CN102233977A

CN102233977A - Blister packaging

Info

Publication number: CN102233977A
Application number: CN2011101228435A
Authority: CN
Inventors: N·L·汤姆; S·A·施莱格; G·兰格; P·基尼加基斯
Original assignee: Kraft Foods Global Brands LLC
Current assignee: Intercontinental Great Brands LLC
Priority date: 2010-05-03
Filing date: 2011-05-03
Publication date: 2011-11-09
Also published as: US20110266189A1

Abstract

The invention relates to a blister packaging. Easy open blister packaging suitable for low density products, such as beverage tablets. In one embodiment, a blister package can have a forming layer with a flange and at least one blister cavity having a floor formed to slant at an angle of at least about 15 degrees relative to the forming layer flange, each blister cavity having a perimeter defining an open top and dimensioned to hold one product. The lidding layer can be a laminate sealed to at least the perimeter of the open top of each blister cavity, the lidding layer having a clear PET layer, an adhesive layer, a metal foil layer, a peripherally sealed desiccant layer and a pre-perforated sealant layer to seal to the forming layer, wherein the sealant layer perforations provide air communication between the blister cavity and the desiccant layer and the desiccant peripheral seal prevents air communication beyond the lidding layer periphery.

Description

Blister package

The cross reference of related application

The application requires to enjoy the preceence of No. the 61/330th, 697, the U.S. Patent application submitted on May 3rd, 2010, and this patent application integrally is combined in herein by reference.

Technical field

This product and method relate to blister package (blister packaging), and more particularly relate to the blister package that is suitable for beverage tablet (beverage tablet).

Background technology

The packing that provides the little consumables is provided in blister package.With its base model, blister package can have shaping material layer and capping layer, and shaping material layer has preforming blister (or a plurality of chamber), and capping layer is used for product (or a plurality of product) is sealed in each chamber of shaping material layer.Usually, shape layer can be by thermoformable material (such as poly-mer or other plastics) but or the material of pressure forming (such as aluminium) make.Capping layer can be can break and make by leakproofing material, such as paper, poly-mer, aluminium foil or various combination or laminate.Blister can be arranged to many configurations, such as becoming a series of to form bubble-cap band or a plurality of row and column, takes advantage of 3 blister pack to form (for example) 2.The global shape that usually forms blister and be desired product with keep its in place make before product uses, to minimize move and damage.Shape layer usually is transparent in to allow to observe product.

Blister package has many advantages.They can provide product visual and manufacture easy and relatively inexpensive.Blister pack is suitable for the product of some types, such as hardware (hardware), electronics package, chewing gum, medicine, food and analogue.

A kind of edible product that is suitable for being included in the blister package is to obey water-soluble beverage composition for treating dental erosion with the list of powder or tablet form.Composite with powder type tends to be difficult to control.Replacement scheme is the dried beverage composition for treating dental erosion that preparation is tablet form.A challenge of beverage tablet can be that this tablet may promptly not be dissolved in the cold water or lacks appropriate configuration intensity to keep its integraty under ordinary production, packing, shipment and mode of transport.Particularly like this for the beverage tablet composition, the beverage tablet composition needs structurally enough strong being pushed through the capping layer of blister pack, but has enough low density to allow their rapid dissolvings.

Be known in the art the trial that solves the shape of product that is contained in the beverage tablet in the blister pack.For example, people's such as Xiong the U.S. discloses No. 2007/0141204 and has described various beverage figure of tablet, and it helps to make capping layer to break when power is applied on the shape layer.Exemplary shapes comprises towards the rectangular edges of capping layer with towards the circular surface of shape layer.

Summary of the invention

Therefore, the invention provides the embodiment that is used for blister package, it can have shape layer and capping layer, is suitable for easily removing lower density tablet (such as the beverage tablet), keeps gas tight seal simultaneously before using.In certain embodiments, the humidity level in the annular seal space of blister package can keep by using the moisture absorption layer (such as desiccant layer) in the capping layer that exposes to the chamber of shape layer.

