Abstract: A device for laying a thin metal wire in a straight line on the surface of the thermoplastic film of a laminated glass pane. A rotatable mounting is provided for the wire supply reel, a heated pressing roller presses the wire into the thermoplastic film and a guide device guides the wire between the supply reel and the pressing roller. The supply reel is coupled in rotation to an electromagnetic brake having an adjustable braking torque and a wide control range for the braking torque. The electromagnetic brake is preferably a magnetic powder brake.

Abstract: Articles comprising a nonwoven polypropylene fabric bonded directly to a film of a heterophasic polymer composition comprising:A) a polypropylene homopolymer, or a crystalline copolymer of propylene with ethylene and/or another .alpha.-olefinB) an ethylene-propylene copolymer, andC) a copolymer of ethylene with propylene and/or another .alpha.-olefin, and optionally a diene.

Abstract: A moisture-permeable acoustic lamina which is usable as a wall covering has a foraminous woven fabric layer adhered to a fabric backing by a discontinuous thermoplastic polymer layer. The woven fabric preferably has an embossed undulate outer surface to enhance the acoustic properties of the lamina and to impart an aesthetic textural appearance. The individual yarns of the woven fabric are preferably substantially uniformly coated with a polyvinyl chloride plastisol to impart stain and wear-resistance, inhibit the growth of molds, fungi, bacteria and the like, and to enhance the appearance of the exposed face of the lamina. The moisture-permeable lamina structure allows wall covering paste, used to adhere the lamina to a wall, to dry at an acceptable rate, yet does not allow paste to bleed through the foraminous woven fabric layer.

Abstract: A thermoplastic polymer composition primarily comprising polylactic acid or a copolymer of lactic acids and the other hydroxycarboxylic acids than lactic acids, industrial fabrics which can be degraded into nontoxic water and carbon dioxide within a relatively short period under the natural environment, and flexible containers, water shielding sheets and resin coated-cloth ventilation tubes which are prepared from the industrial fabrics.

Abstract: A plurality of optical fibers (13) are first bonded to an upper surface of a flat flexible plastic substrate (12). The optical fibers are covered with a layer (20) of thermoplastic material to form a composite structure comprising the thermoplastic material, the optical fibers and the plastic substrate. The composite structure is then compressed at a first elevated temperature and at a first relatively high pressure which are sufficient to bond or tack the thermoplastic material to the plastic substrate. The temperature of a composite structure is then cool while maintaining the first relatively high pressure. Thereafter, a second elevated temperature is applied to the thermoplastic material while compressing the composite structure at a second pressure.

Abstract: A method for the manufacture in a continuous process of a flat substrate from a fibres-reinforced matrix for a printed circuit, in which use is made of at least two moving layers of reinforcing fibres and the fibres are positioned in at least two crossing directions, whereupon the filaments layers provided with matrix material, optionally together with one or more electrical conducting layers, such as a metal foil, and/or insulating layers on one or on either outer side, are passed through a preferably heated laminating zone, such as a double belt press, characterized in that use is made of filaments-containing layers made up of a plurality of mutually parallel filaments that are not bonded in the form of a fabric and extend substantially linearly.

Abstract: A fiber reinforced composite composed of a scrim/mat. The scrim/mat includes a layer of fiber scrim to which is bonded a layer of fiber mat. This product can be formed into a tubular member such as a fuse tube. The tube is made by pultruding the scrim/mat.

Abstract: A sheet of coated abrasive material including a backing having abrasive on one surface and loops projecting from its other surface by which the sheet of coated abrasive material can be held by hooks on the support surface of a pad. The backing comprises a polymeric bonding layer defining its rear surface. The sheet of coated abrasive material comprises a nonwoven sheet of longitudinally oriented fibers having anchor portions bonded in the polymeric bonding layer at spaced bonding locations, and arcuate portions projecting from the rear surface of the backing between the bonding locations to provide the loops.

