CN104114455A

CN104114455A - Container closure with tamper evidence

Info

Publication number: CN104114455A
Application number: CN201380009241.6A
Authority: CN
Inventors: P·麦古
Original assignee: Bapco Closures Research Ltd
Current assignee: Aptar France SAS
Priority date: 2012-03-26
Filing date: 2013-03-15
Publication date: 2014-10-22
Anticipated expiration: 2033-03-15
Also published as: BR112014019253A2; GB2516175A; US20160001939A1; WO2013144560A1; MX2014009421A; CN104114455B; ES2566793T3; GB201414407D0; EP2830969B1; GB201205264D0; EP2830969A1

Abstract

A closure (2) for a container body (4) comprises a base (6) with a hinged lid (8). The base has a depending skirt (10) and a flange (12). The horizontal flange (12) of the base is sealed to a rim of the container body by means of an induction heat sealed foil (14). The side wall of the container body is stepped inwardly and the skirt is deep and thin-walled and is provided with at least one weakened region to define a fracture point. Any leverage of the skirt will at least leave a mark and is liable to tear the skirt at the fracture point. Preferably the weakened regions are reduced wall section ribs are moulded into an interior face of the skirt at vulnerable areas such as the corners and centres of the side walls to provide additional tamper evidence.

Description

There is the container closing appliance that surreptitiously opens evidence

Technical field

The present invention relates to a kind of container closing appliance, and relate more specifically to a kind of packaging, wherein said container closing appliance can be applied to container body and not leave the stolen evidence opening of packaging so that described container closing appliance can not be removed.

Background technology

These malice may wish to pollute the content of the container of filling and do not open.Certified products container recharge the serious risk also meaning for user and brand business.Although during can being desirably in manufacturing process, closing appliance should to be easily applied to container body and to process with refuse and separable in order recycling, and forges and preventing of polluting needs separate and be obvious or cause the destruction of closing appliance and/or container body and closing appliance and/or container can not be reused.

The present invention be more particularly directed to a kind of as described in the patent documentation 0001:WO 2011/067585A on June 9th, 2011 of Bapco Closures Res Ltd. such as the large container for baby milk.Such packaging comprises container body and closing appliance, described closing appliance is the base portion with lid, described lid is suitable for capping base portion, described base portion comprise by sagging skirt section around horizontal flanges, described base portion limits the opening on the open oral area that is suitable for being engaged in container body; Container body has sidewall, and described sidewall stops in the edge of the open oral area of container body; With induction heat sealed foil, described induction heat sealed foil is suitable for being fixed to edge and the base portion of container body.

The base portion of such closing appliance is called as spout sometimes, relates to especially little container, and wherein base portion is defined for the spout of toppling over from container transport content.

The use of BAP (registered trade mark (RTM)) technology is described in the patent documentation 0002:WO 99/61337A on December 2nd, 1999 of SPRECKELSEN MCGEOUGH Co., Ltd, thereby induction heat sealed foil is incorporated into container body and closing appliance and can be by tearing instead of peeling off and remove, provide some intrinsic evidences that surreptitiously open.This invention is also described and the use of claimed reduction recess in the base portion horizontal flanges upper surface around opening, if base portion is pried open in attempt, described reduction recess causes the skirt section of base portion to separate.

Conventionally, the skirt section of such closing appliance will form with projecting rib, and described projecting rib and the recess that dangles of the neck around container body engage to make together with two parts are latched to.Skirt section warpage when this must be pulled on container body in skirt section.If skirt section is not damaged during installation, this restriction skirt section can be more than enough thin.But, in the time that induction heat sealed foil provides the initial sealing between container body and base portion, do not need such mechanical engagement.

When producing neck formation part when the laterally projecting portion of certain pattern to be provided on container body, no matter this is for acting on the carrier bar of transfer cask main body or with the engaging gear that acts on threaded base portion, this is standard convention.Therefore, there is the portion of dangling of certain pattern, on the portion of dangling described in base portion can be latched in.This is convenient to substitute the placement of base portion.

