Abstract: A method of extended shelf life packing of a food, wherein the food comprises meat, consists of the step of packaging the food by sealing the food in a non-barrier, oxygen permeable, flexible package. The package comprises plastic film and the atmosphere sealed within the package is pure oxygen (100% O.sub.2). The plastic film may comprise polyethylene film or low density polyethylene film.

Abstract: A method for preserving meat and the meat processed thereby is disclosed. The method includes the steps of exposing raw meat to an atmosphere consisting essentially of carbon monoxide and maintaining the meat in a sealed container to maintain color and freshness while retarding bacterial growth.

Abstract: Foods, food ingredients, and cooked foods are preserved by the application of pressure of at least 70 MPa (10,000 psi) for more than twelve hours. Some meat and seafood requires maintenance of pressure for the duration of storage and most can be held in good condition without spoiling for more than 1 month. For some fruits and vegetables ripening is stopped by the pressure treatment and packaged products can be stored without refrigeration for at least 6 months while other fruits and vegetables are preserved by 5 day pressure treatment at 175 Mpa (25,000 psi). Meat and seafood is preserved by pressure treatment in various marinades. Because no heat is used foods retain much of their firmness and texture.

Abstract: A water absorbing article and method of using the same are provided in order to remove drip accumulated at the interface of a food and an water absorbing article and to prevent foods from quality degradation. The water absorbing article comprises a water absorbing sheet comprising at least three layers; a liquid permeable layer made of paper or pulp, a water absorbing layer made of paper or pulp containing water absorbing particles, and a liquid-in permeable layer inserted in between the liquid permeable layer and the water absorbing layer, and the water absorbing sheet is inserted in a bag made of a liquid permeable sheet. The object is attained by placing a food on a liquid permeable layer of the thus-formed water absorbing article and subsequently the whole is vacuum packed.

Abstract: Packaging of fruit and vegetables, and other respiring biological materials, makes use of an atmosphere-control member comprising a gas-permeable membrane and an apertured cover member over the membrane. The combination results in a control member having a ratio of CO.sub.2 transmission rate to O.sub.2 transmission rate which is lower than the same ratio for the gas-permeable membrane. This is particularly useful for materials which are preferably stored in an atmosphere containing a relatively high proportion of CO.sub.2.

Abstract: A wrapper for housing chewing gum. The wrapper includes a substrate having a front and a back surface. The front surface includes a top edge, a first side edge, a bottom edge, a second side edge, and three areas of adhesive. A first area of adhesive is located along a portion of the front surface that is adjacent to the first edge and the top edge. A third area of adhesive is located along a portion of the front surface that is adjacent to the second side edge and the top edge. And a second edge of adhesive is located along a portion of the front surface that is in juxtaposition to, but not touching, the bottom edge. A stick of chewing gum and method of wrapping the stick of chewing gum are also provided.

Abstract: Disclosed is a bag arrangement and packaging method for packaging bone-in cuts of meat using two bags to provide a double wall of film surrounding the cut of meat for bone puncture resistance. Both bags are bottom sealed bags formed of a heat shrink film, the inner bag has an interrupted bottom seal to provide an opening for venting air between the bags and the outer bag has a continuous bottom seal. The outer bag is longer than the inner bag so the outer bag can be closed without involving any portion of the inner bag in the closure. The bone-in cut of meat is inserted first into the first bag and then the first bag and its contents are inserted into the second bag, the bags are evacuated and then the outer bag is closed.

Abstract: A wrapper for housing chewing gum. The wrapper includes a substrate having a front and a back surface. The front surface includes a top edge, a first side edge, a bottom edge, a second side edge, and three areas of adhesive. A first area of adhesive extends along a portion of the front surface that is adjacent to the first edge. A third area of adhesive extends along a portion of the front surface that is adjacent to the second side edge. And a second edge of adhesive extends between the first and third areas of adhesive of a portion of the front surface that is in juxtaposition to, but not touching, the bottom edge. A stick of chewing gum and method of wrapping the stick of chewing gum are also provided.

Abstract: Refrigeration-shelf-stable ready-to-drink complete nutritional products such as nutritional supplements, foods for special dietary use, and medical foods can be prepared through an ultra-pasteurization and/or pasteurization process. By varying the choice and quantity of nutritional and functional ingredients, and by varying processing conditions, various such products can be obtained that specifically target the nutritional and health needs of different health conditions and diseases in both healthy individuals and patient populations. Daily values for calories, carbohydrates, fat, protein, minerals and vitamins are calculated to provide a complete nutritional product which when consumed within the refrigeration shelf-life will have substantially maintained its completeness.

