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WO2025093170A1 - Dispensing cap for a device for packaging and dispensing a product - Google Patents

Dispensing cap for a device for packaging and dispensing a product Download PDF

Info

Publication number
WO2025093170A1
WO2025093170A1 PCT/EP2024/074953 EP2024074953W WO2025093170A1 WO 2025093170 A1 WO2025093170 A1 WO 2025093170A1 EP 2024074953 W EP2024074953 W EP 2024074953W WO 2025093170 A1 WO2025093170 A1 WO 2025093170A1
Authority
WO
WIPO (PCT)
Prior art keywords
lid
dispensing cap
dispensing
opening
cap according
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
PCT/EP2024/074953
Other languages
French (fr)
Inventor
Simon BÖHLEN
Andreas Eggenberg
Philippe Kern
Mario Schuepbach
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.)
Hoffmann Neopac AG
Original Assignee
Hoffmann Neopac AG
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 Hoffmann Neopac AG filed Critical Hoffmann Neopac AG
Publication of WO2025093170A1 publication Critical patent/WO2025093170A1/en
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/44—Closures
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
    • B65D35/10—Body construction made by uniting or interconnecting two or more components
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
    • B65D35/12—Connections between body and closure-receiving bush
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/16—Non-removable lids or covers hinged for upward or downward movement
    • B65D43/161—Non-removable lids or covers hinged for upward or downward movement comprising two or more cover sections hinged one to another
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B65D47/0833—Hinges without elastic bias
    • B65D47/0847—Hinges without elastic bias located within a flat surface of the base element
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0857—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures made separately from the base element provided with the spout or discharge passage
    • B65D47/0876—Hinges without elastic bias
    • B65D47/089—Hinges without elastic bias located within a flat surface of the base element
    • 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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • B65D55/024—Closures in which a part has to be ruptured to gain access to the contents
    • 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
    • B65D2401/00—Tamper-indicating means
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure

