CN1777549A - Method and system for forming integrated plate for vacuum package - Google Patents

Abstract

A bag for use in vacuum packaging can comprise a first panel and a second panel overlapping each other. One or more trays for retaining a perishable or other product is formed on one or more of the panels. Each tray can optionally have ridges for suspending a product above the tray so that liquid can collect in the tray. In one embodiment, a method for forming such a bag between a cooling roll and laminating roll includes feeding a gas-impermeable material to a nip formed between the rolls. Resin is extruded to the nip such that the resin fills a plurality of cavities of the cooling roll, forming an inner layer that adheres to the gas-impermeable material. A resultant sheet is then folded to form the first and second panel and sealed such that an envelope is formed.

Description

Be formed for the system and method for vacuum-packed integrated plate

Prioity claim

The application requires the preceence of following application: by the U.S. Provisional Patent Application No.60/452 that is entitled as " being used for vacuum-packed salable bag (Sealable Bag Having anIntegrated Tray for Use in Vacuum Packaging) with integrated plate " that people such as Henry Wu submitted on March 5th, 2003,172 (attorney docket No.TILA-01178US0); By the U.S. Provisional Patent Application No.60/452 that is entitled as " manufacturing is used for vacuum-packed method (Method for Manufacturing a Sealable Bag Having an Integrated Tray for Use inVacuum Packaging) with salable bag of integrated plate " that people such as Henry Wu submitted on March 5th, 2003,171 (attorney docket No.TILA-01178US1); By the U.S. Patent application No.10/_ that is entitled as " being used for vacuum-packed salable bag (Sealable Bag Having an Integrated Tray forUse in Vacuum Packaging) " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01178US2) with integrated plate; And by the U.S. Patent application No.10/_ that be entitled as " manufacturing be used for vacuum-packed method (Method for Manufacturing aSealable Bag Having an Integrated Tray for Use in Vacuum Packaging) with salable bag of integrated plate " of people such as Hongyu Wu in submission on March 4th, 2004, _ (attorney docket No.TILA-01178US3).

CROSS-REFERENCE TO RELATED PATENT

The application is incorporated by reference with all following copending applications:

By the U.S. Provisional Patent Application No.60/452 that is entitled as " being used for vacuum-packed liquid-collection bag (Liquid-trapping Bag for Use in Vacuum Packaging) " that people such as Henry Wu submitted on March 5th, 2003,168 (attorney docket No.TILA-01177US0);

By the U.S. Provisional Patent Application No.60/452 that is entitled as " method (Method for Manufacturing a Liquid-trapping Bag for Use inVacuum Packaging) that manufacturing is used for vacuum-packed liquid-collection bag " that people such as Henry Wu submitted on March 5th, 2003,171 (attorney docket No.TILA-01177US1);

By the U.S. Provisional Patent Application No.60/451 that is entitled as " being used for vacuum-packed salable bag (Sealable Bag Having an Indicia for Use in VacuumPackaging) " that people such as Henry Wu submitted on March 5th, 2003,954 (attorney docket No.TILA-01179US0) with mark;

By the U.S. Provisional Patent Application No.60/451 that is entitled as " manufacturing is used for vacuum-packed method (Method for Manufacturing a Sealable Bag Havingan Indicia for Use in Vacuum Packaging) with salable bag of mark " that people such as Henry Wu submitted on March 5th, 2003,948 (attorney docket No.TILA-01179US1);

By the U.S. Provisional Patent Application No.60/452 that is entitled as " being used for the vacuum-packed salable bag (Sealable Bag Having an Integrated Zipper for Use inVacuum Packaging) of integrating slide fastener that has " that people such as Henry Wu submitted on March 5th, 2003,142 (attorney docket No.TILA-01180US0);

By the U.S. Provisional Patent Application No.60/452 that is entitled as " manufacturing is used for vacuum-packed method (Method for Manufacturing a Sealable BagHaving an Integrated Zipper for Use in Vacuum Packaging) with salable bag of integrating slide fastener " that people such as Henry Wu submitted on March 5th, 2003,021 (attorney docket No.TILA-01180US1);

