EP1449784A1 - Goulotte destinee a un sachet et sachet plastique sur lequel est fixee une goulotte - Google Patents

Goulotte destinee a un sachet et sachet plastique sur lequel est fixee une goulotte Download PDF

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Publication number
EP1449784A1
EP1449784A1 EP02767946A EP02767946A EP1449784A1 EP 1449784 A1 EP1449784 A1 EP 1449784A1 EP 02767946 A EP02767946 A EP 02767946A EP 02767946 A EP02767946 A EP 02767946A EP 1449784 A1 EP1449784 A1 EP 1449784A1
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EP
European Patent Office
Prior art keywords
spout
pouch
end portion
seal part
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02767946A
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German (de)
English (en)
Other versions
EP1449784A4 (fr
Inventor
K. Corporate Res.&Dev. Toyo Seikan Group KUROSAWA
N. Corporate Res.&Dev. Toyo Seikan Group MATSUDA
K. Corporate Res.&Dev. Toyo Seikan Group TAKEUCHI
T. Corporate Res.&Dev. Toyo Seikan Group KUROSAWA
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.)
Toyo Seikan Group Holdings Ltd
Original Assignee
Toyo Seikan Kaisha 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 Toyo Seikan Kaisha Ltd filed Critical Toyo Seikan Kaisha Ltd
Publication of EP1449784A1 publication Critical patent/EP1449784A1/fr
Publication of EP1449784A4 publication Critical patent/EP1449784A4/fr
Withdrawn legal-status Critical Current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
    • B65D33/00—Details of, or accessories for, sacks or 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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
    • 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
    • B65D2575/00—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
    • B65D2575/52—Details
    • B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D2575/583—Opening or contents-removing devices added or incorporated during package manufacture the non-integral spout having an elongate cross-sectional shape, e.g. canoe or boat shaped
    • 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
    • B65D75/008—Standing pouches, i.e. "Standbeutel"

Definitions

  • the present invention relates to a spout for a pouch, which is fixed to a plastic pouch for containing beverages, foods, seasonings, pharmaceuticals, cosmetics, detergents, etc., and also related to a plastic pouch with the spout fixed thereto.
  • a pouch with a spout i.e., a pouch formed of a heat-sealed plastic film and having a spout fixed to the opening portion of the pouch, is widely used as means for containing beverages, foods, seasonings, pharmaceuticals, cosmetics, detergents, etc.
  • a cylindrical spout As a spout of such a plastic pouch, there is known a cylindrical spout as shown in Fig. 16.
  • a cylindrical spout 21 When fixing a cylindrical spout 21 to a mouth part of a plastic pouch 22 by heat sealing, however, wrinkles 23 are caused in a plastic film constituting a pouch body 22 in areas on the opposite lateral sides of the spout 21 inserted in the pouch (see Fig. 16), which causes much difficulty in performing the heat sealing between the spout and the pouch. Therefore, the following problems have been experienced.
  • the spout cannot be fixed to the pouch at a desired level of heat-sealing strength.
  • the generation of the wrinkles deteriorates an outer appearance of the pouch filled with the contents. Stresses tend to concentrate in the areas where the wrinkles have generated.
  • the pouch may rupture in those areas and the contents may leak out of the pouch.
  • a seal part 32 of a spout 31 which is inserted in the pouch, as a boat-shaped portion 33 symmetrical in the left and right direction, as shown in Fig. 17.
  • the heat-sealing capability between the spout 31 and the pouch body 35 is improved.
  • a plastic material usually a polyolefin resin, such as polyethylene and polypropylene, having a high heat-sealing capability
  • the plastic pouch 35 has accompanied a drawback that gas flows between the interior and the exterior of the pouch while permeating through the boat-shaped portion 33, as indicated by arrows in Fig. 17, whereby the contents filled in the pouch 35 are oxidized and hence deteriorate.
  • a conceivable solution for preventing such a reduction of the gas shielding capability caused by the configuration of the spout itself is to form a gas barrier layer in the spout.
  • gas cannot be prevented from permeating through the boat-shaped portion 33. Only when the gas barrier layer 36 is formed to cover a cylindrical mouth part 34 in an upper portion of the spout and an entire upper surface of the boat-shaped portion 33 as shown in Fig. 18(B), gas can be prevented from permeating through the spout itself.
  • an object of the present invention is to solve the problems set forth above and to provide a spout for a pouch, which can be reliably heat-sealed to a plastic pouch body to provide an excellent gas-shielding capability for preventing gas permeation through the spout itself, and can be simply manufactured at a low cost without requiring complicated processes and special materials.
  • Another object of the present invention is to provide a plastic pouch with such a spout, which has a more aesthetically pleasing outer appearance without wrinkles or the likes, an excellent gas-shielding capability, and a high heat- sealing strength.