Definitions

  • Dispensing cap for a device for packaging and dispensing a product
  • the present invention relates to a dispensing cap for attaching to a device .
  • the device is made for packaging and dispensing a product , in particular a pharma, dental or cosmetic product , in particular the device is a flexible tube .
  • the dispensing cap comprises a base and a lid attached to the base . The lid can be flipped over an angle .
  • the Dispensing cap comprises a first-opening guarantee consisting of a first part to be destroyed and a second part for destroying the first part .
  • the invention relates to a device with said dispensing cap and to a method of manufacturing said dispensing cap .
  • Flexible tubes are known as packaging devices for packaging and dispensing products in fluid form, in particular in the form of a lotion, gel , cream, paste or liquid .
  • Tubes as primary packaging in the pharmaceutical , cosmetics , and dental industries must satis fy the most stringent of requirements in terms of hygiene and safety as well as aesthetics plus ease of use .
  • Such tubes comprise a sleeve with a first end and a second end .
  • the first end of the sleeve is usually equipped with a shoulder and a dispensing cap and the second end of the sleeve is closed by welding or heat sealing .
  • the sleeve is a specially made laminate tube or Polyfoil tube or coextruded or monoextruded tube sleeve , which reliably protects products against light , air and water vapor di f fusion and substance migration . It keeps its shape and can be printed on all around .
  • the dispensing cap stabili zes the sleeve .
  • the range of dispensing caps varies from single-dose tubes with twist locks , flip-top hinge caps and screw caps , which can be embossed, metalli zed or decorated with a metal shell .
  • the caps are screwed or snaped on the shoulder .
  • the problem to be solved by the present invention is to provide a dispensing cap which is easy to manufacture .
  • the dispensing cap is adapted to be attached to a device for packaging and dispensing a product .
  • the product is a pharma, dental or cosmetic product .
  • the device can be a flexible tube .
  • the dispensing cap comprises
  • the base comprises attachment means for attaching the dispensing cap to a device .
  • the base has a circular shape .
  • the lid can be flipped over an angle .
  • the lid can be flipped around a rotation axis and the rotation axis can be arranged along the diameter of the dispensing cap .
  • the lid has a flat shape .
  • the first-opening guarantee ensures that a person can see i f the dispensing cap has already been opened .
  • the first part of the first-opening guarantee is arranged at the lid, and the second part of the first- opening guarantee is arranged at the base .
  • This arrangement simpli fies the manufacturing of the dispensing cap by inj ection moulding or compression moulding .
  • the dispensing cap can be manufactured with an open lid such that the first part of the first-opening guarantee can be aligned in the main demoulding direction . No slider is required for demoulding the first part of the first-opening guarantee .
  • the first part of the first- opening guarantee is arranged at the base
  • the second part is arranged at the lid .
  • the first part comprises a hole , in particular a through hole
  • the second part comprises a protrusion .
  • the protrusion protrudes into said hole , in case the lid is closed and the first-opening guarantee has not yet been destroyed .
  • the first part surrounds the protrusion until the lid is opened the first time .
  • the protrusion tears open the first part such that the first part of the first-opening guarantee is destroyed .
  • the dispensing cap is defined by the following three axes : a rotation axis , an axis normal to the lid and a lid axis .
  • These three axes form a cartesian coordinate system and the axes are mutually perpendicular axes .
  • the rotation axis defines the rotation of the lid with respect to the base .
  • the axis normal to the lid is arranged perpendicular to the main surface of the lid .
  • the lid axis is the third axis of the cartesian coordinate system which is arranged perpendicular to the two other axes .
  • the axis normal to the lid and the lid axis are understood to rotate together with a rotation of the lid around the rotation axis .
  • the cartesian coordinate system is fixated at the lid and rotates together with the lid .
  • the dispensing cap is made by inj ection moulding or by compression moulding and the first part , and in particular the second part , of the first-opening guarantee is adapted to have a demoulding direction equal to the lid axis .
  • the base comprises a dispensing ori fice and the lid comprises a pin for closing the dispensing ori fice , wherein the pin is adapted to have a demoulding direction equal to the axis normal to the lid .
  • the pin and the first part are adapted to have di f ferent demoulding directions .
  • Such a design allows that either the first part or the pin can be demoulded in the main opening direction of the mould .
  • the other part has to be demoulded by a slider .
