CN110816007A - Composite film for agricultural packaging material - Google Patents

Composite film for agricultural packaging material Download PDF

Info

Publication number
CN110816007A
CN110816007A CN201810913853.2A CN201810913853A CN110816007A CN 110816007 A CN110816007 A CN 110816007A CN 201810913853 A CN201810913853 A CN 201810913853A CN 110816007 A CN110816007 A CN 110816007A
Authority
CN
China
Prior art keywords
layer
heat
film
composite film
breathable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810913853.2A
Other languages
Chinese (zh)
Inventor
侍晓容
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Qiushi Plastic Industry Co Ltd
Original Assignee
Jiangsu Qiushi Plastic Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Qiushi Plastic Industry Co Ltd filed Critical Jiangsu Qiushi Plastic Industry Co Ltd
Priority to CN201810913853.2A priority Critical patent/CN110816007A/en
Publication of CN110816007A publication Critical patent/CN110816007A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • 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
    • 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
    • B32B3/02—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 features of form at particular places, e.g. in edge regions
    • B32B3/06—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 features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • 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
    • B32B2307/306—Resistant to heat
    • 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
    • B32B2307/54—Yield strength; Tensile strength
    • 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
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant
    • 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
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—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
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a composite film for an agricultural packaging material, which comprises a base film, wherein an upper strengthening layer and a lower strengthening layer are respectively arranged on the upper side and the lower side of the base film, an upper heat-resistant layer and a lower heat-resistant layer are respectively arranged on the upper side of the upper strengthening layer and the lower side of the lower strengthening layer, an upper breathable layer and a lower breathable layer are respectively arranged on the upper side of the upper heat-resistant layer and the lower side of the lower heat-resistant layer, and an upper hydrophobic layer and a lower hydrophobic layer are respectively arranged on the upper side of the upper breathable layer and the lower side of the lower breathable layer. According to the invention, the upper strengthening layer and the lower strengthening layer are arranged on the upper side and the lower side of the base layer film, so that the strength of the base layer film can be enhanced, and the tearing resistance of the composite film is enhanced; the upper heat-resistant layer and the lower heat-resistant layer can enhance the heat resistance of the composite film, so that the composite film can resist high temperature, and the service life of the composite film is prolonged; the cooperation of upper hydrophobic layer and lower hydrophobic layer can make the complex film can be waterproof to play fine save and protect agricultural product's effect.