  • the inventors have found that the above objects can be achieved by devising the shape of a part of a spout, which is inserted in a pouch and fixed to a pouch body for sealing, and have accomplished the present invention based on the finding.
  • the present invention is constituted as follows:
  • outer peripheral length of the horizontal cross-section of the seal part of the spout fixed to the pouch for sealing means a length defined as follows:
  • lengths are “substantially equal” means that the lengths are within the range of ⁇ 10 % of an average value or so.
  • Figs. 1 to 3 show one example of a spout for a pouch according to the present invention.
  • Fig. 1 is a front view of the spout
  • Fig. 2 is a vertical cross-sectional view of the spout shown in Fig. 1.
  • Fig. 3 is a horizontal cross-sectional view of the spout shown in Fig. 1. More specifically, (A), (B) and (C) of Fig. 3 show horizontal cross-sections taken along the lines AA, BB and CC in Fig. 1, respectively.
  • FIG. 4 is a perspective view showing a standing pouch to which the spout shown in Fig. 1 is fixed
  • Fig. 5 is an enlarged cross-sectional view of a portion of the standing pouch shown in Fig. 4 to which the spout is fixed
  • Fig. 6 is a schematic side cross-sectional view of the standing pouch shown in Fig. 4.
  • the spout 1 for a pouch shown in Fig. 1, comprises a cylindrical mouth part 3 having a screwed portion 2 formed on its outer periphery for fitting with a cap (not shown) and a passage 7 formed therein, and a seal part 4 provided at a lower end portion of the mouth part 3 for sealing with a plastic pouch.
  • the seal part 4 fixed to the plastic pouch by heat sealing comprises a barrel 5 formed such that an outer cross-sectional shape of its upper end portion is circular and a cross-sectional shape of its lower end portion is boat-like symmetrical in the left and right direction, and a pair of wing pieces 6, 6 provided on opposite sides of the barrel 5 and each having a thickness gradually increasing in a direction from the upper end portion toward the lower end portion thereof.
  • the seal part 4 has an outer configuration formed such that a thickness of the seal part 4 gradually and continuously increases in a direction toward the lower end portion from the upper end portion thereof and, as shown in (A), (B) and (C) of Fig. 3, an area surrounded by a contour of its horizontal cross-section continuously increases in a direction toward the lower end portion represented by (C) from the upper end portion represented by (A). Further, the wing pieces 6 are formed in thickness gradually decreasing toward opposite side ends.
  • an outer peripheral length of the horizontal cross-section of the seal part 4 fixed to the plastic pouch by sealing i.e., a length from a1 to a3 via a2 in Fig. 3(A), a length from b1 to b3 via b2 in Fig. 3(B), and a length from c1 to c3 via c2 in Fig. 3(C)
  • the expression "substantially equal” means that the lengths are within the range of ⁇ 10 % of an average value or so. In order to minimize wrinkles caused when the seal part 4 is fixed to the plastic pouch by heat sealing, however, the lengths are more preferably kept within the range of ⁇ 5 % of an average value.
  • the plastic film constituting the pouch 11 and the spout 1 are brought into a smoother contact with each other. It is therefore possible to prevent wrinkles from being caused upon the heat sealing, and to avoid stresses from being concentrated on near a joined portion between the plastic film and the spout 1.
  • the seal part in the form of very thin wings, i.e., the wing pieces 6, which extend along spout end portions, it is possible to effectively fill up small voids that tend to generate upon the heat sealing between the spout and the pouch in areas where the spout end portions and the pouch meet each other.
  • the standing pouch with the spout 1 fixed thereto has a smooth outer appearance and a much improved standing posture. As a result, a commodity value of the pouch filled with the contents is increased.
  • a gas barrier layer 8 is provided as an intermediate layer inside a cylindrical mouth part 3 of the spout 1 so as to ensure a gas shielding capability of the plastic pouch 11 to which the spout 1 is fixed.
  • the gas barrier layer 8 serves to shut off gas permiation through the mouth part 3 of the spout 1. Further, as shown in Fig. 3(A), since the seal part 4 fixed to the pouch 11 by heat sealing has a very small cross-sectional area in its upper end portion, gas permeation through the spout 1 itself can be greatly reduced.
  • the spout 1 when fixing the spout 1 and the pouch 11 together by heat sealing, the spout 1 is arranged such that the upper end portion of the seal part 4 of the spout 1 is positioned completely inside the pouch 11 and a heat-sealed area 12 where the opposite-side plastic films constituting the pouch 11 are joined to each other by the heat sealing is formed above the seal part 4.
  • gas permeation through the spout 1 itself can be perfectly shut off.
  • Fig. 7 shows another example of the spout for the pouch according to the present invention. More specifically, Fig. 7(A) is a front view of the spout, and Fig. 7(B) is a vertical cross-sectional view taken along the line XX in Fig. 7(A).
  • the lower end portion of the seal part 4 is rounded at its outer periphery as denoted by R.
