WO2012094773A1 - Sachet à coin incurvé concave - Google Patents

Sachet à coin incurvé concave Download PDF

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Publication number
WO2012094773A1
WO2012094773A1 PCT/CN2011/000038 CN2011000038W WO2012094773A1 WO 2012094773 A1 WO2012094773 A1 WO 2012094773A1 CN 2011000038 W CN2011000038 W CN 2011000038W WO 2012094773 A1 WO2012094773 A1 WO 2012094773A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
pouch
sealing
edge
volume
Prior art date
Application number
PCT/CN2011/000038
Other languages
English (en)
Inventor
Gautam Bhattacharjee
Original Assignee
The Procter & Gamble Company
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 The Procter & Gamble Company filed Critical The Procter & Gamble Company
Priority to PCT/CN2011/000038 priority Critical patent/WO2012094773A1/fr
Priority to PCT/CN2011/002016 priority patent/WO2012094791A1/fr
Priority to CN2011800645769A priority patent/CN103415446A/zh
Priority to JP2013547788A priority patent/JP2014502585A/ja
Priority to RU2013130652/12A priority patent/RU2013130652A/ru
Priority to MX2013008079A priority patent/MX354094B/es
Priority to EP11855833.7A priority patent/EP2663504A4/fr
Priority to RU2017107256A priority patent/RU2669741C1/ru
Priority to BR112013016169A priority patent/BR112013016169A2/pt
Publication of WO2012094773A1 publication Critical patent/WO2012094773A1/fr
Priority to ZA2013/04725A priority patent/ZA201304725B/en

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
    • 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
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
    • B65D75/12—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by flattening and heat-sealing
    • 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
    • B65D33/001—Blocks, stacks or like assemblies of bags
    • 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
    • B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials
    • B65D75/44—Individual packages cut from webs or tubes
    • B65D75/48—Individual packages cut from webs or tubes containing liquids, semiliquids, or pastes, e.g. cushion-shaped packages
    • 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
    • B65D75/54—Cards, coupons, or other inserts or accessories
    • B65D75/56—Handles or other suspension means
    • B65D75/566—Hand holes or suspension apertures
    • 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
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible

Definitions

  • the present invention relates to pouches. Specifically, the present invention relates to sealed pouches formed from a film material.
  • Pouches are typically formed of a laminate or a film and may be used for holding many types of items such as food, shampoos, detergents, medicines, etc. In order to prevent them from leaking, they are often sealed on all sides to form a fixed volume to contain a product, for example a granular detergent. However it is always a challenge to balance pouch waste and strength against bursting and leakage. The strength of a seal is directly proportional to the sealing area itself. If the pouch is sealed with too much sealing area on the sides, then the given volume per area of film is smaller, leading to wasted film. However, if the sealing area is too narrow, then the pouch will easily burst if dropped.
  • a pouch is sealed with a straight seal forming approximately a 90° angle. While this is an efficient means of sealing the top, it has now been found that this leads to easy puncture of the pouch's corner in response to a sudden impact, such as when the pouch is dropped, when something else is dropped onto the pouch, etc. Such a sudden impact could occur at any time prior to opening for use, such as during the filling/manufacturing process, shipping, storage, transportation, etc. Such an undesirable puncture leads to waste, messiness, product loss, etc. and in some cases, a customer may even refuse to purchase a product in a punctured pouch.
  • the present invention relates to a pouch having a sheet containing at least one layer of a film material.
  • the sheet forms a tube that is closed with a seal to form a volume.
  • the seal contains a first edge and the sheet contains a second edge in connected relation to the first edge.
  • a curved seal joins the first edge with the second edge.
  • a sealing jaw contains a sealing arm and a receiving arm.
  • the sealing arm contains a sealing area further containing a first edge-forming element and a curved seal-forming element adjoining the first edge-forming element.
  • the first edge-forming element forms a curved seal adjacent to the first edge-forming element.
  • a method for sealing a pouch includes the steps of providing a sheet, forming a tube having a leading edge, sealing the leading edge to form a leading edge seal, filling the tube with a predetermined amount of a product, sealing the tube to form a trailing edge seal, and cutting the tube after the trailing edge seal to form a pouch.
  • the leading edge seal and the trailing edge seal form a volume therebetween and the volume contains the product.
  • At least one of the leading edge seal or trailing edge seal contains a first edge and a curved seal adjoining the first edge.
  • the invention can significantly reduce puncturing at the corners by blunting the force when, for example, the filled pouch is dropped.
  • Fig. 1 is a front view of an embodiment of the pouch herein;
  • Fig. 2 is a cut-away view of the pouch of Fig. 1 , as seen along line 2-2;
  • Fig. 3 is a front view of an existing comparative pouch
  • Fig. 4 is a front view of an existing comparative pouch
  • Fig. 5 is a front view of an existing comparative pouch
  • Fig. 6 is a front view of an embodiment of the sealing arm according to the invention herein;
  • Fig. 7 is a front view of an embodiment of the receiving arm according to the invention herein;
  • Fig. 8 is a front view of an embodiment of the pouch herein;
  • Fig. 9A is a partial front view of an embodiment of the pouch herein.
  • Fig. 9B is a partial front view of an embodiment of the pouch herein.
  • the figures herein are not necessarily drawn to scale.
  • fabric enhancer includes a composition intended to provide an improved scent, softness, anti-static benefit, and/or shape-retention benefits to a fabric, such as a fabric conditioner, and/or a fabric softener. Such a fabric enhancer is typically intended to function in the rise cycle of a laundering process.
  • This disclosure relates to a pouch having a sheet containing at least one layer of a film material.
  • the sheet forms a tube that is closed with a seal to form a volume.
  • the seal contains a first edge and a second edge adjoining the first edge.
  • the first edge forms a curved seal with the second edge.
  • This disclosure also relates to methods and equipment for making such a pouch.
  • Fig. 1 is a front view of an embodiment of the pouch, 100, containing a sheet, 120, formed into a tube (see Fig. 2 at 142).
  • the pouch is formed of a sheet which is in turn formed from at least one film material typically selected from the group consisting of polyamide (nylon), polyethylene, polypropylene, ethyl-vinyl-acetate, poly-4- methylpentene-1, a microporous membrane, and a combination thereof; or polyamide (nylon), linear low-density polyethylene, an oriented polypropylene, polyethylene terephthalate, and a combination thereof.