Abstract: A bituminous sheet or web coating material (1) is on the one side provided with a heat activatable adhesive layer (3) optionally covered by a plastic film (5), wherein the adhesive layer is provided with a pattern of close grooves (4) with intermediate unbroken ridges, and a process for forming a coating on a support is performed by heating such coating material (1) to decomposition of said plastic film (5) and activation of the adhesive layer (3), the activated adhesive layer (3) being pressed against the support, e.g. a roof.

Abstract: The invention is directed to composite nonwoven fabrics comprising a hydrophobic nonwoven web, a nonwoven web of thermoplastic meltblown microfibers and a hydrophilic nonwoven web comprising staple fibers. The nonwoven web of thermoplastic meltblown fibers is sandwiched between the hydrophobic nonwoven web and the hydrophilic nonwoven web and all of the layers are thermally bonded together via discontinuous thermal bonds distributed substantially throughout the composite nonwoven fabric.

Abstract: A low cost, high web integrity fabric that can be economically produced and tailored to provide a variety of different combinations of characteristics and properties for different end uses. It is a fabric wherein the strength in any direction can be predetermined and also wherein the elasticity in any direction can be varied in a predetermined fashion. It is also a fabric that combines continuous filaments, ranging from elastomeric to non-elastic but elongatable to at least a minimum extent, for strength and elasticity with the predetermined indepth intermingling of fibrous melt blown webs for interlocking of the said continuous filaments in the formation of the integrated, fibrous and continuous filament matrix.

Abstract: A method for continuously producing air filters made from synthetic materials is described, wherein an essentially continuous length of filter material is passed through a series of ultrasonic welding means to form a pocket into which a frame can be inserted. The pocket is then ultrasonically welded closed. Individual filters are then cut from the length of filter material. The process may also be used to create synthetic bag filters.

Abstract: A teartape for packaging materials, and particularly such materials based on polyolefin films, includes a base film coated with a pressure sensitive adhesive composition. The teartape is affixed to the packaging material by the adhesive composition. This avoids the problem of distortion which can occur when affixing conventional teartapes to such packaging materials by means of hot melt wax compositions. The teartape is applied to moving packaging material by controlling the speed of the teartape in accordance with the speed of the packaging material so as to reduce tension imbalance. The speed of the teartape may be controlled in dependence upon the tension in the teartape. This can be achieved by supplying the teartape from a dispenser having a brake means (4,5) and a drive means (10,11,12) for regulating the speed of the teartape in dependence on the tension in the teartape.

Abstract: There is disclosed a three dimensional nonwoven web consisting of drawn and unoriented thermoplastic fibers formed from a blend of polypropylene and polybutylene, wherein the blend by weight is from 90% to 70% polypropylene and from 10% to 30% polybutylene. The blend can be a blend of a homopolymer of polypropylene and a homopolymer of polybutylene; a homopolymer of polypropylene and a copolymer of polybutylene; a copolymer of polypropylene and a homopolymer of polybutylene; and a copolymer of polypropylene and a copolymer of polybutylene. In addition, ternary blends comprising polypropylene, polybutylene, and terpolymer (propylene, ethylene, and 1-butene) are useful. The resulting nonwoven webs have enhanced strength, toughness, and tear resistance.

Abstract: A method of constructing fibrous composite material, and a resulting structure, having a modular construction in which the modules are formed on mandrel assemblies having a metal core and an elastomeric, deformable and removable sheath. Fibrous composite material is wrapped around each sheath, which in a complex shape such as a thrust reversing cascade for a jet engine, has sets of similar modules arranged in rows across layered composite ribs and in columns in which the modules are mutually engaged. When bonded by heat and pressure, the epoxy matrix of the composite material joins the ribs and the modules into a structure of high strength. In a cascade configuration a slotted medal plate is bonded to the ribs and the modules, being positioned in slots in the plate, with modules positioned fore and aft of the plate to increase the bonding area.

