US20140134297A1 - Infusion bag - Google Patents

Infusion bag Download PDF

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Publication number
US20140134297A1
US20140134297A1 US14/128,787 US201214128787A US2014134297A1 US 20140134297 A1 US20140134297 A1 US 20140134297A1 US 201214128787 A US201214128787 A US 201214128787A US 2014134297 A1 US2014134297 A1 US 2014134297A1
Authority
US
United States
Prior art keywords
hanging string
infusion
bag
bag portion
tag
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
Application number
US14/128,787
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English (en)
Inventor
Hiromi Aizawa
Katsuhisa Kajiyama
Motomu Takamatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ito En Ltd
Ito En Sangyo Ltd
Original Assignee
Ito En Ltd
Ito En Sangyo Ltd
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 Ito En Ltd, Ito En Sangyo Ltd filed Critical Ito En Ltd
Assigned to ITO EN SANGYO, LTD., ITO EN, LTD. reassignment ITO EN SANGYO, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TAKAMATSU, MOTOMU, AIZAWA, HIROMI, KAJIYAMA, Katsuhisa
Publication of US20140134297A1 publication Critical patent/US20140134297A1/en
Abandoned legal-status Critical Current

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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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags
    • B65D85/812—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags with features facilitating their manipulation or suspension
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F3/00—Tea; Tea substitutes; Preparations thereof
    • A23F3/16—Tea extraction; Tea extracts; Treating tea extract; Making instant tea
    • 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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/20—External fittings
    • B65D25/22—External fittings for facilitating lifting or suspending of containers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the present invention relates to an infusion bag that contains black tea leaves, green tea leaves, coffee grains, bonito flakes, or the like, and allows infusion thereof.
  • Black teabags can be simply steeped in hot water to easily infuse black tea. Such teabags can be also easily disposed of, and thus have been widely used. In recent years, infusion bags for preference beverages such as green tea or coffee other than black tea have been widely used.
  • teabags are generally made of a paper filter produced for infusion in a teacup.
  • teabags of mesh or unwoven fabric are also sold that have high infusion capability and can easily provide authentic flavor of leaf tea brewed by a teapot.
  • FIG. 6 or the like in Patent Literature 1 shows a package having a notch portion in a tag, an intermediate portion of a hanging string being wound around the notch portion.
  • FIG. 9 or the like in Patent Literature 2 shows an infusion bag around an outer periphery of which a hanging string is wound.
  • FIG. 2 or the like in Patent Literature 3 shows an infusion package having a holding string heat sealed on a permeable bag.
  • FIG. 1 or the like in Patent Literature 4 shows a flat teabag having a hanging string, one end of which is bonded near an intersection of diagonals on one surface of a bag.
  • FIGS. 2 and 6 or the like in Patent Literature 5 show a Tetra Pak® for infusing preference beverages having a tag string attached at an end to a center of one surface of a bag or an edge of the bag.
  • FIG. 1 or the like in Patent Literature 6 shows a teabag having a hanging string of 20 cm in length for hanging a bag containing tea leaves.
  • Patent Literature 1 Japanese Patent Laid-Open No. 2002-211641
  • Patent Literature 2 Japanese Patent Laid-Open No. 2010-120667
  • Patent Literature 3 Japanese Patent Laid-Open No. 2002-337936
  • Patent Literature 4 Japanese Patent Laid-Open No. 2006-21819
  • Patent Literature 5 Japanese Patent Laid-Open No. 2007-246128
  • Patent Literature 6 Japanese Utility Model Registration No. 3081339
  • the tag With the hanging string wound around the tag as disclosed in Patent Literature 1, or with the hanging string sealed on an outer periphery of the infusion bag as disclosed in Patent Literatures 2 and 3, the tag must be turned or the infusion bag must be held by hand to unwind a hanging string, which is troublesome before start of an infusion work. Also, since the infusion bag is held by hand when the hanging string is unwound, fine powder of material adhering to an infusion bag surface makes the hand dirty, or fine powder of material leaking from the infusion bag is dispersed, which results in poor operability.
  • Patent Literature 6 it is conceivable to provide a long hanging string of an infusion bag.
  • a long hanging string increases time for unwinding and worsens the operability described above.
  • the hanging string may disadvantageously be clamped in a seal portion in individual packaging, and thus merely increasing the length of a hanging string does not provide convenience.
