narrowed state, was adhered to a layer 2 having lines of hot melt adhesive spaced parallel to each other in the address of the machine. The examples of layer 1 described in the table include: a perforated upper 3D profile film, made of polyethylene, as described in previously cited Canadian Patent Application 2,130,176 and in US Patent Applications 08 / 522,600 and 08 / 522,722 and 08 / 523,112; a low perforated 3D profile film made by applying vacuum to a polyethylene film ap > Oyada in a perforated cylindrical drum; a flat perforated film made from a p > coextruded particle comprised of polyethylene and copolymer of polyethylene and polyvinyl acetate, as described in US Patents 4,806,411 and 4,859,519, previously cited; and different non-perforated polyethylene films of different weights «Je base. The application of tension and concomitant narrowing of the layer 1 was effected by the difference in speeds between the cylinders that transfer the layer 1, where layer 1 is pulled and thereby stretched with the cylinder driven by the rotating impeller 2 at a higher speed than the cylinder driven by the impeller 1; and wherein the cylinder driven by the impeller 2 brings the layer 1 towards the fastener where it is laminated in the layer 2 and subsequently allowed to relax from its taut and constricted state. In the group of columns, marked as "Layer 1 Width", the initial width of the first layer is compared with the width of the layer 1 taut and thus narrowed and then with the width of the relaxed layer 1, the which is the same as its width folded in the body laminated laminated. It should be noted that although the folded width is smaller than the initial width, the actual width of material contained in the folded layer 1 is essentially the same as the initial non-folded width, ie, the recovery of layer 1 is essentially 100%. %. In the group of columns, marked as "Layer length 1", the initial length of layer 1 is compared with the length of layer 1 taut and stretched, and then with the relaxed length of layer 1, which It is the same length as its folded length in the mixed body in layers folded. It should be noted: that the folded length of layer 1 is very similar to its initial length, since essentially all the folds of layer 1, where the adhesive lines are parallel to the direction of applied tension, occur in the width , that is, in the transverse direction of the machine; and that the recovery of the L layer in the length is essentially 1.00%. Layer 2 in these manufacturing operations included: a single ply of nonwoven polypropylene joined by spinning (U) of different weights of base or tissue (Ties) of different base weights; double folds of nonwoven and tissue; and triple folds of a non-woven folds and two folds of f. The box also gives, for layer 2, the spaces between the lines of hot melt adhesive, as well as the number of folds / crn contained in layer 1 in the mixed body, the latter being determined predominantly by the degree of Folding imposed in layer 2 by layer 1 stretched and relaxed and the number of folds in layer 1 being determined to a greater degree by the spacing between the adhesive lines in layer 2. Certain embodiments have been used in describing the present invention for purposes of illustration; however, those skilled in the art will easily devise other modalities or modifications within the spirit and scope of the invention, upon reading this description. Therefore, the invention is not limited to the specific embodiments described and illustrated herein, but only in accordance with the appended claims.

