Abstract: A machine and method for making bags is described and includes a web traveling from an input section to a rotary drum, to an output section. The rotary drum includes at least one seal bar, having a single sealing zone, and a weakening zone disposed within the single sealing zone. The single sealing zone may be a heated perforator, and may include a heating wire. The heating wire may be an NiCr wire stitched into the heater, and be disposed on a cap or on the seal bar. The weakening zone may create a line of weakness that is uniform or varies in intensity. The sealing zone may include temperature zones, cartridge heaters, cooling air, or heated air, or a source of ultrasonic, microwave or radiative energy.

Abstract: The production of liquid crystal displays (LCDS) on plastic substrates is desirable over glass substrates so that the finished product is thinner, lighter, and more robust. Plastic substrates can enable the use of new and different processing techniques which are not possible on glass such as roll-to-roll processing. This invention discusses an advancement which is laser cutting a plastic substrate and display layer. One aspect of the invention is laser cutting and welding together two or more plastic substrates and LCD layer therebetween from a larger sheet or roll of plastic LCDs.

Abstract: Provided are a package and a method of manufacturing the package capable of suppressing corrosion of a bonding material and providing excellent airtightness, and to provide a piezoelectric vibrator, an oscillator, an electronic apparatus, and a radio-controlled timepiece. A bonding material formed on a front surface of a base substrate is anodically bonded to a frame region of a lid substrate. On the outer surface of a package, a protection film made of a material having higher resistance to corrosion than the bonding material is formed so as to cover at least the bonding material exposed between the base substrate and the lid substrate.

Abstract: A method of forming a building material with a pre-applied adhesive, the method comprising the steps of manipulating a first membrane and a second membrane to be spaced from one another along parallel adjacent edges to form a gap; securing a single strip of adhesive tape to a top surface of both said first and second membranes adjacent to said adjacent edges so that said adhesive tape extends over said gap; and cutting along the length of said adhesive tape to form a first adhesive tape and a second adhesive tape, said first adhesive tape being secured to the top surface of said first membrane and extending over a portion of said gap, and said second adhesive tape being secured to the top surface of said second membrane and extending over a portion of said gap.

Abstract: A method of forming a hem of an elastic material includes laying a first stretch fabric sheet upon a second stretch fabric sheet, cutting an excess edge strip from the first stretch fabric sheet and the second stretch fabric sheet along a fuse line and simultaneously fusing the sheets together along the fuse line, positioning an elastic strip between the first and second sheets along the fuse line, and fusing the elastic strip to one of the sheets to form a hem.

Abstract: A disconnect transfer conduit comprising flexible tubing; a deformable sleeve surrounding a portion of the flexible tubing; wherein the sleeve is attached to the flexible tubing and is formed of a material having plasticity such that pressure applied to the sleeve causes the sleeve to deform about and seal the flexible tubing and upon continued application of pressure to the sleeve, the sleeve and flexible tubing are cut and the sleeve retains a deformed shape substantially sealing the tubing. Also provided is a method of sealing flexible tubing comprising applying pressure to a sleeve attached to flexible tubing to deform the sleeve and seal the tubing; wherein, applying further pressure to the sleeve to cut the sleeve and tubing, thereby leaving the tubing substantially sealed where cut.

Abstract: An end face of an intermediate layer of a multilayer structure is stably covered by surface resin layers at a time of cutting the multilayer structure. A cutting method of the multilayer structure includes the steps of: compressing and deforming the multilayer structure, while extending respective layers of the multilayer structure to provide a thin thickness portion, so that an upper layer bites into a lower layer by pushing a push cutter, by a predetermined amount, into the multilayer structure supported by a cutter receiving portion, in a fused state of at least one of the resin layers forming the multilayer structure; and push-cutting the compressed thin thickness portion S till the push cutter abuts against the cutter receiving portion so as to converge an intermediate layer and surface resin layers of the multilayer structure to the abutting portion A of the push cutter and the cutter receiving portion.

