US20020057854A1 - Easy open industrial bag - Google Patents
Easy open industrial bag Download PDFInfo
- Publication number
- US20020057854A1 US20020057854A1 US10/047,668 US4766802A US2002057854A1 US 20020057854 A1 US20020057854 A1 US 20020057854A1 US 4766802 A US4766802 A US 4766802A US 2002057854 A1 US2002057854 A1 US 2002057854A1
- Authority
- US
- United States
- Prior art keywords
- bag
- front wall
- adhesive
- flap
- wall
- 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.)
- Abandoned
Links
Images
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
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/22—Details
- B65D77/30—Opening or contents-removing devices added or incorporated during filling or closing of containers
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
Definitions
- the present invention relates generally to industrial bags, and more particularly, the present invention relates to an easy open industrial bag.
- a common closure is referred to as a pinch bottom where a flap of one wall of the bag is folded over and glued or otherwise secured to another wall of the bag.
- the pinch bottom closure is commonly used in gusseted bags and flat tube bags.
- U.S. Pat. No. 4,480,752 there is disclosed a feature for a pinch bottom bag that facilitates the opening of the bag.
- the feature includes a tab which is bonded inside the bag within one of the side wall gusset folds. A portion of the tab extends out of the interior of the bag and as the bag is folded closed, remains exposed to the exterior of the bag. By pulling on the tab, the pinch bottom closure is opened in an area surrounding the tab.
- a tab is bonded into the bag with a portion extending outwardly from the bag, and the side walls of the bag are formed to include at least one tear line to cause localized tearing of the bag during opening as well as to reduce the effort required to open the bag.
- tear lines may be formed in both the front and back walls of the bag and arranged so as to align and overlap in a double fold closure.
- Disposing the tab within the bag may cause difficulty when the bag is used for particular contents materials. For example, if the bag is to contain pet food, the pet food will typically have a desired fat content. Unless the tab is specially treated, such as coated with silicon or formed from synthetic materials, over time the tab will wick fatty oils from the pet food to the exterior of the bag. The fatty oils make the tab difficult to grasp hindering opening of the bag, may weaken the tab causing it to fail as the bag is opened, may distort printing disposed on the bag and/or the tab, and may further attract insects and rodents. Using silicon coated tabs and or synthetic materials to form the tab presents problems in effectively gluing the bag closed.
- the present invention provides an easy open feature for an industrial bag utilizing a tab disposed on the exterior of the bag in combination with a uniquely glued closure.
- a bag in accordance with a preferred embodiment of the present invention, includes a front wall, a back wall, first and second side walls interconnecting the front wall and the back wall, and an enclosed end defining an interior portion and an exterior portion of the bag.
- the enclosed end includes a flap formed integral with the back wall that is folded over and bonded to the front wall using adhesive.
- a tab is secured to the front wall on the exterior of the bag and is disposed between the flap and the front wall. The tab is detachably secured to the front wall and the adhesive is disposed between the front wall and the flap in a pattern defining an adhesive void adjacent an opening edge of the bag.
- the bag may also include a tab having a first portion disposed between the second flap and the front wall and a second portion extending along the front wall.
- the tab may extend outwardly from beneath the flap, or may end at the edge of the flap.
- the tab may also have a multi-ply construction including a first ply and a second ply.
- the first ply is substantially permanently bonded to the front wall on the exterior of the bag and the second ply is unsecured to the front wall.
- the tab may also include a body portion and a tab portion.
- the body portion is bonded to the front wall and the tab portion extends over an opening edge of the front wall.
- the tab may also include apertures through which the flap is bonded to the front wall.
- the tab may be secured to the front wall using a peel-free adhesive.
- a bag in another aspect of the present invention, includes a front wall, a back wall and first and second side walls interconnecting the front wall and the back wall.
- Each of the front wall, the back wall and the first and second side walls have a multi-ply construction, and the front wall and the first and second side walls each having an end edge.
- the end edges are preferably cut substantially flush, and the back wall has a flap extending from the back wall and beyond the end edges.
- a tab member is releasably secured to the front wall on an exterior portion of the bag and extends from the end edge along the front wall.
- An adhesive is disposed on the flap in a substantially continuous pattern, however, leaving a void area adjacent an opening edge of the bag.
- FIG. 1 is a partial perspective view of a bag according to the present invention with the bag end in a pre-closed configuration
- FIG. 2 illustrates the bag shown in FIG. 1 in a closed configuration
- FIG. 3 illustrates the bag shown in FIG. 2 in a partially open configuration
- FIG. 4 illustrates the bag shown in FIG. 2 fully opened
- FIG. 5 illustrates the bag shown in FIG. 1 and further illustrating an alternate preferred glue pattern for effecting closure of the bag
- FIG. 6 illustrates the bag shown in FIG. 1 and further illustrates an alternate preferred tab member
- FIG. 7 illustrates the bag shown in FIG. 1 in a closed configuration and further illustrates another alternate preferred tab member
- FIG. 8 is cross-section view taken along line 8 - 8 of FIG. 7;
- FIG. 9 illustrates the bag shown in FIG. 1 and further illustrates an alternate preferred tab member
- FIG. 10 is a cross-section view taken along line 10 - 10 of FIG. 9;
- FIG. 11 is an illustration of the bag shown in FIG. 1 in a close configuration and further illustrates another alternate preferred tab member
- FIG. 12 is a partial perspective view of a bag in accordance with an additional alternate preferred embodiment of the present invention.
- FIG. 13 is a partial perspective view of a bag in accordance with yet another alternate preferred embodiment of the present invention.
- a bag 10 includes a front wall 12 , a back wall 14 and first and second side walls (one shown as 16 ) defining an interior 15 and an exterior 17 of bag 10 .
- First and second side walls 16 preferably have a gusseted configuration, although the present invention is readily adaptable to flat-tube bags. Also, while described in terms of a single fold pinch bottom bag, one of ordinary skill in the art will appreciate that the present invention has application to double-fold bags and square end bags.
- Front wall 12 , back wall 14 and first and second side walls 16 are each shown as single ply material; however, as will be appreciated from the discussion of additional preferred embodiments below, multi-layer laminate materials may also be used with the present invention.
- bag 10 includes an open end 18 , and front wall 12 , and first and second side walls 16 each include an end edge 20 and 22 , respectively.
- a flap 24 is formed extending from back wall 14 and beyond end edges 20 and 22 .