Abstract: Method to produce a roofing membrane for use in the construction of roofs which comprises mating of at least two plys of fiberglass scrim fabric to form a substrate for the roofing membrane. At least one of the plys of the substrate is a triaxially wound scrim fabric to provide additional strength to a standard open mesh rectangular formed scrim fabric.

Abstract: A resilient, low modulus, semirigid shell for use as a component of an article of luggage. The shell comprises a first nonwoven batt of thermoplastic resin fibers and an exterior material attached to the first nonwoven batt. The first batt and exterior material are thermally formed to a predetermined shape. The shell may also include one or more additional component layers selected from a second nonwoven, fibrous batt, a layer of backing material, a water impermeable film, and a lining material. In manufacturing the shell, the exterior material is attached to a first portion of a substrate material which is comprised of the nonwoven batt of thermoplastic resin fibers. A second portion of the substrate material is secured to an apparatus for thermal forming and the exterior material and substrate material are thermally formed to a resilient, low modulus, semirigid shell having a predetermined configuration.

Abstract: A sign is made by a pultrusion process by printing separate sign panels and attaching them to a fibrous component of the sign to make a longitudinally continuous sign panel subassembly which is beneath the surface of the sign. The sign panels are spaced apart in the subassembly by about the length of the sign and are fixed to the fibrous component prior to being pulled through a forming die. In the forming die, the subassembly is formed together with rovings, scrim resin and any other components of the sign into the cross-section of the sign. The sign panel subassembly saturates with the resin so that it blends in with the rest of the sign except for identification matter printed on it and is permeable to allow gases to escape as the resin cures in the die. The sign takes on its desired cross-sectional shape in the die and is cut off at its desired length after it exits the die. The sign panel may be on either side of the subassembly, and the subassembly may be beneath a surface layer.

Abstract: A fiber wallboard, or similar rigid or non-rigid substrate, is directed via a conveyor through a roll coater for providing an adhesive layer on one side of the substrate. Packages of continuous strands, such as textile yarns, are supported on a yarn creel, and drawn through expansion combs and underneath a nip roll for being press rolled into the adhesive coating layer. The pattern of lateral yarn separation established with the expansion combs creates a particular design on the finished face of the substrate, and may be varied. The substrate with applied strands is dried and trimmed. Marginal edge yarns are particularly located relative the substrate edges so that yarn gaps surround seams between adjacent panel substrates. Seaming tape with additional textile yarns supported thereon may be fitted in the gaps to hide such seams.

Abstract: An oriented nylon film, useful as a carrier web in the manufacture of fibrous reinforced resin sheets, is disclosed. Oriented nylon film containing a salt selected from at least one copper salt, at least one alkali metal halide, at least one alkaline earth metal halide or mixtures thereof is disclosed. The nylon film is preferably nylon 6, nylon 66, nylon 66/6 and/or mixtures thereof and the salt is preferably a copper salt, especially cupric acetate or cupric iodide, or potassium bromide.

Abstract: A method of forming an electric heater pad having a continuous resistance heater wire which zig-zags transversely back and forth in longitudinally spaced runs secured intermediate two insulating sheets, the method comprising: (a) laying the wire inbetween the sheets by successive passes back and forth transversely between the sheets, (b) drawing the two sheets with the wire therebetween between two first pressure rollers to bond central areas of the sheets together leaving border strips on each transverse slide edge of the sheets unbonded, and (c) subsequently, bonding the sheets together over the border strips, wherein each successive pass comprises: (1) catching the wire between the sheets in a nip between the first rollers near the juncture of the border strips and central areas at one side, (2) drawing the wire transversely across the sheets to beyond the side edges of the sheets at the other side where tension is applied to the wire forming it into a straight run extending transversely across the sheets

Abstract: An apparatus for forming an elongated visually detectable element on a sheet of absorbent material comprising, a device for extruding at least one colored strand, and a device for placing the strand on the sheet.