By the U.S. Provisional Patent Application No.60/451 that is entitled as " being used for vacuum-packed salable bag (Sealable Bag Having an Integrated Valve Structure forUse in Vacuum Packaging) " that people such as Henry Wu submitted on March 5th, 2003,955 (attorney docket No.TILA-01181US0) with integration valve structure;

By the U.S. Provisional Patent Application No.60/451 that is entitled as " manufacturing is used for vacuum-packed method (Method for Manufacturing a Sealable BagHaving an Integrated Valve Structure for Use in Vacuum Packaging) with salable bag of integration valve structure " that people such as Henry Wu submitted on March 5th, 2003,956 (attorney docket No.TILA-01181US1);

By the U.S. Provisional Patent Application No.60/452 that is entitled as " being used for vacuum-packed salable bag (Sealable Bag Having an IntegratedTimer/Sensor for Use in Vacuum Packaging) " that people such as Henry Wu submitted on March 5th, 2003,157 (attorney docket No.TILA-01182US0) with integration timer/sensor;

By the U.S. Provisional Patent Application No.60/452 that is entitled as " manufacturing is used for vacuum-packed method (Method for Manufacturing aSealable Bag Having an Integrated Timer/Sensor for Use in Vacuum Packaging) with salable bag of integration timer/sensor " that people such as Henry Wu submitted on March 5th, 2003,139 (attorney docket No.TILA-01182US1);

The U.S. Patent application No.10/169 that is entitled as " method (Method for Preparing Air Channel Equipped Film for Use in VacuumPackage) that preparation is used for vacuum-packed air by-pass passage equipment film " that submits on June 26th, 2002,485;

By the pass state patent application No.10/_ that is entitled as " being used for vacuum-packed liquid-collection bag (Liquid-trapping Bag for Use in Vacuum Packaging) " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01177US2);

By the U.S. Patent application No.10_ that is entitled as " method (Method for Manufacturing Liquid-trapping Bag for Use inVacuum Packaging) that manufacturing is used for vacuum-packed liquid-collection bag " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01177US3);

By the U.S. Patent application No.10/_ that is entitled as " being used for vacuum-packed salable bag (Sealable Bag Having an Indicia for Use in VacuumPackaging) " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01179US2) with mark;

By the U.S. Patent application No.10/_ that is entitled as " manufacturing is used for vacuum-packed method (Method for Manufacturing a Sealable BagHaving an Indicia for Use in Vacuum Packaging) with salable bag of mark " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01179US3);

By the U.S. Patent application No.10/_ that is entitled as " being used for the vacuum-packed salable bag (Sealable Bag Having an Integrated Zipper for Use inVacuum Packaging) of integrating slide fastener that has " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01180US2);

By the U.S. Patent application No.10/_ that is entitled as " manufacturing is used for vacuum-packed method (Method for Manufacturing a Sealable BagHaving an Integrated Zipper for Use in Vacuum Packaging) with salable bag of integrating slide fastener " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01180US3);

By the U.S. Patent application No.10/_ that is entitled as " being used for vacuum-packed salable bag (Sealable Bag Having an Integrated Valve Structurefor Use in Vacuum Packaging) " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01181US2) with integration valve structure;

By the U.S. Patent application No.10/_ that is entitled as " manufacturing is used for vacuum-packed method (Method for Manufacturing a SealableBag Having an Integrated Valve Structure for Use in Vacuum Packaging) with salable bag of integration valve structure " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01181US3);

By the pass state patent application No.10/_ that is entitled as " being used for vacuum-packed salable bag (Sealable Bag Having an IntegratedTimer/Sensor for Use in Vacuum Packaging) " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01182US2) with integration timer/sensor; With

By the U.S. Patent application No.10/_ that is entitled as " manufacturing is used for vacuum-packed method (Method for Manufacturing aSealable Bag Having an Integrated Timer/Sensor for Use in Vacuum Packaging) with salable bag of integration timer/sensor " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01182US3).