  • a long hanging string requires stability in infusion and filtration, and as shown in FIG. 1 in Patent Literature 4 and FIG. 2 in Patent Literature 5, if the hanging string is attached near the center of one surface of the infusion bag, resistance increases when the teabag is vertically waved in hot water in infusion to prevent infusion. Also, in the infusion bag 7 as shown in FIG. 8 , a substance used for infusion 9 in a bag portion 8 gathers at a lower end apex. This prevents the substance used for infusion 9 from opening to reduce infusion capability. Further, when the teabag is pulled up from an infusion liquid, the infusion liquid disadvantageously tends to gather at the lower end apex, which prevents liquid cut, and causes continuous dripping.
  • the present invention has an object to provide a new infusion bag that is easy to handle even if a long hanging string is used, facilitates infusion, and can prevent the hanging string being caught in a seal portion during sealing of an individual package, and further provide an infusion bag that can improve liquid cut after infusion and prevent dripping.
  • the present invention proposes an infusion bag including: a bag portion containing a substance used for infusion; and a hanging string having a front end to which a tag is fastened, and a base end fastened to a surface of the bag portion, wherein the hanging string is collected into a spiral and placed on the surface of the bag portion, and the tag is detachably fastened to the surface of the bag portion so as to cover the hanging string.
  • the hanging string is covered with the tag.
  • the tag since there is no need to hold the infusion bag by hand in unwinding the hanging string, fine powder of material adhering to an infusion bag surface does not make the hand dirty, or fine powder of material leaking from the infusion bag is not dispersed, which provides good operability.
  • the hanging string since the hanging string is covered with the tag, the hanging string can be prevented from being caught in a seal portion during sealing of an individual package.
  • FIG. 1 is a perspective view showing an example of an infusion bag according to an embodiment of the present invention.
  • FIG. 2 is an enlarged plan view of an example of a tag portion of the infusion bag in FIG. 1 .
  • FIG. 3 is a perspective view of an illustrative infusion bag according to another embodiment of the present invention.
  • FIG. 4 is a perspective view showing a hanging string of the infusion bag in FIG. 1 being stretched.
  • FIG. 5 is a side view showing the infusion bag in FIG. 1 being hung.
  • FIG. 6(A) is a sectional view of a bag portion of the infusion bag in FIG. 1 taken along a vertical line passing through a gravity point
  • FIG. 6(B) is a plan view of the bag portion of the infusion bag in FIG. 1 .
  • FIG. 7 is an enlarged sectional view of an example of a tag portion of the infusion bag in FIG. 1 .
  • FIG. 8 is a side view showing an example of a conventional infusion bag.
  • an infusion bag 1 (hereinafter referred to as “the infusion bag 1 ”) according to an embodiment of the present invention includes a bag portion 2 containing a substance used for infusion, and a hanging string 3 having a front end to which a tag 5 is fastened.
  • the bag portion 2 may be made of any permeable material.
  • the bag portion 2 may be formed of a sheet of synthetic fiber such as polyester, nylon, polyethylene, or polypropylene, nonwoven fiber, porous film, or the like.
  • a sheet to which a tag can be fastened by heat seal or ultrasonic seal is preferable.
  • a thickness of the sheet for forming the bag portion 2 is preferably 0.01 mm to 0.16 mm, more preferably, 0.02 mm to 0.12 mm, and particularly preferably 0.06 mm to 0.10 mm.
  • the bag portion 2 may be formed into any bag shape.
  • the bag portion 2 may be formed into a polyhedron such as a triangular pyramid or a hexahedron, a cylindrical shape, and also a flat shape including a rectangle on plan view such as a square or an oblong on plan view, and a triangle on plan view.
  • the bag portion 2 is preferably formed into an inverted triangular pyramid (tetrahedron) as shown in FIG. 1 or an oblong on plan view as shown in FIG. 3 .
  • a preferable triangular pyramid is a triangular pyramid, 45 mm to 80 mm, particularly 50 mm to 60 mm on a side.
  • a preferable flat oblong on plan view is an oblong of 70 mm to 90 mm by 50 mm to 65 mm.
  • the substance used for infusion contained in the bag portion 2 includes, for example, green tea leaves, black tea leaves, oolong tea leaves, herbs, wild grass, mixed tea leaves, barley grains, pearl barley grains, coffee grains, or bonito flakes.
  • the quantity of the substance used for infusion is not particularly limited.
  • the quantity of the substance contained is preferably 1.0 g to 10.0 g, more preferably 1.5 g to 9.0 g, and particularly preferably 2.0 g to 8.0 g.
  • the hanging string 3 may be made of any material.
  • the hanging string 3 may be a string of synthetic fiber that can be heat sealed or ultrasonic sealed such as polyester, nylon, polyethylene, or polypropylene.
  • a string on which a crease mark is hardly left when wound and that easily returns to its original linear state is preferably used. Such a string can be determined by measuring resilience to the linear state.
  • Static load elongation of the hanging string 3 is preferably 4 mm to 8 mm, more preferably 5 mm to 7 mm.
