Abstract: The invention relates to a method and to a device for producing booklets, each of which comprises a cover (A) that has two cover sides, a spine between the cover sides, a glue string applied to the inner surface of the spine, and a sheet bundle inserted between the two cover sides. A plurality of covers each having an applied glue string are placed in the immediate vicinity of each other, in a readiness position. The sheet bundle (B) is then combined with one of the covers (A), so as to enclose the sheet bundle in the cover with one side edge of the bundle facing towards the glue string. The glue string is then actuated in an actuator (8), so as to bind this side edge of the bundle (B) to the inner surface of the spine. According to the invention, the sheet bundle (B) is combined with the cover (A) by moving the sheets of the bundle one by one, or as a complete bundle, to the cover in its readiness position by means of a powered transporter.

Abstract: The present invention provides a method and system for producing books on-demand. An electronic bookstore in accordance with the subject invention can receive an electronic text file of a book and then print and bind a copy of the book. A user may browse an electronic catalog, for example over the Internet, and place an order for a book which can be picked up at a conveniently located electronic bookstore shortly after placing the order. The subject invention reduces costs and waste associated with conventional production and distribution of print matter. Advantageously, the subject invention allows books with smaller audiences to be published at a reasonable price. An electronic bookstore in accordance with the subject invention can have access to literally millions of books and can print and bind any selected book in a few minutes.

Abstract: Method for manufacturing a booklet, such as for instance an ID, which booklet is provided with a number of sheets of paper and a cover material, each sheet having a front and a reverse side, each side comprising two pages, which method comprises connecting the sheets of paper to each other along a line between the pages, attaching the cover material to the outside of the booklet, and making a fold in the sheets of paper to form a back of the booklet, and bringing the booklet to the correct size, characterized in that the method further comprises attaching a band, which can be attached in the booklet in the same manner as in which the paper sheets are attached to each other, and mechanically attaching a plate to the band, the plate being at least partially made of synthetic material, and having a front and a reverse side, each side comprising one page. Booklet, manufactured according to a method according to the invention.

Abstract: Reactive hot melt polyurethane adhesives are useful in the graphic arts area, and in particular, for bookbinding applications such as casemaking, casing-in, gluing-off or thread-securing, facing, slip cases, lining-up, tightbacking, and bonding sides and joints; and for puzzle and gameboard lamination.

Abstract: The present invention relates to a method, a device for assembling and producing of booklets. Each booklet having a cover that comprises two cover sheets and a spine disposed inbetween. A glue string is applied to the inner surface of the spine, and a sheet bundle inserted between the cover sheets of said cover and affixed at one end side edge to the inner surface of the spine by means of the glue string.

Abstract: A binder/trimmer is disclosed in which a book block is placed in a carriage, jogged to align the pages, and then transported to a milling station in which the spine of the book block is milled to roughen the spine, then to an adhesive application station at which a suitable adhesive is applied to the spine, and thence to a binding station at which the spine of the book is brought into engagement with the center portion of a cover and at which a binding clamp forces the cover against the outer faces of the book block proximate the spine, and then to a trimming station. At the trimming station, the book is deposited in a nest and is positioned relative to a trimming blade which is actuated to trim a first edge of the book to a predetermined dimension. The book is then rotated to trim second and third edges thus resulting in a perfect bound book accurately trimmed to a predetermined size. A method of binding and trimming a perfect bound book is also disclosed.

Abstract: A method and an apparatus for producing folders of the kind comprising two cover sheets, a spine, which is connected with the cover sheets by means of creasing lines, and a binding agent, which is applied to the inside of the spine and which is activable to connect sheets inserted between the cover sheets to the spine. The binding agent is applied to the spine and to the cover sheets while the cover sheets are essentially parallel to each other and perpendicular to the spine.

Abstract: An apparatus and method for affixing book pages to a book cover is disclosed having a sheet of paper with at least one waxy side and two stickers, each having a first side, the first side being sticky and removably affixed to the waxy side of the sheet of paper. In the preferred embodiment, the two stickers are separated by a distance to accommodate the thickness of pages of a book. The apparatus also has a means for easy removal of the stickers from said sheet and is preferably done by having the sheet of paper extending beyond each of the stickers to allow for easy separation of the stickers from the sheet of paper. The stickers may be attached to the book pages by a variety of means such as staples, channel binding, or otherwise.

