CN1224401A

CN1224401A - Freshness retaining packaging

Info

Publication number: CN1224401A
Application number: CN98800529A
Authority: CN
Inventors: 本尼迪克·基韦尼; 肯尼思·P·戴维森; 彼得·J·卡奇马雷克
Original assignee: Rothmans Benson and Hedges Inc
Current assignee: Rothmans Benson and Hedges Inc
Priority date: 1997-04-24
Filing date: 1998-04-09
Publication date: 1999-07-28
Also published as: AU6915998A; NO986084L; CA2203597A1; NO986084D0; ZA983207B; KR20000016659A; JP2000513686A; WO1998049072A1; EP0914283A1; TW370504B

Abstract

Flow seal technology is applied to cigarette packages to facilitate rapid cigarette packaging and provide excellent vapour moisture and gas barrier properties. The flow seal package (16, 18) may include a resealable cigarette access (26) which may be opened to permit withdrawal of the cigarette and then a suitable tab (25) resealed on the barrier material to reseal the access opening. The flow seal technology lends itself to vacuum packaging of the cigarettes. Due to the resealing of the access opening, freshness of the cigarettes can be maintained for up to several days.

Description

Fresh-keeping packaging

The present invention relates to a kind of cigarette packaging method, it has increased the freshness of cigarette during storing and smoking, and the additional device of oriented smoker indication freshness of this cigarette package when opening bag at first.

Just understand for a long time, cigarette is divided into many inner wrappings can not only be between its storage life, and can prolong the freshness of cigarette in the packing box during smoking.Verified, the standard cigarette of 20 dresses is packaged in after the open compact, and less than in 24 hours, the loss of a large amount of moisture content will cause the taste of cigarette to degenerate in the cigarette from the beginning of unpacking.Cigarette is divided into many inner wrappings can reduce and be exposed to airborne number of cigarettes for a long time, provides to make whole cigarette package keep the packing method of cigarette freshness in the period of smoking.US Patent 2,185,604 disclose a kind of container, have wherein packed many little cigarette packets.Independent tear-open strip is all arranged on each parcel,, at this moment, have only the cigarette beginning of adorning in this parcel to lose moisture content so that a little cigarette package is come out.Also have lid on this packing box, further prevented the cigarette loss moisture content that exposes.In addition, tear-open strip can also paste the cigarette packets of opening again and get on, so that reduce the loss of some moisture content.

US Patent 3,148,768 disclose a kind of inner wrapping of the many separations in the packing of whole 20 or more cigarettes.Has necessary parcel in this inner wrapping, to keep the freshness of these cigarettes, till packing is opened.This packing can fold the tongue piece on top more again and go back to carry out local resealing.But, to carry on as before and leave the gap, several Zhi Xiangyan in this part also can lose moisture content.But this is not big problem because the cigarette in that parcel will be before spoiled very fast being exhausted.US Patent 3,732, disclose in 663 a kind of a small amount of cigarette pack in strip and/or the method in the plastic sheeting.This packing can guarantee the freshness of cigarette before opening.This packing has one to be hinged on renovating on the enclosure portion, so that the temporary transient storage of cigarette.Yet this pivotally attached is renovated but can not reseal this little cigarette package.This packing also can be designed to the independent packing of many inner wrapping cigarettes or bundle shape cigarette packets.Cigarette is then released from each parcel.US Patent 5,333,729 disclose a kind of sealing cover of using for the soft cigarette of diaphragm seal that can reseal.This sealing cover or be arranged on the leak free cigarette pack perhaps is enclosed within on the cigarette packets by the smoker.This sealing cover has the cover plate that scribbles pressure sensitive adhesives, is used for film is resealed flexible packaging.