  • a slider is a mould component which slides perpendicular to or at a certain angle to the main opening direction of the mould during the opening action .
  • the slider is used to demould undercuts . Undercuts are recesses or proj ections on the surface of an molded part that prevent the part ' s direct removal from the mould cavity .
  • the first part of the opening guarantee is demoulded in the main demoulding direction and the pin is demoulded with a slider .
  • the lid can be flipped by a maximum of 180 ° .
  • the si ze ratio between a maximal diameter of the dispensing cap and the height of the dispensing cap is at least 3 to 1 , in particular at least 4 to 1 , in particular at least 5 to 1 .
  • a si ze ratio of at least 3 to 1 means that the diameter is substantially larger than the height of the dispensing cap, or with other words , the dispensing cap has a small thickness compared to its height . These ratios represent an ultralow profile of the dispensing cap .
  • the si ze ratio between a maximal diameter of the lid and the height of the lid is at least 3 to 1 , in particular at least 4 to 1 , in particular at least 5 to 1 .
  • the dispensing cap comprises two first-opening guarantees .
  • the first part of the opening guarantee is arranged at the underside of the lid .
  • the dispensing cap is based on high-density polyethylene (HDPE ) or polypropylene .
  • Another problem of the invention is to provide a device for packaging and dispensing a product with a dispensing cap which is easy to manufacture .
  • the product can be a pharma, dental or cosmetic product .
  • the device can be a flexible tube .
  • the device comprises :
  • the sleeve for holding the product , in particular a flexible sleeve .
  • the sleeve comprises a first end and a second end .
  • the sleeve is made of Polyfoil , PE or PP extrusion, PE-COEX or PP-COEX extrusion .
  • Polyfoil is a laminated tube with extrusion coating after longitudinal sealing the laminate for creating the tube sleeve .
  • the sleeve might have a thickness of 0 . 2 - 0 . 5 mm and might be decorated on its outside .
  • the whole device can have capacities from 10 to 300 ml .
  • the second end of the sleeve is welded together forming the bottom of the device for packaging and dispensing a product .
  • the shoulder is made of high-density polyethylene (HDPE ) or polypropylene , which is a thermoplastic polymer with a high strength-to-den- sity ratio .
  • HDPE high-density polyethylene
  • polypropylene which is a thermoplastic polymer with a high strength-to-den- sity ratio .
  • the shoulder is used to hold and maintain the sleeve in its shape before a dispensing cap is attached to the device .
  • dispensing cap as described above which is attached to the shoulder .
  • the dispensing cap is welded on the shoulder, or directly in the sleeve .
  • Another problem of the invention is to provide a method of manufacturing a dispensing cap in an easy way .
  • This problem is solved by a method of manufacturing a dispensing cap as described above .
  • the dispensing cap is manufactured by inj ection moulding or compression moulding, wherein method comprises the following steps :
  • the first part of the first- opening guarantee is demoulded only in opening direction .
  • No slider is required for demoulding the first part of the opening guarantee .
  • This simpli fies the manufacturing process .
  • the lid of the dispensing cap is in an open state while the liquid material is inj ected into the mould .
  • the lid is open with an angle of 90 ° .
  • the open lid allows to demould the first part of the first-opening guarantee in the opening direction .
  • the pin for closing the dispensing ori fice is demoulded in a direction perpendicular to the opening direction of the mould .
  • a slider is required to demould the pin .
  • Fig . la shows a first dispensing cap according to the invention with a closed lid and an intact first-opening guarantee ;
  • Fig . lb shows the first dispensing cap with an open lid, wherein the first-opening guarantee is destroyed
  • Fig . 1c shows the first dispensing cap with a closed lid and a destroyed first-opening guarantee ;
  • Fig . Id shows a flexible tube with the first dispensing cap
  • Fig . 2a shows a side view of the dispensing cap with arrows indicating the demould directions ;
  • Fig . 2b shows a top view of the dispensing cap with arrows indicating the demould directions ;
  • Fig . 3a and 3b show a second dispensing cap according to the invention with a small cap ;
  • Fig . 4a and 4b show a third dispensing cap according to the invention with a lengthy cap ;
  • Fig . la, lb and 1c show a first dispensing cap according to the invention .
  • the dispensing cap comprises a base 1 and a lid 2 .
  • the lid 2 is attached to the base 1 .
  • the lid 2 is shaped as a semicircle and can be flipped over a maximal angle of 180 ° .
  • the maximal opening position of the lid 2 is shown in Fig . lb .
  • the lid 2 is flipped around a rotation axis RA.
  • the other two axes of the cartesian coordinate system are the axis normal to the lid NA and the lid axis LA.
  • the axis normal to the lid NA is arranged normal to the main surface of the flat lid 2 .
