CN1997567B

CN1997567B - Blank, container and method for lifting an article containing liquid entered into a sealed container

Info

Publication number: CN1997567B
Application number: CN2005800157134A
Authority: CN
Inventors: 斯蒂芬·J.·休伊特; 卡拉·玛丽·古斯塔夫森; 曼弗雷德·弗里德里希·莫勒; 罗恩·杜安·诺伍德; 亚历山大·克雷格·布什曼
Original assignee: Evergreen Packaging International BV
Current assignee: International Paper Co
Priority date: 2004-05-18
Filing date: 2005-05-17
Publication date: 2010-05-05
Anticipated expiration: 2025-05-17
Also published as: CN1997567A; US20050258221A1

Abstract

A container formed from a paperboard laminate and including a rupturable opening for gaining access to the contents of the container, the opening being defined by an embossment pattern in a wall of the container. The embossment defines a weakened area which includes the layers of the laminate, but without destruction or deterioration of selected ones of the barrier/sealing layers of the laminate. A method is disclosed.

Description

Be used to improve blank, container and the method for the liquid inclusion that enters closed container

Technical field

The present invention relates to be used for to enter the rupturable opening and forming method thereof of the inclusion of closure (sealing) container.

Background technology

Liquid food is contained in usually in closure (sealing) container and offers the customer, and these containers are to be made of ply wood, and ply wood comprises cardboard substrate, and this cardboard substrate has at least one or a plurality of outer barrier layer.This barrier layer makes cardboard and comes from internal tank or exterior moisture separates.Sometimes, barrier layer (a plurality of barrier layer) can further hinder or reduce the transfer of gas by wall of container.Skin may comprise hot sealing layer sometimes, and hot sealing layer also can be used as barrier function.

The inclusion that enters in the container normally provides in the opening that defines in the wall of container head by common suction pipe inserted.This zone is former to have many forms, for example sends and partially or completely extend through a plurality of slits of wall of a container, local perforations or other technology by wall of container from center-point.The most normally, this zone is to use partly the otch by wall of container thickness to define, and therefore allows for example to use common suction pipe that this zone is staved and splits, and therefore enters internal tank.Equally, prior art comprises the technology that the major part of passing wall of container or full depth are provided with slit or otch, and these slits or otch seal provisionally with the flap of patch, cover cap or container movably.

Should be pointed out that in industry, exist and be used for for example container of milk of food that wherein, container is the geometry that the cup of lid is arranged.Yet in some container in these containers, the opening that is used to enter the inclusion of container is positioned at the bottom of container, i.e. the end relative with lid in the container.In the disclosure, " roof " of term container will be interpreted as referring to wall of a container, pass it and realize entering the container inclusion by using opening disclosed herein.Therefore, aforementioned have lid the cup in, " roof " of this container will comprise the cup actual bottom wall.

The reduction wall of container for example can run into variety of issue with these prior aries of inserting suction pipe.Clearly, the unencapsulated full otch that passes thickness of container wall is unallowed.Weaken the zone of wall of container by the thickness otch that partly passes wall need be to the blank of final formation container otch accurately.Have now found that the known commercial manufacturing equipment that is used for this purpose is unreliable when making this local thickness otch.Can be increased the weight of this unreliability by the thickness of the ply wood of otch and other factors.

Made in the prior art attempting and in wall of container, made atenuator region by embossed pattern in wall of container. forming by paperboard laminate and expecting the special container that is used for receiving fluids; allow the one layer or more in the layer of ply wood but being less than all layers breaks in the process of the opening that defines the inclusion that is used for entering in the future container. this for the liquid that is used to have short shelf life for example milk be correct. for being used for for example container of orange juice of other liquid; do not allow the liquid in the container to enter the fiber of the cardboard substrate of ply wood. have now found that known embossed pattern and manufacturing technology thereof can make the surface among the apparent surface who is laminated to cardboard substrate or the skin of barrier on both or leakproofing material break; the absorbency fiber that therefore can expose cardboard is to suck liquid from internal tank; perhaps suck liquid from external container; in this incident any all can damaged layer pressing plate storage container inclusion in container ability; or allow the piercing through unintentionally of atenuator region of wall of container. under more serious situation; the leakage of container inclusion can cause the purity of container inclusion under any this situation; tastes etc. are impaired. simultaneously; as pointing out; in special container, allow to be used to form one or more barrier of paperboard laminate or the breaking of sealing layer of liquid container; and in other liquid container, do not allow this layer to break. have now found that the known prior art that comprises known embossed pattern lacks as one man provides atenuator region in the liquid container wall that uses paperboard laminate ability; wherein atenuator region is remaining on inclusion in the container and/or protection container inclusion is avoided being kept perfectly on the required degree of undesirable variation of container inclusion harmless, and still can use common suction pipe to break at an easy rate.