Abstract: A waterless-toilet liner has a seat panel adapted to lie atop a waterless-toilet seat and formed with a central hole of a size and shape generally corresponding to a size and shape of the hole of the seat, and a bag having an upper rim secured to the seat panel around the hole therein. This liner is made by first advancing a foil tube to a first work station and forming a cross-seam and cut in the foil tube-to cut therefrom a bag having an open end. Then the open end of the bag is fitted between a pair of foil sheet. An opening is cut through the foil sheets and open end of the bag and the edges of the bag at the opening and there adjacent are bonded to the foil sheets. Then the foil sheets are cut through or perforated downstream of the bag.

Abstract: A conductive member for a non-contact type data carrier such as a wireless tag is simply and cheaply manufactured. A method for manufacturing a conductive member for a non-contact type data carrier comprises: a printing process during which, while a base material (4) is run, a bonding agent layer (5) is printed in a predetermined pattern on the surface thereof, and is dried; a bonding process during which a conductive layer (6) is laminated on the surface of the bonding agent layer (5) for heating and bonding; a punching process during which the conductive layer (6) is punched in the above-described pattern on the base material (4); and a separating process during which an unnecessary portion (6b) of the conductive layer (6) is separated from the base material (4). Accordingly, a conventional multilayered laminated sheet is not required to realize reduction in the material.

Abstract: A process for making a noise absorber carpet including a fabric layer portion and a resinous backing layer portion including the substantially concurrent steps of continuously feeding a softened resinous backing material from a backing resin feeder onto a backing roll to form a continuous resinous backing sheet thereon, and continuously feeding a heated continuous fabric sheet via a fabric roll onto the backing sheet continuously formed on the backing roll, wherein the backing roll includes spike depressions and perforation pins on its surface, and wherein the fabric roll is located close to the backing roll to press the fabric sheet against the backing sheet as the sheets proceed between the rolls and mold spikes and perforations on the backing sheet, the backing roll being cooled to a temperature range between 10 degrees Celsius and 50 degrees Celsius with a cooling medium to harden said spikes and perforations and provide bonding between the fabric sheet and the backing sheet.

Abstract: A method of manufacturing a breast cup of a brassiere may include the steps of providing a pad including a first edge portion and a second edge portion, providing a fabric cover including a third edge portion and a fourth edge portion, superimposing the first and third edge portions, connecting the superimposed first and third edge portions together, superimposing the second and fourth edge portions, connecting the superimposed second and fourth edge portions together, ultrasonically cutting and fusing the connected first and third edge portions to form a first line of fusion joining the pad and the fabric cover, ultrasonically cutting and fusing the connected second and fourth edge portions to form a second line of fusion joining the pad and the fabric cover, and turning the joined pad and fabric cover inside out along the first and second lines of fusion to form seamless edges.

Abstract: Disclosed is a method and apparatus for manufacturing multiple layer composite structures and structures containing components made of multiple layer composite structures, comprising dispensing layers of composite material, trimming each layer to its final shape as it is being dispensed, and positioning it properly with respect to prior layers in the part lay-up.

Abstract: A method for making a plurality of electromechanical devices including attaching a laminar electromechanical structure to a receiving substrate using a not appreciably cured adhesive in a liquid state, laser cutting the laminar electromechanical structure while the adhesive is not appreciably cured to form a plurality of electromechanical devices, and curing the adhesive.

Abstract: The present invention discloses methods and apparatuses for the separations of IC fabrication and assembling of separated IC components to form complete IC structures. In an embodiment, the present fabrication separation of an IC structure into multiple discrete components can take advantages of dedicated IC fabrication facilities and achieve more cost effective products. In another embodiment, the present chip assembling provides high density interconnect wires between bond pads, enabling cost-effective assembling of small chip components. In an aspect, the present process forms interconnect wires on a thermal decomposable adhesive, and after positioning the wires at proper bond pad locations, releases the interconnect wires onto the bond pads.

Abstract: A method of producing a laminated label structure that includes a region that is markable after assembly of the label structure is disclosed. The method comprises providing a strip of base material having a front face, applying a release material to a markable region of the front face for being marked after assembly of the label structure, and cutting the base material to form a first portion of a perimeter of the label structure. The method further comprises positioning a laminate material over a portion of the front face including the markable region, cutting the base material and the laminate material to form a second portion of the perimeter, cutting the laminate material substantially along a margin of the markable region without severing the base material; and peeling away from the base material a portion of the laminate material overlying the markable region of the front face.

