CN116142596A - Flow guiding member for container, method for manufacturing the same, and packaging container - Google Patents

Flow guiding member for container, method for manufacturing the same, and packaging container Download PDF

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Publication number
CN116142596A
CN116142596A CN202310101691.3A CN202310101691A CN116142596A CN 116142596 A CN116142596 A CN 116142596A CN 202310101691 A CN202310101691 A CN 202310101691A CN 116142596 A CN116142596 A CN 116142596A
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CN
China
Prior art keywords
barrier
barrier layer
boss
layer
container
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.)
Pending
Application number
CN202310101691.3A
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Chinese (zh)
Inventor
雷莫·泽克
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.)
Kangmeibao Suzhou Co ltd
Original Assignee
Kangmeibao Suzhou Co 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 Kangmeibao Suzhou Co ltd filed Critical Kangmeibao Suzhou Co ltd
Priority to CN202310101691.3A priority Critical patent/CN116142596A/en
Publication of CN116142596A publication Critical patent/CN116142596A/en
Pending 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container
    • B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/40—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper specially constructed to contain liquids
    • 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
    • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/737—Dimensions, e.g. volume or area
    • B32B2307/7375—Linear, e.g. length, distance or width
    • B32B2307/7376—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging

Abstract

The invention provides a flow guiding component for a container, a manufacturing method thereof and a packaging container. The flow guiding member for a container comprises: a tubular portion, a flange connected to and surrounding the tubular portion, and a closure portion located in the tubular portion. The closure portion being located in the tubular portion and configured to seal the tubular portion, the closure portion comprising a first region and a second region surrounding the first region, the closure portion having a different thickness in the second region and the first region; wherein the closure portion and a portion of the flange are formed from a barrier layer comprising a matrix and an oxygen barrier material. By forming the closing portion and part of the flange from a barrier layer comprising a matrix and an oxygen barrier material, the oxygen permeability of the flow guiding member is reduced, thereby improving the gas barrier properties of the flow guiding member and preventing deterioration of the contents of the packaging container.

Description

Flow guiding member for container, method for manufacturing the same, and packaging container
The present application is a divisional application with application number 202211169099.9 and the name of "flow guide member for container, method for manufacturing the same, and packaging container" filed on 26/9/2022.
Technical Field
The invention relates to the field of packaging, in particular to a flow guide part for a container, a manufacturing method thereof and a packaging container.
Background
Packaging containers for food products generally have gas barrier properties to prevent deterioration of contents due to entry of gases such as oxygen from outside the packaging container and to prevent volatilization of effective substances from the contents. When the content is a liquid food such as milk, juice, yoghurt or the like, the packaging container may comprise a flow guiding member for facilitating the outflow of liquid and a lid cooperating with the flow guiding member. In order to prevent the outside air from entering the packaging container, the flow guiding member is also required to have a certain air blocking property.
Disclosure of Invention
The embodiment of the invention provides a flow guide part for a container, a manufacturing method thereof and a packaging container.
A first aspect of the present invention provides a flow guide member for a container, comprising: a tubular portion, a flange connected to and surrounding the tubular portion, and a closure portion located in the tubular portion, wherein the closure portion is located in the tubular portion and is configured to seal the tubular portion, the closure portion comprising a first region and a second region surrounding the first region, the closure portion having a different thickness in the second region and the first region; wherein the closure portion and a portion of the flange are formed from a barrier layer comprising a matrix and an oxygen barrier material.
In at least some embodiments, the mass percent of the matrix in the barrier layer is 12 to 22 times the mass percent of the oxygen barrier material in the barrier layer.
In at least some embodiments, the matrix is 72% to 88% by mass in the barrier layer and the oxygen barrier material is 4% to 6% by mass in the barrier layer.
In at least some embodiments, the matrix is a polyolefin; the oxygen barrier material comprises at least one of a first thermosetting resin and a second thermosetting resin, wherein the first thermosetting resin is ethylene-vinyl alcohol copolymer or polyvinyl alcohol, and the second thermosetting resin is polyamide.
In at least some embodiments, the barrier layer further comprises an adhesive material, the mass percent of the adhesive material in the barrier layer being 1 to 3 times the mass percent of the oxygen barrier material in the barrier layer.
In at least some embodiments, the mass percent of the bonding material in the barrier layer is between 6% and 12%.
In at least some embodiments, the adhesive material is an anhydride grafted polyolefin, wherein the mass percent of anhydride in the anhydride grafted polyolefin is greater than 1%.
In at least some embodiments, when the oxygen barrier material is an ethylene vinyl alcohol copolymer, the mass percent of the adhesive material in the barrier layer is 8% to 10%; when the oxygen barrier material is polyamide, the mass percentage of the adhesive material in the barrier layer is 6-8%.
In at least some embodiments, the tubular portion includes a first nozzle and a second nozzle opposite one another in a direction of extension thereof; wherein the flange comprises a boss connected to the first nozzle and extending in a radial direction of the tubular portion in a direction away from the first nozzle; wherein the closing portion and the boss are formed by the barrier layer.
In at least some embodiments, the orthographic projection of the tubular portion onto the plane of the closure portion falls within the orthographic projection of the barrier layer onto the plane of the closure portion.
In at least some embodiments, the barrier layer comprises: a first barrier for forming the closure portion; a second barrier portion for forming the boss and connected to the first barrier portion; wherein the first barrier has a first thickness in a direction perpendicular to a plane in which the closing portion is located, and the second barrier has a second thickness in a direction perpendicular to a plane in which the closing portion is located, wherein the first thickness is smaller than the second thickness.
In at least some embodiments, the first barrier and the second barrier are of unitary construction.
In at least some embodiments, the first barrier comprises: a first portion located in the first region of the enclosed portion; a second portion located in the second region of the enclosed portion; wherein the first portion has a third thickness in a direction perpendicular to a plane in which the closed portion lies, and the second portion has a fourth thickness in a direction perpendicular to a plane in which the closed portion lies; wherein the fourth thickness is less than the third thickness.