Technical field

The present invention relates to be used for the method and apparatus that vacuum-packed sack and manufacturing are used for vacuum-packed sack.

Background technology

Be used to preserve the perishable items (for example, fish and meat, processed food, ready-made meal and leftovers) and the method and apparatus of non-perishable and be widely known by the people, and greatly different.Food is perishable, this be because organic matter (for example, bacterium, fungi and mould) open at food containers, food be exposed to air after undue growth.Many method and apparatus are preserved food by the invasion and attack that protection food is not full of organic air.Usual way and device comprise with food be put in the gas-impermeable plastics bag, the suction of use vacuum pump or other suction source finds time air from sack, and sealed bag closely.

Being used for vacuum-packed sack can be made up of first panel and second panel, and each panel is made up of heat-sealable film based on plastics (for example, polyethylene) individual layer.By the heat seal technology with panel sealing together, seal (envelope) with formation along the major part of panel periphery.Perishable farm products (for example, the food that easily degenerates) or other products wrap in during this seals via unencapsulated part, subsequently by this unencapsulated partially draining air.When perishable farm products wrap in the sack and air from sack after the inner emptying, this unencapsulated part is heated and pushes, panel is adhered to mutually, thereby sealed bag.

U.S. Patent No. 2,778,173 disclose a kind of by at least one panel, forming the method that passage improves the emptying of air in the sack, here that this patent is incorporated by reference by embossing technology.Between removal period, air is selected from sack along these passages.Embossing forms the pattern of protrusion (protuberance) at least one panel.These protrusions can be discrete pyramid, hemisphere etc., and form by die and the punch extruding panel that use is heated.First panel covers on second panel, makes a protrusion on the panel in the face of relative panel.The contacted peripheral edge of panel seals mutually with formation to be sealed, and this is encapsulated in peripheral unsealing and partly has inlet.Perishable farm products or other products wrap in by this inlet and seal, and seal this inlet then.Subsequently, opening with a part of panel material of channel connection in penetrate, air shifts out from sealing inside by passage and opening, then sealed open.The sack of this type perishable farm products or other products wrap in seal in after need two extra sealing steps.Another problem is that embossing produces the marking on plastics, makes on the opposition side of panel and forms indenture.

For fear of extra sealing step, vacuum bag forms has first panel and second panel that is made of laminated film.Each panel comprises heat-sealable internal layer, airtight skin and selectable one or more interlayer.This sack is at U.S. Patent No. Re.34, and is open, here that it is incorporated by reference in 929.At least one film of at least one panel uses the embossing mould to carry out embossing, with the passage that forms protrusion and determined by the space between the protrusion, thereby makes air be easy to emptying from vacuum bag.

U.S. Patent No. 5,554,423 disclose and can be used for vacuum-packed another kind of sack, here that it is incorporated by reference.Sack is made up of first and second panels, and each panel is made up of airtight skin and heat-sealable internal layer.A plurality of heat-sealable strand of elements (strand element) are attached to the internal layer of first panel or second panel with regular spaced heat.Space between the thigh element is as the passage of evacuation of air.The thigh element is extruded from extruder head, and uses pressure roller to be thermally bonded to hot sealable layer.Producing strand element needs independent equipment, is complicated with a plurality of strands of elements with the step that regular spaced heat is attached to heat-sealable internal layer.In addition, use this process to form difficulty of various pattern forms.

Description of drawings

Embodiments of the invention are described in further detail in conjunction with the accompanying drawings.

Figure 1A is the transparent view that is used to make the method for vacuum bag according to an embodiment of the invention;

Figure 1B is the lateral plan of the method shown in Figure 1A, and the texturizing method that uses in the embodiment of the invention is shown;

Fig. 1 C is the guide wire of alternative shape of Figure 1B;

Fig. 2 A is the planar view of panel according to an embodiment of the invention, and this panel is by the process manufacturing shown in Figure 1A-1C;

Fig. 2 B is the cross sectional drawing of panel according to an embodiment of the invention, and this panel is by the process manufacturing shown in Figure 1A-1C; And

Fig. 3 is the transparent view of vacuum bag according to an embodiment of the invention.