Abstract: This invention is generally accomplished by providing continuous self-adhesive strands of elastic to a substrate having retractable supports extending therefrom. The retractable supports in a convex pattern are contracted with the self-adhering elastic and the substrate bearing the elastic and supports is brought into contact with the web to which the elastic is to be transferred. The series of supports around which the elastic contacts are forced to retract as the self-adhering elastic is pressed against the web causing the elastic to transfer to the substrate thereby creating an elastic band on the substrate. In a preferred form the substrate is fed two strips of self-adhering elastic that are applied on each side of a series of a convex pattern of pins and then pressed together around opposing sides of the convex pattern of pins to seal the elastic to itself and sever the elastic, creating a contoured closed loop around the pins.

Abstract: Laminates particularly useful in vertical blind slat assemblies, and vertical blind slat assemblies utilizing the laminates are disclosed. The laminates comprise strand material which is not free hanging and in which there are substantial spaces between the strands to allow light to pass through the material, and a sheet-like layer to which the strand material is secured so that the strands of the laminate are fixed. The laminates allow the color or other characteristics of a slat member or insert to be seen. The laminates can have differing surface characteristics, (e.g. texture) and strand colors, sizes and patterns. The sheet-like layer can be transparent or translucent. A laminate can be secured directly, for example by adhesive, to a slat member having light-transmitting properties (e.g. opaque or translucent), surface characteristics (e.g. texture) and/or color which affect the overall appearance of the slat.

Abstract: A method of sequentially producing a plurality of disposable headdresses in which the edge of the cap fabric has been folded inward around a peripherally extending elastic cord to provide a smooth edge which contacts the wearer, and provides superior adhesion between the elastic cord and the cap fabric by utilizing an elastic cord and fabric which are coated with or made of thermoplastically compatible materials. The elastic cord and fabric are assembled by passing the fabric and the cord through a guide system which turns the fabric side edges down from a horizontal plane to a vertical plane while an edge guide lays the elastic cord under the fabric, and then turns the fabric under the cord to sandwich in the folded edge. Warm air preheaters heat the elastic cord and the fabric before completing the fabric fold around the cord. The folded edges with the cord inside pass between dual heat wheels which physically press the fabric to the cord and also seal the fabric edge to the inside of the crown.

Abstract: Fiber-reinforced materials are produced by a process in which a heat-stable thermoplastic aromatic polyether A containing reactive groups, preferably nitrile groups and/or sulfur bridges and/or arylthio or alkylthio groups, if required together with a heat-stable thermoplastic polymer B which does not contain any reactive groups, is applied onto reinforcing fibers, the resulting semi-finished product is shaped, and the plastic matrix in the molding obtained is crosslinked so that there is virturally no increase in its glass transition temperature although the amount of soluble material is decreased to less than 60%, determined by extraction in boiling dichloromethane for one hour.

Abstract: A reinforcing composite for bituminous roofing membranes is made by combining as a first layer an open network of non-woven adhesive-free continuous filament yarns and as second and third layers, placed one on each side of the first layer, lightweight preformed mats or networks, and thereafter impregnating them with an adhesive resin which is then dried or cured.

Abstract: Nonwoven web and method of making including interbonded thermoplastic fibers in an array of hollow projections extending outwardly from at least one surface of said web. The projections are separated by land areas of interbonded fibers, and the fiber orientation is greater in the projections than in the land areas. Either the projections or the land areas may be perforated as desired for controlled porosity and fluid flow properties. The nonwoven webs of the invention may be made by a number of processes but, preferably, are made by forming directly on a surface with corresponding projections with or without apertures and a vacuum assist or by forming on an apertured surface with a pressure differential sufficient to draw the fibers through the apertures forming the projections.