- a tab member 26 is secured to front wall 12 on the exterior of bag 10 , extending from edge 20 along front wall 12 substantially perpendicular to edge 20 .
- a second end of bag 10 (not shown) may be pre-closed or remain open.
- a bag may be manufactured with an enclosed end including an easy open feature in accordance with the present invention, and the second end is used for filling and is subsequently permanently sealed by the end-user.
- the end-user may use open end 18 for filling, and then seal bag 10 in accordance with the present invention once filled.
- Flap 24 folds along line 28 to form an enclosed end (best seen in FIG. 2).
- a portion 27 of front wall 12 may also be fold along line 29 and retained beneath flap 24 .
- flap 24 engages front wall 12 and is secured thereto by adhesive 32 , which is applied in a substantially continuous pattern extending along flap 24 between first and second side walls 16 adjacent edge 25 .
- Tab member 26 extends outwardly along front wall 12 from beneath flap 24 .
- Tab member 26 may be secured to front wall 12 using a relatively strong adhesive, or tab member 26 may be secured to front wall 12 using an adhesive having high shear strength but low tensile strength. Such adhesives are frequently referred to as peel-free adhesives.
- Peel-free adhesives are advantageous in the present application in view of the fact the most of the stresses to which bag 10 is exposed during folding and use of bag 10 are in shear. Thus, the peel-free adhesive is very effective for retaining tab member 26 to front wall 12 , while still permitting easy opening of bag 10 .
- tab member 26 is pulled upwardly and forwardly as indicated generally by arrow “A.” Pulling tab member 26 in the direction of arrow “A” causes a tearing of flap 24 along tear lines 30 forming a tear away portion 28 . The separation of portion 28 from flap 24 permits the opening of bag 10 as shown in FIG. 4. Tab member 26 is retained to portion 28 by adhesive 32 and some delamination of flap 24 and front wall 12 occurs in areas 34 . Tab member 26 may be pulled from front wall 12 by separation from its adhesive if a peel-free adhesive is used or as a result of delamination of an outer surface of front wall 12 if a stronger adhesive is used.
- Tab member 26 is shown positioned towards one of first and second sides 16 , which permits forming a pour spout as shown in FIG. 4.
- tab member 26 may be positioned anywhere along flap 24 , such as at a center portion to form a center spout.
- Tab member 26 may further be positioned on an exterior of the bag, but within one of the gusset folds of side walls 16 .
- the configuration of tab member 26 shown in the Figures is representative of a possible tab configuration, and virtually any size and shape of tab members may be employed with the present invention.
- the present invention has been found to provide easier opening by modifying how flap 24 is secured to front wall 12 .
- adhesive strip 32 is applied as a substantially continuous strip along flap 24 and preferably closely adjacent to edge 25 . This ensures that when flap 24 is folded and engaged with front wall 12 , adhesive 32 does not bridge opening 18 which may cause edge 20 to bond to back wall 14 substantially impairing opening of bag 10 .
- an additional substantially continuous strip of adhesive 40 may be applied to front wall 12 , displaced from edge 20 .
- Tab member 26 is shown disposed over adhesive 40 , but it will be appreciated that tab member 26 may be first applied to front wall 12 and adhesive 40 applied over tab member 26 .
- adhesive 32 By positioning adhesive 32 adjacent edge 25 and adhesive 40 displaced from edge 20 , upon sealing bag 10 by folding flap 24 into engagement with front wall 12 , neither adhesive 32 nor adhesive 40 bridges opening 18 .
- This “adhesive void” adjacent opening 18 ensures that bag 10 may be easily opened once tab member 26 is used to tear open portion 28 of flap 24 .
- portion 27 may be coated with silicon or similar material. In this embodiment, adhesive coming into contact with the coating disposed on portion 27 will not substantially adhere effectively providing the desired adhesive void adjacent opening 18 .
- the adhesive void may be limited to a local area adjacent tab member 26 .
- adhesive 32 and 40 may be applied in a pattern such that it is adjacent and does bridge opening 18 away from tab member 26 but forms the desired adhesive void in the vicinity of tab member 26 .
- silicon or other coatings may be applied to front wall 12 in local areas where opening of bag 10 is desired.
- tab member 26 itself with silicon or a similar material to inhibit bonding of flap 24 to tab member 26 , and hence front wall 12 , adjacent opening 18 for forming the adhesive void.
- the adhesive void may not be acceptable in all application of bag 10 because the adhesive void weakens bag 10 .
- the weakening of bag 10 created by the adhesive void is desirable for facilitating opening the bag, but it may adversely effect using the bag in certain applications.
- a tab member 42 is formed with a plurality of apertures 44 .
- Apertures 44 permit bonding of flap 24 to front wall 12 in the area of apertures 44 and through tab member 42 . Permitting bonding of flap 24 to front wall 12 through apertures 44 substantially strengthens bag 10 over providing an adhesive void for the entirety of tab member 42 .
- Providing an adhesive void also may not be suitable for applications in which sifting leakage is a problem.
- the adhesive void provides a path through which fine particles may leak from bag 10 and/or may provide an entry point for insects or contaminants.
- a multi-ply tab member 48 including a first ply 50 and a second ply 52 is used in conjunction with bag 10 .
- Second ply 52 is substantially permanently bonded to front wall 12 .
- First ply 50 is secured to second ply 52 using a peel-free adhesive.
- Tab member 48 is secured to front wall 12 with a portion 53 overlapping edge 20 and a second portion 55 extending outwardly along front wall 12 from beneath flap 24 .
- first ply 50 is separated from second ply 52 and pulled upwardly causing tearing of flap 24 adjacent to tab member 48 . Because second ply 52 is bonded to front wall 12 , first ply 50 is bonded to second ply 52 and flap 24 is bonded first ply 50 , substantially complete, sift resistant sealing of bag 10 is provided. By providing portion 53 overlapping edge 20 , an effective adhesive void is created adjacent opening 18 facilitating opening of bag 10 .
- a tab member 54 which also provides resistance to sift leakage, includes a body portion 56 , a first tab portion 57 and a second tab portion 58 .
- Tab member 54 is positioned to front wall 12 such that second tab portion 58 overlaps edge 20 .
- Second tab portion 58 is not bonded to front wall 12 , and in this manner second tab portion 58 forms the adhesive void that facilitates opening of bag 10 .
- Body portion 56 extends along front wall 12 from end edge 20 and substantially perpendicular thereto and includes adhesive for securing tab member 54 to front wall 12 .