In at least some embodiments, the first portion and the second portion are of unitary construction.
In at least some embodiments, wherein the flange further comprises a boss sidewall connected to the boss, wherein the boss comprises a first side and a second side opposite each other along the direction of extension of the tubular portion, the tubular portion being located on the first side, the boss sidewall being located on the second side; wherein the closure portion, the boss and the boss sidewall are formed from the barrier layer.
In at least some embodiments, the orthographic projection of the boss onto the plane of the closed portion falls within the orthographic projection of the barrier layer onto the plane of the closed portion.
In at least some embodiments, the barrier layer comprises: a first barrier for forming the closure portion; a second barrier portion for forming the boss and connected to the first barrier portion; and a third blocking portion for forming the boss sidewall and connected to the second blocking portion.
In at least some embodiments, the first barrier, the second barrier, and the third barrier are a unitary structure.
In at least some embodiments, the barrier layer comprises a laminate structure comprising a base layer and an oxygen barrier layer disposed in a laminate, the base layer comprising the base, the oxygen barrier layer comprising the oxygen barrier material.
In at least some embodiments, the base layer includes a first sub-layer and a second sub-layer, wherein the oxygen barrier layer is sandwiched between the first sub-layer and the second sub-layer.
In at least some embodiments, the barrier layer includes a first barrier located on an inner side of the tubular portion and a second barrier located on an outer side of the tubular portion, the first barrier including the laminated structure.
In at least some embodiments, the second barrier comprises the laminate structure.
In at least some embodiments, the barrier layer further comprises a third barrier portion located outside of the tubular portion, the third barrier portion being connected to the first barrier portion by the second barrier portion, wherein the first barrier portion, the second barrier portion, and the third barrier portion each comprise the laminated structure.
A second aspect of the present invention provides a packaging container comprising the aforementioned container baffle member.
A third aspect of the present invention provides a method for manufacturing a flow guide member for a container, the flow guide member comprising: a tubular portion, a flange connected to and surrounding the tubular portion, and a closure portion located in the tubular portion; the closure portion being arranged to lie in the tubular portion and being configured to seal the tubular portion, the closure portion comprising a first region and a second region surrounding the first region, the closure portion having a different thickness in the second region and the first region; wherein the manufacturing method comprises the following steps: the closure portion and a portion of the flange are formed with a barrier layer, wherein the barrier layer comprises a matrix and an oxygen barrier material.
In at least some embodiments, the flange includes a boss connected to the tubular portion; said forming said closure portion and part of said flange with a barrier layer comprises: the closing portion and the boss are formed with the barrier layer.
In at least some embodiments, the flange further comprises a boss sidewall connected to the boss; said forming said closure portion and part of said flange with a barrier layer comprises: the closure portion, the boss, and the boss sidewall are formed using the barrier layer.
In at least some embodiments, the barrier layer is formed by a co-injection molding process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present invention and are not limiting of the present invention.
Fig. 1 is a schematic structural view of a packaging container according to an embodiment of the present invention;
FIG. 2A is a schematic structural diagram of a flow guiding component according to an embodiment of the present invention;
FIG. 2B is an exploded view of a self-opening mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the flow directing member of FIG. 2A;
FIG. 4 is a top view of a closure portion provided in an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a barrier layer according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a barrier layer according to another embodiment of the present invention;
FIG. 7 is a partial cross-sectional photograph of a baffle member of example 1 of the present invention;
FIG. 8 is a partial cross-sectional photograph of a baffle member of example 2 of the present invention;
fig. 9 is a photograph of a flange crack on a baffle member according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present before "comprising" or "including" encompass the elements or items listed thereafter and equivalents thereof as well as additional elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.
The embodiment of the invention provides a flow guide part for a container, a manufacturing method thereof and a packaging container, which can improve the gas barrier performance of the packaging container and prevent the content in the packaging container from deteriorating.
The flow guiding component for the container provided by the embodiment of the invention comprises: the device comprises a tubular portion, a flange connected to and surrounding the tubular portion, and a closure portion located in the tubular portion. The closure portion is located in the tubular portion and is configured to seal the tubular portion, the closure portion including a first region and a second region surrounding the first region, the closure portion having a different thickness in the second region and the first region. The closure portion and a portion of the flange are formed from a barrier layer comprising a matrix and an oxygen barrier material.
In the flow guiding member for a container provided in the above embodiment, the sealing portion and the partial flange are formed of the barrier layer including the base and the oxygen blocking material, so that the oxygen permeability of the flow guiding member is reduced, thereby improving the gas blocking performance of the flow guiding member and preventing the deterioration of the content in the packaging container.
The invention is illustrated by the following specific examples. Detailed descriptions of known functions and known components may be omitted as so as to not obscure the description of the embodiments of the present invention. When any element of an embodiment of the present invention appears in more than one drawing, the element may be referred to by the same reference numeral in each drawing.
Fig. 1 is a schematic structural view of a packaging container according to an embodiment of the present invention. Fig. 2A is a schematic structural diagram of a flow guiding component according to an embodiment of the present invention. Fig. 3 is a schematic cross-sectional view of the flow directing member of fig. 2A.
As shown in fig. 1, a packaging container 1000 according to an embodiment of the present invention includes: a baffle member 100, a swivel cap 200 (i.e., cap), and a housing 300.
As shown in fig. 1, for example, housing 300 includes a top 301, sides 302, and a bottom 303. In the vertical direction (z-direction as shown) the side 302 is connected between the top 301 and the bottom 303. The top 301 has an end opening 310, which end opening 310 is connected to the flow guiding member 100.
In order to prevent deterioration of the contents such as the liquid, the case 300 may be formed by folding a sheet-like composite layer. For example, the sheet-like composite layer includes a pattern-printable ink layer, an outer polymer layer, a support layer, a water-and oxygen-blocking layer, an inner polymer layer, and the like, which are disposed in this order from the outer surface to the inner surface of the housing 300.