  • softer and more stretchy film materials also may reduce rupturing, and therefore extrusion lamination, co-extrusion lamination, and blends of film materials, such as polyethylene and polyethylene terephthalate are useful herein.
  • the film material may also be affixed to and/or contain a metal therein, and/or be a metalized film.
  • Film materials are well known in the art and may further contain resins, laminates, printed artwork, additives (i.e., UV blockers, antimicrobials, dyes, pigments, etc.), etc. Suitable film materials are available from various suppliers worldwide such as 3M Company (St. Paul, Minnesota, USA), Du Pont Co. (Wilmington, Delaware, USA), Toppan Insatsu Co. (Tokyo, Japan), Gelman Sciences Company (Ann Arbor, Michigan, USA), and many other suppliers worldwide.
  • the sheet herein may contain either a single layer or contain multiple layers of the same, or different film material(s), so long as it remains sealable.
  • the sheet is typically from about 15 ⁇ to about 220 ⁇ , or from about 20 ⁇ to about 200 ⁇ , or from about 25 ⁇ to about 160 ⁇ thick.
  • Each individual film material may be oriented, or random as desired.
  • Multiple layers of film materials may be joined together to form a sheet with multiple properties and/or benefits.
  • the sheet, 120 may then be formed into a pouch, 100, by pulling and/or stretching the sheet, 120, around a forming tube (not shown) to form a tube out of the sheet, 120.
  • the tube is formed by sealing the edges of the sheet, 120, in any direction such as the machine direction at any point or continuously, and/or by sealing the edges in the cross direction at either the leading edge and/or the trailing edge.
  • the forming tube doubles as a filling tube, through which the product to be contained in the pouch is then filled into the tube (see Fig. 2 at 142).
  • the sheet is pulled or advanced in the machine direction (A), and the sealing jaw (see Fig. 6 at 150) simultaneously seals and cuts the trailing portion of the tube (see Fig.
  • Autopacking machines Machinery and techniques for forming such filled pouches are often referred to as "autopacking machines” and are well known in the art and are available from multiple suppliers around the world. Autopacking machines are also often described in the industry as inline packing and sealing machines, and/or form-fill-seal (FFS) machines.
  • FFS form-fill-seal
  • the sheet, 120 is sealed in the machine direction (A) to form a fin seal
  • the seal, 122 is a leading edge seal, 122', and contains a first edge, 128, and a second edge, 130, The first edge, 128, and the second edge, 130, form a curved seal, 132, therebetween.
  • all of the 4 corners of the pouch contain a curved seal, 132, and the curved seal has a radius, r, which defines the curvature of the curved seal.
  • the radius, r, of the curved seal is typically greater than about 3 mm, or from about 5 mm to about 20 cm, or from about 5 cm to about 20 cm.
  • the curved seal, 132 is concavely-curved, meaning that the center, c, of the radius, r, is in the volume, 134, that contains the product (not shown), rather than the center, c, being located in the seal, 120 (compare, for example, Fig. 5), or even outside of the pouch, 100.
  • the pouch contains a plurality of corners, or from about 3 corners to about 6 corners, or from about 4 corners to about 5 corners, or about 4 corners, and each corner contains a curved seal.
  • the radius of each curved seal is about the same. In an alternative embodiment herein, the radius of at least 2 corners, or from about 2 corners to about 4 corners, is different.
  • typical pouches contain a right angle, or even an acute angle at the corners where the leading edge seal and/or the trailing edge seal meets the edge of the standard pouch (see, Figs. 3-5). It is now believed that many punctures of standard pouches (see Figs. 3-5), such as those containing granular laundry detergents, is caused by a small amount of granular product that accumulates in the corner of the pouch, and may contain a little air or other granular products behind it - which forms a dart like sharp corner and when the pouch receives an impact, from, for example, dropping, falling, another pouch hitting it, etc. the small amount of granular product is forced at a relatively high velocity towards the corner.
  • the force of the plurality of moving granules is concentrated to a single point in the corner.
  • These multiple, high-velocity impacts may weaken the film material and/ or even cause the body or surface taking the impact to burst.
