CN102858641A

CN102858641A - Method for sealing packages

Info

Publication number: CN102858641A
Application number: CN2011800171885A
Authority: CN
Inventors: J.L.托马斯; D.M.恩佩
Original assignee: Procter and Gamble Ltd
Current assignee: Procter and Gamble Ltd; Procter and Gamble Co
Priority date: 2010-04-01
Filing date: 2011-03-24
Publication date: 2013-01-02
Also published as: WO2011123318A1; US20110239596A1; EP2552787A1; BR112012024700A2

Abstract

A method of sealing packages having at least one pair of opposing flaps that are shortened or "shied." with tape. The tape comprises two or more adhesive strips and a non-adhesive area positioned there between having a line of weakness.

Description

Be used for seal-packed method

Invention field

The present invention relates to a kind of the sealing with band and have the method for packing that shortens fin, described band has adhesive strip and comprises the non-adhesive region of one or more weak line (a line of weakness).

Background of invention

In order to be sent to another position from a position, usually product is placed in the packing.Depend on application, each packing can be held single product or a plurality of product.All easily obtained in market although permit eurypalynous packing and packing, a kind of in the modal packing is corrugated cardboard container or packing.

Be packaged as top and two pairs of fins on the bottom (being commonly referred to main to fin and inferior to fin) of essentially rectangular and vertical side that comprise four adjacency and packing.In these fins each is connected in the vertical side, so that when paired minor flap and time fin towards each other and when folding towards the center of packing, at least join near the center of package top or bottom in the edge of minor flap, thereby effectively produce top and bottom level surface and the closed package of packing.Fin on the packing brings sealing fixing by glue or by pressure-sensitive adhesion usually.Band is often used with " C clamp " configuration.

Why so the C clamp name is because when band is applied to packing, is the shape of letter " C " along the band cross-sectional plane of band length.Specifically, the C clamp of band is the adhesive strip of following continuous length, the adhesive strip of described continuous length is administered on the part of a vertical side of packing, across one center in the horizontal surface of packing adjacent minor flap is sealed and finally is sealed on the part of relative vertical side of packing.In addition, the band that is used for C clamp is normally enough wide in order to use along the fin of adjacency, so that the top of packing and the outermost on the bottom or minor flap all seal by single band sheet two fins.When coming closed and sealed package with the C clamp of adhesive strip, there is not basic gap and allows pollutants to arrive the one or more products that are encapsulated in the packing.

That the people who unpacks usually need to penetrate band also and then touch with sharp tool and pack interior article with the problem that is associated of packing with the C clamp sealing.In addition, compare their product is desired with maker or supplier, packing can provide more protection.In addition; because used raw MAT'L (for example in the price of packing and the process of making packing; corrugated cardboard) amount is relevant, does not therefore need their product is done the user of complete protection like this for those, and it may be unnecessary high using the cost of packing.

In response to these Considerations, the builders of packing have produced the packing of Second Type, it has a shortening or " shrinking back " in pairs minor flap and time fin, and when packing was in closed state, described minor flap and time fin were not joined each other.On the contrary, when packaging closures, main to fin with inferiorly all have the gap between to fin.The packing of the type is used basically less raw MAT'L, and this has correspondingly reduced the cost of Production and Packaging and finally reduced the quantity of refuse that produces when processing packing.

The method that a kind of alternative being used for seals the packing with the fin of shrinking back is that to using the C clamp of two package encapsulation bands, one of them C clamp is applied on this each right fin to minor flap.For example, be known that two band C clampes are used in the relative both sides in the gap of two independent band sources between minor flap, each band source is installed in and is arranged on independently executing on the package encapsulation machine and takes the lead.Yet owing to these two band C clampes are not to be applied to cover the gap of shrinking back between the fin, the product that therefore is encapsulated in the packing can not be protected and the not impact of contaminated thing.

Another kind of alternative seal-packed method is, to using following band, described band has horizontal adhesive region and is positioned at non-adhesive region between them to minor flap.Yet, to compare with the standard band that has across the adhesives of whole width, this band is not easy to be removed, because band flushes with vertical surface of package, forces the staff to use sharp tool to unpack, and this may damage the product that is contained in wherein.In some form, placed inserted sheet in the non-adhesive region of band, but inserted sheet can not guarantee to separate band along its length, because inserted sheet may be torn or be trapped among in the adhesive region one.