While the embodiment of the present invention is described with respect to the top 301 being a mountain top, it will be appreciated that in other embodiments, the top 301 may be in other shapes such as a plane, and the embodiment of the present invention is not limited thereto.
As shown in fig. 2A and 3, the flow guiding member 100 includes, for example: a tubular portion 11, a flange 12 connected to the tubular portion 11 and surrounding the tubular portion 11, and a closing portion 13 (not shown in fig. 2A) located in the tubular portion 11.
As shown in fig. 3, the tubular portion 11 extends in the z-direction (including +z or-z direction) and includes a first nozzle 11A and a second nozzle 11B that are opposite to each other in the z-direction. The rotary cap 200 is rotatably covered on the second nozzle 11B.
In some embodiments, the tubular portion 11 includes external connection structure, such as external threads 111, on an outer wall thereof. The rotary cap 200 includes a connection structure, such as internal threads, on an inner sidewall thereof that are configured to mate with the external threads 111 of the tubular portion 11. In this way, when the second nozzle 11B of the tubular portion 11 is opened or sealed with the rotary cap 200, it can be achieved by the external thread 111 of the tubular portion 11 and the internal thread of the rotary cap 200 being disengaged from or engaged with each other, thereby improving sealability and convenience in use of the packaging container.
While the embodiments of the present invention are described with respect to a cap as a rotatable cap 200, it will be appreciated that in other embodiments the cap may be a cap having other structures such as a snap-fit connection, as long as it is convenient to attach the cap to the baffle member multiple times.
As shown in fig. 3, the closing portion 13 is located in the tubular portion 11 and is configured to seal the tubular portion 11. For example, the closing portion 13 extends in a direction perpendicular to the extending direction (for example, x direction shown in the drawing) of the tubular portion 11, thereby spatially dividing the flow guiding member 100 into an upper space SP1 located in the tubular portion 11 and a lower space SP2 communicating with the housing 300. By providing the closing portion 13, it is possible to keep the contents from flowing into the flow guiding member 100 until the packaging container 1000 is used for the first time, so as to prevent the contents from leaking or deteriorating.
Fig. 4 is a top view of a closure portion provided in an embodiment of the present invention.
As shown in fig. 3 and 4, the closing portion 13 includes a first region 131 and a second region 132 surrounding the first region 131. The thickness of the closed portion 13 is different in the second region 132 and the first region 131.
For example, the closing portion 13 further includes a central portion located in the first region 131 and a peripheral portion located in the second region 132 and surrounding the central region. The thickness of the central portion is greater than the thickness of the peripheral portion. In this way, when it is desired to pour the contents, it is easier to cut or scratch the peripheral portion in the second region 132, thereby facilitating the outflow of the contents through the flow guide member.
While the embodiments of the present invention are described with respect to the cross-sectional shape of the tubular portion 11 as a circle, it will be appreciated that in other embodiments, the tubular portion 11 may have a regular shape such as an oval, a rectangle, a triangle, or an irregular shape, and the embodiments of the present invention are not limited thereto.
Accordingly, while the present embodiment is described with respect to a circular closure portion 13, it is to be understood that in other embodiments, the closure portion 13 may have a cross-sectional shape that matches the cross-sectional shape of the tubular portion 11, such as, for example, a regular shape or an irregular shape, such as, for example, an oval, a rectangle, a triangle, etc., and the present embodiment is not limited thereto. As shown in fig. 4, when the closing portion 13 is circular, the first region 131 is circular disk-shaped, and the second region 132 is circular ring-shaped.
As shown in fig. 3, the tubular portion 11 may also include an internal connection structure, such as internal threads 112, on an inner wall thereof. In some embodiments, the packaging container 1000 may include a self-opening mechanism, and fig. 2B is an exploded schematic view of the self-opening mechanism according to an embodiment of the present invention. As shown in fig. 2B, the self-opening mechanism includes a wall portion 211 and a self-opening sleeve 212 that may be in a separated state. The wall portion 211 is located inside the spin cover 200 and is configured to rotate together with the spin cover 200. For example, the wall portion 211 is disposed coaxially with the rotation axis of the spin cover 200, and when the spin cover 200 is rotated, the wall portion 211 is driven to coaxially rotate.
For example, the self-opening sleeve 212 is located in the tubular portion 11 and has external threads on its outer wall so that it mates with the internal threads 112 of the tubular portion 11 and is rotationally movable in a direction away from the housing 300 (e.g., the +z direction shown in the drawing) or in a direction toward the housing 300 (e.g., the-z direction shown in the drawing).
For example, the self-opening sleeve 212 is provided coaxially with the tubular portion 11, and is configured such that when the wall portion 211 of the rotary cap 200 is rotationally moved upward in the +z direction, the self-opening sleeve 212 is rotationally moved downward in the-z direction.
In some embodiments, the self-opening sleeve 212 is provided with a tip 212a at an end proximate to the housing 300, the tip 212a configured to rotate with rotation of the self-opening sleeve 212 to pierce or scratch the closure portion 13. For example, when it is desired to open the packaging container for the first time, the rotary cap 200 is rotated and moved in the +z direction, at which time the self-opening sleeve 212 may be simultaneously rotated and moved in the-z direction, such that the tip 212a of the self-opening sleeve 212 cuts the annular peripheral portion of the closing portion 13 from the second region 132, and continuing to rotate the rotary cap 200, the tip 212a cuts the entire peripheral portion along the second region 132, causing the disc-shaped central portion to drop.
As shown in fig. 2A and 3, the flange 12 is provided around the tubular portion 11, for example, around the first nozzle 11A of the tubular portion 11.