  • the cumulative impacts to the material in the corner potentially result in a tearing of the film from within, and cause the film material at the pouch body to fail, resulting in a pouch that leaks from the body.
  • the pouch herein contains a corner area, 134, where the sheet, 120, is sealed with a curved seal, 132.
  • a curved seal 132.
  • the curved blunts the force of the plurality of moving granules.
  • the curved seal distributes this force over a greater area, instead of concentrating it like a right or acute angle may do.
  • a typical pouch has approximately a rectangular or square 2-dimentional face, and therefore the pouch edges, 136, will still typically form right angles, ⁇ .
  • Such pouches are the most common and the easiest to make.
  • the curved seal, 132 is adjacent to a first edge, 128, formed by the seal, 122, this means that for a typical pouch, 100, herein as shown in Fig. 1 the second edge, 130, is typically formed by the edge, 136, of the pouch, 100.
  • the leading edge, 124 and the trailing edge, 138 may contain similar seals, 120, including similar curved seals, 132.
  • the trailing edge seal, 122 contains a first edge, 128, a second edge, 130, and a curved seal, 132.
  • the order of the trailing edge and the leading edge may be reversed, as compared to Fig. 1.
  • the trailing edge, 138 also contains a plurality of handle holes, 140, to allow easier carrying of the pouch, 100.
  • the pouch contains at least 1 handle hole, or from about 1 handle hole to about 5 handle holes; or from about 2 to about 3 handle holes, or about 2 handle holes.
  • the handle holes are typically centered above the pouch's center of gravity in order to make carrying easier. Without intending to be limited by theory, it is believed that a single handle hole is typically most convenient for the user; Thus in an embodiment herein the pouch contains 1 handle hole. However, if a fin seal, 126, is present, then cutting such a single handle hole increases the wear and tear of the cut blade(s) on the sealing arm (see Fig. 7 at 160). Having an even number of handle holes can reduce the need to cut through the fin seal, however, having 4 or more handle holes is confusing to the user. Accordingly, in an embodiment herein the pouch contains 2 handle holes.
  • Fig. 2 is a cut-away view of the pouch, 100, in Fig. 1, as seen along line 2-2.
  • the sheet, 120 has been formed into a tube, 142, by joining the sheet, 120 to itself at the fin seal, 126.
  • This tube, 142 is also sealed at the far end by the seal, 122, that then defines a volume, 144.
  • the volume, 144 can contain a product (not shown) therein to protect it from spillage, moisture, the outside atmosphere, etc.
  • the pouch is formed in what is commonly known in the art as a "pillow pouch” or a "pillow bag”.
  • the pouch may be formed into other pouches such as gusset bags, wicket bags, standup bags, etc., it is believed that the puncture problem described herein is particularly prominent in pillow bags. Accordingly, in an embodiment of the invention, the pouch is a pillow bag.
  • the product (not shown) to be filled into the pouch typically has a bulk density of at least
  • the product is typically a granular product; or a fine granular product, such as a granular product having a number-median particle size of from about 10 ⁇ to about 5 mm.
  • the fine granular product is a granular detergent, a granular fertilizer, a granular fabric enhancer, a granular mineral, and/or a granular medicine; or a granular laundry detergent, and/or a granular fabric enhancer.
  • the volume, 144 may be either airtight or may allow air to flow into and or out of the volume, 144.
  • the volume is airtight (or substantially airtight) once all the seals are in formed and place; only upon puncture thereof is air and/or the granular product easily let into or let out of the volume.
  • Such an airtight pouch is typical of current bags containing, for example, a granular laundry detergent, as described in the examples.
  • the pouch may allow air to pass out of the volume, by, for example having a valve, a seal design allowing air to pass therethrough (see, e.g., US Patent Publication No. 2009/226573 Al to Gonzales, et.
  • the volume typically ranges from (when sealed) at least 500 mL, or from about 500 mL to about 100 L, or from about 800 mL to about 60 L, or from about 1 L to about 30 L, or from about 1.5 L to about 20 L.
  • the pouch will contain both the product as well as air (or another type of gas) therein, because without air in the package (i.e., a vacuum-packed package), the product does not move, and therefore problem does not exist.
  • the pouch comprises air therein, and the product in the pouch is not vacuum-packed.