Summary of the invention

The invention provides a kind of packaging, described packaging comprises container body and closing appliance, described closing appliance is the base portion with lid, described lid is suitable for base portion described in capping, described base portion comprise by sagging skirt section around horizontal flanges, described base portion limits the opening on the open oral area that is suitable for being engaged in container body; Container body has sidewall, and described sidewall stops in the open oral area edge of container body; Be suitable for being fixed to edge and the base portion of container body with induction heat sealed foil; It is characterized in that, the sidewall of container body be inside step so that the first step adjacent with the terminal edges in skirt section to be provided; With it is characterized in that, skirt section is unstructuredness thin-walled, if described skirt section have at least one atenuator region with limit skirt section be subject to away from hold main body transverse shifting time breaking-down point.

In this packaging, skirt section is provided to the inside stepped area of the sidewall of covering container only and does not need to carry out engage with any locking of container body.Skirt section can be formed relatively deeply and to combine with the thickness reducing in skirt section making, and skirt section is risen will at least leave mark and be easy to away from needed leverage from container body and tear skirt section at breaking-down point.Preferably, the region of reduction is to be molded into rib that the wall cross section of inner skirt surface reduces so that the extra evidence that surreptitiously opens to be provided in weak section (such as the corner at sidewall and center).

The use in relatively dark skirt section allow closing appliance to be positioned at reliably before sealing at production period on container body and without any need for mechanical latching to prevent displacement ahead of time.

Brief description of the drawings

For the present invention can be understood better, now with reference to schematic figures, embodiments of the invention are only described by way of example, in the accompanying drawings:

Fig. 1 is connected to container body and covers under state in an open position at closing appliance, the block diagram of packaging;

Fig. 2 is the block diagram of container body;

Fig. 3 is the block diagram while seeing to the base portion inside of closing appliance;

Fig. 4 is the cross section in the skirt section of passing through base portion of the line A-A of Fig. 1 intercepting; With

Fig. 5 is the horizontal section in the skirt section of passing through base portion of a corner part intercepting.

Detailed description of the invention

Packaging is produced by closing appliance 2, and as shown in Figure 1, described closing appliance 2 is fitted to the open top of container body 4.Closing appliance comprises the base portion 6 that is connected to hinged lid 8.Base portion has the skirt section 10 of dangling and smooth horizontal flanges 12, and described skirt section 10 overlays on the neck formation part of container body 4, described smooth horizontal flanges 12 be seated at container body edge top and be defined for the opening of access container body matter thing.

Closing appliance is passed induction heat sealed foil 14 and is sealed to the edge of container body, the compatible plastic material coating that described induction heat sealed foil has an each surface that adheres to paper tinsel with make described paper tinsel can Israel and Palestine encapsulation research Co., Ltd of general section the described mode of patent documentation 0003:EP1656306A on May 17th, 2006 be soldered to the edge of container body and the base portion of closing appliance.

Removable portion 16 surrounds opening and is connected to horizontal flanges 12 by frangible region 18.Removable portion is also sealed to induction heat sealed foil 14.The draw ring 20 that is lifted to paper tinsel surface is provided to make user removable portion can be removed.

Skirt section 10 be thin-walled and stop and will at least leave mark and be easy to tear skirt section with any leverage that makes described skirt section without any inside outshot with flat edge 22.Each in the corner part 24 in skirt section 10 is molded to make wall cross section to reduce in this region.Have that further wall cross section reduces rib 26 be molded into these corner parts.Preferably, the outside face of corner part is that the smooth fragility to make corner part is not exposed to user.The region 28 that other wall cross sections reduce can be arranged on the center of the sidewall in skirt section.The region that these wall cross sections reduce is formed paired rib.For the formation part 30 engaging with the locking 32 of lid on 8 is arranged on the front side wall center in skirt section.

Skirt section 10 preferably forms to make skirt section to start plastic deformation at relatively low stress and will can not return to its original-shape by the polypropylene with low-yield, thereby the stolen clear evidence opening of packaging is provided.Skirt section is relatively dark, and preferably 8mm or the darker impact that is still subject to Cost Problems can reach 20mm deeply.But, the degree of depth can be restricted to and need from mould, to shift out unbroken moulding part for the molded restriction of used concrete plastics, wherein said plastics must flow into all parts of mould in rational time scale.