  • the lid axis LA is arranged perpendicular to the two other axes RA and NA.
  • the coordinate system is fixated to the lid 2 . I f the lid 2 rotates around the rotation axis RA, the coordinate system, i . e . , the axis normal to the lid NA and the lid axis LA rotate in the same way .
  • the rotation of the coordinate system is visuali zed in Fig . la and lb .
  • the dispensing cap is designed with an ultralow profile .
  • the si ze ratio between the maximal diameter Dmax-cap of the dispensing cap and the height H cap of the dispensing cap is 4 . 3 to 1 .
  • the si ze ratio between the maximal diameter D max -n d of the lid 2 and the height Hn d of the lid 2 is 10 . 5 to 1 .
  • the maximal diameter D max-cap and the height H cap of the dispensing cap are shown in Fig . 2a .
  • the maximal diameter D max -n d of the lid 2 is shown in Fig . 2b and the height Hn d of the lid 2 is shown in Fig . 2a .
  • the dispensing cap comprises a first-opening guarantee .
  • the first-opening guarantee is intact as long as the lid 2 has not yet been opened . After the first opening of the lid 2 , the first-opening guarantee is destroyed .
  • the first-opening guarantee consists of a first part 3 and a second part 4 .
  • the first part 3 is arranged at the underside of the lid 2 and the second part 4 is arranged at the base 1 .
  • the dispensing cap shown in Fig . la until 1c comprises in total two first-opening guarantees .
  • the first part 3 comprises a hole 5 and the second part 4 comprises a protrusion 6 wherein the first- opening guarantee is adapted such that the protrusion 6 protrudes into the hole 5 as long as the lid 2 is closed and the first-opening guarantee is intact .
  • Fig . la shows the dispensing cap with a closed lid 1 .
  • the first-opening guarantee is intact , i . e . , the first part 3 hat not yet been destroyed and the protrusion 6 of the second part 4 protrudes into the hole 4 of the first part 3 .
  • Fig . lb shows the dispensing cap with an open lid 2 .
  • the first-opening guarantee was destroyed during the first opening action .
  • the protrusion 4 teared open the first part 3 of the first-opening guarantee.
  • the lower part 7 of the first part 3 hangs freely and is only fixed to the lid 2 at one of its ends.
  • Fig. 1c shows the dispensing cap, wherein the lid 2 is closed.
  • the lid 2 was closed after a first opening of the lid 2.
  • the first-opening guarantee is destroyed. This is visible by the lower part 7 hanging freely .
  • the lid 2 comprises a pin 8 and the base 1 comprises a dispensing orifice 9. If the lid 2 is closed, the pin 8 protrudes into the orifice 9 and closes the orifice 9.
  • the pin 8 and the orifice 9 are visualized in Fig. lb.
  • Fig. Id shows a device for packaging and dispensing a product.
  • the device is a flexible tube holding a dental, cosmetic or pharma product.
  • the flexible tube comprises a sleeve 10 for holding the product, a shoulder 11 attached to the sleeve 10 at a first end.
  • the dispensing cap is attached to the shoulder 11 and shows an open lid 2.
  • the dispensing cap is welded on the shoulder 11.
  • the dispensing cap is manufactured by injection moulding or compression moulding.
  • the dispensing cap is made of polyethylene or polypropylene.
  • the method of moulding is visualized in Fig. 2a and Fig. 2b.
  • Fig. 2a shows a side view of the dispensing cap
  • Fig. 2b shows a top view of the dispensing cap.
  • the dispensing cap is manufactured with an open lid 2.
  • the open lid 2 is open with the angle of 90°, i.e., the flat lid 2 is open and aligned with the main opening direction of the mould.
  • Separation line 12 visualizes the plane where the two mould halves touch each other if the mould is closed. If the mould is opened, the two main mould halves are moved in vertical direction, i.e. the upper main mould half is moved in the vertical direction visualized by arrows 13. The vertical direction is equal to the lid axis LA.
  • the base 1 with the orifice 9 are demoulded by the opening movement of the upper main mould half.
  • the first part 3 of the first-opening guarantee which is arranged at the lid 2 , and the opening 5 of the first part 3 are demoulded in the direction of the upper main mould hal f . No slider is required for demoulding the first part 3 of the first-opening guarantee .
  • the pin 8 is demoulded in a direction which is perpendicular to the main demould direction .
  • the demould direction of the pin 8 is visuali zed by arrow 14 which corresponds to the axis normal to the lid NA.
  • a slider is required for demoulding the pin 8 .
  • the pin 8 and the first part 3 of the first opening guarantee are demoulded in di f ferent directions .
  • Fig . 3a and 3b show a dispensing cap with an alternative design .
  • the lid 2 is smaller compared to the lid shown in Fig . la until Fig . 1c .
  • the dispensing cap comprises only one single first-opening guarantee arranged at the front of the lid 2 .
  • Fig . 4a and 4b show a third exemplary embodiment of a dispensing cap .
  • the lid 2 has a lengthy shape with one single first-opening guarantee at the front of the lid 2 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

