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EP1786690A2 - Sac similaire a un t-shirt a inscription de bande publicitaire, appareil et procede associees - Google Patents

Sac similaire a un t-shirt a inscription de bande publicitaire, appareil et procede associees

Info

Publication number
EP1786690A2
EP1786690A2 EP04794540A EP04794540A EP1786690A2 EP 1786690 A2 EP1786690 A2 EP 1786690A2 EP 04794540 A EP04794540 A EP 04794540A EP 04794540 A EP04794540 A EP 04794540A EP 1786690 A2 EP1786690 A2 EP 1786690A2
Authority
EP
European Patent Office
Prior art keywords
bag
strip
plastic
reference markers
strips
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04794540A
Other languages
German (de)
English (en)
Inventor
Mark E. Daniels
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1786690A2 publication Critical patent/EP1786690A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/004—Information or decoration elements, e.g. level indicators, detachable tabs or coupons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0014—Flexible containers made from webs by folding webs longitudinally having their openings facing transversally to the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
    • B31B70/266—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement involving gusset-forming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/36—Folding sheets, blanks or webs by continuously feeding them to stationary members, e.g. plates, ploughs or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/812—Applying patches, strips or strings on sheets or webs
    • B31B70/8123—Applying strips

Definitions

  • This invention relates to the field of plastic bags of the type employed by retailers in packing food items and other merchandise, with particular application to bags that are unsealed or partially sealed along their top edges and include a promotional strip attached in registered form to the bag to maximize the visibility of the promotional material.
  • the promotional strips used with these bags include a number of discreet coupons.
  • the coupons are joined end to end with a perforation or simply printed on the promotional strip with indications as to where to cut the strip to separate the coupons.
  • at least one coupon would typically be lost as a top or bottom seam of the bag would intersect a portion of the coupon.
  • the present invention addresses this problem by providing a means for registering the promotional strip so that only whole numbers of coupons are positioned between the top and bottom bag edges.
  • U.S. Patent Application No. 2002/0170670 published for Nguyen discloses a system for dispensing and positioning a coupon strip on a film tube.
  • the proposed invention provides for dispensing and positioning a strip of coupons from a roll to a position longitudinally aligned with and adjacent to a film tube. This is accomplished by mounting the coupon strips onto a spindle that is vertically adjustable so that it may be situated in various positions upon the first and second vertical support members of the gusseting machine that is used in the bag making operation. This alignment is only a longitudinal or side-to-side alignment of the coupon strip on the bag.
  • the invention does not contemplate registering the coupons to the bag ends so as to prevent use of partial coupons.
  • U.S. Patent No. 6245,168, issued to Coenen et al. is directed to a process and apparatus for registering continuously moving stretchable layers.
  • the present invention relates to processes and apparatus for making disposable absorbent articles but may be applied to the production of various products which are fabricated in a continuous production line by the sequential addition of components to previously supplied components. It is particularly directed to the bringing together of individual separate components so that the components are in a desired relation with respect to one another. It is accomplished by controllably registering a plurality of reference marks of a continuously moving first layer with a plurality of corresponding reference marks of a continuously moving elasticized second layer.
  • U.S. Patent No. 5,341,930 issued to Counts et al. discloses a package having a separable overlay.
  • the invention relates to a flexible package having a detachable decorative overlay portion that allows the retailer to provide marketing information that is removable from the body of the package.
  • the multiple separable overlays are registered to each other rather than to a continuous web of polyethylene tubing that later becomes a bag.
  • the invention includes a feature that permits easy removal of an outer overlay from the underlying layers. The entire perimeter of one layers is connected to the entire perimeter of an underlying layer to form a closed package for the containment of goods.
  • U.S. Patent No. 4,400,230 issued to Wyslotsky, is directed to a label indexing and applicator apparatus.
  • the apparatus provides for the indexing of distinct labels onto a substrate stock and utilizes differential tension to the strip label stock in order to do so.
  • the labels are longitudinally separated on the strip by transparent label divider portions so that the strip label stock is divided into discrete label units.
  • the indexing and applicator apparatus comprises elements that function to form a laminate of a label material bearing selected visual indicia and a substrate backing material.
  • the apparatus described in this patent uses transparent spaces between adjacent labels to sense the ends of each label and to control placement of the labels on a substrate.
  • the labels are then heat bonded to the substrate over their entire length using a heat nip roller.
