CN102695658A - A packaging for use in vacuum packaging - Google Patents

A packaging for use in vacuum packaging Download PDF

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Publication number
CN102695658A
CN102695658A CN2010800515934A CN201080051593A CN102695658A CN 102695658 A CN102695658 A CN 102695658A CN 2010800515934 A CN2010800515934 A CN 2010800515934A CN 201080051593 A CN201080051593 A CN 201080051593A CN 102695658 A CN102695658 A CN 102695658A
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CN
China
Prior art keywords
interlayer
packaging bag
packing
vacuum
packaging
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Granted
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CN2010800515934A
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Chinese (zh)
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CN102695658B (en
Inventor
彭文耀
彭文志
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Sin Sheng Kuang M Sdn Bhd
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Sin Sheng Kuang M Sdn Bhd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2023—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/75—Printability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2275/00—Details of sheets, wrappers or bags
    • B65D2275/02—Sheets wrappers or bags provided with protective or puncture resistant patches, specially adapted for meat on the bone, e.g. patch bags

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Vacuum Packaging (AREA)

Abstract

A packaging (100) for use in a vacuum packaging process comprises a first (110) and a second flat panel (120) sealed along two opposite lateral edges and forming an enclosure (190) for an article to be packaged; a third (130) and a fourth flat panel (140) superimposed on and sealed to two opposite lateral edges of the first (110) and second flat panels (120) forming a puncture resistant outer surface for the packaging (100); and a top (170) and a bottom opening (180) for accessing the enclosure (190) and formed by unsealed portions of the edges of the panels; characterized in that the third (130) and fourth panels (140) are joined to the first (110) and second panels (120) at discrete points (150); whereby during the vacuum packaging process, air can be withdrawn from the enclosure (190) and from recess between the first (110) and third flat panel (130) and second (120) and fourth flat panels (140) before the packaging finally sealed, whereby during the vacuum packaging process, the first (110) and second panels (120) wrap and enclose the object to provide a first layer of packing for the object and simultaneously pull along the third (130) and fourth panels (140) to provide a second layer of packing for the object, whereby the differential packing created by the first and second layers of packing creates a enhanced puncture resistant effects to the packaging.