Summary of the invention

According to the present invention, but in wall of container, provide a kind of improved burst region to enter the inclusion of container alternatively, this improvement comprises the embossed pattern of at least the first and second elongated for example wire, and described embossing for example intersects each other in about its each midpoint.Each embossing has semicircle basically for example circular cross-sectional geometry, in a single day apply disrupture force in the suction pipe on being pushed to the embossing intersection point by this, the zone that is close to its intersection point has the littler rupture resistance of outwards arranging from embossing intersection point side direction than in the embossing in zone basically.

The present invention is particularly useful for providing the optional of inclusion to the container that is formed by cardboard substrate to enter, and described cardboard substrate has barrier or the sealable outer that is bonded to the polymeric material in the cardboard outside face one or two.In one embodiment of this back, embossing is implemented in and will forms on the blank of container.Preferably, embossing is protruding from the outside face of the wall of a container finished, but if desired, can carry out embossing from any outside face of container blanks.

In the method for the invention, the blank that expectation will be erect to container uses the supporting mould of punch and spill to carry out mold pressing according to the present invention, and the formpiston preferred arrangements is on the blank surface of the inwall that finally becomes erected container.The closed degree when being arranged in wherein between punch and the former and the size and the geometric configuration of projection on the formpiston and the cavity in the former by being chosen in laminate paperboard, method of the present invention can repeatedly provide uniform embossing and embossing to have breaking of the unanimity littler than all layers of laminate paperboard, perhaps if desired, be different from one or more layers non-the breaking of one deck at least in the random layer of ply wood or the ply wood, wherein one deck is designed to the barrier that prevents that gas or liquid from infiltrating container or flowing out from container at least, or as the hot sealing layer that forms by blank in the container.The embossing that is generated can use common suction pipe to break at an easy rate.

According to one aspect of the present invention, blank comprises the substrate with many line of weakness.Substrate is configured to be folded to form containment shell along many line of weakness.On the part of substrate, define and finish the structure atenuator region.The structure atenuator region comprises a plurality of embossing, and embossed designs becomes by a pair of formpiston insert manufacturing on the opposite flank that acts on substrate.The structure atenuator region comprises basically the thickness less than substrate thickness.In case being configured to apply power thereon, the structure atenuator region will break to allow to enter the interior zone of containment shell.

According to another aspect of the present invention, container comprises blank, and blank has ply of board and ply of board has facing surfaces.Blank be configured to integrally be folded to form have roof, the containment shell of diapire and sidewall.Be arranged in a plurality of barriers and sealing layer at least one apparent surface of ply of board.On the part of roof, define and finish the structure atenuator region.The structure atenuator region comprises a plurality of embossing, and embossed designs becomes by a pair of formpiston insert to make.In a plurality of embossing each includes basically less than the thickness of substrate thickness, and a plurality of embossing also comprise selected geometric configuration, and a plurality of like this barriers and sealing layer just keep intact on the function when ply wood is molded.The structure atenuator region is configured in case will break applying power on the position of a plurality of embossing on the structure atenuator region.

According to another aspect of the present invention, blank forming equipment is made embossing on the part of blank.This equipment comprises the mould cylinder that is designed to vertically be installed on the blank forming equipment.A plurality of mould inserts with a plurality of embossing are installed on a plurality of mould cylinders releasedly along the longitudinal direction.The manufacturing structure atenuator region on the part of passing blank wherein thereby a plurality of mould inserts are configured to be fitted to each other.

According to another aspect of the present invention, a kind of method that is used to make blank is provided. this method comprises provides substrate with many line of weakness and the step of making embossed pattern by a pair of formpiston insert of use in substrate. and embossed pattern is defined by a plurality of shallow indentation embossments that intersects each other. and the structure atenuator region has been defined in the position of the intersection point of a plurality of shallow indentation embossments, and this structure atenuator region has littler rupture resistance than the remainder of embossed pattern.