  • 5,369,936, issued to Callahan et al. discloses an apparatus and method for securing a detachable promotional banner or coupon to a flexible package.
  • the apparatus and method is specifically intended to attach pre-printed promotional banners or coupons to the exterior of a flexible snack food package.
  • the product package with banner is adhered to an outer surface of the package at an intermediate point as well as at points that are adjacent to the package's lower and upper seals. While this reference does disclose registering the banner stock to the packaging material, the banner stock is releasably adhered to a closed, sealed package with contents inside.
  • T-shirt style bags have coupon strips attached to upper and lower heat seals of the bags either within the bag gusset or on top of the bag gusset. It is a further objective to insure that only whole numbers of coupons are a part of the coupon strip, i.e., that the end of a first coupon roughly coincides with the upper or lower seal of the bag. It is still a further objective that the attachment of such registered coupon strips to the T-shirt bags be easily and reliably accomplished. Finally, it is an objective of the invention that the attachment of registered coupon strips to T-shirt bags be sufficiently economical to provide for their continued use.
  • a plastic shopping bag with registered advertising strip may be formed from the following components.
  • a pair of registering front and back walls are provided.
  • the walls are secured together along their side, top and bottom edges and open across a portion of their top edges.
  • the walls when pulled apart from each other, define a space into which articles may be placed.
  • At least one of the secured together side edges is gusseted.
  • a plastic strip is provided.
  • the plastic strip has first and second remainder portions located at either end of the strip and a removable portion located between the remainder portions.
  • the plastic strip is located on one of the front and back walls along one side of the gusset.
  • the strip is of a length not greater than a length of the gusseted side edge.
  • the strip is sealed to one of the top edges of the bag walls at an end of the first remainder portion and sealed to one of the bottom edges of the bag walls at an end of the second remainder portion.
  • Promotional material is printed upon at least one of an upper surface or a lower surface of the removable portion of the strip. The promotional material begins and ends within the removable portion of the strip.
  • the plastic strip is located within the at least one gusset.
  • the removable portion of the strip is removably attached to the first remainder portion with at least one perforation line and is removably attached to the second remainder portion with at least one perforation line.
  • the promotional material is selected from the group consisting of coupons, household hints, contests, games and product or service information.
  • a pair of registering front and back walls are provided.
  • the walls are secured together along their top edges, first and second side edges, bottom edges and open across at least a portion of their top edges.
  • the walls when pulled apart from each other, defining a space into which articles may be placed.
  • At least one of the secured together first and second side edges is folded inwardly from the front and back walls to form a gusset.
  • the gusset has top and bottom edges.
  • the top edges of the front wall, the back wall, and the gusset terminate in an upper seal.
  • the bottom edges of the front wall, the back wall, and the gusset terminate in a lower seal.
  • the lower seal is perpendicular to the first and second side edges.
  • a U-shaped cut-out is provided.
  • the U-shaped cut-out is located in an upper portion of the bag and commences at a first point above the upper seal spaced inwardly from the first side edge and extends to a second point above the upper seal spaced inwardly from the second side edge.
  • the cut-out extends downwardly toward the lower seal, thereby forming an open bag mouth and a pair of bag handles.
  • a plastic strip is provided.
  • the plastic strip has first and second remainder portions located at either end of the strip and a removable portion located between the remainder portions.
  • the plastic strip is located on at least one of the front and back walls above the at least one gusset.
  • the strip is of a length not greater than a length of the gusset.
  • the strip is sealed to one of the top edges of the bag walls at an end of the first remainder portion and sealed to one of the bottom edges of the bag walls at an end of the second remainder portion.
  • Promotional material is printed upon at least one of an upper surface or a lower surface of the removable portion of the strip. The promotional material begins and ends within the removable portion of the strip.
  • the plastic strip is located within the at least one gusset.
  • the removable portion of the strip is removably attached to the first remainder portion with at least one perforation line and is removably attached to the second remainder portion with at least one perforation line.
  • the promotional material is selected from the group consisting of coupons, household hints, contests, games and product or service information.
  • the bags are severed from one another and stacked in a registered bag pack.
  • the bags are attached to one another at a perforation line and wound into a roll.
  • An apparatus for making plastic shopping bags with registered advertising strip can be constructed from the following components.
  • a supply of polyethylene material is provided.