Description

A kind ofly be used for vacuum-packed packaging bag
Technical field
The present invention relates to a kind of be used for vacuum-packed process anti-and pierce through packaging bag.More particularly, the present invention relates to a kind of be used for vacuum-packed process anti-and pierce through packaging bag, be applicable to that packing has the object of sharp keen wedge angle.
Background technology
Usually the food that processes can be loaded in the packing, with convenient transportation and food and extend holding time.As everyone knows, perhaps do not have if the oxygen content in the food Package is minimum, the microbial decomposition activity of food can reduce dramatically.Vacuum packaging is widely used in the food Package, to reduce oxygen content.In a vacuum-packed process, air is sucking-off from packaging bag, and packaging bag forms vacuum packaging with the food that is loaded into.Sack is sealed subsequently, environment that is close to vacuum of the inner formation of packaging bag.Be fit to the vacuum-packed food variety that stores and comprise the food object that some are perishable, humidity is relatively low.Vacuum-packed packaging bag is because the high suction in vacuum-packed process can be wrapped in the object in the bag tightly, and after the packaging bag sealing, bar pressure can further compress packaging bag and package object.But, also there are some problems in vacuum packaging.Run into when containing the package object of sharp keen wedge angle such as this types such as paddy, wheat, lobster, shell seafood, packaging bag take place sometimes damaged with pierce through.These objects that contain sharp keen wedge angle may be pricked in vacuum-packed process and wear packaging bag.Sometimes, in transportation, these packings are subjected to impact and also can cause and pierce through.In order to address this problem, people adopt the method for multilayer film packing, but this method can not be entirely satisfactory, because these sharp-pointed objects sometimes still can pierce through the blister-pack layer of multilayer.In order to address these problems, we launch research, develop a kind of packaging bag that is applied to vacuum-packed process, and better anti-piercing through and shock proof performance arranged, and can prolong the holding time of perishables simultaneously again.
U.S. Patent number 6799680 has proposed a kind of vacuum sealed package, comprises the first and second impermeable interlayers, and the surfaces externally and internally of each interlayer is identical, and three adjacent bandings are closed, and forms the inner space.The inside face of first interlayer and second interlayer has first and second channel networks respectively, and both are continuous mutually, when two interlayers link together, can form a powerful interconnecting channels network.The channel network that links to each other can be with air exhaustion in packaging process.For first and second channel networks are linked to each other, these passages need form certain included angle and arrange with the long limit of interlayer, when such second interlayer overlaps on first interlayer, can form interconnected channel network.The purpose of this invention provides a kind of heat sealable packaging bag, is used for anoxybiotic or vacuum packaging, and the interconnecting channels network that forms in the packing allows gas to discharge from package interior.
Another US Pat 7220053 has proposed to be used for vacuum-packed flexible bags.This flexible bags comprises an inner bag and one and is wrapped in outer outer bag, and inner bag is made up of the interlayer that is printed on decorative pattern, and optimal case is to adopt at least four interlayers, when an interlayer that is printed on decorative pattern covers on another interlayer, forms interconnected pipeline.Similar with the above-mentioned US6799680 patent of mentioning, the annulus of several projections is arranged on the interlayer of inner bag of the present invention, when outer bag covered on the inner bag, the passage of going up the straw shape with outer bag linked to each other, and forms interconnected passage.The present invention is intended to propose a kind of packing that are used on the vacuum packaging mechanical, and the passage on it between ectonexine packing makes the air at package interior to pump out with vacuum pump efficiently.
The common ground of above-mentioned two technology is through interconnected Channel Design, promotes the oxygen sucking-off property in the vacuum-packed process, but does not improve the anti-performance that pierces through of packaging bag.In addition, above-mentionedly mention that the packaging bag productive costs of two inventions is higher, because all interlayers all need carve passage, so that form interconnected channel network in the follow-up covering process.And in the present invention, do not need interconnected passage.
Summary of the invention
The purpose of this invention is to provide a kind of packaging bag that is used for vacuum-packed process.Particularly have the packaging bag of higher anti-piercing through property and impact resistance.
Another target of the present invention is on the outside face of packaging bag, to add anaglyph, makes it extra aesthetic.This can reach through charging into air in certain amount in the fully enclosed space between the interlayer; The place of these anaglyphs need just complete before vacuum-packed process; Air is drawn out of in bag like this, forms in the process of vacuum, and the air at embossment place still can maintain between the interlayer.