- First tab portion 57 is also unsecured to front wall 12 , and it permits easy grasping of tab member 54 for opening bag 10 .
- tab member 54 is made from label stock having a label substrate with adhesive on one side and a release backing covering the adhesive.
- the release backing is preferably die cut or otherwise segmented such that a portion adjacent tab portion 56 may be removed to expose the adhesive, while portions adjacent each of first and second tab portions 57 and 58 remain secured to the substrate.
- the adhesive may then be advantageously used to secure tab member 54 to front wall 12 as described.
- the label stock may be further advantageously printed with opening instructions, coupon information and the like.
- tab member 60 is disposed substantially completely under flap 24 . This arrangement prevents inadvertent removal of the tab member and/or inadvertent opening of bag 10 .
- a user places a finger or fingers under flap 24 in the area of tab 60 and lifts upwardly tearing flap 24 .
- Tab member 60 is preferably secured to front wall 12 using a peel-free adhesive which allows easy separation of tab member 60 from front wall 12 allowing the user to insert a finger underneath tab member 60 for opening the bag.
- a bag 110 includes a front wall 112 , a back wall 114 and first and second side walls (one shown as 116 ) defining and interior 115 and exterior 117 of bag 110 .
- Each of front wall 112 , back wall 114 and first and second side walls 116 are of a multi-ply construction, and first and second side walls 116 further preferably have a gusseted configuration.
- Bag 110 includes an open end 118 , and front wall 112 , and first and second side walls 116 each include end edges 120 and 122 , respectively.
- a flap 124 is formed extending from back wall 114 and beyond end edges 120 and 122 .
- a tab member 126 is secured to front wall 112 on the exterior of bag 110 , extending from end edge 120 .
- Flap 124 folds along line 128 to form an enclosed end.
- flap 124 engages front wall 112 and is secured thereto by adhesive 132 , which is applied in a substantially continuous pattern extending along a first lamination 142 and potentially each lamination of flap 124 between first and second side walls 116 .
- a substantially continuous pattern of adhesive 140 is also applied to a lamination 146 of front wall 112 .
- adhesive 140 is applied to an outermost lamination 146 of front wall 112 displaced from edge 120 , leaving one or more of the inner laminations 148 and 150 adhesive free.
- adhesive 132 is preferably applied to outer most laminations, e.g., laminations 142 and 144 , and adjacent edge 125 . As will be appreciated, this arrangement of adhesive 132 and 140 assures adhesive does not bridge opening 118 thereby providing an adhesive void that facilitates opening of bag 110 .
- a bag 210 includes a front wall 212 , a back wall 214 and first and second side walls (one shown as 216 ). Each of front wall 212 , back wall 214 and first and second side walls 216 are shown of single ply construction, but may be of a multi-ply construction, and first and second side walls 216 further preferably have a gusseted configuration. Bag 210 includes an open end 218 , and front wall 212 , and first and second side walls 216 each include an end edge 220 and 222 , respectively. A flap 224 is formed extending from back wall 214 and beyond end edges 220 and 222 . A tab member 226 is secured to front wall 212 on the exterior of bag 210 , extending from end edge 220 .
- Flap 224 folds along line 228 to form an enclosed end.
- flap 224 engages front wall 212 and is secured thereto by adhesive 232 , which is applied in a substantially continuous pattern extending along flap 224 between first and second side wall 216 and adjacent edge 225 .
- End edges 222 of first and second side walls 216 have “long edges” or stepped plies 240 and 242 .
- Adhesive 244 and 246 is applied to each of stepped plies 240 and 242 .
- stepped plies 240 and 242 extend sufficiently far along flap 224 that during application of adhesive 232 , adhesive is also applied to each.
- stepped plies 240 and 242 are bonded to front wall 212 securing the gusset portion of first and second side walls 216 to further strengthen bag 210 , while tab member 226 provides for easy opening of bag 210 in accordance with the present invention.
- the present invention has been described in terms of several preferred embodiments directed to pinch bottom bags. It will be appreciated that the present invention may be adapted to other bag types apart from pinch bottom bags. The present invention may also be incorporated into closed bag ends as provided from the manufacturing facility, and/or may be incorporated into the bag by the end-user after filling. Still further the tab members may be printed to provide opening instructions, discount coupons, and the like.
- the above-described preferred embodiments are intended to be illustrative of the broad scope of the invention, which is defined by the sub-joined claims.
Abstract
An easy open industrial bag includes a tab member secured to a front wall on the exterior of the bag. The tab member is secured between the front wall and a flap formed on a back wall of the bag and folded over and secured to the front wall for closing the bag. The flap is secured with an adhesive disposed in a pattern providing an adhesive void at an opening edge of the bag.
Description
- The present invention relates generally to industrial bags, and more particularly, the present invention relates to an easy open industrial bag.
- Industrial bags, often made from multi-ply kraft paper, synthetic sheets, and combinations thereof, are closed in numerous ways. A common closure is referred to as a pinch bottom where a flap of one wall of the bag is folded over and glued or otherwise secured to another wall of the bag. The pinch bottom closure is commonly used in gusseted bags and flat tube bags.
- Once closed it becomes necessary at some point to open the bag. In bags that were sewn shut, it is possible to open the bag by undoing the stitching. Sewing generally requires substantial additional processing equipment and processing expense, and thus is no longer a preferred closure method. Providing a glued closure for a pinch bottom bag provides for an easily automated process that is inexpensive and yields a secure sift resistant closure. However, glued closures are difficult to open without cutting the bag, or substantially tearing the walls of the bag. The walls of the bag, of course, are designed to resist tearing, which further makes opening of the bag difficult, and cutting requires having a cutting tool to be handy.
- In U.S. Pat. No. 4,480,752 there is disclosed a feature for a pinch bottom bag that facilitates the opening of the bag. The feature includes a tab which is bonded inside the bag within one of the side wall gusset folds. A portion of the tab extends out of the interior of the bag and as the bag is folded closed, remains exposed to the exterior of the bag. By pulling on the tab, the pinch bottom closure is opened in an area surrounding the tab.
- In commonly-assigned U.S. patent application Ser. No. 08/768,389, the disclosure of which is hereby expressly incorporated herein by reference, an easy opening feature for industrial bags is also described. A tab is bonded into the bag with a portion extending outwardly from the bag, and the side walls of the bag are formed to include at least one tear line to cause localized tearing of the bag during opening as well as to reduce the effort required to open the bag. In particular embodiments of the bag, tear lines may be formed in both the front and back walls of the bag and arranged so as to align and overlap in a double fold closure.