Description of drawings

Fig. 1 is the expansion view of an embodiment that is used to form the blank of container, but this container has the burst region that defines in according to roof of the present invention;

Fig. 2 is the top view of an embodiment of embossed pattern of the present invention;

Fig. 3 is the cutaway view that the line 3-3 along Fig. 2 cuts open, for the part of vessel top wall and comprise that the embossed pattern that embodies various aspects of the present invention also described to hang breaking of embossing shown in suction pipe is used for;

Fig. 4 be wall of container shown in Fig. 3 a part lateral elevational view and shown that schematically suction pipe is via the rupturable opening transparent walls in the wall of various aspects of the present invention;

Fig. 5 is the transparent view of the embossing in the wall of container and has embodied each feature of the present invention;

Fig. 6 is the view that embodies the optional embossed pattern of each feature of the present invention;

Fig. 7 is the view that embodies the optional embossed pattern of each feature of the present invention;

Fig. 8 is the view that embodies the optional embossed pattern of each feature of the present invention;

Fig. 9 is the view that embodies the optional embossed pattern of each feature of the present invention;

Figure 10 is the view that embodies the optional embossed pattern of each feature of the present invention;

Figure 11 is the view that embodies the optional embossed pattern of each feature of the present invention;

Figure 12 is the lateral elevational view in the section of the typical mould used in forming embossing of the present invention;

Figure 13 is the cutaway view of the part of the laminate paperboard used in the present invention;

Figure 14 is the cutaway view of the part of the another kind of laminate paperboard used in the present invention; And

Figure 15 is used for the diagram of mold pressing according to an embodiment of the equipment of ply wood of the present invention.

Figure 16 is the transparent view of second embodiment of embossed pattern of the present invention;

Figure 17 is the lateral plan of embossing shown in Figure 16;

Figure 18 is the lateral plan of a pair of formpiston facing each other;

Figure 19 is the cutaway view of the part of the substrate used in the second embodiment of the present invention; And

Figure 20 is used for the diagram of mold pressing according to second embodiment of the equipment of blank of the present invention.

The specific embodiment

The present invention relates to be particularly useful for comprising the container of liquid food, liquid food is estimated to enter and sucking-off from internal tank via common suction pipe, therefore the less relatively atenuator region that suction pipe also is used for the wall (being generally roof) of disruptable container also allows straw to enter internal tank, needs like that and not as is known in the art to describe in detail.

Fig. 3 and Fig. 4 have shown that the part 20 of roof 22 of container and the end 24 of suction pipe 26 enter internal tank via the atenuator region in the wall of container 38, and this atenuator region is to use the end of straw to break.

In one embodiment of the invention, paperboard laminate 10 (Figure 13 and Figure 14) comprises cardboard substrate 12, cardboard substrate 12 have for example about 15 and about 17 mils between thickness. be used in the typical paperboard laminate that the container of liquid uses, at least one of cardboard and common two facing surfaces 14,16 are bonded with barrier layer 18 thereon, 19, barrier layer 18,19 be generally polymeric material for example polyethylene and can serving as stop gas (multiple gases) or liquid (multiple liquid) although enter or pass the barrier of wall of container and/or form the aquaseal that uses in the container as blank. this barrier or sealing layer can be for example about 25 micron thickness usually. the ply wood that shows among Figure 13 and Figure 14 only comprises two-layer respectively and three layers, but be to be understood that, need if desired or for the application-specific of ply wood, ply wood can comprise additional layer.

Fig. 1 has shown the typical blank of using 30 in the formation of common gable top container, the gable top container comprises an embodiment of embossed pattern 28, and embossed pattern 28 is defined in the plate 32 on the blank top 34 that finally becomes container head.Shown in blank comprise each broken line 36, broken line 36 for example forms the line of weakness in the blank thickness usually.

