US20030126838A1 - Methods of making slide-zippered reclosable packages on horizontal form-fill-seal-machines - Google Patents

Abstract

Methods of making slide-zippered reclosable packages are provided. In one embodiment, a pair of opposing film extensions are provided on each package between which a zipper and slider are attached. In another embodiment, sliders are inserted on to zippered packages output from a form-fill-seal machine or the like. In yet another embodiment, during package formation a reclosable zipper is sealed to each package and then a slider is inserted on to the zipper. In yet another embodiment, during package formation a reclosable zipper is sealed to each package and a slider is inserted on to each zipper, either before or after zipper sealing.

Description

BACKGROUND OF THE INVENTION
• 1. Field of the Invention[0001]
• The present invention relates to the field of reclosable packaging. More particularly, the present invention relates to methods of making reclosable packages having slide zippers on horizontal form-fill-seal (HFFS) machines.[0002]
• 2. Description of the Prior Art[0003]
• Methods of making reclosable packages on various types of HFFS machines are well-known in the reclosable packaging art, such as that disclosed in U.S. Pat. No. 4,876,842. Slide zippers, i.e., plastic zippers opened and closed by a slider, are likewise well-known in the reclosable packaging art. Examples of several types of slide zippers can be found in U.S. Pat. Nos. 5,007,143, 5,008,971, 5,131,121 and 5,664,299.[0004]
• The reclosable packaging art, however, is virtually, if not totally, silent as it relates to the manufacture of slide-zippered packages on HFFS machines. Because of the facility which is provided by slide zippers to consumers of reclosable packages and because of the large volume of reclosable packages made on HFFS machines today, it is highly desirable and advantageous to combine the two technologies so that slide-zippered reclosable packages can be made on HFFS machines.[0005]
SUMMARY OF THE INVENTION
• Accordingly, the object of the present invention is to provide methods of making slide-zippered reclosable packages on HFFS machines.[0006]
• According to a first embodiment of the present invention, a chain of packages is formed, filled and sealed on an HFFS machine or the like. A pair of opposing film extensions are provided on each package. As the chain of packages is indexed forwardly, a reclosable zipper is inserted between the film extensions of the leading package and sealed thereto. A slider is then inserted on to the reclosable zipper of the leading package and the completed leading package is cut from the chain.[0007]
• According to a second embodiment of the present invention, packages having reclosable zippers are output from an HFFS machine or the like, either individually or in a chain. A slider is then inserted on to the zipper of each package in turn.[0008]
• According to a third embodiment of the present invention, packages are formed, filled and sealed on an HFFS machine or the like. During package formation, a reclosable zipper is sealed to each package and then a slider is inserted on to the zipper.[0009]
• According to a fourth embodiment of the present invention, packages are formed, filled and sealed on a horizontal form-vertical fill-seal (HVFS) machine or the like. During package formation, a reclosable zipper is sealed to each package and a slider is inserted on to each zipper, either before or after zipper sealing.[0010]
• The present invention will now be described in detail, with frequent reference being made to the drawings identified below in which the same numerals represent the same elements.[0011]
BRIEF DESCRIPTION OF THE DRAWINGS
• In the accompanying drawings:[0012]
• FIG. 1 shows packages being made on an HFFS machine in accordance with a first embodiment of the present invention;[0013]
• FIG. 2 is a perspective view of a package made on the HFFS machine of FIG. 1 prior to attaching the zipper;[0014]
• FIG. 3 is a cross-sectional view of the HFFS machine of FIG. 1 at the slider insertion point;[0015]
• FIG. 4 is a cross-sectional view of a first variation of the HFFS machine of FIG. 1;[0016]
• FIG. 5 shows sliders being inserted on a chain of packages in accordance with a second embodiment of the present invention;[0017]
• FIG. 6 shows sliders being inserted on to individual packages in accordance with a variation of the second embodiment of the present invention;[0018]
• FIG. 7 shows packages being made on an HFFS machine in accordance with a third embodiment of the present invention;[0019]
• FIG. 7[0020]ais a cross-sectional view of the HFFS machine of FIG. 7 at the first zipper sealing station;
• FIG. 8 is a cross-sectional view of the HFFS machine of FIG. 7;[0021]
• FIG. 9 is a cross-sectional view of a package made on the HFFS machine of FIG. 7;[0022]
• FIG. 10 shows packages being made on an HFFS machine in accordance with a variation of the third embodiment of the present invention;[0023]
• FIG. 11 is a cross-sectional view of packages being made on the HFFS machine of FIG. 10;[0024]
• FIG. 12 shows packages being made on an HFVS machine in accordance with a fourth embodiment of the present invention;[0025]
• FIG. 13 shows packages being made on an HFVS machine in accordance with a first variation of the fourth embodiment of the present invention;[0026]