- Disposing the tab within the bag may cause difficulty when the bag is used for particular contents materials. For example, if the bag is to contain pet food, the pet food will typically have a desired fat content. Unless the tab is specially treated, such as coated with silicon or formed from synthetic materials, over time the tab will wick fatty oils from the pet food to the exterior of the bag. The fatty oils make the tab difficult to grasp hindering opening of the bag, may weaken the tab causing it to fail as the bag is opened, may distort printing disposed on the bag and/or the tab, and may further attract insects and rodents. Using silicon coated tabs and or synthetic materials to form the tab presents problems in effectively gluing the bag closed.
- The present invention provides an easy open feature for an industrial bag utilizing a tab disposed on the exterior of the bag in combination with a uniquely glued closure.
- In accordance with a preferred embodiment of the present invention, a bag includes a front wall, a back wall, first and second side walls interconnecting the front wall and the back wall, and an enclosed end defining an interior portion and an exterior portion of the bag. The enclosed end includes a flap formed integral with the back wall that is folded over and bonded to the front wall using adhesive. A tab is secured to the front wall on the exterior of the bag and is disposed between the flap and the front wall. The tab is detachably secured to the front wall and the adhesive is disposed between the front wall and the flap in a pattern defining an adhesive void adjacent an opening edge of the bag.
- The bag may also include a tab having a first portion disposed between the second flap and the front wall and a second portion extending along the front wall.
- In alternate preferred embodiments, the tab may extend outwardly from beneath the flap, or may end at the edge of the flap.
- The tab may also have a multi-ply construction including a first ply and a second ply. The first ply is substantially permanently bonded to the front wall on the exterior of the bag and the second ply is unsecured to the front wall.
- The tab may also include a body portion and a tab portion. The body portion is bonded to the front wall and the tab portion extends over an opening edge of the front wall.
- The tab may also include apertures through which the flap is bonded to the front wall.
- The tab may be secured to the front wall using a peel-free adhesive.
- In another aspect of the present invention, a bag includes a front wall, a back wall and first and second side walls interconnecting the front wall and the back wall. Each of the front wall, the back wall and the first and second side walls have a multi-ply construction, and the front wall and the first and second side walls each having an end edge. The end edges are preferably cut substantially flush, and the back wall has a flap extending from the back wall and beyond the end edges. A tab member is releasably secured to the front wall on an exterior portion of the bag and extends from the end edge along the front wall. An adhesive is disposed on the flap in a substantially continuous pattern, however, leaving a void area adjacent an opening edge of the bag.
- These and other advantages and features of the present invention will become apparent to one of ordinary skill in the bag making art from the following detailed description of several preferred embodiments of the present invention with reference to the attached drawings wherein like reference numerals are used to identify like elements throughout and in which:
- FIG. 1 is a partial perspective view of a bag according to the present invention with the bag end in a pre-closed configuration;
- FIG. 2 illustrates the bag shown in FIG. 1 in a closed configuration;
- FIG. 3 illustrates the bag shown in FIG. 2 in a partially open configuration;
- FIG. 4 illustrates the bag shown in FIG. 2 fully opened;
- FIG. 5 illustrates the bag shown in FIG. 1 and further illustrating an alternate preferred glue pattern for effecting closure of the bag;
- FIG. 6 illustrates the bag shown in FIG. 1 and further illustrates an alternate preferred tab member;
- FIG. 7 illustrates the bag shown in FIG. 1 in a closed configuration and further illustrates another alternate preferred tab member;
- FIG. 8 is cross-section view taken along line8-8 of FIG. 7;
- FIG. 9 illustrates the bag shown in FIG. 1 and further illustrates an alternate preferred tab member;
- FIG. 10 is a cross-section view taken along line10-10 of FIG. 9;
- FIG. 11 is an illustration of the bag shown in FIG. 1 in a close configuration and further illustrates another alternate preferred tab member;
- FIG. 12 is a partial perspective view of a bag in accordance with an additional alternate preferred embodiment of the present invention; and
- FIG. 13 is a partial perspective view of a bag in accordance with yet another alternate preferred embodiment of the present invention.
- With reference to FIG. 1, a
bag 10 includes afront wall 12, aback wall 14 and first and second side walls (one shown as 16) defining aninterior 15 and anexterior 17 ofbag 10. First andsecond side walls 16 preferably have a gusseted configuration, although the present invention is readily adaptable to flat-tube bags. Also, while described in terms of a single fold pinch bottom bag, one of ordinary skill in the art will appreciate that the present invention has application to double-fold bags and square end bags.Front wall 12,back wall 14 and first andsecond side walls 16 are each shown as single ply material; however, as will be appreciated from the discussion of additional preferred embodiments below, multi-layer laminate materials may also be used with the present invention. - With continuing reference to FIG. 1,
bag 10 includes anopen end 18, andfront wall 12, and first andsecond side walls 16 each include anend edge flap 24 is formed extending fromback wall 14 and beyond end edges 20 and 22. Atab member 26 is secured tofront wall 12 on the exterior ofbag 10, extending fromedge 20 alongfront wall 12 substantially perpendicular to edge 20. A second end of bag 10 (not shown) may be pre-closed or remain open. In preferred embodiments, a bag may be manufactured with an enclosed end including an easy open feature in accordance with the present invention, and the second end is used for filling and is subsequently permanently sealed by the end-user. Of course, the end-user may useopen end 18 for filling, and then sealbag 10 in accordance with the present invention once filled. -
Flap 24 folds alongline 28 to form an enclosed end (best seen in FIG. 2). Aportion 27 offront wall 12 may also be fold alongline 29 and retained beneathflap 24. In the closed configuration,flap 24 engagesfront wall 12 and is secured thereto by adhesive 32, which is applied in a substantially continuous pattern extending alongflap 24 between first andsecond side walls 16adjacent edge 25.Tab member 26 extends outwardly alongfront wall 12 from beneathflap 24.Tab member 26 may be secured tofront wall 12 using a relatively strong adhesive, ortab member 26 may be secured tofront wall 12 using an adhesive having high shear strength but low tensile strength. Such adhesives are frequently referred to as peel-free adhesives. Peel-free adhesives are advantageous in the present application in view of the fact the most of the stresses to whichbag 10 is exposed during folding and use ofbag 10 are in shear. Thus, the peel-free adhesive is very effective for retainingtab member 26 tofront wall 12, while still permitting easy opening ofbag 10. - Referring to FIG. 3,
