Abstract: Embolic implants, delivery systems and methods of manufacture and delivery are disclosed. The devices can be used for aneurysm treatment and/or parent vessel occlusion. Implant designs offer low profile compressibility for delivery to neurovasculature, while maintaining other necessary features such as density for occlusion purposes and desirable radial strength characteristics.

Abstract: A method for folding a fastener during a high speed manufacturing process and maintaining the fastener in a folded configuration throughout the high speed manufacturing process. The method includes obtaining an article that has a foldable fastener and moving the article in the machine direction during the high speed manufacturing process. The foldable fastener has first and second opposing surfaces, a web and at least one engaging member joined to the web. The method includes applying a frangible bonding agent to a first portion of the first surface of the fastening system; folding the fastening system such that the frangible bonding agent contacts a second portion of the first surface of the fastening system; and allowing the frangible bonding agent to cool at a temperature of less than 60° C.

Abstract: Aspects of methods and apparatuses herein relate to making elastic laminates, and more particularly, methods and apparatuses for applying fluids onto elastic material positioned on an advancing substrate. The elastic material may be in various forms, such as for example, elastic strands, ribbons, and/or panels. Particular embodiments of the apparatuses and methods disclosed herein provide for the application of viscous fluids, such as adhesives, in pre-determined patterns to elastic material positioned on an advancing substrate.

Abstract: A wire harness includes a wire harness main body and a protective member. The wire harness main body includes a trunk line and a branch line branching from the trunk line. In a state where a non-woven member covers the trunk line and a base end of the branch line, the protective member is formed by hot pressing a portion of the non-woven member covering at least the trunk line. A portion of the protective member covering the base end of the branch line is formed to be more pliable than a portion covering the trunk line.

Abstract: A shipping document comprises a first printable portion and a second printable portion attached together by a connecting strip comprising at least one detachable chad, and at least one detachable border strip removably attached to at least one free edge of the first printable portion. When the second printable portion is folded against the first printable portion the border strip extends beyond the second printable portion. When an adhesive is applied to the removable chad and the border strip, the shipping label can be secured to a surface by the adhesive and subsequently removed from the surface by detaching the border strip and the chad from the sheet, while the first and second printable portions remain attached along the connecting strip. The invention includes a method and apparatus for applying the shipping document to a surface.

Abstract: The present disclosure encompasses three-dimensional articles comprising flexible-composite materials and methods of manufacturing said three-dimensional articles. More particularly, the present system relates to methods for manufacturing seamless three-dimensional-shaped articles usable for such finished products as airbags/inflatable structures, bags, shoes, and similar three-dimensional products. A preferred manufacturing process combines composite molding methods with specific precursor materials to form fiber-reinforced continuous shaped articles that are flexible and collapsible.

Abstract: A system and method for welding edge seams at the edges of fabric is presented. A method begins by lowering a fabric pre-fold bar onto a piece of fabric. A pre-aligned portion of the fabric is pushed on top of the pre-fold bar so that the pre-fold bar is between the portion of fabric on top of the fabric pre-fold bar and other fabric below the pre-fold bar. The fabric on top of the fabric pre-fold bar is folded edge fabric and fabric not on top of the fabric pre-fold bar is not folded edge fabric. A folded edge is formed between these two sections of fabric. The method pinches some of the fabric at the folded end and then pulls the folded edge fabric off of the fabric pre-fold bar. After that, the method welds at least some of the folded edge fabric to the not folded edge fabric.

Abstract: In order to form stacks, of which each forms a book block, folded sheets are provided with an adhesive application or layer of adhesive before they are placed on one another. Said adhesive application is applied to the sheets adjacent to the folded edge of said sheets and extends in the direction of said folded edge which comes to lie in the spine of the book block. The adhesive can be applied as a continuous track or as a track which is interrupted multiple times, or else in a punctiform manner. The sheets are joined to one another in the stack by means of said adhesive application, with the result that they maintain their position within the stack during further transport of the stack.

Abstract: A sheet sticking apparatus 10 includes holding means 13 provided so as to be capable of holding an adhesive sheet S, and sticking means 12 that sticks the adhesive sheet S to an adherend surface W0 of an adherend W. The sticking means 12 includes a first sticking portion 15 capable of sticking a part of the adhesive sheet S held by the holding means 13 to a first sticking surface by pressure, and a second sticking portion 16 that sticks portions of the adhesive sheet S that have not yet been stuck by using the first sticking portion 15 to second sticking surfaces by pressure.