The invention relates to a dispensing cap of a device for packaging and dispensing a product, in particular a pharma, dental or cosmetic product. The device can be a flexible tube. The dispensing cap comprises a base (1) and a lid (2) attached to the base (1). The lid (2) can be flipped over an angle. The dispensing cap comprises a first-opening guarantee consisting of a first part (3) to be destroyed and a second part (4) for destroying the first part (3). The first part (3) is arranged at the lid (2), and the second part (4) is arranged at the base (1).

Description

Dispensing cap for a device for packaging and dispensing a product
Technical Field
The present invention relates to a dispensing cap for attaching to a device . The device is made for packaging and dispensing a product , in particular a pharma, dental or cosmetic product , in particular the device is a flexible tube . The dispensing cap comprises a base and a lid attached to the base . The lid can be flipped over an angle . The Dispensing cap comprises a first-opening guarantee consisting of a first part to be destroyed and a second part for destroying the first part .
Furthermore , the invention relates to a device with said dispensing cap and to a method of manufacturing said dispensing cap .
Background Art
Flexible tubes are known as packaging devices for packaging and dispensing products in fluid form, in particular in the form of a lotion, gel , cream, paste or liquid . Tubes as primary packaging in the pharmaceutical , cosmetics , and dental industries must satis fy the most stringent of requirements in terms of hygiene and safety as well as aesthetics plus ease of use .
Such tubes comprise a sleeve with a first end and a second end . The first end of the sleeve is usually equipped with a shoulder and a dispensing cap and the second end of the sleeve is closed by welding or heat sealing . The sleeve is a specially made laminate tube or Polyfoil tube or coextruded or monoextruded tube sleeve , which reliably protects products against light , air and water vapor di f fusion and substance migration . It keeps its shape and can be printed on all around . The dispensing cap stabili zes the sleeve .
A large variety of shoulders and dispensing caps exist . The range of dispensing caps varies from single-dose tubes with twist locks , flip-top hinge caps and screw caps , which can be embossed, metalli zed or decorated with a metal shell . Usually, the caps are screwed or snaped on the shoulder .
Disclosure of the Invention
The problem to be solved by the present invention is to provide a dispensing cap which is easy to manufacture .
This problem is solved by the dispensing cap according to claim 1 . According to this , the dispensing cap is adapted to be attached to a device for packaging and dispensing a product . In particular, the product is a pharma, dental or cosmetic product . The device can be a flexible tube . The dispensing cap comprises
- a base , in particular wherein the base comprises attachment means for attaching the dispensing cap to a device . In particular the base has a circular shape .
- a lid attached to the base , wherein the lid can be flipped over an angle . In particular, the lid can be flipped around a rotation axis and the rotation axis can be arranged along the diameter of the dispensing cap . In particular the lid has a flat shape .
- a first-opening guarantee consisting of a first part to be destroyed and a second part for destroying the first part . The first-opening guarantee ensures that a person can see i f the dispensing cap has already been opened . When opening the dispensing cap the first time , the first part is destroyed by the second part . This can be heard and can be seen from the person opening the dispensing cap . The first part of the first-opening guarantee is arranged at the lid, and the second part of the first- opening guarantee is arranged at the base . This arrangement simpli fies the manufacturing of the dispensing cap by inj ection moulding or compression moulding . The dispensing cap can be manufactured with an open lid such that the first part of the first-opening guarantee can be aligned in the main demoulding direction . No slider is required for demoulding the first part of the first-opening guarantee .
Alternatively, the first part of the first- opening guarantee is arranged at the base , and the second part is arranged at the lid .
In particular, the first part comprises a hole , in particular a through hole , and the second part comprises a protrusion . The protrusion protrudes into said hole , in case the lid is closed and the first-opening guarantee has not yet been destroyed . The first part surrounds the protrusion until the lid is opened the first time . When opening the lid the first time , the protrusion tears open the first part such that the first part of the first-opening guarantee is destroyed .
Advantageously, the dispensing cap is defined by the following three axes : a rotation axis , an axis normal to the lid and a lid axis . These three axes form a cartesian coordinate system and the axes are mutually perpendicular axes . The rotation axis defines the rotation of the lid with respect to the base . The axis normal to the lid is arranged perpendicular to the main surface of the lid . The lid axis is the third axis of the cartesian coordinate system which is arranged perpendicular to the two other axes . The axis normal to the lid and the lid axis are understood to rotate together with a rotation of the lid around the rotation axis . With other words , the cartesian coordinate system is fixated at the lid and rotates together with the lid . In particular, the dispensing cap is made by inj ection moulding or by compression moulding and the first part , and in particular the second part , of the first-opening guarantee is adapted to have a demoulding direction equal to the lid axis .