tab member 26 is pulled upwardly and forwardly as indicated generally by arrow “A.” Pullingtab member 26 in the direction of arrow “A” causes a tearing offlap 24 alongtear lines 30 forming a tear awayportion 28. The separation ofportion 28 fromflap 24 permits the opening ofbag 10 as shown in FIG. 4.Tab member 26 is retained toportion 28 byadhesive 32 and some delamination offlap 24 andfront wall 12 occurs inareas 34.Tab member 26 may be pulled fromfront wall 12 by separation from its adhesive if a peel-free adhesive is used or as a result of delamination of an outer surface offront wall 12 if a stronger adhesive is used. -
Tab member 26 is shown positioned towards one of first andsecond sides 16, which permits forming a pour spout as shown in FIG. 4. Of course,tab member 26 may be positioned anywhere alongflap 24, such as at a center portion to form a center spout.Tab member 26 may further be positioned on an exterior of the bag, but within one of the gusset folds ofside walls 16. Moreover, it should be noted that the configuration oftab member 26 shown in the Figures is representative of a possible tab configuration, and virtually any size and shape of tab members may be employed with the present invention. - The present invention has been found to provide easier opening by modifying how
flap 24 is secured tofront wall 12. With continued reference to FIG. 1, as notedadhesive strip 32 is applied as a substantially continuous strip alongflap 24 and preferably closely adjacent to edge 25. This ensures that whenflap 24 is folded and engaged withfront wall 12, adhesive 32 does not bridge opening 18 which may causeedge 20 to bond to backwall 14 substantially impairing opening ofbag 10. - As shown in FIG. 5, an additional substantially continuous strip of adhesive40 may be applied to
front wall 12, displaced fromedge 20.Tab member 26 is shown disposed over adhesive 40, but it will be appreciated thattab member 26 may be first applied tofront wall 12 and adhesive 40 applied overtab member 26. By positioning adhesive 32adjacent edge 25 and adhesive 40 displaced fromedge 20, upon sealingbag 10 by foldingflap 24 into engagement withfront wall 12, neither adhesive 32 nor adhesive 40 bridges opening 18. This “adhesive void”adjacent opening 18 ensures thatbag 10 may be easily opened oncetab member 26 is used to tearopen portion 28 offlap 24. In an alternative preferred embodiment,portion 27 may be coated with silicon or similar material. In this embodiment, adhesive coming into contact with the coating disposed onportion 27 will not substantially adhere effectively providing the desired adhesive voidadjacent opening 18. - For a bag to be opened such as shown in FIG. 4, the adhesive void may be limited to a local area
adjacent tab member 26. In this manner, adhesive 32 and 40 may be applied in a pattern such that it is adjacent and does bridge opening 18 away fromtab member 26 but forms the desired adhesive void in the vicinity oftab member 26. Similarly, silicon or other coatings may be applied tofront wall 12 in local areas where opening ofbag 10 is desired. Still further, it is possible tocoat tab member 26 itself with silicon or a similar material to inhibit bonding offlap 24 totab member 26, and hencefront wall 12,adjacent opening 18 for forming the adhesive void. - The adhesive void may not be acceptable in all application of
bag 10 because the adhesive void weakensbag 10. The weakening ofbag 10 created by the adhesive void is desirable for facilitating opening the bag, but it may adversely effect using the bag in certain applications. As shown in FIG. 6, atab member 42 is formed with a plurality ofapertures 44.Apertures 44 permit bonding offlap 24 tofront wall 12 in the area ofapertures 44 and throughtab member 42. Permitting bonding offlap 24 tofront wall 12 throughapertures 44 substantially strengthensbag 10 over providing an adhesive void for the entirety oftab member 42. As a further enhancement, and to ensure tearing offlap 24 in the region oftab member 26, it may be desirable to provide tear lines, perforations or weakenedareas 46 inflap 24 to ensure tearingadjacent tab member 26. - Providing an adhesive void also may not be suitable for applications in which sifting leakage is a problem. The adhesive void provides a path through which fine particles may leak from
bag 10 and/or may provide an entry point for insects or contaminants. With reference to FIG. 7 and FIG. 8 amulti-ply tab member 48 including afirst ply 50 and asecond ply 52 is used in conjunction withbag 10.Second ply 52 is substantially permanently bonded tofront wall 12. First ply 50 is secured tosecond ply 52 using a peel-free adhesive.Tab member 48 is secured tofront wall 12 with aportion 53 overlappingedge 20 and asecond portion 55 extending outwardly alongfront wall 12 from beneathflap 24. Toopen bag 10,first ply 50 is separated fromsecond ply 52 and pulled upwardly causing tearing offlap 24 adjacent totab member 48. Becausesecond ply 52 is bonded tofront wall 12,first ply 50 is bonded tosecond ply 52 andflap 24 is bondedfirst ply 50, substantially complete, sift resistant sealing ofbag 10 is provided. By providingportion 53 overlappingedge 20, an effective adhesive void is createdadjacent opening 18 facilitating opening ofbag 10. - With reference to FIG. 9 and FIG. 10, a
tab member 54, which also provides resistance to sift leakage, includes abody portion 56, afirst tab portion 57 and asecond tab portion 58.Tab member 54 is positioned tofront wall 12 such thatsecond tab portion 58overlaps edge 20.Second tab portion 58 is not bonded tofront wall 12, and in this mannersecond tab portion 58 forms the adhesive void that facilitates opening ofbag 10.Body portion 56 extends alongfront wall 12 fromend edge 20 and substantially perpendicular thereto and includes adhesive for securingtab member 54 tofront wall 12.First tab portion 57 is also unsecured tofront wall 12, and it permits easy grasping oftab member 54 for openingbag 10. Preferably,tab member 54 is made from label stock having a label substrate with adhesive on one side and a release backing covering the adhesive. The release backing is preferably die cut or otherwise segmented such that a portionadjacent tab portion 56 may be removed to expose the adhesive, while portions adjacent each of first andsecond tab portions tab member 54 tofront wall 12 as described. The label stock may be further advantageously printed with opening instructions, coupon information and the like. - Referring to FIG. 11, still another
alternate tab member 60 is shown.Tab member 60 is disposed substantially completely underflap 24. This arrangement prevents inadvertent removal of the tab member and/or inadvertent opening ofbag 10. Toopen bag 10 adapted withtab member 60, a user places a finger or fingers underflap 24 in the area oftab 60 and lifts upwardly tearingflap 24.Tab member 60 is preferably secured tofront wall 12 using a peel-free adhesive which allows easy separation oftab member 60 fromfront wall 12 allowing the user to insert a finger underneathtab member 60 for opening the bag. - With reference now to FIG. 12, a
