CN113212977A - Novel anti-tear draws effectual BOPP complex film - Google Patents
Novel anti-tear draws effectual BOPP complex film Download PDFInfo
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- CN113212977A CN113212977A CN202110497866.8A CN202110497866A CN113212977A CN 113212977 A CN113212977 A CN 113212977A CN 202110497866 A CN202110497866 A CN 202110497866A CN 113212977 A CN113212977 A CN 113212977A
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- 239000011127 biaxially oriented polypropylene Substances 0.000 title claims abstract description 153
- 229920006378 biaxially oriented polypropylene Polymers 0.000 title claims abstract description 153
- 239000011159 matrix material Substances 0.000 claims abstract description 65
- 239000002131 composite material Substances 0.000 claims abstract description 39
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 21
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims abstract description 19
- 239000004816 latex Substances 0.000 claims abstract description 19
- 229920000126 latex Polymers 0.000 claims abstract description 19
- 239000005033 polyvinylidene chloride Substances 0.000 claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 52
- 239000000463 material Substances 0.000 claims description 4
- 241000251468 Actinopterygii Species 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 9
- 239000012790 adhesive layer Substances 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000005021 flexible packaging material Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
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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
- 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
- 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
- B32B3/08—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 characterised by added members at particular parts
-
- 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
- B32B3/30—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 formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- 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
- B65D65/02—Wrappers or flexible covers
- B65D65/22—Details
-
- 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
- B32B2307/30—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
- B32B2307/554—Wear resistance
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a novel BOPP composite film with good tearing resistance effect, which comprises a first BOPP film matrix and a second BOPP film matrix, wherein the second BOPP film matrix is arranged on one side of the first BOPP film matrix, and reinforcing guide wires are respectively embedded in the first BOPP film matrix and the second BOPP film matrix. This novel anti-tear draws effectual BOPP complex film has last PE membrane through bonding on the top of second bond line, the bottom bonding of first bond line has down the PE membrane, the bottom of PE membrane and the top of PVDC latex coating be fixedly connected with lug respectively down, when using, the protection performance that PE membrane and last PE membrane had down utilizes, can be in the transportation, the in-process of storing and using this BOPP complex film protects it, avoid it to receive the pollution, corruption and surface fish tail, and can also strengthen the surperficial wearability of this BOPP complex film through the lug, improve the life of this BOPP complex film, the solution is that the surface receives the relatively poor problem of corruption fish tail and wear resistance easily.
Description
Technical Field
The invention relates to the technical field of BOPP composite films, in particular to a novel BOPP composite film with good tearing resistance effect.
Background
The BOPP film is a very important flexible packaging material, is a film prepared by processing a high-molecular polypropylene material into a thick film and then performing bidirectional stretching, has the advantages of no color, no odor, no toxicity, high impact strength and the like, but has certain problems and defects in the conventional BOPP film.
In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved:
(1) the traditional BOPP composite film has the advantages that the tearing-resistant effect cannot meet the use requirement, and the traditional BOPP composite film is inconvenient to tear flatly;
(2) the surface of the traditional BOPP composite film is easily corroded and scratched and has poor wear resistance;
(3) traditional BOPP complex film does not have the heat-sealability, and the suitability is relatively poor.
Disclosure of Invention
The invention aims to provide a novel BOPP composite film with good tearing resistance effect, and aims to solve the problems that the tearing effect cannot meet the use requirement and the BOPP composite film is not easy to be torn smoothly in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a novel BOPP composite film with good tearing resistance effect comprises a first BOPP film matrix and a second BOPP film matrix, the first BOPP film matrix is arranged on one side of the first BOPP film matrix, reinforcing guide wires are respectively embedded in the first BOPP film matrix and the second BOPP film matrix, a connecting matrix is arranged at the joint of the first BOPP film matrix and the second BOPP film matrix, a tearing opening is arranged in the connecting matrix, the top ends of the first BOPP film matrix and the second BOPP film matrix are respectively provided with a second bonding layer, the top end of the second adhesive layer is adhered with an upper PE film, the top end of the upper PE film is coated with a PVDC latex coating, the bottom ends of the first BOPP film matrix and the second BOPP film matrix are respectively provided with a first bonding layer, the bottom end of the first bonding layer is bonded with a lower PE film, and the bottom end of the lower PE film and the top end of the PVDC latex coating are fixedly connected with a bump respectively.
Preferably, the reinforcing guide wires respectively divide the first BOPP film matrix and the second BOPP film matrix into two parts with equal upper and lower thicknesses, and the reinforcing guide wires are arranged in the first BOPP film matrix and the second BOPP film matrix in a net shape.
