# US 11,027,888 B2 · Easy open plastic bags > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,888 B2 - Document ID: US11027888B2 - Status: Granted - Kind: B2 - Application number: 15/933,156 - Filed: 2018-03-22 - Published: 2018-09-27 - Granted: 2021-06-08 - Earliest claimed: 2012-02-13 - Assignees: Polytex Fibers Corporation - Applicants: Polytex Fibers Corporation - Inventors: Jacobo Bazbaz - Web page: https://patentgrep.com/patent/US11027888B2 ## CPC - B65D 29/02: {Sacks with laminated or multiple walls} - B31B 50/81: Forming or attaching accessories, e.g. opening devices, closures or tear strings - B32B 5/024: {Woven fabric} - B32B 27/00: Layered products comprising {a layer of} synthetic resin {(fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18)} - B65D 33/16: End- or aperture-closing arrangements or devices (valves of valve bags {B65D31/14}; closures of filled bags B65D77/10) - B65D 75/5838: {combined with separate fixed tearing means, e.g. tabs} - B65D 75/5844: {the portion of the wall being a narrow strip, e.g. between lines of weakness (B65D75/5838 takes precedence)} - 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 - B31B: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract A woven laminated plastic bag having an easy open feature is provided. The easy open feature is generally defined by a weakened portion in the bag. In various aspects the bag can be fabricated from woven polypropylene and/or polyethylene layer which can be laminated with a film layer, can form a pinch bottom bag, and can have one or both sides include graphics and/or printing. The bag can also provide a top end and/or a bottom end either or both of which provide a discrete area which may contain discrete graphics and/or printing. ## Claims ### Claim 1 A bag comprising: a front wall, a back wall, an interior surface, an exterior surface, a top end, and a bottom end, wherein each of the front wall and the back wall comprise a first layer and a second layer wherein each of the first layer and the second layer comprise polypropylene and the first layer further comprises woven strips; wherein the first layer and the second layer are laminated to one another; wherein the bag further comprises a first plurality of perforations that extend at least partially through the front wall; wherein the first plurality of perforations define a line extending across a portion of the front wall; wherein the bag further comprises a first cover that covers the first plurality of perforations; wherein the first cover comprises a second plurality of perforations that penetrate through at least a portion of the first cover; and wherein the bag further comprises a second cover that covers the second plurality of perforations. ### Claim 2 (depends on 1) The bag according to claim 1, wherein at least one of the first layer and the second layer further comprises oriented polypropylene or biaxially-oriented polypropylene. ### Claim 3 (depends on 1) The bag according to claim 1 wherein the first layer comprises woven strips comprising oriented polypropylene and the second layer comprises a film comprising oriented polypropylene. ### Claim 4 (depends on 1) The bag according to claim 1 further comprising a third layer, wherein the third layer comprises polypropylene and laminates the first layer and second layer to one another. ### Claim 5 (depends on 4) The bag according to claim 4 wherein the third layer further comprises a polymer film comprising oriented polypropylene. ### Claim 6 (depends on 1) The bag according to claim 1, wherein the first cover has a first surface and a second surface and an adhesive on at least a portion of the first surface, the second surface, or both. ### Claim 7 (depends on 1) The bag according to claim 1, wherein at least two of the first plurality of perforations or at least two of the second plurality of perforations comprise parallel lines. ### Claim 8 (depends on 1) The bag according to claim 1, further comprising: a third plurality of perforations extending from an end of at least one of the first plurality of perforations or one of the second plurality of perforations, wherein the third plurality of perforations penetrate in depth through at least one of: a portion of the front wall, a portion of the first cover, and a portion of the second cover. ### Claim 9 (depends on 8) The bag according to claim 8, further comprising a third plurality of perforations extending from a second end of at least one of the first plurality of perforations or one of the second plurality of perforations. ### Claim 10 (depends on 9) The bag according to claim 9, wherein the first plurality of perforations or the second plurality of perforations defines a line. ### Claim 11 (depends on 1) The bag according to claim 1, wherein the first cover comprises a polymer, a film, an adhesive, a paper, or any combination thereof. ### Claim 12 (depends on 11) The bag according to claim 11, wherein the second cover further comprises a polymer, a film, an adhesive, a paper, or any combination thereof. ### Claim 13 (depends on 1) The bag according to claim 1, wherein at least a portion of a bottom end of the back wall extends further than a bottom end of the front wall. ### Claim 14 (depends on 13) The bag according to claim 13 wherein the portion of the bottom end of the back wall that extends further than the bottom end of the front wall is sealed to an outer surface of the bottom end of the front wall. ### Claim 15 (depends on 13) The bag according to claim 13, wherein the bag further comprises: a first side wall having an interior surface, an exterior surface, a top end and a bottom end; and a second side wall having an interior surface, an exterior surface, a top end and a bottom end, wherein the first side wall and the second side wall further comprise gussets. ### Claim 16 (depends on 15) The bag according to claim 15, wherein at least a portion of the bottom end of the back wall extends further than the bottom end of the first side wall and the bottom end of the second side wall; wherein the bottom end of the first side wall and the bottom end of the second side wall extend further than the bottom end of the front wall; and wherein the portion of the bottom end of the back wall that extends further than the bottom end of the first side wall and the bottom