Therefore, need a kind of for the production of easily opening seal-packed method, described packing have by shorten or " shrinking back " paired gap of forming of minor flap and time fin.

Summary of the invention

The invention provides a kind of method that has the packing that shortens fin for sealing.The method may further comprise the steps: the package encapsulation machine with packing guide path and rotary punching machine is provided; The packing that comprises two relative vertical sides is provided, and each side is connected to towards the independence that is folded each other and relative fin to provide the gap between their nearest edge; Provide band from the band source, described band has non-adhesive region and two or more adhesive strips; Move packing so that packing contact band and from band source stretching band along the packing guide path; The stretching band is so that band moves through rotary punching machine; When being stretched by rotary punching machine, band in band, forms weak line; And use band with adhesive strip at least a portion of a pair of relative fin, described adhesive strip adheres at least a portion in each fin and non-sticky partial coverage gap.

The invention provides a kind of method that has the packing that shortens fin for sealing.The method may further comprise the steps: provide the band with two or more adhesive strips and non-adhesive region from the band source, wherein non-adhesive region has width; Package encapsulation machine with packing guide path and rotary punching machine is provided, and rotary punching machine comprises punch carrier and die block, and the width that die block has is equal to or less than the width of band non-adhesive region; Packing is provided, and wherein this packing comprises two relative vertical sides, and each side is connected to towards the independence that is folded each other and relative fin to provide the gap between their nearest edge; Move packing so that packing contact band and from band source stretching band along the packing guide path; The stretching band is so that band moves through rotary punching machine; When being stretched through rotary punching machine, band in band, forms weak line; And use band with adhesive strip at least a portion of a pair of relative fin, described adhesive strip adheres at least a portion in each fin and non-sticky partial coverage gap.

The accompanying drawing summary

Fig. 1 is the fragmentary, perspective view that can be used for package encapsulation machine of the present invention.

Fig. 2 is the transparent view that can be used for packing of the present invention.

Fig. 3 is the transparent view that can be used for packing of the present invention.

Fig. 4 is the transparent view that can be used for band of the present invention.

Fig. 5 is the section-drawing that can be used for band of the present invention.

Fig. 6 is the section-drawing that can be used for band of the present invention.

Fig. 7 is the front elevation that can be used for rotary punching machine of the present invention.

Fig. 8 is the cross-sectional plane that intercepts in the plane of the line 8-8 of Fig. 7.

Fig. 9 is the front elevation that can be used for rotary punching machine of the present invention.

Figure 10 is the front elevation that can be used for rotary punching machine of the present invention.

Figure 11 is the front elevation that can be used for rotary punching machine of the present invention.

Figure 12 is the transparent view that can be used for packing of the present invention.

Figure 13 is the transparent view that can be used for packing of the present invention.

Detailed Description Of The Invention

The present invention relates to a kind of with the seal-packed method of band.That these packings have at least one pair of shortening or " shrinking back " relative fin.For sealed package and the gap that produces of the fin that shortens of serving as reasons cover panel is provided, band is administered to the fin of shortening; Wherein band comprises two or more adhesive strips and is positioned at non-adhesive region between them.The non-adhesive region of band comprises at least one weak line.The method has used the band source such as the band roller, and band is administered to packing.After band leaves the band source but before band is applied to packing, in band, form weak line.

Fig. 1 shows be used to the embodiment of implementing method of the present invention, comprises for package encapsulation machine 50 from band to packing that use.This machine component comprises for the band source 52 of the supply band that will distribute and is used for using executing of band to packing takes the lead 54, and described execute take the lead supported with respect to pedestal 56.As shown in the figure, execute the 54 support band sources 52 of taking the lead.As used herein, term " band " comprises pressure sensitive adhesive package encapsulation band, such as the package encapsulation band.Yet, comprised other web material that can be applied to packing.Band comprises backing layer, and described backing layer has the adhesive phase of a side that is coated to backing layer, and this has formed have two surfaces band of (downside tacky surfaces and top non-sticky surface).