The present invention can satisfy above-mentioned target.Optimum implementation of the present invention comprises first (110) and the second plane interlayer (120), and they seal along two opposite external side edges, and the confined space (190) in the middle of forming comes article of packing; The the 3rd (130) and Siping City's face interlayer (140) overlap two opposite external side edges on first (110) and the second plane interlayer (120), seal, form one and resist the outside face that pierces through in that packing (100) is outer; A top (170) and a bottom opening (180) form airtight inner space (190) with interlayer osed top edge; Be characterized in that the the 3rd (130) and the 4th interlayer (140) is connected on first (110) and second interlayer (120) through some discrete points (150); In vacuum-packed process; Air in the inner space (190) and the first (110) and the 3rd plane interlayer (130), second (120) and Siping City's face interlayer (140) between the slit between air aspirated out; Sealed at last up to packing; First (110) and second interlayer (120) gets up the article sealed envelope; For these article provide the packing of ground floor, spur the the 3rd (130) and the 4th interlayer (140) simultaneously for article provide overpack, strengthen anti-the piercing through property of packing through the difference packing effect of ground floor and overpack.
According to an embodiment, first (110) and the second plane interlayer (120) is two faces of a long and flat tubular body.Similarly, the 3rd (130) and Siping City's face interlayer (140) also can make also i.e. two two faces that the plane interlayer is a long and flat tubular body in an identical manner.
In the packaging process according to an embodiment, the packaging bag in case the article that need store are packed into, the opening of packaging bag top and/or bottom is closed in vacuum-packed process, possibly carry out next step operation afterwards and improve the derivation packing.
Another aspect of the present invention is that first and second interlayers use low density polyethylene (LDPE), linear low density polyethylene, medium density polyethylene material to process, and other has bubble-tight thermoplastic material or other film article of deriving to process and third and fourth interlayer uses nylon etc.
Another aspect of the present invention is that the 3rd or the 4th interlayer outside face in packaging bag causes anaglyph, to reach extra aesthetic.The method that realizes anaglyph is: before vacuum-packed process; When the 3rd and/or the 4th interlayer is sealed on first and/or second interlayer; Go into air in certain amount between interlayer in the sealing earlier of the position of design anaglyph, like this, when vacuum-packed process air is aspirated; At the anaglyph place, air still can be retained between interlayer.
Description of drawings
Fig. 1 is the transparent view of one embodiment of the invention;
Fig. 2 is the cross sectional view of embodiment shown in Figure 1; And
Fig. 3 has showed the different distributions form of discrete point (150) on the packing outside face.
The specific embodiment
A professional person should be not difficult to recognize that the present invention except the characteristics of self, can realize target and advantage that preceding text are mentioned.This embodiment described here is not as the restriction to the present invention program's scope.
The present invention comprises a packaging bag (100) that is used for vacuum-packed process, and it comprises first (110) and the second plane interlayer (120), and the opposite external side edge is sealed along both sides, is formed for adorning the inner space (190) of article; The the 3rd (130) and Siping City's face interlayer (140) overlap two relative outer ledge back seaies of first (110) and the second plane interlayer (120), form the anti-outside face that pierces through of packaging bag (100); The top (170) and the bottom opening (180) that are used to be communicated with inner space (190) are formed by the unencapsulated part in interlayer edge; Be characterized in that the 3rd (130) goes up at discrete point (150) with the 4th interlayer (140) and to link to each other with second interlayer (120) with first (110); Like this; In vacuum-packed process; Air in the inner space (190) and the first (110) and the 3rd plane interlayer (130), second (120) and Siping City's face interlayer (140) between the slit between air aspirated out; Sealed at last up to packing, first (110) and second interlayer (120) gets up the article sealed envelope, and the packing of ground floor is provided for these article; Spur the the 3rd (130) and the 4th interlayer (140) simultaneously for article provide overpack, strengthen anti-the piercing through property of packing through the difference packing property of ground floor and overpack.
In the present invention, a packaging bag comprises first (110), second the (120), the 3rd the (130) and the 4th interlayer (140), and they link together on opposite external side edge (111,112,121,122).The the 3rd (130) and the 4th interlayer (140) overlaps on first (110) and second interlayer (120).The inside face of the the 3rd (130) and the 4th interlayer (140) is close to the outside face of first (110) and second interlayer (120) through the mode of a kind of predetermined mode or discrete distribution point.First (110) and second interlayer (120) can form one and be used for article are placed on interior inner space (190).Remaining two not the relative outer ledge of bonded assembly formed top (170) and the bottom opening (180) that leads to inner space (190).In vacuum-packed process, first and second interlayers get up the article sealed envelope, and the packing of ground floor is provided for these article.In vacuum-packed process, it is that article provide overpack that first and second interlayers spur third and fourth interlayer simultaneously.The effect of ground floor packing is the sharp edges rust with the wedge angle article, and for buffer action is played in overpack, and overpack is to be sealed in interior article to play the enhanced leaktightness effect.Strengthen anti-the piercing through property and the impact resistance of packing through the difference packing property of ground floor and overpack.
Optimal case is that first (110), second the (120), the 3rd the (130) and the 4th interlayer (140) links together on opposite external side edge (111,112,121,122).In addition, first (110) and the second plane interlayer (120) can be two faces of a long and flat tubular body, rather than by two independently the plane interlayer be glued together.Equally, the 3rd (130) and Siping City's face interlayer (140) also can make in an identical manner, that is to say two faces of a long and flat tubular body.