end of the second side wall, and the portion of the bottom end of the first side wall and the bottom end of the second side wall that project extend than the bottom end of the front wall are sealed to an outer surface of the bottom end of the front wall. ### Claim 17 (depends on 1) The bag according to claim 1, wherein the top end and the bottom end of the bag are sealed, and wherein the bag comprises at least ten pounds by weight of a filling material. ### Claim 18 (depends on 1) The bag according to claim 1 wherein at least portions of each of the front wall and the back wall comprise printing thereon. ### Claim 19 (depends on 16) The bag according to claim 16, wherein at least a portion of one of the front wall and the back wall projects beyond a corresponding portion of the other, thereby defining a pinch bottom bag at the top end or the bottom end of the bag. ### Claim 20 A bag comprising: a front wall, a back wall, an interior surface, an exterior surface, a top end, and a bottom end, wherein each of the front wall and the back wall comprise a first layer and a second layer; wherein each of the first layer and the second layer comprise polyethylene and the first layer further comprises woven strips; wherein the first layer and the second layer are laminated to one another; wherein the bag further comprises a first plurality of perforations that extend at least partially through the front wall; wherein the first plurality of perforations define a line extending across a portion of the front wall; wherein the bag further comprises a first cover that covers the first plurality of perforations; wherein the first cover comprises a second plurality of perforations that penetrate through at least a portion of the first cover; and wherein the bag further comprises a second cover that covers the second plurality of perforations. ### Claim 21 (depends on 20) The bag according to claim 20, wherein at least one of the first layer and the second layer further comprises oriented polyethylene or biaxially-oriented polyethylene. ### Claim 22 (depends on 20) The bag according to claim 20 wherein the first layer comprises woven strips comprising oriented polyethylene and the second layer comprises a film comprising oriented polyethylene. ### Claim 23 (depends on 20) The bag according to claim 20 further comprising a third layer, wherein the third layer comprises polyethylene and laminates the first layer and second layer to one another. ### Claim 24 (depends on 23) The bag according to claim 23 wherein the third layer further comprises a polymer film comprising oriented polyethylene. ### Claim 25 (depends on 20) The bag according to claim 20, wherein the first cover has a first surface and a second surface and an adhesive on at least a portion of the first surface, the second surface, or both. ### Claim 26 (depends on 20) The bag according to claim 20, wherein at least two of the first plurality of perforations or at least two of the second plurality of perforations comprise parallel lines. ### Claim 27 (depends on 20) The bag according to claim 20, further comprising: a third plurality of perforations extending from an end of at least one of the first plurality of perforations or one of the second plurality of perforations, wherein the third plurality of perforations penetrate in depth through at least one of: a portion of the front wall, a portion of the first cover, and a portion of the second cover. ### Claim 28 (depends on 27) The bag according to claim 27, further comprising a third plurality of perforations extending from a second end of at least one of the first plurality of perforations or one of the second plurality of perforations. ### Claim 29 (depends on 28) The bag according to claim 28, wherein the first plurality of perforations or the second plurality of perforations defines a line. ### Claim 30 (depends on 20) The bag according to claim 20, wherein the first cover comprises a polymer, a film, an adhesive, a paper, or any combination thereof. ### Claim 31 (depends on 30) The bag according to claim 30, wherein the second cover further comprises a polymer, a film, an adhesive, a paper, or any combination thereof. ### Claim 32 (depends on 20) The bag according to claim 20, wherein at least a portion of a bottom end of the back wall extends further than a bottom end of the front wall. ### Claim 33 (depends on 32) The bag according to claim 32 wherein the portion of the bottom end of the back wall that extends further than the bottom end of the front wall is sealed to an outer surface of the bottom end of the front wall. ### Claim 34 (depends on 33) The bag according to claim 33, wherein the bag further comprises: a first side wall having an interior surface, an exterior surface, a top end and a bottom end; and a second side wall having an interior surface, an exterior surface, a top end and a bottom end, wherein the first side wall and the second side wall further comprise gussets. ### Claim 35 (depends on 34) The bag according to claim 34, wherein at least a portion of the bottom end of the back wall extends further than the bottom end of the first side wall and the bottom end of the second side wall; wherein the bottom end of the first side wall and the bottom end of the second side wall extend further than the bottom end of the front wall; and wherein the portion of the bottom end of the back wall that extends further than the bottom end of the first side wall and the bottom end of the second side wall, and the portion of the bottom end of the first side wall and the bottom end of the second side wall that project extend than the bottom end of the front wall are sealed to an outer surface of the bottom end of the front wall. ### Claim 36 (depends on 20) The bag according to claim 20, wherein the top end and the bottom end of the bag are sealed, and wherein the bag comprises at least ten pounds by weight of a filling material. ### Claim 37 (depends on 20) The bag according to claim 20 wherein at least portions of each of the front wall and the back wall comprise printing. ### Claim 38 (depends on 37) The bag according to claim 37, wherein at least a portion of one of the front wall and the back wall projects beyond a corresponding portion of the other, thereby defining a pinch bottom bag at the top end or the bottom end of the bag.