Abstract: This invention describes the transient incorporation of CO.sub.2 gas into fruits and vegetables so as to enhance their flavor. The fruits and vegetables are exposed to a strongly CO.sub.2 environment for a specified amount of time and within a specific temperature range. After this exposure the foodstuffs so exposed will have incorporated some of the CO.sub.2 to which they were exposed to and develop a more effervescent and/or tangy flavor through the uptake of the CO.sub.2 to form carbonic acid. This enhancement in flavor is a direct consequence of CO.sub.2 exposure.

Abstract: A method for wrapping sandwich products that include a heel of bread and a crown of bread involves placing the heel of bread on a flat sheet of packaging wrap, placing the crown of bread on the packaging wrap adjacent one of the corners of the packaging wrap, dressing the heel and/or the crown of bread, and then carrying out various folding steps to produce a wrapped or packaged sandwich product. The folding steps include inwardly folding the corner of the packaging wrap on which the crown of bread has been placed together with the crown of bread to position the crown of bread on top of the heel of bread and with the corner of the wrap being positioned in overlying relation to the crown of bread. A second portion of the packaging wrap is then inwardly folded to lie adjacent the folded corner, a third portion of the packaging wrap is inwardly folded to lie adjacent the folded second portion, and then a fourth portion of the packaging wrap is inwardly folded to lie adjacent the folded third portion.

Abstract: A cook-in package for food products is provided having a printed label layer positioned within at least one wall portion of the cook-in package. The printed cook-in package serves dual purposes and eliminates the need for a second printed shrink bag. Moreover, the printed package is capable of being formed and cooked, while still retaining it readable qualities and being resistant to abuse and some distortion.

Abstract: The present invention provides a methods of making an edible material and the application thereof to sticky or moist food products. The edible material may be sprayed on the moist food product. The food product with the edible material thereon may be used make sandwiches or stored without any additional protection. Individually wrapped slices of the moist food product may be further wrapped in plastic films, boxed and transported. Sandwiches utilizing the moist food products with the edible material thereon may be made and stored and sold in convenience store, grocery stores and the like.

Abstract: A method for flavoring tea with a granular flavoring agent includes the step of removing from a reservoir a predetermined amount of granular flavoring agent. The predetermined amount of granular flavoring agent is placed as a small heap onto a moving endless filter paper strip. Subsequently, a predetermined amount of tea is placed adjacent to or onto the small heap of flavoring agent. The tea and flavoring agent heaped onto the filter paper strip are subsequently enclosed in a tea bag made from the filter paper strip accordingly. The inventive device for performing the method includes a device for moving the endless filter paper strip in an advancing direction. A tea metering device and a metering device for a flavoring agent are positioned directly above the endless filter paper strip whereby the metering device for the flavoring agent is positioned upstream of the tea metering device in the advancing direction.

Abstract: The disclosure relates to a method of producing and pre-distribution preparing unfrozen, expanded ice cream mix with superior storage and shelf-life properties. Starting ingredients necessary for producing the ice cream mix are mixed together, whereafter the mix is heat-treated or otherwise treated so as to exterminate micro-organisms, in particular pathogenic bacteria, present in the mix. The thus treated mix is expanded and subsequently packed in packages ready for distribution. Ice cream mix produced according to this method has extended shelf-life and can be stored in the unfrozen state for long periods of time with retained pristine freshness qualities, without any requirement of cold storage at extremely low storage temperatures.

Abstract: A moisture vapor barrier film composition can comprise a thermoplastic web comprising a thermoplastic polymer and a dispersed cyclodextrin composition having substituents that compatibilize the cyclodextrin in the film. The thermoplastic/cyclodextrin film obtains substantial barrier properties from the interaction between the substituted cyclodextrin in the film material with a water permeant. The substituents on the cyclodextrin molecule causes the cyclodextrin to be dispersible and stable in the film material resulting in an extrudable thermoplastic. Such materials can be used as a single layer film material, a multilayer film material which can be coated or uncoated and can be used in structural materials wherein the thermoplastic is of substantial thickness resulting in structural stiffness.