  • the other construction of the spout 1 of this example is the same as that of the spout shown in Fig. 1.
  • Fig. 8 shows still another example of the spout for the pouch according to the present invention. More specifically, Fig. 8(A) is a front view of the spout, and Fig. 8(B) is a vertical cross-sectional view taken along the line YY in Fig. 8(A).
  • the lower end portion of the seal part 4 is rounded at its outer periphery as denoted by R and are provided with tongue-shaped projections 9.
  • the passage 7 provided in the spout 1 is formed so as to gradually spread in the barrel 5 in match with the outer configuration thereof.
  • hanger flanges 10, 10 each having a substantially rectangular plan shape are provided on an outer periphery of the mouth part 3 of the spout 1 to serve athes for carrying the pouch in a hanging state while being supported at the spout.
  • the projections 9 are formed with a thickness gradually decreasing toward its fore end so that the tongue-shaped projections 9 are apt to more easily flex.
  • the thickness of the tongue-shaped projections 9 is not specifically required to be changed.
  • the tongue-shaped projection 9 develops the effects of increasing the strength of the pouch with the spout against dropping, and of preventing the plastic film constituting the pouch body from causing a blockage when the contents are poured, thereby improving a capability of pouring the contents.
  • Figs. 9 to 11 show still another example of the spout for the pouch according to the present invention. More specifically, Fig. 9 is a front view of the spout, Fig. 10 is a horizontal cross-sectional view of the spout, and Fig. 11 is a vertical cross-sectional view of the spout. (D), (E) and (F) of Fig. 10 are horizontal cross-sectional views taken along the lines DD, EE and FF in Fig. 9, respectively.
  • the seal part 4 is constituted by only the barrel 5 connected adjacent to the lower portion of the mouth part 3 without providing the wings 6 in the seal part 4 fixed to the plastic pouch by heat sealing.
  • a gas barrier layer 8 is formed by providing a vapor-deposited metal layer over an entire surface of the passage 7 extending from an upper end of the mouth part 3 of the spout to a lower end of the seal part 4 (i.e., over an entire inner peripheral surface of the spout 1).
  • the other construction of the spout 1 of this example is the same as that of the spout shown in Fig. 1.
  • the heat-sealing capability between the spout 1 and the plastic pouch can be further improved.
  • the spout 1 of this example can also provide similar advantageous effects to those obtainable with the spout shown in Fig. 1.
  • Fig. 12 shows still another example of the spout for the pouch according to the present invention. More specifically, Fig. 12(A) is a front view of the spout, and Fig. 12(B) is a vertical cross-sectional view taken along the line ZZ in Fig. 12(A).
  • the seal part 4 is constructed by providing a pair of flat wings 6, 6, each of which has a substantially constant thickness, on opposite lateral sides of a truncated cone-shaped barrel 5 having a substantially constant thickness.
  • hanger flanges 10, 10 each having a substantially rectangular plan shape are formed at a root of the mouth part 3 of the spout 1, and ribs 13 are provided on an outer periphery of the barrel 5 and on the wings 6 for improving the heat-sealing capability between the spout 1 and the pouch.
  • the ribs 13 are provided to extend in the horizontal direction parallel to each other, it is needless to say that the arrangement of the ribs 13 can be modified as required.
  • the ribs 13 may be provided to extend in the vertical direction.
  • the spout for the pouch according to the present invention Comparing with the conventional spout, shown in Fig. 17, in which the horizontal cross-sectional shape is the same at the upper end portion and the lower end portion, the spout for the pouch according to the present invention, shown in the examples described above, has the improved effect of preventing a phenomenon that the film constituting the pouch body is bent to cause a blockage at a position just below the spout when the contents are poured.
  • the conventional spout for the pouch it is also proposed to provide a bar-like member extending downward from the spout for preventing the occurrence of a blockage and ensuring a capability of pouring the contents.
  • a bar-like member can be omitted and hence an amount of raw material for producing the spout can be cut down. Without the bar-like member, the pouch can be folded into a smaller size correspondingly.
  • the bar-like member may be provided to extend downward from the spout.
  • Fig. 13 is a front view showing still another example of the spout according to the present invention.
  • a bar-like member 14 is formed to extend downward from the seal part 4 and to be inserted in the pouch.
  • hanger flanges 10 each having a rectangular plan shape are provided on an outer periphery of the cylindrical mouth part 3 to serve athes for carrying the pouch in a hanging state while being supported at the spout.
  • two hanger flanges 10 are provided, three or more hanger flanges may be provided instead.
  • the other construction of the spout 1 of this example is the same as that of the spout shown in Fig. 1.
  • the capability of pouring the contents filled in the pouch is improved with the provision of the bar-like member 14.
  • the bar-like member 14 can be modified as desired, for example, by forming recesses, projections and/or holes therein, and its size can be selected on the case-by-case basis.