• FIG. 14 shows packages being made on an HFVS machine in accordance with a second variation of the fourth embodiment of the present invention;[0027]
• FIG. 15 is a cross-sectional view of reclosable zipper being sealed to one package side in the HFVS machine of FIG. 14;[0028]
• FIG. 16 is a cross-sectional view of a package prior to being filled on the HFVS machine of FIG. 14;[0029]
• FIG. 17 is a cross-sectional view of a tamper evident sealed being placed on a package made on the HFVS machine of FIG. 14;[0030]
• FIG. 18 shows packages being made on an HFVS machine in accordance with a third variation of the fourth embodiment of the present invention; and[0031]
• FIG. 19 is a cross-sectional view of a package being formed on the HFVS machine of FIG. 18.[0032]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
• In accordance with a first embodiment of the present invention, FIG. 1 shows how slide-zippered packages can be made on a typical[0033]thermoform HFFS machine10. Formingfilm12 is indexed off acoil14 of the same in a package forming direction. Downstream of the formingfilm coil14 at a formingstation15 the formingfilm12 is thermoformed, using techniques well-known to those of ordinary skill in the reclosable packaging art, into achain13 of advancing box-like bottom portions ortrays16 of what will ultimately be completed packages. Product may then be loaded into thebottom portions16 at aloading station17 if desired. After optional product loading,top film18 is indexed off acoil20 of the same in the package forming direction, laid over the advancingbottom portions16 and perimeterly sealed thereto at fourlocations22,24,26,28 at asealing station21 to form a sealedpackage29, as shown in FIG. 2. The seal at the package opening22 takes the form of a peel seal so that the consumer can easily gain access to the contents of the package.
• As shown in FIG. 2, which is a perspective view of a sealed[0034]package29 formed on the thermoform HFFS machine of FIG. 1 prior to zipper and slider insertion, thebottom portion16 andtop film18 are each provided withfilm extensions30,32 which extend beyond thepeel seal22 on one side of thepackage29. Thefilm extensions30,32 are not sealed to each other and may readily be spread apart from each other.
• After the[0035]top film18 is sealed to thebottom portion16 at thesealing station21, thepackage chain13 enters a zipper and slider insertion and attachingstation34. At thisstation34 thefilm extensions30,32 of the leading package are spread apart from each other and interlockedreclosable zipper36 supplied from acoil38 of the same is fed between thefilm extensions30,32, as shown in FIG. 3, which is a cross-sectional view of the package chain and zipper and slider insertion and attachingstation34. The zipper is comprised of twointerlocking closure elements39,41 andflanges40,42 extending therefrom which are sealed to thefilm extensions30,32, such as by a pair of seal bars (not shown). After thezipper36 is thus sealed to the film extensions of the leading package, thezipper36 is stomped at each end of the package by a stomping apparatus (not shown) to provide end stops for the slider and to ensure that the ends of thezipper36 do not come apart during use.
• A[0036]slider44 is then removed from acoil46 thereof and inserted on to thezipper36 by a slider insertion apparatus (not shown). The slider and zipper are designed such that the slider will open the zipper as the slider is moved along the zipper in an opening direction towards an opening end of the zipper and close the zipper as the slider is moved along the zipper in a closing direction towards a closing end of the zipper. It is preferable during slider insertion that the slider be inserted at the closing end of the zipper since the zipper is initially interlocked. The slider will thus be positioned for normal functioning. If the slider is inserted at a location other than at the closing end, it will be necessary to actuate the slider by moving it to the closing end, after which the slider will be in position for normal functioning. Such actuation may be done on the HFFS machine, or it may be done by the initial package user.
• After slider insertion, the leading package is cross-cut from the remainder of the[0037]chain13 by any one of many commonly known cutting apparatuses (not shown) to remove a completedpackage48 having a slide zipper.
• In practice, the[0038]package chain13 may be a single chain as shown in FIG. 3, or, alternatively, may be a multiple chain, such as thedouble chain50 shown in cross-section in FIG. 4. In the case of a double chain, where two packages are joined side by side, the process of making the packages is virtually identical to that described above, except that the zippers and sliders are attached to theopposite sides47,49 of the package chain simultaneously, as shown in FIG. 4, thus requiring two zipper and slider insertion and attachingstations34. Additionally, a second cut is needed in the machine direction along thecentral axis51 of the chain to remove the side-by-side packages from one another.
• The foregoing embodiment of the present invention is not limited to practice on thermoform HFFS machines, but may be practiced on any type of package making machine where the packages are formed with[0039]film extensions30,32 of the type discussed above.