Preferably, the connection matrix is a common part of the first BOPP film matrix and the reinforcing guide wire, and the reinforcing guide wire is not arranged inside the connection matrix.
Preferably, the top end and the bottom end of the connection base body are respectively provided with a notch, and the connection base body is only made of materials forming the first BOPP film base body and the second BOPP film base body.
Preferably, the bumps are respectively arranged at the bottom end of the lower PE film and the top end of the PVDC latex coating layer at equal intervals.
Preferably, the lower PE film and the upper PE film have equal thicknesses and are symmetrically distributed about the horizontal center line of the first BOPP film substrate and the second BOPP film substrate.
Compared with the prior art, the invention has the beneficial effects that: the novel BOPP composite film with good tearing resistance effect not only realizes the tearing effect and can meet the use requirement, but also is convenient for tearing the film flatly, realizes that the surface is not easy to be corroded and scratched, has better wear resistance, realizes heat sealability and stronger applicability;
(1) the reinforced guide wires are respectively embedded in the first BOPP film matrix and the second BOPP film matrix, the connecting matrix is arranged at the joint of the first BOPP film matrix and the second BOPP film matrix, the tearing opening is formed in the connecting matrix, when the composite film is used, the reinforced guide wires are meshed and are respectively embedded in the first BOPP film matrix and the second BOPP film matrix, so that the tearing resistance of the first BOPP film matrix and the second BOPP film matrix can be greatly enhanced, meanwhile, the first BOPP film matrix and the second BOPP film matrix are connected only through the connecting matrix, and under the action of the tearing opening, the connecting matrix can be easily torn along the tearing opening, so that the first BOPP film matrix and the second BOPP film matrix are smoothly torn, and the composite film is convenient to use;
(2) the upper PE film is bonded at the top end of the second bonding layer, the lower PE film is bonded at the bottom end of the first bonding layer, the bottom end of the lower PE film and the top end of the PVDC latex coating are fixedly connected with the lug respectively, and when the BOPP composite film is used, the BOPP composite film can be protected in the processes of transportation, storage and use by utilizing the protection performance of the lower PE film and the upper PE film, so that the BOPP composite film is prevented from being polluted, corroded and scratched on the surface, the wear resistance of the surface of the BOPP composite film can be enhanced through the lug, and the service life of the BOPP composite film is prolonged;
(3) through the top coating at last PE membrane has PVDC latex coating, when using, because the BOPP complex film does not have the heat sealability, with PVDC latex coating at the upper surface of this BOPP complex film, utilize the heat sealability that PVDC latex coating has, can make the upper surface of this BOPP complex film have the heat sealability, can make the application scope of this BOPP complex film more extensive like this, strengthen its practicality.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is an enlarged partial cross-sectional view taken at A in FIG. 1 according to the present invention;
FIG. 3 is a top view of an enlarged partial structure of the reinforcing guidewire of the present invention;
fig. 4 is a schematic top view of a partially enlarged connection substrate according to the present invention.
In the figure: 1. a first BOPP film substrate; 2. a reinforcing guidewire; 3. a first adhesive layer; 4. a PE film is arranged; 5. a bump; 6. a second BOPP film substrate; 7. a second adhesive layer; 8. coating a PE film; 9. a PVDC latex coating; 10. connecting the substrates; 11. tearing the opening.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: referring to fig. 1-4, a novel BOPP composite film with good tearing resistance effect includes a first BOPP film substrate 1 and a second BOPP film substrate 6, the second BOPP film substrate 6 is disposed on one side of the first BOPP film substrate 1, reinforcing guide wires 2 are respectively embedded in the first BOPP film substrate 1 and the second BOPP film substrate 6, a connection substrate 10 is disposed at a joint of the first BOPP film substrate 1 and the second BOPP film substrate 6, and a tearing opening 11 is disposed in the connection substrate 10;
the reinforcing guide wires 2 respectively divide the first BOPP film matrix 1 and the second BOPP film matrix 6 into two parts with equal upper and lower thicknesses, and the reinforcing guide wires 2 are arranged in a net shape in the first BOPP film matrix 1 and the second BOPP film matrix 6;
the connecting matrix 10 is a common part of the first BOPP film matrix 1 and the reinforcing guide wire 2, and the reinforcing guide wire 2 is not arranged in the connecting matrix 10;
the top end and the bottom end of the connecting matrix 10 are respectively provided with a notch, and the connecting matrix 10 is only made of materials forming the first BOPP film matrix 1 and the second BOPP film matrix 6;
specifically, as shown in fig. 1, 3 and 4, when in use, the reinforcing guide wire 2 is in a net shape and is respectively embedded into the first BOPP film substrate 1 and the second BOPP film substrate 6, so that the tear resistance of the first BOPP film substrate 1 and the second BOPP film substrate 6 can be greatly enhanced, meanwhile, the first BOPP film substrate 1 and the second BOPP film substrate 6 are only connected through the connection substrate 10, and under the effect of the tear opening 11, the connection substrate 10 can be easily torn along the tear opening 11, and then the first BOPP film substrate 1 and the second BOPP film substrate 6 are torn flatly, thereby facilitating the use of the composite film.