US Patent 4,807,754 disclose a kind of composite material for packaging that is used to separate leak free cigarette.Be used for isolated moisture content, the various film stack of steam and so on have formed the parcel of a cigarette package together, and it can prevent the loss of moisture content in storage period.But after packing was opened, the advantage of this fresh-keeping composite material had just disappeared, because this moment, cigarette was exposed under the normal atmosphere, a cigarette package that has exposed is with very fast loss moisture content.In the PCT of Luo Siman international service Co., Ltd application WO97/42098, the cigarette pack of a kind of interchangeable dividing plate leak free hinge type capping is disclosed, this packing can be opened with tearing dividing plate.

According to one aspect of the present invention, a kind of packing box is provided, it is not only in the storage life of cigarette, and after packing is opened, still can guarantee the freshness of cigarette, and, when packing is when opening for the first time, can also provide the indication of alternative cigarette freshness.

According to one aspect of the present invention, provide a kind of can be many cigarette packs flow sealed type Cigarette pack inside.This flow sealed package technology facility the quick packing of cigarette, and the material that is used for this packing box has the performance of good isolated moisture content, steam and gas.This packing box can be provided with the cigarette withdrawing device of resealable in the upper end near it, when opening it, can extract the Linear Leaf Speedwell cigarette out, and can reseal immediately with manual or automatic mode when closing the packing box of cigarette.Perhaps, in containers of cigarettes, can when opening for the first time, the air-flow of one ballistic kick be arranged, indicate the freshness of cigarette to the smoker at vacuum lower seal packing box with convenient packing box.Many advantages and the characteristics relevant with cigarette pack of the present invention system will be described in detail in conjunction with the preferred embodiments.

According to one aspect of the present invention, a kind of method of packing a bundle cigarette is provided, this method comprises the folded barrier layer of piece layer folding around a bundle cigarette, then, along the above-mentioned barrier layer after folding of the direction sealing of bundle cigarette, and each termination of tying up direction cigarette seals the above-mentioned barrier layer that folds with flow leak free method with the flow encapsulating method.

According to another aspect of the present invention, a kind of barrier layer packing that are used to pack a bundle cigarette are provided, this barrier layer has a flow sealing seam perpendicular to cigarette length, with each flow sealing seam of tying each side along cigarette, and be used to open above-mentioned barrier layer, form the device of a cigarette egress hole.

Below, embodiments of the present invention will be described in detail with reference to the accompanying drawings.In the accompanying drawing:

Fig. 1 is according to the standard pack box of one embodiment of the present of invention and the block diagram of sliding part;

Fig. 2 is the block diagram that the packing box among Fig. 1 is in open mode;

Fig. 3 is the block diagram of the packing box among Fig. 2 when having the outlet that can reseal and opening;

Fig. 4 is when the egress hole that can reseal is used for the cigarette case of flexible packaging, the block diagram of a kind of interchangeable embodiment;

Fig. 5 is the cross-sectional side view of packing box when egress hole is closed among Fig. 4;

Fig. 6 is the cross sectional drawing of the above-mentioned outlet of expression when opening;

Fig. 7 is that the flexible packaging box among Fig. 4 exports the another kind of cross sectional drawing when opening;

Fig. 8 is the packing box among Fig. 1 and the lateral plan of sliding part, and another embodiment of passage is opened in expression;

Fig. 9 is the lateral plan that the packing box among Fig. 8 is in open mode;

Figure 10 is the top view that is used for the paillon foil of flow sealed package;

Figure 11 gathers together to be placed on a bundle cigarette in the carriage;

Figure 12 represents that a bundle cigarette among Figure 11 is placed in the carriage;

Figure 13 is the block diagram of above-mentioned carriage when pushing ahead in order to form the flow sealed package in paillon foil inside;

Figure 14 represents a bundle cigarette packets got up and each step when forming horizontal flow sealing seam;

Figure 15 represents the flow sealing packaging box of cigarette is cut off, and the side is folded up the scheme drawing of each step that forms the finished product packing box;

Figure 16 represents the another kind of form of a bundle cigarette in a corresponding carriage;

Figure 17 is the block diagram of the flow sealing packaging box of a bundle cigarette among Figure 16;

Figure 18 is the lateral plan that is used for opening automatically another embodiment of outlet; And

Figure 19 is the lateral plan that the outlet among Figure 18 is in open mode.