  • Fig. 3 shows a front view of an existing pouch, 100', lacking a curved seal at each volume corner, 146.
  • the pouch, 100' is a typical pillow bag having a fin seal, 126, and seals, 122, at the leading edge, 124, and the trailing edge, 138.
  • the edge, 136, and the seal, 122 form a typical angle, ⁇ , of substantially 90°. Typically, this angle is repeated at each of the 4 volume corners, 146.
  • Fig. 4 shows a front view of an existing comparative pouch, 100', having a substantially continuous seal, 122, all around the perimeter thereof.
  • a pouch, 100' is typically formed of two separate sheets, 120, 120', of film material, sealed at all the edges, 136. to form a volume, 144, therein.
  • Such a pouch, 100' also typically has an angle, ⁇ , of substantially 90° where the seal, 122, forms a volume corner, 146. Typically, this angle is repeated at each of the 4 volume corners, 146.
  • Fig. 5 shows a front view of an existing comparative pouch, 100', with a convexly- curved seal, 148, at each of the volume corners, 146.
  • This embodiment was allegedly created to solve a similar puncture problem as described herein; however, it was not successful.
  • the center, c, of the radius, r is located on the seal, 122, and not on the volume, 144.
  • Fig. 6 shows a front view of an embodiment of a sealing arm, 150, of the present invention.
  • the sealing arm, 150, and the receiving arm are opposed to each other, either permanently or temporarily, to form a sealing jaw (not shown).
  • the sealing arm, 150 contains a sealing area, 152, for forming the seal (see Fig. 1 at 122).
  • the sealing area, 152 further contains a first edge-forming element, 154, connected to a curved seal-forming element, 156.
  • the curved seal-forming element, 156 .
  • the sealing arm, 150 contains a heating element, 158, on the back side of the sealing arm, 150, that keeps the sealing area, 152, hot enough to melt the sheet (see Fig. 1 at 120).
  • a heating element, 158 on the back side of the sealing arm, 150, that keeps the sealing area, 152, hot enough to melt the sheet (see Fig. 1 at 120).
  • the seal is formed by heat sealing and/or ultrasonic sealing; or heat sealing.
  • the sealing area, 152 terminates in a cut blade, 160, that cuts the pouch (see Fig. 1 at 100) at the same time the sealing area, 152, seals the sheet(s) (see Fig. 1 at 120) together.
  • the cut blade, 160 may be replaced with a line of needles or a line of intermittent cut blades, to make, for example, a perforation.
  • Other methods and elements for making a line of weakness are also known in the art.
  • the cut blade(s) should be of sufficient structural integrity, and durability to both penetrate all layers of the pouch completely, and also be oriented to easily release the finished pouch after the seal and perforation is made.
  • the cut blade is from about 1 cm to about 10 ⁇ , or from about 5 mm to about 20 ⁇ , or from about 2 mm to about 40 ⁇ in height, as measured perpendicularly from the surface of the sealing arm, 150.
  • the cutting blade may be straight, jagged, curved, etc. as desired.
  • the cut blade may be perpendicular to the surface of the sealing arm, or may be angled in the machine direction.
  • a cut blade that is angled in the direction of the package flow may more quickly release the finished pouch, so as to reducing jamming of the autopacking machine caused by a failure of the finished pouch to drop away from the sealing arm.
  • a plurality of sealing jaws may be used such that, for example, a sealing jaw may be present to seal the top of the pouch and cut it away, while a separate but adjacent sealing jaw may simultaneously seal the bottom of the next pouch.
  • the sealing arm, 150 also contains optional sealing ridges, 162, which may provide textured seals. Such textured seals may be desirable in some instances to produce, for example, an easier to grip seal, to enhance seal strength, aesthetic reasons, etc.
  • the sealing jaw is designed so that it can cut a handle in the seal by, for example including a handle cutting element.
  • a handle cutting element may also be formed by, for example, one or more cut blades.
  • Fig. 7 is a front view of an embodiment of a receiving arm, 170, of the present invention.
  • the receiving arm, 170 complements the sealing arm (Fig. 6 at 150), and is a mirror image thereof, containing a complementary sealing area, 152, which matches with the sealing arm's sealing area, 152 (see Fig. 6).
  • the receiving arm, 170 contains a cut channel, 172, which is typically a concave indentation or depression in the surface of the receiving arm, 170, that allows the cut blade(s) (Fig. 6 at 160), etc. to punch through the sheets and form the respective cut, perforation, etc.