Package encapsulation machine 50 comprises pedestal 56 and the upper supporting piece 57 of locating by pillar mechanism 58 with respect to pedestal 56.Upper supporting piece 57 can be connected with pedestal 56 vertical adjustable grounds by pillar mechanism 58, and described pillar mechanism is vertical adjustable to adapt to the packing of differing heights routinely.Upper supporting piece 57 supports to execute takes the lead 54, and band load-carrying element 60 can be connected to described executing and take the lead.Band load-carrying element 60 also supports band source 52, and rotatably install by wheel hub 62 in described band source, as known in the art.

As shown in Figure 1, the packing guide path is limited along pedestal 56 by conveyer 64 and 66, and described conveyer makes the mobile roller 68 that comprises bed 70 and the process of skimming over of packing execute and take the lead 54, (more particularly) with contact execute take the lead 54 use roller 71 and polishing roll 72.The operation of this type of connecting gear is well known in the art, and imagination, can use at present other conveyer known or that develop (no matter being automatic or manual).

The device that is used for limiting web path also is provided, and described device comprises for the rotary punching machine 73 that forms one or more weak line at band, and it is installed in to execute and takes the lead in 54, is used for the guiding band and takes the lead 54 and arrive and use roller 71 from band source 52 by executing.Be used for using band to use connection and the operating mode that roller 71 is connected with polishing roll be that people know.Execute and take the lead 54 to comprise rotary punching machine 73, described rotary punching machine limits web path with using roller 71, and it also helps the tension force control of band.In Fig. 1, execute and take the lead 54 directly to be positioned at packing guide path top to be used for seal-packed top, yet another is executed and takes the lead usually to provide in bed 70 for 54 (comprising that all assemblies of having described are such as rotary punching machine 73), also band is administered to the bottom of packing.In addition, the present invention also has been susceptible to and has executed other various configurations and the position of taking the lead with roller, takes the lead to be positioned at packing guide path top such as a plurality of executing, and packs the guide path below, or packs the above and below of guide path.

Package encapsulation machine 50 can be used to seal foursquare packing, but as shown in Figure 2, packing 10 can be essentially rectangular and vertical side 11 that comprise four adjacency, 12,13,14 and pack and be commonly referred to minor flap to 15A on 10 top and the bottom, 15B and time fin be to 16A, two pairs of fins of 16B.These

fins

15A, 15B, 16A, 16B are connected to vertical side 11 separately, 12, in 13,14 one is so that as paired

minor flap

15A, 15B and

time fin

16A, 16B is derived from the minor flap 15A of top or the bottom of packing 10 towards each other and when folding towards the center of packing 10, and 15B (when folding downwards) produces top and bottom level surface and the closed package 10 of packing 10 effectively.

As shown in Figure 3, can 10 be designed and be manufactured into so that as paired fin 15A with packing of sealing of method of the present invention, 15B, 16A, when 16B court is folded each other, at

minor flap

15A, 15B to relative fin 16A, provides basic gap 20 between the nearest edge separately of 16B with inferior wittingly.Alternatively, also can say when packing 10 is in the close position, paired

fin

15A, 15B, 16A, 16B " are ashamed of " contacting with each other.Therefore compare with the fin of other packing,

fin

15A, 15B, 16A, 16B are considered to " shortening " or " shrinking back ".The present invention includes the packing of the fin with shortening, together with the packing of the right combination of the fin that use to shorten pair and the fin of not shortening.

For the top (proceeding to Fig. 3 from Fig. 2) of closed package, for example, usually first pair of fin (described time to

fin

16A, 16B) court is folded each other.Then, second pair of fin (main to fin 15A, 15B) court is folded each other.In certain embodiments, main top and the bottom level surface that fin is consisted of effectively packing.Although above described typical packing, also be susceptible in conjunction with the present invention and use other packing configuration, such as having greater or less than the packing of four sides and on the top of packing and bottom, only have the packing of a pair of fin, etc.

Packing can be any suitable size or shape.In certain embodiments, this packing can be made by the material of deflection not, for example, card board, cardboard, carton board, wood based panel, veneer sheet, SBS, metal, plastics, paper wood, card stock, fabric, pottery, poly-mer, natural fiber or syntheticfibres, fleece, net material, screen cloth, timber, composite material, their compound or combination or any other suitable material.Alternatively or in addition, packing also can be made by flexible material, such as, the polypropylene of the blown film in the blend of Low Density Polyethylene and linear low density polyethylene or casting films, metallocene, ethane-acetic acid ethyenyl ester, sarin, polyethylene terephthalate, biax orientation, nylon, their combination or any other suitable material.