Abstract: A bookbinding system and method of binding books including a cover/spine assembly having a relatively rigid cover section with a length and width at least as great as that of the stack of sheets to be bound and a spine section having a width greater than the height of the stack. The cover/spine assembly and the spine section are secured together along the length of the cover section so that the spine section can be folded along a first edge with respect to the cover/spine assembly. A heat activated matrix is disposed on the spine section including a central adhesive band and an outer band disposed between the central adhesive band and a second edge of the spine section. Binding is carried out by placing the stack over the cover section and folding the spine section over the edge of the stack. Preferably a second relatively rigid cover section is placed on top of the stack so that the outer adhesive band on the spine section will extend over second cover section.

Abstract: An album for containing items such as photographs or collectible cards, and its fabrication process, combining the advantages of a cover of one thermoplastic material with the different advantages of leaves of another thermoplastic material weld-incompatible with the cover material, using thermoplastic welding for securing the leaves to the cover. In its preferred embodiment, the album comprises a cover having vinyl inner and outer cover sheets secured to one another in superposed relation with a polypropylene sheet captured therebetween and extending along the cover's spine, and a plurality of polypropylene leaves thermally welded to the captured polypropylene sheet along the cover's spine and through the inner cover.

Abstract: A machine for attaching a book cover to endsheets within an adhesive is set forth. The adhesive is applied while it is within a predetermined temperature range. The machine includes a housing, an application roller journalled within the housing, and a metering roller journalled within the housing. The metering roll is axially parallel to the application roller and nearly contacts the application roller at a nip. The region above the nip defined by the application and metering rollers, and two internal seals with the housing is an adhesive reservoir. The adhesive remains in this reservoir before it is applied by the application roller. The machine also includes a level detector which detects the level of the adhesive in the adhesive reservoir. The level detector is coupled to a controller and produces a low level signal when the level of the adhesive is below a predetermined level threshold.

Abstract: In order to provide a bookmark for a book, a method of making a book includes the step of applying a releasing adhesive to an inner surface of a front or rear cover having an initially greater width. The outer portion of this cover is then folded inwardly along a fold line so as to be in generally confronting relation with the inner surface of that cover to cause the width after folding to generally correspond to the width of the other cover. The outer portion of that cover is folded along the fold line so as to place the releasing adhesive in adhesive contact with confronting surfaces of both the folded outer portion and the remainder of that cover to adhesively secure them together after they have been folded into confronting relation.

Abstract: Disclosed are photo album pages made by adhering two sheets of transparent plastic to a piece of paper with adhesive material to all attachment lines running horizontally. A plurality of compartments are created for the storage of photographs. The newly designed photo album pages provide a space for memo writing and allow consumers to insert photographs from the side farthest from the spine and use the memo writing paper to act as a stopper. This orientation provides convenience to consumers and saves material for the manufacturer. Also included is the method and apparatus for fabricating such pages.

Abstract: A simplified desktop book binder method and apparatus wherein the sheets to be bound are accurately aligned by the binder tape itself. In particular, the conventional binder tape is formed into an L-shape. Alignment is achieved since the inside corner of the L and the edge of the bundle of sheets of paper are in contact. The tape is dropped into a correspondingly shaped slot in the binder apparatus and the paper bundle is placed on top of the tape, the edge of the bundle being automatically aligned against the corner of the tape. The free end of the long leg is wrapped tightly around the paper bundle. In an alternative arrangement, a form is substituted for the bundle of paper, the form being covered with Teflon tape. Since the glue will not adhere to the Teflon, the form may be removed after binding leaving the covers and binding tape with glue inside the spine, thus allowing the user to make folders as desired.

Abstract: A microwave binder is used in conjunction with paper tape which is coated with one or more formulations of encapsulated, fast setting, water soluble adhesives to bind pages of a book. The tape spine adhesive is of sufficient thickness to allow it to penetrate into the edges of the pages of the bound edge. The microwave heating causes the capsules to rupture, releasing the adhesives to flow into the bound edge of the book.

Abstract: A method of fusing two or more pieces along an edge to produce a bound volume uses an activating agent which dissolves and mixes with a component present on the pieces, and thereby causes the edges of the various pieces to fuse together. The method is particularly useful for producing bound periodicals and magazines.

Abstract: A printer having a platen for supporting a binder strip to be printed, a ribbon positioned adjacent the platen and print head mechanism having print pins, driver coils associated with each print pin and a heating element for heating the print pins. A driver applies energy to the coils such that a drive force is applied to the print pins up to the time the pins force the ribbon against the binder strip and for a fixed time thereafter. The driver is controlled by a print head controller so as to carry out printing on the binder strip.

