Abstract: A cigarette carton structure having a releasable adhesive seal to permit reopening of a temporarily sealed carton without damage to the carton. The seal includes a release coating on one of two carton surfaces to be adhesively joined. One of the surfaces may be a top flap and the other surface may be a closure flap. An adhesive is placed on the release coating, and the two surfaces are joined. The release coating may be a weakly cohesive material such as a metallic ink printed on the carton surface so that when the surfaces are separated, the release coating separates without damaging the carton. Alternatively the release surface can be a layer of material that adheres poorly to the adhesive, so that the adhesive readily separates from the release layer. In either case the initial temporary bonding must be sufficiently strong to allow handling, packing and unpacking of the cartons without premature opening.

Abstract: Method and apparatus are provided for forming an envelope wherein front and rear panels of an envelope are incorporated in continuous or discrete webs or sheets. Heat activatable adhesive is applied to three peripheral edge portions of one of the envelope panels in facing engagement with the other of the panels. The webs or sheets are fixed together and fed into a printing machine such as a table or desk top laser printer wherein the heat fusing rolls of the printer are utilized to activate the heat activatable adhesive to thereby secure the envelope panels together to form an envelope pocket. One of the envelope panels incorporates a sealing flap portion which may be provided with a rewettable adhesive pattern, while the facing portion of the opposed sheet may be provided with an antistick composition to prevent premature sticking between the sheets in the area of the sealing flap.

Abstract: A closure system which reseals an opened bag. The closure system includes a pressure sensitive adhesive on the front side and a defined release surface on the back side of the bag. The top portion of the bag is folded so that the defined release surface comes into contact with the adhesive thereby resealing the opened bag.

Abstract: A tear-strip opening envelope apparatus is provided with a tear-strip opening feature for facilitated closing, sealing, opening and emptying thereof. A tear-strip is located on each of two panels enclosing the sides of the envelope, with each of the tear-strips attachably overlying the other in close alignment, upon sealing of the envelope. The attached aligned tear-strips create a single multi-ply tear-strip assembly which facilitates the opening and emptying of the envelope. Opening of the tear-strip opening envelope apparatus is accomplished by pulling the reinforced multi-ply tear-strip member, at an end thereof, across the tear-strip opening envelope.

Abstract: A foldable envelope blank provides an envelope structure having a closure flap presealed with a temporary bond including microencapsulated fragrance dispersed within an adhesive matrix. The adhesive material is disposed on a coplanar surface on the envelope blank at discrete areas adapted for registered alignment during the fabrication procedure. The opening of the closure flap is effective for rupturing the microcapsules and releasing fragrance.

Abstract: An envelope assembly has rectangular form and cross-sectional thickness consistency for utilization with a sheet-feed printing apparatus. The assembly includes a first sheet having a centrally located transverse perforated tear line, and a second composite sheet having sections forming pockets, and strips forming sealing flaps toward the central tear line, so that the assembly has substantially the same thickness throughout. Thus, printing apparatus systems that have capabilities only for feed bin, paper tray or paper cassette feeding methods and are incapable of handling single business-size envelopes can be utilized for envelope printing with the present invention.

Abstract: A selectively temporarily and/or permanently sealable envelope or the like having a flap provided with a layer of wettable dry adhesive, a tab extending from the flap and having a layer of pressure sensitive adhesive, and means for selectively masking off, concealing and protecting the layer of pressure sensitive adhesive whereby the closure flap is selectively releasably securable to the container body by the pressure sensitive adhesive and is permanently securable to the container body by the wettable adhesive.

Abstract: An envelope with a pressure sensitive seal containing a hidden printed message which is revealed when the seal has been opened. The unsealed edges of the envelope each have an anchor coating, and the message is formed by voids in the anchor coating on one edge. Cohesive layers adhere to the anchor coatings on both edges, and seal the envelope as desired. The cohesive layers have a stronger affinity for each other than for the anchor coating with the void regions, and so the message is revealed as the cohesive layer separates from the void-containing anchor coating when the sealed envelope is opened.

Abstract: An envelope with a pressure sensitive seal containing a hidden printed message which is revealed when the seal has been opened. The unsealed edges of the envelope each have an anchor coating covered by a cohesive layer. The message is formed by voids in the cohesive layer on one edge. Cohesive layers adhere to the anchor coatings on both edges, and seal the envelope as desired. The cohesive layers have a stronger affinity for each other than for the anchor coating. The message is revealed as the cohesive layer containing voids separates from the anchor coating causing the disruption of the anchor coating, when the sealed envelope is opened.

Abstract: A container of synthetic plastics film material is provided with a re-sealable closure in the form of a re-usable adhesive tape which bridges an opening so as to form an airtight closure. The container is opened by peeling the tape from a surface with which the tape is in contact and the container is re-closed by reapplying the tape to the surface.

Abstract: A resealable envelope is provided which has a simple and inexpensive construction. This envelope includes two paper panels disposed in face-to-face relation with one panel having an extending portion to provide a sealing flap. A first plastic strip fixedly secured to the inner face of the flap, a second plastic strip fixedly secured to the outer surface of the panel which the flap engages to close the envelope, and a pressure sensitive contact adhesive applied by a removable tape to one of the plastic strips provide a seal for the envelope.