Skirt section can have 0.8mm, is preferably less than the maximum ga(u)ge of 0.5mm and the wall cross section that reduces can be that 0.2mm is thick, and it is thick that described wall cross section is reduced to 0.1mm at rib 26,28 places.Polypropylene is very easily subject to the impact of stress cracking and is stretched while exceeding its yield point when painted material, and described material will show permanent white marking.Polypropylene has the yield strength of 12-43MPa and for the application, the material with the yield strength within the scope of 12-20MPa is preferred.The polypropylene that is filled with chalk can be used to provide relatively damageable skirt section.But if draw ring and removable portion want function normal, draw ring and removable portion should be not frangible inadequately.To understand, and can use co-injection molding to make skirt section molded to benefit from the most suitable characteristic of the plastics that use in the various parts of described parts by the material that is different from closing appliance remainder.

If attempt is prized and skirt section is pried open by the sharp instruments by any pattern below edge, thin wall section will keep deflection and will occur variable color.If excessive power is applied to thin wall section, described thin wall section will easily be split and upwards peel off at the either side of instrument.The end of splitting of thin wall section prevents from removing and destroys closing appliance so that closing appliance can not be re-used.Carry out at corner part place if prize attempt, mean that by reducing the further fragility that cross section rib 26 produces skirt section will be more prone to split and upwards peel off.Ultra-thin rib is as the frangible tie-beam of tearing of being convenient to wall.May be considered to the most easily open and not show that the part of damaging is as target in the area of reduced thickness 28 of side wall centers.

All thickness reduces to provide by the inside face of moulded skirt 10, if see at Fig. 3.Necessary ridge and rib can form in the steel surface of the molded core for generation of closing appliance.The relative size of the each several part in skirt section is determined the density of the plastics by for molded these parts and melt flow index (MFI).Because there is the narrow gap that the more low-density plastics of high MFI can be flowed through between molded core, use these plastics to allow to form best details.The risk that the thinnest part is damaged in the time that molded core is removed limits the skirt section general thickness of about 0.4mm roughly, although this thickness may utilize the plastics of renewal and molding technique to reduce.Except locking, the outside face in skirt section is perfectly smooth and stops making the outer wall surface in skirt section 10 and the main body of container glossily and merging and only leave the minimum clearance between main body and closing appliance continuously dropping in the thin thin edges adjacent with step 44.The degree of depth of locking only needs about 5mm dark, and therefore the outside face in skirt section can be completely smooth under described height.Keep that the outside lines of packaging are smooth makes more difficult discovery introduce instrument to pry open the inlet point of described closing appliance.

If it is interior to make applying lever below skirt section that the groove 34 that wall cross section reduces is also formed on the horizontal flanges of base portion, skirt section can be away from the remainder of base portion.This groove 34 is used as linkwork to make any power of levering up that is applied to skirt section cause the destruction in skirt section and make base portion still in being attached to the state at container body edge.

Skirt section is relatively dark, and preferably 8mm or 15mm to 20mm are dark.Because skirt section does not have the structure function as sealed package or support content, therefore described skirt section can be formed darker than conventional closing appliance.In such as described packaging, skirt section can decline near certain point in packaging, and at this some place, recess is provided to allow container body to be grasped.Because lever length is along with the degree of depth in skirt section increases and increases, skirt section is longer/darker, more easily guarantees that skirt section will rupture and destroy at rib or groove 34 places.The degree of depth in skirt section is returned the impression of user's entirety impregnability.

Base portion 12 is included in a region 36 in corner part, and 36 carryings of described region are designed at utensil 40 and after removable portion 16 is separated, have received and the formation part 38 of maintenance utensil 40 for storing.

Other features that base portion can be sealed together with lid of making of base portion are described in the patent documentation 0004:WO 99/61337A on 2 days December in 1999 of aforesaid SPRECKELSEN MCGEOUGH Co., Ltd and other prior art patent applications of Bapco Closures Res Ltd., and these patent applications merge in this article by reference.