According to optimum implementation, first (110) and the second flexible interlayer (120) uses materials such as low density polyethylene (LDPE), linear low density polyethylene, medium density polyethylene to process.In optimum implementation,, these two flexible interlayers are coupled together at two relative outer ledges through heat-sealing or bonding.In addition, the inside face of interlayer outer ledge interconnects, and forms inner space (190).Of preamble; Two interlayers can be formed by a long and flat tubular body, and one has enough big surperficial fexible film to fold up, and cooresponding free edge connects through heat-sealing or bonding mode; Form inner space (190), in being used for package object is stored in.Not bonded assembly edge or unsealed part, just the top and the bottom margin of bonded assembly first and second interlayers have formed top (170) and bottom opening (180).The packaging bag in case object is packed into, top (170) and bottom opening (180) seal in vacuum-packed process.In another optimum implementation; An opening is caught the bag end of object earlier with formation by sealing; Object then gets into packaging bag from another also unencapsulated opening; Afterwards, the object of packaging bag (100) and the inside gets into vacuum-packed process together, carries out vacuum draw in the time of with unencapsulated closure of openings.
In optimum implementation, the 3rd (130) has bubble-tight thermoplastic material or other film article of deriving to process with the 4th flexible interlayer (140) by nylon or other.Preferred version is that the size of third and fourth interlayer is general quite perhaps bigger than them with the first and second flexible interlayers, covers the outside face of first (110) and the second flexible interlayer (120) basically.Preferred version is that the relative outer ledge of the third and fourth flexible interlayer is through heat-sealing or bonding mode, the relative outer ledge of the first and second bonding flexible interlayers (111,112,121,122) in the connection.The the 3rd (130) and the 4th flexible interlayer (140) further separately through the mode of heat-sealing or applying, links to each other with the second flexible interlayer (120) with first (110), according to the discrete point (150) of design-calculated arrangement mode formation in advance.Preferred version is that discrete point (150) extends along the parallel direction of bonding relative outer ledge (111,112,121,122) to be opened.In addition, discrete point can adopt different forms and shape, and is as shown in Figure 3.It is pointed out that in the present invention discrete point (150) is absolutely necessary for the difference packing effect that in vacuum-packed process, realizes expectation.Usually; The ground floor of packing is wrapped in object to be packaged, and directly contact with it, so this one deck can be with the sharp edges passivation of any package object; The second layer that wraps in the outside has subsequently further been strengthened the packing effect of ground floor, has stoped sharp edges to pierce through the packing ground floor.
As everyone knows, bilayer or multi-layer thermoplastic material interlayer have lower modulus of creep through the thermoplastic film that the heating power lamination obtains, stress (such as, receive the pressure of food item sharp edges) influence under can deform.For fear of such distortion, the present invention adopts the two layers of thermoplastic interlayer, couples together with predetermined arrangement mode through some discrete points (150), and does not adopt thermoplastic laminate to make packaging bag (100).The packaging bag (100) made from mode of the present invention demonstrates higher anti-piercing through property and crush resistance.In vacuum-packed process, first (110) and the second flexible interlayer (120) of internal layer tightly are wrapped in outside the object under atmospheric effect.Simultaneously, first and second interlayers pull to object through discrete point with the the 3rd (130) and the 4th flexible interlayer (140).The internal layer packaging that is formed by first and second interlayers forms the ground floor packing that wraps in outside the object, has strengthened internal layer packaging by the outer packaging that third and fourth interlayer forms simultaneously, makes the sharp edges of object can not pierce through internal layer packaging.Through the difference manner of packing of ground floor and overpack, make the anti-performance that pierces through of packaging bag strengthen.The internal layer packaging that is formed by first (110) and second interlayer (120), the outer packaging that the the 3rd (130) and the 4th interlayer (140) forms are wrapped in outside the object, and when forming the packing of strong anti-piercing through property, the discrete point among the present invention (150) also forms simultaneously.Might be in one embodiment, internal layer packaging and outer packaging can form continuous conduit (160) when involution, as depicted in figs. 1 and 2.
According to optimum implementation, the outside face of the the 3rd (130) and/or the 4th flexible interlayer (140) can stamp trade mark or other pattern, to reach aesthetic or the brand show purpose about packing.The third and fourth flexible interlayer outside face is printed on the local of trade mark or pattern even can adopts three-dimensional anaglyph.In order to cause anaglyph, the part of the the 3rd (130) and/or the 4th interlayer (140) need be enclosed in portion of air wherein in embossment region when fitting with first and/or second interlayer.Contain airtight air in interior embossment region in vacuum-packed process, can not receive the pull of vacuum effect.Optimal case is that the work that air is enclosed in embossment region should be accomplished before vacuum-packed process.
Optimum implementation of the present invention is described according to accompanying drawing, wherein similar Ref. No. represent identical or function on similar unit.Though concrete structural arrangement here has been discussed, has been it is pointed out that this only is for illustrative purposes.The professional person of this respect can understand, can use other structure and layout, and not depart from the present invention.