Fresh-keeping packaging of the present invention has overcome the many problems that exist in the prior art. This packing side Method not only can be preserved desired water content in the cigarette in storage process, and when the cigarette storage Can also prevent in the time of in quite moist environment that cigarette from producing mildew. This packing is airtight, institute Can use airing form when the containers of cigarettes, be filled with and a kind ofly can be used for stoping the tobacco leaf of cigarette On grow mould gas. This packing is very tight, so loose tobacco leaf can not be scattered in packing The outside of box, or fall in someone's the pocket. It is close that the sealing of this packing box can be made vacuum Envelope is so can be pumped into and slightly be vacuum state in the inside of packing. When the user unpacks, The freshness that represents product with regard to having one slight impact air-flow. Cigarette can be true in part Pack under the empty condition, perhaps can under a little warmer environment, pack, cool off with box lunch When getting off, produce some vacuum in the inside of packing. The vacuum packaging of product can strengthen packing Bulk strength is particularly when using the hardboard box that cigarette is supported to needed package shape. Such structure can be cancelled external packing. All advertising messages and so on can be imprinted on wrapping paper On the surface. According to needed pattern kind, can adopt various paillon foil to consist of, comprise The multilayer paillon foil that can present hologram image. This airtight packing also helps to spray cigarette Menthol, and in packing box, keep fresh menthol fragrance. Can also be in-built at packing box Enter the crystalline solid of menthol, even so that after first time open compact, because the packing outlet The characteristics of resealable, the menthol fragrance in still keeping packing.

See also Fig. 1 and 2, representative type shell and sliding part packing box 10 have standard, show the outer cardboard case 12 of common advertising message.Outer board cartoon 12 has common top and renovates 14, and an

independent packing box

16 or 18 are arranged in each is renovated, and the cigarette that general quantity is housed in each packing box is equipped with 25 cigarettes altogether.When wanting open compact, can upwards promote to be contained in the bottom 15 of the sliding part 17 in the shell 12.As shown in Figure 5, each

packing box

16 or 18 all is equipped with two row's

cigarettes

20 and 22 in the ordinary way in its inside.Yet the structure of packing box is different fully.Each

packing box

16 and 18 respectively has a thin material 24, and this block of material has formed the barrier layer of moisture content usually, the barrier layer of steam and structural barrier layer.The material of this barrier layer is the stacking material of several layers preferably, and each layer all has specific function.These barrier layers have formed the barrier layer of moisture content and gas at least, and also have additional fragrance (for example menthol) barrier layer usually, structure barrier layer or the like.Above-mentioned barrier layer can also comprise the barrier layer that adiabatic layer and adhesive layer are provided.

Above-mentioned sheeting 24 uses the folding and sealing according to the rules of standard of known flow sealed type machinery.For example, US Patent 4,420,080 discloses the dispense container of various types of resealables, and the box of resealable is wherein made with the flow sealing technology of standard.The outlet of the resealable of this packing box comprises a tongue piece of reusing that has pressure sensitive adhesives, and when for the first time when packing box is raised tongue piece, it just draws back packing box wall with holes from packing box, exposes an opening.When take out the Linear Leaf Speedwell cigarette in packing box after, tongue piece can cover on packing box again, and with pressure it is resealed.The adhesive agent of above-mentioned resealable has enough pressure-sensitive characters to form sealing, prevents that moisture content from overflowing or enter in the packing box.According to the embodiment among Fig. 3, the outlet 26 of the resealable that occurs with tongue piece 27 forms upwards lifts along the direction of arrow 23, opening 29 is come out, thereby can take out one or a few Zhi Xiangyan from each packing box 16 or 18.After taking out needed cigarette, the tongue piece 26 of the outlet of resealable can cover the surface 28 of packing box again, reseals, thereby keeps the freshness of packaged cigarette.On the lower surface 25 of tongue piece 26 suitable pressure sensitive adhesives is arranged, form gas tight seal, prevent the loss and the increase of moisture content moisture content.The lid 14 that reseals with carded packaging box 12 of above-mentioned packing box all independently works, yet, also can combine the function that opens and closes lid and reseal according to the mode described in Fig. 8 and 9.