Abstract: A combined portable bias tape and covered piping cord making device. A spindle is rotatably disposed in a housing of a device for supporting a strip of material. Also, at least two folding tips are mountable in the housing—e.g., one for making bias tape and one for covering piping cord—each which can be separately mounted within the housing for making product. The device further includes a heated pressing assembly disposed in the housing for receiving and setting folded longitudinal edges of the strip of material. A cover is configured to enclose at least the spindle and part of the heated pressing assembly within the housing in the closed position. Multiple tips and/or parts can be interchanged depending on the size of the materials and/or the produced product (bias tape or covered piping cord).

Abstract: A tape laminating machine having a compaction roller lays up composite tape over a substrate having a convex radius. The compaction roller folds the tape as it moves over the convex radius, while simultaneously pivoting about a trailing edge of the tape to prevent the compaction roller from lifting off the tape laid just before the convex radius.

Abstract: A reusable hose bundling sleeve is provided that is made of a tightly-woven nylon material coated with urethane. Strips of hooks and loops are adhered and stitched to opposite ends of opposite sides of the sleeve. The reusable hose is installed by wrapping the sleeve around the hoses or cables such that the strips of hooks and loops align and engage. Notches can be cut along the length of the reusable hose bundling sleeve to allow for shorter hoses or cables within the sleeve to exit. Because of the materials used, the notches will not weaken the fibers and cause fraying. The reusable hose bundling sleeve is removed by separating the strips of hooks and loops and unwrapping the sleeve. The reusable hose bundling sleeve can be installed, removed, and reinstalled quickly and without diminishing durability. Alternatively, the sleeve may be adapted to be secured and/or hanged.

Abstract: A method of manufacturing an extended content booklet label. A multi-up book includes folds that are parallel to the book's spine. The multi-up book is disposed on the label web and held in place by an overlaminate. The overlaminate, book log and labels are all pre-trimmed in the longitudinal direction. The web is moved passed cutting elements to progressively slit the web and trim the major web into minor webs in which the overlaminate, booklets and labels are trimmed in the width direction to have a common edge.

Abstract: A planar electric circuit board may include a planar support of a foldable material defining a base surface and wings coupled to the base surface along respective folding lines so that the wings, when folded along the folding lines, are erected with respect to the base surface and remain in that position. An auxiliary circuit is on the planar support and may include pairs of capacitive coupling plates defined on the wings and on the base surface, and electric communication lines coupled to corresponding ones of the pairs of capacitive coupling plates.

Abstract: The present invention relates to a multilayer article comprising a first substrate with a first backing layer and comprising at least one further (second) substrate with a second backing layer, where these have been provided on respectively one side at least to some extent with a cold-seal adhesive layer and have been bonded to one another specifically via the contact between their respective cold-seal adhesive layers, to a process for the production of an article of this type, and also to the use of a printer with at least two unwind systems and with at least one cutting device for the production of articles of this type.

Abstract: A membrane cartridge is manufactured by repeatedly folding and joining two strips of membrane to form a cross-pleated cartridge with a stack of openings or fluid passageways configured in an alternating cross-flow arrangement. The cartridge can be modified for other flow configurations including co-flow and counter-flow arrangements. Methods for manufacturing such cross-pleated membrane cartridges, as well as apparatus used in the manufacturing process are described. Cross-pleated membrane cartridges comprising water-permeable membranes can be used in a variety of applications, including in heat and water vapor exchangers. In particular they can be incorporated into energy recovery ventilators (ERVs) for exchanging heat and water vapor between air streams being directed into and out of buildings.

Abstract: A method for sheathing a light guide with a flexible layer of sheathing. The method includes providing a light guide and a sheathing strip. The sheathing strip is made of a flexible material. The method also includes joining the light guide and the sheathing strip using a forming aid to form a light guide-sheathing composite. The forming aid places the sheathing strip about the light guide, leaving two excess ends of the sheathing strip extending from the light guide. The method further includes feeding the light guide-sheathing composite to a connection unit and connecting the two excess ends to produce a mounting tab for the light guide-sheathing composite.