  • the spout 1 of this example can also provide similar advantageous effects to those obtainable with the spout shown in Fig. 1.
  • the mouth part is formed into a cylindrical shape so that a screwed cap is fitted to the mouth part of the spout.
  • the mouth part of the spout and the upper end portion of the seal part may be formed to have any other suitable cross-sectional shape such as an elliptic shape.
  • the cap may be constituted as a hinge cap.
  • Figs. 14 and 15 show still another example of the spout for the pouch according to the present invention.
  • Fig. 14 is an overall view showing one example in which a cap equipped with a heat sealable lid is fitted to a mouth part of the spout of the present invention.
  • Fig. 15(a) is a cross-sectional view of the cap equipped with the heat sealable lid
  • Fig. 15(b) is a cross-sectional view of the mouth part of the spout when the cap equipped with the heat sealable lid is employed
  • Fig. 15(c) is a cross-sectional view showing a state in which the cap equipped with the heat sealable lid is fitted to the mouth part of the spout
  • Fig. 15(d) is a cross-sectional view showing another example of a heat sealable lid.
  • the mouth part 3 of the spout can be enclosed by a heat sealable lid 42.
  • a peeling-off means constituted as an annular projection 43 provided in the cap body pushes up a portion 44 of the heat sealed lid 42 projecting out of the mouth part 3 of the spout, whereupon the heat sealed lid 42 is peeled off from the mouth part 3 of the spout, thus enabling the spout to be opened with one action.
  • the heat sealed lid 42 can be easily peeled off and the spout can be easily opened by fingers with no need of applying a large opening torque.
  • the heat-sealable-lid equipped cap 41 comprises, by way of example, a cap body made up of a top wall 45 and a skirt wall 46 which is extended downward from the top wall 45 and has a screwed portion 47 formed on its inner peripheral surface to be meshed with the screwed portion 2 of the mouth part 3 of the spout, and the heat sealable lid 42 fitted to and supported at a region between an upper end of the screwed portion on the inner side of the cap body and an inner peripheral portion of the top wall.
  • the heat sealable lid 42 has a heat-sealable layer formed at least on its lower surface, and is made of an elastic material having the projected portion 44 which has an outer diameter larger than that of the mouth part 3 of the spout and is projected out of the outer periphery of the mouth part 3 of the spout.
  • the peeling-off means constituted as the annular projection 43 engageable with the projected portion 44 of the heat sealable lid 42 is provided on an inner peripheral surface of the skirt wall 46.
  • the heat sealable lid 42 can be constituted as a multilayered sheet made up of at least a support layer which is formed on its upper surface and has rigidity, and a sealing layer which is formed on its lower surface and capable of being fixed to the opening top end of the spout by heat sealing.
  • the heat sealable lid 42 is constituted as a multilayered sheet including a metal foil inserted between the support layer and the sealing layer, the metal layer is heated by high-frequency induction heating to produce heat so that the sealing layer can be effectively heat-sealed to the opening top end of the spout by the produced heat.
  • the shape of the heat sealable lid 42 is not limited to a disk-like one. As shown in Fig. 15(d), by way of example, the heat sealable lid 42 may be formed into a shape having an annular intermediate leg 48 fitted to the inner peripheral surface of the mouth part 3 of the spout.
  • the peeling-off means for peeling off the heat sealed lid 42 upon unscrewing of the cap body when the spout is opened it is effective to form one annular projection 43 having an inner diameter smaller than the outer diameter of the heat sealed lid 42, or to form a plurality of projections.
  • the peeling-off means is not limited to those examples, and an upper end of the screwed portion formed on the inner peripheral surface of the skirt wall 46 may serve also as the peeling-off means.
  • the heat sealable lid 42 is constituted as an elastic member which has at least the sealing layer and the support layer, and which develops an adhesion strength with a material of the opening top end of the spout essentially in the range of 1 to 25 N per 15-mm width in terms of T-peeling strength. Further, a thickness t (mm) and a modulus of bending elasticity M (Mpa) of the heat-sealed layer and the support layer are set in the range of 30 ⁇ t ⁇ M ⁇ 3000.
  • the heat sealing strength must be selected so as to simultaneously provide an opening capability and a sealing capability at satisfactory levels.
  • the T-peel strength of the heat-sealed portion is preferably held in the above-mentioned range. If the T-peel strength is smaller than the lower limit, there occurs a fear in the sealing capability. If the T-peel strength is larger than the upper limit, the peel strength is too high and a larger torque is required for removing the screwed cap when the spout is opened, thus resulting in deterioration of the opening capability.
  • t ⁇ M is not more than 30, the rigidity of the sealing lid is too small and the sealing lid is deformed when peeling off it, and hence a force required for breaking the sealed portion cannot be developed. Conversely, if t ⁇ M is not less than 3000, the sealing lid is hardly deformed when peeling off it, and hence a force for breaking the sealed portion must be applied to the entire sealing lid surface, whereby the unsealing strength is increased.