The flow sealing technology also can be applied to soft limit packing box, for example packing box among Fig. 4 31.This packing box has the outer wall of folding up at label 35 places 33, to form clean and tidy outward appearance.An outlet 39 of the present invention is arranged on the top 37 of flexible packaging, and it is formed by tongue piece 41, and this piece tongue piece can be torn from surface 43.Tongue piece 41 has one deck pressure sensitive adhesives on its lower surface 45.When tearing tongue piece 41, pressure sensitive adhesives just one shear with mould the wall portion of getting off with 47 the form band of cutting into slices get off, this piece section has torn from the remainder of outer wall 33, provides an outlet for taking cigarette.After cigarette is released, in zone 45, adhesive agent is exerted pressure, just the surface 43 of opening 49 along packing box sealed up.

As illustrated in Figures 5 and 6, in a carboard shell or carriage 30, adorned two row's

cigarettes

20 and 22, and shell is wrapped in the outer sheeting 24.The outlet 26 of resealable comprises the section 32 of an actual package material and is the outer seal membrane of tongue piece 34 shapes.Upwards tear it the end 36 of the seal membrane of pull tab sheet from the surface 38 of packing box, simultaneously, also the section 32 of diaphragm is torn, and exposes Linear Leaf Speedwell cigarette 22.Outlet tongue piece 34 be under the state of opening fully take out cigarette after, can cover the diaphragm 34 of resealable again on the surface 38 of packing box, reseal this packing box, up to using again later on.

Another embodiment of the outlet 26 of resealable is shown in Fig. 7, and wherein, the diaphragm 40 of resealable is fixed on the surface 38 of packing box.The end 42 of the resealable of outlet 26 can be drawn back from the top 44 of packing box, so that expose cigarette, takes out from packing box.During the outlet of the resealable on drawing back packing box, the sliced section on the diaphragm 46 has just been taken off.In the time will resealing packing box, upwards pull out dispute sheet 26, make it encase the surface of packing box again, cover end face 51 again, sealing up around the opening, to keep the cigarette freshness in use in this packing box.

See also Fig. 8 and 9, represented a kind of mechanical device that on Cigarette pack 53, opens and closes the outlet of resealable among the figure.The shell 55 that a band sliding part 57 is arranged according to this packing box 53 of present embodiment.Sliding part 57 can be shifted the top of shell 55 onto, and the inner packing 59 of cigarette is come out.Inner packing 59 has a foil packages paper 61, and cut with mould at 63 places at label, forms an opening at the surface 65 and 67 places, top of packing box.Sliding part 57 has usual top and renovates 69, and this is renovated 69 usefulness hinges and is connected around the boundary 71.Renovating 69 sticks with glue with 75 and is bonded on the packing box by the tongue piece of tearing 73.

As shown in Figure 9, when renovating 69 when the surface 65 of packaging foils is drawn back, perforation 63 can allow paillon foil part 77 and renovate 69 and draw back together, thereby has formed an opening 79, so that cigarette 22 is released along the direction of arrow 81.After cigarette is taken out, as long as pull down renovating 69, cover the surface 65 of a cigarette package, packing box has just resealed.On the inside face of tongue piece 73 pressure sensitive adhesives is arranged, it can be bonded on the surface 65 of packing box, and opening 79 is sealed up.As long as above-mentioned pressure sensitive adhesives allows inside face 73 65 contact with the surface, just can form sealing, preventing the loss of water part, till next cigarette is released in the packing box.