MANUFACTURE OF MIXED MATERIAL IN FOLDED LAYERS Layer 1 Layer spacing 2 ve_jcci < __d velxxacfed ar_ ± D of layer 1 lrgitud of the tight folds of lHpinada impelling impeller (i pm) layer 1 (nm) layer 2 athesive 1 cpyirtin 1 cnytón home i tiens. relax start tais. relax (per cm) film 12.7 Me 24.0 gsm 351.2 11.5 fim 190.0 145.0 166.0 30.4 42.3 33.2 2.2 of profile 12.7 Me 24.0 gsm 351.2 11.5 954 190.0 185.0 182.0 30.4 34.5 30.3 1.7 3D low perforated 9.7 Me 24.0 gan 351.2 11.5 624 191.0 145.0 170.0 30.4 42.6 13.1 9.7 Me 24.0 gan 351.2 11.5 451 191.0 145.0 170.0 30.4 34.7 11.9 7.9 Me 20.0 gan 351.2 11.5 577 177.0 153.0 170.0 30.4 34.0 11.6 IU 7. 9 Me 20.0 gan 351.2 11.5 443 178.0 143.0 155.0 30.4 34.0 11.9 (OR 7. 9 Me 20.0 gan 351.2 11.5 424 177.0 153.0 170.0 30.4 34.0 11.6 7.9 Me 24.0 gsm 351.2 11.5 583 178.0 145.0 172.0 30.4 41.0 11.6 7.9 Me 24.0 gsm 351.2 11.5 458 178.0 160.0 179.0 30.4 33.0 11.8 7.9 Me 24.0 gan 351.2 11.5 632 178.0 123.0 143.0 30.4 42.6 12.2 7.9 Me 24.0 gan 351.2 11.5 458 178.0 132.0 158.0 30.4 34.5 L1.9 7.9 Me 24.0 gan / tiss 20.0 gan 351.2 11.5 617 178.0 123.0 160.0 30.4 40.7 11.9 7.9 Me 20.0 gan / n 351.2 11.5 445 178.0 125.0 160.0 30.4 34.0 11.9 tiss 20.0 gan 351.2 11.5 595 178.0 128.0 153.0 30.4 39.4 12.2 1.5 WLde Tiss MANUFACTURE OF MIXED MATERIAL IN FOLDED LAYERS Layer 1 Spacing layer 2 speed speed width of layer 1 length of folds tension of impeller foil (mm) layer 1 layer 2 adhesive gives 1 cm / min 2 cm / min start tens. laughed j to gone (nBn) (for cm) home tens. relaxed 7.9 NW 20.0 gan / líss 20.0 (jar / 350 457 178.0 150.0 165.0 30.4 33.0 11.8 1.5 wicte Tiss eliculo 7.9 Me 24.0 gan 11.5 575 5.182 145.0 158.0 30.4 43.4 12.6 e profile 7.9 Me 24.0 gan 11.5 457 5,182 156.0 166.0 30.4 35.2 11.8 D low erforated particle 7.9 Mi 20.0 g_m 11.5 594 5,242 137.0 138.0 30.4 35.5 13.5 Lara 7.9 Me 20.0 gan 11.5 457 5,292 145.0 155.0 30.4 32.7 11.9 erf irada 7.9 Me 24.0 gan 11.5 594 5,292 134.0 141.0 30.4 36.2 13.0 o 7. 9 Me 24.0 gan 11.4 457 5,182 147.0 158.0 30.4 33.5 11.8 7.9 Tiss 20.0 gan 350 594 172.0 137.0 137.0 30.4 35.4 13.4 7.9 TLss 20.0 gan 350 594 172.0 147.0 155.0 30.4 32.7 11.8 grid 7.9 Hss 20.0 gan 350 582 168.0 145.0 154.0 30.4 40.0 12.2 o perforated .CQ2 an FE unbellinated specimen 7.9 Tiss 20.0 gan 35.0 457 168.0 161.0 151.0 30.4 32.8 12.4 .002 cm PE unreamed 7.9 Tiss 20.0 gan 350 585 170.0 145.0 154.0 30.4 41.1 12.4 .002 cm FE MANUFACTURING OF MIXED MATERIAL IN LAYERS FOLDED 1 layer 1 layer 2 velocity velocity a r »layer 1 layer length 1 pleats lapped adhesive strip ippilsor 1 irrpilsar 2 (pm) (prn) layer 2 nm tension start. relaxed home tension. relaxed (per an) felícula rr »7.9 tiss 20.0 gsm 350 457 170.0 165.0 164.0 30.4 33.4 12.0 erf oracia .0024 cm PE telícula GD 7.9 tiss 20.0 gan 350 588 152.0 133.0 140.0 30.4 41.2 12.5 erforada .0024 cm PE felícula 7.9 tiss 20.0 gan 350 46.9 152.0 145.0 148.0 30.4 33.5 12.0 or perforated .0025 an PE no. 7.9 Me 24.0 g = m 350 594 153.0 133.0 139.0 30.4 41.6 12.6 ef orada .0025 an E nicle no 7.9 Me 24.0 gan 347 457 152.0 145.0 147.0 30.4 34.0 12.0 erforated at .0024 cm FAITH

Claims (52)

NOVELTY OF LR INVENTION CLAIMS

1. - A folded mixed layer material comprising, a first layer of a flexible, reversible and extensible material, attached to at least one additional layer of a non-tense flexible material at spaced apart positions along a substantial portion of the first cap; where both, the first layer and the additional layer mentioned are folded, with the folds of one layer matching them to the folds of the other layer.