In some embodiments, the closure portion 13 and a portion of the flange 12 are formed from a barrier layer 10, the barrier layer 10 comprising a matrix and an oxygen barrier material. By adding an oxygen barrier material in the barrier layer, the oxygen barrier of the closure portion 13 and part of the flange 12 can be increased, the oxygen permeability of the packaging container can be reduced, and deterioration of the contents can be avoided.
As shown in fig. 3, for example, the flange 12 includes a boss 121 and a boss side wall 122 connected to the boss 121. The boss 121 is connected to the first nozzle 11A and extends in a radial direction (e.g., x-direction shown in the drawing) of the tubular portion 11 in a direction away from the first nozzle 11A. The closing portion 13 and the boss 121 are formed by the barrier layer 10.
In some cases, when only the closing portion 13 is formed of the barrier layer 10 and the boss 121 is not formed of the barrier layer, since the boss 121 is exposed to the air, the outside gas or air may still enter the packaging container 1000 through the boss 121. Therefore, although the closed portion 13 has the oxygen blocking property, the boss 121 has the oxygen blocking property slightly worse than the closed portion 13.
In contrast, in the embodiment of the present invention, by forming both the boss 121 and the closing portion 13 of the barrier layer 10, the oxygen barrier properties of the boss 121 and the closing portion 13 are improved, thereby effectively reducing the oxygen permeability of the packaging container and preventing the deterioration of the contents.
As shown in fig. 3, for example, the boss 121 and the closing portion 13 are integrally formed, for example, by co-injection molding, so that the barrier layer 10 can extend from the closing portion 13 to the boss 121 when the closing portion 13 and the boss 121 are manufactured.
For example, the orthographic projection of the tubular portion 11 on the plane P of the closing portion 13 falls into the orthographic projection of the barrier layer 10 on the plane P of the closing portion 13. That is, the orthographic projection of the barrier layer 10 exceeds the area where the tubular portion 11 is located, thereby further improving the oxygen barrier properties of the boss 121 and the packaging container 1000.
For example, the barrier layer 10 includes a first barrier 101 and a second barrier 102. The first barrier 101 is used to form the closing portion 13 and the second barrier 102 is used to form the boss 121 and is connected to the first barrier 101. The first barrier 101 has a first thickness in the z-direction and the second barrier 102 has a second thickness in the z-direction. For example, the first thickness is less than the second thickness.
In the embodiment of the present invention, the thicknesses of the first blocking portion 101 and the second blocking portion 102 may be the same or different. Compared with the case that the first thickness and the second thickness are equal, the first thickness is smaller than the second thickness, on the one hand, when the packaging container is opened, the closing portion 13 is thinner due to the smaller first thickness of the first blocking portion 101, so that the tearing or the ripping is facilitated; on the other hand, the second thickness of the second blocking portion 102 is larger, so that the oxygen blocking performance of the boss can be further improved.
In the embodiment of the present invention, the first blocking portion 101 and the second blocking portion 102 may be integrally formed, so that the two may be integrally formed, and the manufacturing process is simplified.
As shown in fig. 3, the first barrier 101 comprises a first portion 101a and a second portion 101b. The first portion 101a is located in a first region 131 of the enclosed portion 13 and the second portion 101b is located in a second region 132 of the enclosed portion 13. The first portion 101a has a third thickness in the z-direction and the second portion 101b has a fourth thickness in the z-direction, the fourth thickness being less than the third thickness.
In the present embodiment, the fourth thickness is smaller than the third thickness, and the thickness of the first blocking portion 101 in the annular first region 131 is smaller than that in the disc-shaped central portion, which is more advantageous for easily tearing or ripping the closed portion. When the fourth thickness is smaller than the third thickness, the first thickness of the first blocking portion 101 is an average value of the third thickness and the fourth thickness.
Further, for example, the fourth thickness is less than 50%, preferably less than 30% of the third thickness. For example, the fourth thickness is 0.2 to 0.3mm, and the third thickness is 0.6 to 1mm.
In some embodiments, the first portion and the second portion of the first blocking portion 101 are integrally formed, so as to facilitate the integral formation of the first portion and the second portion, and simplify the manufacturing process.
As shown in fig. 3, flange 12 further includes boss sidewall 122 connected to boss 121. The end opening 310 of the top 301 of the housing 300 is attached to the boss sidewall 122 to effect connection with the baffle member 100.
Without the provision of the boss side walls 122, the end openings 310 of the top 301 are directly connected to the bosses 121, which may result in poor sealability therebetween, thereby affecting the oxygen barrier properties of the packaging container. In the embodiment of the invention, the boss side wall 122 is arranged, so that the sealing performance of the packaging container is improved, and the oxygen barrier performance of the packaging container is also improved.
As shown in fig. 2A, the number of the boss side walls 122 may be plural, for example, four, it will be appreciated that the number of the boss side walls 122 is not limited in the embodiment of the present invention, and the number may be determined according to the shape of the packaging container.
As shown in fig. 3, for example, the boss 121 includes a first side 121A and a second side 121B opposite to each other in the z-direction, the tubular portion 11 is located at the first side 121A, and the boss side wall 122 is located at the second side 121B. For example, the closing portion 13, the boss 121 and the boss side wall 122 are formed by the barrier layer 10.
In this embodiment, by forming the sealing portion 13, the boss 121 and the boss side wall 122 from the barrier layer 10, not only the oxygen barrier performance of the sealing portion 13, the boss 121 and the boss side wall 122 can be improved at the same time, but also the three can be formed integrally, and the manufacturing process can be simplified.
For example, the closing portion 13, the boss 121 and the boss side wall 122 are integrally formed, such as by co-injection molding, so that the barrier layer 10 may extend from the closing portion 13 to the boss 121 and the boss side wall 122, and the closing portion 13, the boss 121 and the boss side wall 122 are conveniently integrally formed.