Container 4 has recessed neck formation part 42, and described neck formation part 42 provides the horizontal stand 44 around container body 4, and the lower edge in the skirt section of base portion will be located the 44 smooth and continuous outside faces that stop providing packaging at described.The upper limb of neck formation part limits the inwardly edge 46 of upset, as shown in Figure 4, and the sensed paper tinsel 14 that is heat sealed in the edge 46 of described inside upset.If warning message can be stamped or be printed onto on the recessed vertical wall of neck formation part to make warning message visible for user, user by know this packaging be not as manufacturing and stolen opening probably.Neck formation part further becomes step backward at second step 48 places.This step preferred angled is so that molded.This provides the exceptional space of the base portion inner side of closing appliance, and the oral area of described exceptional space and container body is adjacent to receive the inwardly outstanding formation part 30 of inside face from skirt section.But this is created in another step 48 in neck formation part does not can be used in and the portion of dangling that replaces base portion locking.In use can carry information warning by the recessed vertical portion 50,52 of the hiding neck formation part of closing appliance.

Preferably, except any recessed or protruding printed text word, neck formation part is smooth vertical wall and any continuously recessed around main body is not provided, and described recessed can being used to continuously engages with the closing appliance that remains on certain position by mechanical device instead of paper tinsel sealing.

Because container body is sealed by sealed foil 14, container body can be filled until edge 46.Therefore, the degree of depth of closing appliance does not affect for the capacity of packaging.

The relative size of the thin-walled in skirt section and the degree of depth in skirt section no doubt need to depend on the overall dimension of packaging and are selected.

Do not there is inside outshot with reference to skirt section and be intended to refer to the inwardly outstanding part of profile from being limited by the thick in wall cross section, skirt section.To understand, there is the whole vertical height part that does not still extend to skirt section in the wall cross section that reduces that is easy to plastic deformation, destroys or peels off in raising skirt section, and the wall cross section that lower edge can reduce than these is thicker.But, as the ridge 60 corner part place occurs so is not given prominence in the whole profile in skirt section.Also be necessary to produce recessed formation part 30 to provide and the engaging of locking 32 above the edge in skirt section.

Claims

1. one kind comprises the packaging of container body (4) and closing appliance (2), described closing appliance is the base portion (6) with lid (8), described lid (8) is suitable for base portion described in capping, described base portion comprise by sagging skirt section (10) around horizontal flanges (12), described base portion limits the opening on the open oral area that is suitable for being engaged in described container body;

Described container body has sidewall, and described sidewall stops in the edge (46) of the open oral area of container body; With

One induction heat sealed foil (14) is suitable for being fixed to edge and the described base portion of described container body;

It is characterized in that, the sidewall of container body inwardly becomes step so that the first step (44) adjacent with the terminal edges in skirt section to be provided; And skirt section is the unstructuredness thin-walled with at least one atenuator region (24,26,28), if be subject to the breaking-down point away from the cross motion of container body to limit skirt section.

2. packaging according to claim 1, wherein said atenuator region comprises the region (24,26,28) that the wall cross section that is molded in inner skirt surface reduces.

3. packaging according to claim 2, the region that wherein said wall cross section reduces is also included in the rib (26) that at least one thickness that the corner part (40) in skirt section locates reduces.

4. according to the packaging described in any one in aforementioned claim, the thickness of the wall in wherein said skirt section is 0.8mm or less.

5. packaging according to claim 4, the thickness of the wall in wherein said skirt section is 0.5mm or less.

6. according to the packaging described in any one in aforementioned claim, the degree of depth in wherein said skirt section exceedes 8mm.

7. according to the packaging described in any one in aforementioned claim, wherein said base portion is polypropylene.

8. according to the packaging described in any one in aforementioned claim, wherein said container body becomes step to provide than more the keep to the side second step (48) of (46) of described first step (44).

9. packaging according to claim 6, at least one of the step part of wherein said sidewall be surface (50,52) warning vertically, and described warning message is only visible in the time that closing appliance is removed.

10. packaging according to claim 7, wherein said warning message produces by the word of protruding seal or gravure.

11. according to the packaging described in any one in aforementioned claim, and wherein said closing appliance uses the plastic material different from skirt section to be fabricated to co-injection molding part.