• FIGS. 5 and 6 depict a second embodiment of the present invention.[0040]Zippered packages52, either in achain54 as shown in FIG. 5 or individually as shown in FIG. 6, are output from an HFFS machine (not shown), or any other type of bag making machine. In the case of FIG. 5, thepackage chain54 is indexed into aslider insertion station56. At theslider insertion station56 or at an earlier station, the ends of thezipper36 on the leading package in thechain54 are stomped as discussed above. Then, aslider44 is removed from theslider coil46 and inserted on to thezipper36. Finally, a completedpackage58 have a slide zipper is cross-cut from the chain by a cutting apparatus (not shown).
• In the case of FIG. 6, the[0041]packages52 are individual and not chained together. Theindividual packages52 are transported one by one into theslider insertion station56 by aconveyor belt60 or the like, where the ends of thezipper36 on the leading package are stomped (unless the stomping was done during package formation) and aslider44 is removed from theslider coil46 and inserted on to thezipper36 to provide a completed slide-zipperedpackage58.
• In accordance with a third embodiment of the present invention, FIG. 7 shows a[0042]thermoform HFFS machine62 configured to make slide-zippered packages. As in FIG. 1, the formingfilm12 is indexed off acoil14 of the same. Downstream of the formingfilm coil14 at a formingstation15 the formingfilm12 is thermoformed into achain13 of box-like bottom portions ortrays16 of what will ultimately be completed packages. Product may then be loaded into thebottom portions16 at theloading station17 if desired. Eachbottom portion16 is provided with alip64 on one side thereof, as shown in FIG. 8, which is a cross-sectional view of thechain13. After optional product loading, thereclosable zipper36 is indexed off acoil38 of the same and laid over thelips64 of thebottom portions16. Thelower zipper flange42 is then sealed to thelips64 by a sealing mechanism, such as aheater bar63, at a sealingstation68. Theheater bar63 is positioned below thelips64, as shown in FIG. 7a,which is a cross-sectional view of zipper attachment to the package lips. Also shown in FIG. 7ais an insulating and guideplate67 positioned between the zipper flanges. The insulating and guideplate67 provides a surface for the heater bar to react against and removes any danger of sealing through the zipper flanges, thereby eliminating the need for accurate heat control. The insulating and guideplate67 also serves to guide and position the zipper onto the package lips to ensure accurate sealing.
• A[0043]slider44 is then removed from theslider coil46 and inserted on to thezipper36 of theinstant bottom portion16 at aninsertion station70. After slider insertion, the ends of the zipper are stomped. Alternatively, the zipper ends could have been stomped together earlier, either on the machine or pre-stomped prior to winding on the supply coil, and the zipper indexed to the bottom portion. Thetop film18 is then indexed off thetop film coil20, laid over the formedbottoms16 and the attachedzipper36 and sealed to the formedbottoms16 and theupper flange40 of thezipper36 around the perimeter of the package at asecond sealing station72. As discussed above, the seal at the mouth of the package may take the form of a peel seal to provide easy access to the contents of the package. Optionally, thetop film18, if it is long enough, may be heat tacked to thebottom portion16 over thezipper36 to provide a tamperevident seal65, as shown in FIG. 9. In the final step, the completedpackages48 are cross-cut from the chain at a cuttingstation74. If a double chain is used, as shown in FIG. 8, then the side-by-side packages must also be cut from each other in the machine direction.
• When making packages using multiple package chains, it is not necessary that the zippers and sliders be applied to[0044]opposite sides47,49 of the package chain, as shown in FIGS. 4 and 8. Rather, it is also possible to apply the zippers and sliders to the same sides of the packages. For example, a triple package chain is shown in FIGS. 10 and 11. In this case thetop film18 is pre-perforated so that it can be split into three sections and laid over each of thebottom portions16. This splitting is achieved by aseparator assembly78 having three L-shapedseparator plates78a,78b,78c.As thetop film18 is indexed off itsroll20, the vertical portions of theseparator plates78a,78b,78csplit the pre-perforatedtop film18 into threeportions18a,18b,18cand guide the three top film portions as they are laid over their correspondingbottom portions16. Additionally, the horizontal portions of the separator plates interact with the sealing mechanism to ensure that there is no seal through, eliminating the need for accurate heat control.
• As indicated above, the present invention is not limited to thermoform HFFS machines, but may be practiced on any type of HFFS machine and on any type of bag making machine for that matter. FIG. 12 shows how slide-zippered packages can be made on a horizontal form-vertical fill-seal machine (HFVS)[0045]80 in accordance with a fourth embodiment of the present invention.