Embodiment can comprise the blister package that is used for storage and distributes each product (individual products), it can have shape layer and capping layer (lidding layer), shape layer has in about 50 microns bead (flange) and at least one blister to 500 micrometer ranges, and this at least one blister has the periphery and the size that limit open top and is suitable for keeping product; Capping layer about 25 microns to the scope of 140 micron thickness, it is sealed at least a portion of periphery of the open top of at least one blister, this capping layer is configured to be applied to many 15 pounds power to shape layer by abut product and breaks, and this product has the hardness in about 3.5Kp to 4.5Kp (kgf) scope.

In one embodiment, the blister package shape layer can be PCTFE and about 75 micron thickness of capping layer in about 75 micron thickness scopes.

In another embodiment, blister package can have shape layer, shape layer is laminate (laminate), it comprise be attached to about 35 microns PE EVOH PE layers to the 55 micron thickness scopes about 50 microns to about 120 micron thickness scopes the PCTFE layer and be attached to about 200 microns PVC layers to about 350 micron thickness scopes of PE EVOH PE layer.

In another embodiment, capping layer can be laminate, it comprises the clear PET layer in about 7.5 micron thickness to 40 micron thickness scopes, and the clear PET layer is attached to about 6 microns metal foil layers to the 30 micron thickness scopes, and metal foil layer is attached to about 7 microns sealant layers to the 55 micron thickness scopes.Herein, sealant layer can provide sealing to the periphery that limits the blister open top at least.

Alternatively, embodiment can have line (scored lines of weakeness) a little less than the indentation of the pet layer of capping layer, and wherein capping layer can break by 13 pounds the power at the most that applies in inside.The weak line of the indentation of PET can be laser beam cutting.Alternatively, embodiment can comprise the moisture absorption layer that is placed between paper tinsel layer and the sealant layer, sealant layer also comprise pre-punching opening so that moisture absorption layer expose to blister.Sealant layer can be the laminate of the adhesive phase that is attached to encapsulant film.Alternatively, be to be attached under the situation of adhesives rete of sealant film at sealant layer, the packing moisture absorption layer can be placed between paper tinsel layer and the sealant layer, and the sealant film also have pre-punching opening so that moisture absorption layer expose to blister.

In alternate embodiment, the blister bottom can form with respect to the shape layer bead with oblique at least about the angle lapping of 15 degree.

Embodiment can be used for packing following such product: have permission break by capping layer the is intact hardness and the integraty of (in-tact rupture), overcome surface tension and in the ability that is being less than dissolving in 4 minutes in being positioned over water.Alternatively, this product can have with pet layer in the square edge of weak line adjacent positioned.

One embodiment can be the blister package that is used to store and distribute each product, it has shape layer and capping layer laminate, shape layer has bead and at least one blister, blister bottom is formed with respect to the shape layer bead with the angle tilts at least about 15 degree, and each blister has the periphery and the size that limit open top and is suitable for keeping product; And, the capping layer laminate is sealed to the periphery of the open top of each blister at least, this capping layer has the sealant layer of the desiccant layer of clear PET layer, adhesive phase, metal foil layer, peripheral seal and pre-punching to be sealed on the shape layer, and wherein the air communication and the desiccant peripheral seal that are provided between blister and the desiccant layer of the perforation of sealant layer prevents that air communication from surpassing the capping layer periphery.

In a preferred embodiment, the blister package shape layer can be laminate, and it comprises about 75 microns PCTFE layer that is attached to about 44 microns PE EVOH PE layer and the about 254 microns PVC layer that is attached to PE EVOH PE layer.

In substituting preferred embodiment, the blister package capping layer can be laminate, it has about 18 microns clear PET layer, the clear PET layer is attached to about 10 microns metal foil layer, metal foil layer is attached to about 25 microns sealant layer, and wherein sealant layer provides sealing to the periphery of the open top that limits blister at least.

The further feature of present embodiment can comprise that size is suitable for admitting the external packing box of blister pack, and this external packing has open end and relative sealed end.Alternatively, blister can be provided as two and take advantage of three configurations.

By following description and claims, further feature will will be more obvious for the packaging field technical personnel.