2. The folded mixed material in layers, according to claim 1, characterized in that the first layer is a material selected from the group consisting of cloth, film and foam.

3. The material folded in layers, in accordance with claim 2, further characterized in that the film is selected from the group consisting of non-perforated films, perforated films, embossed films and non-embossed films.

4. The mixed material in folded layers, according to claim 2, further characterized in that the fabric, film or foam is inelastic.

5.- The ma. mixed layer in folded layers, in accordance with claim 4, further characterized in that the fabric or film is made of materials selected from the group consisting of polyethylene, polypropylene, non-cross linked vinyl acetate ethylene-vinyl acetate copolymers, polyarylene + ales such as nylon 6 and nylon 6,6, polyesters, polyvinylidene chloride, polyvinyl chloride, polyester polyurethanes, polyether polyurethanes, and blends, coextruded laminates, laminates of such materials, and combinations thereof.

6. The material folded in layers, according to claim 2, further characterized in that the fabric is selected from the group consisting of woven fabrics, woven, tissue and non-woven fabrics.

7. The folded laminate material in accordance with claim 2, further characterized in that the fabric is made of fibers selected from the group consisting of polyethylene, polypropylene, polyester, polyester polyurethane, polyether polyurethane, two-component fibers + is + ales such as polyethylene and polypropylene, polyethylene and polyester, polypropylene and polyester and polyesters of low and high melting point, and combinations of the same.

8. The folded mixed material in layers, according to claim 2, further characterized in that the foam is made of materials selected from the group consisting of < 1e polyester polyurethanes, polyether polyurethane and full poly-t.

9. The mixed material in folded layers, according to claim 2, further characterized in that the fabric, film or foam is elastic.

10. The mixed material in folded layers, according to claim 9, further characterized in that the fabric, film or foam are made of materials selected from the group consisting of natural or synthetic rubbers, polyester polyurethanes and elastomeric polyethers, elastomeric polyamides and elastomeric polyesters, styrene-butadiene-styrene block copolymers, styrene-ethylene-butylene-styrene block copolymers, styrene-isoprene-styrene block copolymers, non-crosslinked ethylene-vinyl acetate copolymers, low density polyethylene , and mixtures, coextruded laminates, laminates in layers of such materials, and combinations of the same.

11. The material folded in layers, according to claim 1, further characterized in that the additional layer mentioned is selected from the group consisting of cloth, film and foam.

12. The material mix + or folded layers, according to claim 11, further characterized in that the fabric is selected from the group consisting of interwoven fabrics, woven fabrics, tis? S and non-woven.

13. The folded mixed material in layers, according to claim 11, further characterized in that the film is selected from the group consisting of non-perforated films, perforated films, enhanced films and un-enhanced films.

14.- The blended folded epana + epal in accordance with claim 1, further characterized in that the aforementioned additional layer is elastic.

15. The mixed material in folded layers, according to claim 1, further characterized in that the additional layer mentioned is elongable and melletic.

16. The mixed material in folded layers, according to claim 1, further characterized in that the aforementioned additional layer is non-stretchable and inelastic.

17. The folded mixed layer material in accordance with claim 11, further characterized in that the fabric or film is made of materials selected from the group consisting of polyethylene. polypropylene, non-crosslinked ethylene-vinyl acetate copolymers, polyamides such as nylon 6 and nylon 6,6, polyesters, polyvinylidene chloride, polyvinyl chloride, polyether polyurethanes, polyether polyurethanes, natural and synthetic rubber, elastomeric polyester and polyether polyurethanes, elastomeric polyarynides, elastomer polyesters, styrene-butadiene-styrene block copolymers, styrene-ethylene-butylene-styrene block copolymers, styrene-isoprene-styrene block copolymers, density polyethylene ultra low, and mixtures, coextruded laminates, laminates in layers of such materials, and combinations thereof.