Abstract: In a process for the manufacture of a book, wherein an adhesive is applied to the side faces of an inner book, the inner book is subsequently cased into a book cover and the book cover folds are shaped by the application of heat and pressure, adhesive is additionally applied to the book cover in the regions which are to be formed into the folds before the joining together of the cover and inner book and, optionally, the fold regions of the book cover and/or inner book are heated before the application of adhesive.

Abstract: The present invention provides a method and system for producing books on-demand. An electronic bookstore in accordance with the subject invention can receive an electronic text file of a book and then print and bind a copy of the book. A user may browse an electronic catalog, for example over the Internet, and place an order for a book which can be picked up at a conveniently located electronic bookstore shortly after placing the order. The subject invention reduces costs and waste associated with conventional production and distribution of print matter. Advantageously, the subject invention allows books with smaller audiences to be published at a reasonable price. An electronic bookstore in accordance with the subject invention can have access to literally millions of books and can print and bind any selected book in a few minutes.

Abstract: An apparatus for the thermal binding of sheets includes at least one support (5-5a-5B) for a binding element (3). The binding element has a binding back on which an amount of glue (4), which melts under the influence of heat, is provided. A heating element (6) co-operating with the support (5-5A-5B) or forming part thereof, a detection device (7) to detect the presence of the binding element (3) in the apparatus (1) and a control/switching device (8), which is connected to the detection device (7) and is connected to the heating element (6) in order to switch it on and/or off, are also included. The detection device (7) is applied underneath the support (5-5A-5B).

Abstract: A book binding method includes binding a plurality of flatly superimposed leaves by a line of stitches of thread using a stitching machine, and folding the superimposed leaves in two along the line of stitches of thread to form a book. The stitches of thread of the superimposed leaves are impregnated with an anaerobic ultraviolet hardening type adhesive agent. A book binding apparatus is also disclosed.

Abstract: An adhesive film which reliably completely covers the spine side of a book block, prior to mating with a cover, is applied by an applicator roller which is controlled to rotate at speeds which are a function of the book block linear velocity and the location of the book block relative to the roller. The applicator rotational speed is determined from stored information and, depending on book block location, will either be greater or less than book block velocity.

Abstract: A polarized lens is mounted to a helmet having a transparent face shield to cover a top portion of the face shield and reduce glare in the user's field of vision. In the preferred embodiment of the invention, the polarized lens does not cover the lower portion of the transparent face shield so that the user's primary field of vision can be adjusted to pass through the uncovered lower portion of the transparent face shield when the user tilts their head back slightly. The lens is preferably attached to the helmet using hook and loop fastener. On a sunny day, a helmet wearer, e.g. a snowmobiler or a motorcycle rider, can attach the polarized lens to reduce glare, and can tilt their head back slightly if the sunlight disappears temporarily (e.g. when the vehicle passes into the woods). In addition, the user can easily remove the polarized lens if the sunlight disappears for an extended time.

Abstract: According to the inventive method for joining product parts by means of a glued spine, the juxtaposed edges of the stacked product parts which form the spine area (2) of the product in process are pre-treated with a tearing tool (4) e.g. with a rotating brush. The method is especially advantageous for joining multi-layer product parts with multi-layer folded edges to be joined, whereby the folded edges are torn up by the tearing tool (4) to a depth at least reaching the innermost layer. The inventive method is also applicable in the sense of stitching, for joining the individual layers of one single product part with one multi-layer folded edge.

Abstract: A method and apparatus for monitoring the application of glue onto the back of a book block processed in a book binding machine and bound by gluing, wherein the thickness of glue application is measured. At least the glue layer applied to the book block back travels partially through at least one measuring range formed by a ray bundle and directed transversely of the travel path of the book blocks. The apparatus includes a transmitter and corresponding receiver which together operate as a measurement transducer. The transducer forms a measuring range extending transversely of the travel path of a book block. The transmitter and receiver are arranged in the book binding machine and the book blocks are moved past the measuring range in such a way that at least the glue layer applied to the book block back partially extends into the measuring range.