• [0046]Package film82 is paid off aroll84 of the same. Downstream apull roller98 is provided for driving thefilm82 through the machine. Afolder plow86 positioned downstream of thefilm roll84 folds thepackage film82 about abottom crease83 to form opposingpackage walls116,118. Interlockedreclosable zipper36 is then paid off aroll38 of the same and fed between the advancing package walls.Sliders44 are inserted on to thereclosable zipper36 prior to thefolder plow86 at package width intervals at what will be the closing end of the zipper by a slider insertion mechanism at theslider insertion station88. Thesliders44 are supplied from theslider coil46.
• At a first sealing[0047]station90, thezipper flanges40,42 are sealed to the opposing package walls. Then at stompingstations92, the ends of thezipper36 for a given package are stomped. At asecond sealing station94, the folded film and zipper are cross-sealed to form discrete packages.
• Because the zippers are closed, it is necessary to open the zippers in order to fill the packages. This is achieved at a[0048]slider opening station96, where the slider is held in position as the zipper and film are advanced when thepull rollers98 are activated. As the zipper moves through the slider, it is opened. Alternatively, the slider itself may be moved. Then, at a cuttingstation100 theindividual packages102 are cut from one another. The separated packages102 are then taken to the fillingstation104 where they are filled. Filling may occur by means of a fillingturret106 or the packages may be filled in-line, both of which techniques are well-known to those of ordinary skill in the art. After a package is filled, theslider44 is moved backed to the closing end of the zipper. Finally, a tamper evident108 seal may optionally be provided above thezipper36. Completed slide-zipperedpackages110 are then output from the machine.
• A first variation of the fourth embodiment is shown in FIG. 13. As is clear from FIG. 13, the sliders are attached downstream of the[0049]folder plow86, rather than upstream of thefolder plow86. Additionally, thesliders44 are attached to thezippers36 at their opening ends, rather than at their closing ends as above. Thus, in order to open the zippers for package filling the zippers must be forced open from the outside of the packages, rather than by using the sliders. This opening action is carried out at anopening station97 by a suitable mechanism provided for the specific zipper construction. After filling at the fillingstation104, the slider is moved to the closing end of the zipper.
• A second variation of the fourth embodiment of the present invention is shown in FIG. 14. Under certain circumstances it may be desirable to eliminate the step of opening the zipper for filling. This can be done by sealing one zipper flange to one side of the folded film at the first sealing[0050]station90 prior to filling, as shown in FIG. 15, rather than sealing both flanges to the film as done previously.
• As shown in FIG. 15, one[0051]flange40 of the zipper is sealed to onewall116 of the folded film82 a distance below the top120. Thefilm82 protrudes above the zipper to form a pair of opposingears122. To ensure that thezipper flanges40,42 do not seal to each other or the other side of the package at the first sealingstation90, a J-shapedinsulator plate124 is inserted between thezipper flanges40,42 and between the unsealedzipper flange42 and theother package wall118, as shown in FIG. 15. In addition, one of the seal bars112 is kept hot and the other114 is deactivated. Then, at thesecond sealing station94, the packages are cross-sealed from the bottom of thefilm92 up to but not including the zipper. When it comes time to fill the bag at the fillingstation104, the zipper is bent to one side, as shown in FIG. 16. In this manner, filing may proceed unobstructed, and there is no danger of contaminating the zipper. After filling, the unsealedzipper flange42 is sealed to the other side of the package and theears122 are sealed to each other by a pair of seal bars126 with a perforation seal and a peel seal above thezipper36, as shown in FIG. 17. At the same time the ends of the zipper are cross-sealed together and end stops for the slider are created. The above indicated zipper cross-seals extend below the zipper flanges into the package side seals, but not above and beyond the zipper profiles.
• A third variation of the fourth embodiment of the present invention is shown in FIG. 18. In this variation, the[0052]zipper36 andslider44 are attached to thebottom128 of the package, rather than at the top120. As thefilm82 is fed over thefolder plow86, aperforator130 perforates thefilm82 below theslider44 to form a pair of perforations132 (alternatively, a single perforation132amay be provided). The zipper is then sealed to the bottom of the package by sealing the zipper flanges to the film beyond the perforation lines, as shown in FIG. 19. Apeel seal136 may be provided between the zipper flanges in order to maintain the integrity of the packages.
• The packages are completed as discussed above, except that they are filled from the opposing end to which the zipper has been attached. Further, if a bottom gusset is required a V shaped film can be introduced between the[0053]package walls116 and118 and sealed into place. During use, the packages are inverted so that the zipper and slider are at the top and theperforated portion134 is torn away from the package to gain access to the slider.
• Thus, in the foregoing manner the object of the present invention is achieved. Modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the scope of the appended claims.[0054]