18. The mixed material in folded layers, according to claim 11, further characterized in that the fabric is made of fibers selected from the group consisting of wool pulp, cotton, rayon, wool, linen, silk, ramie, jute, polyethylene, polypropylene, polyester, polyester polyurethane, polyether polyurethane; and bicomponent fibers such as polyethylene and polypropylene, polyethylene and polyester, polypropylene and polyester and polyesters of low and high melting point, and combinations of the same.

19. The mixed material in folded layers, according to claim 1, further characterized in that the spaced positions are parallel lines, the lines being selected from the group of straight, curved, continuous, discontinuous and combinations thereof.

20. A method of forming a mixed material in folded layers, comprising, applying tension to a first layer of a flexible stretchable material in an amount to be reversibly elongated in the direction of the applied tension and to be reversibly constricted in a coplanar direction orthogonal to the direction of the applied voltage; joining the first layer, while concomitantly taut in the direction of the applied tension and orthogonally tapered to the direction of the applied tension, by a joining means at spaced apart positions along a substantial portion of the first layer, so an additional layer comprised of a non-tense flexible material, to form a mixed material in layers; and then releasing both the tension and the narrowing of the first layer, to form a rnix + or ridged layer material, where both the first layer and the additional layer mentioned are folded, with the folds of one layer matching the folds of the o-tra layer.

21. The mixed material in folded layers, according to claim 20, further characterized in that the first layer is a material selected from the group consisting of cloth, film and foam.

22. The folded layer mix-to material according to claim 21, further characterized in that the film is selected from the group consisting of non-perforated films, perforated films, embossed films and unstretched films.

23.- The mixed rna + erial in folded layers, according to claim 21, further characterized by the melting cloth, film or foam.

24. The mixed material in folded layers, according to claim 21, further characterized in that the fabric or film are made of materials selected from the group consisting of polyethylene, polypropylene, copolymers of ethylene-vinyl acetate not crosslinked, polyamides such as nylon 6 and nylon 6,6, polyesters, polyvinylidene chloride, polyvinyl chloride, polyester polyurethanes, polyether polyurethanes, and blends, coextruded laminates, laminates of such materials, and combinations thereof.

25. The mixed material in folded layers, according to claim 23, further characterized in that the inelastic fabric, film or foam are subjected to tension in an amount sufficient to stretch the fabric, film or foam to at least 1% more big than its original length.

26. The mixed material in folded layers, according to claim 23, further characterized in that the inelastic fabric, film or foam are subjected to tension in an amount sufficient to stretch the fabric, film or foam in an amount of about 1% at approximately 60% larger than its original length.

27.- The folded mixed layered maternity, according to claim 23, further characterized in that the inelastic fabric, film or foam is subjected to tension in an amount sufficient to stretch the fabric, film or foam from about 5 to about 35% larger than its original length.

28.- The folded mixed material in layers, according to claim 21, further characterized in that the fabric is selected from the group consisting of rewoven fabrics, woven fabrics, tissues and nonwovens.

29.- The folded mixed material in layers, according to claim 21, further characterized in that the fabric is made of fibers selected from the group consisting of polyethylene, polypropylene, polyester, polyester polyurethane, polyether polyurethane, two-component fibers and filaments, bicomponent fibers such as polyethylene and polypropylene, polyethylene and polyester, polypropylene and polyester and low and high melting point polyesters, and combinations thereof.

30.- The folded mixed material in layers, according to claim 21, further characterized in that the foam is made of materials selected from the group consisting of polyester polyurethanes, polyether polyurethanes and polyethylene.

31.- The folded mixed material in layers, according to claim 21, further characterized in that the fabric, film or foam is elastic.

32.- The mixed material in folded layer, according to claim 31, further characterized in that the fabric, film or foam are made of materials selected from the group consisting of natural or synthetic rubbers, polyester polyurethanes and elastomeric polyethers, elastomeric polyanides and elastomepcoe polyesters, block copolymers of styrene-butadiene-styrene block, styrene-ethylene-butylene-styrene block copolymers, styrene-isoprene-styrene block copolymers, ethylene-acetyl-vinyl copolymer crosslinked, ultra low density polyethylene, and mixtures, coextruded laminates, laminates in layers of such materials, and combinations thereof.