Abstract: An embodiment provides an ornamental sheet and a method of manufacturing the ornamental sheet, wherein an ornamental pattern for use in ornamenting a fabric product may be easily peeled off from a film when using the ornamental pattern. A laser beam is applied while moving it along the contour of a pattern on a surface. By this, a synthetic fiber sheet piece with the pattern printed is cut out of a synthetic fiber sheet. When cutting out, a cut line (groove) is formed in the film to extend to the vicinity of the bottom face of the film by heat due to the irradiation with a laser beam. Also, a periphery of an adhesive layer of the synthetic fiber sheet is welded to the film, and a periphery, which is close to the periphery through the cut line, of the adhesive layer of the synthetic fiber sheet is welded to the film.

Abstract: An end face of an intermediate layer of a multilayer structure is stably covered by surface resin layers at a time of cutting the multilayer structure. A cutting method of the multilayer structure 10 includes the steps of: compressing and deforming the multilayer structure, while extending respective layers 11, 12, 13 of the multilayer structure to provide a thin thickness portion, so that an upper layer bites into a lower layer by pushing a push cutter 15, by a predetermined amount, into the multilayer structure supported by a cutter receiving portion 14, in a fused state of at least one of the resin layers forming the multilayer structure; and push-cutting the compressed thin thickness portion S till the push cutter abuts against the cutter receiving portion so as to converge an intermediate layer 11 and surface resin layers 12, 13 of the multilayer structure to the abutting portion A of the push cutter 15 and the cutter receiving portion 14.

Abstract: Apparatus and methods are provided for substantially continuously forming thin-walled sleeves that may be incorporated into tubular devices sized for introduction into a patient. In one embodiment, a pair of sheets including coated surfaces oriented towards one another are directed through a cutting apparatus to cut the sheets into multiple pairs of strips. The pairs of strips are bonded together to create a plurality of sleeves having lumens defined by the coated surfaces. In another embodiment, a sheet having a coated surface is fed through a cutting tool to separate the sheet into a plurality of strips, and the strips are formed into sleeves, e.g., by feeding the strips through a die or mandrel using a substantially continuous process. Optionally, the sleeves may be subsequently cut into individual tubular devices and/or further processed, e.g., by providing one or more layers around the sleeves to create catheters, sheaths, or other apparatus.

Abstract: A tube connecting apparatus that can carry out self reset operation without giving damage to the apparatus and that safety of an operator is considered. The tube connecting apparatus has an EEPROM memorizing information with respect to a connecting process state of tubes. When electric power is inputted, the apparatus judges whether power supply was shut off during tube connecting operation based upon the information memorized in the EEPROM with respect to the connecting process state of tubes and a detecting result of a wafer 41 according to a wafer position detecting sensor 421, and carries out reset operation. In the reset operation, the apparatus restarts and completes connecting operation (S620 to 632) by heating the wafer again to fuse the tubes adhered to the wafer (S614, 616). Error indication is displayed at a LCD display to secure connecting strength and the like (S634). A locking state is not cancelled during cooling time after heating of the wafer is stopped to secure safety (S628 to S632).

Abstract: The present subject matter relates to a method which includes positioning a bottom and top polymeric separator sheet on a working surface, with a substantially planar battery anode disposed therebetween; applying a pressure and an electrical current to a cutting and welding tool such that top and bottom polymeric separator sheets are welded into a bag and such that the bag is excised from the top and bottom separator sheets, with the battery anode disposed in the bag; stacking the battery anode and at least one cathode into a battery stack; and disposing the battery stack into a battery case having at least one feedthrough, with a first terminal connected to the battery stack through the at least one feedthrough, and with the battery case filled with an electrolyte, wherein the protrusion is defined by laser cutting the cutting and welding tool, machining the cutting and welding tool, or photochemical etching the cutting and welding tool.

