CN1777543A - Liquid-collection bag and making method - Google Patents
Liquid-collection bag and making method Download PDFInfo
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- CN1777543A CN1777543A CN 200480010972 CN200480010972A CN1777543A CN 1777543 A CN1777543 A CN 1777543A CN 200480010972 CN200480010972 CN 200480010972 CN 200480010972 A CN200480010972 A CN 200480010972A CN 1777543 A CN1777543 A CN 1777543A
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- panel
- sack
- internal layer
- roller
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Abstract
A bag for use in vacuum packaging comprises a first and second overlapping panels. A plurality of channels having a plurality of baffles is formed on one or more of the panels for evacuating air or other gases from inside the bag using suction, while preventing liquids from being drawn inside it. In one embodiment, the forming of a bag involves between cooling and laminating rolls includes feeding a gas-impermeable material to a nip between the rolls. Resin is extruded to the nip so that it fills a plurality of cavities of the cooling roll, forming an inner layer that adheres to the gas-impermeable material. The resultant sheet is folded to form the first and second panels and they are sealed to from an envelope.
Description
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 liquid-collection bag (Liquid-trapping Bag for Use in VacuumPackaging) " 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 Liquid-trapping Bagfor Use in Vacuum Packaging) that manufacturing is used for vacuum-packed liquid-collection bag " that people such as Henry Wu submitted on March 5th, 2003,138 (attorney docket No.TILA-01177US1); By the U.S. 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); And by the U.S. Patent application No.10/_ that be entitled as " method (Method for Manufacturing Liquid-trapping Bag for Use in VacuumPackaging) that manufacturing be used for vacuum-packed liquid-collection bag " of people such as Hongyu Wu in submission on March 4th, 2004, _ (attorney docket No.TILA-01177US3).
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 salable bag (Sealable Bag Having an Integrated Tray for Use in VacuumPackaging) " that people such as Henry Wu submitted on March 5th, 2003,172 (attorney docket No.TILA-01178US0) with integrated plate;
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 Tray for Use in Vacuum 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. 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 Manugscturing 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 U.S. Patent application No.10/_ that is entitled as " being used for vacuum-packed salable bag (Sealable Bag Having an Integrated Tray for Use inVacuum Packaging) " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01178US2) with integrated plate;
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 Tray for Use in Vacuum Packaging) with salable bag of integrated plate " that people such as Hongyu Wu submitted on March 4th, 2004, _ (attorney docket No.TILA-01178US3);
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 U.S. 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; And
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 overflowed 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 embossing mould to carry out embossing, forming protrusion and by the passage of the space definition 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 top view of the part of first panel that overlaps mutually with the part of second panel according to an embodiment of the invention;
Fig. 2 B is the cross sectional drawing that passes the line 2B-2B of Fig. 2 A;
Fig. 3 A-3E is the planar view by the exemplary patterns on the panel of process manufacturing shown in Figure 1 according to the embodiment of the invention; And
Fig. 4 is the transparent view of vacuum bag according to an embodiment of the invention.
The specific embodiment
Specific embodiment of the present invention is disclosed here.And should be appreciated that the disclosed embodiments only are exemplary, it can be presented as various form.Therefore, details disclosed herein should not thought restrictive, and only is as the basis of claim and is used to instruct those skilled in the art how to realize and/or utilizes basis of the present invention.
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, and wherein each panel all comprises airtight basic unit 108 and heat-sealable internal layer 106, and at least one panel has flow of liquid and intercepts protrusion and/or passage.The resin that stacked roller 102 and chill roll 104 are arranged to fusing can be extruded is incorporated between two rollers and cooling, is laminated to airtight basic unit 108 with the internal layer 106 that forms heat-sealable internal layer 106 and will be shaped.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 resin that fusing is extruded can fully cool off to form the pattern (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 generally comprises 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 be made by polyester, polyamide, ethylene-vinyl alcohol copolymer (EVOH), nylon or other material that can be heated and can be used in this manufacturing process with similar quality.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.