  • An extruder is provided.
  • the extruder produces a continuous tube of polyethylene material.
  • a gusseter is provided.
  • the gusseter forms at least one side gusset in the continuous tube.
  • a flattener is provided.
  • the flattener flattens the gusseted tube.
  • the gusseted tube has a top surface, a bottom surface, a first side edge and a second side edge.
  • a marker is provided.
  • the marker places bag reference markers on the continuous tube at a first predetermined interval.
  • a roll of plastic strip material is provided.
  • the plastic strip material includes a plurality of plastic strips.
  • Each of the strips has first and second remainder portions located at either end of the strip and a removable portion located between the remainder portions.
  • the plastic strips have promotional material printed upon at least one of an upper surface or a lower surface of the removable portion of the strips and strip reference markers located upon at least one of an upper surface or a lower surface of the strips at the first predetermined interval.
  • An unwind mechanism is provided. The unwind mechanism supports the roll of plastic strip material and modulates the speed at which the plastic strip material is unwound from the roll.
  • An insertion device is provided. The insertion device receives the plastic strip material from the roll located on the unwind mechanism. The insertion device directs the plastic strip material into the at least one side gusset.
  • a first sensor is provided. The first sensor detects passage of the bag reference markers.
  • a second sensor is provided. The second sensor detects passage of the strip reference markers.
  • a controller is provided. The controller monitors input from the first and second sensors, operator input and controls the speed at which the plastic strip material is unwound from the roll
  • a sealer is provided.
  • the sealer seals the first and second remainder portions of the plastic strips to first and second lines orthogonal to the first and second side edges, respectively.
  • the remainder portions of the plastic strips are sealed at intervals determined by the bag reference markers, thereby forming upper and lower bag seals and a plurality of bag blanks.
  • Each of the bag blanks has a plastic strip located within the at least one gusset.
  • the bag reference markers are substantially aligned with the strip reference markers and the removable portion of the strip begins and ends between the upper and lower bag seals.
  • a bag blank cutter is provided.
  • the bag blank cutter severs the bag blanks between an upper bag seal of a first bag blank and a lower bag seal of a second bag blank at a cut line.
  • a stacker is provided. The stacker arranges a predetermined number of bag blanks into a registered stack.
  • a bag opening cutter is provided. The cutter removes a substantially U-shaped section from an upper portion of the bag blanks located in the bag stack. The U-shaped section extends from a first point on the cut line spaced inwardly from the first side edge, downward toward the lower bag seal, across a part of the upper portion, and upwardly to a second point on the cut line spaced inwardly from the second side edge, thereby forming an open bag mouth and a pair of bag handles.
  • the insertion device is replaced with an application device.
  • the application device receives the plastic strip material from the roll located on the unwind mechanism and directs the plastic strip material on to either of the top surface or the bottom surface of the gusseted tube either above or below the at least one side gusset.
  • the sealer seals the first and second remainder portions of the plastic strips to first and second lines orthogonal to the first and second side edges, respectively, at intervals determined by the bag reference markers, thereby forming upper and lower bag seals and a plurality of bag blanks.
  • Each of the bag blanks has a plastic strip located either above or below the at least one gusset.
  • the stacker is replaced with a perforator and a winder.
  • the perforator forms a perforation line on the bag blanks between an upper bag seal of a first bag blank and a lower bag seal of a second bag blank.
  • the bag winder winds the bags into a roll.
  • the insertion device is replaced with an application device while retaining the perforator and the winder.
  • the application device receives the plastic strip material from the roll located on the unwind mechanism and directs the plastic strip material on to either of the top surface or the bottom surface of the gusseted tube either above or below the at least one side gusset.
  • the sealer seals the first and second remainder portions of the plastic strips to first and second lines orthogonal to the first and second side edges, respectively, at intervals determined by the bag reference markers, thereby forming upper and lower bag seals and a plurality of bag blanks.
  • Each of the bag blanks has a plastic strip located either above or below the at least one gusset.
  • the apparatus for making plastic shopping bags with registered advertising strip includes an operator interface.
  • the interface inputs at least bag length, coupon length and coupon offset distance variables.
  • the unwind mechanism includes at least one unwind nip roller.
  • the unwind nip roller tensions the plastic strip material and the controller modulates the tensioning.
  • the roll of plastic strip material includes at least two parallel streams of plastic strips. The parallel streams are joined to one another at side edges of the streams.
  • the apparatus includes a slitter mechanism.