Referring to Fig. 2-5, according to one aspect of the present invention, the wall of a container 22 that is used for liquid food for example is provided with structure atenuator region 38, and structure atenuator region 38 is designed so that to stave with common suction pipe 26 and splits.In the present invention, this atenuator region adopted the form of the embossing of in wall of container, defining 40 and comprise respectively at least the first and second elongated generally (for example wire)

part

42 and 44, the first and second generally

elongated portion

42 and 44 for example intersect each other at its approximate mid points 46 places.Shown in and in the preferred embossing, each linear parts of embossing is essentially semi-round cross-sectional plane, shown in Fig. 3,5,13 and 14.Because they form by mold pressing, each linear parts will be weakened to first degree and be easy to be broken.In the present invention, the very important point is, by using this crossing first and second elongated portions (linear, semi-circular part) 42,44 generally of embossing, inventor of the present invention provides a zone in the intersection point 46 of linear parts, this zone can be weakened to second degree, and it provides the littler resistance of resistance than the remainder of each linear parts of the embossing of breaking to break.Therefore, embossed pattern of the present invention is provided with a zone in embossed pattern, this zone can be applied to by the end of using common suction pipe against this regional power and be easy to break, thus provide rapidly and be easy to wire embossing substantially weakened intersection break initially begin.In case more weak intersection area begins to break, just need less power to break and extend laterally the zone that enters the linear parts of sending from the intersection area of embossed pattern from intersection area.In Fig. 4, shown the resultant displacement of the

part

52,54 of breaking of embossed pattern after straw has inserted internal tank.

According to one aspect of the present invention, embossed pattern is selected to and comprises at least the first and second elongated portions (linear parts substantially) 42,44 generally, and these two parts intersect each other with preferably halving.First and second generally

elongated portion

42,44 preferably by the fiber orientations rotation miter angles of cardboard substrate.Should be towards guaranteeing that the behavior of breaking acts on the fiber equably.Yet, can expect to use plural linear parts, but this is not essential.Preferably, linear parts all has equal lengths, but also can use the linear parts with different length, and these linear parts comprise the length that for example replaces.In the embodiment shown in Figure 2, first generally elongated portion 42 terminal 56,58 and second generally the terminal 60,62 of elongated portion 44 all be tapered downwards and/or become circle, thereby reduce atenuator region extend beyond each linear parts terminal point and the possibility of breaking.In representative type embodiment, the center line 64 of each linear parts of embossing intersects each other and preferably halves with the center line 66 of the linear parts of embossed pattern.In the embodiment of Fig. 2, the terminal point of two linear parts is arranged in the imaginary circle 68 concentric with the intersection point 46 of linear parts.In any case, the diameter of imaginary circle (Fig. 2) surpasses the diameter of the straw of the atenuator region that will be used to break, but is no more than such minimum diameter, i.e. the degree that liquid is easy to leak from container when straw insertion internal tank.In the representative type container, imaginary circle diameter will about 0.4 and about 0.6 inch between.In addition, although each linear parts of preferred embossing has the identical geometric configuration that comprises same widths, should be appreciated that the combination that to use linear parts with different in width.The example of difference configuration that in Fig. 5-11, has shown the linear parts 78-88 of embossing 70-79 respectively.

Shown in Fig. 3,5,13 and 14, each linear parts of embossing of the present invention has semi-round cross-sectional plane.In the exemplary embodiments of the paperboard laminate of using 16 mil thickness, the width " W of each linear parts ₁" be selected to and be approximately 0.039 inch.Similarly, the height " H of each linear parts ₁" be selected to and be approximately 0.006 inch. in this example; the area of the weakening part of embossed pattern (intersection point) is approximately 0.002 sq in. in the present embodiment, can use the suction pipe of 4 mm dias of the embossing that is easy to break to apply the disrupture force of about 20.91N (4.7lbf) (aviation value) to atenuator region.

Especially referring to Fig. 5, as can be seen, embossed pattern a plurality of first and second the intersection point 46 of

elongated portion

42,44 is intracardiac and preferably generate zone 38 around the center of pattern in pattern generally, and zone 38 is combinations of the width of each linear parts.This structure has defined reduction bridge 90 (referring to Figure 13 and Figure 14) above intersection point, but reduction bridge 90 comprises and is subjected to stress single-piece paperboard laminate.The zone that inventor of the present invention has been found that this expansion and reduction provides littler rupture resistance than the remainder of each linear parts of embossing.Therefore, when the end of common suction pipe is pressed on this enlarged area 38, the initial rupture directly and rapidly of enlarged area will take place.This breaks and is easy to from enlarged area along each linear parts lateral propagation generating opening, and this opening is enough to make the end of straw to enter the inclusion of internal tank with the suction evacuation container that applies by the opposite end at straw fully.