Description of drawings

With reference to following description and accompanying drawing, the feature of preamble and further feature will become obviously, and wherein similar Reference numeral is represented similar components, and in the accompanying drawings:

Fig. 1 is the transparent view of the exemplary blister package of present embodiment;

Fig. 2 is the top view of a blister of exemplary blister package;

Fig. 3 is the section drawing of the blister that intercepted of the section line A-A in Fig. 2;

Fig. 4 is the backplan of the part of the exemplary desiccant layer that intercepted of the section line B-B in Fig. 3;

Fig. 5 is the alternate embodiment of the desiccant layer of exposure;

Fig. 6 is the section drawing of a blister of the alternate embodiment of the exemplary blister package that intercepted of the section line A-A in Fig. 2;

Fig. 7 is the top view of exemplary outer box and blister pack;

Fig. 8 is the top view of exemplary outer box and the blister pack that partly removes;

Fig. 9 is the backplan of exemplary outer box and the blister pack that partly removes;

Figure 10 is the top view of exemplary blister pack; And

Figure 11 is the section drawing of the alternate embodiment of the blister that intercepted of the section line A-A in Fig. 2.

The specific embodiment

This paper provides the embodiment of blister package, and it can have rigidity shape layer and rupturable capping layer, is suitable for easily removing low density products, keeps gas tight seal simultaneously before using.Exemplary product can comprise any numerous food, includes, but is not limited to instant flavouring beverages tablet.In certain embodiments, the humidity level in the annular seal space of blister package can keep with the moisture absorption layer (such as desiccant) in the capping layer of (varying degree) exposure in various degree by using to the blister of shape layer.In other embodiments, shape of product also can be assisted capping layer is broken to remove the ability of product.Embodiment also can have indentation feature (for example, use laser) but to strengthen disruptiveness.Embodiment as herein described illustrates the blister package that is suitable for comprising a plurality of products substantially, but can consider any a plurality of blister in these embodiments.For example, in one embodiment, provide 6 tablets of each blister package (for example, taking advantage of 3 configurations) at 2 shown in Fig. 1 and Fig. 7 to Figure 10.

As mentioned below, single clothes product can be positioned in each blister, but other embodiment can provide a plurality of products in each chamber.Present embodiment can promote pollution-free shared and product portability.A tablet or one group of tablet can not cause other tablet to atmospheric exposure to the exposure of atmosphere, because each blister is sealed airtightly.This can allow all the other leak free product increased shelf-life (such as at least 2 months).Described hereinafter have in the embodiment of the sealing moisture absorption layer of the interpolation that blister exposes, and Keeping life can even further extend to about 12 months to 24 months.

Blister has weak line (not shown) alternatively between each in the blister in shape layer makes each blister to remove from blister pack.Weak line can form by perforation.In use, the customer still can select to keep blister container to be one to use up to reduce rubbish up to tablet.

Now go to accompanying drawing, the preferred embodiment that is used for this blister package 10 of product 12 shown in Figure 1, it has shape layer 24, and shape layer 24 has bead zone 36 and by a plurality of blister 32 of capping layer 38 leak frees.The embodiment of Fig. 1 illustrates the outer box 34 of optional cardboard.Should be noted that any a plurality of blister 32 is possible.For easy to understand, Fig. 2 illustrates the top view of an embodiment of single blister 32.Shape layer 24 can be sealed to capping layer 38 airtightly, as by shown in the cross section among Fig. 3.

It is flexible, rupturable and/or can open that exemplary capping layer 38 shown in Figure 3 can be, and the modification of many types is possible.Capping layer 38 can have about 25 microns to 140 micrometer ranges and be preferably about 75 microns gross thickness.In one form, cover closing material can have total basic weight of about 38.9 pounds/order.In a preferred embodiment, as shown in Figure 3, capping layer 38 is rupturable and has ground floor 14 and adhesive phase 16, ground floor 14 can be transparent polyethylene terephthalate (PET) layer, it has about 7.5 microns to 40 microns and be preferably about 18 microns thickness, to the scopes of 5 grams and preferably in the scope that every approximately sq m 3 restrains, adhesive phase 16 is used for layer 14 is attached to metal foil layer 40 adhesive phase 16 at about 1.5 grams of every sq m.Metal foil layer 40 can be attached to optional moisture absorption layer, such as desiccant layer 18 (describing hereinafter), is sealant layer 29 afterwards, and it can be attached to the bead 36 of shape layer 24.