The specific embodiment

Figure 1A-1C illustrates an embodiment according to the method for manufacturing vacuum bag of the present invention.Vacuum bag comprises first panel and second panel, wherein each panel all comprises airtight basic unit 108 and heat-sealable internal layer 106, and at least one panel has and is used for preventing to be contained in the perishable farm products of vacuum bag or the concave wall that other products moves (raised wall).Stacked roller 102 and chill roll 104 are arranged to make heat-sealable internal layer 106 to be laminated to airtight basic unit 108 in the resin cooling that fusing is extruded.As shown in Fig. 1 C, the gap between stacked roller 102 and the chill roll 104 can be controlled according to the specification that is used in the panel in the vacuum packaging (for example, thickness).The temperature of chill roll 104 remains in the scope, and the heat-sealable resin that fusing is extruded fully cools off to form the pattern of expectation.For example ,-15 ° to about-10 ° range of temperatures can be enough to suitably form desired pattern approximately.The range of temperatures of chill roll 104 can be according to the constituent of the constituent of resin, airtight basic unit 108, environmental conditions etc. and different, and may need calibration (calibration).In addition, the size of chill roll 104 can be defined as having the diameter bigger than stacked roller 102, thereby resin that fusing extrudes is contacted with bigger cooled surface area.For example, the diameter of chill roll 104 can be that about 1.5 of stacked roller 102 diameters arrive about 3 times big.

Heat-sealable internal layer 106 is generally made by thermoplastic base resin.For example, this resin can be by being suitable for preserving food and harmless polyethylene (PE) is made.Vacuum bag can be made like this: two panels is overlapped mutually, so that the heat-sealable internal layer 106 of two panels contacts, and the part that heat is applied to panel periphery sealed with formation.Thermoplastic base resin may be selected to, two panels firmly combination each other when enough heat applies.

Airtight basic unit 108 supplies to gap between chill roll 104 and the stacked roller 102 by the feedway (not shown).Airtight basic unit can or have similar quality and can be used in this manufacturing process and also can make by heated other material by polyester, polyamide, ethylene-vinyl alcohol copolymer (EVOH), nylon.Airtight basic unit 108 can be made up of a layer or two or more layers.When adopting the basic unit of multiple-structure, should be appreciated that its gross thickness also adjusts in the allowed band with respect to total airtight basic unit 108.

Extrusion press 110 is located by this way: supply to roll gap between chill roll 104 and the airtight basic unit 108 by the resin that fusing is extruded, and make resin layer that fusing extrudes in airtight basic unit 108.Resin is supplied with by the nozzle 112 of extrusion press 110.The temperature of the resin that fusing is extruded depends on the type of employed resin, and scope generally can be from about 200 ° to about 250 °.The amount that is expressed to the resin in the lamination unit 100 depends on the expectation thickness of heat-sealable internal layer 106.

The pattern of constructing on the circumferential surface of chill roll 104 can comprise the chamber that is used to form the concave wall of determining one or more discrete dishes according to an embodiment of the invention.This pattern also can comprise the chamber (and/or protrusion) that is used for forming ridge or protrusion in concave wall selectively, is used for perishable farm products or other products are suspended at the substrate top of dish, thereby liquid is collected in the dish.The resin of being extruded by nozzle 112 is squeezed between chill roll 104 and airtight basic unit 108, and flows in the chamber of chill roll 104.Resin quick cooling that fusing is extruded and the pattern that is frozen into expectation are attached to airtight basic unit 108 simultaneously, thereby form the heat-sealable internal layer 106 of panel.Heat-sealable internal layer 106 can form when resin fully is heated with the permission resin flows, thereby this resin of mold pressing, these are different with the orthodox method that adopts the back embossed, and in the back embossed, heat-sealable internal layer is rolling or carry out embossing between male part and female part by mould.