Abstract: A plurality of sheet material feeders (9) are arranged along a continuous path (4), and supply sheet material articles (17) to sheet material assemblers (12). A plurality of sheet material assemblers (12) are moved sequentially along said continuous path (4) and receive sheet material articles (17) at the sheet material feeders (9). The sheet material assemblers (12) have an upper section (12.1) for gathering sheet material articles (17) constituting an assemblage (46) and a lower section (12.2) for receiving the gathered sheet material assemblage (46) from said upper section (12.1). Binding operations on said assemblages are performed when the assemblage is in the lower section (12.2).

Abstract: A method and an arrangement are provided for checking completeness of a book block intended for an adhesive binding, wherein an adhesive binding machine includes a conveyor defining a conveying path along which the book block is conveyed. A plurality of processing stations are arranged along the conveyor for processing the book block. A measuring device is disposed along the conveyor and is adapted to check completeness of the book block by measuring the thickness of the book block. The measuring device includes measuring elements arranged opposite each other on both sides of the conveying path. The measuring elements are separated by a distance to define a measuring segment and arranged for exerting a defined contact pressure onto the flanks of the spine of the book block.

Abstract: The invention relates to hot-melt adhesives characterized in that they include: a) 30 to 90% by weight (A) of at least one essentially amorphous poly-alpha-olefin and (B) of at least one ethylene/alkyl (meth)acrylate copolymer, the weight ratio (B)/(A)+(B) being between 0.05 and 0.55; b) 10 to 70% by weight of a tackifying resin; c) 0.1 to 3 parts by weight of an antioxidant for 100 parts by weight of the compounds under a) and b). It also relates to the use of these adhesives in the wood, bookbinding and packaging industries.

Abstract: The disclosure relates to an apparatus and method of bookbinding in which the clamp for the book block is braced at least while it is stationed at a cover applicator, whereby to permit the applicator to apply high forces to the book when positioning the cover. This in turn permits the use of pressure-unstable adhesives, such as adhesive emulsions, and leads to semi-finished books that are handleable and can be subjected to further processing immediately after formation.

Abstract: In the manufacture of a book, the book consisting of a cover and an inner book, the book cover is permanently shaped by the formation of folds in the articulation region thereof prior to being joined to the inner book. In the course of forming the folds in the cover, the covering material thereof is caused to undergo plastic flow and to be shaped so that beneficial stresses are created in the fold defining regions. The back of the cover may also be permanently shaped substantially simultaneously with the formation of the folds.

Abstract: A bind tape abutted against a bound edge of a sheet bundle for book-binding the sheet bundle includes a tape substrate and an adhesive layer coated on one surface of the tape substrate to bond the sheet bundle. The bind tape is provided at both longitudinal end portions thereof with areas on which the adhesive layer is not coated.

Abstract: A simplified desktop book binder method and apparatus wherein the sheets to be bound are accurately aligned by the binder tape itself. In particular, the conventional binder tape is formed into an L-shape. Alignment is achieved since the inside corner of the L and the edge of the bundle of sheets of paper are in contact. The tape is dropped into a correspondingly shaped slot in the binder apparatus and the paper bundle is placed on top of the tape, the edge of the bundle being automatically aligned against the corner of the tape. The free end of the long leg is wrapped tightly around the paper bundle. In an alternative arrangement, a form is substituted for the bundle of paper, the form being covered with non-stick tape. Since the glue will not adhere to the tape, the form may be removed after binding leaving the covers and binding tape with glue inside the spine, thus allowing the user to make folders as desired.

Abstract: Method for producing a book binding that is comprised of at least one book binding sheet, having at least one book binding cover that is connected to a binding spine, in which a strip of molten adhesive is applied on the inner side of the binding sheet at the point that is to form the spine. Before it is applied, the molten adhesive is heated so that the adhesive is in a plastic state. In order to ensure that the molten adhesive is applied securely in the desired shape and with little cost, the molten adhesive (10, 41) is reshaped after being at least partially applied to the binding sheet (11, 40).

Abstract: A cover-less binder assembly system for binding together a series of sheet materials, such as, for example, paper for business reports and the like by an office worker, with the binding typically being done along one edge using a simple, cover-less and guide-less spine (10). A separate, temporary guide (20) is temporarily provided for initially guiding the sheet material or papers into the binding spine or member to be adhered thereto, after which the combination of the spine (with the edge-inserted sheet materials) and the temporary guide are placed in a heating unit for binding the sheet materials to the spine with hot melt glue. Thereafter the bound materials are removed from the separate guide, which can thereafter be re-used in connection with other materials to be bound and a different spine. A preferred guide member includes two diverging side panels (22) forming a "V" shape leading into a trapezoidal-shaped bottom in which the spine is positioned but otherwise unattached or connected.