Abstract: A method of manufacturing curved composite structural elements can include fabricating a web ply in a flat curve over a removable substrate and laying up the ply on a curved web surface of a manufacturing tool. The method also can include laying up a diagonal ply with fibers oriented at +/?45° from the centerline of the web surface. The method further can include cutting a unidirectional composite tape into segments and laying up the tape segments to form a cross ply with a fiber orientation normal to the centerline of the web surface. One or both edges of the diagonal and cross plies may be folded over one or two sides of the manufacturing tool to form one or two flange surfaces. Additionally, a cap ply can be laid up on one or both flange surfaces using composite tape. The structural element layup can then be inspected and any excess composite material can be trimmed away.

Abstract: Absorbent pods comprise a pouch formed of a porous material. The pouch contains an absorbent polymer in an amount sufficient to absorb at least about 20 mL of fluid. Preferably, the absorbent polymer is sodium polyacrylate and the porous material is a hydrophilic material. The absorbent pods absorb and retain fluids, including saliva.

Abstract: A method of preparing and applying folded leaflets or coupons to packets in a cigarette packer includes the steps of cutting single leaflets from a continuous strip material, scoring them with transverse crease lines and then causing each one to wrap around one of a set of winding members operating in conjunction with a fixed restraint; a leading portion of the leaflet is taken up by the winding member, which is then set in rotation while also revolving in close proximity to the restraint, in such a way as to bend the leaflet along the crease lines and form a succession of folds.

Abstract: The invention provides enclosure adhesives, methods of using the adhesives to bond for enclosing a multilayer structure and to articles of manufacture comprising the adhesives. The multilayer structure is a laminant of at least one composite film and at least one Kraft paper substrates. It has been discovered that an adhesive that comprises (a) a mixture of 1:1 to 5:2 of a metallocene catalyzed polyolefin copolymer with a density greater than or equal to 0.880 g/cm3 to a metallocene catalyzed polyolefin copolymer with a density less than 0.880 g/cm3; (b) a compatible tackifier; and (c) a compatible wax, has high adhesion to both Kraft and composite film with low blocking properties.

Abstract: Containment systems and methods safely and permanently encapsulate a sharp portion of a sharp medical instrument (e.g. a hypodermic needle). The containment system includes a cap or other container formed of a durable and flexible material and having a rim defining an open end configured to receive the sharp portion therein and an adhesive disposed on an interior surface of the container. The method of use includes inserting the sharp medical instrument into the container, and compressing the sides of the container to permanently encapsulate the sharp portion of the medical instrument within the adhesive. The adhesive may be an adhesive tape and may be protected before use by a covering, which may be removed at the time of use by pulling a pull tab extending from an opening in the container.

Abstract: A method of making a window blind includes following steps. Firstly, plural base fabrics are cut out, each base fabric is provided with a first end surface and a second end surface, and two opposite sides of the base fabric are formed respectively with a first bending section and a second bending section. Secondly, the first bending section and the second bending section of the base fabric are folded toward the first end surface of the base fabric, forming an opening above the first end surface between the first bending section and the second bending section. Thirdly, surfaces of the opening are coated with an adhesive and the base fabrics coated with the adhesive are stacked vertically that the adhesive on the lower base fabric is attached on the second end surface of the upper base fabric, allowing the base fabrics to be adhered and fixed by the adhesive.

Abstract: Methods for assembling diaper pants are disclosed herein. Each diaper pant may include a chassis and two side panels extending from the chassis. The side panels join a first waist region and a second waist region of the chassis. The methods may include the step of transferring the chassis to a rotating drum including a chassis folding member, a first panel folding member and a second panel folding member. The chassis may be folded about a lateral axis by the chassis folding member. The first and second folding members may also move toward each other and radially outward relative an outer surface of the rotating drum to position second end regions of the side panels in contact with a second waist region of the chassis. The second end regions of the side panels may be connected with the second waist region.

Abstract: A hip and ridge shingle having a plurality of sections that may be folded onto one another and secured in folded positions, the shingle being capable of being folded into a plurality of different configurations such as a bullnose configuration and a straight edge configuration.

Abstract: A slip-on corner protector for rectangular picture frames includes a flat cardboard pre-form which is bent into the shape of a hollow prism having right triangularly-shaped front and rear frame face cover panels joined at vertical and horizontal sides thereof by a vertical and horizontal rectangularly-shaped frame edge cover panel, respectively. Triangularly-shaped spring flaps bent inwardly from hypotenuse edges of the front and rear triangular panels are pressed against and thus grip a frame inserted between the front and rear triangular panels because of the elasticity of the cardboard pre-form. A machine and method for manufacturing corner protectors from a stack of pred-forms bends panels perpendicularly upwards from a pre-form by linear actuators, spays a hot melt adhesive blob onto an upright panel, and presses it against another upright panel to form an adhesive bond.