bag 110 includes afront wall 112, aback wall 114 and first and second side walls (one shown as 116) defining and interior 115 andexterior 117 ofbag 110. Each offront wall 112,back wall 114 and first andsecond side walls 116 are of a multi-ply construction, and first andsecond side walls 116 further preferably have a gusseted configuration.Bag 110 includes anopen end 118, andfront wall 112, and first andsecond side walls 116 each include end edges 120 and 122, respectively. Aflap 124 is formed extending fromback wall 114 and beyond end edges 120 and 122. Atab member 126 is secured tofront wall 112 on the exterior ofbag 110, extending fromend edge 120. -
Flap 124 folds alongline 128 to form an enclosed end. In the closed configuration,flap 124 engagesfront wall 112 and is secured thereto by adhesive 132, which is applied in a substantially continuous pattern extending along afirst lamination 142 and potentially each lamination offlap 124 between first andsecond side walls 116. A substantially continuous pattern of adhesive 140 is also applied to alamination 146 offront wall 112. Preferably adhesive 140 is applied to anoutermost lamination 146 offront wall 112 displaced fromedge 120, leaving one or more of theinner laminations laminations bag 110. - With reference to FIG. 13, a
bag 210 includes afront wall 212, a back wall 214 and first and second side walls (one shown as 216). Each offront wall 212, back wall 214 and first andsecond side walls 216 are shown of single ply construction, but may be of a multi-ply construction, and first andsecond side walls 216 further preferably have a gusseted configuration.Bag 210 includes anopen end 218, andfront wall 212, and first andsecond side walls 216 each include anend edge 220 and 222, respectively. Aflap 224 is formed extending from back wall 214 and beyond end edges 220 and 222. Atab member 226 is secured tofront wall 212 on the exterior ofbag 210, extending fromend edge 220. -
Flap 224 folds alongline 228 to form an enclosed end. In the closed configuration,flap 224 engagesfront wall 212 and is secured thereto by adhesive 232, which is applied in a substantially continuous pattern extending alongflap 224 between first andsecond side wall 216 and adjacent edge 225. End edges 222 of first andsecond side walls 216 have “long edges” or steppedplies Adhesive plies plies flap 224 that during application ofadhesive 232, adhesive is also applied to each. In the closed configuration, steppedplies front wall 212 securing the gusset portion of first andsecond side walls 216 to further strengthenbag 210, whiletab member 226 provides for easy opening ofbag 210 in accordance with the present invention. - The present invention has been described in terms of several preferred embodiments directed to pinch bottom bags. It will be appreciated that the present invention may be adapted to other bag types apart from pinch bottom bags. The present invention may also be incorporated into closed bag ends as provided from the manufacturing facility, and/or may be incorporated into the bag by the end-user after filling. Still further the tab members may be printed to provide opening instructions, discount coupons, and the like. The above-described preferred embodiments are intended to be illustrative of the broad scope of the invention, which is defined by the sub-joined claims.
Claims (20)
1. A bag comprising a front wall, a back wall, first and second side walls interconnecting the front wall and the back wall, defining an interior and an exterior of the bag, and an enclosed end;
the enclosed end comprising a flap formed integral with the back wall and further being folded over and engaging the front wall and secured thereto by an adhesive;
a tab secured to the front wall on the exterior and disposed within the enclosed end between the flap and the front wall, the tab being detachably secured to the front wall; and
the adhesive disposed in pattern having an adhesive void adjacent an opening edge of the front wall.
2. The bag of claim 1 , wherein a first portion of the tab is disposed between the flap and the front wall and a second portion extends along the front wall.
3. The bag of claim 3 , wherein the first portion overlaps the opening edge.
4. The bag of claim 1 , wherein the tab extends outwardly from beneath the flap.
5. The bag of claim 1 , wherein the tab comprises a first ply and a second ply, the first ply being bonded to the front wall and the second ply being unsecured to the front wall.
6. The bag of claim 5 , wherein the second ply overlaps the opening edge.
7. The bag of claim 1 , wherein the tab is secured to the front wall by a peel-free adhesive.
8. The bag of claim 1 , wherein the tab is formed to include at least one aperture and wherein the flap is bonded to the front wall within the at least one aperture.
9. The bag of claim 1 , wherein the adhesive pattern comprises first portion of adhesive disposed on the flap and a second portion of adhesive disposed on the front wall.
10. A bag comprising a front wall, a back wall and first and second side walls interconnecting the front wall and the back wall, defining an interior and an exterior of the bag, each of the front wall, the back wall and the first and second side walls having a multi-ply construction, the front wall and the first and second side walls each having an end edge, wherein each of the end edges are cut substantially flush, and the back wall has a flap extending from the back wall and beyond the end edges;
a tab member releasably secured to the front wall on the exterior and extending from the end edge; and
an adhesive disposed on the flap and extending in a pattern extending substantially continuously from the first side wall to the second side wall and adjacent a flap edge to define an adhesive void adjacent an opening edge of the front wall.
11. The bag of claim 9 , wherein tab member is secured to the front wall by an peel-free adhesive.
12. The bag of claim 10 , wherein the tab member extends from the end edge of the front wall a length in excess of a length of the flap.
13. The bag of claim 10 , wherein the tab member includes a portion that overlaps the opening edge.
14. The bag of claim 10 , wherein the first and second side walls comprise stepped-plies extending from end edge.
15. The bag of claim 10 , the tab member comprising a first ply and a second ply, the first ply being substantially permanently bonded to the front wall and the second ply being unsecured to the front wall.
16. The bag of claim 15 , wherein the second ply overlaps the opening edge.
17. The bag of claim 10 , the tab member comprising having a first portion disposed between the flap and the front wall and a second portion extending outwardly from beneath the flap and along the front wall.
18. The bag of claim 17 , the first portion formed to include at least one aperture z and the adhesive being disposed within the aperture.
19. The bag of claim 10 , further comprising adhesive disposed on the front wall in a pattern extending substantially continuously from first side wall to the second side wall and displaced from the opening edge to define an adhesive void adjacent the opening edge.