Fig. 4 shows band source 52, and it comprises that in certain embodiments hoop centers on the band 30 on the outside face of cylindrical core 42.Band 30 comprises spaced vertical

adhesive strip

31A and 31B, wherein in certain embodiments, among adhesive strip 31A and the 31B each is positioned on the relative two edges of strip width 32, and between

adhesive strip

31A and 31B and the zone that is adjacent to them be non-adhesive region 33, described non-adhesive region comprises the one or more weak line 40 that extends along the length 36 of band 30.In certain embodiments, adhesive strip can have about 2cm to the width of about 5cm.In certain embodiments, non-adhesive region can have about 2cm to the width of about 8cm.In certain embodiments, band can have about 5cm to the width of about 18cm; In other embodiments, band can have about 8cm to the width of about 16cm.The width of each among adhesive strip 31A and the 31B can be identical, or can have difference between the width of the width of adhesive strip 31A and adhesive strip 31B.

Used band can have one or more weak line in the method for the present invention.Weak line can be positioned at any suitable position on the band.As used herein, term " weak line " refers to the one or more weakness by any patterned arrangement, and what described pattern was suitable is beneficial to by providing tearing of reduction a little to separate band in band.This pattern can extend in one or more directions, and for example, that this pattern can be is straight, curved, angled, crooked, fitfull or their combination.One or more in the described single weakness can be overlapping to form weak line.In addition or alternatively, one or more in the described single weakness can also be spaced apart from each other to form weak line.As used herein, term " weakness " refers to the zone of band, and wherein the thickness of band is basically less than the thickness of the band around this zone.In certain embodiments, for example weak about 50% a little less than the comparable peripheral region of single weakness, weak about 75%, or weak about 100%.Weakness can any suitable mode form, such as passing through depression or perforation.

Term " depression " refers to its thickness that has less than the thickness of band on every side but greater than zero weakness.Depression can both extend to the band from the tacky surfaces of band or non-sticky surface or they.In certain embodiments, when forming weak line, single depression can overlap each other, in order to produce by the substantially continuous weak line that is recessed to form, such as line or groove.In addition, term " perforation " refers to one or more weakness, and at least a portion that wherein forms the band zone of weakness can have approximately zero thickness.

In certain embodiments, band can comprise across the width of band spaced more than two adhesive strip, more than one non-adhesive region, or they both.For example, band can comprise the non-adhesive region of the central area that is arranged in band, a vertical adhesive strip and two additional vertical non-adhesive strips on each side of non-adhesive region, and each additional vertical non-adhesive strip is arranged in of going up and being adjacent to vertical adhesive strip of strip edge.The present invention also has been susceptible to the contiguous adhesive strip that replaces and other combination of non-adhesive strip.

Band used among the present invention can comprise backing layer, and wherein adhesive phase is coated to a side of backing layer.Backing layer can comprise paper wood, film or their combination of paper wood, fleece reinforcement.If backing layer comprises film, then the lining tunic can comprise the band backing layer in certain embodiments, and described band backing layer comprises one or more in following: copolymer and the ethene of polypropylene (BOPP), polyvinylchloride (PVC), propylene and the ethene of polyethylene, polypropylene, polyester (such as polyethylene terephthalate (PET)), biax orientation and have the copolymer of the alkene of four or more carbon atoms.

The example that can be used for the adhesives of band of the present invention comprises such as following composition: polyvinylether; Rubber such as the natural rubber, polyisoprene and the poly-butadiene that comprise diene; Styrene butadiene rubbers; Polychlorobutadiene; Butyl rubber; Butadiene-acrylonitrile polymer; Thermoplastic elastomeric block copolymers such as styrene-isoprene (SI) and styrene-isoprene-phenylethene (SIS) periodic copolymer, styrene-butadiene (SB) and s-B-S poly-mer (SBS) and ethylene/propene and ethene-butylene-diene polymer such as styrene-ethylene/propylene-styrene (SEPS) and styrene-ethylene/butylene-styrene (SEBS); Poly alpha olefin; Amorphous poly alkene; Organosilicon; Copolymer such as the ethane-acetic acid ethyenyl ester, ethyl propylene acetoacetic ester and the EMA that comprise ethene; Polyurethane; Polyamide; Epoxide; Polyvinylpyrrolidone and vinylpyrrolidone copolymer; Polyester; And their compound.Coming to give concrete property to adhesives with the multiple composition in these compositions may require to be undertaken crosslinked or curing by method well known in the art.In addition, adhesives also can comprise additive, such as tackifier, plasticizer, antioxidant, stabilizer, curing agent and solvent.