Claims (33)

We claim:

1. A method of making reclosable packages, said method comprising the steps of:

feeding a supply of forming film in a package forming direction;

forming said forming film into a chain of bottom package portions and advancing said chain in said package forming direction;

feeding a supply of top film in said package forming direction;

laying said top film on to said chain of bottom package portions;

sealing said top film to said chain of bottom package portions to form a chain of packages, each of said packages including a pair of opposing film extensions on one side thereof which are not sealed to each other;

feeding a supply of interlocked reclosable zipper between the film extensions of said packages;

sealing a length of said reclosable zipper to the film extensions of each of said packages;

providing a supply of sliders, each of said sliders being insertable on to said reclosable zipper and adapted to open and close said reclosable zipper as said slider is moved along said zipper in opening and closing directions, respectively; and

for each of said packages, removing a slider from said slider supply and inserting said slider on to said reclosable zipper length.

2. The method according toclaim 1 including the step of separating the film extensions of said packages prior to feeding said reclosable zipper therebetween.

3. The method according toclaim 1 including the step of stomping the ends of said reclosable zipper lengths.

4. The method according toclaim 1 including the step of cutting each of said packages from said package chain.

5. The method according toclaim 1 wherein each of said packages includes a peel seal adjacent its reclosable zipper.

6. A method of making packages having slide zippers, said method comprising the steps of:

providing a supply of packages, each of said packages having a reclosable zipper;

providing a supply of sliders, each of said sliders being insertable on to said reclosable zipper and adapted to open and close said reclosable zipper as said slider is moved along said reclosable zipper in opening and closing directions, respectively; and

for each of said packages, removing a slider from said slider supply and inserting said slider on to said reclosable zipper.

7. The method according toclaim 6 wherein said packages are connected together in a chain.

8. The method according toclaim 7 including the step of cutting each of said packages from said package chain.

9. A method of making reclosable packages said method comprising the steps of:

feeding a supply of forming film in a package forming direction;

forming said forming film into a chain of bottom package portions, each of said bottom package portions having a lip on one side thereof;

advancing said chain of bottom package portions in said package forming direction;

feeding a supply of interlocked reclosable zipper in said package forming direction;

sealing a length of said reclosable zipper to the lip of each of said bottom portions;

providing a supply of sliders, each of said sliders being insertable on to said reclosable zipper and adapted to open and close said reclosable zipper as said slider is moved along said zipper in opening and closing directions, respectively;

for each of said bottom portions, removing a slider from said slider supply and inserting said slider on to said reclosable zipper length;

feeding a supply of top film in said package forming direction; and

sealing said top film to each bottom package portion and its corresponding length of reclosable zipper to form a chain of packages, each of said packages having a length of reclosable zipper and a slider.