Fig. 2 A is the planar view that is used for the panel that is formed by chill roll 104 of vacuum bag, and the mold pressing by this way of wherein heat-sealable internal layer 106 promptly, forms to be identified for limiting the dish 230 that perishable farm products or other products move concave wall 232.Ridge 234 is used for perishable farm products or other products are suspended at the substrate top of dish in the concave wall 232 of dish.As shown in the figure, ridge 234 is section lines, and is formed for gathering the liquid vessel 236 of liquid.In other embodiments, ridge can form multiple different pattern, liquid vessel 236 can be formed have multiple different shape and size.In other embodiments, dish 230 can comprise protrusion, and wherein protrusion can be discrete pyramid, hemisphere etc., thereby liquid is collected in the substrate of dish 230 equably.In other embodiments, panel 220 can comprise a plurality of discrete dishes 230, and each dish 230 is sized to be fit to a kind of application and has ridge 234 or protrusion selectively.Those of ordinary skill in the art can understand, and can construct panel 220 with countless different modes, with restriction perishable farm products moving in vacuum bag.

The thickness that is formed on concave wall 232 on the heat-sealable internal layer 106 of panel 220 and ridge 234 can determine that the width of concave wall 232 and ridge 234 can be determined by the width in chamber by the degree of depth in the chamber of chill roll 104.Therefore, the specification in the chamber that shape, width and the thickness of concave wall 232 and ridge 234 can be by changing chill roll 104 is controlled.Fig. 2 B is the cross sectional drawing of above-mentioned panel 220.In heat-sealable internal layer 106, the scope of the height of concave wall 232 can be for example about 35-75 mil or bigger, the scope of the thickness of airtight basic unit 108 can be for example about 0.5-8.0 mil, and the thickness range of heat-sealable internal layer 106 can be for example about 0.5-6.0 mil (not having concave wall 232).Optionally, can comprise ridge 234 or protrusion.Ridge 234 or protrusion can have the height lower than concave wall 232, thereby when perishable farm products was retained in the dish 230, perishable farm products or other products can suspend.For example, if the height of concave wall 232 is 75 mils, then the height of ridge 234 or protrusion is about 30 mils.The size of concave wall 232, ridge 234, basic unit 108 and internal layer 106 is suggestiveness ground explanations, and can not to be interpreted as be restriction to size.

Fig. 3 illustrates and is used for vacuum-packed sack according to an embodiment of the invention.Vacuum bag 350 comprises first panel 320 and second panel 322 of mutual overlapping.According to the above embodiments, at least one dish 230 is formed on first panel 320.Second panel 322 (or first panel 320) comprises the passage (not shown) along a part of panel that is used for from sack evacuation of air and other gas selectively.For example, passage can form described in " being used for vacuum-packed liquid-collection bag (Liquid-trapping Bag for Use in Vacuum Packaging) " as cross-referenced applications incorporated by reference here.The heat-sealable resin bed 106 and the airtight basic unit 108 of first and second panels 320,322 are generally made by identical materials respectively, but are also optionally made by the different materials that presents heat-sealable and airtight body respectively.As mentioned above, heat-sealable resin bed 106 is as internal layer, and airtight basic unit 108 is as outer.Following a, left side and the right hand edge of first and second panels 320,322 mutually combine by heating, to be formed for holding sealing of vacuum-packed perishable farm products of needs or other products.In case perishable farm products or other products are placed in the vacuum bag 350, air and/or other gas can emptying from sack 350, for example the vacuum seal machine of use as describing in the U.S. Patent No. 4,941,310 incorporated by reference here.One denier air and/or other gas are emptied to the degree that makes the user satisfied, and then inlet can seal by heating, thereby activate heat-sealable internal layer 106 and they are combined.

It is to provide for the purpose of illustration and description that the fwd of the preferred embodiment of the present invention is described.This does not also mean that it is exhaustive, or limit the invention to disclosed precise forms.Obviously, many modifications and variations will be tangible for the working technical personnel of this area.The selection of these embodiment and description are in order to explain principle of the present invention and practical application thereof best, thereby make others skilled in the art can understand various embodiment of the present invention and be suitable for expecting the various modifications of specific use.Scope of the present invention is limited by claims and equivalent thereof.