  • the slitter mechanism separates the at least two parallel streams of plastic strips into individual streams.
  • the apparatus includes at least one tensioning nip roller for each individual stream of plastic strips.
  • the apparatus includes a turn bar for at least one of the individual streams of plastic strips.
  • the turn bar aligns the individual stream of plastic strips with the bag blanks.
  • the apparatus includes a strip perforating mechanism.
  • the strip perforating mechanism perforates the plastic strips between the remainder portions located at either end of the strip.
  • a method for making plastic shopping bags with registered advertising strip includes the steps of: Providing a supply of polyethylene material. Extruding a continuous tube of polyethylene material. Forming at least one side gusset in the continuous tube. Flattening the gusseted tube. The gusseted tube has a top surface, a bottom surface, a first side edge and a second side edge. Placing bag reference markers on the gusseted tube at a first predetermined interval. Providing a roll of plastic strip material.
  • the plastic strip material includes a plurality of plastic strips, each of the strips has first and second remainder portions located at either end of the strip and a removable portion located between the remainder portions.
  • the plastic strips have promotional material printed upon at least one of an upper surface or a lower surface of the removable portion of the strips.
  • Strip reference markers are located on at least one of an upper surface and a lower surface of the strips at the first predetermined interval.
  • Detecting passage of the strip reference markers Providing a controller. Monitoring input from the first and second sensors and operator input. Controlling the speed at which the plastic strip material is unwound from the roll. Directing the plastic strip material to the insertion device. Inserting the plastic strip material into the at least one gusset. Aligning the bag reference markers with the strip reference markers, thereby causing the removable portion of the strip to begin and end between the upper and lower bag seals.
  • Providing a sealer Sealing the first and second remainder portions of the plastic strips to first and second lines orthogonal to the first and second side edges, respectively, at intervals determined by the bag reference markers, thereby forming upper and lower bag seals and a plurality of bag blanks.
  • Each of the bag blanks has a plastic strip located within the at least one gusset.
  • Providing a bag blank cutter Severing the bag blanks between an upper bag seal of a first bag blank and a lower bag seal of a second bag blank at a cut line.
  • Providing a stacker Arranging a predetermined number of bag blanks into a registered stack.
  • Providing a bag opening cutter Removing a substantially U-shaped section from an upper portion of the bag blanks located in the bag stack.
  • the U-shaped section extending from a first point on the cut line spaced inwardly from the first side edge, downward toward the lower bag seal, across a part of the upper portion, and upwardly to a second point on the cut line spaced inwardly from the second side edge, thereby forming an open bag mouth and a pair of bag handles.
  • the insertion device is replaced with an application device.
  • the application device receives the plastic strip material from the roll located on the unwind mechanism and the method includes the following additional steps. Directing the plastic strip material on to either the top surface or the bottom surface of the gusseted tube either above or below the at least one side gusset. Sealing the first and second remainder portions of the plastic strips to first and second lines orthogonal to the first and second side edges, respectively, at intervals determined by the bag reference markers, thereby forming upper and lower bag seals and a plurality of bag blanks, each of the bag blanks having a plastic strip located either above or below the at least one side gusset.
  • the stacker is replaced with a perforator and a winder and the method includes the following additional steps: Forming a perforation line on the bag blanks between an upper bag seal of a first bag blank and a lower bag seal of a second bag blank. Winding the bags into a roll.
  • the insertion device is replaced with an application device and the method includes the following additional steps: Receiving the plastic strip material from the roll disposed upon the unwind mechanism. Directing the plastic strip material on to either the top surface or the bottom surface of the gusseted tube either above or below the at least one side gusset. Sealing the first and second remainder portions of the plastic strips to first and second lines orthogonal to the first and second side edges, respectively, at intervals determined by the bag reference markers, thereby forming upper and lower bag seals and a plurality of bag blanks, each of the bag blanks having a plastic strip located either above or below the at least one gusset.
  • the method includes the further step of inputting at least bag length, coupon length and coupon offset distance variables.
  • the method includes the further steps of: Providing a slitter mechanism. Separating at least two parallel streams of plastic strips into individual streams.
  • the method includes the further steps of: Providing a strip perforating mechanism. Perforating the plastic strips between the remainder portions located at either end of the strip. Description of the Drawings
  • Figure 1 is a perspective view of a T-shirt style bag having an advertising or coupon strip, illustrating advertising on the coupons, heat sealed to the upper and lower seams of the bag with the attached coupons disposed above a gusset along one side of the bag;