Abstract: For the connection of the sheets of a multi-sheet printed product (14), such as magazines, brochures and the like, the sheets are adhesively connected together point-wise by the introduction of an adhesive into perforations formed in them. During this, the adhesive applied to the outer side of the penetration and drilling needles (20) is transferred onto the sheets over the whole length of the perforations simultaneously with the formation of the perforations by means of these needles (20) and/or on retraction of the needles (20).

Abstract: Self binding system for home use that utilizes a spring binding to clamp pages into a bound book. A retaining piece is used to hold the spring binding open until the pages are in place. Once the retaining piece is removed the spring binding clamps the pages in the book cover.

Abstract: A perfect binding apparatus having a plurality of pockets, each of which releasably engage a book to be bound. The pockets are sequentially passed over a glue pot by means of a conveyor chain coupled to each pocket. A hot melt adhesive is applied to the bottom edge of each book as it passes over the glue pot. Gravity, along with the liquidity of the glue, causes a portion of the adhesive to fall away from the book as the pocket transports the book downstream from the glue pot, thereby forming undesirable adhesive stringers. A plurality of heaters are positioned downstream from the glue pot and mounted at an elevation at which the bottom edge of the book just clears the top edge of the heater as the book passes over the heater. The heaters are kept at a temperature which is in excess of the melting point of the adhesive, therefore the stringers are continuously melted and removed from the books as they pass over the heaters.

Abstract: A stack of unbonded perforated book signatures receives cold pva adhesive applied to the spine and hot eva adhesive is promptly applied in not more than approximately ten minutes prior to setting of the cold adhesive to permit the fabrication of a book of greatly enhanced durability.

Abstract: The multi-sheet, folded printed product arranged on the supporting member is penetrated by a penetration tool, from the direction of a supporting member. A pressure-exerting element acts on the printed product with a lateral compressive force. This results in a widening of the through-passage produced through the printed product. Upon withdrawal into the rest position of the penetration tool, adhesive present on the surface of the penetration tool is transferred onto the sheets in the through-passage. Once the lateral compressive force has been eliminated, the through-passage closes, which results in good distribution of the adhesive and reliable adhesive bonding.

Abstract: A finishing machine is proposed for printed sheets delivered individually in rapid succession by a reproduction machine such as a printing press or a copier. The machine renders possible the manufacture in a production line in a completely automatic manner of brochures, leaflets or booklets without trimming edges. The machine comprises as its main part a station for takeover of the delivered sheets; a device for controlled retardation of the sheets received from the take-over station; a station for horizontal stacking of the retarded stacks; means for the alignment of the stacked sheets; a device for gripping the stack of aligned sheets a device for pivoting of the gripped stack from a horizontal position to an on-edge position; and a device for encasing the stack in a cover.

Abstract: A method for assembling hard cover books with a tape bound cover includes the steps of: providing front and rear hard covers; placing a book block between the front and rear covers; adhering a flexible spine member having an adhesive on one surface thereof to the front and rear hard covers and spine portion of the book block; and adhering an inner leaf sheet to inside surfaces of the front and rear hard covers and outside surfaces of the book block, thereby completing a bound hard cover book.

Abstract: A method and apparatus are provided for manufacturing booklets. Each booklet is made of a cover having two cover sheets and a spine, a bead of glue attached to the inside of the spine, and a sheaf of papers inserted between the cover sheets and attached to the spine by the bead of glue. The apparatus and method include moving the sheaf of papers to a first position by a first transporter, moving one of several covers stored in a cassette to a second position by a second transporter, and moving the sheaf of papers and cover into contact so that the sheaf of papers is enclosed by the covers and a side edge of the sheaf contacts the bead of glue. The assembled booklet moves past a device for activating the bead of glue. A method is provided for filling the cassette, which stores and dispenses the covers, and a method and apparatus are provided for jogging up the sheaf of papers.

Abstract: A method and an apparatus for indicating suitable binding times for a file or files placed in a file binding apparatus. The suitable binding time is comprised of the time (t.sub.0 -t.sub.2 ; t.sub.3 -t.sub.5 ; t.sub.6 -t.sub.8) required to heat the heating plate of the binding apparatus to a predetermined maximum temperature governed by the switch-off temperature (T2) of a thermostat, and the time taken for the heating plate to cool to a similarly predetermined switch-on temperature (T1) of the thermostat, determined by a lower temperature. The suitable binding time is determined by utilizing the switch-off and switch-on temperatures of the thermostat, wherein the thermostat output signal controls an indicating device which indicates the aforesaid suitable binding time.