Abstract: Colored polyester film laminates, well adopted as leaders for cassette recording tapes, are facilely produced by (a) coating one face surface of a first length of polyester film with a layer of colorant and adhesive, (b) heating said coated first length of polyester film to a laminating temperature, (c) heating a second length of polyester film to essentially the same laminating temperature as that of said first length of polyester film, (d) hot calendering and coextensively laminating together said first and second lengths of polyester films to produce a polyester film laminate which comprises a colorant/adhesive interlayer, and then (e) cooling and rolling said product laminate.

Abstract: A composite substrate for use as a coversheet on disposable articles such as disposable diapers, sanitary napkins, disposable bed pads, nursing pads, finger dressings, and incontinent diapers, or the like. The cover sheet comprises an inner layer of polyethylene thermoplastic film secured to and between the inner surfaces of a top layer and a bottom layer of nonwoven polypropylene fibrous webs, by means of a pair of, one of which being a heated embossed roll applied to at least one of the outer surfaces of the fibrous web. The heat from the heated roll causes the film to melt in discrete areas forming apertures therein without substantially affecting the fibrous webs. As the film melts, it contacts fibers in the substantially unaffected adjacent fibrous web layers, causing the film and webs to be secured to each other at least at the peripheral edges of the discrete apertured areas, leaving a matrix of fibers covering the apertured areas.

Abstract: An apparatus for manufacturing easy-to-open bags comprising a pair of feed rollers, at least one puncher disposed downstream of said feed rollers, upper and lower separating rollers disposed downstream of said puncher, tear string positioning member disposed downstream of said separating rollers, heat bonding means disposed downstream of tear string positioning means, bag making means disposed downstream of said heat bonding means and cutting means disposed downstream of said bag making means.

Abstract: Lamination of film to woven fiber is achieved by localized infrared heating to heat directly onto the fibers, which in turn cause the covering film to soften and bond only in the area contacting the fibers.

Abstract: A method of making a high density dimensionally stable encapsulated circuit board. A curable adhesive is utilized to bond insulated wires to a substrate, the dimensional stability of which is maintained by a sheet of relatively thick copper foil. Since the adhesive is cured and since the copper foil returns to the same dimensions when thermally, mechanically or chemically cycled, the entire composite is dimensionally stable.At each location where a connection is to be made to a wire, the wire has a non-linear geometrical portion. The increased dimensional stability plus non-linear shaped portion of the wires allows connections to be made to the board utilizing a very small drill. The result is a high density stable circuit board.

Abstract: A bow limb which is totally molded essentially filled with unbroken longitudinal strands of fiberglass oriented in the central configuration in parallel strands, but as approaching the exterior of the bow, the strands conform to the exterior configuration of the limb. The bow limb is also characterized by a substantially constant cross-section even though width and thickness may vary longitudinally. This maintains a constant ratio of resin to fiberglass which is important to insure uniform strength characteristics. If the concentration of resin to fiberglass becomes too great, a brittle or weak point which invites breakage can occur. If the fiberglass to resin ratio is too great, inadequate bonding can result in bending failure.

Abstract: A surgical compress is described which is made of an absorptive layer and a wound covering layer, the covering layer spun or otherwise made of nonwoven hydrophobic fibers so that absorption of wound secretions is facilitated.

Abstract: A method and apparatus for continuously and efficiently producing bouffant caps, the arrangement comprising a section for supporting and supplying a thin band-like material wound in roll form, a laying section for laying stretchable linear elements in stretched condition on opposite sides of the band-like material being continuously payed out from the supply section, a welding section for integrally attaching the laid stretchable linear elements to the band-like material, a zigzag folding section for widthwise zigzag folding the band-like material having said stretchable linear elements welded thereto, a fixed length seal section for welding at regular intervals the stretchable linear elements laid on the opposite sides of the zigzag folded material, and a cutter section for cutting the material at the middle of each weld region.