In a preferred embodiment , the base comprises a dispensing ori fice and the lid comprises a pin for closing the dispensing ori fice , wherein the pin is adapted to have a demoulding direction equal to the axis normal to the lid .
In particular, the pin and the first part are adapted to have di f ferent demoulding directions . Such a design allows that either the first part or the pin can be demoulded in the main opening direction of the mould . The other part has to be demoulded by a slider . A slider is a mould component which slides perpendicular to or at a certain angle to the main opening direction of the mould during the opening action . The slider is used to demould undercuts . Undercuts are recesses or proj ections on the surface of an molded part that prevent the part ' s direct removal from the mould cavity .
Preferably, the first part of the opening guarantee is demoulded in the main demoulding direction and the pin is demoulded with a slider .
In particular, the lid can be flipped by a maximum of 180 ° .
Advantageously, the si ze ratio between a maximal diameter of the dispensing cap and the height of the dispensing cap is at least 3 to 1 , in particular at least 4 to 1 , in particular at least 5 to 1 . A si ze ratio of at least 3 to 1 means that the diameter is substantially larger than the height of the dispensing cap, or with other words , the dispensing cap has a small thickness compared to its height . These ratios represent an ultralow profile of the dispensing cap .
Advantageously, the si ze ratio between a maximal diameter of the lid and the height of the lid is at least 3 to 1 , in particular at least 4 to 1 , in particular at least 5 to 1 .
In particular, the dispensing cap comprises two first-opening guarantees . In particular, the first part of the opening guarantee is arranged at the underside of the lid .
Advantageously, the dispensing cap is based on high-density polyethylene (HDPE ) or polypropylene .
Another problem of the invention is to provide a device for packaging and dispensing a product with a dispensing cap which is easy to manufacture .
This problem is solved by a device which is suitable for packaging and dispensing a product . In particular, the product can be a pharma, dental or cosmetic product . In particular, the device can be a flexible tube . The device comprises :
- a sleeve for holding the product , in particular a flexible sleeve . The sleeve comprises a first end and a second end . In particular, the sleeve is made of Polyfoil , PE or PP extrusion, PE-COEX or PP-COEX extrusion . Polyfoil is a laminated tube with extrusion coating after longitudinal sealing the laminate for creating the tube sleeve . The sleeve might have a thickness of 0 . 2 - 0 . 5 mm and might be decorated on its outside . The whole device can have capacities from 10 to 300 ml . In particular, the second end of the sleeve is welded together forming the bottom of the device for packaging and dispensing a product .
- a shoulder, which is attached to the sleeve at the first end . In particular, the shoulder is made of high-density polyethylene (HDPE ) or polypropylene , which is a thermoplastic polymer with a high strength-to-den- sity ratio . The shoulder is used to hold and maintain the sleeve in its shape before a dispensing cap is attached to the device .
- a dispensing cap as described above which is attached to the shoulder . In particular, the dispensing cap is welded on the shoulder, or directly in the sleeve .
Another problem of the invention is to provide a method of manufacturing a dispensing cap in an easy way . This problem is solved by a method of manufacturing a dispensing cap as described above . The dispensing cap is manufactured by inj ection moulding or compression moulding, wherein method comprises the following steps :
- closing the mould,
- inj ecting liquid material into the mould or extruding molten material into the mould and compressing it while closing the mould,
- opening the mould in opening direction .
Advantageously, the first part of the first- opening guarantee is demoulded only in opening direction . No slider is required for demoulding the first part of the opening guarantee . This simpli fies the manufacturing process .
In particular, the lid of the dispensing cap is in an open state while the liquid material is inj ected into the mould . In particular the lid is open with an angle of 90 ° . The open lid allows to demould the first part of the first-opening guarantee in the opening direction .
Advantageously, the pin for closing the dispensing ori fice is demoulded in a direction perpendicular to the opening direction of the mould . A slider is required to demould the pin .
Other advantageous embodiments are listed in the dependent claims as well as in the description below .
Brief Description of the Drawings
The invention will be better understood and obj ects other than those set forth above will become apparent from the following detailed description thereof . Such description makes reference to the annexed drawings , wherein :
Fig . la shows a first dispensing cap according to the invention with a closed lid and an intact first-opening guarantee ;
Fig . lb shows the first dispensing cap with an open lid, wherein the first-opening guarantee is destroyed;
Fig . 1c shows the first dispensing cap with a closed lid and a destroyed first-opening guarantee ;
Fig . Id shows a flexible tube with the first dispensing cap ;
Fig . 2a shows a side view of the dispensing cap with arrows indicating the demould directions ;
Fig . 2b shows a top view of the dispensing cap with arrows indicating the demould directions ;