Figure 10 represents to be used for containers of cigarettes, has the sheeting of stacked barrier layer.This sheeting 24 has many grooves 48 usually, and these grooves can allow wrapping thin slice fold up around cigarette, forms finished product

rectangular pack box

16 or 18 as shown in Figure 1.If there is not groove on the thin slice, then generally all indicated the line that is easy to recognize around the folding place of cigarette bundle at thin slice.Above-mentioned thin slice can also have advertising message or other artistic works at regional 50 places.Thin slice 24 can be a kind of stacked thin slice, so can add various decorative characteristics therein.Zone 50 more or less defines the front portion of packing box.A kind of profile is the opening that comes out with die cuts of section 52 shapes, and is perhaps local, perhaps whole, cuts out on sheeting 24.This with die-cut program and outside seal diaphragm 34 is fixed in the section 52, guaranteed draw back resealable be bonded in end tongue 36 on the packing box surface 50 time, section 52 is drawn back, form the opening that exports usefulness.This technology is disclosed on the US Patent 4,420,080 above-mentioned, is used for containers of cigarettes now, the convenience of extracting or many cigarettes out is provided from packing box, and has kept the freshness of cigarette.At needs a bundle cigarette is carried out under the vacuum-packed situation, as you know, with the program of die-cut with pack be that mode to keep vacuum in the assurance packing box before first time open compact is carried out.For example, as long as, just can keep desired vacuum with mould partial cut thin slice 24.

Sheeting 24 among Figure 10 folding and encase a bundle cigarette among Figure 11 around.This bundle number of cigarettes is common 12 or 13.This bundle cigarette can be contained in the carriage 56.This carriage normally is used for when this bundle cigarette will be carried out the flow sealed package this a bundle cigarette being tied.Use carriage 56 in the process that packing is carried out, to provide number of cigarettes identical packing.The first step that seals this a bundle cigarette is folding and hermetic terminal 58 and 60.These two zones are folded up, and form sealing band 62 between two sealed rollers 83 and 85 that rotate round about.Sealing band 62 extends on the direction perpendicular to cigarette bundle 54 along arrow 64.Usually, thin slice 24 is continuous, shown in Figure 13 and 14, and as shown in figure 10, upwards folding thin slice again by means of the carriage of cigarette is aimed at the groove 48 on the thin slice, cover cigarette bundle 54.The effect of carriage is cigarette to be bundled in each step of packaging process can not scatter.Flow sealing band 62 usefulness rollers 87 flatten, and form the foldable layer 89 of a flow sealing band.The roller of the flow sealing band 66 usefulness contrarotations of end is forming on the hermetically sealed thin slice.This horizontal equipment of making among Figure 13,14 and 15 with the flow sealing band end can be US Patent 4,420, and that crosses described in 080 is the sort of, still, can certainly use various other machineries to finish same flow sealing.Equally, should be appreciated that the flow sealing can be a heated sealant, adhesive agent sealing, perhaps any other gas-tight and water-proff packing.Making end leak free device is set forth among Figure 15.This end flow sealing that has a cut-out by two in relative rotation quadrntnt 78 and 80 finish, the relative mating surface 82 that horizontal expansion is arranged on quadrntnt, these two quadrntnts have formed tortuous end seal bar 66, and has the edge of a knife 84 simultaneously, cut off the leak free end, formed thoughtful sealed package 91.Now, cigarette is protected, and neither can increase moisture content, also can not lose moisture content, up to according to the program described in Fig. 1-9 tongue piece being uncovered, exposes till the cigarette.

The end flow sealing band 66 of packing box 93 is folded into triangle 86.Carriage 56 has a surface portion 88, has the side 90 that dangles.In this certain embodiments, side 90 is to extend downwards with surface portion 88 rectangular modes.The surface portion of carriage 56 has the section 92 of a U-shaped, and when the end 36 of resealable is upwards drawn back, this piece section will form the outlet that can take cigarette.