Paper tinsel layer 40 component of capping layer 38 preferably based on aluminium and can have every approximately sq m priming coat about 1.50 the gram.Priming coat can be shellac, ethylene acrylic, methyl acrylic acid and analogue.Paper tinsel can be in about 6 microns to 30 microns scope, but is preferably about 10 microns.Sealant layer 29 can be adhesives rete 20, and adhesives rete 20 can be attached to sealant film 22 on the desiccant layer 18.Sealant layer 29 can and be preferably about 25 microns heat seal in about 7 to 55 microns scope.Adhesives 20 can be laminating adhesive (0.5 to 4 micron).Sealant can be ethene polymers blown film aquaseal or casting (casted) the polypropylene aquaseal that (is preferably 35 microns) in 15 to 50 micrometer ranges.

Capping layer 38 can easily be broken or opened alternatively to provide product approaching by the user.Opened at capping layer 38 among the embodiment of (that is, not breaking), sealant layer 29 can be the pressure sensitive adhesive (PSA) between the bead 36 that is coated on capping layer 38 and shape layer 24.

Capping layer 38 preferably applies power by the blister 32 to shape layer 24 and breaks, particularly for the embodiment of gross thickness greater than 25 microns.The power that is applied to shape layer 24 is transferred to product 12, transfers to capping layer 38 then.But product configuration and capping disruptiveness should break and remove during keep the product integraty.In greater than 25 microns embodiment, capping layer 38 can preferably weaken by adding line of weakness 26, passes with the auxiliary product/tablet that promotes.Weak line (or a plurality of weak line) 26 (referring to Fig. 2 and Fig. 3) can place capping layer 38 to cross over the position of blister 32 so that capping 38 is broken, such as by laser grooving and scribing.Capping layer 38 weak lines 26 place contiguous product right angle or other sharp edges 44 (if existence) to locate alternatively.Should be noted that under the situation outside line of weakness 26 adds capping layer 38 to that they and aquaseal otch 28 are offset, aquaseal otch 28 makes desiccant to the blister interior exposed.

Air in blister 32 can be communicated with the optional moisture absorption layer (desiccant layer 18) of capping layer 38, and is all as shown in arrow 30, via the aquaseal opening 28 among Fig. 3 and Figure 11.In Fig. 3, sealant layer 29 can have the aquaseal opening 28 of pre-punching before adhesive phase is pressed onto desiccant layer.In Figure 11, opening 28 only passes sealant film 22 and forms.Should be noted that in this embodiment adhesives rete 20 does not stop that the moisture from the top of chamber space arrives the moisture absorption layer at this adhesives rear (scavenger).Sealant layer 29 openings 28 and the configuration of some types are possible.Fig. 4 and Fig. 5 illustrate and make two the such embodiments of desiccant layer 18 to the aquaseal opening 28 of the inner air chamber of bubble-cap exposure.Desiccant 18 in uncracked bubble-cap can utilize desiccant sealing 42 and the surrounding air seal isolation of moving to from the blister of packing the edge or break in the desiccant layer.As hereinafter in more detail as described in, desiccant sealing 42 can be formed by the delineation of hot edge or the hot the Knife tool of partial cut.In brief, in having the embodiment of a plurality of blister, desiccant sealing 42 can protect the desiccant layer of uncracked bubble-cap to avoid air exposure towards periphery.

In certain embodiments, desiccant layer 18 can be continuous or discrete basically desiccant particle layer.Preferably, desiccant layer 18 is continuous basically, comprises the particle that touches each other and allows moisture migration on whole layer 18.Therefore, breaking of capping layer 38 may make the condition exposure towards periphery of whole desiccant layer 18 and lose hygroscopic property subsequently.This loss can be remedied in the following manner: apply capping layer 38 as discrete (each) label, and the opening that its peripheral seal is isolated surrounding air rather than extended beyond each blister bead around it, and utilize (for example) pressure sensitive adhesive and apply.

Perhaps, capping layer 38 useful binders are laminated to shape layer 24, afterwards along each blister 32 hermetically drying agent layer, such as sealing 42 by desiccant.Desiccant sealing 42 can form so that separate each bubble-cap fully and preserve dehumidizer in the lamination by fusion piercing.Separately the alternative of the desiccant in the blister 32 can be and utilizes hot cutter to carry out machine cuts or other mechanical scratching to cut all layers of wearing except sealant layer.