Very importantly, in the present invention, before blank was erected into container, each pattern of embossing was endowed blank 30.For this reason, inventor of the present invention has been found that the embossing that can use punch and female die set to form the expectation with semi-circular cross-section.The cutaway view that in Figure 12 and Figure 15, has shown a suitable module 92.In this module, former 94 is provided with the cavity 96 of the cross-sectional plane with truncated pyramidal, it is used for receiving therein a part of laminate paperboard blank, and this blank is pressed in the cavity by the coupling projection 100 of the cross-sectional plane with truncated pyramidal of formpiston 102.

In one embodiment, Tu Qi height h is than the degree of depth big similar 60% of female die cavity.In addition, the width of the base of formpiston projection is than the width big similar 57% of the mouth of former cavity.

In another embodiment, Tu Qi height h is than the degree of depth short about 22% of female die cavity.In addition, the width of the base of formpiston projection is narrower by about 19% than the width of the mouth of former cavity.These size relationships provide basically that well-distributed pressure is applied on the paperboard laminate of inserting between punch and the former, therefore form the even displacement of laminate paperboard and form the embossed pattern that its parts all have uniform thickness.In addition, these size relationships use female die cavity with truncated pyramidal cross-sectional plane and punch to convex to form to have the embossing of semi-circular cross-section basically.In a preferred embodiment, the preferred distance that on the plane of the outside face (or depending on circumstances at inside face) of laminate paperboard, does not extend beyond greater than the approximate thickness of laminate paperboard of each embossing.The final restriction that highly is selected to the degree that is subjected to closed module of the mold pressing part of laminate paperboard, this function is easy to realize and have now found that the homogeneity that can provide paperboard laminate to break away from its sheet form and enter the displacement in the embossing.Punch and former comprise and promptly are included at an easy rate in the existing container blanks make-up machine and relatively cheap, and their uses in the present invention will bring less relatively fringe cost to the manufacturing of container blanks like this.More importantly, the use of punch and former provides the control to paperboard laminate homogeneity of displacement in the embossing forming process, and that this is the automatic manufacturing of container blanks is required.In addition, the mould that the embossing with semi-circular cross-section has been defined in use has now found that can provide the benefit that never reckons with respect to the scope of breaking of the outer polymer layer of controlling laminate paperboard alternatively (a plurality of outer polymer layer) or degree, but therefore has just not damage, the pollution etc. of inclusion according to the container of burst region of the present invention.In addition, among others, no matter the integraty of the outer field this reservation of laminate paperboard is can be by the synthetic potential failure of the fiber absorbs of cardboard self exposure and vessel strength from the outside or the in-to-in leakage of container if having been got rid of liquid.Significantly, inventor of the present invention has been found that, mold pressing paperboard laminate between the punch of the formpiston projection of female die cavity with truncated pyramidal and complimentary geometry and former, extruded layer pressing plate therein, its mode for the semi-round basically cross-sectional geometry of expectation that embossing can be provided can the disrupted beds pressing plate any skin, or have one or more but non-whole layers limited breaking in the layer of ply wood.

According to one aspect of the present invention, with respect to the equipment that schematically shows among Figure 15, but provide a kind of method that is used for forming burst region at the wall of the blank that forms container, comprise the following steps: a part of laminate paperboard 10 is arranged between punch 102 and the former 94, laminate paperboard 10 has the skin of barrier or leakproofing material on its at least one surface, shown in Figure 13 and 14, punch 102 and former 94 have respectively separately projection 100 and the feature of cavity 96, they are used to define and have the embossing of semi-circular cross-section basically; And with described punch and the former following degree that presses together: defined described embossing, but can not damage or damage the integraty of other layer of the described skin of barrier material or ply wood. in the equipment shown in Figure 15, punch and former are installed in respectively on the excircle of mip rolls 104 and 106, therefore be provided for being defined in subsequently the embossing on the thin slice of laminate paperboard, wherein the thin slice of laminate paperboard is supplied with continuously and is passed through mip rolls.

In a preferred method, the laminate sheet material of wall of container is internally by the outside mold pressing of container.That is, embossing is stretched out from the outside face of container, and is relative with the embossing of inwardly stretching out from container.But this feature of the present invention is provided for more the breaking of cleaning of the weakened intersection of burst region, and is accompanied by the even propagation of breaking along each linear parts of embossing.Yet if desired, embossing can inwardly be formed by container from the outside.