When with common many Zhi Xiangyan of foil packages, the tinsel wrapper of standard has a chirring on bottom surface and folding side.Paillon foil this when folding up without any adhesive agent.When needs are opened the cigarette of metal-clad sheet packing, just draw back the front of the paillon foil that loosely wrapping up in from the wrapper of bottom surface, unpack, so that can take the cigarette of the inside.When this cigarette package of suction, the paillon foil after unclamping can not form any type of barrier layer that prevents cigarette increase moisture content or loss moisture content after covering cigarette.

As shown in figure 15, adopt this device of the present invention, horizontal sealing band 62 is folded on the itself at label 89 places, and result's packing just is square.The two ends 66 of packing also are folded on the itself also pleating, and the end of formation side, this end have pleating lap and square bottom 104 and top 106.This just provides very tempting complete packing for many Zhi Xiangyan, and this packing both can so intactly be used, and the packing box that also can be placed on an outside be the carboard shell is in sliding part and the barrel-contoured packing box.This finished product packing box 93 is fitly folded up foil material, has formed the packing box that is referred to as flexible packaging usually.

Figure 16 and 17 has shown the significant advantage of this cigarette pack device.As you know, many Zhi Xiangyan can be shaped as the shape of any needs, for example, in the applicant's Can.P. 2,085, those shapes described in 777.Can adapt to the shape that various cigarette is tied easily according to packing device of the present invention, because it has the ability that forms chirring at an easy rate on flow leak free thin slice.In addition, be also to be understood that flow leak free direction can also also can provide novel package shape and novel outlet shape along the length direction or the diagonal extension of packing box simultaneously in the horizontal expansion of packing box.

Above-mentioned cigarette bundle 54 can also make one one cigarette, 112 formation of its inside have the packing of wedge shape front portion.Carriage 56 has smooth surface 88, and its side 114 then stretches out with an angle from surface 88, with the shape of the wedge shape front portion that meets this a bundle cigarette 54.Then, this a bundle cigarette that is rolled in carriage 56 the insides is wired up with flow sealing sheet material, form complete packing box 116.As shown in figure 17, the packing box 116 bevelled edge 120 that a front 118 arranged and intersect with side 112.This packing box has tongue piece 110, and tongue piece is drawn back, and exposes cigarette, after the Linear Leaf Speedwell cigarette is released, can reseal this packing box.

Package design of the present invention can adapt to many different package shapes, and designed to opening the outlet with the enclose box.Not needing provides newly-designed machine for the packing box of redesign each time, and as long as provide different inner carriage just passable for the flow sealed package.If form vacuum in package interior, sheeting just can meet any predetermined shape at an easy rate so, thereby forms the more neat finished product packing of a kind of outward appearance.

Figure 18 and 19 has described a kind of device that can open the tongue piece of sealing outlet automatically.Shown a kind of Cigarette pack among the figure with standard slides and shell.Shell 130 surrounds sliding part 132, and a bundle cigarette 134 is contained in the sliding part the inside.At label 136 places an egress hole is arranged with the seal-packed a bundle cigarette of flow, this egress hole seals up with a tongue piece 138, and this piece tongue piece both had been bonded in 142 places, lower end of barrier material 140, also is bonded in its 144 places, upper end.One end of the attaching parts 146 that flexible fine rule is made is fixed on 148 places, inside of shell 130, and its other end then is fixed on 150 places, top of tongue piece 138.Barrier layer cuts at 152 and 154 places with mould, forms the section as egress hole 136.As shown in figure 19, when sliding part 132 along the direction of arrow 156 in shell 130 on when advancing, attaching parts 146 just is pulled away from top 144 to tongue piece 138, exposes outlet 136, release so just can tie Linear Leaf Speedwell cigarette 158 134 from cigarette.When closing above-mentioned packing box, just make tongue piece 138 get back to position shown in Figure 180, this moment, tongue piece 138 resealed egress hole 136.Then, that closes top renovates 160, then inner lip 162 just pleat finish resealing of packing box in the inside of shell 130.Opening automatically and resealing of this sealing arrangement guaranteed that this a bundle cigarette can keep fresh, avoided owing to the smoker forgets that again tongue piece being sealed up egress hole incurs loss freshness.