Abstract: Methods and containers for preserving a product such as a respiratory product having an internal vapor pressure. The product is placed into an enclosure, and the enclosure is sealed and pressured with appropriately humidified air or other suitable oxygen containing gas to a positive pressure with respect to ambient pressure to provide a vapor pressure greater than or at least equal to the internal vapor pressure of the product. The volume of the product in relation to the volume of the enclosure and the pressure are such that the enclosure has free air space sufficient to prevent the onset of an anaerobic condition for substantially the storage period of the product assuming the enclosure is maintained approximately at a predetermined temperature.

Abstract: A rolled food item (110) is formed by rolling a strip of food (14) supported on support material (16) around the cut leading edge into a roll having multiple rotations with the strip of support material (16) located on the outside of the roll. A label (68) is attached to the support material (16) and extends over the trailing edge of the support material (16). Adhesive (120) is applied as a solid layer over the entire inside surface (112) of the label (68). Masking (122, 124, 130) is applied over the adhesive (120) which interferes with the adhesive properties of the adhesive (120).

Abstract: A packaged product has a film configured around a cooked meat product. The cooked meat product is adhered to a meat-contact surface of the film. The meat-contact surface of the film comprises an olefin/acrylic acid copolymer having a Vicat softening point, in .degree.F., of at least 232 minus 5 multiplied by the weight percent of acrylic acid mer in the olefin/acrylic acid copolymer. The cooked meat product comprises at least one member selected from the group consisting of sausage, bologna, mortadella, braunschweiger, and high-wateradded added ham. The olefin/acrylic acid copolymer has been found to adhere well to high fat/low protein meat products is orientable for the formation of heat-shrinkable films, and provides a stronger seal than previously available olefin/acrylic acid copolymers.

Abstract: A method of salting a cheese in a water-impermeable packing, where the desired amount of salt is applied on one or more of the outer surfaces of the cheese and/or in the used packing material, whereafter a water-impermeable packing is provided by means of said packing material, said packing surround the cheese and the salt. The method renders it possible to avoid the complicated and cost-intensive brining in brine and to control the content of salt to an optimal degree.

Abstract: Process and apparatus for packaging beverages such as fruit juice provides plastic pouches filled with juice and sealed to form containers that are shelf stable for extended periods. The process involves limited heating, holding and cooling times for the juice. Preferred film for the pouches includes a multilayer construction having a barrier core and heat sealable outer layers.

Abstract: A liquid-absorbent sheet containing a liquid-absorbing material capable of absorbing drips of food, wherein a part of the outer surface of the liquid-absorbent sheet is composed of a liquid-permeable film, a part of other outer surface thereof is composed of a liquid-semipermeable film, the liquid-semipermeable film is a liquid-impermeable film having formed therein pores, the diameter of the pore is in the range of from 0.05 mm to 0.5 mm, and the porosity of the pores is in the range of from 0.01% to 0.4%. The liquid-absorbent sheet effectively absorbs drips oozing from a drippy food to prevent deterioration in qualities of the food for a prolonged period of time.

Abstract: An apparatus and method are provided for forming a package with heat tack seals for a slice of a food item. A web of thermoplastic material is first formed into a tubular arrangement with a longitudinal heat tack seal. To form the tubular arrangement, means are provided for folding a continuous web of thermoplastic material into a tube and for continuously forming a heat seal along the longitudinal face of the folded web. The food item which has been formed into a soft mass, is then inserted into the tubular member and the tubular member is flattened to form a thin film tube. Means are provided for forming a heat tack cross-seal which is disposed substantially transverse to the longitudinal forward moving direction of the web.

Abstract: The invention provides a film, a package and methods for employing the same. The film has a first layer of an elastomer and a second layer of a polyethylene such as a single site catalyst polyethylene. The film can have a third layer of a polyethylene such that the second layer is disposed between the first and third layers. The polyethylene of the third layer also can be single site catalyst polyethylene and, the elastomer of the first layer can be styrene butadiene copolymer. The film has an oxygen transmission rate of up to about 1000, such as 150-450 cc/100 in.sup.2 /24 hr., typically 260-400 cc/100 in.sup.2 /24 hr., with values of 300, 350-360, 400 cc/100 in.sup.2 /24 hr. and even higher exhibited by the film. The film is suitable for packages, for instance, packaging for cole slaw and leafy salad. The film also exhibits excellent clarity, durability, seal strength and machinability.