Abstract: The invention is based on the aim of providing a novel office tool, and a corresponding method, wherein various application advantages of known office tools are combined. The invention provides an adhesive tape stamp 1 that is configured to implement a course of movement, wherein an adhesive tape section having a defined length is pressed onto an object in a stamping device, having a separating device 12, which is configured and/or disposed in order to separate an adhesive tape end as the adhesive tape section 23 from a continuous adhesive tape 19 at a separation point 22, and having a stamping device 11, wherein the stamping device 11 is configured and/or disposed to press the adhesive tape end and/or the adhesive tape section 23 onto the object in the stamping direction 4.

Abstract: A perforated laminate comprising at least first and second layers and apertures extending through at least the first layer. The first layer is a nonwoven or formed film material, and the second layer comprises an absorbent structure. The at least first and second layers are primarily joined at the periphery of the perforated apertures. The laminate is particularly useful as a topsheet for an absorbent article, such as a disposable diaper or sanitary napkin. Also described are various materials and methods used to create such laminates.

Abstract: A method for manufacturing a blood filter assembly is provided that includes the steps of providing a first housing sheet and a second housing sheet. The method includes locating and sealing at least one port onto each of the first and second housing sheets. The method includes locating the filtration medium between the first housing sheet and the second housing sheet. The method includes applying heat and pressure to form at least one seal that commingles the first and second housing sheets along with the filtration medium, wherein the periphery of the seal commingles only the first and second housing sheets.

Abstract: A method of depositing at least one functional film on at least one part of one or two faces of flat or curved substrates. The substrates are conveyed individually to a film-coating station and are advanced therein along the plane or neutral plane thereof. The film-coating station includes a film-applicator assembly including at least one axis perpendicular to the direction of advancement of the substrate and parallel to the advancement plane, at least one reel of film being mounted to the assembly. The method: conveys the leader of the film from each of the reels, which is to be applied to, and held against one face of, the substrate at a selected position, into the film-coating station; unwinds the reels such that the film can be applied in at least one strip to the advancing substrate; and cuts the film at a selected moment. Moreover, the new film leader is held to be ready to be applied at the selected position on the same substrate on a subsequent substrate.

Abstract: A label with top, bottom and edge surfaces is attached to a thermoplastic substrate by a method comprising the steps of: A. Placing the bottom surface of the label in contact with a surface of the substrate; B. Melting a portion of the substrate beneath the label or adjacent to an edge of the label; C. Drawing a portion of the melted substrate over an edge of and onto the top surface of the label such that the portion of the melted substrate on the top surface of the label is continuous with the substrate; and D. Solidifying the melted substrate. The attachment does not require adhesive or mechanical fasteners, and the label and thermoplastic substrate can be made of any material that will withstand the conditions of the environment to which they will be exposed.

Abstract: A method and a device for the automated application of a self-adhesive paint film to a three-dimensionally curved bodywork part, using a robotic application tool, the paint film being held ready in the form of a multi-layered film composite ready for picking up. After picking up has taken place, a protective strip on the adhesive side is removed from the film section, which is held taut, by means of a contact piece attached to the film composite on the end side and the adhesive side of the film section is thereby exposed. The paint film section is subsequently aligned above the body part to be covered, at a small distance from it, and is progressively pressed onto the bodywork part from the spaced-apart, taut position by means of a roller or doctor moving over the paint film.

Abstract: Elastic compressible and flexible spacing supports out of foam or similarily compressible material is described for the filling of mattress cores, upholstery and pillows which are connected to one another as rib- or tube-like structures arranged in rows standing uprightly or lying horizontally and fixed at least on one side to an elastically resilient deck plate or cover. These spacing supports avoid the stiffness of bulk foam and they are used in a variety of geometrical profiles. They make possible a foam saving factor of two to three, a zone variation and the implanting of additional springy elements and they yield a superventilation of the mattress cores. A roll packing of the cores or the finished mattresses is possible.

Abstract: A disposal bag intended for a tampon consists of two square sheets welded together only along two adjacent sides of dimension a. The bag can be easily held open with one hand for reception of the tampon and a closed package can be made by tying the free corners of the bag. The disposal bag can be mass produced very easily and in an inexpensive way by two manufacturing methods, according to which a two layer web 2×a which is twice the width of the bag, is welded continuously along the edges (10b) of the web and transversely at intervals 2×with a double bead (10a). Transverse perforations (11) are stamped (6) at intervals a and the web is cut continuously at its middle (12) and individual tear-off bags are rolled up on two rolls (4a).