The flow sealing technology is applied on the packing of cigarette and has many beyond thought advantages and characteristics.Flow packages sealed box can be made the outside packing box on soft limit.Advertising message can be made in the interlayer of sheeting or barrier material in flow leak free process.The end of packing box and horizontal flow sealing band can fitly be folded up, and form pleasing finished product.The outlet of leading to cigarette can perhaps be opened the part of alternative resealable and finish with tearing the flow sealed package.The flow sealed package can form the vacuum packaging of cigarette.This is very favourable, because when opening the packing box of cigarette for the first time, the torrent that has one air shows the freshness of product to the user.This flow sealed package is easy to adapt to the different shape of cigarette bundle, and institute thinks that selling product provides greater flexibility.The flow sealed package is owing to having used the carriage that the cigarette bundle all is contained in the inside, so in the process of packing, no matter which kind of shape is the cigarette bundle be, can both work well.Flow sealed type technology can be used for containing the packing box that shell and sliding part are arranged as shown in Figure 2, and at this moment, sliding part can be opened by the top of shell, perhaps also can be by the side opening of shell.The flow sealing technology can also be used for the carriage of cigarette bundle, and at this moment, cigarette all is placed in each the independent cavity that forms on the carriage, US Patent 3,148 as mentioned above, described in 768.Independent tongue piece sealing band can be set for the cavity in each carriage.The flow sealing technology can also be used for also can forming the flow sealed package on soft limit many cigarette cases or cigarette bale packaging together.

Just as we all know, in the time of suction one cigarette package, the loss of moisture content can influence the taste of cigarette widely.Otherwise under very moist weather, cigarette has absorbed many moisture content, also can influence the fragrance and the outward appearance of cigarette.The flow sealed package has very big advantage aspect the egress hole of resealable providing, and it can form such opening in pleasing packing box.Several times can be opened and seal to this opening, and the sealing that still can keep opening.Opening seals to have with tongue piece and is the needed enough intensity of vacuum seal.When tongue piece covered again and have one air-flow to show the freshness of product, vacuum seal can make the smoker relieved to the freshness of product.Adopt vacuum packaging can also strengthen the rigidity of Cigarette pack when transportation, because in the flow sealing technology, be easy to obtain this specific character.

Though describe some preferred embodiments of the present invention in detail for above, but, those skilled in the art can understand, and under the prerequisite of included scope, can make various modification to these embodiment in not breaking away from design of the present invention and claims.

Claims

1. method of packing a bundle cigarette, said method comprises: folding around above-mentioned a bundle cigarette the barrier layer that piece layer is folded, and along the above-mentioned barrier layer after folding of above-mentioned direction sealing of tying up cigarette, and seal the above-mentioned barrier layer that folds with flow leak free method in above-mentioned each termination of tying up direction with the flow encapsulating method.

2. the method for claim 1 is characterized in that, above-mentioned barrier layer is provided with a leak free egress hole at the top end that folds into above-mentioned cigarette bundle.

3. method as claimed in claim 2 is characterized in that above-mentioned egress hole is cut on above-mentioned barrier layer with mould, and above-mentioned egress hole uses a tongue piece that is bonded on the above-mentioned egress hole with pressure sensitive adhesives to seal up.

4. method as claimed in claim 3 is characterized in that, above-mentioned tongue piece is bonded on the barrier material of the above-mentioned egress hole of formation that cuts with mould.

5. method as claimed in claim 4 is characterized in that, above-mentioned egress hole and bonded assembly tongue piece are before above-mentioned barrier layer is folded around above-mentioned cigarette bundle, form on above-mentioned barrier layer.