The pattern of constructing on the circumferential surface of chill roll 104 can comprise and is used to define a plurality of chambeies (and/or protrusion) with separate channels of diaphragm structure (baffled structure) according to an embodiment of the invention.The resin of extruding from nozzle 112 is squeezed between chill roll 104 and airtight basic unit 108, and flows in the chamber of chill roll 104.The resin quick cooling also is frozen into the pattern of expectation, is attached to airtight basic unit 108 simultaneously, thereby forms 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 other 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.
The thickness that is formed on each protrusion on the heat-sealable internal layer 106 of panel can determine that width of channel can be determined by the interval between the chamber by the degree of depth in the chamber of chill roll 104.Therefore, the specification that is used for the chamber that shape, width and the thickness of the passage of evacuation of air and/or other gas can be by changing chill roll 104 is controlled.Fig. 2 A and 2B illustrate the cross-sectional plane of two panels (along line 2B-2B) (thickness of panel is exaggerative with respect to the width of conduit wall and dividing plate) according to an embodiment of the invention.Heat-sealable internal layer 106 can be preferably the 0.5-6.0 mil at the thickness range at passage 224 places, and the thickness range at protrusion 226,228 places is preferably the 1.0-12.0 mil, and the thickness range of airtight basic unit 108 can be preferably about the 0.5-8.0 mil.The size of internal layer and basic unit is suggestiveness ground explanation, and can not to be interpreted as be restriction to the size of internal layer and basic unit.
Fig. 3 A is the planar view that is used for the pattern 320 that is formed by chill roll 104 of vacuum bag on panel, and wherein heat-sealable resin bed 106 carries out mold pressing by this way, that is, protrusion forms a plurality of passages 224 with conduit wall 226 and dividing plate 228.Dividing plate 228 can be arranged to the herringbone pattern of certain angle, make air and/or other gas (schematically illustrated) to walk around dividing plate 228 and emptying from vacuum bag, and heavier liquid particles 342 can be collected between conduit wall 226 and the dividing plate 228 by suction.Intersecting the angle and the gap between the adjacent separator 228 that form by dividing plate 228 and conduit wall 226 can determine when producing chill roll 104, with the liquid that is fit to collect.Dividing plate 228 arranges it can is repeatedly folding (multi-fold) (being shaped to determine liquid collecting container) with respect to conduit wall 226 and with respect to the difference of other dividing plate 228, and can optimize to improve the emptying of air and/or other gas 340, prevent that effectively liquid 342 from flowing out simultaneously from vacuum bag.For example, as shown in Fig. 3 A, dividing plate 228 can be arranged as, feasible entrance angle by the access portal between the dividing plate 228 is strong (severe), and darker relatively, thereby stop flow of liquid by making in liquid 342 turning containers and collecting a large amount of liquid 342 by the container that dividing plate 228 forms.
As mentioned above, those of ordinary skill in the art can understand and is used to stop the multiple different baffle arrangement of liquid 342 with respect to the discharge of air and/or 340 emptyings of other gas.Shown in Fig. 3 B, in other embodiments, structure pattern 320 on the circumferential surface of chill roll 104 goes out protrusion with rear panel is moldable, thereby forms a plurality of passages 224 of being determined by " V " shape dividing plate 228, and need not molded conduit wall.In other embodiments, conduit wall 226 can extend on the length of panel substantially, and only portion of channel length vicinity has the emptying opening of dividing plate 228.
As shown in Fig. 3 C, in other embodiments, structure pattern 320 on the circumferential surface of chill roll 104, be shaped as a plurality of protrusions with rear panel is moldable with passage 224 of conduit wall 226 and dividing plate 228, wherein each dividing plate 228 crosses most of width extension of passage 224, thereby determines that between dividing plate 228 and conduit wall 226 one is used for the path of air-out and/or other gas 340.As shown in Fig. 3 D, dividing plate 228 can be parabolical or circle selectively, to be formed for gathering the pouch of liquid particles 342.