20. A bag comprising a front wall, a back wall and first and second side walls interconnecting the front wall and the back wall defining an interior portion and an exterior portion of the bag,
the front wall having an opening edge;
the back wall having a flap extending from the back wall and beyond the opening edge;
a tab member secured to the front wall on the exterior of the bag by a peel-free adhesive, the tab member extending from substantially adjacent the opening edge along the front wall substantially perpendicular to the opening edge; and
adhesive applied in a pattern to the front wall and to the flap, wherein a first portion of the adhesive is disposed on the front wall and extends in a pattern substantially continuously between the first side wall and the second side wall and displaced from the opening edge, and wherein a second portion of the adhesive is disposed on the flap and extends in a pattern substantially continuously from the first side wall to the second side wall and adjacent a flap edge, wherein the first portion of adhesive and the second portion of adhesive cooperate to secure the flap to the front wall and to define an adhesive void adjacent the opening.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/047,668 US20020057854A1 (en) | 1998-12-07 | 2002-01-15 | Easy open industrial bag |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/207,091 US6338572B1 (en) | 1998-12-07 | 1998-12-07 | Easy open industrial bag |
US10/047,668 US20020057854A1 (en) | 1998-12-07 | 2002-01-15 | Easy open industrial bag |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/207,091 Continuation US6338572B1 (en) | 1998-12-07 | 1998-12-07 | Easy open industrial bag |
Publications (1)
Publication Number | Publication Date |
---|---|
US20020057854A1 true US20020057854A1 (en) | 2002-05-16 |
Family
ID=22769171
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/207,091 Expired - Fee Related US6338572B1 (en) | 1998-12-07 | 1998-12-07 | Easy open industrial bag |
US10/047,668 Abandoned US20020057854A1 (en) | 1998-12-07 | 2002-01-15 | Easy open industrial bag |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/207,091 Expired - Fee Related US6338572B1 (en) | 1998-12-07 | 1998-12-07 | Easy open industrial bag |
Country Status (1)
Country | Link |
---|---|
US (2) | US6338572B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120052161A1 (en) * | 2010-09-01 | 2012-03-01 | Graphic Packaging International, Inc. | Bag With Refastenable Foldover Closure And Pour Spout |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7178671B2 (en) * | 2000-11-15 | 2007-02-20 | Kimberly-Clark Worldwide, Inc. | Package |
US6681934B2 (en) | 2000-11-15 | 2004-01-27 | Kimberly-Clark Worldwide, Inc. | Package having visual indicator |
US6913146B2 (en) * | 2001-11-09 | 2005-07-05 | Kimberly-Clark Worldwide, Inc. | Interlabial pad packaging |
US6708823B2 (en) | 2000-11-15 | 2004-03-23 | Kimberly-Clark Worldwide, Inc. | Master package |
US6705465B2 (en) | 2000-11-15 | 2004-03-16 | Kimberly-Clark Worldwide, Inc. | Package for feminine care articles |
US6746736B2 (en) * | 2001-03-02 | 2004-06-08 | Actinic, Inc. | Oil and grease resistant coating composition |
US6601706B2 (en) | 2001-04-19 | 2003-08-05 | Kimberly-Clark Worldwide, Inc. | Package for absorbent articles |
US6969196B2 (en) * | 2003-03-07 | 2005-11-29 | Exopack-Technology, Llc | Bag having reclosable seal and associated methods |
US20050024221A1 (en) * | 2003-08-02 | 2005-02-03 | Pamela Jamison-Lenz | Self-contained alert device |
US20050100252A1 (en) * | 2003-11-12 | 2005-05-12 | Rivlin Jonathan B. | Heat-sealed multi-wall flexible container |
US20070130889A1 (en) * | 2004-02-20 | 2007-06-14 | Healthcare Media Technologies, Inc. | Disposable cover for a pillow speaker or the like |
US8142075B2 (en) * | 2004-07-14 | 2012-03-27 | Shaw Raymond R | Foldable blank in use with a bag material for securing and retaining articles of evidence in tamper-evident fashion and including side configured evidence re-entry locations with additional tamper evident reclosure and recording features |
US10099812B2 (en) * | 2004-07-14 | 2018-10-16 | Raymond R. Shaw | Rigid corrugated evidence retaining enclosure with tamper evident and combined access and reclosure/recordal indicia capabilities |
US8118199B2 (en) * | 2006-02-22 | 2012-02-21 | Todd Wilbur | Disposable dispenser |
US20080085065A1 (en) * | 2006-10-05 | 2008-04-10 | Nowak Michael R | Package with folded handle and method for making same |
US9346216B2 (en) * | 2007-06-08 | 2016-05-24 | International Paper Company | Easy-opening ream wrap |
WO2010132250A2 (en) * | 2009-05-15 | 2010-11-18 | Coating Excellence International Llc | Bag having sealable gussets |
US8591110B2 (en) * | 2009-11-25 | 2013-11-26 | Exopack, Llc | Bags having adhesive drying structures and related methods |
US8568842B2 (en) | 2010-12-28 | 2013-10-29 | International Paper Company | Film for wrapping, methods of making and using |
US9272808B2 (en) * | 2012-03-13 | 2016-03-01 | Multi Packaging Solutions, Inc. | Packaging and integrated utility item |
GB2523532B (en) * | 2013-12-03 | 2018-08-01 | Essentra Packaging & Security Ltd | Packaging |
Family Cites Families (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA634126A (en) | 1962-01-09 | F. Borchardt Lester | Flour package closure | |
USRE22490E (en) | 1944-05-30 | rambold | ||
US220510A (en) | 1879-10-14 | Improvement in paper pouches | ||
US218650A (en) | 1879-08-19 | Improvement in packets or sample-envelopes | ||
US2071745A (en) | 1933-06-09 | 1937-02-23 | Benjamin C Betner Company | Bag |
GB546782A (en) | 1940-11-18 | 1942-07-30 | Harry Franklin Waters | Improvements in or relating to containers for commodities and packages thereof |
US2400406A (en) * | 1944-06-21 | 1946-05-14 | Albert L Godoy | Closure for envelopes and the like |