Description

Composite film for agricultural packaging material
Technical Field
The invention relates to the technical field of composite film equipment, in particular to a composite film for an agricultural packaging material.
Background
The agricultural product package is to adopt certain container or material to protect and decorate the agricultural product or agricultural product processing product that will enter or have entered the circulation field, and the agricultural product package is the important condition of agricultural product commodity circulation, and in the circulation in-process, agricultural products such as grain, meat, eggs, fruit, tealeaves, honey, etc. can't transport, store, keep and sell without packing, reach the consumer in hand, also be convenient for the application of packaging machinery, realize the factory ization, the automation of agricultural product package.
The existing packaging film for packaging agricultural products is often made of Polyhydroxyalkanoate (PHA), Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), Polycarbonate (PC) and the like, and the single packaging material cannot play a good role in preserving and protecting the agricultural products.
Disclosure of Invention
The invention aims to solve the problem that the existing packaging film for packaging agricultural products in the prior art is often made of Polyhydroxyalkanoate (PHA), Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), Polycarbonate (PC) and the like, and the single packaging material cannot play a good role in preserving and protecting the agricultural products, and provides a composite film for the agricultural packaging material.
In order to achieve the purpose, the invention adopts the following technical scheme:
the composite membrane for the agricultural packaging material comprises a base membrane, wherein an upper strengthening layer and a lower strengthening layer are respectively arranged on the upper side and the lower side of the base membrane, an upper heat-resistant layer and a lower heat-resistant layer are respectively arranged on the upper side of the upper strengthening layer and the lower side of the lower strengthening layer, an upper breathable layer and a lower breathable layer are respectively arranged on the upper side of the upper heat-resistant layer and the lower side of the lower heat-resistant layer, and an upper hydrophobic layer and a lower hydrophobic layer are respectively arranged on the upper side of the upper breathable layer and the lower side of the lower breathable layer.
Preferably, the lower side of the upper hydrophobic layer is fixedly connected with a plurality of upper convex blocks which are arranged at equal intervals, the upper breathable layer is provided with an upper groove corresponding to the upper convex blocks, the upper side of the lower hydrophobic layer is fixedly connected with a plurality of lower convex blocks which are arranged at equal intervals, and the lower side of the lower breathable layer is provided with a lower groove corresponding to the lower convex blocks.
Preferably, the upper side of the upper reinforcing layer is fixedly connected with a plurality of upper corrugation bulges, the lower side of the upper heat-resistant layer is provided with an upper clamping groove corresponding to the upper corrugation bulges, the lower side of the lower reinforcing layer is fixedly connected with a plurality of lower corrugation bulges, and the upper side of the lower heat-resistant layer is provided with a lower clamping groove corresponding to the lower corrugation bulges.
Preferably, the base layer film, the upper strengthening layer, the lower strengthening layer, the upper heat-resistant layer, the lower heat-resistant layer, the upper breathable layer, the lower breathable layer, the upper hydrophobic layer and the lower hydrophobic layer are bonded through adhesives.
Preferably, the upper and lower reinforcing layers are both made of PET.
Preferably, the base film is made of HDPE.
The invention has the beneficial effects that:
1. the upper strengthening layer and the lower strengthening layer are arranged on the upper side and the lower side of the base layer film to strengthen the strength of the base layer film by the matching of the upper strengthening layer, the lower strengthening layer, the upper heat-resistant layer, the lower heat-resistant layer, the upper hydrophobic layer and the lower breathable layer, so that the tearing resistance of the composite film is strengthened; the upper heat-resistant layer and the lower heat-resistant layer can enhance the heat resistance of the composite film, so that the composite film can resist high temperature, and the service life of the composite film is prolonged; the upper hydrophobic layer and the lower hydrophobic layer are matched, so that the composite film can be waterproof, and the agricultural products can be well preserved and protected;
2. the upper hydrophobic layer and the lower hydrophobic layer are respectively adhered to the upper breathable layer and the lower breathable layer more firmly by arranging the upper convex blocks below the upper hydrophobic layer and arranging the lower convex blocks above the lower hydrophobic layer; the upper side of the upper strengthening layer is provided with a plurality of upper corrugation bulges, and the lower side of the lower strengthening layer is provided with a plurality of lower corrugation bulges, so that the strength of the upper strengthening layer and the lower strengthening layer is higher, and the tensile resistance is better.
Drawings
FIG. 1 is a schematic structural view of a composite film for agricultural packaging material according to the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic structural diagram at B in fig. 1.
In the figure: 1 base layer film, 2 upper strengthening layers, 3 lower strengthening layers, 4 upper heat-resistant layers, 5 lower heat-resistant layers, 6 upper breathable layers, 7 lower breathable layers, 8 upper hydrophobic layers, 9 lower hydrophobic layers, 10 upper convex blocks, 11 lower convex blocks, 12 upper wrinkle bulges and 13 lower wrinkle bulges.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, a composite film for agricultural packaging material includes a base film 1, the base film 1 is made of HDPE, which is a granular product of high density polyethylene, and has good wear resistance, electrical insulation, toughness and cold resistance; the chemical stability is good, the permeability of the film to vapor and air is small, the water absorption is low, the base layer film 1, the upper strengthening layer 2, the lower strengthening layer 3, the upper heat-resistant layer 4, the lower heat-resistant layer 5, the upper breathable layer 6, the lower breathable layer 7, the upper hydrophobic layer 8 and the lower hydrophobic layer 9 are bonded through adhesives, and the adhesives are environment-friendly adhesives, so that the composite film is non-toxic and more environment-friendly.
The upper and lower both sides of base film 1 are provided with strengthening layer 2 and strengthening layer 3 down respectively, go up strengthening layer 2 and strengthening layer 3 down and make by PET, both sides set up strengthening layer 2 about base film 1, strengthening layer 3 can strengthen base film 1's intensity down, make the ability reinforcing of tearing of complex film, it is PET to go up strengthening layer 2 and strengthening layer 3 down, PET is polyethylene terephthalate, good mechanical properties has, impact strength is 3~5 times of other films, the folding endurance is good.
An upper heat-resistant layer 4 and a lower heat-resistant layer 5 are respectively arranged on the upper side of the upper strengthening layer 2 and the lower side of the lower strengthening layer 3, an upper breathable layer 6 and a lower breathable layer 7 are respectively arranged on the upper side of the upper heat-resistant layer 4 and the lower side of the lower heat-resistant layer 5, an upper hydrophobic layer 8 and a lower hydrophobic layer 9 are respectively arranged on the upper side of the upper breathable layer 6 and the lower side of the lower breathable layer 7, and the upper heat-resistant layer 4 and the lower heat-resistant layer 5 can enhance the heat resistance of the composite film, so that the composite film can resist high temperature, and the; the cooperation of upper hydrophobic layer 8 and lower hydrophobic layer 9 can make the complex film can be waterproof to play fine saving and the effect of protection agricultural product.
Go up the last lug 10 that a plurality of equidistance of downside fixedly connected with of hydrophobic layer 8 were arranged, go up and offer the upper groove that corresponds with last lug 10 on ventilative layer 6, the lower lug 11 that a plurality of equidistance of upside fixedly connected with of lower hydrophobic layer 9 were arranged, the lower recess that corresponds with lower lug 11 is offered to the downside of ventilative layer 7 down, set up a plurality of lugs 10 on the below of last hydrophobic layer 8, it can make go up hydrophobic layer 8 and lower hydrophobic layer 9 respectively with last ventilative layer 6 and ventilative layer 7 sticky more firm to set up a plurality of lower lugs 11 in the top of hydrophobic layer 9 down.
Go up the protruding 12 of the upper side fixedly connected with of strengthening layer 2, go up the downside of heat-resistant layer 4 and offer the last draw-in groove that corresponds with the protruding 12 of last fold, the protruding 13 of the lower fold of downside fixedly connected with of strengthening layer 3 down, the lower draw-in groove that corresponds with the protruding 13 of lower fold is offered to the upside of heat-resistant layer 5 down, set up the protruding 12 of a plurality of folds of going up through the upside at last strengthening layer 2, the downside of strengthening layer 3 sets up a plurality of folds protruding 13 down and can make the intensity of going up strengthening layer 2 and strengthening layer 3 down higher, the stretch-proofing.
In the invention, the upper and lower sides of the base layer film 1 are provided with the upper strengthening layer 2 and the lower strengthening layer 3, which can strengthen the strength of the base layer film 1, so that the tearing resistance of the composite film is enhanced; the upper heat-resistant layer 4 and the lower heat-resistant layer 5 can enhance the heat resistance of the composite film, so that the composite film can resist high temperature, and the service life of the composite film is prolonged; the upper hydrophobic layer 8 and the lower hydrophobic layer 9 are matched to enable the composite film to be waterproof, so that the composite film has good effects of storing and protecting agricultural products, the base layer film 1 is made of HDPE, and the HDPE is a granular product of high-density polyethylene and has good wear resistance, electrical insulation, toughness and cold resistance; chemical stability is good, the film is little to the permeability of vapor and air, the hydroscopicity is low, set up a plurality of lugs 10 on the below of last hydrophobic layer 8, it is firmer to set up a plurality of lugs 11 down in the top of hydrophobic layer 9 down can make last hydrophobic layer 8 and lower hydrophobic layer 9 respectively with last ventilative layer 6 and the gluing of ventilative layer 7 down, it is protruding 12 to set up a plurality of folds on through the upside at last strengthening layer 2, the downside of strengthening layer 3 sets up a plurality of folds protruding 13 down and can make the intensity of going up strengthening layer 2 and strengthening layer 3 down higher, the stretch-proofing ability is better.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (6)