For example, the orthographic projection of the boss 121 on the plane P of the closing portion 13 falls into the orthographic projection of the barrier layer 10 on the plane P of the closing portion 13. That is, the orthographic projection of the barrier layer 10 exceeds the area where the boss 121 is located, thereby further improving the oxygen barrier properties of the boss 121, the boss side wall 122, and the packaging container 1000.
As shown in fig. 3, the barrier layer 10 further includes a third barrier 103 for forming a boss sidewall 122 and being connected to the second barrier 102. The first blocking portion 101, the second blocking portion 102 and the third blocking portion 103 are integrally formed, so that they can be integrally formed, and the manufacturing process is simplified.
FIG. 5 is a schematic cross-sectional view of a barrier layer according to an embodiment of the present invention. As shown in fig. 5, the barrier layer 10 includes a laminated structure LS including, for example, a base layer 401 and an oxygen barrier layer 402 that are laminated, the base layer 401 including a base, and the oxygen barrier layer 402 including an oxygen barrier material. In fig. 5, the base layer 401 of the barrier layer 10 is a single layer.
FIG. 6 is a schematic cross-sectional view of a barrier layer according to another embodiment of the present invention. Unlike fig. 5, the base layer of fig. 6 is a plurality of layers, for example, a bilayer.
As shown in fig. 6, the barrier layer 10 includes a laminated structure LS including, for example, a base layer 401 and an oxygen barrier layer 402 that are laminated. The base layer 401 includes a first sub-layer 411 and a second sub-layer 412, with the oxygen barrier layer 402 sandwiched between the first sub-layer 411 and the second sub-layer 412. In this case, the first sub-layer 411 and the second sub-layer 412 each include a matrix, and the oxygen barrier layer 402 includes an oxygen barrier material.
As mentioned before, for example, the barrier layer 10 comprises a first barrier 101 located inside the tubular portion 11 and a second barrier 102 and a third barrier 130 located outside the tubular portion 11.
For example, when the encapsulation portion 13 is formed by the first barrier 101, the first barrier may include the stacked structure LS in fig. 5 or 6.
For example, when the package part 13 is formed of the first barrier 101 and the boss 121 is formed of the second barrier 102, both the first barrier 101 and the second barrier 102 include the laminated structure LS of fig. 5 or 6, which is advantageous in that both are integrally formed, simplifying the manufacturing process.
For example, when the package part 13 is formed of the first barrier 101, the boss 121 is formed of the second barrier 102, and the boss sidewall 122 is formed of the third barrier 103, the first barrier 101, the second barrier 102, and the third barrier 103 each include the lamination structure LS of fig. 5 or 6, which is advantageous in that the three are integrally formed, simplifying the manufacturing process.
In embodiments of the invention, the matrix is for example a polyolefin, which may comprise polypropylene or polyethylene, preferably polyethylene, such as high density polyethylene (High Density Polyethylene, HDPE), to improve the stability of the barrier layer and to ensure the tightness of the interior of the packaging container.
The Melt Flow Rate (MFR) of the matrix material needs to be greater than 8g/10min (190 ℃,2.16 kg), preferably greater than 16g/10min (190 ℃,2.16 kg), test method ASTM D1238. Since the barrier film portion is thin, too low an MFR can result in the barrier layer portion being unshaped.
The 1% Secant Modulus (1% seal Modulus) of the matrix material should be less than 1800Mpa, preferably less than 1200Mpa. Test method ASTM D638). If too large, the cutting ring will not be able to open the film.
In some embodiments, the mass percent of the matrix in the barrier layer 10 is 12-22 times the mass percent of the oxygen barrier material in the barrier layer 10. For example, the mass percentage of the matrix in the barrier layer 10 is 72% -88%, so that the stability of the barrier layer is further improved, and the sealing performance of the packaging container is ensured. Good oxygen barrier properties can be obtained within the above range. The mass percentage of the oxygen barrier material in the barrier layer 10 is 4% -6%, so that the gas barrier performance of the barrier layer is improved, and the oxygen permeability is reduced.
In the embodiment of the invention, "mass percent of A in B" refers to the proportion of the mass of A in the mass of B, which can be expressed in wt%.
In the embodiment of the present invention, the oxygen barrier material includes at least one of the first thermosetting resin and the second thermosetting resin, that is, the oxygen barrier material may include one of the first thermosetting resin and the second thermosetting resin, or both.
For example, the first thermosetting resin is an ethylene/vinyl alcohol copolymer (EVOH) or polyvinyl alcohol (PVA), and the second thermosetting resin is a Polyamide (PA). EVOH has good barrier property to gas, and has excellent transparency, glossiness, mechanical strength, stretchability, wear resistance, cold resistance and surface strength. Polyamide (PA) is weak acid, weak base and most nonpolar solvents, has good stability and also has good barrier properties to gases. PA is preferable because it is lower in cost and less sensitive to air humidity than EVOH.
For example, the barrier layer 10 may also include an adhesive material for enhancing the adhesion between the substrate and the barrier material, providing good cohesion between the layers. For example, the adhesive material is an anhydride modified polymer concentrate that can be mixed into a matrix (e.g., polyolefin) as a blending component.
For example, the mass percentage of the adhesive material in the barrier layer 10 is 1 to 3 times the mass percentage of the oxygen barrier material in the barrier layer 10. In some embodiments, the mass percent of the adhesive material in the barrier layer 10 is 6% to 12%, thereby further enhancing the adhesion between the matrix and the barrier material.
In an embodiment of the present invention, the adhesive material may be an anhydride grafted polyolefin, such as a maleic anhydride grafted polyolefin, wherein the mass percent of anhydride in the anhydride grafted polyolefin is greater than 1%. In some embodiments, the anhydride grafted polyolefin may be a maleic anhydride grafted polyolefin, wherein the mass percent of maleic anhydride in the maleic anhydride grafted polyolefin is greater than 1%. For example, the adhesive material is maleic anhydride grafted High Density Polyethylene (HDPE).