Example 2: the top ends of the first BOPP film substrate 1 and the second BOPP film substrate 6 are respectively provided with a second bonding layer 7, the top end of the second bonding layer 7 is bonded with an upper PE film 8, the bottom ends of the first BOPP film substrate 1 and the second BOPP film substrate 6 are respectively provided with a first bonding layer 3, the bottom end of the first bonding layer 3 is bonded with a lower PE film 4, the bottom end of the lower PE film 4 and the top end of the PVDC latex coating 9 are respectively and fixedly connected with a lug 5, and the lugs 5 are respectively arranged at the bottom end of the lower PE film 4 and the top end of the PVDC latex coating 9 at equal intervals;
the thicknesses of the lower PE film 4 and the upper PE film 8 are equal, and the lower PE film 4 and the upper PE film 8 are symmetrically distributed about the horizontal center lines of the first BOPP film matrix 1 and the second BOPP film matrix 6;
specifically, as shown in fig. 1 and fig. 2, when in use, the BOPP composite film can be protected from contamination, corrosion and surface scratch during transportation, storage and use by using the protective properties of the lower PE film 4 and the upper PE film 8, and the abrasion resistance of the surface of the BOPP composite film can be enhanced by the bumps 5, so that the service life of the BOPP composite film can be prolonged.
Example 3: the top end of the upper PE film 8 is coated with a PVDC latex coating 9;
specifically, as shown in fig. 1, when the BOPP composite film is used, the PVDC latex coating 9 is coated on the upper surface of the BOPP composite film because the BOPP composite film does not have heat sealability, and the heat sealability of the PVDC latex coating 9 is utilized to enable the upper surface of the BOPP composite film to have heat sealability, so that the application range of the BOPP composite film can be wider, and the practicability of the BOPP composite film can be enhanced.
The working principle is as follows: when the BOPP composite film is used, firstly, the reinforcing guide wires 2 are meshed and are respectively embedded into the first BOPP film substrate 1 and the second BOPP film substrate 6, so that the tearing resistance of the first BOPP film substrate 1 and the second BOPP film substrate 6 can be greatly enhanced, meanwhile, the first BOPP film substrate 1 and the second BOPP film substrate 6 are connected only through the connecting substrate 10, the connecting substrate 10 can be easily torn along the tearing opening 11 under the action of the tearing opening 11, further, the first BOPP film substrate 1 and the second BOPP film substrate 6 are flatly torn, the use of the composite film is facilitated, the lower PE film 4 and the upper PE film 8 are fixedly adhered to the BOPP composite film through the first adhesive layer 3 and the second adhesive layer 7, and the BOPP composite film can be protected during the transportation, the storage and the use of the BOPP composite film by utilizing the protection performance of the lower PE film 4 and the upper PE film 8, so that the BOPP composite film is prevented from being polluted, Corrode and surperficial fish tail, can also strengthen the wearability on this BOPP complex film surface through lug 5 moreover, improve the life of this BOPP complex film, with PVDC latex coating 9 coating at the upper surface of this BOPP complex film, utilize the heat sealability that PVDC latex coating 9 had, can make the upper surface of this BOPP complex film have the heat sealability, can make the application scope of this BOPP complex film more extensive like this, strengthen its practicality.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a novel anti effectual BOPP complex film of tearing, includes first BOPP membrane base member (1) and second BOPP membrane base member (6), its characterized in that: the second BOPP film substrate (6) is arranged on one side of the first BOPP film substrate (1), the reinforcing guide wires (2) are embedded into the first BOPP film substrate (1) and the second BOPP film substrate (6) respectively, a connecting substrate (10) is arranged at the joint of the first BOPP film substrate (1) and the second BOPP film substrate (6), a tearing opening (11) is arranged in the connecting substrate (10), a second bonding layer (7) is arranged at the top ends of the first BOPP film substrate (1) and the second BOPP film substrate (6) respectively, an upper PE film (8) is bonded to the top end of the second bonding layer (7), a PVDC coating latex layer (9) is coated on the top end of the upper PE film (8), first bonding layers (3) are arranged at the bottom ends of the first BOPP film substrate (1) and the second BOPP film substrate (6) respectively, and a lower PE film (4) is arranged at the bottom end of the first bonding layer (3), the bottom end of the lower PE film (4) and the top end of the PVDC latex coating (9) are fixedly connected with a bump (5) respectively.