In addition, in certain embodiments, also will hang down viscosity top non-sticky surface and be arranged on another side of backing layer, with box lunch from the band roller during unwinding, the easier separation of band.This type coating and inorganic agent are that people know, and if they be applicable to desired band structure in other side, then can any coating used according to the invention and inorganic agent.

Fig. 5 (section-drawing that it intercepts for the hatching 5-5 from Fig. 4) shows in certain embodiments, be used for band 30 of the present invention and comprise backing layer 35, described backing layer has two adhesive strip 31A that cover along the relative lateral parts of the downside tacky surfaces of backing layer 35,31B.Backing layer 35 can be paper wood, film or other known web material that is suitable for use as backing layer.In addition,

adhesive strip

31A, 31B can be equal wide, and can be viscosity without forms such as base material adhesive tape, hot-melt adhesives.The strippable coating technology is that people know and is applicable to prepare adhesive strip.Gained be following band structure, wherein the manufacture of non-sticky zone line only is adhesives not to be coated on this zone of band.In certain embodiments, adhesive strip can have the width that does not wait.

Fig. 6 shows another embodiment that can be used in band 30 of the present invention with the view that is similar to Fig. 5.In this embodiment, band 30 comprises the backing layer 35 that is coated with adhesive phase 37 across its width.The central area of band 30 also is coated with weakens layer 38, describedly weakens that layer reduces basically or the bond strength of the central area of " weakening " band 30 adhesive phases 37, thereby forms non-adhesive region 33.Be applicable to this and weaken layer material of 38 and comprise fleece or sheet material, such as film, paper wood, paillon foil or inorganic agent, such as being administered to adhesives so that it becomes inviscid powder.

In certain embodiments, such as Fig. 4, shown in 5 and 6, band of the present invention comprises the transparent band material that allows to observe the product that is encapsulated in the packing.Yet, in some cases, allow light to enter into packing or the product that allows to observe packing is worthless; In these cases, can use opaque band material.Transparent for transparent band material is become, backing layer and the coating that is administered on the backing layer all are required to be transparent.Yet opaque for opaque band material is become, only backing layer or of being administered in the coating on the lining band are required to be opaque.

Now with reference to Fig. 1 the process that the method according to this invention is administered to band by package encapsulation machine 50 packing is described.When initial, will comprise that the band source 52 of band 30 rotatably is installed on the wheel hub 62 of band load-carrying element 60, as shown in Figure 1.Make band 30 take the lead 54 to arrive and use roller 71 by executing along web path to allow that band is administered to mode on the packing.In certain embodiments, use roller assembly set 71 and comprise at least and band 30 the same wide single administration rollers, and web path is defined as so that the whole width of band 30 will contact with this single administration roller.Comprise two rollers of using of being arranged to parallel type if use roller assembly set 71, then these to use in the roller each axially spaced from one another with corresponding to the adhesive strip 31A of band 30 and the position of 31B.

As shown in Figure 1, on the direction of arrow A, will have the packing that shortens fin and be provided to package encapsulation machine 50, wherein flap folded down.Execute and take the lead 54 band 30 guided to from band source 52 to use roller 71, the described roller of using is worn the adhesive side of band 30 subsequently to front vertical surperficial 11 of packing 10.Use before roller 71 is administered to packing 10 with band 30 in use, be positioned at and execute the rotary punching machines 73 of taking the lead in 54 and provide one or more weak line 40 for band 10.The example that can be used for rotary punching machine 73 of the present invention is illustrated among Fig. 7, and comprise and be installed in parallel horizontal shaft 86, one or more punch carriers 84 on 88 and one or more rotary die block 82, described horizontal shaft is rotatably installed in to execute takes the lead 54 substantially parallel vertical side 54A, between the 54B.Die head 94 is installed on the die block 82 around die block 82 with uniform interval.Equally, drift 96 is installed in the punch carrier 84 around punch carrier 84 with uniform interval, and described interval is corresponding to the spacing between the die head 94 on the die block 82.Drift 96 can be any suitable shape so that desired weak line 40 to be provided, and for example drift 96 can be taper shape, cylindrical, taper (polygon pedestal and three or more leg-of-mutton faces of joining at intersection point) or their combination.