  • thermoplastic resins are used to which the plastic film constituting the pouch can cohere by heat sealing.
  • thermoplastic resins include polyolefins such as polypropylene, a propylene-ethylene copolymer, crystalline polybutene-1, crystalline poly 4-metylpentene-1, low-, medium- or high-density polyethylene, linear low-density polyethylene, an ethylene-vinyl acetate copolymer (EVA), an ethylene-acrylic acid copolymer (EAA), an ethylene-ethyl acrylate copolymer (EEA), and an ion cross-linked olefin copolymer (ionomer); aromatic vinyl polymers such as polystyrene and a styrenebutadiene copolymer; vinyl halide polymers such as polyvinyl chloride and vinylidene chloride resin; nitrile polymers such as an acrylonitrile-styrene copolymer and an acrylonitrile-styrene-butadiene copolymer; polyamides such
  • Particularly preferable ones are, for example, polyolefin resins such as low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, polypropylene, and a propylene-ethylene copolymer.
  • the spout of the present invention can be molded by any of known methods, for example, injection molding and compression molding.
  • the gas barrier layer formed in the spout is constituted by, e.g., a gas shielding resin layer made of polyvinylidene chloride resin, saponified EVA, nylon, or a cyclic olefin copolymer; a resin layer having a vapor-deposited film of aluminum, silicon oxide, or another metal oxide; a resin layer containing clay minerals; and a foil of a metal such as aluminum.
  • the gas barrier layer can be formed in the spout by any of known methods, for examples, co-injection molding, multi-layer compression molding, multicolor molding, and vapor deposition.
  • a single-layer film made of thermoplastic resin having a heat-sealing capability can be used as well as a multilayered film made of two or more layers, i.e., a pouch inner layer made of such a thermoplastic resin film having a heat sealing capability and one or more other films laminated on the inner layer.
  • thermoplastic resin film having a heat sealing capability can be made of thermoplastic resins, for example, polyolefins such as polypropylene, a propylene-ethylene copolymer, crystalline polybutene-1, crystalline poly 4-metylpentene-1, low-, medium- or high-density polyethylene, linear low-density polyethylene, an ethylene-vinyl acetate copolymer (EVA), an ethylene-acrylic acid copolymer (EAA), an ethylene-ethyl acrylate copolymer (EEA), and an ion cross-linked olefin copolymer (ionomer); aromatic vinyl copolymers such as polystyrene and a styrenebutadiene copolymer; vinyl halide polymers such as polyvinyl chloride and vinylidene chloride resin; nitrile polymers such as an acrylonitrile-styrene copolymer and an acrylonitrile-st
  • Particularly preferable materials are, for example, olefin-based resins such as low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, polypropylene, a propylene-ethylene copolymer, an ethylene-vinyl acetate copolymer, and olefin resins graft-modified with ethylenically unsaturated carboxylic acids or anhydrides thereof; ionomer resins; polyamide or copolyamide resins having relatively low melting points or low softening points; and polyester or copolyester resins.
  • olefin-based resins such as low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, polypropylene, a propylene-ethylene copolymer, an ethylene-vinyl acetate copolymer, and olefin resins graft-modified with
  • the multilayered film is formed by using, as an inner layer of the pouch, the above-mentioned thermoplastic resin film having a heat healing capability and laminating one or more other films on it, as required, with an adhesive layer interposed between the adjacent two films.
  • adhesive resins are employed which are selected from among polyethylene imine resins, alkyl titanate resins, polyester-isocyanate resins, urethane resins, epoxy resins, polyether resins, and olefin-based resins to which polar groups are introduced.
  • the film laminated on the resin having a heat-sealing capability is not limited to a particular one, but includes any suitable one of materials usually employed for the pouch. While any of the above-mentioned materials suitable for the resin having a heat-sealing capability can be employed as a material for the laminated film, it is preferable to select a resin having a higher melting point than that of the resin used as the inner layer.
  • a composite film formed by laminating a foil of a metal such as aluminum, paper, or cellophane with one or more of the above-mentioned plastic film is also usable.
  • a multilayered film including any of a resin layer made of polyvinylidene chloride resin, saponified EVA, nylon, or a cyclic olefin copolymer; a resin layer having a vapor-deposited film of aluminum, silicon oxide, or another metal oxide; a resin layer containing clay minerals; and a foil of a metal such as aluminum.
  • Films made of foams of various synthetic resins can be further used for the purpose of giving heat insulation, rigidity and other desired properties to the film constituting the pouch.
  • films made of various synthetic resins in which inorganic substances, such as alumina, silica, titanium oxide, calcium carbonate, carbon and talc, glass fibers, or the likes are mixed.