10. The method according toclaim 9 including the step of stomping the ends of said reclosable zipper lengths.

11. The method according toclaim 9 including the step of cutting each of said packages from said package chain.

12. The method according toclaim 9 wherein each of said packages includes a peel seal adjacent its reclosable zipper.

13. The method according toclaim 9 wherein halves of said reclosable zipper are insulated from one another during said sealing steps.

14. The method according toclaim 9 wherein said chain of bottom package portions is comprised of at least two parallel joined chains and wherein said top film is separated along pre-applied perforations and sealed to each of said parallel chains.

15. A method of making reclosable packages, said method comprising the steps of:

feeding a supply of package film in a package forming direction;

folding said package film about a bottom crease to form opposing package walls, said opposing package walls advancing in said package forming direction;

feeding a supply of interlocked reclosable zipper between said opposing package walls;

sealing said reclosable zipper to said opposing package walls;

providing a supply of sliders, each of said sliders being insertable on to said reclosable zipper and adapted to open and close said reclosable zipper as said slider is moved along said reclosable zipper in opening and closing directions, respectively;

removing sliders from said slider supply and inserting said sliders on to said reclosable zipper; and

cross-sealing said folded film at package-width intervals to form a chain of packages, each of said packages having a reclosable zipper and a slider.

16. The method according toclaim 15 wherein said sliders are inserted on to said reclosable zipper prior to said reclosable zipper being fed between said opposing package walls.

17. The method according toclaim 15 wherein said sliders are inserted on to said reclosable zipper after said zipper is fed between said opposing package walls.

18. The method according toclaim 16 wherein said reclosable zipper is sealed to said opposing package walls adjacent said bottom crease.

19. The method according toclaim 15 including the additional steps of:

opening the reclosable zipper of each package;

filling each package; and

closing the reclosable zipper of each package.

20. The method according toclaim 19 wherein the reclosable zipper of each package is opened by moving its slider from a closing end of the reclosable zipper to an opening end of the reclosable zipper.

21. The method according toclaim 19 wherein the reclosable zipper of each package is opened by holding its slider in place as the package film is advanced in the package forming direction.

22. The method according toclaim 19 wherein the reclosable zipper of each package is closed by moving its slider from an opening end of the reclosable zipper to a closing end of the reclosable zipper.

23. The method according toclaim 19 wherein the reclosable zipper of each package is opened by means other than the slider.

24. The method according toclaim 15 including the step of sealing each package above its reclosable zipper to form a tamper evident seal.

25. The method according toclaim 15 including the step of cutting each of said packages from said chain of packages.

26. The method according toclaim 15 wherein the ends of the reclosable zipper of each package are cross-sealed.

27. The method according toclaim 15 wherein said reclosable zipper supply is stomped at package width intervals.

28. A method of making reclosable packages, said method comprising the steps of:

feeding a supply of package film in a package forming direction;

folding said package film about a bottom crease to form opposing package walls, said opposing package walls advancing in said package forming direction;

feeding a supply of interlocked reclosable zipper between said opposing package walls;

sealing one-half of said reclosable zipper to a first of said package walls;

providing a supply of sliders, each of said sliders being insertable on to said reclosable zipper and adapted to open and close said zipper as said slider is moving along said zipper in opening and closing directions, respectively;

removing sliders from said slider supply and inserting said sliders on to said reclosable zipper;

cross-sealing said folded film at package-width intervals to form a chain of packages, each of said packages having a reclosable zipper and a slider;

filling each of said packages; and

sealing the unsealed half of the reclosable zipper of each of said packages to the other package wall.

29. The method according toclaim 28 including the step of bending the reclosable zipper of each of said packages toward the package wall to which it is sealed prior to filling said package.

30. The method according toclaim 28 wherein during the sealing of said one-half of said reclosable zipper to said first package wall said reclosable zipper is insulated from the other package wall.

31. The method according toclaim 28 wherein during sealing of said one-half of said reclosable zipper to said first package wall said one-half of said reclosable zipper is at least partially insulated from the other half of said reclosable zipper.

32. The method according toclaim 28 including the step of cross-sealing the ends of the reclosable zipper of each package.

33. The method according toclaim 28 wherein said zipper cross-seals extend into said package cross-seals.

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