GB582372A (en) | 1944-09-25 | 1946-11-14 | Robinson E S & A Ltd | Improvements in or relating to bags made of paper, cellulose or the like materials |
DE803267C (en) | 1949-11-22 | 1951-04-02 | Karl Decker | Folding bag |
US3074610A (en) | 1960-04-05 | 1963-01-22 | William A Pugh | Gable type beverage container with straw |
USRE28317E (en) | 1962-01-29 | 1975-01-28 | Gusseted type ea.gs | |
USRE28318E (en) | 1962-01-29 | 1975-01-28 | Goodrich gusseted type bags | |
US3308996A (en) | 1965-05-13 | 1967-03-14 | Daisy Mfg Co | Bb carton |
US3687356A (en) | 1965-06-28 | 1972-08-29 | St Regis Paper Co | Gusseted type bags |
US3545668A (en) | 1969-02-10 | 1970-12-08 | Continental Can Co | Easy opening and reclosable bag |
US3557853A (en) | 1969-05-01 | 1971-01-26 | Mary Henning Jones | Sanitary napkin holder |
US3565328A (en) | 1969-05-15 | 1971-02-23 | Bemis Co Inc | Multiwall pinch closure bag with opening feature |
US4142667A (en) | 1977-07-25 | 1979-03-06 | Runo William R | Sealable longitudinal sleeveless valve bag |
US4744466A (en) | 1981-12-08 | 1988-05-17 | Chase Bag Company | Quick opening pinch seal bag |
US4480752A (en) | 1982-08-09 | 1984-11-06 | Bemis Company, Inc. | Pinch closure bags with opening feature and method of manufacturing them |
US4441613A (en) | 1982-09-01 | 1984-04-10 | Champion International Corporation | Container with resealable closure |
US4512479A (en) | 1982-09-20 | 1985-04-23 | Champion International Corporation | Container with easy opening closure |
US4483445A (en) | 1982-09-30 | 1984-11-20 | Champion International Corporation | Bag with easy opening closure and handle |
US4498192A (en) | 1983-01-28 | 1985-02-05 | Mid America Machine Corp. | Bag having an overlapped closure and method of fabricating the same |
US4515273A (en) | 1983-03-30 | 1985-05-07 | Bemis Company, Inc. | Bag with tab and method of forming |
US4557385A (en) | 1984-02-23 | 1985-12-10 | Union Camp Corporation | Bag with easy open line of perforations |
EP0160619A3 (en) | 1984-04-30 | 1987-09-02 | SIG Schweizerische Industrie-Gesellschaft | Reclosable package |
US4577761A (en) | 1985-03-26 | 1986-03-25 | International Paper Company | Easy-open pinch closure bag |
US4955981A (en) | 1985-10-24 | 1990-09-11 | Velcro Industries B.V. | Reclosable bag having hook and loop sealing strips |
US4946289A (en) | 1987-02-06 | 1990-08-07 | Union Camp Corporation | Reclosable open mouth bag |
US4871265A (en) | 1988-05-18 | 1989-10-03 | Minnesota Mining & Manufacturing Company | Resealable bag |
CH675711A5 (en) | 1988-05-20 | 1990-10-31 | Polyfilm Ag | Reclosable bag with closure flap - has tearable tongue on opening edge opposite flap |
DE3915192A1 (en) | 1989-05-10 | 1990-11-15 | Focke & Co | METHOD AND DEVICE FOR PRODUCING (FILM) PACKAGING AND (FILM) PACKAGING |
DE69000855D1 (en) * | 1989-05-30 | 1993-03-18 | Medway Packaging Ltd | FLEXIBLE CONTAINER. |
DE4322520C2 (en) | 1993-07-06 | 1997-04-30 | Windmoeller & Hoelscher | Multi-layer sack or bag with bottom |
EP0659151B1 (en) * | 1993-07-08 | 1997-10-29 | Teich Aktiengesellschaft | Tear-off package with pull tab |
US5855434A (en) | 1997-01-06 | 1999-01-05 | Menasha Corp. | Package reclosure label and package |
US5833368A (en) | 1997-06-12 | 1998-11-10 | Kraft Foods, Inc. | Pull tab opening system for beverage container |
US6048100A (en) | 1999-03-10 | 2000-04-11 | Industrial Label Corp. | Resealable closure for a bag |
-
1998
- 1998-12-07 US US09/207,091 patent/US6338572B1/en not_active Expired - Fee Related
-
2002
- 2002-01-15 US US10/047,668 patent/US20020057854A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120052161A1 (en) * | 2010-09-01 | 2012-03-01 | Graphic Packaging International, Inc. | Bag With Refastenable Foldover Closure And Pour Spout |
Also Published As
Publication number | Publication date |
---|---|
US6338572B1 (en) | 2002-01-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6241390B1 (en) | Recloseable easy-open industrial bag and tab for use therewith | |
US6338572B1 (en) | Easy open industrial bag | |
US5918799A (en) | Carton, carton blank and method for forming the carton | |
US6328472B1 (en) | Bag apparatus with reclosable pour spout | |
US6478465B1 (en) | Multiwall bag with peelable opening | |
US4441613A (en) | Container with resealable closure | |
US4062486A (en) | Carton | |
EP0392224B1 (en) | Carton for paper tissues | |
EP0790938B1 (en) | A carrier bag | |
US4480752A (en) | Pinch closure bags with opening feature and method of manufacturing them | |
CA2013076C (en) | (foil) pack, especially for paper tissues | |
JPS62502679A (en) | Highly secure self-sealing mailing containers | |
US4634008A (en) | Container made out of a flat material like paper, cardboard, etc. with a ridged-seam closure, especially a parallelepipedal container for liquid and made out of paper, plastic or composite | |
US6162158A (en) | Method of fabricating a sleeve label with multilayered integral flaps | |
US6599016B1 (en) | Pinch bottom bag with tear strip | |
US9428305B2 (en) | Envelope seal strip | |
US20050047686A1 (en) | Resealable packaging bag | |
DE3835721C2 (en) | ||
US6047882A (en) | Box blanks containing easy-open tabs | |
JPH02296643A (en) | Folding box | |
US6213642B1 (en) | Paper bag with tear strip having indicia | |
US3327925A (en) | Bag construction | |
US3485438A (en) | Bonding arrangement for plies of multiply bags | |
US6328471B1 (en) | Pinch bottom bag with easy open feature | |
EP0400826B1 (en) | Flexible container |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
|
AS | Assignment |
Owner name: BANK OF AMERICA, N.A., TEXAS Free format text: SECURITY AGREEMENT;ASSIGNORS:HOOD COMPANIES, INC.;ATLAS ROOFING CORPORATION;HOOD PACKAGING CORPORATION;AND OTHERS;REEL/FRAME:025839/0040 Effective date: 20101210 |