Fig. 3 E is illustrated in another embodiment of the pattern 320 of constructing on the circumferential surface of chill roll 104, and subsequently, panel can comprise along the part of panel length or panel to be arranged to catch the parabola shaped of liquid particles 342 or " U " shape dividing plate 228 as fish scale.U-shaped dividing plate 228 also can comprise the slit 330 in the paddy (trough) of U-shaped dividing plate 228, and slit 330 is enough little of to improve flowing of air and/or other gas 340, stops many liquid particles 342 simultaneously.In other embodiments, dividing plate 228 can be a parabola in various degree.Those of ordinary skill in the art can understand, and is used to stop the multiple different partition shape of liquid phase for the discharge of air or other gas emptying.
Be to be understood that, it is favourable collecting liquid in dividing plate in being formed at sack or the container, this is because this structure stops and prevents that liquid is inhaled into vacuum pump or for example in U.S. Patent No. 4,941, in 310 (here that this patent is incorporated by reference) in the aspirator of disclosed vacuum seal instrument.
Fig. 4 illustrates and is used for vacuum-packed sack according to an embodiment of the invention.Vacuum bag 450 comprises first panel 452 and second panel 454 of mutual overlapping.According to the foregoing description, passage 224 is formed at least one panel 452,454.The heat-sealable internal layer 106 and the airtight basic unit 108 of first and second panels 452,454 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, the layer 106 that resin is made 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 452,454 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 450, air and/or other gas can emptying from sack 450, 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, contacts thereby activate heat-sealable internal layer 106 and make them pass through heat, thereby combines.
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.Should be appreciated that 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 (59)
1. sack that is suitable for holding article comprises:
First panel that comprises a plurality of protrusions;
Second panel; And
Described first panel and second panel are fixed together to form described sack.
2. 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 a plurality of projectioies
Thing; And
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;
Wherein when described first internal layer contacted with described second internal layer, described a plurality of protrusion liquid barrier flow through described inlet.
3. sack as claimed in claim 2, wherein said first skin and second skin comprise gas impermeable material.
4. sack as claimed in claim 3, wherein said gas impermeable material are a kind of in polyester, polyamide, ethylene-vinyl alcohol copolymer and the nylon.
5. sack as claimed in claim 2, wherein said first internal layer and second internal layer comprise thermoplastic base resin.
6. sack as claimed in claim 5, wherein said thermoplastic base resin is a polyethylene.
7. sack as claimed in claim 2, wherein said a plurality of protrusions have been determined a plurality of passages.
8. sack as claimed in claim 7, wherein said a plurality of passages comprise a plurality of dividing plates.
9. sack as claimed in claim 8, wherein said a plurality of baffle arrangement become herringbone pattern.
10. sack as claimed in claim 8, wherein said a plurality of dividing plates are formed for collecting a plurality of pouches of liquid particles.
11. sack as claimed in claim 2, wherein said a plurality of protrusions have been determined a plurality of dividing plates.
12. as the sack of claim 11, wherein said a plurality of dividing plates are formed for collecting a plurality of pouches of liquid particles.
13. sack as claimed in claim 8, wherein said a plurality of dividing plates comprise the U-shaped shape.
14. as the sack of claim 13, wherein said a plurality of dividing plates are included in the slit in the paddy of U-shaped shape, described slit is sized to make gas can pass through this slit.
15. 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 has veining
Exposed surface;
Wherein when the exposed surface resistance of gas described veining during by heat-sealable opening emptying
Every flow of liquid; And
Second panel, it comprises:
Second airtight layer; With
Be laminated to second internal layer of described second airtight layer;
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.
16. a heat-sealable sack that is suitable for holding article comprises:
First panel, it comprises:
First airtight layer;
At least one first interlayer that is connected with described first airtight layer; With
Be laminated to first internal layer of described at least one first interlayer, described first internal layer has line
The exposed surface of physics and chemistry;
Wherein when the exposed surface resistance of gas described veining during by heat-sealable opening emptying
Every flow of liquid; And
Second panel, it comprises:
Second airtight layer;
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 described second internal layer, and described sealing comprises the heat-sealable opening that is used for vent gas.