  • Figure IA is a cross-sectional view taken along the line 1A-1A of Figure 1;
  • Figure 2 is a perspective view of a T-shirt style bag having an advertising or coupon strip, illustrating advertising on the coupons, heat sealed to the upper and lower seams of the bag with the removably attached coupons disposed within a gusset along one side of the bag;
  • Figure 2 A is a cross-sectional view taken along the line 2A-2A of Figure 2;
  • Figure 3 is a perspective view of an apparatus for manufacturing the Figure 1 bag;
  • Figure 4 is a perspective view of an apparatus for manufacturing the Figure 2 bag.
  • Figure 5 is a schematic representation of the method of controlling the manufacture of the Figure 1 and Figure 2 bags.
  • a plastic shopping bag with registered advertising strip 10 may be formed from the following components.
  • a pair of registering front 15 and back 20 walls are provided.
  • the walls 15, 20 are secured together along their side 25, top 30 and bottom 35 edges and open across a portion of their top edges 30.
  • the walls 15, 20, when pulled apart from each other, define a space 40 into which articles (not shown) may be placed.
  • At least one of the secured together side edges 25 is gusseted.
  • a plastic strip 45 is provided.
  • the plastic strip 45 has first 50 and second 55 remainder portions located at either end 60 of the strip 45 and a removable portion 65 located between the remainder portions 50, 55.
  • the plastic strip 45 is located on one of the front 15 and back 20 walls along one side 70 of the gusset 75.
  • the strip 45 is of a length 80 not greater than a length 85 of the gusseted side edge 25.
  • the strip 45 is sealed to one of the top edges 30 of the bag walls 15, 20 at an end 90 of the first remainder portion 50 and sealed to one of the bottom edges 35 of the bag walls 15, 20 at an end 95 of the second remainder portion 55.
  • Promotional material 100 is printed upon at least one of an upper surface 105 or a lower surface 110 of the removable portion 65 of the strip 45. The promotional material 100 begins and ends within the removable portion 65 of the strip 45.
  • the plastic strip 45 is located within the at least one gusset 75.
  • the removable portion 65 of the strip 45 is removably attached to the first remainder portion 50 with at least one perforation line 115 and is removably attached to the second remainder portion 55 with at least one perforation line 120.
  • the promotional material 100 is selected from the group consisting of coupons, household hints, contests, games and product or service information.
  • a pair of registering front 15 and back 20 walls are provided. The walls 15, 20 are secured together along their top edges 30, first 24 and second 26 side edges, bottom edges 35 and open across at least a portion of their top edges 30.
  • the gusset 75 has top 125 and bottom 130 edges.
  • the top edges 30, 125 of the front wall 15, the back wall 20, and the gusset 75 terminate in an upper seal 135.
  • the bottom edges 35, 130 of the front wall 15, the back wall 20, and the gusset 75 terminate in a lower seal 140.
  • the lower seal 140 is perpendicular to the first 24 and second 26 side edges.
  • a U-shaped cut-out 145 is provided.
  • the U-shaped cut-out 145 is located in an upper portion 150 of the bag 10 and commences at a first point 155 above the upper seal 135 spaced inwardly from the first side edge 24 and extends to a second point 160 above the upper seal 135 spaced inwardly from the second side edge 26.
  • the cut-out 145 extends downwardly toward the lower seal 140, thereby forming an open bag mouth 165 and a pair of bag handles 170.
  • a plastic strip 45 is provided.
  • the plastic strip 45 has first 50 and second 55 remainder portions located at either end 60 of the strip 45 and a removable portion 65 located between the remainder portions 50, 55.
  • the plastic strip 45 is located on at least one of the front 15 and back 20 walls above the at least one gusset 75.
  • the strip 45 is of a length 80 not greater than a length 85 of the gusset 75.
  • the strip 45 is sealed to one of the top edges 30 of the bag walls 15, 20 at an end 90 of the first remainder portion 50 and sealed to one of the bottom edges 35 of the bag walls 15, 20 at an end 95 of the second remainder portion 55.
  • Promotional material 100 is printed upon at least one of an upper surface 105 or a lower surface 110 of the removable portion 65 of the strip 45. The promotional material 100 begins and ends within the removable portion 65 of the strip 45.
  • the plastic strip 45 is located within the at least one gusset 75.
  • the removable portion 65 of the strip 45 is removably attached to the first remainder portion 50 with at least one perforation line 115 and is removably attached to the second remainder portion 55 with at least one perforation line 120.
  • the promotional material 100 is selected from the group consisting of coupons, household hints, contests, games and product or service information.
  • the bags 10 are severed from one another and stacked in a registered bag pack 175.
  • the bags 10 are attached to one another at a perforation line 180 and wound into a roll 185.
  • An apparatus 190 for making plastic shopping bags with registered advertising strip 10, as illustrated in Figures 3 and 4, can be constructed from the following components.
  • a supply of polyethylene material (not shown) is provided.
  • An extruder (not shown) is provided.
  • the extruder produces a continuous tube 205 of polyethylene material 195.
  • a gusseter 210 is provided.
  • the gusseter 210 forms at least one side gusset 75 in the continuous tube 205.