  • Layer structure of the multilayered film suitable for constituting the pouch of the present invention are, for example, biaxially oriented polyethylene terephthalate (PET: outer layer) / non-oriented linear low-density polyethylene (LLDPE: inner layer), biaxially oriented nylon (outer layer) / LLDPE (inner layer), biaxially oriented PET (outer layer) / aluminum foil (intermediate layer) / LLDPE (inner layer), biaxially oriented nylon (outer layer) / aluminum foil (intermediate layer) / LLDPE (inner layer), biaxially oriented PET (outer layer) / biaxially oriented nylon (intermediate layer) / LLDPE (inner layer), biaxially oriented PET (outer layer) / aluminum foil (intermediate layer) / biaxially oriented nylon (intermediate layer) / LLDPE (inner layer), biaxially oriented PET (outer layer) / aluminum foil (intermediate layer) / biaxially oriented nylon
  • a multilayered film containing non-oriented polypropylene (PP) as an inner layer can be used, which includes, for example, biaxially oriented PET (outer layer) / aluminum foil (intermediate layer) / non- oriented polypropylene (PP: inner layer), biaxially oriented PET (outer layer) / biaxially oriented nylon (intermediate layer) / aluminum foil (intermediate layer) / non-oriented PP (inner layer), biaxially oriented PET (outer layer) / non-oriented PP (inner layer), biaxially oriented nylon (outer layer) / non-oriented PP (inner layer), biaxially oriented nylon (outer layer) / aluminum foil (intermediate layer) / non-oriented PP (inner layer), biaxially oriented PET with a vapor-deposited inorganic oxide (outer layer) / non-oriented PP (inner layer), and biaxially oriented PET with a vapor-deposited inorganic oxide (outer layer) / non
  • An adhesive layer selected from among the adhesive resins mentioned above is interposed between adjacent layers of such a multilayered film.
  • the plastic film should be formed of a single layer or not, and what kind of layer structure should be employed for the plastic film are selected depending on properties of the contents filled in the pouch.
  • the plastic film can be manufactured by any of ordinary methods such as casting, T-dieing, calendering, and inflation.
  • the multilayered film can be manufactured by any of ordinary methods such as dry lamination of preformed films, coating on a base film, and co-extrusion.
  • a spout having a shape shown in Fig. 12 was manufactured through compression molding of polypropylene.
  • the spout was dimensioned such that the overall height was 45 mm, the height of a seal part was 17 mm, the width of a lower end of the seal part was 24 mm, an upper end of the seal part had a circular cross-section with a diameter of 11.2 mm, the thickness of the seal part was 1.4 mm, and the thickness of a fitting portion of the cylindrical mouth part to the cap was 1.0 mm.
  • a multilayered film made of 12 ⁇ m-thick polyethylene terephthalate / 15 ⁇ m-thick biaxially oriented nylon / 7 ⁇ m-thick aluminum alloy foil / 50 ⁇ m-thick polypropylene in this order from the outer layer side was used as an envelope material constituting a pouch body.
  • the multilayered film was heat-sealed to the manufactured spout after arranging the spout, as shown in Figs. 4 and 5, such that the upper end of the seal part of the spout was positioned inside an upper end of the pouch body.
  • standing pouch with the spout was manufactured which had a height of 140 mm, a width of 90 mm, and a bottom gusset width of 25 mm.
  • a standing pouch with a spout was manufactured in the same manner as in Example 1 except for using a commercially available spout made of polypropylene and having a shape shown in Fig. 17.
  • the spout having a boat-like shape was dimensioned such that the overall height was 36 mm, the height of a seal part was 8 mm, and the cross-section of the seal part was 11.3-mm long ⁇ 19.5-mm wide.
  • a liquid passage with a diameter of 8 mm was formed at the center of the spout.
  • Example 1 After replacing atmospheres in the standing pouches with the spouts obtained in Example 1 and Comparative Example 1 by nitrogen gas, a top surface of a pouring port of each spout was enclosed by heat sealing with a multilayered film made of a 7 ⁇ m-thick aluminum alloy foil / 50 ⁇ m-thick polypropylene. These pouches were preserved under conditions of 30 °C - 80 % R.H., and an amount of oxygen permeating into the pouch was measured with gas chromatography. Table 1 given below shows the measured results calculated in terms of the pouch with the content volume of 150 ml.
  • the amount of oxygen permeating into the pouch can be minimized in comparison with that permeating into the pouch through the boat-like portion of the conventional spout. While, in Example 1 described above, a gas barrier layer is not provided in the cylindrical mouth part of the spout, the gas shielding capability of the spout can be further improved by providing such a gas barrier layer.
  • the plastic film constituting the pouch and the spout are brought into a smoother contact with each other, it is possible to prevent wrinkles from being caused upon the heat sealing, and to avoid stresses from being concentrated on near a joined portion between the plastic film and the spout. Hence, the heat sealing between the plastic pouch body and the spout can be performed with higher reliability.
  • the spout of the present invention is able to prevent a phenomenon that the film constituting the pouch body is bent to cause a blockage inside the pouch at a position just below the spout when the contents are poured from the pouch with the spout.