Shape layer 24 can be preferably translucent at least, and most preferably transparent and/or coloured.Shape layer 24 preferably provides moisture and gas shield.In one embodiment, shape layer 24 can be polychlorotrifluoroethylene (PCTFE) material, such as the material of being sold by Honeywell with brand name ACLAR.PCTFE is widely used in the drug packaging and in many other application, this is owing to its moisture resistance and chemical inertness.The PCTFE layer can and be preferably about 75 microns in about 50 microns to 500 microns scope.In another specific embodiment, shape layer 24 materials can be following laminate: about 50 to 120 micrometer ranges and be preferably about 75 microns PCTFE; Every approximately sq m 2 grams are to 4 scopes that restrain and be preferably the adhesives that every approximately sq m 3.0 restrains; About 35 to 55 micrometer ranges and be preferably about 44 microns PE EVOH PE; Every sq m about 2 restrains to the scopes of 4 grams and is preferably the adhesives of every approximately sq m 3.0 grams; And, about 200 microns to 350 micrometer ranges and be preferably about 254 microns PVC.EVOH can be considered to the material of EVA (vinyl-vinyl acetate copolymer) modification.In one form, shape layer 24 can have total basic weight of about 336.4 pounds/order.

Wait that the exemplary product 12 that is contained in the blister 32 can have different shape and can be food.For beverage tablet embodiment, product 12 preferably: maximum outside diameter is less than about 23mm (and most preferably being about 19mm); Has permission by capping layer 38 intact hardness of breaking and integraty (for example, tolerate about 15 pounds power and not disintegration significantly, and preferably tolerate about 13 pounds power); Can overcome water surface tension; And can in less than about 2 minutes to 4 minutes, dissolve.Outside diameter measuring accounts for the bottleneck of (account for) typical 23mm.In a preferred embodiment, blister package 10 coefficient of hardness that will allow product 12 to have at about 3.5 to 4.5Kp (kgfs) remains intact during breaking at capping layer 38.In this case, the user can apply power to the bubble-cap of shape layer, and it is transferred to product to impel product against capping layer 38 and pass capping layer 38.

Preferably, be under the situation of beverage tablet at product 12, measure its final expection beverage concentration in 8 ounces of water in advance.Alternatively, product can be in being positioned over water or liquid, aqueous in the time bubble, such as discharging by carbon dioxide.The weight of product tablet 12 can be at about 2.4 grams to the scope of 2.6 grams and preferably in the scopes of about 2.42 grams and 2.56 grams.In certain embodiments, product 12 can be shaped as to be convenient to capping layer 38 and to break, such as by having edge, the right angle adjacent with capping layer (sharply) 144, as shown in Figure 6.Alternatively, product 12 beverage tablets can have spices and other composition of scheduled volume, such as sweetener, vitamin, mineral matter and/or antioxidant.Mark can be printed on the product 12.

Alternatively, (wherein element and Fig. 3 are suitable as shown in Figure 6, but before Reference numeral, add 1), thus the bottom 146 of shape layer 124 blister 132 can be angled/and tilting can more effectively make capping break and keep tablet 112 integratys with the concrete zone that extraction power is focused on tablet 112.In a preferred embodiment, angle of inclination 148 (shown in arrow) can spend into about 15 with respect to the flange surface of shape layer.

Also have secondary package and three packings to comprise blister package embodiment.For example, each blister pack 10 can be contained in the outer box 34.In a form, outer box 34 can be by being preferably about 16 points (point) (promptly, 16/1000 (16/1,000ths of an inch)-Yue 10 to 40 scope of one inch) SBS cardboard (solid bleached sulphite paperboard) or other cardboard with good rigidity and rigidity characteristic and very clean glossy surface form.Preferably, outer box 34 sizes are suitable for admitting blister pack 10 and have opening (maybe can open) end and relative hermetic terminal.Openable end can have closeable renovating (not shown) and drop out to prevent blister pack.In addition, Fig. 9 illustrates the optional suspension tongue 50 that is used to increase the product introduction alerting ability.

A plurality of blister pack that encased by outer box can be positioned over pallet (not shown) and be used for the shelf displaying.Equally, pallet can be 16 SBS cardboard.Each pallet also is positioned in the corrugation pig.Therefore, for example, the quantity scheme can be as follows: 6 product tablets of every bubble-cap, take advantage of 3 configurations with 2; Outer 1 bubble-cap of box of each cardboard; 12 bubble-caps of each pallet; And, 4 pallets of each corrugation shipping case.