Abstract: The method of the present invention produces a tape of high performance reinforcing fibers having improved alignment between the fibers and improved maintenance of that alignment in processing and molding applications. The method involves contacting one or more of the continuous high performance reinforcing fibers with a polymer impregnated mat. The polymer is compatible with any polymeric material used in the subsequent processing or molding applications. The contacting is performed with the high performance fibers under tension, and the tension is removed when the fibers are properly aligned into a tape in contact with the impregnated mat. The tape material can be used with various molding compounds such as sheet molding compounds and high reinforcement content molding compounds and thermoplastic molding materials wherein the molding compound is contacted with the tape product.

Abstract: A conductive structure in which conductive fibers a.sub.1 are sticked to the substrate B by melting thermally fusible fibers a.sub.2 entangling with said conductive fibers a.sub.1. This structure is manufactured by sticking conductive fibers a.sub.1 to the surface of the substrate B to which the cloth-like material A containing conductive fibers a.sub.1 and thermally fusible fibers a.sub.2 is sticked under pressure at a temperature not lower than a melting point of said thermally fusible fibers a.sub.2.

Abstract: Here is disclosed method for attaching elastic band to sanitary articles such as disposable diapers. The elastic band is cut into predetermined lengths which are then intermittently attached by adhesive to a web forming said articles. Said elastic band is severed on a surface of a rotary suction drum so that the respective lengths thus severed and isolated may be intermittently attached to said web. Said elastic band may comprise a plurality of relatively narrow or fine rubber strands. Particularly in such a case, said elastic band is attached to a support tape wider than said elastic band and having high flexibility before cutting so that these rubber strands may be reliably held on the surface of said suction drum.

Abstract: A laminated mineral fibre mat consisting of substantially randomly arranged mineral fibres which are held together by organic binders where they cross one another and which form the mat and of a lamination adhering to the mat by means of an organic adhesive, characterized in that a plane substantially free from organic binder is provided in the mat parallel to and in the vicinity of the lamination, whereby the laminated product is rendered fire resistant. The binder-free zone is created prior to lamination by removal of the binder from the mat.

Abstract: A nonwoven textile fabric laminate comprising at least one layer of nonwoven textile fabric secured by needle punching to an elastic layer such that the nonwoven fabric layer is permanently stretched when the elastic layer is drafted to a condition within its elastic limit and the nonwoven fabric layer exhibits increased bulk when the elastic layer is allowed to relax and return to substantially its condition prior to drafting. One form of the fabric laminate includes a nonwoven textile fabric layer needle punched to each side of the elastic layer. Various methods and apparatus for producing such laminates are also disclosed.

Abstract: Multi-layer fibrous sheet laminate having layers with criss-crossing predominate grain directions, each layer being a three-dimensional reticulate structure of polymer fibers precipitated in situ from a polymer solution in a solvent or swelling agent therefor. The layers are produced by extrusion from a slot onto a collecting surface moving away from the slot to impart the predominate grain direction thereto and the laminate can be produced in a single extrusion operation utilizing two sequentially arranged circular extrusion slots with a common tubular collecting surface while rotating such extrusion slots in different relative directions.

Abstract: A perforated drainpipe in which at least one sheet comprised of polymeric material is shaped in generally tubular configuration with adjacent edges thereof being slightly spaced apart to define therebetween a gap extending along the tubular sheet, and at least one ribbon comprised of polymeric material, which can be the same or different as that in the tubular sheet, helically wound around the tubular sheet, preferably by extrusion, and integrally bonded thereto so as to reinforce the same and maintain the shape of the same. The sheet or sheets can extend longitudinally, being bent or curved width-wise so as to have such tubular shape, with the gap extending longitudinally.