17. as the sack of claim 16, wherein said first airtight layer and second airtight layer comprise a kind of in polyester, polyamide, ethylene-vinyl alcohol copolymer and the nylon.
18. as the sack of claim 16, wherein said first internal layer and second internal layer comprise thermoplastic base resin.
19. as the sack of claim 18, wherein said thermoplastic base resin is a polyethylene.
20. as the sack of claim 16, the exposed surface of wherein said veining comprises a plurality of passages.
21. as the sack of claim 20, the exposed surface of wherein said veining also comprises a plurality of dividing plates.
22. as the sack of claim 21, wherein said a plurality of baffle arrangement become herringbone pattern.
23. as the sack of claim 21, wherein said a plurality of dividing plates are formed for collecting a plurality of pouches of liquid particles.
24. as the sack of claim 16, the exposed surface of wherein said veining comprises a plurality of dividing plates.
25. as the sack of claim 24, wherein said a plurality of dividing plates are formed for collecting a plurality of pouches of liquid particles.
26. as the sack of claim 24, wherein said a plurality of dividing plates comprise the U-shaped shape.
27. as the sack of claim 26, wherein said a plurality of dividing plates are included in the slit in the paddy of U-shaped shape, described slit is sized to make air can pass through this slit.
28. a sack that is suitable for holding article comprises:
First panel, described first panel determine to be suitable for collecting a plurality of storage tanks and a plurality of passages of walking around described storage tank of liquid, and described passage is suitable for allowing gas to pass through;
Second panel; And
Described first panel and second panel are fixed together to form described sack.
29. a sack that is suitable for holding article comprises:
First panel, described first panel determines to be suitable for collecting a plurality of storage tanks of liquid, and described storage tank forms and has along the first wall of described bag length extension and a plurality of second walls that extend along the direction of crossing described bag length;
Second panel; And
Described first panel and second panel are fixed together to form described sack.
30. one kind is used to form the system that comprises the sack that is formed on the three-dimensional structure at least one panel, comprises:
Chill roll with a plurality of chambeies that are used to form one or more structures;
Wherein said one or more structure comprises a plurality of storage tanks that are suitable for collecting liquid;
Stacked roller;
Back lining materials; With
Can flow in described one or more chamber to form the flowable materials of described one or more structures, described flowable materials is attached on the described back lining materials.
31. a method that is formed for the panel of 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 plurality of protrusions;
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.
32. 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;
Wherein said structure comprises a plurality of protrusions;
Folding described panel overlaps mutually the first of this panel and the second portion of this panel; With
Apply heat for first, second and the 3rd side of described first and second parts, seal to form one.
33. a method that is used to make the sack that is suitable for holding article comprises:
To first roll gap between first chill roll and the 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;
Molten resin is expressed into described first roll gap;
The described molten resin of extruding between described first chill roll and the first airtight film is so that described molten resin is filled a plurality of chambeies that are exposed to described first roll gap;
Cool off described resin, make described resin form described structure and be attached to described airtight film, to form first panel;
Wherein said structure comprises a plurality of protrusions;
With the second airtight membrane supplying to second roll gap between second chill roll and the second stacked roller;
Molten resin is expressed into described second roll gap;
The described molten resin of extruding between described second chill roll and the second airtight film;
Cool off described molten resin, to form second internal layer;
Wherein said second internal layer is attached to the described second 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, seal so that described first panel and second panel form one.
34. 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 kind of or whole in a plurality of chambeies of being used to form the structure with a plurality of passages and a plurality of protrusion, and described a plurality of passages are determined by a plurality of dividing plates at least in part;
The first cascade roller is rotated with second speed;
The first airtight film that will have at least one layer is incorporated into first roll gap between described first chill roll and the described first cascade roller;
Molten resin is expressed to described first roll gap;
The described molten resin of extruding between described first chill roll and the described first airtight film makes described molten resin fill the described a plurality of chambeies that are exposed to described first roll gap;
Cool off described molten resin, to form first internal layer;
Wherein said first internal layer comprises described structure;
Wherein said first internal layer is attached to the described first airtight film, thereby forms first panel;
Second chill roll is rotated with third speed;
The second stacked roller is rotated with the 4th speed;
The second airtight film that will have at least one layer is incorporated into second roll gap between described second chill roll and the described second stacked roller;
Molten resin is expressed to described second roll gap;
The described molten resin of extruding between described second chill roll and the described second airtight film;
Cool off described molten resin, to form second internal layer;
Wherein said second internal layer is attached to the described second airtight 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.