  • the static load elongation can be adjusted by a material or a thickness of the hanging string, the number of twisted yarns, or the like. In order to obtain the above described range, it is preferable that 3 to 8, more preferably 4 to 6 yarns are twisted to have a thickness of 0.4 mm to 1.2 mm, particularly 0.5 mm to 1.0 mm.
  • the static load elongation of the hanging string can be measured by fitting the hanging string to a Marlens fatigue tester. Specifically, a hanging string having a length of 250 mm is immersed in hot water at 90° C. for one minute, and then an indication line having a length of 100 mm is drawn at the center. The hanging string is fitted to the Marlens fatigue tester with a clamp gap of 150 mm, left for 10 minutes with a load of 500 g being applied thereon. Then, a length of the indication line is measured, and from this value, the original length of 100 mm is subtracted, thereby calculating the static load elongation.
  • the length of the hanging string 3 is preferably 160 mm to 260 mm, and more preferably 170 mm to 200 mm so that the infusion bag is easily used in a mug or the like.
  • a tag 5 is fastened to a front end of the hanging string 3 .
  • the tag 5 is held by fingers to pick up the infusion bag 1 , and is preferably shaped so as to be easily held by fingertips.
  • the tag may be formed into a sheet or a flat plate having a circular, heart, clover, oval, square, or oblong shape on plan view.
  • the tag 5 may be made of any material.
  • a piece of laminated paper is preferably used that has one side laminated with resin such as polyethylene and can be heat sealed or ultrasonic sealed.
  • a thickness of the tag 5 is preferably 0.09 mm to 0.36 mm, more preferably 0.14 mm to 0.28 mm, and particularly preferably 0.18 mm to 0.21 mm.
  • the base end of the hanging string 3 is fastened to the surface of the bag portion 2 .
  • a fastening position of the base end of the hanging string 3 is a position deviated from an intersection O between a vertical line passing through a geometric gravity point W of a polyhedron and a surface 4 , when it is assumed that the shape of the bag portion 2 is a polyhedron, that is, a polyhedron formed of only planes even if the surface of the bag portion 2 is rounded, and the surface 4 of the bag portion 2 to which the base end of the hanging string 3 is fastened is horizontally oriented.
  • the geometric gravity point W of the bag portion 2 is a geometric gravity point of a polyhedron of the extended bag portion 2 containing no substance used for infusion.
  • a fastening position of the base end of the hanging string 3 is preferably a position with a percentage of area of more than 0% to less than 98%, more preferably 2% to 95%, further preferably 5% to 95%, even further preferably 10% to 90%, and particularly preferably 15% to 85%.
  • a total area of the surface of the bag portion to which the base end of the hanging string is fastened, and an area of a shape similar to the surface passing through the fastening position of the base end are calculated to obtain a percentage of the area of the similar shape with respect to the total area.
  • the percentage can be used to calculate the percentage:
  • the percentage of area is 0% if the base end is fastened to the intersection position O between the vertical line passing through the gravity point of the bag portion and the surface, and the percentage of area is 100% if the base end is fastened to an outer edge of the surface.
  • a hanging string is attached near the center of one surface, and the surface is horizontally oriented in infusion. This increases resistance when the teabag is vertically waved in hot water in infusion to prevent infusion.
  • a substance used for infusion in a bag portion gathers at a lower end apex. This prevents the substance used for infusion from opening to reduce infusion capability. Further, when the teabag is pulled up from an infusion liquid, the infusion liquid tends to gather at the lower end apex, which prevents liquid cut and provides continuous dripping.
  • the base end of the hanging string 3 is fastened to the position deviated from the intersection O between the vertical line passing through the gravity point W and the surface 4 .
  • the bag portion 2 is tilted when being hung, which reduces resistance when the bag portion 2 is vertically waved in hot water in infusion, and allows the bag portion 2 to be easily pulled up.
  • the bag portion 2 is tilted when being hung, the substance used for infusion easily spread in the bag portion 2 and are properly dispersed, and thus tea leaves can sufficiently open in hot water, thereby providing good infusion capability.
  • the infusion liquid tends to gather at a lower end apex, which prevents liquid cut and provides continuous dripping.
  • an infusion liquid gradually gathers at a lower end apex, thereby providing good liquid cut and prevents dripping as compared to the conventional infusion bag.
  • the hanging string 3 is preferably collected into a spiral and placed on the surface 4 of the bag portion 2 , for example as shown in FIG. 2 .
  • the hanging string 3 is thus collected into a spiral and placed, thereby allowing the hanging string 3 to be stretched without being entangled when the tag 5 is picked up.
  • the “spiral” herein includes, for example, a spiral with circles or ovals continuous to be shifted in a direction perpendicular to a turning direction as shown in FIG. 2 , and also includes a whorl continuous to be concentrically shifted in a turning direction.