Claims (47)

1. sack that is suitable for holding article comprises:

Determine to be suitable for holding the dish of described article and first panel of a plurality of protrusions in this dish, this protrusion is suitable for described article are bearing in the substrate top of described dish;

Second panel; And

Described first panel and second panel are fixed together to form described sack.

2. sack as claimed in claim 1, wherein said first panel is made by heat-sealable material, and described second panel is made by gas impermeable material.

3. sack that is suitable for holding article comprises:

First panel, it has:

First skin; With

With first internal layer that described first skin is connected, described first internal layer comprises and integrally formed at least one dish of described first internal layer;

Second panel, described second panel is connected with described first panel, has sealing of an inlet so that described first panel and second panel form, and described second panel has:

Second skin; With

Second internal layer that is connected with described second skin.

4. sack as claimed in claim 3 also is included in a plurality of protrusions in described at least one dish.

5. sack as claimed in claim 3, wherein said first skin and second skin comprise gas impermeable material.

6. sack as claimed in claim 5, wherein said gas impermeable material are a kind of in polyester, polyamide, ethylene-vinyl alcohol copolymer and the nylon.

7. sack as claimed in claim 3, wherein said first internal layer and second internal layer comprise thermoplastic base resin.

8. sack as claimed in claim 7, wherein said thermoplastic base resin is a polyethylene.

9. sack as claimed in claim 5, wherein when described article were positioned at described dish, described article were by described a plurality of protrusion supportings.

10. sack as claimed in claim 4, wherein when described article were positioned at described dish, described article were supported in the substrate top of described at least one dish.

11. sack as claimed in claim 4, wherein said a plurality of protrusions have been determined a plurality of grooves, and described a plurality of flute profiles become can be collected in these a plurality of grooves liquid; And

Wherein when described article were positioned at described dish, described article were arranged in the top of the liquid that is collected at described a plurality of grooves.

12. a sack that is suitable for holding article comprises:

First panel, it comprises:

First airtight layer; With

Be laminated to first internal layer of described first airtight layer, described first internal layer comprises and integrally formed at least one dish of described first internal layer;

Second panel, it comprises:

Second airtight layer; With

Be laminated to second internal layer of described second airtight layer; And

Wherein, described first panel is connected with described second panel and seals with formation, makes described first internal layer relative with second internal layer, and described sealing comprises the heat-sealable opening that is used for vent gas.

13., also be included in a plurality of protrusions in described at least one dish as the sack of claim 12.

14. as the sack of claim 12, wherein said first airtight layer and second airtight layer comprise a kind of in polyester, polyamide, ethylene-vinyl alcohol copolymer and the nylon.

15. as the sack of claim 12, wherein said first internal layer and second internal layer comprise thermoplastic base resin.

16. as the sack of claim 15, wherein said thermoplastic base resin is a polyethylene.

17. as the sack of claim 13, wherein when described article were positioned at described dish, described article were by described a plurality of protrusion supportings.

18. as the sack of claim 13, wherein when described article were positioned at described dish, described article were supported in the substrate top of described at least one dish.

19. as the sack of claim 13, wherein said a plurality of protrusions have been determined a plurality of grooves, described a plurality of flute profiles become can be collected in these a plurality of grooves liquid; And

Wherein when described article were positioned at described dish, described article were arranged in the top of the liquid that is collected at described a plurality of grooves.

20. a heat-sealable sack that is suitable for holding article comprises:

First panel, it comprises:

First airtight layer; With

At least one first interlayer that is connected with described first airtight layer;

Be laminated to first internal layer of described at least one first interlayer, described first internal layer comprises and integrally formed at least one dish of described first internal layer; With

Second panel, it comprises:

Second airtight layer; With

At least one second interlayer that is connected with described second airtight layer; With

Be laminated to second internal layer of described at least one second interlayer;

Wherein, described first panel is connected with described second panel and seals with formation, thereby makes described first internal layer relative with second internal layer, and described sealing comprises the heat-sealable opening that is used for vent gas.