  • the spout of the present invention can be simply manufactured at a low cost without requiring complicated processes and special materials.
  • the pouch when the spout of the present invention is applied to a standing pouch, the pouch has a smoother outer appearance, a standing posture of the pouch is noticeably improved, and a commodity value of the pouch filled with the contents can be increased.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP02767946A 2001-09-28 2002-09-11 Goulotte destinee a un sachet et sachet plastique sur lequel est fixee une goulotte Withdrawn EP1449784A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001299783 2001-09-28
JP2001299783 2001-09-28
PCT/JP2002/009273 WO2003029094A1 (fr) 2001-09-28 2002-09-11 Goulotte destinee a un sachet et sachet plastique sur lequel est fixee une goulotte

Publications (2)

Publication Number Publication Date
EP1449784A1 true EP1449784A1 (fr) 2004-08-25
EP1449784A4 EP1449784A4 (fr) 2009-09-23

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Country Status (5)

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US (1) US20050040181A1 (fr)
EP (1) EP1449784A4 (fr)
JP (1) JP4345482B2 (fr)
KR (1) KR20040032870A (fr)
WO (1) WO2003029094A1 (fr)

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EP1897815A2 (fr) 2006-09-05 2008-03-12 Pöppelmann Holding GmbH & Co. KG. Bec verseur en plastique pour sachet en film
FR2924691A1 (fr) * 2007-12-06 2009-06-12 Oreal Recipient comportant une poche souple
US7762430B2 (en) * 2002-12-23 2010-07-27 Deutsche Sisi-Werke Gmbh & Co. Betriebs Kg Closing element with outlet channel extending in funnel-like manner
EP2488423A1 (fr) * 2009-10-16 2012-08-22 PPG Europe B.V. Sachet pour matière colorante de peinture
WO2015062806A1 (fr) 2013-10-29 2015-05-07 Cavonic GmbH Bec verseur en matière plastique pour emballages en sachets à fond plat, emballage en sachet à fond plat, ainsi que procédé de fabrication
WO2015125071A1 (fr) * 2014-02-24 2015-08-27 Guala Pack S.P.A. Bec imperméable à l'oxygène pour poche souple
US9132944B2 (en) 2011-01-11 2015-09-15 Pöppelmann Holding GmbH & Co. KG Spout and container having such a spout
WO2023196441A1 (fr) * 2022-04-05 2023-10-12 Faulkner James D Emballage résistant aux contaminants

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JP4682569B2 (ja) * 2004-09-21 2011-05-11 凸版印刷株式会社 スパウト
KR101321328B1 (ko) 2006-03-06 2013-10-23 니혼 클로져 가부시키가이샤 복합 스파우트 및 복합 스파우트를 형성하는 사출 성형 장치
JP4848800B2 (ja) * 2006-03-06 2011-12-28 東洋製罐株式会社 複合スパウト及び複合スパウトを形成する射出成形装置
WO2007121437A2 (fr) * 2006-04-17 2007-10-25 Ppi Technologies Global, Llc Support muni d'une pince de préhension intégrale destiné au transport d'un sac d'emballage souple pendant sa fabrication
US8083102B2 (en) * 2006-04-28 2011-12-27 Pouch Pac Innovations, Llc Flexible pouch with a tube spout fitment and flexible sleeve
US7661560B2 (en) * 2006-04-28 2010-02-16 Pouch Pac Innovations, Llc Flexible pouch with a tamper-evident outer cap fitment and method of forming
WO2008057937A2 (fr) * 2006-11-01 2008-05-15 Pouch Pac Innovations, Llc Procédé et appareil pour ouvrir un sachet flexible en utilisant des griffes d'ouverture
WO2008067437A2 (fr) * 2006-11-29 2008-06-05 Pouch Pac Innovations, Llc Système, procédé et machine pour le chargement continu d'un produit
US8562274B2 (en) * 2006-11-29 2013-10-22 Pouch Pac Innovations, Llc Load smart system for continuous loading of a pouch into a fill-seal machine
KR100831377B1 (ko) * 2007-10-22 2008-05-22 해성산업주식회사 친환경 다층 플라스틱 봉투 및 그 제조방법
EP2376346B3 (fr) 2009-07-09 2016-01-13 Advanced Technology Materials, Inc. Système de stockage à poche rigide et méthode de distribution d'un fluide
US8468635B2 (en) * 2009-11-25 2013-06-25 Church & Dwight Co., Inc. Surface treating device
JP5643041B2 (ja) * 2010-09-28 2014-12-17 三笠産業株式会社 注出具の製造方法
WO2012071370A2 (fr) 2010-11-23 2012-05-31 Advanced Technology Materials, Inc. Distributeur à cuve intérieure
BR112013022316A2 (pt) 2011-03-01 2017-05-30 Advanced Tech Materials sistema baseado em revestimento interno, e, método para prover um sistema baseado em revestimento interno
FR2984092B1 (fr) * 2011-12-16 2014-04-04 Oreal Dispositif de conditionnement et de distribution
WO2014055696A1 (fr) * 2012-10-02 2014-04-10 Pedia Solutions Llc Appareil destiné à une administration orale de liquides et d'aliments semi-solides
JP6076072B2 (ja) * 2012-12-21 2017-02-08 大下産業株式会社 スパウト装置および容器
USD712744S1 (en) 2013-03-14 2014-09-09 Silgan White Cap LLC Closure
FR3008078B1 (fr) * 2013-07-08 2016-04-01 Lablabo Dispositif a recipient rigide et poche cylindrique souple pour le conditionnement de fluides.