  • the hanging string 3 is preferably collected so that parts of the hanging string 3 do not overlap as much as possible.
  • the hanging string 3 is preferably collected in such a manner that ovals are laterally shifted.
  • the hanging string 3 may be collected so as to cover the fastening portion of the base end 3 a to the surface of the bag portion 2 .
  • the hanging string 3 is preferably collected in a position apart from the fastening portion of the base end 3 a to the surface of the bag portion 2 .
  • the tag 5 is detachably fastened to the surface 4 of the bag portion 2 so as to cover the hanging string 3 collected as described above.
  • the hanging string 3 is stretched to allow the bag portion 2 to be hung, which does not require work for unwinding the hanging string as is conventional, and improves operability.
  • the tag 5 does not need to cover the entire hanging string 3 , and a part of the hanging string 3 may be exposed.
  • the hanging string 3 is thus covered with the tag 5 , thereby preventing the hanging string from being caught in a seal portion during sealing of an individual package.
  • the tag 5 may be fastened to the surface 4 of the bag portion 2 by any means, but is preferably fastened by heat seal, ultrasonic seal, or the like.
  • the hanging string 3 is preferably held between at least two fastening portions 6 , 6 at which the tag 5 is fastened to the surface 4 of the bag portion 2 . This can prevent the hanging string 3 from being unwound by itself.
  • the tag 5 is preferably formed to have a protrusion “t” of 3 mm or less, more preferably 2 mm or less from the surface 4 as shown in FIG. 7 in a state where the tag 5 covers the hanging string 3 and is detachably fastened to the surface 4 of the bag portion 2 .
  • This can reduce a thickness of an individual package.
  • the above described protrusion can be obtained by collecting the hanging string 3 with circles or ovals being laterally shifted so that parts of the hanging string 3 do not overlap as much as possible.
  • the infusion bag 1 can be manufactured by collecting the hanging string 3 into a spiral and placing the hanging string 3 on the surface 4 of the bag portion 2 , and then detachably fastening the tag 5 to the surface 4 of the bag portion 2 so as to cover the hanging string 3 .
  • a hanging string with a tag is collected into a spiral and placed on a permeable filter sheet of a long strip shape, and the tag is placed on the hanging string and detachably fastened to the sheet. Then, the sheet is used to manufacture the infusion bag 1 using a conventional automatic teabag packaging machine.
  • the infusion bag 1 allows even a long hanging string 3 to be easily stretched, can provide good operability in infusion and good infusion capability, improve liquid cut after infusion, and prevent dripping. Also, the hanging string can be prevented from being caught in a seal portion during sealing of an individual package.
  • X to Y means “X or more and Y or less” unless otherwise specified, and also includes meaning of “preferably more than X and less than Y”.
  • a fastening position of a hanging string to an infusion bag was changed, and an influence on liquid cut and dripping was tested.
  • a bag portion made of nylon and having a triangular pyramid shape, about 50 mm on a side, and a bag portion made of nylon and having a flat shape of 70 mm by 50 mm were used.
  • the bag portion contained green tea leaves of 1.8 g.
  • the fastening position of a base end of the hanging string was represented by the percentage of area described above.
  • the hanging string was fastened to positions of 0%, 2%, 15%, 50%, and 98%.
  • the hanging string was fastened to a position of 90%.
  • the infusion bags were steeped in hot water, immediately thereafter, vertically waved five times and picked up. Then, “cut of infusion liquid”, “dripping after infusion”, “ease of stir”, and “leachability” were checked.
  • the static load elongation of the hanging string was measured by fitting the hanging string to a Marlens fatigue tester. Specifically, a hanging string having a length of 250 mm was immersed in hot water at 90° C. for one minute, and then an indication line having a length of 100 mm was drawn at the center. The hanging string was fitted to the Marlens fatigue tester with a clamp gap of 150 mm, left for 10 minutes with a load of 500 g being applied thereon. Then, a length of the indication line was measured, and from this value, the original length of 100 mm was subtracted, thereby calculating the static load elongation.
  • Each infusion bag was steeped in hot water at 90° C. for one minute, vertically waved seven times, and “ease of stir” and “leachability” were checked.
  • the hanging string having the static load elongation of 4 mm to 8 mm provides satisfactory “ease of stir” and “leachability”.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Packages (AREA)
  • Tea And Coffee (AREA)
US14/128,787 2011-07-08 2012-06-28 Infusion bag Abandoned US20140134297A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011152123A JP5001448B1 (ja) 2011-07-08 2011-07-08 抽出バッグ
JP2011-152123 2011-07-08
PCT/JP2012/066499 WO2013008636A1 (ja) 2011-07-08 2012-06-28 抽出バッグ