Abstract: A manufacturing method of a laminated plate (19) includes: a first step of supporting, by a support member (9), a thermoplastic resin-made laminated material (1) in which a pair of plate-like members (3, 4) are laminated to each other while interposing a longitudinal wall portion (2b) so that a peripheral edge portion (1a) of the laminated material (1) can be exposed, and heating and softening the peripheral edge portion (1a) by blowing a hot air to the peripheral edge portion (1a); and a second step of pressing the plate-like member (4) as one of the pair of plate-like members (3, 4) against other plate-like member (3) by thrusting a cutting blade (17a) of a cutting die (17) against the heated and softened peripheral edge portion (1a), thereby bringing the pair of plate-like members (3, 4) into contact with each other and welding the plate-like members (3, 4) to each other, and then cutting the laminated plate (19) out of the laminated material (1).

Abstract: The apparatus for applying adhesive sheets includes a sheet applying base which is placed on a placement base so as to be withdrawable from the placement base and which has a sheet applying region to which adhesive sheets closely before and after a junction portion is to be applied. In the sheet applying base, an upstream-side end portion of the sheet applying region in the adhesive sheet feed direction is placed so as to confront an end portion of the sheet applying head, and moreover a sheet escaping space opened downward is set in place.

Abstract: The present invention describes a blade assembly for use with side-sealing and lap-sealing machines, which are used to seal thermoplastic film. Briefly, the cutting element is oval in shape, and has its entire outer edge profiled. This provides four distinct cutting surfaces, depending on the mounting orientation of the cutting element in the machine. This cutting element is held against a heating block, and its temperature is continuously monitored by a temperature sensor. The sensor is spring-loaded to insure solid contact with the cutting element, and thus, accurate temperature measurements. This entire assembly is then encased in insulation. Additionally, the cutting element is mounted on an adjustable platform, which permits vertical adjustments relative to the film. Thus, the specific portion of the cutting element which actually engages the film can be adjusted to improve the cutting quality or further extend the useful life of the cutting element.

Abstract: A flexible laminated wood material produced by applying an adhesive to surfaces of a plurality of wood materials; laminating the plurality of wood materials with their grain directions substantially aligned with each other to obtain a laminated product 2; placing the laminated product 2 in a press machine 7 in a pressure-resistant container 4; compressing the laminated product 2 in a laminating direction to reduce the thickness to ½ to ? of the original thickness in an environment heated with high-pressure steam introduced in the pressure-resistant container 4; cooling the compressed laminated product; and cutting the laminated product along the laminating direction.

Abstract: A method of cutting material for use in an implantable medical device employs a plotted laser cutting system. The laser cutting system is computer controlled and includes a laser combined with a motion system. The laser precisely cuts segments out of source material according to a predetermined pattern as designated by the computer. The segments are used in constructing implantable medical devices. The cutting energy of the laser is selected so that the cut edges of the segments are melted to discourage delamination or fraying, but communication of thermal energy into the segment beyond the edge is minimized to avoid damaging the segment adjacent the edge.

Abstract: A device for sealing and cutting a disposable multilumen tubing used with an endoscopic apparatus is disclosed. The device comprises a first jaw and a second jaw pivotally articulated to one another, each having a front portion and a rear portion. At least one heating assembly is fixed within the front portion of at least one of the jaws, said heating assembly having a heating element. There also is wiring for connecting the heating assembly to an energy source, supplying electrical power thereto. At least one operating handle engagement portion is provided, which positions the device with respect to a port provided at an operating handle of the endoscopic apparatus and secures the device with respect to the multilumen tubing.

Abstract: A sonotrode and an anvil have a spacing determined by a manually adjustable mechanical device. The adjustable mechanical device includes an abutment device which maintains the distance between the sonotrode and the anvil greater than the minimum space, and which is provided with an elastic device for elastically attracting the sonotrode and the anvil to each other. Thus, it is possible to control efficiently the melting of material between the sonotrode and the anvil, for reliable welding, or for efficient cutting, or for welding along the cutting line.