Fig . 3a and 3b show a second dispensing cap according to the invention with a small cap ;
Fig . 4a and 4b show a third dispensing cap according to the invention with a lengthy cap ;
Modes for Carrying Out the Invention
Fig . la, lb and 1c show a first dispensing cap according to the invention . The dispensing cap comprises a base 1 and a lid 2 . The lid 2 is attached to the base 1 . The lid 2 is shaped as a semicircle and can be flipped over a maximal angle of 180 ° . The maximal opening position of the lid 2 is shown in Fig . lb . The lid 2 is flipped around a rotation axis RA. The other two axes of the cartesian coordinate system are the axis normal to the lid NA and the lid axis LA. The axis normal to the lid NA is arranged normal to the main surface of the flat lid 2 . The lid axis LA is arranged perpendicular to the two other axes RA and NA. The coordinate system is fixated to the lid 2 . I f the lid 2 rotates around the rotation axis RA, the coordinate system, i . e . , the axis normal to the lid NA and the lid axis LA rotate in the same way . The rotation of the coordinate system is visuali zed in Fig . la and lb .
The dispensing cap is designed with an ultralow profile . The si ze ratio between the maximal diameter Dmax-cap of the dispensing cap and the height Hcap of the dispensing cap is 4 . 3 to 1 . The si ze ratio between the maximal diameter Dmax-nd of the lid 2 and the height Hnd of the lid 2 is 10 . 5 to 1 . The maximal diameter Dmax-cap and the height Hcap of the dispensing cap are shown in Fig . 2a . The maximal diameter Dmax-nd of the lid 2 is shown in Fig . 2b and the height Hnd of the lid 2 is shown in Fig . 2a .
The dispensing cap comprises a first-opening guarantee . The first-opening guarantee is intact as long as the lid 2 has not yet been opened . After the first opening of the lid 2 , the first-opening guarantee is destroyed .
The first-opening guarantee consists of a first part 3 and a second part 4 . The first part 3 is arranged at the underside of the lid 2 and the second part 4 is arranged at the base 1 . The dispensing cap shown in Fig . la until 1c comprises in total two first-opening guarantees .
The first part 3 comprises a hole 5 and the second part 4 comprises a protrusion 6 wherein the first- opening guarantee is adapted such that the protrusion 6 protrudes into the hole 5 as long as the lid 2 is closed and the first-opening guarantee is intact .
Fig . la shows the dispensing cap with a closed lid 1 . The first-opening guarantee is intact , i . e . , the first part 3 hat not yet been destroyed and the protrusion 6 of the second part 4 protrudes into the hole 4 of the first part 3 .
Fig . lb shows the dispensing cap with an open lid 2 . The first-opening guarantee was destroyed during the first opening action . The protrusion 4 teared open the first part 3 of the first-opening guarantee. The lower part 7 of the first part 3 hangs freely and is only fixed to the lid 2 at one of its ends.
Fig. 1c shows the dispensing cap, wherein the lid 2 is closed. The lid 2 was closed after a first opening of the lid 2. The first-opening guarantee is destroyed. This is visible by the lower part 7 hanging freely .
The lid 2 comprises a pin 8 and the base 1 comprises a dispensing orifice 9. If the lid 2 is closed, the pin 8 protrudes into the orifice 9 and closes the orifice 9. The pin 8 and the orifice 9 are visualized in Fig. lb.
Fig. Id shows a device for packaging and dispensing a product. The device is a flexible tube holding a dental, cosmetic or pharma product. The flexible tube comprises a sleeve 10 for holding the product, a shoulder 11 attached to the sleeve 10 at a first end. The dispensing cap is attached to the shoulder 11 and shows an open lid 2. The dispensing cap is welded on the shoulder 11.
The dispensing cap is manufactured by injection moulding or compression moulding. The dispensing cap is made of polyethylene or polypropylene. The method of moulding is visualized in Fig. 2a and Fig. 2b. Fig. 2a shows a side view of the dispensing cap and Fig. 2b shows a top view of the dispensing cap. The dispensing cap is manufactured with an open lid 2. The open lid 2 is open with the angle of 90°, i.e., the flat lid 2 is open and aligned with the main opening direction of the mould.
Separation line 12 visualizes the plane where the two mould halves touch each other if the mould is closed. If the mould is opened, the two main mould halves are moved in vertical direction, i.e. the upper main mould half is moved in the vertical direction visualized by arrows 13. The vertical direction is equal to the lid axis LA. The base 1 with the orifice 9 are demoulded by the opening movement of the upper main mould half. The first part 3 of the first-opening guarantee , which is arranged at the lid 2 , and the opening 5 of the first part 3 are demoulded in the direction of the upper main mould hal f . No slider is required for demoulding the first part 3 of the first-opening guarantee .
The pin 8 is demoulded in a direction which is perpendicular to the main demould direction . The demould direction of the pin 8 is visuali zed by arrow 14 which corresponds to the axis normal to the lid NA. A slider is required for demoulding the pin 8 . The pin 8 and the first part 3 of the first opening guarantee are demoulded in di f ferent directions .
Fig . 3a and 3b show a dispensing cap with an alternative design . The lid 2 is smaller compared to the lid shown in Fig . la until Fig . 1c . The dispensing cap comprises only one single first-opening guarantee arranged at the front of the lid 2 .
Fig . 4a and 4b show a third exemplary embodiment of a dispensing cap . The lid 2 has a lengthy shape with one single first-opening guarantee at the front of the lid 2 .