Abstract: There is provided, within a printing system, a system for binding a set of individually folded N-up prints. The binding system includes a folding device for folding each of the N-up prints, one at a time, such that each individually folded N-up print includes a folded edge. The binding system further includes a stacker for receiving the set of individually folded N-up prints when delivered thereto and a binding device for applying an adhesive layer to the stacked set of individually folded N-up prints. The adhesive layer contacts each of the folded edges of the individually folded N-up prints so as to provide a secure binding relationship between each of the individually folded N-up prints. During the printing and binding mode, if a different type of substrate is detected in the substrate tray other than the type selected, operation of the binding system is inhibited.

Abstract: A method of binding a pack of signatures, at least some of said signatures including a plurality of interleaved sheets and each of said signatures having a closed side, comprises the following steps. The pack of signatures is clamped with the closed sides of the signatures lowermost and coplanar with one another along a spine of the pack. The closed lowermost sides of the signatures are sawed to expose the interleaved sheets of the signatures. The sawed lowermost sides of the signatures are slashed with a multiplicity of cuts lateral to the lengths of the sawed lowermost sides. A preparatory adhesive is applied to the sawed lowermost sides of the signatures to create an initial bond of the interleaved sheets of the signatures. The preparatory adhesive is cured until it is substantially free of surface moisture. After applying and curing the preparatory adhesive, a notcher forms a multiplicity of closely spaced, wide open notches in the lowermost sides of the signatures.

Abstract: A book binding process and apparatus are shown wherein polyurethane adhesive (PUR) attaches a crepe portion of a book binding to a book block and hot glue attaches the crepe portion to the book cover. The PUR delivery system includes an inclined trough positioned adjacent a polyurethane adhesive delivery roll. A polyurethane adhesive source delivers polyurethane adhesive upon the inclined surface of the trough and the polyurethane adhesive is metered onto the roller as a function of the separation of the leading edge of the trough and the roller.

Abstract: An adhesive binding strip for binding pages in the form of a book. The adhesive binding strip includes an elongated substrate made of a formable material. A band of heat-activated adhesive runs down the central portion of the substrate. A matrix of heat-activated adhesive is placed on the substrate around all edges of the adhesive band. The adhesive band, which has a low viscosity under activation conditions, binds the pages of a book to each other and to the substrate. The adhesive matrix, which has a high viscosity under activation conditions, serves to bind the entire substrate to the book, while preventing the adhesive band from running out from under the substrate during the binding process. The adhesive matrix also increases overall strength of the binding, especially with respect to the front and back cover pages of the book.

Abstract: A customized insert sheet is laminated by heat and pressure between a plastic cover sheet and a major portion of a folder sheet. A heat activatable adhesive strip may thereafter be applied to an adhesive strip receiving channel adjacent a side edge of the plastic cover sheet, and edge portions of a stack of sheets may then be affixed to the adhesive strip receiving channel by heating the adhesive strip. The cover sheet is affixed to a side edge portion of the folder sheet to reduce wrinkling of the cover sheet upon lamination.

Abstract: A method of binding book blocks to form books is disclosed. The method involves applying an aqueous composition to the spine area of a book block and removing the volatile components of the composition. The composition comprises (1) an aqueous vehicle, a film-forming polymeric resin, and a polyurethane resin or (2) an aqueous polyurethane dispersion or emulsion. The composition may also include an alkaline component. In another embodiment, the composition comprises a mixture of an aqueous, film-forming polymeric latex, an alkaline component to adjust the pH the latex to that of an aqueous polyurethane dispersion, and the aqueous polyurethane dispersion.

Abstract: Apparatus and methods for producing intermittent, discrete patterns of coating material, such as hot melt adhesive, onto discrete substrates or substrate areas, such as book spines, sift-proof carton flaps and pinch-bottom bags. The adhesive patterns have sharp, square leading and trailing edges, as well as side edges. A slot nozzle die has elongated air slots along the slot extrusion opening. In the operation of the apparatus, the air flow is initiated from both air slots prior to the initiation of the hot melt flow. Also, the air flow is continued beyond that point in time, when the hot melt flow ceases. The delays between the operations of the air flow and the hot melt flow are on the order of micro seconds. Coating weights down to 1 gram per square meter at about 350 meters per minute substrate speed are provided.