  • the receiving arm, 170 also contains sealing ridges, 162, to complement those on the sealing arm (Fig. 6 at 150).
  • the cut blade(s) is releasably attached to the sealing arm, so that when it wears out it may be removed, sharpened and/or replaced without having to fabricate an entire new sealing arm.
  • the sealing arm and the receiving arm are typically each independently formed of an appropriate durable material for their uses herein, such as, for example, a metal, a ceramic, a plastic, and a combination thereof.
  • a sealing jaw intended for heat sealing should be both strong and conduct heat well and may be formed of, for example, copper, brass, steel, or iron, aluminum, etc.
  • Impulse and induction sealing methods are known in the art and are useful herein. Based on this disclosure, a sealing arm and a receiving arm according to the present invention may be custom made by various suppliers and/or machine shops around the world.
  • FIG. 8 shows a front view of an embodiment of the pouch, 100, herein containing a single curved seal, 132, having a relatively large radius, r, across the entire leading edge, 124, and a single curved seal, 132, having a relatively large radius, r, across the entire trailing edge, 138.
  • a single curved seal having the same center and radius also forms both the curved seal of the leading edge and the trailing edge.
  • Fig. 9A shows a partial front view of an embodiment of the pouch, 100, containing multiple curved seals, 132, 132', at the same volume corner, 146.
  • the seal, 122 forms a first curved seal, 132, having center, c, and radius, r, at the pouch edge, 136.
  • the seal also forms a second curved seal, 132', having a different center, c', and radius, r'.
  • Both curved seals, 132, and 132' are convex, as their centers, c and c', are in the volume, 144.
  • Fig. 9B shows a partial front view of an embodiment of the pouch, 100, containing multiple curved seals, 132, 132', at the same volume corner, 146.
  • the seal, 122 forms a first curved seal, 132, having center, c, and radius, r, at the pouch edge, 136.
  • the seal also forms a second curved seal, 132', having a different center, c', and radius, r'.
  • the center, c", of the convexly-curved seal, 148 is located on the seal, 122.
  • the invention is combined with additional techniques known in the art, such as a laser-cut, a half-cut, a score line, embossing, etc. and the known methods and machinery therefor.
  • a reclosing technology is combined with the invention herein, to allow easy and efficient reclosing of the pouch after opening.
  • reclosing technologies are also especially beneficial with larger-sized pouches.
  • Typical reclosing technologies are known in the art and include plastic pressure-sensitive zippers, hook and loop fastening systems, zipper systems, adhesive strips and patches, clips and snaps, locking systems, etc.
  • EP Patent No. 1 409 366 Bl to Camargo-Parodi, et al. granted on June 21, 2006; and EP Patent Application No. 071 19454.2 To Rogers, filed on October 29, 2007.
  • Pouches according to Fig. 1 and Fig. 2 are formed on a VFFS machine from a sheet using sealing jaws similar to that of Figs. 6-7.
  • the VFFS machine creates all seals by heating up the sealing jaw to create thermal bonding between the separate sheets.
  • the sheet is a three layer laminate of the film materials polyethylene terepthalate, a metallic film (like MYLAR®), and polyethylene.
  • the sheet is provided on a roll which feeds into the FFS machine and is stretched onto an area where the tube is formed by sealing a fin seal in the machine direction.
  • the tube has a leading edge which is sealed to form a leading edge seal using the sealing jaws according to Figs. 6-7.
  • a predetermined weight (-1.7 kg) of a granular laundry detergent is filled into and flows down the tube and the tube is sealed using the sealing jaws of Figs. 6-7 to form a filled pillow pouch containing granular laundry detergent. The process then repeats itself for the next pouch.
  • Comparative pouches according to Fig. 3 using similar materials are formed on a standard VFFS machine, employing a standard set of sealing jaws. These comparative pouches have substantially 90° angles at all of the volume corners.
  • Bursting is tested by dropping individual bags from a height of 1.2 m 3 times on three different sides and then also by dropping then from a height of 1.2 m 3 times packed in poly woven bags on 3 different faces. The bag is also dropped on another bag keeping the corner landing on the face of the other bag lying on ground. The observations were also made when one bag free falls from conveyer belt height to the Poly woven bag at the end of line.