Abstract: A telltale structure which includes an elongate base tape with a pressure sensitive adhesive coating on the inner surface to engage the surface of an object to be studied.Bonded to the outer surface of the base tape is an elongate overlay tape which contains a plurality of longitudinally spaced apertures.Captured between the juxtaposed portion of the tapes are the inner end portions of thin, flexible streamers which have the free outer portions thereof within the confines of the apertures, whereby said outer portions can be acted upon by a fluid medium flowing over the surface of the object to be studied.In producing the telltale structure, a continuous length of streamer material is laminated between the two tapes to provide streamer portions which are exposed in the apertures in the overlay tape, and one end of each exposed portion is then severed to provide the aforesaid free outer portions.

Abstract: There is disclosed a novel apparatus and process for melt-blowing from fiberforming thermoplastic molten polymers to form fine fibers by extruding through orifices in nozzles the molten polymer at low melt viscosity at high temperatures where the molten fibers are accelerated to near sonic velocity by gas being blown in parallel flow through small orifices surrounding each nozzle. The extruded molten polymer is passed to the nozzles through a first heating zone at low incremental increases in temperature and thence rapidly through said nozzles at high incremental increases in temperature to reach the low melt viscosity necessary for high fiber acceleration at short residence time to minimize or prevent excessive polymer degradation.

Abstract: A composite material, especially suitable for chemical apparatus construction is formed of a layer of a thermoplastic synthetic resin and a textile layer pressed onto the resin layer in the heated condition. The textile layer is a mechanically prestrengthened, polyester fiber mat bound chemically with a binder consisting of a synthetic resin dispersion of polymers and/or copolymers of esters of acrylic and methacrylic acid and of acrylonitrile. Needling is a preferred procedure for mechanically prestrengthening the mat.

Abstract: A nonwoven fabrics comprising an upper layer having a substantially smooth surface and a lower layer having a density lower than that of the upper layer is provided; wherein the upper layer contains, as a principal element thereof, hydrophobic fibers, denier thereof being finer than in the lower layer, and containing a larger amount of adhesive bonding materials than in the lower layer; the lower layer contains, as a constituent fiber thereof, hydrophilic fibers and hydrophobic fibers, denier thereof being coarser than in the upper layer, and containing a smaller amount of adhesive bonding materials than in the upper layer.

Abstract: A method of reeling and unreeling a reinforced veneer sheet is provided. A veneer sheet peeled off from a log on the veneer lathe is subjected to a reinforcing step, in which an elongated cut is formed on one side of the sheet across the grain and a length of cord is embedded in it. In a reeling operation, the reinforced veneer sheet is wound onto the reel with its cut side facing radially outward. In an unreeling operation, on the other hand, the sheet is unwound from the roll with its cut side facing downward. This method prevents the embedded cord from slipping out of the engagement with the elongated cut during the reeling and unreeling operations.

Abstract: Apparatus and process for successively fabricating disposable diapers including devices for and the steps of, generally as follows. The components of the diapers are moved in a generally longitudinal path of travel through the apparatus during fabrication of the diapers. Multi-layer interior absorbent pads are produced by fiberizing a first wet-pressed cellulosic fiber sheet and air-laying the fiberized fibers into a bottom layer and fiberizing a second wet-pressed cellulosic fiber sheet and air-laying the fiberized fibers into a top layer in superimposed relation on the bottom layer as the pads are being moved in their longitudinal path of travel. A top cover sheet and a bottom cover sheet are positioned on either side of the multi-layer pad and are secured to each other along longitudinal and transverse edges to form interconnected diapers which are subsequently severed to complete fabrication of the diapers.

Abstract: A low density matting structure of improved transverse strength obtained by vertically laying continuous melt-spun thermoplastic macrofilaments (diameter=0.1-1.5 mm) onto a horizontally moving profiled support in overlapping rows of irregularly looped filaments to form a peak and valley three-dimensional structure undulating in its longitudinal and/or transverse directions. The matting articles consist essentially of the melt-spun filaments which are self-bonded or fused at random points of intersection without using any bonding agent or reinforcing inserts, and the resulting matting is especially distinguished by a high transverse strength per unit of surface weight of at least 2 Nm/g and preferably 4 Nm/g.