Abstract: A method for making a tubular device includes coating a first surface of a thin sheet, rolling the sheet such that side edges of the sheet are disposed adjacent one another with the coating disposed inwardly, creating a longitudinal seam along the side edges to create a sleeve, and attaching a tubular structure around the sleeve. In another embodiment, the method includes coating a first surface of a thin sheet, wrapping the sheet partially around a mandrel with the coating disposed inwardly, positioning a slotted tube around the sheet and mandrel, attaching the tube to the thin, and trimming any excess material of the sheet. In another embodiment, the method includes coating an outer surface of a thin sleeve, inverting the sleeve, and attaching a tubular structure around the inverted sleeve, thereby providing a tubular device including a lubricious, hydrophilic, and/or otherwise coated inner surface.

Abstract: Apparatus and methods are provided for substantially continuously forming thin-walled sleeves that may be incorporated into tubular devices sized for introduction into a patient. In one embodiment, a pair of sheets including coated surfaces oriented towards one another are directed through a cutting apparatus to cut the sheets into multiple pairs of strips. The pairs of strips are bonded together to create a plurality of sleeves having lumens defined by the coated surfaces. In another embodiment, a sheet having a coated surface is fed through a cutting tool to separate the sheet into a plurality of strips, and the strips are formed into sleeves, e.g., by feeding the strips through a die or mandrel using a substantially continuous process. Optionally, the sleeves may be subsequently cut into individual tubular devices and/or further processed, e.g., by providing one or more layers around the sleeves to create catheters, sheaths, or other apparatus.

Abstract: A waterproof bottom corner of a tent structure and a method for manufacturing the same are developed. Extra clad cloths are welded on the inside and outside of the tent bottom cloth. The overlapped bottom corner tent structure is heated and welded. Then, an eyelet is mounted on the end portion, so that the waterproof bottom corner of the tent effectively protects against moisture. Therefore, it is easy and convenient to use the tent outdoors.

Abstract: A noise absorber carpet comprised of a fabric layer portion and a resinous backing layer portion is provided. The fabric layer portion and the resinous backing layer portion are heat bonded with a press into the noise absorber carpet, and the press includes perforation pins and a cooling medium. The resinous backing layer portion is provided with noise absorbing perforations formed by contact with the perforation pins of the press and cooled by the cooling medium. The perforations having been cooled by the cooling medium with the press simultaneously with the bonding of the resinous backing layer portion with the fabric layer portion and the cooling of the press by the cooling medium, thereby providing for instant curing and fixation of the shape of the perforations.

Abstract: The present invention is directed to a method and apparatus for manufacturing a composite, foam/fabric material for use as protective material in products, and utilizes an apparatus which includes a punch press with punches arranged in rows and correspondingly aligned dies for receiving the punches therethrough. The system operates by punching a sheet of foam material into a plurality of discrete foam elements which are transferred onto a heated fabric substrate, and retained thereon by heat bonding. The apparatus consists, in one preferred embodiment, of a clamp plate which clamps a sheet of foam material onto a die plate, and after a punching sequence, the sheet of foam material, along with the sheet of fabric material, are indexed downstream, and the process repeats.

Abstract: A tear meniscus test device 1 includes a body part 2 having a elongated shape, which comprises a synthetic resin material or a synthetic rubber material, wherein a groove 3 is formed along the length direction of the elongated shape, and a water absorbing member 4 arranged in the groove 3.

Abstract: A method for forming an elastic laminate comprising: bonding a first nonwoven to an elastic film to form a laminate; activating the laminate to form an activated laminate; and bonding a consolidated nonwoven to the elastic film of the activated laminate to form the elastic laminate.

Abstract: A nasal dilator comprises a laminate of vertically stacked layers each comprising at least one member or component. The layers form a unitary, or single body, truss. The truss features horizontal regions adapted to engage outer wall tissues of first and second nasal passages and to traverse the bridge of a nose therebetween. The dilator acts to stabilize and/or expand the nasal outer wall tissues and prevent said tissues from drawing inward during breathing. Dilator members, including components thereof, are configured to dimensional criteria suitable to engage and provide effective dilation to nasal passages, that create lateral and longitudinal registration of dilator members or components during manufacture, and that facilitate manufacture with minimal material waste. Methods of manufacture further include progressive steps that fabricate and assemble components into finished devices, including user assembly thereof.