  • a flattener 215 is provided.
  • the flattener 215 flattens the gusseted tube 205.
  • the gusseted tube 205 has a top surface 220, a bottom surface 225, a first side edge 230 and a second side edge 235.
  • a marker (not shown) is provided. The marker places bag reference markers 245 on the continuous tube 205 at a first predetermined interval 250.
  • a roll of plastic strip material 255 is provided.
  • the plastic strip material 255 includes a plurality of plastic strips 45. Each of the strips 45 has first 50 and second 55 remainder portions located at either end 60 of the strip 45 and a removable portion 65 located between the remainder portions 50, 55.
  • the plastic strips 45 have promotional material 100 printed upon at least one of an upper surface 105 or a lower surface 110 of the removable portion 65 of the strips 45 and strip reference markers 260 located upon at least one of an upper surface 265 or a lower surface 270 of the strips 45 at the first predetermined interval 250.
  • An unwind mechanism 272 is provided. The unwind mechanism 272 supports the roll of plastic strip material 255 and modulates the speed at which the plastic strip material 255 is unwound from the roll.
  • An insertion device 275 is provided.
  • the insertion device 275 receives the plastic strip material 255 from the roll located on the unwind mechanism 272.
  • the insertion device 275 directs the plastic strip material 255 into the at least one side gusset 75.
  • a first sensor 280 is provided.
  • the first sensor 280 detects passage of the bag reference markers 245.
  • a second sensor 285 is provided.
  • the second sensor 285 detects passage of the strip reference markers 260.
  • a controller 290 as illustrated in Figure 5, is provided.
  • the controller 290 monitors input from the first 280 and second 285 sensors, operator input 295 and controls the speed at which the plastic strip material 255 is unwound from the roll and directed to the insertion device 275.
  • a sealer 300 as illustrated in Figures 3 and 4, is provided.
  • the sealer 300 seals the first 50 and second 55 remainder portions of the plastic strips 45 to first 305 and second 310 lines orthogonal to the first 230 and second 235 side edges, respectively.
  • the remainder portions 50, 55 of the plastic strips 45 are sealed at intervals 250 determined by the bag reference markers 245, thereby forming upper 320 and lower 325 bag seals and a plurality of bag blanks 330.
  • Each of the bag blanks 330 has a plastic strip 45 located within the at least one gusset 75.
  • the bag reference markers 245 are substantially aligned with the strip reference markers 260 and the removable portion 65 of the strip 45 begins and ends between the upper 320 and lower 325 bag seals.
  • a bag blank cutter 335 as illustrated in Figure 3, is provided.
  • the bag blank cutter 335 severs the bag blanks 330 between an upper bag seal 320 of a first bag blank 330 and a lower bag seal 325 of a second bag blank 330 at a cut line 340.
  • a stacker (not shown) is provided. The stacker arranges a predetermined number of bag blanks 330 into a registered stack 350.
  • a bag opening cutter 355 is provided. The cutter 355 removes a substantially U-shaped section 360 from an upper portion 365 of the bag blanks 330 located in the bag stack 350.
  • the U-shaped section 360 extends from a first point 370 on the cut line 340 spaced inwardly from the first side edge 230, downward toward the lower bag seal 325, across a part of the upper portion 365, and upwardly to a second point 375 on the cut line 340 spaced inwardly from the second side edge 235, thereby forming an open bag mouth 380 and a pair of bag handles 385.
  • the bag reference markers 245 are aligned with the strip reference markers 260, the removable portions 65 of the plastic strips 45 will be registered with respect to the upper 320 and lower 325 bag seals.
  • the insertion device 275 is replaced with an application device 390.
  • the application device 390 receives the plastic strip material 255 from the roll located on the unwind mechanism 272 and directs the plastic strip material 255 on to either of the top surface 220 or the bottom surface 225 of the gusseted tube 205 either above or below the at least one side gusset 75.
  • the sealer 300 seals the first 50 and second 55 remainder portions of the plastic strips 45 to first 305 and second 310 lines orthogonal to the first 230 and second 235 side edges, respectively, at intervals 250 determined by the bag reference markers 245, thereby forming upper 320 and lower 325 bag seals and a plurality of bag blanks 330.
  • Each of the bag blanks 330 has a plastic strip 45 located either above or below the at least one gusset 75.
  • the stacker 345 is replaced with a perforator 395 and a winder 400.
  • the perforator 395 forms a perforation line 405 on the bag blanks 330 between an upper bag seal 320 of a first bag blank 330 and a lower bag seal 325 of a second bag blank 330.
  • the bag winder 400 winds the bags 10 into a roll 410.
  • the insertion device 275 is replaced with an application device 390 while retaining the perforator 395 and the winder 400.
  • the application device 390 receives the plastic strip material 255 from the roll located on the unwind mechanism 272 and directs the plastic strip material 255 on to either of the top surface 220 or the bottom surface 225 of the gusseted tube 205 either above or below the at least one side gusset 75.
  • the sealer 300 seals the first 50 and second 55 remainder portions of the plastic strips 45 to first 305 and second 310 lines orthogonal to the first 230 and second 235 side edges, respectively, at intervals 250 determined by the bag reference markers 245, thereby forming upper 320 and lower 325 bag seals and a plurality of bag blanks 330.