Referring to Figure 16-20, wherein shown in a pair of formpiston insert 110.Formpiston insert 110 comprises a plurality of embossing 112.A plurality of embossing 112 comprise four shallow indentation embossments 114a, the 114b, 114c and the 114d that intersect each other.Each shallow indentation embossments 114a-d has semi-round basically cross-sectional plane as shown in Figure 19.

Figure 17 has shown the lateral plan of formpiston insert 110.Should be pointed out that each formpiston insert 110 design and manufacture them and be rendered as two crossing cylinders 120 and 122.This particular design guarantees that when two formpiston inserts are compressed on the blank as shown in figure 18, the substrate meeting weakens and polymeric layer (a plurality of polymeric layer) is excellent in mold process in blank.

Figure 19 has shown the blank 30 with structure atenuator region 38 with the second embodiment of the present invention.As shown in figure 20, when two formpiston inserts 110 are come a time-out, they are compressed on the blank and generate two smooth hemisphere (atenuator region 126) in blanks.The center of these hemisphere is considered to the atenuator region 126 in the blank.Atenuator region 126 generates and substrate is stretched in part of ply wood above its maximum tolerate stress by being compressed in two formpiston inserts 110 on the blank.For example, the cardboard of ply wood partly has about breaking extension of percent 2 to 3, but other layer of ply wood for example polyethylene layer have percent 65 to 70 breaking extension, these layers just can not damage like this.Like this, but just can in underlying structure, design disrupted beds.

Figure 20 has shown the blank forming equipment 128 that is used for making embossing on a part of blank.This equipment comprises a plurality of

mould cylinders

130 and 132 that are designed to vertically be installed on the blank forming equipment.A plurality of formpiston inserts 110 with a plurality of embossing are installed on a plurality of

mould cylinders

130 and 132 releasedly along the longitudinal direction.A plurality of formpiston inserts 110 are tightened by hole 134 and hole 135, and its mesopore 134 and hole 135 are knock holees.The manufacturing structure atenuator region on the part of passing blank wherein thereby a plurality of mould inserts are configured to be fitted to each other.

Should be pointed out that structure atenuator region 38 has basically the thickness less than blank thickness.Therefore, the power that is applied to the about 20.91N (4.7lbf) on the atenuator region 38 can break blank in the most weak location.

According to the second embodiment of the present invention, provide the method that is used to make blank, as shown in Figure 20.In operation, this method comprises provides the substrate with many line of weakness.Next, in substrate, make embossed pattern by using a pair of formpiston insert.Embossed pattern is defined by a plurality of shallow indentation embossments that intersects each other.The structure atenuator region has been defined in the position of the intersection point of a plurality of shallow indentation embossments, and this structure atenuator region has littler rupture resistance than the remainder of embossed pattern.

Although the present invention that used specific numerical value and term description, those of ordinary skill in the art can expect that receivable possibility of the present invention or improvement and the present invention are limited only expection hereinafter described in the appending claims.

Claims

1. container that is formed by ply wood, described ply wood have ply of board and are positioned at serving as barrier layer or sealing layer or not only served as barrier but also served as the layer of sealing layer material at least one apparent surface of ply of board, and described container has the top, and this container comprises:

The structure atenuator region that defines relatively with wall of a container,

Described atenuator region is defined by the first and second elongated substantially embossing that intersect each other at least,

Each described embossing has the horizontal cross-sectional geometry of the bending of each complete layer that comprises ply wood, wherein, described embossed designs becomes to make by the formpiston insert of the paired aligning on the opposed surface that acts on described ply wood simultaneously, each described embossing has continuous length, and liquid can not see through on their length, and defined atenuator region, in case the suction pipe on the described atenuator region of the apparent position that is resisted against the intersection point that is positioned at the described at least the first and second elongated substantially embossing is applied disrupture force, and described atenuator region will break.

2. container as claimed in claim 1 is characterized in that, the cross-sectional area substantial constant of the described cross-sectional geometry of each described at least the first and second elongated substantially embossing.