Abstract: A sealing assembly is employed to clamp together layers of a layered web, such as two layers of flexible laminate plastic film, and to bond and cut the layers by applying heat and pressure. The sealing assembly may include a pair of jaws, one of which has a sealing head with a conductive knife protruding from a tapered dielectric supporting base. The knife has a high thermal conductivity relative to the supporting base. A current supplied through the knife heats it and the heat of the knife raises the temperature of the supporting base to a baseline temperature. When the head abuts the layered web, a spike current through the knife raises its temperature momentarily to melt through, and therefore sever, the web.

Abstract: A web containing comprising side-by-side or eccentric core/shell conjugate short fibers A, which contain two kinds of polyester different from each other in intrinsic viscosity, and elastic conjugate fibers B, which contain a thermoplastic elastomer having a melting point lower by 40° C. or more than the two kinds of polyester, and a nonelastic polyester, with at least the thermoplastic elastomer being exposed on a surface of the fibers, is subjected to a heat treatment at a temperature equal to or higher than the melting point of the thermoplastic elastomer, so as to obtain a polyester elastic fiber structure, and then polyester woven or knitted fabrics are laminated adhered on both surfaces of the polyester elastic fiber structure with a polyester adhesive, followed by heat molding into a curved shape by a molding process depending on necessity, so as to obtain a composite fiber structure.

Abstract: A method of forming a hem of an elastic material includes laying a first stretch fabric sheet upon a second stretch fabric sheet, cutting an excess edge strip from the first stretch fabric sheet and the second stretch fabric sheet along a fuse line and simultaneously fusing the sheets together along the fuse line, positioning an elastic strip between the first and second sheets along the fuse line, and fusing the elastic strip to one of the sheets to form a hem.

Abstract: The invention is specially directed towards intermittent motion packaging machines where the packages are momentarily immobilized at a forming station for the time duration of the package sealing and cutting. The polymeric sheets or films are sealed and cut after being exposed to a laser beam in a controlled and optimized manner. The laser beam is shaped with appropriate optical elements to provide a desired intensity profile in the section of the films to be sealed or sealed and cut. With this method, a package can be sealed and cut simultaneously in one exposure step. An optical clamp holds the films together while they are being sealed by the laser. The optical clamp can reflect back to the films, partially or totally, the laser beam intensity that has not been previously absorbed. The optical clamp further allows to monitor the sealing and cutting process while the process is being performed.

Abstract: The ventilating system includes evaporative cooling of the exhaust air before it enters a heat exchanger to cool incoming fresh outside air. A suction fan pulls exhaust air through the heat exchanger and, in combination with a flow restrictor, reduces the pressure on the exhaust air and augments the evaporative cooling. The use of a pusher fan to force outside air through the heat exchanger ensures that any leakage in the heat-exchanger results in outside air entering exhaust air and minimizing the chances of contamination by leaking exhaust air into the incoming fresh air. The heat exchanger is made economically by heat-forming cavities in relatively thick thermo-plastic sheets, interleaving them with other thermo-plastic sheets having separate gas flow conduit structures, and securing the sheets together. Preferably, the heat-exchanger is an opposed-flow heat-exchanger giving improved heat-transfer efficiency.

Abstract: An apparatus is provided for forming bag edges in a layered plastic film. The apparatus includes a heated seal bar and a seal bar anvil. The seal bar anvil has a resilient tube configured to deform as the seal bar is driven into the tube to seal and sever a bag edge therebetween. According to one construction, the resilient tube is pressurized pneumatically from the inside so as to impart a specific, desired resilience to the tube as the tube and seal bar co-act on either side of the layered plastic film.

Abstract: A disposable wipe-out sheet that includes a plurality of long fibers bonded to a heat-sealable base sheet by sealing lines. The long fibers include groups continuously extending between each pair of the adjacent sealing lines to form bridge-like portions and groups severed in two sections between each pair of the adjacent sealing lines so as to fluff upward on the base sheet.