As shown in Figure 8, punch carrier 84 is rotatably installed on the parallel

horizontal shaft

86,88 with die block 82.Band 30 is stretched by rotary punching machine 73 by the motion of packing, and band 30 makes punch carrier 84 and die block 82 in the opposite direction around they corresponding parallel,

horizontal axle

86,88 rotations.Die block 82 and punch carrier 84 are rotated in the opposite direction, thus each drift 96 off and on die head 94 in one align.Depend on the adjusting situation of rotary punching machine 73 and the shape of drift 36, drift 36 can cooperate to penetrate the band 30 of process between die block 82 and punch carrier 84 or form therein depression with die head 34.The number that can be depending on perforation desired in the weak line or depression is adjusted the spacing of drift and die head.Equally, also the degree of depth of the height of capable of regulating drift and die head is to produce desired perforation or depression at weak line.

Although shown in Fig. 7 is die block and the punch carrier with single drift and die head, other embodiment also is possible, and for example drift and die head can be arranged to one or more patterns such as the pattern of similar wave or interlocking zip type.In addition, in certain embodiments, in order to produce the band that has more than one weak line, can there be die block 82 or punch carrier 84 more than one, as shown in Figure 9.In addition, as shown in figure 10, punch carrier 84 can have the drift 96 more than a group, and die block 82 can have the die head 94 more than a group.

When using certain material when having the band of adhesive component, one of difficulty is that adhesives can adhere on the machine of using this material, and described machine is the package encapsulation machine in the present invention.The adhesives of one or more assemblies of contact packing sealer can have multiple negative effect, is adhered on these machine components and is accumulated in wherein or adhesives is basically reduced or removes from band such as adhesives.In the present invention, as shown in Figure 1, shift to pass in the way of using roller 71 to execute at it when band and take the lead 54 the time, tacky surfaces can touch die block 82.Yet in certain embodiments, as shown in figure 11, the width 83 of die block 82 is substantially equal to or less than the width 39 of the non-adhesive region 33 of band 30.Be similar to the width of the non-adhesive region 33 of band 30 by the width 83 that makes die block 82, minimize the adhesive strip 31A of band 30, contact between 31B and the die block 82, this has reduced to be accumulated in the amount of the adhesives on the die block 82, be used for safeguarding and standing time of cleaning thereby reduced, and also owing to reduced adhesives loss and produced and have a best adhering band.

Along with conveyer 64 and 66 moves to packing 10 on the bed 70 along the packing guide path, the front vertical surperficial 11 contact bands 30 of packing 10.Using subsequently roller 71 usefulness all adheres to leading edge top that the 10 required power of packing make band 30 with the adhesive strip 31A of

band

30 and 31B and presses and pack 10.When packing 10 continuation are moved along the packing guide path, band 30 continues to be executed takes the lead 54 52 to stretch out from the band source, and uses roller 71 packaged 10 and executing the support guide path of taking the lead in 54 and vertically along front vertical surperficial 11 upwards drivings of over water plane surfaces towards packing 10 of packing 10 along it.Along with band 30 is stretched, it passes rotary punching machine 73, and this forms one or more weak line 40 at band 30.In addition, using after roller 71 used band 30, the band 30 that polishing roll 72 rollings are newly used is to level to

adhesive strip

31A and 31B on the surface of packing 10, described polishing roll can be pivotably connected to execute takes the lead 54 and be interconnected to by bindiny mechanism and use the roller strut member, as routine is known.