21., also be included in a plurality of protrusions in described at least one dish as the sack of claim 20.

22. as the sack of claim 20, wherein said first airtight layer and second airtight layer comprise a kind of in polyester, polyamide, ethylene-vinyl alcohol copolymer and the nylon.

23. as the sack of claim 20, wherein said first internal layer and second internal layer comprise thermoplastic base resin.

24. as the sack of claim 23, wherein said thermoplastic base resin is a polyethylene.

25. as the sack of claim 21, wherein when described article were positioned at described dish, described article were by described a plurality of protrusion supportings.

26. as the sack of claim 21, wherein when described article were positioned at described dish, described article were supported in the substrate top of described at least one dish.

27. as the sack of claim 21, wherein said a plurality of protrusions have been determined a plurality of grooves, described a plurality of flute profiles become can be collected in these a plurality of grooves liquid; And

Wherein when described article were positioned at described dish, described article were arranged in the top of the liquid that is collected at described a plurality of grooves.

28. one kind is used to form the method that is used in the panel in the salable bag, comprises:

Material is flow on the backing film, thereby the described fluent material of mold pressing is to form a structure;

Wherein said structure comprises a dish;

Cool off described fluent material, so that described fluent material solidifies the internal layer that has described structure with formation; And

Wherein said internal layer is attached to described backing film.

29. a method that is used to form the sack that is suitable for holding article, described sack are at stacked roller and have between the chill roll in a plurality of chambeies that are used to form a structure and partly form, described method comprises:

Airtight membrane supplying is arrived the roll gap that forms by described chill roll and stacked roller;

Extrusion resin makes described resin fill described roll gap and a plurality of chambeies that are exposed to described roll gap;

The described resin of extruding between described chill roll and stacked roller;

Cool off described resin, make described resin form described structure and be attached to described airtight film, thereby form a panel;

Folding described panel overlaps mutually the first of this panel and the second portion of this panel;

Apply heat for first, second and the 3rd side of described first and second parts, seal to form one; And

Wherein said structure comprises the one or more dishes with a plurality of protrusions.

30. a method that is used to make the sack that is suitable for holding article comprises:

To first roll gap that is formed by first chill roll and first cascade roller, described first chill roll has a plurality of chambeies that are used to form a structure with the first airtight membrane supplying;

Wherein said structure is the one or more dishes with a plurality of protrusions;

Extrusion resin makes described resin fill described first roll gap and a plurality of chambeies that are exposed to described first roll gap;

The described resin of extruding between described first chill roll and first cascade roller;

Cool off described resin, make described resin form described structure and be attached to the described first airtight film, to form first panel;

The second airtight membrane supplying is arrived second roll gap that forms by second chill roll and the second stacked roller;

Extrusion resin makes described resin fill described second roll gap;

The described resin of extruding between described second chill roll and the second stacked roller;

Cool off described resin, make described resin be attached to the described second airtight film, to form second panel;

Described first panel and described second panel are overlapped mutually;

Apply heat for first, second and the 3rd side of described first and second panels, seal to form one; And

Wherein said structure comprises the one or more dishes with a plurality of protrusions.

31. a method that is used to make the sack that is suitable for holding article comprises:

First chill roll is rotated with first rate, and described first chill roll comprises a plurality of chambeies that are used to form a structure;

Wherein said structure comprises the one or more dishes with a plurality of protrusions;

The first cascade roller is rotated with second speed;

The first film is incorporated into first roll gap between described first chill roll and the described first cascade roller;

Melted material is expressed to described first roll gap;

The described melted material of extruding between described first chill roll and described the first film makes described melted material fill the described a plurality of chambeies that are exposed to described first roll gap;

Cool off described melted material, to form first internal layer;

Wherein said first internal layer comprises described structure;

Wherein said first internal layer is attached to described the first film, thereby forms first panel;

Second chill roll is rotated with third speed;

The second stacked roller is rotated with the 4th speed;

Second film is incorporated into second roll gap between described second chill roll and the described second stacked roller;

Melted material is expressed to described second roll gap;

The described melted material of extruding between described second chill roll and described second film;

Cool off described melted material, to form second internal layer;

Wherein said second internal layer is attached to described second film, thereby forms second panel;

Described first panel and described second panel are overlapped mutually; And

Apply heat for the part of the periphery of described first and second panels, seal so that described first panel and second panel form one.