Claims

Claims
1. A dispensing cap for attaching to a device for packaging and dispensing a product, in particular a pharma, dental or cosmetic product, in particular a flexible tube, wherein the dispensing cap comprises
- a base ( 1 ) ,
- a lid (2) attached to the base (1) , wherein the lid (2) can be flipped over an angle,
- a first-opening guarantee consisting of a first part (3) to be destroyed and a second part (4) for destroying the first part (3) , characterized in that
- the first part (3) is arranged at the lid (2) , and the second part (4) is arranged at the base (1) , or
- the first part (3) is arranged at the base (1) , and the second part (4) is arranged at the lid (2) .
2. The dispensing cap according to claim 1, wherein the first part (3) comprises a hole (5) , in particular a through hole, and the second part (4) comprises a protrusion (6) protruding into said hole (5) in case the lid (2) is closed and the first-opening guarantee is not destroyed.
3. The dispensing cap according to claim 1 or 2, wherein the dispensing cap is defined by a rotation axis (RA) , an axis normal to the lid (NA) and a lid axis (LA) , wherein the dispensing cap is made by injection moulding or compression moulding and the first part (3) , and in particular the second part (4) , is adapted to have a demoulding direction equal to the lid axis (LA) .
4. The dispensing cap according to claim 3, wherein the base (1) comprises a dispensing orifice (9) and the lid (2) comprises a pin (8) for closing the dispensing orifice (9) , wherein the pin (8) is adapted to have a demoulding direction equal to the axis normal to the lid (NA) .
5. The dispensing cap according to claim 1 or 2, wherein the base (1) comprises a dispensing orifice (9) and the lid (2) comprises a pin (8) for closing the dispensing orifice (9) , wherein the pin (8) and the first part (3) of the first-opening guarantee are adapted to have different demoulding directions, in particular wherein the two different demould directions are perpendicular to each other.
6. The dispensing cap according to any one of the preceding claims, wherein the lid (2) can be flipped by a maximum of 180°.
7. The dispensing cap according to any one of the preceding claims, wherein a size ratio between a maximal diameter (Dmax-cap) of the dispensing cap and the height (Hcap) of the dispensing cap is at least 2 to 1, in particular 3 to 1, in particular at least 4 to 1, in particular at least 5 to 1.
8. The dispensing cap according to any one of the preceding claims, wherein a size ratio between a maximal diameter (Dmax-nd) of the lid (2) and the height (Hud) of the lid (2) is at least 3 to 1, in particular at least 4 to 1, in particular at least 5 to 1, in particular 7 to 1.
9. The dispensing cap according to any one of the preceding claims, comprising two of the first-opening guarantee .
10. The dispensing cap according to any one of the preceding claims, wherein the first part (3) is arranged at the underside of the lid (2) .
11. The dispensing cap according to any one of the preceding claims, wherein the lid (2)
- has the shape of a semicircle, and/or
- extends only over approximately the half diameter of the dispensing cap.
12. The dispensing cap according to any one of the preceding claims, wherein the dispensing cap is made of polyethylene or polypropylene.
13. A device for packaging and dispensing a product, in particular a pharma, dental or cosmetic product, in particular a flexible tube, comprising
- a sleeve (10) for holding the product,
- in particular a shoulder (11) attached to the sleeve (10) at the first end,
- a dispensing cap according to any one of the preceding claims attached to the shoulder (11) .
14. The device of claim 13, wherein the dispensing cap is welded directly in the sleeve (10) or on the shoulder (11) .
15. A method of manufacturing a dispensing cap according to any one of the preceding claims, wherein the dispensing cap is manufactured by injection moulding or compression moulding, comprising the following steps
- closing the mould,
- injecting liquid material into the mould or extruding molten material into the mould and compressing it while closing the mould,
- opening the mould in opening direction.
16. The method of claim 15, wherein the first part (3) of the first-opening guarantee is demoulded only in the main opening direction.
17. The method according to any one of the claims 15 to 16, wherein the lid (2) is in an open state while injecting the liquid material, in particular in an open state with an angle of 90°.
18. The method according to any one of the claims 15 to 17 for manufacturing a dispensing cap according to claim 5, wherein the pin (8) is demoulded in a direction perpendicular to the opening direction of the mould .
PCT/EP2024/074953 2023-10-30 2024-09-06 Dispensing cap for a device for packaging and dispensing a product Pending WO2025093170A1 (en)

Applications Claiming Priority (2)

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PCT/EP2023/080213 WO2025093097A1 (en) 2023-10-30 2023-10-30 Device for packaging and dispensing a product, method for producing the device
EPPCT/EP2023/080213 2023-10-30

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PCT/EP2024/074953 Pending WO2025093170A1 (en) 2023-10-30 2024-09-06 Dispensing cap for a device for packaging and dispensing a product

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2011828C2 (en) * 2013-11-21 2015-05-26 Louis Rinze Henricus Adrianus Willemsen CONTAINER FOR FISH SELECTION LIQUIDS, AND A METHOD FOR MANUFACTURING THEM.
EP4166471A1 (en) * 2021-10-14 2023-04-19 Albea Services Head for manufacturing a flexible tube and tube comprising such a head

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2245677T3 (en) * 2000-06-06 2006-01-16 ALCAN TECHNOLOGY & MANAGEMENT AG FOLDING LID CLOSURE CONTAINER.
US11319116B2 (en) * 2019-08-06 2022-05-03 Viva Healthcare Packaging Limited Container for storing and dispensing a flowable material
FR3119608B1 (en) * 2021-02-10 2023-04-28 Albea Services Tube head and tube including said tube head

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2011828C2 (en) * 2013-11-21 2015-05-26 Louis Rinze Henricus Adrianus Willemsen CONTAINER FOR FISH SELECTION LIQUIDS, AND A METHOD FOR MANUFACTURING THEM.
EP4166471A1 (en) * 2021-10-14 2023-04-19 Albea Services Head for manufacturing a flexible tube and tube comprising such a head

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