Band 30 usually be applied to packing 10 front vertical surperficial 11 only a part.Be applied to front vertical surperficial 11 the part of packing 10 and use after roller 71 moved to the turning of front vertical surperficial 11 and over water plane surface of packing 10 at band 30, band 30 is applied to the over water plane surface of packing 10 subsequently by using roller 71.After the part on vertical surface 13, conventional cutter sweep can cut off band after band 30 has been applied to the whole over water plane surface of packing 10 and has been administered to.When using band in this mode, say that usually band " C clamp " has been applied to packing, be similar to letter " C " because be applied to the shape of the band of packing.In some other embodiment, after band 30 had been applied at least a portion of over water plane surface of packing 10, conventional cutter sweep can cut off band.If band 30 was cut off be applied to the whole length of over water plane surface of packing 10 at band before, say usually that then band " L shaped folder " has been applied to packing, is similar to capital letter " L " because be applied to the shape of the band of packing.

Although what above description related to specifically is front vertical surface, over water plane surface and the rear vertical surface that in order band is administered to packing, but be to be understood that, this description also can be applicable to following operation: wherein band be applied to packing other vertically the surface, be administered to bottom level surface of packing, or wherein band is applied by the order different from said sequence.In addition, also be susceptible to, the package encapsulation machine can be used the combination of L shaped folder, C clamp, L shaped folder and C clamp, or the straight section of band is administered on only surface of packing, and a described surface is made of single section or is made of folding fin.Also be susceptible to, the band operation can occur repeatedly to execute on identical packing simultaneously.

In addition, should be pointed out that and in contrast to the one or more weak line that in seal process, forms in the band of the present invention; Coming seal-packed method may cause band to be applied at it with the band with line a little less than the preform separates during packing.For example, if the band source is the band roller, then when band removed from this roller, band may separate, and was stayed the band of this roller on second half so that the band on the only side of this roller can pull and remained on original position.By after band is broken away from roller, forming weak line, eliminate or reduce the possibility that band is torn, but still provide the band with weak line for packing.

Referring now to Figure 12,, shows the method according to this invention with 10 the transparent view packed of the C clamp of band 30 sealing.In this embodiment, packing 10 as shown in Figure 3 comprises the minor flap 15A of a pair of shortening, 15B, is restricted to this a pair of minor flap 15A, the gap 20 of the distance between the nearest edge of 15B and have the band 30 of weak line 40.As the band 30 that is administered to packing 10 comprises non-adhesive region 33, this regional width can be substantially with between a pair of minor flap 15A, the width in the gap 20 between the 15B equates; So that the adhesive strip 31A on the band 30, the distance between the nearest edge of 31B is substantially equal to this a pair of minor flap 15A, the distance between the nearest edge of 15B.In addition, when band 30 was adhered to packing 10, the longitudinal centerline of band 30 can be corresponding to this a pair of minor flap 15A, the line of centers in the gap between the 15B.Therefore, when band 30 is applied to packing 10,

adhesive strip

31A, 31B is being adhered to this a pair of minor flap 15A such as upper/lower positions, 15B: adhesive strip 31A wherein, the nearest edge of 31B corresponding to or almost corresponding to this a pair of minor flap 15A, the nearest edge of 15B, the products of therefore packing in 10 can not be exposed to adhesives and therefore can not adhere to band 30.Yet in some other embodiment, band 30 may be positioned to and be offset, so that between this a pair of minor flap 15A, the line of centers in the gap 20 between the 15B does not correspond to the longitudinal centerline of band 30.In other embodiments, band 30 can be applied to has the packing 10 that shortens fin, adhesive strip 31A wherein, and the distance between the 31B is greater than or less than this a pair of minor flap 15A, the gap 20 between the nearest edge of 15B.If adhesive strip 31A, gap between the nearest edge of 31B is less than this a pair of minor flap 15A, gap 20 between the nearest edge of 15B, adhesive strip 31A then, the part of 31B may be adhered to this a pair of

minor flap

15A, 15B also adheres to a pair of fin 16A of packing 10, the expose portion of 16B.

Used band can have one or more weak line among the present invention.Weak line can be positioned at any suitable position on the band.In certain embodiments, as shown in figure 12, weak line 40 is positioned in the non-adhesive region 33 of band, and the length 36 along band 30 is extended, its in this case from vertical side 11 begin, across

minor flap

15A, 15B advances continuously and is downward to relative vertical side 13.In addition, in certain embodiments, as shown in figure 12, weak line 40 can be centrally located in the band 30, with in two edges of band 30 any at a distance of the distance that basically equates.In addition, as shown in figure 12, weak line 40 also can extend in the direction at one or two edge that is arranged essentially parallel to band 30.Although weak line 40 is shown as straight line in Figure 12, weak line can arrange by any suitable pattern.