In actual production, the content of the appropriate binding material can be selected according to the composition of the oxygen barrier material. For example, when the oxygen barrier material is EVOH, the mass percentage of the adhesive material in the barrier layer is more than 6%, preferably 8 to 10%. Because below 8% cracks are more likely to occur at the corners of the flange, as shown for example in fig. 9.
For another example, when the oxygen barrier material is PA, the mass percentage of the adhesive material in the barrier layer is greater than 4%, preferably 6% to 8%. The best oxygen barrier effect is obtained when the mass percentage of the adhesive is 6-8%, and the test method is referred to ASTM D3985.
In the embodiment of the invention, the barrier layer can also comprise color master batches, slip agents and the like so as to enhance the light-blocking performance and the smoothness.
The invention also provides a manufacturing method of the flow guiding component for the container. For example, the method of manufacturing may manufacture the container baffle member described in any of the previous embodiments.
Referring to fig. 1 to 6, in the manufacturing method according to the embodiment of the present invention, a container flow guiding member 100 includes: a tubular portion 11, a flange 12 connected to the tubular portion 11 and surrounding the tubular portion 11, and a closing portion 13 located in the tubular portion 11. The closing portion 13 is arranged to be located in the tubular portion 11 and is configured to seal the tubular portion 11. The closing portion 13 includes a first region 131 and a second region 132 surrounding the first region 131, and the thickness of the closing portion 13 is different in the second region 132 and the first region 131. The manufacturing method comprises the following steps: the closing portion 13 and part of the flange 12 are formed by means of a barrier layer 10, wherein the barrier layer 10 comprises a matrix and an oxygen barrier material.
For example, the flange 12 comprises a boss 121 connected to the tubular portion 11, and the step of forming the closing portion 13 and part of the flange 12 with the barrier layer 10 comprises: the closing portion 13 and the boss 121 are formed by the barrier layer 10. Thus, not only the oxygen barrier performance of the closing portion 13 and the boss 121 is improved, but also the closing portion 13 and the boss 121 are integrally formed, and the manufacturing process is simplified.
For example, the flange 12 may further include a boss sidewall 122 connected to the boss 121, and the step of forming the closed portion 13 and a portion of the flange 12 using the barrier layer 10 may include: the closing portion 13, the boss 121 and the boss side wall 122 are formed using the barrier layer 10. Thus, not only the oxygen barrier performance of the closing portion 13, the boss 121 and the boss side wall 122 is improved, but also the closing portion 13, the boss 121 and the boss side wall 122 are integrally formed, and the manufacturing process is simplified.
In an embodiment of the present invention, the barrier layer 10 may be formed by a co-injection (co-injection) method. Since the barrier layer 10 has a laminated structure, if each layer is formed separately, difficulty in the manufacturing process is increased, and uniformity and stability of the quality of the flow guide member cannot be ensured. When the barrier layer 10 is formed by adopting the coinjection molding method, the manufacturing process is simplified, the cost of manpower and material resources is saved, and better product consistency and stability can be obtained.
In forming the barrier layer by a co-injection method, for example, the substrate is a skin material and the barrier material is a sandwich material. In the filling process, the matrix is filled first and the barrier material is refilled. The materials in the co-injection process are combined during the filling process and are therefore easier to control than chemical and mechanical processes. For example, in fig. 3, the protrusion located at the center point portion of the closing portion 13 is a filling position point when the barrier layer is formed by the coinjection molding method.
The following is an example of a flow directing member in a container provided by the present invention.
Example 1
Referring to fig. 3, the closed portion 13, the boss 121, and the boss sidewall 122 of the flow guide member 100 are formed using a co-injection molding method and using a barrier layer.
1) Composition of the barrier layer:
a substrate: HDPE (high-density polyethylene)
Oxygen barrier material: ethylene/vinyl alcohol EVOH (Kuraray EVOH XEP-1248A), 3.5-4 wt%
And (2) an adhesive: maleic anhydride grafted HDPE,8wt%.
2) Test results:
oxygen permeability (OTR) of packaging container at 50% RH (air humidity): 0.5.+ -. 0.1 ml/(m) 2 Years of age)
Oxygen permeability (OTR) of packaging container at 90% RH (air humidity): about 3 ml/(m) 2 Year).
Fig. 7 is a partial cross-sectional photograph of a baffle member of example 1 of the present invention. As can be seen in fig. 7, the closing portion 13 of the flow guiding member, the boss 121 and the boss side wall 122 are all formed by the barrier layer 10. The barrier layer 10 comprises a first sub-layer 411 of a matrix layer, a second sub-layer 412 and an interlayer-oxygen barrier layer 402 located therebetween.
Example 2
Referring to fig. 3, the closed portion 13, the boss 121, and the boss sidewall 122 of the flow guide member 100 are formed using a co-injection molding method and using a barrier layer.
1) Composition of the barrier layer:
a substrate: HDPE (high-density polyethylene)
Oxygen barrier material: polyamide PA (Mitsubishi MX Nylon S6003 LD), 6wt%
And (2) an adhesive: maleic anhydride grafted HDPE is 4wt%, 6wt%, 8wt%, 10wt%, 12wt%, respectively.
2) Test results: table 1 shows the results of the oxygen permeability test of the packaging materials when different amounts of the adhesive were used.
TABLE 1
Figure BDA0004086154890000141
As seen from Table 1, when the mass percentage of the adhesive in the barrier layer is 6% to 8%, the oxygen permeability of the packaging container at 50% RH (air humidity) is less than 1 ml/(m) 2 Year) and the oxygen permeability of the packaging container at 90% RH (air humidity) is also less than 1 ml/(m) 2 Year).
Fig. 8 is a partial cross-sectional photograph of a baffle member of example 2 of the present invention. As can be seen in fig. 8, the closing portion 13 of the flow guiding member, the boss 121 and the boss side wall 122 are all formed by the barrier layer 10. The barrier layer 10 comprises a first sub-layer 411 of a matrix layer, a second sub-layer 412 and an interlayer-oxygen barrier layer 402 located therebetween.