32. as the method for claim 31, wherein said second speed is the integral multiple of described first rate, and described the 4th speed integral multiple that is described third speed.

33. as the method for claim 31, the wherein said the first film and second film comprise at least one layer.

34. as the method for claim 33, wherein said at least one layer comprises gas impermeable material.

35. as the method for claim 34, wherein said gas impermeable material is a kind of in polyester, polyamide, ethylene-vinyl alcohol copolymer and the nylon.

36. as the method for claim 31, wherein said melted material is a polyethylene.

37. as the method for claim 31, the thickness of wherein said first internal layer is determined that by the size of described first roll gap thickness of described second internal layer is determined by the size of described second roll gap.

38. as the method for claim 31, wherein said structure forms, when described article were positioned at described dish, described article were by described a plurality of protrusion supportings.

39. as the method for claim 31, wherein said structure forms, when described article were positioned at described dish, described article were supported in the substrate top of described at least one dish.

40. a method that is used to make the sack that is suitable for holding article comprises:

Make first roller rotation with a plurality of grooves, described a plurality of grooves can determine to comprise one or more dishes of a plurality of protrusions;

Make second roller rotation of contiguous described first roller, described second roller can supply to the first film contiguous described first roller;

Melted material is applied between described first roller and the described film;

Described melted material is filled the groove of described first roller, and described melted material and film move between described first roller and second roller, has first panel of a plurality of storage tanks with formation;

Form second panel; And

Described first panel is cooperated, to form sack with described second panel.

41. the method as claim 40 also comprises:

For described film uses gas impermeable material; With

For described melted material uses heat-sealable material.

42. as the method for claim 41, wherein said first panel-shaped becomes, when described article were positioned at described dish, described article were by described a plurality of protrusion supportings.

43. as the method for claim 41, wherein said first panel-shaped becomes, when described article were positioned at described dish, described article were supported in the substrate top of described at least one dish.

44. as the method for claim 40, wherein said second panel forms with described first roller and second roller.

45. as the method for claim 40, wherein said second panel forms with described first roller and second roller, and the step that cooperates comprises described first panel is folded on described second panel.

46. as the method for claim 40, wherein said first roller comprises the peripheral surface with first, described first comprises a plurality of grooves that are used to determine comprise described one or more dishes of described a plurality of protrusions.

47. a method that is used to make the sack that is suitable for holding article comprises:

To first roll gap that is formed by first chill roll and first cascade roller, described first chill roll has a plurality of chambeies that are used to form at least one dish with the first airtight membrane supplying;

Extrusion resin makes described resin fill described first roll gap and a plurality of chambeies that are exposed to described first roll gap;

The described resin of extruding between described first chill roll and first cascade roller;

Cool off described resin, have first internal layer of described first structure and second structure with formation;

Wherein said first internal layer is attached to the described first airtight film, thereby forms first panel;

To second roll gap that is formed by second chill roll and the second stacked roller, described second chill roll has a plurality of chambeies and the protrusion that is used to form the 3rd structure with the second airtight membrane supplying;

Wherein said the 3rd structure is that another kind holds parts and insertion parts;

Extrusion resin makes described resin fill described second roll gap and a plurality of chambeies that are exposed to described second roll gap;

The described resin of extruding between described second chill roll and the second stacked roller;

Cool off described resin, have second internal layer of described the 3rd structure with formation;

Wherein said second internal layer is attached to the described first airtight film, thereby forms second panel;

Described first panel and described second panel are overlapped mutually; And

Apply heat for first, second and the 3rd side of described first and second panels.

Images