Abstract: A multilayer film food wrap having outer layers of a polyolefin resin including a cling agent, and a core layer of a resin having a high melting point, resistance to heat, low permeability to oxygen, moisture and odor, and film toughness. Methods of preparing the film and fabricating the film into a bag are also disclosed.

Abstract: The envelope is especially designed to bulky contents such as bank statements with cancelled checks and the like. The back panel of the envelope is provided with a rupturable cut score line which is parallel to the bottom edge of the envelope and which is overlain by the closure flap of the envelope when the latter is closed. An initiating tab projects below the lower edge of the closure flap. The lower edge of the closure flap is parallel to the bottom edge of the envelope, and the closure flap is secured to the back panel of the envelope by a latex adhesive which is adherent without being moistened. Adhesive spots are provided on the inner surface of the envelope to releasably secure the contents in place in the envelope.

Abstract: A disposable, self-sealing pouch is disclosed which is readily adaptable for use for sterilization, sterility maintenance, disposal of contaminated items, and like medical applications. The pouch includes first and second coextensive pouch webs which are marginally joined together to define the interior of the pouch. The first pouch web defines a transversely extending access opening slit through which articles may be inserted into the pouch. In order to effect closing and sealing of the access opening slit, the pouch includes adhesive means provided on the first pouch web on opposite sides of the access opening slit. By this construction, the pouch may be easily and securely sealed by folding the pouch onto itself so that the adhesive means is brought into confronting relation with itself, thus forming an adhesive-to-adhesive of the access opening slit.

Abstract: The invention relates to an envelope of plastic sheet material consisting of a thermoplastic sheet, which is laminated to a sheet of hydrophilic material at least on the side forming the outside of the envelope. The flap belonging to the envelope is laminated to a paper layer at least on its inside, said layer supporting a gumming. The invention also relates to a method for continuously making such envelopes, a web of a plastic sheet laminated according to the above being folded with its edge portions towards a central area, which is left free. One or more paper webs are laminated to this central area and punched-out areas are made in the central area to a desired shape of the flaps of the envelopes. The envelopes are thereafter sealed along their sides by means of transversal welding seams and separated from each other.

Abstract: A stuffed sealed envelope assembly has a free insert immobilized therein against shifting by means of adhering material provided on confronting surfaces both the front and back of the envelope and so characterized that the material will stick only to itself and not to the insert. Such material is placed in contact with the insert while remaining unattached therefrom so as to snugly hold the insert in registry within the envelope. Removal of an envelope stub facilitates opening and extraction of the insert.

Abstract: A laminated film for packaging use which film has at least one lamina of a crystalline flexible polyvinylidene chloride film adhered to a lamina of chlorinated polyethylene film, the chlorinated polyethylene film having a chlorine of concentration of up to approximately 60%, by weight, with the particular chlorine concentration of from 30% to 50%, by weight, being preferred. The laminated film being formed by contacting a polyvinylidene chloride film while in a supercooled noncrystalline state with a chlorinated ethylene film and thereafter effecting crystallization of the polyvinylidene chloride film with substantially random crystal distribution throughout, such as, by heating the thus formed laminate to the crystallization temperature of the polyvinylidene chloride.

Abstract: A self-sealing closure for mailing bags, envelopes, sacks, or similar articles, in which a strip-shaped dry latex, synthetic resin or adhesive gum coating is applied on the inside of a closure flap and on an edge zone of the backside of the mailing bag. A template flap is formed at the free end of the backside, and the magnitude of the contact area between coatings on the closure flap and the backside is variable. The template flap can be folded about a crease line, and in one position of the template flap, there is exposed a partial area of the adhesive contact surfaces, to produce a printed-matter closure. The template flap has another position in which there is exposed the complete area of the adhesive surfaces which may be brought into contact to produce a first-class letter type of seal. The template flap, moreover, has contact cutouts which may have circular, oblong, rectangular, oval or other shapes. The contact cutouts, moreover, are punched out in the vicinity of the front edge of the template flap.

Abstract: A compartmented envelope is disclosed which includes two compartments front-to-back formed by non-overlapping elongated end closure flaps. The front compartment includes a window behind which a preaddressed item might be placed and the envelope is arranged so that the window compartment is in front of the envelope stuffer when the preaddressed item is stuffed. The envelope panels are preapplied with a pressure sensitive adhesive that will only adhere to itself in a pattern so that items smaller than the envelope itself can be inserted and locked in place within the front compartment while the second compartment is available for larger more bulky items. In other embodiments, the envelope includes an unsecured end closure flap that may be opened for postal inspection when the envelope is carrying both first and third class matter, and/or a means for gaining access to one compartment independently of the other.