3. container as claimed in claim 2, it is characterized in that, the described intersection point of the described at least the first and second elongated substantially embossing has defined atenuator region, described atenuator region to described ply wood at the rupture resistance at described intersection point place basically less than any rupture resistance that has in position in the described at least the first and second elongated substantially embossing from its described intersection point shifted laterally.

4. container as claimed in claim 1 is characterized in that, each described embossing is protruding and surpass the plane of the outside face of described ply wood from described container.

5. container as claimed in claim 1 is characterized in that, it is thick that the distance that the plane of the outside face that surpasses described ply wood is stretched out in each described embossing is not more than about wall of a container.

6. container as claimed in claim 1 is characterized in that, described ply wood comprises the polyethylene layer on each apparent surface of described ply wood; And wherein, described embossing can not damage the continuity of described the above polyethylene layer of ply wood.

7. as the described container of one of claim 1 to 6, it is characterized in that described embossing is essentially wire and the wherein said at least the first and second elongated substantially embossing structurally weaken described ply wood in the zone of described embossing.

8. one kind is used to improve and enters the method for liquid inclusion that is formed and had the closed container of roof by paperboard laminate, comprises the following steps

In the roof of container, provide embossed pattern, described pattern comprises at least along its intersect each other once the first and second elongated embossing of length separately at least, wherein said embossed designs becomes to make by the formpiston insert of the paired aligning on the opposed surface that acts on described ply wood simultaneously, each described embossing has continuous length, and liquid can not see through on their length

Each described elongated embossing has crooked semi-round basically cross-sectional geometry,

The structure atenuator region has been defined in the position of the intersection point of described embossing, and this structure atenuator region has littler rupture resistance than the remainder of described elongated embossing.

9. method as claimed in claim 8 is characterized in that, also comprises described embossing is placed as from the step of the projection of the outside face of the ply wood that defines internal tank.

10. method as claimed in claim 8 is characterized in that, the distance that described embossing is stretched out from the outside face of ply wood is not more than the thickness of vessel top wall.

11. a blank that is used to form the airtight container of receiving fluids comprises:

Substrate with many line of weakness, described substrate design becomes to be folded to form the leak free shell along many line of weakness;

The structure atenuator region that in a part of substrate, defines, described structure atenuator region comprises a plurality of crossing embossing, described embossed designs becomes by first formpiston insert on the apparent surface of substrate and the manufacturing of the second formpiston insert, and described structure atenuator region comprises that basically being configured to Once you begin to apply puncture force thereon from external container less than the thickness of substrate thickness and wherein said structure atenuator region will break to allow to enter the interior zone of containment shell.

12. blank as claimed in claim 11, it is characterized in that, described substrate also comprises inside face and outside face, be coated in polymer inner layer on the substrate inside face, be coated in polymeric outer layer, wherein said internal layer and the outer disrupture force that equals 20.91N that is configured to resist on the structure atenuator region that is applied to a plurality of embossing on the outside face of substrate.

13. blank as claimed in claim 12 is characterized in that, described substrate comprises that also poly-mer interior surface layers and the wherein said substrate on the inside face that is coated in substrate is configured to resist the power that is applied to the about 20.91N on the structure atenuator region.

14. a container comprises:

Blank with ply of board, described ply of board comprises facing surfaces, described blank be designed to integrally be folded to form have roof, the containment shell of diapire and sidewall;

Be arranged in a plurality of barriers and sealing layer at least one described facing surfaces of ply of board, the breaking extension characteristic of at least one in described a plurality of barriers and the sealing layer surpasses the breaking extension characteristic of described ply of board;

The structure atenuator region that on a part of roof, defines, described structure atenuator region comprises a plurality of crossing embossing, described embossed designs becomes by the paired formpiston insert manufacturing on the apparent surface who acts on blank, each described a plurality of crossing embossing has basically the thickness less than ply wood thickness, described a plurality of crossing embossing also comprises the geometric configuration of choosing, like this when the ply wood mold pressing a plurality of barriers and sealing layer can keep on the function intact and wherein the structure atenuator region be configured in case on the locational structure atenuator region of a plurality of crossing embossing, apply power and will break.

15. container as claimed in claim 14 is characterized in that, selected geometric configuration comprise a plurality of embossing that intersect each other and wherein each embossing have semi-round basically cross-sectional plane.

16. container as claimed in claim 15 is characterized in that, described embossing is inwardly stretched out and is stretched into the plane of ply of board from ply wood.