Claims (7)

1. packaging bag (100) that is used for vacuum-packed process, it comprises:
One first (110) and one second plane interlayer (120), it seals along two opposite external side edges, is formed for the inner space (190) of connection with wrapping of piece;
The the 3rd (130) and Siping City's face interlayer (140), it is overlapping and be sealed on two opposite external side edges of first (110) and the second plane interlayer (120), for packaging bag (100) forms one the anti-outside face that pierces through function is arranged; And
A top (170) and a bottom opening (180) that leads to inner space (190), it is formed by the unencapsulated marginal portion of interlayer;
It is characterized in that the 3rd (130) links to each other with second interlayer (120) with first (110) through a series of discrete point (150) with the 4th interlayer (140);
In this way, in vacuum-packed process, the air in the air in inner space (190), the first (110) and the 3rd plane interlayer (130) gap, second (120) and Siping City's face interlayer (140) gap in air by sucking-off after; Packaging bag is final encapsulation; First (110) and second interlayer (120) is wrapped in outside the object, forms the ground floor of packaging bag, simultaneously; Spur the 3rd (130) and form the second layer of packaging bag with the 4th interlayer (140)
Through the difference manner of packing that ground floor and overpack form, strengthened anti-the piercing through property of packing.
2. a kind of packaging bag as claimed in claim 1 (100) is characterized in that, said first (110) and the second plane interlayer (120) is the two sides of a long and flat tubular body.
3. a kind of packaging bag as claimed in claim 1 (100) is characterized in that, the said the 3rd (130) and Siping City's face interlayer (140) be the two sides of a long and flat tubular body.
4. according to claim 1 or claim 2 a kind of packaging bag (100) is characterized in that, said first (110) and second interlayer (120) uses low density polyethylene (LDPE), medium density polyethylene or polypropylene material to process.
5. according to claim 1 or claim 2 a kind of packaging bag (100) is characterized in that, the said the 3rd (130) and the 4th interlayer (140) uses nylon to process.
6. according to claim 1 or claim 2 a kind of packaging bag (100) is characterized in that the said the 3rd (130) and the 4th interlayer (140) is connected on first (110) and second interlayer (120) through heat-sealable way.
7. according to claim 1 or claim 2 a kind of packaging bag (100) is characterized in that, said opposite external side edge connects through heat-sealable way.
CN201080051593.4A 2009-09-18 2010-09-17 A kind of for vacuum-packed packaging bag Active CN102695658B (en)

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MYPI20093914A MY160086A (en) 2009-09-18 2009-09-18 A packaging for use in vacuum packaging
PCT/MY2010/000173 WO2011034415A1 (en) 2009-09-18 2010-09-17 A packaging for use in vacuum packaging

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KR102037511B1 (en) * 2018-11-26 2019-10-31 강성준 Portable vacuum film having colling insulation and Vacuum packing method using it
CN112004662A (en) * 2018-01-12 2020-11-27 希悦尔公司 On-demand inflatable mailer and associated method
WO2022054105A1 (en) * 2020-09-14 2022-03-17 Huhtamaki Ppl Limited A laminate for a flexible package

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CN107640426A (en) * 2017-10-11 2018-01-30 上海出版印刷高等专科学校 Packaging bag
CN112004662A (en) * 2018-01-12 2020-11-27 希悦尔公司 On-demand inflatable mailer and associated method
CN112004662B (en) * 2018-01-12 2022-09-30 希悦尔公司 On-demand inflatable mailer and associated method
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WO2022054105A1 (en) * 2020-09-14 2022-03-17 Huhtamaki Ppl Limited A laminate for a flexible package

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WO2011034415A1 (en) 2011-03-24
MY160086A (en) 2017-02-16

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