1. The composite film for the agricultural packaging material comprises a base film (1) and is characterized in that an upper reinforcing layer (2) and a lower reinforcing layer (3) are respectively arranged on the upper side and the lower side of the base film (1), an upper heat-resistant layer (4) and a lower heat-resistant layer (5) are respectively arranged on the upper side of the upper reinforcing layer (2) and the lower side of the lower reinforcing layer (3), an upper breathable layer (6) and a lower breathable layer (7) are respectively arranged on the upper side of the upper heat-resistant layer (4) and the lower side of the lower heat-resistant layer (5), and an upper hydrophobic layer (8) and a lower hydrophobic layer (9) are respectively arranged on the upper side of the upper breathable layer (6) and the lower side of the lower breathable layer (7).
2. The composite film for the agricultural packaging material according to claim 1, wherein a plurality of upper bumps (10) are fixedly connected to the lower side of the upper hydrophobic layer (8) and are arranged at equal intervals, upper grooves corresponding to the upper bumps (10) are formed in the upper breathable layer (6), a plurality of lower bumps (11) are fixedly connected to the upper side of the lower hydrophobic layer (9) and are arranged at equal intervals, and lower grooves corresponding to the lower bumps (11) are formed in the lower side of the lower breathable layer (7).
3. A composite film for agricultural packaging material as claimed in claim 1, wherein a plurality of upper corrugation protrusions (12) are fixedly connected to the upper side of the upper reinforcing layer (2), an upper clamping groove corresponding to the upper corrugation protrusions (12) is formed in the lower side of the upper heat-resistant layer (4), a plurality of lower corrugation protrusions (13) are fixedly connected to the lower side of the lower reinforcing layer (3), and a lower clamping groove corresponding to the lower corrugation protrusions (13) is formed in the upper side of the lower heat-resistant layer (5).
4. A composite film for agricultural packaging materials according to claim 1, wherein the base layer film (1), the upper strengthening layer (2), the lower strengthening layer (3), the upper heat-resistant layer (4), the lower heat-resistant layer (5), the upper breathable layer (6), the lower breathable layer (7), the upper hydrophobic layer (8) and the lower hydrophobic layer (9) are bonded together through adhesives.
5. A composite film for agricultural packaging material according to claim 1, wherein the upper reinforcing layer (2) and the lower reinforcing layer (3) are both made of PET.
6. A composite film for agricultural packaging material according to claim 1, characterized in that the base film (1) is made of HDPE.
CN201810913853.2A 2018-08-13 2018-08-13 Composite film for agricultural packaging material Pending CN110816007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810913853.2A CN110816007A (en) 2018-08-13 2018-08-13 Composite film for agricultural packaging material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810913853.2A CN110816007A (en) 2018-08-13 2018-08-13 Composite film for agricultural packaging material