Figure 13 shows the method according to this invention and packs 10 transparent view with another of the C clamp of band 30 sealing.Packing in this embodiment has and comprises two weak line 40A, the band 30 of 40B, and described weak line extends along the length 36 of band 30 basically in parallel with each other, and described weak line can be and uses Fig. 9 and embodiment of the present invention shown in Figure 10 to form.Substantially parallel

weak line

40A, 40B can form the band system that is easy to open, and the user can be positioned at substantially parallel weak line 40A by the edge separation along band 30 at first, the section of the band 41 between the 40B and touch inside.The inserted sheet (described inserted sheet does not have guided bone to prevent inserted sheet fracture before band separates fully along its length or basically separates) that is different from prior art, by substantially parallel weak line 40A, the bar opening that 40B forms can be subject to substantially parallel

weak line

40A, and 40B is along the guiding of the length 36 of band 30.In addition, thisly also make the user need not their finger is placed between band downside and the packing with opening system to tear weak line; Thereby allow the user to tear weak line from the raised position of packing top, thereby the convenience that increases leverage and open.

Dimension disclosed herein and value should not be understood to be strictly limited to the exact value of quoting.On the contrary, except as otherwise noted, each such dimension is intended to represent near the scope of the same function described value and this value.For example, disclosed dimension " 40mm " is intended to expression " about 40mm ".

Unless be not included in clearly interior or in other words to some extent restriction, every piece of document that this paper quotes comprises any cross reference or relevant patent or patent application, all hereby is incorporated herein by reference in full.The quoting of any document is not it as disclosed herein or be subjected to the prior art of any invention of claims protection; perhaps its individually or with any combination of any other list of references, perhaps with reference to, propose, suggestion or disclose the approval of any this type of invention.In addition, when any implication of term in any implication of term among the present invention or definition and the file that is incorporated herein by reference or when defining contradiction, should obey implication or the definition of giving in the present invention this term.

Although illustrated and described the present invention with specific embodiments, those be it will be apparent to those skilled in the art that in the situation that does not break away from the spirit and scope of the invention, can make many other change and modification.Therefore, enclose and be intended to contain all these changes and modification in the scope of the invention in claims.

Claims

1. one kind is used for the method that sealing has the packing that shortens fin, said method comprising the steps of:

A) provide the package encapsulation machine, described package encapsulation facility have packing guide path and rotary punching machine;

B) provide packing, described packing comprises two relative vertical sides, and each side is connected to independent and relative fin, and described fin is towards being folded each other to provide the gap between their nearest edge;

C) provide band from the band source, described band has non-adhesive region and two or more adhesive strips;

D) move described packing along described packing guide path, so that described packing contacts described band and the described band that stretches from described band source;

E) the described band that stretches is so that described band moves through described rotary punching machine;

F) when being stretched by described rotary punching machine, described band in described band, forms weak line; And

G) described band is administered at least a portion of described a pair of relative fin, wherein adhesive strip is adhered to each fin, and at least a portion in the described gap of described non-sticky partial coverage.

2. the method for claim 1, wherein said band is used with using roller.

3. method as claimed in claim 1 or 2, wherein said weak line forms with rotary punching machine, described rotary punching machine comprises punch carrier and die block, preferably wherein said weak line is with comprising the punch carrier of one or more drifts and comprising that the die block of one or more die heads forms, more preferably wherein said weak line forms with one or more drifts, and described drift has and is at least a shape in following: conical, cylindrical or taper.

4. such as each described method in the claims 1 to 3, wherein said punch carrier and die block form weak line by producing at least a in perforation or the depression.

5. such as each described method in the claim 1 to 4, wherein form two or more weak lines.

6. method as claimed in claim 5, wherein said two or more weak lines form with the rotary punching machine that comprises two or more punch carriers and two or more die blocks.

7. method as claimed in claim 5, wherein said two or more weak lines form with the rotary punching machine with two or more groups drift and die block with two or more groups die head.

8. such as each described method in the claim 5 to 7, wherein two or more weak lines are formed parallel to each other basically.