Though described preferred embodiment in detail, made variants and modifications in can be in the scope of given embodiment.

Claims

1. blister package that is used to store and distribute each product comprises:

Shape layer, it has in about 50 microns bead and at least one blister to 500 micrometer ranges, and described at least one blister has the periphery and the size that limit open top and is suitable for keeping product; And

Capping layer, it is in the scope of about 25 to 140 micron thickness and be sealed at least a portion of periphery of open top of described at least one blister, described capping layer is configured to be applied to many 150 pounds power to described shape layer by abut product and breaks, and described product has the hardness in the scope between about 3.5 to 4.5Kp (kgfs).

2. blister package according to claim 1 is characterized in that, described shape layer is the PCTFE in about 75 micron thickness scopes, and described capping layer is about 75 micron thickness.

3. blister package according to claim 1, it is characterized in that, described shape layer is a laminate, it comprise be attached to about 35 microns PE EVOH PE layers to the 55 micron thickness scopes about 50 microns to about 120 micron thickness scopes the PCTFE layer and be attached to about 200 microns PVC layers to about 350 micron thickness scopes of described PE EVOH PE layer.

4. blister package according to claim 1, it is characterized in that, described capping layer is a laminate, it has about 7.5 microns clear PET layers to the 40 micron thickness scopes, described clear PET layer is attached to about 6 microns metal foil layers to the 30 micron thickness scopes, described metal foil layer is attached to about 7 microns sealant layers to the 55 micron thickness scopes, and described sealant layer provides sealing to the periphery of the open top that limits described blister at least.

5. blister package according to claim 4 is characterized in that also being included in the weak line of indentation of the pet layer of described capping layer, and described capping layer can break by the power that is applied to many 13 pounds in inside.

6. blister package according to claim 5 is characterized in that, the weak line of the indentation of described PET is a laser beam cutting.

7. blister package according to claim 4 is characterized in that also comprising the moisture absorption layer that is placed between described paper tinsel layer and the sealant layer, described sealant layer also comprise pre-punching opening so that described moisture absorption layer expose to described blister.

8. blister package according to claim 7 is characterized in that, described sealant layer is the laminate that is attached to the adhesive phase on the encapsulant film.

9. blister package according to claim 1 is characterized in that, the blister bottom forms with respect to described shape layer bead with oblique at least about the angle lapping of 15 degree.

10. product that is used for blister package according to claim 5, described product has intact hardness of breaking and the integraty of permission by described capping layer, overcomes surface tension in the time of in being positioned over water and in the ability that is being less than dissolving in 4 minutes.

11. product according to claim 10, it is characterized in that also comprising with described pet layer in the square edge of weak line adjacent positioned.

12. a blister package that is used to store and distribute each product comprises:

Shape layer, it has bead and at least one blister, and the bottom of described blister is formed bead with respect to described shape layer with oblique at least about the angle lappings of 15 degree, and each blister has the open-topped periphery of qualification and size is suitable for keeping product; And

The capping layer laminate, it is sealed to the periphery of the open top of each blister at least, described capping layer has the sealant layer of the desiccant layer of clear PET layer, adhesive phase, metal foil layer, peripheral seal and pre-punching to be sealed on the described shape layer, and air communication and desiccant peripheral seal that the perforation of described sealant layer is provided between described blister and the desiccant layer prevent that air communication from surpassing the capping layer periphery.

13. blister package according to claim 3 is characterized in that, described shape layer is a laminate, and it comprises about 75 microns PCTFE layer that is attached to about 44 microns PE EVOH PE layer and the about 254 microns PVC layer that is attached to described PE EVOH PE layer.

14. blister package according to claim 4, it is characterized in that, described capping layer is a laminate, it comprises about 18 microns clear PET layer, described clear PET layer is attached to about 10 microns metal foil layer, described metal foil layer is attached to about 25 microns sealant layer, and described sealant layer provides sealing to the periphery of the open top that limits described blister at least.

15. blister package according to claim 4, it is characterized in that, described sealant layer is the laminate that is attached to the adhesives rete of sealant film, and described packing also comprises the moisture absorption layer that is placed between described paper tinsel layer and the sealant layer, and described sealant film also comprise pre-punching opening so that described moisture absorption layer expose to described blister.