Abstract

L'invention porte sur un sachet (100) présentant une feuille (120) contenant au moins une couche d'un matériau en film. La feuille forme un tube (142) qui est fermé avec un scellement étanche (122) afin de former un volume (144). Le scellement étanche (122) contient un premier bord (128) et la feuille contient un second bord (130) en relation reliée avec le premier bord droit (128). Un scellement étanche incurvé (132) réunit le premier bord (128) au second bord (130). L'invention porte également sur une mâchoire de scellement étanche (150) et sur un procédé pour former le sachet.
PCT/CN2011/000038 2011-01-10 2011-01-10 Sachet à coin incurvé concave WO2012094773A1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
PCT/CN2011/000038 WO2012094773A1 (fr) 2011-01-10 2011-01-10 Sachet à coin incurvé concave
PCT/CN2011/002016 WO2012094791A1 (fr) 2011-01-10 2011-12-02 Sachet ayant des coins incurvés de façon concave
CN2011800645769A CN103415446A (zh) 2011-01-10 2011-12-02 具有凹曲拐角的小袋
JP2013547788A JP2014502585A (ja) 2011-01-10 2011-12-02 凹面状角部を有するパウチ
RU2013130652/12A RU2013130652A (ru) 2011-01-10 2011-12-02 Пакет с выгнутыми закругленными углами
MX2013008079A MX354094B (es) 2011-01-10 2011-12-02 Bolsa con esquinas curvas en forma concava.
EP11855833.7A EP2663504A4 (fr) 2011-01-10 2011-12-02 Sachet ayant des coins incurvés de façon concave
RU2017107256A RU2669741C1 (ru) 2011-01-10 2011-12-02 Упакованный в пакет гранулированный продукт
BR112013016169A BR112013016169A2 (pt) 2011-01-10 2011-12-02 saco de contenção que tem os cantos curvos de modo côncavo
ZA2013/04725A ZA201304725B (en) 2011-01-10 2013-06-25 Pouch having concavely-curved corners

Applications Claiming Priority (1)

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PCT/CN2011/000038 WO2012094773A1 (fr) 2011-01-10 2011-01-10 Sachet à coin incurvé concave

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WO2012094773A1 true WO2012094773A1 (fr) 2012-07-19

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PCT/CN2011/000038 WO2012094773A1 (fr) 2011-01-10 2011-01-10 Sachet à coin incurvé concave
PCT/CN2011/002016 WO2012094791A1 (fr) 2011-01-10 2011-12-02 Sachet ayant des coins incurvés de façon concave

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PCT/CN2011/002016 WO2012094791A1 (fr) 2011-01-10 2011-12-02 Sachet ayant des coins incurvés de façon concave

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EP (1) EP2663504A4 (fr)
JP (1) JP2014502585A (fr)
CN (1) CN103415446A (fr)
BR (1) BR112013016169A2 (fr)
MX (1) MX354094B (fr)
RU (2) RU2013130652A (fr)
WO (2) WO2012094773A1 (fr)
ZA (1) ZA201304725B (fr)

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TWI583601B (zh) * 2015-06-01 2017-05-21 yi-qi Weng Packaging bags and packaging bags manufacturing methods

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CN111212791B (zh) * 2017-10-31 2022-02-25 宝洁公司 侧角撑小袋
JP7240839B2 (ja) * 2018-09-04 2023-03-16 フジモリ産業株式会社 滅菌袋及びその製造方法、製造装置
JP7448794B2 (ja) 2020-03-23 2024-03-13 キョーラク株式会社 包装袋、製袋充填方法

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WO2007113066A1 (fr) * 2006-04-04 2007-10-11 Unilever N.V. sachet rempli de gaz
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Also Published As

Publication number Publication date
RU2669741C1 (ru) 2018-10-15
BR112013016169A2 (pt) 2018-07-17
WO2012094791A1 (fr) 2012-07-19
CN103415446A (zh) 2013-11-27
JP2014502585A (ja) 2014-02-03
EP2663504A4 (fr) 2014-07-16
EP2663504A1 (fr) 2013-11-20
MX354094B (es) 2018-02-12
MX2013008079A (es) 2013-08-09
ZA201304725B (en) 2014-12-23
RU2013130652A (ru) 2015-02-20

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