Abstract: A slide-room for installation in a recreational vehicle or other structure is disclosed. The slide-room comprises a shell, which can be constructed from fiberglass. The shell comprises an end wall, a ceiling, a floor, two opposing side walls, and a flange extending from the end wall, wherein the end wall, the ceiling, the floor, the side walls and the flange comprise a one-piece, unitary construction. Also disclosed are methods for molding composite components, such as slide-room. In one specific implementation, the shell for a slide-room is formed from fiberglass using a vacuum assisted resin transfer process.

Abstract: A method for manufacturing an instructional booklet that folds away from a substrate. A multi-up book is provide having two or more booklets and a waste zone that share a common spine. The waste zone is adhered to a substrate that is larger than the booklets. An overlaminate is applied to secure the multi-up book to the substrate. The area between the booklets and the substrate is devoid of adhesive. Subsequently, the waste zone is die cut and removed along with the overlaminate and substrate leaving completed labels with booklets. The substrate can be adhered to a container without interference from the booklet. The booklet is held closed against the label by the overlaminate which extends beyond the substrate and booklet to adhere directly to the container.

Abstract: A web conveying apparatus configured to convey a pair of webs folded in the cross direction CD with reference to a folding line. The web conveying apparatus includes a crotch hold bar configured to hold an intermediate web in a conveyable manner with the folded intermediate web stretched in a direction in which the crotch portions get away from the waistline portions; and a conveying mechanism configured to convey the intermediate web and hands over the intermediate web to a joint apparatus and a cutting apparatus, while the crotch portions are being held by the crotch hold bar.

Abstract: A method includes steps of: encapsulating at least a first passive radio frequency identification transponder assembly between two plies of flexible porous planar polymer material intimately bonded together around the assembly, each ply being microvoided substantially uniformly throughout, to form a multilayer planar core; and scoring the multilayer core to define at least a first multilayer, integral, individual planar radio frequency identification element including the first passive radio frequency identification transponder assembly separable from a remainder of the core. The encapsulating step may further include encapsulating a second passive radio frequency identification transponder assembly with the first between the plies.

Abstract: Method for manufacturing a binding file by using a binding element (1) includes providing a printed outer covering (8) and subsequently placing the flat element (1) on the covering (8) with the glue (6) facing down, and folding back the covering (8) at the edges (11) over the edges (7) of the element (1). The edges (11) are locally heated and cooled down to temporarily fix the covering (8), after which the whole is heated, pressed and cooled down again and to transform the strip (3) so as to form a U-shaped back.

Abstract: A method for applying a fold-under label to a substrate comprises the step of feeding to a folding apparatus the fold-under label having a first portion, a second portion extending from the first portion, and a third portion extending from the second portion. The method further comprises the step of causing a folding arm of the folding apparatus to collectively fold the first portion and the second portion behind the third portion by transitioning from a first position to a second position such that an adhesive on the third portion extends through a gap in the second portion. An affixing member of an application apparatus is caused to transition from an initial position to a final position to apply the folded fold-under label to the substrate.

Abstract: A drug-impregnated sleeve for encasing a medical implant is provided. In one embodiment, the sleeve may include a body made of a biologically-compatible material that defines an internal cavity configured to receive the medical implant. In one embodiment, the biologically-compatible material is bioresorbable. The body may include a plurality of apertures, such as perforations or holes, extending from the cavity through the body. The sleeve may further include a first end, a second end, and a drug impregnated into the resorbable sheet. In one possible embodiment, the first end of the sleeve may be open for receiving the medical implant therethrough and the second end may be closed. The implant may be encased in the sleeve and implanted into a patient from which the drug is dispensed in vivo over time to tissue surrounding the implantation site.