33.- The folded mixed material in layers, according to claim 20, further characterized in that the aforementioned additional layer is selected from the group consisting of cloth, film and foam.

34. The mixed material in folded layers, according to claim 33, further characterized in that the fabric is selected from the group consisting of interwoven fabrics, woven, tissue and non-woven fabrics.

35.- The folded mixed material in layers, according to claim 33, further characterized in that the film is selected from the group consisting of non-perforated films, perforated films, embossed films and non-embossed films.

36.- The rnix + or folded layers material, according to claim 20, further characterized in that said additional layer is elastic.

37.- The folded mixed material in layers, according to claim 20, further characterized in that said additional layer is elongable and melastic.

38.- The folded mixed layer material, according to claim 20, further characterized in that the aforementioned additional layer is non-stretchable and melastic.

39. - The mixed material in folded layers, according to claim 33, further characterized in that the fabric or film are made of materials selected from the group consisting of polyethylene, polypropylene, non-crosslinked ethylene-vmyl acetate copolymers, polyamides such as nylon 6 and nylon 6,6, polyesters, polyvinylidene chloride, polyvinyl chloride, polyurethane + polyester, polyurethane polyurethanes, natural and synthetic rubbers, polyester polyurethanes and polyether elas + omerics, polyarnides elastomencas, elastomep polyesters, copolymers in styrene-b-tadiene-styrene block, en-ylene-butylene-styrene-styrene block copolymers, styrene-isoprene-styrene block copolymers, ultra-low density full poly, and mixtures, coextruded laminates, laminates layers of such materials, and combinations thereof.

40.- The mixed material in folded layers, according to claim 33, further characterized in that the fabric is made of fibers selected from the group consisting of pulp of wool, cotton, rayon, wool, linen, silk, ramie, jute, polyethylene, polypropylene, polyester, polyurethane poleeter, polyether polyether; fibers and filaments of two components, the two-component fibers such as full-poly and polypropylene, polyethylene and polyester + er, polypropylene and polyester and low and high melting point polyesters, and combinations thereof.