US9309032B2 (en) 2014-02-17 2016-04-12 Silgan White Cap LLC Dispenser and closure with hinge attached tamper band
USD756777S1 (en) 2014-02-17 2016-05-24 Silgan White Cap LLC Closure
JP6529187B2 (ja) * 2014-06-23 2019-06-12 株式会社細川洋行 袋体用注出具、注出具付袋体、及び、袋体用注出具の製造方法
BR112017006870A2 (pt) * 2014-10-13 2018-03-27 Dow Global Technologies Llc formulações de detergentes dispersíveis em água em forma de bolsa com alto teor de água
JP6468799B2 (ja) * 2014-10-28 2019-02-13 三笠産業株式会社 スパウト付パウチ
USD760081S1 (en) 2014-10-31 2016-06-28 Silgan White Cap LLC Spout
US9533802B2 (en) 2014-10-31 2017-01-03 Silgan White Cap LLC Closure with tamper band and spout
TWI688524B (zh) * 2015-03-17 2020-03-21 美商陶氏全球科技有限責任公司 用於撓性容器之撓性配件
WO2017135958A1 (fr) 2016-02-04 2017-08-10 Silgan White Cap LLC Ensemble récipient avec évent
US9938050B2 (en) 2016-05-13 2018-04-10 Silgan White Cap LLC Closure with hinged tamper band
JP6926412B2 (ja) * 2016-08-08 2021-08-25 凸版印刷株式会社 スパウト付パウチ
US10351315B2 (en) 2017-09-19 2019-07-16 Silgan White Cap LLC Closure with tamper band and spout
US20230040059A1 (en) * 2021-08-09 2023-02-09 Ilc Dover Lp Controlling a fluid flow
WO2023017331A1 (fr) * 2021-08-09 2023-02-16 Winpak Ltd. Bec verseur anti-déversement à ouvertures multiples

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7762430B2 (en) * 2002-12-23 2010-07-27 Deutsche Sisi-Werke Gmbh & Co. Betriebs Kg Closing element with outlet channel extending in funnel-like manner
EP1700794A1 (fr) * 2005-03-11 2006-09-13 Georg Menshen GmbH + Co. KG Bec en matière plastique à être soudé dans un sac
EP1897815A2 (fr) 2006-09-05 2008-03-12 Pöppelmann Holding GmbH & Co. KG. Bec verseur en plastique pour sachet en film
EP1897815A3 (fr) * 2006-09-05 2011-06-01 Pöppelmann Holding GmbH & Co. KG. Bec verseur en plastique pour sachet en film
FR2924691A1 (fr) * 2007-12-06 2009-06-12 Oreal Recipient comportant une poche souple
EP2488423A1 (fr) * 2009-10-16 2012-08-22 PPG Europe B.V. Sachet pour matière colorante de peinture
EP2488423B1 (fr) * 2009-10-16 2016-03-30 PPG Europe B.V. Sachet contenant une composition de colorant
US9132944B2 (en) 2011-01-11 2015-09-15 Pöppelmann Holding GmbH & Co. KG Spout and container having such a spout
WO2015062806A1 (fr) 2013-10-29 2015-05-07 Cavonic GmbH Bec verseur en matière plastique pour emballages en sachets à fond plat, emballage en sachet à fond plat, ainsi que procédé de fabrication
WO2015125071A1 (fr) * 2014-02-24 2015-08-27 Guala Pack S.P.A. Bec imperméable à l'oxygène pour poche souple
US11046505B2 (en) 2014-02-24 2021-06-29 Guala Pack S.P.A. Oxygen impermeable spout for a flexible pouch
WO2023196441A1 (fr) * 2022-04-05 2023-10-12 Faulkner James D Emballage résistant aux contaminants

Also Published As

Publication number Publication date
WO2003029094A1 (fr) 2003-04-10
KR20040032870A (ko) 2004-04-17
EP1449784A4 (fr) 2009-09-23
JPWO2003029094A1 (ja) 2005-01-13
US20050040181A1 (en) 2005-02-24
JP4345482B2 (ja) 2009-10-14

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