Abstract: The composite tube comprises a tubular arrangement of knitted fiber characterized by a plurality of interlocking loops. The tubular knitted pattern allows for variable electrical, mechanical and geometrical tube options. A matrix material is applied over the knitted fiber pattern and is allowed to cure. The matrix material may include a combination of resin and epoxy constituents. The matrix material may be applied by a vacuum bag molding process. The flexible knitted reinforcing layer allows use of an inflatable bladder to hold the reinforcing layer in the desired shape, thereby facilitating tube constructions of varying shapes and diameters. Continuous application of the matrix material avoids overlapping seams that are prone to delamination. Methods are provided for reinforcing the composite tube construction including one or more folded layers of knitted fiber, a reinforcing wrap made of knitted fiber, and an inflatable balloon element in combination with a layer(s) of knitted fiber.

Abstract: According to one aspect of the present disclosure, a method of applying a cold seal cohesive for product packaging is disclosed, the method including the steps of delivering a cold seal adhesive to a chambered doctor blade disposed adjacent a rotating transfer roller; transferring a quantity of adhesive to a transfer surface; rotating the transfer roller to contact a printing die mounted to a rotating die roller such that at least a first portion of the quantity of adhesive is transferred to the printing die; feeding a housing between the die roller and an adjacent rotating impression roller; rotating the die roller such that the printing die contacts the housing and transfers a portion of the quantity of adhesive from the printing die to the housing; and drying the adhesive on the housing, where the adhesive is a latex-based, dry-tack adhesive, with a viscosity of no more than 450 centipoise.

Abstract: A method for producing a three dimensional (3D) image formation object as a specific product using a thermally expandable sheet on which an intended 3D image is formed is described. The method sets first and second regions with a first processing line as a borderline on the first side, forms a first image for obtaining a 3D image in the first region, prints information on the second region, processes the 3D image formation sheet to fold the sheet along the first processing line, and adheres a third region which is on a second side of the 3D image formation sheet and corresponding to the second region and a fourth region which is on the second side of and corresponding to the fourth region to each other. This completes the 3D image formation object in which the first and second regions have a front/back relationship.

Abstract: The present invention relates to novel waterborne adhesives which are polymerisable by UV light and are capable of being activated by heat, and which particularly display good adhesion to difficult substrates, such as ethylene vinyl acetate copolymers (EVA) with a low vinyl acetate content, or rubber. The invention further provides a novel method in which, after the application of the waterborne adhesive to an article and drying, irradiation with UV light and at the same time or thereafter activation by heat are performed. The adhesive film which is irradiated and activated in this way is then bonded to a further article. The invention also provides the use of the adhesives to make items such as shoes.

Abstract: Apparatus and methods are provided to allow for creation of a configured laminate of a non-woven material, to which a character strip is applied, the character strip exposed by either heat severing and removal of overlying materials, or intermittent application of overlying materials to leave the desired portions of the character strip exposed. A simultaneously formed core insert is applied to a preformed chassis web.

Abstract: Recessed adhesive binding systems and methods of making same. One system can include a sheet having front and rear surfaces, and an adhesive on the rear surface. The sheet can include at least one opening and at least one folded section. The at least one folded section can include a first and second portion of the sheet separated by a fold. At least one of the first portion and the second portion of each folded section can include at least one opening, such that when the rear surfaces of the first and second portion are adhered together, the adhesive is exposed across the at least one opening and recessed from the front surface of the sheet, forming at least one recessed adhesive zone. One method can include forming at least one opening through the sheet, and folding the sheet to form at least one folded section.

Abstract: Systems are provided for fabricating a plurality of possible pleat packs used in the formation of circumferentially pleated filter sleeves comprising a substantially horizontal contact surface, a pleating machine having cutting structure, operatively positioned proximate the substantially horizontal contact plane, for delivering continuous upstanding pleat packs of a predetermined pleat formation to the horizontal contact surface, structure for guiding the upstanding pleat packs received from the pleating machine into a flattened condition, structure for securing the pleat packs in the flattened condition and structure for forming the flattened pleat packs into a predetermined length for subsequent formation into sleeves of circumferential pleats. Methods for fabricating a plurality of possible pleat packs used in the formation of circumferentially pleated filter sleeves are also provided.

Abstract: In one embodiment, a light emitting device comprises an array of legs extending from a body of film with the bounding edges of the legs stacked, a first light source emitting light of a first color and a second light source emitting light of a second color into the stacked bounding edges where the light emitting region defined within the body is configured to extract light of a third color. In another embodiment, a light emitting device comprises three light sources positioned to direct light into a stacked array of bounding edges. In one embodiment, a method of generating light of adjustable color exiting a surface of a film is disclosed.