6. the method for claim 1, it is characterized in that, above-mentioned barrier layer is folding around above-mentioned cigarette bundle, above-mentioned flow sealing seam is extended along the Width of above-mentioned cigarette bundle, vertical with the length direction of cigarette in this bundle cigarette, above-mentioned flow seals the position of seam in the centre of above-mentioned cigarette bundle top and bottom, each side that above-mentioned end flow sealing seam is then tied along above-mentioned cigarette.

7. method as claimed in claim 5, it is characterized in that above-mentioned barrier layer is continuous, above-mentioned cigarette is in bundled in the carriage that is shaped in advance, form needed cigarette bundle shape, each bundle cigarette all is placed on above preformed egress hole on the continuous barrier layer of this piece.

8. method as claimed in claim 7 is characterized in that, above-mentioned barrier layer comprises that one deck can carry out thermosealed cladding material, and above-mentioned barrier layer carries out heated sealant along above-mentioned flow sealing seam.

9. method as claimed in claim 3, it is characterized in that, the part of above-mentioned egress hole cuts out on above-mentioned barrier layer with mould, profile of section formation for egress hole, with adhesive agent above-mentioned tongue piece is covered in above-mentioned egress hole section then, and be fixed on the above-mentioned barrier layer round above-mentioned section, when drawing back above-mentioned tongue piece for the first time, above-mentioned adhesive agent has enough intensity above-mentioned section is drawn back from above-mentioned barrier layer.

10. the method for claim 1 is characterized in that, above-mentioned cigarette is packed under warm environment.

11. the method for claim 1 is characterized in that, above-mentioned cigarette is packed under vacuum state.

12. the method for claim 1 is characterized in that, before above-mentioned barrier layer carries out the flow sealing, a kind of spices is added in the above-mentioned folding barrier layer.

13. method as claimed in claim 3 is characterized in that, above-mentioned pressure sensitive adhesives is a resealable.

14. barrier layer packing of packing a bundle cigarette, above-mentioned barrier layer has a flow sealing seam vertical with cigarette length, with each flow sealing seam of each side of tying, and be used to open above-mentioned barrier layer, form the device of a cigarette egress hole along above-mentioned cigarette.

15. barrier layer packing as claimed in claim 14, it is characterized in that, the above-mentioned device that is used to open barrier layer comprises a tongue piece in the opening section that is fixed on above-mentioned barrier layer with adhesive agent, when this tongue piece when above-mentioned barrier layer tears it down, above-mentioned tongue piece draws back above-mentioned section from above-mentioned opening.

16. barrier layer packing as claimed in claim 15 is characterized in that, above-mentioned opening is the section on the barrier layer at above-mentioned cigarette bundle top.

17. barrier layer packing as claimed in claim 16, it is characterized in that, above-mentioned barrier layer packing are contained in the outside Cigarette pack, when opening and closing the said external Cigarette pack, on the said external Cigarette pack, have and automatically to draw back above-mentioned tongue piece and the osed top device.

18. barrier layer packing as claimed in claim 17 is characterized in that, above-mentioned adhesive agent is the pressure sensitive adhesives of resealable.

19. barrier layer packing as claimed in claim 14 is characterized in that above-mentioned barrier layer is the stacking material of multilayer, have one deck moisture content barrier layer and one deck fragrance barrier layer at least.

20. barrier layer packing as claimed in claim 14 is characterized in that, the transversal surface of above-mentioned this bundle cigarette is irregularly shaped, and above-mentioned flow leak free barrier layer and above-mentioned irregularly shaped conforming to.

21. barrier layer packing as claimed in claim 19 is characterized in that above-mentioned barrier layer comprises one deck gas-barrier layer, above-mentioned barrier layer is at the vacuum state lower seal.

22. barrier layer packing as claimed in claim 16, it is characterized in that, the part of above-mentioned opening is cut with mould, above-mentioned tongue piece is fixed on the above-mentioned barrier layer with the mould partial cut-out, and when opening above-mentioned packing box for the first time, have enough cohesive forces, above-mentioned with mould cut partially torn.