  • Each of the bag blanks 330 has a plastic strip located either above or below the at least one gusset 75.
  • the apparatus 190 for making plastic shopping bags with registered advertising strip 10 includes an operator interface 295.
  • the interface 295 inputs at least bag length, coupon length and coupon offset distance variables.
  • the unwind mechanism 272 includes at least one unwind nip roller 420. The unwind nip roller 420 tensions the plastic strip material 255 and the controller 290 modulates the tensioning.
  • the roll of plastic strip material 255 includes at least two parallel streams 425 of plastic strips 45.
  • the parallel streams 425 are joined to one another at side edges 432 of the streams 425.
  • the apparatus includes a slitter mechanism 430.
  • the slitter mechanism 430 separates the at least two parallel streams 425 of plastic strips 45 into individual streams 425.
  • the apparatus 190 includes at least one tensioning nip roller 435 for each individual stream 425 of plastic strips 45.
  • the apparatus 190 includes a turn bar 440 for at least one of the individual streams 425 of plastic strips 45.
  • the turn bar 440 aligns the individual stream 425 of plastic strips 45 with the bag blanks 330.
  • the apparatus includes a strip perforating mechanism 445.
  • the strip perforating mechanism 445 perforates the plastic strips 45 between the remainder portions 50, 55 located at either end 60 of the strip 45.
  • a method, as illustrated in Figures 4 and 5, for making plastic shopping bags with registered advertising strip 10, includes the steps of: Providing a supply of polyethylene material 195. Extruding a continuous tube 205 of polyethylene material 195. Forming at least one side gusset 75 in the continuous tube 205. Flattening the gusseted tube 205. The gusseted tube 205 has a top surface 220, a bottom surface 225, a first side edge 230 and a second side edge 235.
  • the plastic strip material 255 includes a plurality of plastic strips 45, each of the strips 45 has first 50 and second 55 remainder portions located at either end 60 of the strip 45 and a removable portion 65 located between the remainder portions 50, 55.
  • the plastic strips 45 have promotional material 100 printed upon at least one of an upper surface 105 or a lower surface 110 of the removable portion 65 of the strips 45.
  • Strip reference markers 260 are located on at least one of an upper surface 265 and a lower surface 270 of the strips 45 at the first predetermined interval 250.
  • the unwind mechanism 272 supports the roll of plastic strip material 255. Modulating a speed at which the plastic strip material 255 is unwound from the roll.
  • the insertion device 275 receives the plastic strip material 255 from the roll located on the unwind mechanism 272.
  • Providing a stacker (not shown). Arranging a predetermined number of bag blanks 330 into a registered stack 350.
  • Providing a bag opening cutter 355. Removing a substantially U-shaped section 360 from an upper portion 365 of the bag blanks 330 located in the bag stack 350.
  • the U-shaped section 360 extending from a first point 370 on the cut line 340 spaced inwardly from the first side edge 230, downward toward the lower bag seal 325, across a part of the upper portion 365, and upwardly to a second point 375 on the cut line 340 spaced inwardly from the second side edge 235, thereby forming an open bag mouth 380 and a pair of bag handles 385.
  • the bag reference markers 245 are aligned with the strip reference markers 260, the removable portions 65 of the plastic strips 45 will be registered with respect to the upper 320 and lower 325 bag seals.
  • the insertion device 275 is replaced with an application device 390.
  • the application device 390 receives the plastic strip material 255 from the roll located on the unwind mechanism 272 and the method includes the following additional steps. Directing the plastic strip material 255 on to either the top surface 220 or the bottom surface 225 of the gusseted tube 205 either above or below the at least one side gusset 75.
  • the stacker is replaced with a perforator 395 and a winder 400 and the method includes the following additional steps: Forming a perforation line 405 on the bag blanks 330 between an upper bag seal 320 of a first bag blank 330 and a lower bag seal 325 of a second bag blank 330. Winding the bags 10 into a roll 410.
  • the insertion device 275 is replaced with an application device 390 and the method includes the following additional steps: Receiving the plastic strip material 255 from the roll located upon the unwind mechanism 272. Directing the plastic strip material 255 on to either the top surface 220 or the bottom surface 225 of the gusseted tube 205 either above or below the at least one side gusset 75.
  • the method includes the further step of inputting at least bag length, coupon length and coupon offset distance variables.
  • the method includes the further steps of: Providing a slitter mechanism 430. Separating at least two parallel streams 425 of plastic strips 45 into individual streams 425.
  • the method includes the further steps of: Providing a strip perforating mechanism 445. Perforating the plastic strips 45 between the remainder portions 50, 55 located at either end 60 of the strip 45.
  • plastic shopping bags 10 with promotional strip ad and apparatus 190 and method for making same have been described with reference to particular embodiments. Other modifications and enhancements can be made without departing from the spirit and scope of the claims that follow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Making Paper Articles (AREA)