Abstract: Flexible indicia bearing labels are placed on armored electrical cable at spaced apart intervals while the cable is being moving continuously from an armoring station to a takeup reel or accumulator. A label dispenser places labels in a U shaped recess of a body which is moveable toward engagement with the cable. Opposed rollers fold one edge of the label over into engagement with the surface of the cable and the other edge of the label over onto itself in overlapping relationship. The cable is passed through a heat tunnel to shrink the labels into tight engagement with the cable. A controller monitors movement of the cable and controls actuators for applying and folding labels onto the cable at spaced apart intervals.

Abstract: A self-adhesive label for application to an object as a hang tab, without the need for a separate application device. The label includes a printable surface, a fold line dividing the label into two portions, and two matching hanger opening shapes, one on each of the two label portions. The matching hanger openings are reversely positioned with respect to each other to provide corresponding alignment upon folding the label about the object to align the matching hanger opening shapes to form a hanger opening. The label is particularly suited for use with retail product packaging used in hanging retail displays.

Abstract: An apparatus and method of use of a foldable watercraft and method of construction. The device comprises a collapsible boat hull constructed from a lightweight, low maintenance, and inexpensive material. The boat hull is frameless, folded and unfolded quickly, and is easy to transport and store.

Abstract: A fabric tube with two passages comprises a fabric tube sheet. A first fabric weld strip with right and left flanges extending laterally from a bottom edge of a weld fin is welded to a first surface extending the length of the fabric tube sheet at a distance D1 from the first edge thereof. A second fabric weld strip is welded to an opposite second surface and extends the length of the fabric tube sheet between the first fabric weld strip and the second edge of the fabric tube sheet at a distance D2 from the second edge of the fabric tube sheet. The first edge of the fabric tube sheet is welded to the weld fin of the second fabric weld strip and the second edge of the fabric tube sheet is welded to the weld fin of the first fabric weld strip to form two passages.

Abstract: A method and apparatus for a tray, a folding section connected to the tray, and a tape application system. The tray has a channel for receiving an elongate insert for a composite material with a number of layers for a release system. The folding section is capable of folding a number of layers around the elongate insert to cover the elongate insert as the elongate insert is moved through the folding unit. The tape application system is capable of applying a tape to the number of layers for covering the elongate insert to form the release system.

Abstract: In a disposable diaper in a developed state where a front cover sheet and a rear cover sheet are separated from each other to be developed, as distance in a left-right direction from an absorbent body increases, a lower edge of the rear cover sheet goes away from an upper edge of the rear cover sheet and then goes toward the upper edge. A leg elastic member is bonded on the rear cover sheet along its lower edge, in left and right of the absorbent body. As above, the lower end portion of the rear cover sheet is convex downward in each of left and right of the absorbent body, and lower portions of hips of a wearer are wrapped with the lower end portions. It is therefore possible to suppress leakage of excrement from the lower portions of hips of the wearer.

Abstract: Continuous edge folds of a top sheet in disposable products prepare the top sheet for placement/attachment of discrete side panels to the folded-over portion of top-sheets oriented so that the side panels lay on top of the top-sheet without any further folding steps required. Later, a back sheet can be added and back sheet edges then folded over to cover edges of top-sheet/side panel sandwich.

Abstract: Systems and methods for manufacturing a golf ball are disclosed. In some embodiments, a thermoplastic film may be manipulated causing the molecules in the film to become biaxially oriented. In some embodiments, a robotic arm may manipulate the thermoplastic film. In some embodiments, a robotic arm may manipulate the golf ball core in order to dispose the thermoplastic film around the golf ball core. In some embodiments, a robotic arm may position the golf ball components in a mold. In some embodiments, a robotic arm may remove the golf ball components from a mold. In some embodiments, the mold may be associated with a conveyer belt.

Abstract: In a method for manufacturing wet wipes, ridge regions raised along the conveyance direction are formed in sheets by causing each of the sheets to pass through between upper folding plates and a lower folding plate and folding the sheet multiple times on itself; each of the sheets having the ridge regions formed therein is impregnated with a predetermined chemical solution; and each of the sheets having been impregnated with the predetermined chemical solution is stacked on each other. After passing through between the upper folding plates and the lower folding plate, each of the sheets makes contact at a surface thereof with a conveyance roller, the surface being located opposite an extended plane across the surface having the ridge region formed therein, the extended plane being a plane obtained by extending the surface of the lower folding plate.