Abstract: A process for packaging coffee, which includes a grinding phase of the coffee coming from silos, a forming phase for forming flexible or semi-rigid containers and a phase for filling such containers with the coffee and subsequent sealing of the pack, in which, during the container forming phase, the containers are preliminarily filled with gas and, at the same time, closed at their top, in such a way as to be able to be opened again immediately before filling. The filling takes place in an atmosphere controlled by a flow of gas, wherein the gas for preliminarily filling the containers and/or for controlling the atmosphere during the container filling phase is drawn from a coffee grinding plant. An installation for putting such process into effect is also proofed.

Abstract: The present invention provides rubber articles for single or multiple use food contact which, when used in smoking, curing or cooking meat or poultry, produce a low level of nitrosoamines or nitrosatable amines in the meat or poultry product.

Abstract: A method for packaging products susceptible of absorbing carbon dioxide, in particular perishable food products. The method comprises the step of inserting a product in a containment package and the step of sealing the package. Before sealing, a preset amount of solid-phase carbon dioxide is introduced in the containment package. The sublimated carbon dioxide is then absorbed by the packaged product, avoiding collapse of the package.

Abstract: A package for packaging fresh meat in a substantially oxygen-free atmosphere, whereby the packaging provides for a prolonged shelf life of the packaged meat products so that the meat will bloom to a desired red color when the packaging is opened. The packaging includes a packing tray which is sized for receiving a piece of fresh meat of predetermined cut. The tray is overwrapped with a web of clear plastic wrapping material. The overwrapped tray is ventilated to ensure gas communication between enclosed regions of the overwrapped tray and the outside ambient without blockage due to run off juices from the meat product or shifting of the meat product within the tray during transport. A number of similarly ventilated overwrapped trays are then placed within an outer barrier bag which is first evacuated of normal atmosphere and then flushed with a preservation-enhancing gas. The outer barrier bag is then sealed.

Abstract: The present invention relates to a technique for packaging fresh plants, by which the freshness of the fresh plants can be retained from the time they are shipped by producers, until the time they are consumed by consumers. By controlling the water vapor permeability, and oxygen and carbonic acid gas transmission rates of a film, a package of fresh plant suitable for non-airtight or airtight packaging, a packaging material useful for such a package, and a method for retaining the freshness of fresh plants are provided.

Abstract: The disclosure relates to a method of producing and pre-distribution preparing unfrozen, expanded ice cream mix with superior storage and shelf-life properties.Starting ingredients necessary for producing the ice cream mix are mixed together, whereafter the mix is heat-treated or otherwise treated so as to exterminate micro-organisms, in particular pathogenic bacteria, present in the mix. The thus treated mix is expanded and subsequently packed in packages ready for distribution.Ice cream mix produced according to this method has extended shelf-life and can be stored in the unfrozen state for long periods of time with retained pristine freshness qualities, without any requirement of cold storage at extremely low storage temperatures. No Drawings.

Abstract: A package which allows for butchering and packaging of fresh red meat at a centralized facility is provided which includes a support member such as a tray for receiving and supporting the meat, a permeable film enclosing the meat and an impermeable film enclosing the permeable film which remains in place during distribution and is removed at retail. A discontinuity in the seal between the permeable film and the tray provides for rapid introduction of oxygen to the packaged meat.

Abstract: A preproofed, uncooked dough is provided with improved storage stability. The dough product is packaged in a sealed package and stored at a temperature of less than about 45.degree. (7.degree. C.) and, if the package contains headspace, a substantial portion of the gas therein is the same as the leavening gas, carbon dioxide, and the dough also contains a polyol.

Abstract: Sauerkraut is mixed with a predetermined quantity of edible vegetable oil to improve the flow properties of the sauerkraut during packaging in single use film type packages. The vegetable oil also facilitates the removal of the sauerkraut from the package. A method is also provided for flavoring the sauerkraut before it is packaged in single use packages.

Abstract: A method and apparatus for preparing and packaging a wide variety of uncooked food articles, such as uncooked cookie dough, in which the packaged food articles are premixed, shaped and arranged on cooking parchment so that they are ready for cooking immediately upon their removal from the package. In accordance with the method of the invention, a large volume of uncooked food articles can be prepared and packaged in a ready-to-use form for immediate use by high-volume users such as commissaries, schools, major restaurants and like institutions. More particularly, in the practice of one method of the invention large numbers of precisely formed segments of cookie dough are formed and strategically arranged in rows on baking parchment so that the baking parchment can be rolled into unrollable rolls, placed in a suitable shipping container and then, at time of use be readily removed from the package, unrolled and placed directly into a conventional baking oven.