As can be seen from comparative examples 1 and 2, when polyamide PA is used as the oxygen barrier material, a lower oxygen permeability can be obtained at 90% rh (air humidity).
In the flow guiding component for the container, the manufacturing method thereof and the packaging container provided by the embodiment of the invention, the sealing part and part of the flange are formed by the barrier layer comprising the matrix and the oxygen blocking material, so that on one hand, the oxygen permeability of the flow guiding component can be reduced, the air blocking performance of the flow guiding component is improved, and the content in the packaging container is prevented from deteriorating; on the other hand, the sealing part and part of the flange can be integrally formed, the manufacturing process is simplified, the cost of manpower and material resources is saved, and particularly when the sealing part and part of the flange are formed by a coinjection molding method, the manufacturing process is further simplified, and better product consistency and stability can be obtained.
In the examples of the present disclosure, the high density polyethylene HDPE employed was Sabic HDPE CC2056, the melt flow ratio (tested according to ISO 1133 at 190 degrees Celsius, 2.16kg conditions) was 20dg/min, and the density was 956kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The maleic anhydride grafted high density polyethylene used was DuPont TM
Figure BDA0004086154890000151
E265, a melt flow ratio (measured according to ISO 1133 at 190 ℃ C., 2.16 kg) of 12dg/min, a density of 950kg/m 3 Maleic anhydride content>1.0wt％。
In the disclosed embodiments, the test method of oxygen permeability (OTR) is oxygen permeability data tested according to coulombic method specified in ASTM D3985 standard. The test equipment is
Figure BDA0004086154890000152
2/22H type oxygen permeation tester. The specific test method comprises the following steps:
1) The temperature of the test environment is controlled at 23 ℃ and is less than 1% relative humidity, for example, a Schneider SUA0501 type precise air conditioner can be adopted for control;
2) The package to be tested is cut, leaving the lid and part of the top 301, andone end of the top 301 is sealed and adhered by epoxy resin
Figure BDA0004086154890000153
2/22H-type oxygen permeation tester;
3) After the sample is fixed, according to specific requirements, use
Figure BDA0004086154890000154
The control panel of the 2/22H-type oxygen permeation tester adjusts the test temperature and the relative humidity to a preset value (such as 23 ℃ C., 50% relative humidity);
4) Introducing a mixed gas containing 98% (volume percent) of nitrogen and 2% (volume percent) of hydrogen into the test rack for 7 hours to remove oxygen in the system;
5) The oxygen is fed into the test frame for 24 hours by using carrier gas (the carrier gas is mixed gas containing 98 percent by volume of nitrogen and 2 percent by volume of hydrogen), the obtained result is the oxygen permeability of the tested sample for one day, and the result multiplied by 365 is the oxygen permeability of the tested sample for one year.
In this context, the following points need to be noted:
(1) The drawings of the embodiments of the present invention relate only to the structures related to the embodiments of the present invention, and other structures may refer to the general designs.
(2) The embodiments of the invention and the features of the embodiments can be combined with each other to give new embodiments without conflict.
(3) The foregoing is merely exemplary embodiments of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims.
The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (24)

1. A flow directing member for a container, comprising: a tubular portion, a flange connected to and surrounding the tubular portion, and a closure portion located in the tubular portion,
wherein the closure portion is located in the tubular portion and is configured to seal the tubular portion, the closure portion comprising a first region and a second region surrounding the first region, the closure portion having a different thickness in the second region and the first region;
wherein the closure portion and a portion of the flange are formed from a barrier layer comprising a matrix and an oxygen barrier material, the barrier layer being formed by a co-injection process such that the closure portion and a portion of the flange are formed as a unitary structure;
the barrier layer comprises a laminated structure, the laminated structure comprises a substrate layer and an oxygen barrier layer which are laminated, the substrate layer comprises a first sub-layer and a second sub-layer, and the oxygen barrier layer is sandwiched between the first sub-layer and the second sub-layer;
the substrate layer comprises the substrate, the oxygen barrier layer comprises the oxygen barrier material, the substrate is polyolefin, the oxygen barrier material comprises at least one of first thermosetting resin and second thermosetting resin, the first thermosetting resin is ethylene-vinyl alcohol copolymer or polyvinyl alcohol, and the second thermosetting resin is polyamide; the mass percentage of the oxygen blocking material in the blocking layer is 4% -6%.
2. The flow guide member for a container according to claim 1, wherein the mass percentage of the base body in the barrier layer is 12 times to 22 times the mass percentage of the oxygen barrier material in the barrier layer.
3. A flow directing member for a container according to claim 2, wherein the mass percentage of the matrix in the barrier layer is 72% to 88%.
4. The flow directing member for a container according to claim 2, wherein the barrier layer further comprises an adhesive material, the mass percentage of the adhesive material in the barrier layer being 1 to 3 times the mass percentage of the oxygen-blocking material in the barrier layer.
5. The flow guide member for a container according to claim 4, wherein the mass percentage of the adhesive material in the barrier layer is 6% to 12%.
6. The flow directing member for a container of claim 4, wherein the adhesive material is an anhydride grafted polyolefin, wherein the mass percent of anhydride in the anhydride grafted polyolefin is greater than 1%.
7. The flow directing member for a container according to claim 5, wherein,
when the oxygen barrier material is ethylene-vinyl alcohol copolymer, the mass percentage of the adhesive material in the barrier layer is 8-10%;
When the oxygen barrier material is polyamide, the mass percentage of the adhesive material in the barrier layer is 6-8%.
8. The flow guide member for a container according to claim 1,
wherein the tubular portion includes a first nozzle and a second nozzle opposite to each other in an extending direction thereof;
wherein the flange comprises a boss connected to the first nozzle and extending in a radial direction of the tubular portion in a direction away from the first nozzle;
wherein the closing portion and the boss are formed by the barrier layer.