2. The novel BOPP composite film with good tearing resistance effect according to claim 1, is characterized in that: the reinforced guide wire (2) separates the first BOPP film matrix (1) and the second BOPP film matrix (6) into two parts with equal upper and lower thicknesses, and the reinforced guide wire (2) is arranged in the first BOPP film matrix (1) and the second BOPP film matrix (6) in a net shape.
3. The novel BOPP composite film with good tearing resistance effect according to claim 1, is characterized in that: the connection matrix (10) is a shared part of the first BOPP film matrix (1) and the reinforcing guide wire (2), and the reinforcing guide wire (2) is not arranged in the connection matrix (10).
4. The novel BOPP composite film with good tearing resistance effect according to claim 1, is characterized in that: the top end and the bottom end of the connection base body (10) are respectively provided with a notch, and the connection base body (10) is only made of materials forming the first BOPP film base body (1) and the second BOPP film base body (6).
5. The novel BOPP composite film with good tearing resistance effect according to claim 1, is characterized in that: the bumps (5) are respectively arranged at the bottom end of the lower PE film (4) and the top end of the PVDC latex coating (9) at equal intervals.
6. The novel BOPP composite film with good tearing resistance effect according to claim 1, is characterized in that: the thickness of the lower PE film (4) is equal to that of the upper PE film (8), and the lower PE film (4) and the upper PE film (8) are symmetrically distributed about the horizontal center lines of the first BOPP film matrix (1) and the second BOPP film matrix (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110497866.8A CN113212977B (en) | 2021-05-08 | 2021-05-08 | Novel anti-tear draws effectual BOPP complex film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110497866.8A CN113212977B (en) | 2021-05-08 | 2021-05-08 | Novel anti-tear draws effectual BOPP complex film |
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| Publication Number | Publication Date |
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| CN113212977A true CN113212977A (en) | 2021-08-06 |
| CN113212977B CN113212977B (en) | 2022-06-24 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1013783A (en) * | 1961-05-25 | 1965-12-22 | Bx Plastics Ltd | Improvements in or relating to tear tapes for plastic films |
| JPH10278965A (en) * | 1997-04-02 | 1998-10-20 | P C U:Kk | Easily tearable packaging material |
| JP2004082363A (en) * | 2002-08-23 | 2004-03-18 | Ko Seiko | Laminate |
| CN102498047A (en) * | 2009-08-28 | 2012-06-13 | 特里奥凡德国有限公司及两合公司 | Polypropylene film comprising an opening aid |
| CN109910457A (en) * | 2017-12-13 | 2019-06-21 | 江苏万宝瑞达高新技术有限公司 | A kind of BOPP thermosensitive film improving printing layer of ink binding strength |
| CN210362819U (en) * | 2019-02-14 | 2020-04-21 | 嘉兴市明跃包装材料有限公司 | Butt-joint seamless composite sheet |
| CN212504695U (en) * | 2020-06-28 | 2021-02-09 | 温州森纳包装材料有限公司 | BOPP membrane of precoating convenient to tear off |
| CN213036510U (en) * | 2020-06-22 | 2021-04-23 | 宜兴博雅新材料科技有限公司 | Vacuum packaging film structure |
-
2021
- 2021-05-08 CN CN202110497866.8A patent/CN113212977B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1013783A (en) * | 1961-05-25 | 1965-12-22 | Bx Plastics Ltd | Improvements in or relating to tear tapes for plastic films |
| JPH10278965A (en) * | 1997-04-02 | 1998-10-20 | P C U:Kk | Easily tearable packaging material |
| JP2004082363A (en) * | 2002-08-23 | 2004-03-18 | Ko Seiko | Laminate |
| CN102498047A (en) * | 2009-08-28 | 2012-06-13 | 特里奥凡德国有限公司及两合公司 | Polypropylene film comprising an opening aid |
| CN109910457A (en) * | 2017-12-13 | 2019-06-21 | 江苏万宝瑞达高新技术有限公司 | A kind of BOPP thermosensitive film improving printing layer of ink binding strength |
| CN210362819U (en) * | 2019-02-14 | 2020-04-21 | 嘉兴市明跃包装材料有限公司 | Butt-joint seamless composite sheet |
| CN213036510U (en) * | 2020-06-22 | 2021-04-23 | 宜兴博雅新材料科技有限公司 | Vacuum packaging film structure |
| CN212504695U (en) * | 2020-06-28 | 2021-02-09 | 温州森纳包装材料有限公司 | BOPP membrane of precoating convenient to tear off |
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