Abstract: An apparatus for applying latex sealing material to the facing closure flap and opposed body portion of an envelope includes a continuous belt driven conveying means having a generally triangular path, with the envelopes being fed onto the conveying means at one point in the triangle, with the conveying means gripping each of a series of envelopes along its folded edge portion opposite the flap. As the envelopes are conveyed, the flap is first unfolded through an angle of approximately 180.degree. to a generally horizontal position, after which the envelope is passed between an impression roller and a latex applicator roller at which latex is applied to the facing closure flap and the body portion of the envelope. The impression roller and glue roller are disposed at the second point of the triangular path of the conveying means, and next the envelopes are passed through a dielectric dryer for drying the latex sealing material.

Abstract: A money pack envelope which is formed from a single piece of folded paper is disclosed herein. The sheet of flat paper has a pair of spaced parallel fold lines that divide the sheet into a central panel portion and first and second panel portions on respective sides of the central panel portion. The first and second panel portions are folded so that the first panel portion is located between the second panel portion and the central panel portion. The first panel portion also has an inwardly offset portion at one end of the envelope to expose a portion of the central panel portion and the central panel portion has a tab folded along a fold line so that the tab can be connected to the second panel portion.

Abstract: A unit set or assembly of several superimposed parts form a mailer without a stub, folded and detachable glue flaps being provided respectively along opposite sides of the first and second parts from the top, the flaps underlying and being secured to the last or bottom part of the assembly. Three-part or four-part mailer constructions are provided wherein the topmost part comprises a cover ply which, when removed, permits the assembly to be used as a mailer since the second part is secured to the fourth part in a four-part construction by means of glue from the first part flap extending through holes provided in the third part to thereby secure the second and fourth parts together. In the three-part construction, holes are provided in the bottom part so that the glue from the first part flap may extend therethrough so as to secure the second and third parts together.

Abstract: A self-sealing envelope is made by folding a paper blank having a flap, a front panel, a back panel and end flaps. Back seams of the body are sealed with an adhesive having a predetermined dielectric constant. Strips of latex material having the same or a lesser dielectric constant are applied to the flap and body in positions which register when the flap is closed. The envelope is dried in a dielectric heating chamber. Suitable latex materials have a low pH factor or a low metal salt content.

Abstract: An adhesive closure for bags, such as sandwich bags for example, comprising an adhesive stripe located adjacent the open mouth portion of the bag. The adhesive stripe is covered until ready for use by the upper portion of the bag's front wall whereby upward displacement of the front wall exposes the adhesive stripe for sealing the upper portion of the bag walls together.

Abstract: Improved placement apparatus comprises a compliant backer sheet, e.g., formed of foamed polyvinyl chloride, and a clear transparent overlay sheet, e.g., of vinyl, disposed over the backer and secured on three sides thereto, as by thermowelding, to fuse the contiguous backer and overlay plastic materials.A graphics sheet desired by a consumer, e.g., a wallpaper or fabric segment, is inserted between the backer and overlay, and enclosed by securing a flap-like member affixed to the overlay to the backer sheet. A double sided acrylic copolymer adhesive strip is advantageously utilized to secure the flap and backer sheet.

Abstract: A money pack envelope which is formed from a single piece of folded paper is disclosed herein. The sheet of flat paper has a pair of spaced parallel fold lines that divide the sheet into a central panel portion and first and second panel portions on respective sides of the central panel portion. The first and second panel portions are folded so that the first panel portion is located between the second panel portion and the central panel portion. The central and second panel portions have a common lateral edge at one end of the envelope while the adjacent lateral edge of the first panel portion defines a small acute included angle with the edges of the central and second panel portions.

Abstract: Disclosed herein is a stocking envelope having an improved sealing arrangement provided by a pair of stripes of "bimodal adhesive" laid down wet during initial envelope formation to join the glue flaps of the envelope to associated major envelope panels. Subsequently, portions of the dried stripes of "bimodal adhesive" are reactivated by heat during envelope closing to seal an overlying closing flap to a major panel through special apertures formed in the glue flaps.

Abstract: A package is provided especially for containing sterile articles which can be readily opened and which provides for the controlled removal of the contents. The package is sealed in a manner which precludes the formation of channels leading to the interior of the package and compromises sterility. Specifically, the end seal of the package is provided by providing a thermoplastic adhesive which acts as a caulk to seal such potential channels, the thermoplastic adhesive being disposed in a manner whereby it is assured that said adhesive does not contact adhesively incompatible areas.

Abstract: An enclosure including front and rear panels and having corresponding opposite side and opposite end edge portions is provided. Each pair of corresponding end edge portions and one pair of corresponding side edge portions of the front and rear panels are secured together with the other pair of corresponding side edge portions defining an opening therebetween. A closure gap including front and rear strips of a length greater than the aforementioned other pair of side edge portions of the front and rear panels is provided and the front and rear strips of the closure cap include corresponding opposite side and opposite end marginal portions with each pair of corresponding end marginal portions being secured together and one pair of corresponding side marginal portions being secured together, the other pair of corresponding side marginal portions of the cap defining an open side thereof.

Abstract: Transparent sheet having peripheral adhesive area designed to form enclosure enabling viewing of material upon adhesive engagement of the sheet with a substrate wherein a specifically defined section of the peripheral adhesive area is serially renewable enabling repeated engagement and disengagement of the defined adhesive section and substrate and access to the pocket formed and material contained therein.