41. - The folded double layer material according to claim 20, further characterized in that the first layer is subjected to tension in a single direction. 42.- The folded mixed material in layers, according to claim 20, further characterized in that the first layer is subjected to tension in first and second directions, the second direction being subspecially orthogonal to the first direction, where The amount that is subjected to tension in the second direction is substi- tionally less than the amount that will be constricted, when the tension and constriction are subsequently relaxed. 43.- The folded mixed material in layers, according to claim 20, further characterized in that the joining means are selected from the group consisting of bonding of adhesive, heat sealing, mechanical garlic + and combinations thereof. 44.- The folded mixed material in layers, according to claim 43, further characterized in that the adhesive bonding means is a hot melt blend adhesive. 45.- The folded mixed material in layers, according to claim 20, further characterized in that the spaced positions are parallel lines, the lines being selected from the group of straight, curved, continuous, discontinuous and combinations thereof. 46.- A sanitary napkin having a fluid permeable upper layer, a fluid impermeable lower layer, and an absorbent core therebetween, wherein the upper layer and / or the lower layer are comprised of a mixed material in layers, The material further comprises a first layer of a flexible, reversibly stretchable material, attached to at least one additional layer of a non-tense flexible material at spaced apart positions along a substantial portion of the first layer; wherein both, the first layer and the additional layer mentioned are folded, with the folds of one layer matching them to the folds of the other layer. 47.- A sanitary napkin, having a longitudinal central line, a pair of lateral parts and a pair of transverse ends, the towel comprises a fluid-permeable upper layer, a fluid-impermeable lower layer, and an absorbent core erd re them; the towel has inside the central portion a pair of deeply enhanced channels, the channels include the upper layer and at least part of the absorbent core; each channel is curved concavely towards each pair of lateral parts, respectively; the absorbent core is thicker in the central portion, and tapers to a smaller thickness from the central portion to the transverse ends; and characterized furthermore because the thickness of the central portion between the channels must be at least equal to "1 thickness of the central portion between the channels and the? Side parts; and wherein the upper layer and / or the lower layer is comprised of a folded double layer material; the material further comprises a first layer of flexible, reversibly stretchable material, attached at least to an additional layer of non-tense flexible material at spaced positions along a substantial portion of the first layer; where both, the first layer and the additional layer mentioned are folded, with the folds of one layer matching the folds of the other layer. 48.- A sanitary napkin, having a longitudinal center line, a pair of lateral parts and a pair of transverse ends, the towel comprises a fluid-permeable upper layer, a lower fluid-impermeable layer, and an absorbent core between they; and a couple of bands, having L5 each a base portion and a distant end, each band extends and joins longitudinally, along its respective portion (base Je, to one, or a combination of the upper layer, the lower layer and respective side part) the longitudinally extending joint is anywhere, or between the central longitudinal line, so that the distal ends of the bands extend at least outwardly from the lateral portions of the towel, and where any or all The upper layer, the lower layer and the bands are comprised of a mixed material in layers, folded, the material also comprises a first layer of a flexible, reversibly stretchable material, attached to at least one additional layer of a non-tense flexible material in spaced positions along a substantial portion of the first layer, wherein both, the first layer and the aforementioned additional layer are folded, the folds being of an aparale layer the a The folds of the other layer. 49.- A sanitary napkin, having a longitudinal center line, a pair of lateral parts and a pair of transverse ends, the towel comprises a fluid-permeable upper layer, a lower fluid-impermeable layer, and an absorbent core therebetween; and a pair of wings, each one having a base portion and a far end end, each wing extends and joins longitudinally, along its respective base portion, to one, or a combination of the upper layer, the layer bottom and the respective side part; the union that extends Longitudinally is anywhere, between the lateral part and the longitudinal central line; so that the distal ends of the wings extend at least externally from the side portions of the towel; and wherein any or all of the upper layer, the lower layer and the wings, are comprised of a layered, folded, double material, the material further comprising a first layer of a flexible, reversibly stretchable maternal, attached at the less to an additional layer of a flexible non-tense maternal at positions spaced along a substantial portion of the first layer; wherein both, the first layer and the additional layer mentioned are folded, with the folds of one layer matching them to the folds of the other layer. 50.- A sanitary napkin having a fluid-permeable upper layer, a fluid impermeable lower layer, an absorbent core therebetween, and at least one insert; the insert is located between the upper layer and the lower layer; and wherein any or all of the top layer, the bottom layer and the insert are comprised of a mixed material in folded layers, the material further comprises a first layer of flexible, reversibly stretchable material, attached at least to an additional layer of a non-tense flexible material at spaced positions along a substantial portion of the first layer; wherein both, the first layer and the additional layer mentioned are folded, with the folds of one layer matching them to the folds of the other layer. 51.- The sanitary napkin according to claim 50, further characterized in that it is perforated by at least one of the first layer and the additional layer mentioned, of which the insert is comprised. 52.- The sanitary napkin according to claim 50, further characterized in that at least one of the first layer and the aforementioned additional layer, of which the insect is included, is not perforated. SUMMARY OF THE INVENTION The present invention is directed to a mixed material in layers p Legacy comprised of a fabric, film, foam or combination thereof, having a first layer of flexible, reversibly stretchable material, joined in positions spaced to at least one layer additional to a flexible L, where both layers are folded, the folds of one layer are aparalelos to the folds of the other layer; the mixed maternal can be done, first, reversibly applying tension to the first layer and concomitantly reducing the first layer, in a coplanarly orthogonal direction to which the tension is applied; then, the first layer which is taut and tapered, is discreetly joined, in spaced positions, to at least one additional layer of a non-tense flexible maternal side, comprised of a fabric, film or foam or a combination of the same; When these resulting maternal layers, tense and adhered, are subsequently released from the applied tension, form maternal mixed in layers, three-dimensional, in which both layers are folded and the folds of one layer are aparalelos to the folds of the other cap; The mixed layered bodies of this invention can be used in the manufacture of different products, including, but not limited to, sanitary absorbent products, such as combs, sanitary napkins, incontinence products, as well as bandages, bandages for wounds, surgical bandages, pads and bandages for the treatment of stasis ulcers, surgical drapes, lower pads and the like. Efl P97 / 153