9. A container baffle as claimed in claim 8, wherein the orthographic projection of the tubular portion onto the plane of the closure portion falls within the orthographic projection of the barrier layer onto the plane of the closure portion.
10. The flow guide member for a container according to claim 8,
wherein the barrier layer comprises:
a first barrier for forming the closure portion;
a second barrier portion for forming the boss and connected to the first barrier portion;
wherein the first blocking portion has a first thickness in a direction perpendicular to a plane in which the closing portion is located, and the second blocking portion has a second thickness in a direction perpendicular to a plane in which the closing portion is located, the first thickness being smaller than the second thickness.
11. The flow directing member for a container of claim 10, wherein the first barrier and the second barrier are of unitary construction.
12. The flow guide member for a container according to claim 10,
wherein the first blocking portion comprises:
a first portion located in the first region of the enclosed portion;
a second portion located in the second region of the enclosed portion;
wherein the first portion has a third thickness in a direction perpendicular to a plane in which the closing portion is located, and the second portion has a fourth thickness in a direction perpendicular to the plane in which the closing portion is located, the fourth thickness being smaller than the third thickness.
13. The flow directing member for a container of claim 12, wherein the first portion and the second portion are of unitary construction.
14. The flow guide member for a container according to claim 8,
wherein the flange further comprises a boss side wall connected to the boss;
wherein the boss includes a first side and a second side opposite to each other along an extending direction of the tubular portion, the tubular portion being located at the first side, the boss side wall being located at the second side;
Wherein the closure portion, the boss and the boss sidewall are formed from the barrier layer.
15. A container baffle as claimed in claim 14, wherein the orthographic projection of the boss on the plane of the closure portion falls within the orthographic projection of the barrier layer on the plane of the closure portion.
16. The flow directing member for a container of claim 14, wherein the barrier layer comprises:
a first barrier for forming the closure portion;
a second barrier portion for forming the boss and connected to the first barrier portion;
and a third blocking portion for forming the boss sidewall and connected to the second blocking portion.
17. The flow directing member for a container of claim 16, wherein the first barrier, the second barrier, and the third barrier are of unitary construction.
18. The flow directing member for a container of claim 1, wherein the barrier layer comprises a first barrier located on an inner side of the tubular portion and a second barrier located on an outer side of the tubular portion, the first barrier comprising the laminated structure.
19. The flow directing member for a container of claim 18, wherein the second barrier comprises the laminated structure.
20. The flow directing member for a container of claim 18, wherein the barrier layer further comprises a third barrier portion located outside the tubular portion, the third barrier portion being connected to the first barrier portion by the second barrier portion,
wherein the first barrier, the second barrier, and the third barrier each comprise the laminated structure.
21. A packaging container comprising a flow directing member for a container according to any of claims 1-20.
22. A method of manufacturing a flow directing member for a container, wherein the flow directing member for a container comprises: a tubular portion, a flange connected to and surrounding the tubular portion, and a closure portion located in the tubular portion; the closure portion being arranged to lie in the tubular portion and being configured to seal the tubular portion, the closure portion comprising a first region and a second region surrounding the first region, the closure portion having a different thickness in the second region and the first region;
wherein the manufacturing method comprises the following steps:
forming the closure portion and a portion of the flange with a barrier layer, wherein the barrier layer comprises a matrix and an oxygen barrier material,
Wherein the barrier layer is formed by a co-injection method such that the closure portion and a portion of the flange are formed as a unitary structure;
the barrier layer comprises a laminated structure, the laminated structure comprises a substrate layer and an oxygen barrier layer which are laminated, the substrate layer comprises a first sub-layer and a second sub-layer, and the oxygen barrier layer is sandwiched between the first sub-layer and the second sub-layer;
the substrate layer comprises the substrate, the oxygen barrier layer comprises the oxygen barrier material, the substrate is polyolefin, the oxygen barrier material comprises at least one of first thermosetting resin and second thermosetting resin, the first thermosetting resin is ethylene-vinyl alcohol copolymer or polyvinyl alcohol, and the second thermosetting resin is polyamide;
wherein the mass percentage of the oxygen barrier material in the barrier layer is 4% -6%.
23. The method of manufacturing according to claim 22, wherein:
the flange includes a boss connected to the tubular portion;
the forming the closure portion and a portion of the flange with a barrier layer includes: the closing portion and the boss are formed with the barrier layer.
24. The manufacturing method according to claim 23, wherein:
The flange further comprises a boss side wall connected to the boss;
the forming the closure portion and a portion of the flange with a barrier layer includes: the closing portion, the boss and the boss side wall are formed using the barrier layer such that the closing portion, the boss and the boss side wall are formed as an integral structure.
CN202310101691.3A 2022-09-26 2022-09-26 Flow guiding member for container, method for manufacturing the same, and packaging container Pending CN116142596A (en)

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JP2000281058A (en) * 1999-03-25 2000-10-10 Toppan Printing Co Ltd Pour spout for liquid container
DE102010048415A1 (en) * 2010-10-15 2012-04-19 Sig Technology Ag Resealable pouring element with barrier foil and retaining wall
DE202019106993U1 (en) * 2019-11-29 2020-01-23 Sig Technology Ag Resealable pouring element for cardboard / plastic composite packs with an anchor ring for secure connection of a screw cap
ES2952001T3 (en) * 2020-04-24 2023-10-26 Tetra Laval Holdings & Finance Opening device for a sealed container and sealed container provided with an opening device
EP3943408B1 (en) * 2020-07-24 2023-06-07 SIG Combibloc Services AG Pouring element with securing cutting element guide
NL2027218B1 (en) * 2020-12-24 2022-07-20 Oerlemans Packaging B V Multilayer polymer barrier film for food packaging
EP4056488B1 (en) * 2021-03-10 2024-05-01 SIG Services AG Pouring element and composite package with improved opening behaviour

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