Abstract: A package for a product includes a support member having a barrier film disposed thereon and supporting the product; web structure for enclosing the product and the support member, the web structure including a first web and a second web sealed to the first web for enclosing the product wherein the second web includes a non-barrier layer sealed to the first web and a peelable barrier layer; and tab structure for initiating peel of the peelable barrier layer from the non-barrier layer at a location where the non-barrier layer is sealed to the first web whereby peeling of the peelable barrier layer does not cause peeling of the barrier film disposed on the support member.

Abstract: An apparatus and method are provided for forming a package with heat tack seals for a slice of a food item. A web of thermoplastic material is first formed into a tubular arrangement with a longitudinal heat tack seal. To form the tubular arrangement, means are provided for folding a continuous web of thermoplastic material into a tube and for continuously forming a heat seal along the longitudinal face of the folded web. The food item which has been formed into a soft mass, is then inserted into the tubular member and the tubular member is flattened to form a thin film tube. Means are provided for forming a heat tack cross-seal which is disposed substantially transverse to the longitudinal forward moving direction of the web.

Abstract: A barrier film composition can comprise a thermoplastic web comprising a thermoplastic polymer and a dispersed cyclodextrin composition having substituents that compatibilize the cyclodextrin in the film. The thermoplastic/cyclodextrin film obtains substantial barrier properties from the interaction between the substituted cyclodextrin in the film material with a permeant. The substituents on the cyclodextrin molecule causes the cyclodextrin to be dispersible and stable in the film material resulting in an extrudable thermoplastic. Such materials can be used as a single layer film material, a multilayer film material which can be coated or uncoated and can be used in structural materials wherein the thermoplastic is of substantial thickness resulting in structural stiffness.

Abstract: Foods and food ingredients are sterilized and preserved by the application of pressure of 250 KPa (25,000 psi) for 5 days. Some seafood requires maintenance of pressure for the duration of storage. For most fruits and vegetables ripening is stopped by the pressure treatment and packaged products can be stored without refrigeration for at least 6 months. Because no heat is used foods retain much of their firmness and texture.

Abstract: Fully cooked, starchy foodstuffs, such as rice and pasta, are preserved against microbiological spoilage by treatment with a predetermined quantity of an edible acid. Packages of fully cooked starchy foodstuffs are provided which are shelf-stable for periods in excess of 6 months and are neutralized to a proper pH to avoid sourness. Ready-to-eat meals of neutralized acid preserved starchy foodstuffs are also provided. Edible alkaline neutralizing agents may be used to balance the pH. Also provided are methods for producing shelf-stable fully cooked, starchy foodstuffs wherein measured quantities of acid are introduced to fully cooked, starchy foodstuffs to inhibit microbiological growth.

Abstract: A package, packaged food product and method are provided for packaging thinly sliced proteinaceous products such as sliced luncheon meats, cheeses and the like in a manner such that the thinly sliced products are supported by the packaging in a manner that resists shifting of the thinly sliced products within the package. The package has a generally wedge-shaped cavity into which a doubled-over shingled stack of the slices are sealed. Preferably, the package includes a semi-rigid panel and a flexible panel, at least one of which is generally transparent for displaying a substantial portion of the surface of at least one of the thin slices.

Abstract: A process for the production of dimensionally stable, sliceable, starch-containing products, in particular dumplings, in boil-in-bag packages, which comprises at least partially gelatinizing the starch-containing starting material, then freezing it, comminuting the frozen starch sponge, thawing it by pressing and/or drying after dewatering, and packaging it in boil-in-bag packages, the fill quantity and the remaining head space in the bags being dimensioned in such a way that the cooked product completely fills the boil-in-bag packages and dimensionally stable, sliceable, edible products result owing to the pressure of the hydrated contents of the bag against the bag wall.

Abstract: A package, packaged food product and method are provided for packaging thin proteinaceous products such as sliced luncheon meats, cheeses and the like in a manner such that the thin products are supported by the packaging to resist shifting of the thin products within the package. The package has a generally bulbous-shaped cavity into which a doubled-over shingled stack of the products are sealed. The package includes a peelable and resealable feature which is preferably provided by films out of which the package is constructed.