Publications (1)

Publication Number Publication Date
CN110816007A true CN110816007A (en) 2020-02-21

Family

ID=69546702

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810913853.2A Pending CN110816007A (en) 2018-08-13 2018-08-13 Composite film for agricultural packaging material

Country Status (1)

Country Link
CN (1) CN110816007A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113085269A (en) * 2021-03-26 2021-07-09 上海唐科新型包装材料有限公司 Anti-layering gas column bag, gas column film and gas column bag processing technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113085269A (en) * 2021-03-26 2021-07-09 上海唐科新型包装材料有限公司 Anti-layering gas column bag, gas column film and gas column bag processing technology

Similar Documents

Publication Publication Date Title
KR101764406B1 (en) Packing box having heat and cold insulation funtion and method for manufacturing thereof
US20080031553A1 (en) Package for food
CN101730647A (en) The trough of belt lid that packaging fresh fruit, vegetables and fresh flower are used in corresponding controlled atmosphere pallet
KR101689835B1 (en) multiplex Plastic bag for packing
CA2638871A1 (en) Plastic bags and zippers manufactured of a polymeric material containing inorganic filler
CN104262744A (en) Fresh-keeping packaging film for fruits and vegetables
CN103042730B (en) Bag for automatic cheese canning
CN110816007A (en) Composite film for agricultural packaging material
CN110422460B (en) Water-proof bag and preparation method thereof
KR20170012856A (en) Warmth wrapping materials
CN207275360U (en) A kind of composite package film
WO2015151520A1 (en) Packaged article
CN208962628U (en) A kind of composite membrane for agriculture packaging material
CN212291169U (en) Portable packing carton
KR102033888B1 (en) Functional grain packaging box
CN207683072U (en) A kind of sealing film
CN208593617U (en) A kind of reusable logistics packaging device
CN209275285U (en) A kind of shading barrier plastic bottle
CN213169397U (en) Novel degradable material packing carton
CN206231839U (en) A kind of plastics aseptic packaging paper and packing box
CN207141907U (en) A kind of heat preserving antistaling packaging bag
CN203110416U (en) Bag for automatic canning of cheese
CN206691704U (en) A kind of fresh oxygenation packing device
CN204822448U (en) Biscuit plastic packaging bag
CN215321187U (en) Inner layer composite film of packaging bag

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20200221

WD01 Invention patent application deemed withdrawn after publication