Publications (1)

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US20140134297A1 true US20140134297A1 (en) 2014-05-15

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ID=46793973

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/128,787 Abandoned US20140134297A1 (en) 2011-07-08 2012-06-28 Infusion bag

Country Status (9)

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US (1) US20140134297A1 (es)
EP (1) EP2730517A4 (es)
JP (1) JP5001448B1 (es)
CN (1) CN103874639B (es)
AU (1) AU2012281745B2 (es)
CA (1) CA2840928A1 (es)
MX (1) MX350098B (es)
TW (1) TWI526375B (es)
WO (1) WO2013008636A1 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2555787A1 (es) * 2014-07-03 2016-01-08 Cafes Camuy, S.A. Bolsa de infusión con preparado natural para aromatización de bebidas
US20220048702A1 (en) * 2020-08-17 2022-02-17 Jay Cannold Tea bag attached to a string made of dental floss - string can be used to floss your teeth after you use it to make tea.

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Publication number Priority date Publication date Assignee Title
JP6530649B2 (ja) * 2015-06-25 2019-06-12 不双産業株式会社 抽出バッグ、抽出バッグ用シート
JP7290820B2 (ja) * 2019-02-21 2023-06-14 シブヤパッケージングシステム株式会社 抽出バッグ用シート製造方法および製造装置
JP7290822B2 (ja) * 2019-03-18 2023-06-14 シブヤパッケージングシステム株式会社 抽出バッグ用シート製造方法および製造装置
FR3113044B1 (fr) * 2020-07-31 2022-08-05 Diffussence Système de sachet pour infusion

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US2852389A (en) * 1954-08-06 1958-09-16 Bartelt Engineering Co Infusion package
US2869718A (en) * 1956-09-14 1959-01-20 Pneumatic Scale Corp Infusion bag
US4055668A (en) * 1975-03-25 1977-10-25 S I G Schweizerische Industrie-Gesellschaft Infusion package
US5135762A (en) * 1990-03-21 1992-08-04 Thomas J. Lipton Co., Division Of Conopco, Inc. Compartmental infusion packet
JPH0398870A (ja) * 1990-07-19 1991-04-24 Yamanaka Sangyo Kk 四面体状抽出バッグ
US5552164A (en) * 1993-10-12 1996-09-03 Thomas J. Lipton, Co., Division Of Conopco, Inc. Infusion package
US5657712A (en) * 1994-07-08 1997-08-19 I.M.A. Industria Macchine Automatiche S.P.A. Method for attaching a tag to a tea bag
US8047360B2 (en) * 2007-06-11 2011-11-01 Ima Flavour S.R.L. Single lobe filter bag for infusion products
US20090246324A1 (en) * 2008-03-28 2009-10-01 Sluzas Daniel M Infusion package
US8500617B2 (en) * 2008-05-20 2013-08-06 Tsubakimoto Kogyo Co., Ltd. Method for manufacturing extraction bag sheet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2555787A1 (es) * 2014-07-03 2016-01-08 Cafes Camuy, S.A. Bolsa de infusión con preparado natural para aromatización de bebidas
US20220048702A1 (en) * 2020-08-17 2022-02-17 Jay Cannold Tea bag attached to a string made of dental floss - string can be used to floss your teeth after you use it to make tea.

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EP2730517A1 (en) 2014-05-14
EP2730517A4 (en) 2015-04-22
WO2013008636A1 (ja) 2013-01-17
MX2014000188A (es) 2014-05-01
AU2012281745A1 (en) 2014-01-16
CA2840928A1 (en) 2013-01-17
MX350098B (es) 2017-08-25
JP2013018508A (ja) 2013-01-31
TWI526375B (zh) 2016-03-21
JP5001448B1 (ja) 2012-08-15
CN103874639A (zh) 2014-06-18
TW201315659A (zh) 2013-04-16
CN103874639B (zh) 2015-07-22
AU2012281745B2 (en) 2016-11-17

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