Abstract: A process for packaging coffee, which includes a grinding phase of the coffee coming from silos, a forming phase for forming flexible or semi-rigid containers and a phase for filling such containers with the coffee and subsequent sealingly the pack, in which, during the container forming phase, the containers are preliminarily filled with gas and, at the same time, closed at their top, in such a way as to be able to be opened again immediately before filling. The filling takes place in an atmosphere controlled by a flow of gas, the gas where in for preliminarily filling the containers and/or for controlling the atmosphere during the container filling phase is drawn from a coffee grinding plant. An installation for putting such process into effect is also provided.

Abstract: A plurality of rolls of pliable backing material are fed through guides in which the configuration of the backing material is converted from flat to generally U-shaped strips. Unbaked dough is deposited into the strips as they feed forwardly toward a baking oven. The strips, filled with unbaked dough, are moved through the oven at a rate which enables the oven heat to bake the dough. When the strips, filled with baked dough, emerge from the oven, they are intermittently severed, advantageously by a high pressure stream of water, to create discrete baked products. These products are then conveyed for a time and distance sufficient to permit cooling, and are thereafter wrapped.

Abstract: The invention provides a film, a package and methods for employing the same. The film has a first layer of an elastomer and a second layer of a polyethylene such as a single site catalyst polyethylene. The film can have a third layer of a polyethylene such that the second layer is disposed between the first and third layers. The polyethylene of the third layer also can be single site catalyst polyethylene and, the elastomer of the first layer can be styrene butadiene copolymer. The film has an oxygen transmission rate of up to about 1000, such as 150-450 cc/100 in.sup.2 /24 hr., typically 260-400 cc/100 in.sup.2 /24 hr., with values of 300, 350-360, 400 cc/100 in.sup.2 /24 hr. and even higher exhibited by the film. The film is suitable for packages, for instance, packaging for cole slaw and leafy salad. The film also exhibits excellent clarity, durability, seal strength and machinability.

Abstract: A method of packaging meat emulsion in a flexible thermoplastic bag, wherein the bag has dispersed on its insides, prior to insertion of the meat emulsion into the bag, additives such as liquid colorant or liquid smoke, via a squeeze roller and backing plate (or two squeeze rollers), is shown. An apparatus for dispersing the additives via a squeeze roller and backing plate (or two squeeze rollers) is also shown.

Abstract: A method for providing single units of sugarless chewing gum and compositions so packaged. Individual pieces of chewing gum are provided which units will have a sufficiently long shelf life in order to allow the units to be sold and carried by a consumer even in environments that are detrimental to the stability of chewing gum, e.g., high temperature and humidity. To this end, a piece of chewing gum is provided that is substantially sugar free and that is surrounded by a wrapper, with at least a first portion of the wrapper being sealed to a second portion of the wrapper to create a sealed environment that houses the piece of chewing gum. The wrapper has a moisture vapor permeation rate of less than 0.10 g/100 in.sup.2 /24 hr at 100.degree. F., 90% RH as measured by ASTM method F1249-90. In an embodiment, the wrapper has an oxygen permeability that is less than 0.10 cc/100 in.sup.2 /24 hr at 1 ATM as measured by ASTM method D3985-81.

Abstract: The method of forming a microwaveable package, generally from a plurality of liners of material, and incorporating a heat-assist layer preferably intermediately of the liners of material, which said heat assist material comprising powdered carbon, that is originally applied to the inner surface of one of the intended liners, and in register at that location where the layer is desired within the formed microwave package. The material may be imprinted by a gravure or other roller application onto the inner surface of one of said liners of material, or adhesive applied or added onto that adhesive that laminates the liners together, in order to assure that proper and convenient registration of the layer within the laminate material, and provide for its location within the formed package preferably at a lower position where the food or other product is arranged, during microwaving, to attain that necessary heat assist desired from its addition.

Abstract: A sandwich wrapper is formed from a substantially rectangular sheet by providing a plurality of overlapping folds which are positioned into a substantially pleated arrangement. Two substantially parallel lines of adhesive, glue, or adhesive tape are used to attach spaced apart zones of the folded areas to each other. The dimensions of the sheet with respect to an article to be wrapped, spacing between the adhesive lines, and dimensions of the fold can be calculated to provide an efficient and cost-effective food wrapper.

Abstract: A heat-shrinkable bag generally includes a multilayer, coextruded, oriented, tubular film, the film comprising an inner, gas-permeable portion and an outer, substantially gas-impermeable portion peelably adhered to the inner portion at a peel force ranging from about 0.001 to about 2.5 pounds/inch.