Abstract

L'invention concerne des sacs à provisions en plastique pourvus de coutures supérieures et inférieures, d'au moins un gousset latéral, d'une bouche de sac ouverte et de poignées supérieures, lesdits sacs présentant des bandes publicitaires attachées. Ces bandes comprennent une partie amovible centrale et une paire de parties restantes au niveau de chaque extrémité de la bande qui sont scellées dans les coutures supérieures et inférieures. Les bandes publicitaires sont inscrites au niveau des coutures supérieures et inférieures, de telle façon que plusieurs coupons, messages ou promotions peuvent tomber à l'intérieur de la partie amovible de la bande. Des perforations permettent de joindre la partie amovible de la bande aux parties restantes. Cette invention a également trait à un appareil permettant d'inscrire des bandes publicitaires sur le sac à provisions en plastique, ledit appareil comportant des marqueurs sur les sacs ou sur les bandes publicitaires, des détecteurs de marqueurs, un dispositif de commande conçu pour faire correspondre la vitesse des bandes publicitaires à celle des découpes de sac, un dispositif de scellement, un dispositif de découpe de sac et un empileur ou un enrouleur.
EP04794540A 2004-08-24 2004-10-07 Sac similaire a un t-shirt a inscription de bande publicitaire, appareil et procede associees Withdrawn EP1786690A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/925,160 US20060045393A1 (en) 2004-08-24 2004-08-24 T-shirt style bag with registered advertising strip, apparatus and method for making same
PCT/US2004/033221 WO2006022760A2 (fr) 2004-08-24 2004-10-07 Sac similaire a un t-shirt a inscription de bande publicitaire, appareil et procede associees

Publications (1)

Publication Number Publication Date
EP1786690A2 true EP1786690A2 (fr) 2007-05-23

Family

ID=35943167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04794540A Withdrawn EP1786690A2 (fr) 2004-08-24 2004-10-07 Sac similaire a un t-shirt a inscription de bande publicitaire, appareil et procede associees

Country Status (6)

Country Link
US (1) US20060045393A1 (fr)
EP (1) EP1786690A2 (fr)
AU (1) AU2004322708A1 (fr)
CA (1) CA2620218A1 (fr)
MX (1) MX2007002321A (fr)
WO (1) WO2006022760A2 (fr)

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US10814577B2 (en) * 2006-08-11 2020-10-27 Gregorio Lim Tan Self opening wide mouth carryout bag pack, apparatus and method of making same
US8915372B2 (en) * 2006-08-11 2014-12-23 Gregorio Lim Tan Self opening bag pack, apparatus and method of making same
IT1394527B1 (it) * 2009-03-20 2012-07-05 Mobert Srl Macchina termosaldatrice per la produzione contemporanea di una pluralita' di rotoli di sacchetti pretagliati e con manici fustellati
US20140138278A1 (en) * 2012-11-20 2014-05-22 Mpt, Inc. Advertising Media for Application to Packaging Materials
WO2014199189A1 (fr) * 2013-06-10 2014-12-18 Cgv Plast Di Cirillo Carmela Appareil pour fractionner, appliquer et pré-inciser au moins une bande continue de ruban adhésif à partir d'une bobine unique, pour une enveloppe ouvrable, pour l'emballage de fleurs
JP5439622B1 (ja) * 2013-07-10 2014-03-12 トタニ技研工業株式会社 ファスナ材進行方向変換装置
ITFI20130180A1 (it) * 2013-08-01 2015-02-02 Amutec S R L Con Socio Unico Un metodo per la produzione di sacchi di plastica attraverso l'avanzamento non continuo di un nastro continuo in plastica e relativo macchinario
HRP20211830T1 (hr) * 2018-12-06 2022-03-18 B&B Verpackungstechnik GmbH Uređaj i način za izradu vrećica od folije

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Also Published As

Publication number Publication date
CA2620218A1 (fr) 2006-03-02
MX2007002321A (es) 2007-10-10
WO2006022760A3 (fr) 2006-05-26
WO2006022760A2 (fr) 2006-03-02
US20060045393A1 (en) 2006-03-02
AU2004322708A1 (en) 2006-03-02

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