35. as the method for claim 34, wherein said second speed is the integral multiple of described first rate, and described the 4th speed integral multiple that is described third speed.
36. as the method for claim 34, the wherein said first airtight film and the second airtight film comprise at least one layer.
37. as the method for claim 36, wherein said at least one layer is a kind of in polyester, polyamide, ethylene-vinyl alcohol copolymer and the nylon.
38. as the method for claim 34, wherein said molten resin is a polyethylene.
39. as the method for claim 34, 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.
40. as the method for claim 34, wherein said a plurality of protrusions are a plurality of dividing plates.
41. as the method for claim 34, wherein said a plurality of protrusions are a plurality of containers.
42. as the method for claim 34, wherein said a plurality of protrusions are a plurality of grabbers.
43. a manufacturing is suitable for holding the method for the sack of article, comprising:
Make first roller rotation with a plurality of grooves, described a plurality of grooves can be determined a plurality of storage tanks;
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.
44. the method as claim 43 also comprises:
For described film uses gas impermeable material; With
For described melted material uses heat-sealable material.
45. as the method for claim 43, wherein forming described a plurality of storage tank is to form a plurality of dividing plates.
46. as the method for claim 43, wherein forming described a plurality of storage tank is to form a plurality of containers.
47. as the method for claim 43, wherein forming described a plurality of storage tank is to form a plurality of grabbers.
48. as the method for claim 43, wherein said second panel forms with described first roller and second roller.
49. as the method for claim 43, wherein said second panel forms with described first roller and second roller, and the step of described cooperation comprises described first panel is folded on described second panel.
50. as the method for claim 43, wherein said first roller comprises the peripheral surface with first and second portion, described first comprises a plurality of grooves that are used for determining a plurality of storage tanks, and described second portion does not have a plurality of grooves.
51. as the method for claim 43, wherein said first roller comprises that available described melted material filling is to be formed on other a plurality of grooves of the passage that extends on the described film length.
52. as the method for claim 43, comprise forming described storage tank that described storage tank partly has the wall that is parallel to described film length extension and partly has the wall that crosses described film length extension.
53. as the method for claim 43, comprise from described a plurality of grooves forming described storage tank that some in described a plurality of grooves are parallel to described film length extends, other in described a plurality of grooves cross described film length and extend.
54. method as claim 43, comprise from described a plurality of grooves and form described storage tank, in described a plurality of groove some are extended around the hand of rotation of the peripheral surface of described first roller, and other in described a plurality of grooves extend around the direction of the hand of rotation that crosses described peripheral surface.
55. as the method for claim 43, wherein forming described a plurality of storage tank is to form the U-shaped storage tank.
56. as the method for claim 43, wherein forming described a plurality of storage tank is to form the V-arrangement storage tank.
57. as the method for claim 43, wherein forming described a plurality of storage tank is to form L shaped storage tank.
58. as the method for claim 43, wherein forming described a plurality of storage tank is to form a plurality of liquid collecting shapes.
59. as the method for claim 43, wherein said a plurality of storage tanks form a path, so that gas flows through described path.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45216803P | 2003-03-05 | 2003-03-05 | |
| US60/452,168 | 2003-03-05 | ||
| US60/452,138 | 2003-03-05 | ||
| US10/795,149 | 2004-03-04 | ||
| US10/794,349 | 2004-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1777543A true CN1777543A (en) | 2006-05-24 |
Family
ID=36766619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480010972 Pending CN1777543A (en) | 2003-03-05 | 2004-03-05 | Liquid-collection bag and making method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1777543A (en) |
-
2004
- 2004-03-05 CN CN 200480010972 patent/CN1777543A/en active Pending
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