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CN116093507A - Plastic-aluminum composite film capable of reducing glue overflow - Google Patents

Plastic-aluminum composite film capable of reducing glue overflow Download PDF

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Publication number
CN116093507A
CN116093507A CN202211103436.4A CN202211103436A CN116093507A CN 116093507 A CN116093507 A CN 116093507A CN 202211103436 A CN202211103436 A CN 202211103436A CN 116093507 A CN116093507 A CN 116093507A
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CN
China
Prior art keywords
layer
composite film
aluminum
plastic composite
flash
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
CN202211103436.4A
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Chinese (zh)
Inventor
张建林
张黎明
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.)
Suzhou Rongdaxin New Material Technology Co ltd
Original Assignee
Suzhou Rongdaxin New Material Technology 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 Suzhou Rongdaxin New Material Technology Co ltd filed Critical Suzhou Rongdaxin New Material Technology Co ltd
Priority to CN202211103436.4A priority Critical patent/CN116093507A/en
Publication of CN116093507A publication Critical patent/CN116093507A/en
Pending legal-status Critical Current

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    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal 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
    • B32B15/085—Layered products comprising a layer of metal comprising metal 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 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal 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
    • B32B15/088—Layered products comprising a layer of metal comprising metal 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 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • B32B3/26—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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
    • H01M50/129—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers with two or more layers of only organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/231—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks having a layered structure
    • 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
    • B32B2307/70—Other properties
    • B32B2307/746—Slipping, anti-blocking, low friction
    • 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
    • B32B2457/00—Electrical equipment
    • B32B2457/10—Batteries
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

In order to solve the problems that the contact surface of the aluminum-plastic composite film with a mould is reduced when the aluminum-plastic composite film is deep punched, the deep punching forming is facilitated, and the sealing layer of a packaging area is fused under high temperature and high pressure of an end socket, so that a closed space is formed, and PP is easy to overflow.

Description

Plastic-aluminum composite film capable of reducing glue overflow
Technical Field
The invention relates to the field of lithium battery packaging materials, in particular to an aluminum-plastic composite film for reducing glue overflow.
Background
In the production process of polymer lithium ion batteries, a steel shell, an aluminum shell or an aluminum-plastic composite film is generally adopted to package the bare cell. Compared with rigid shell materials such as steel shells, aluminum shells and the like, the aluminum-plastic composite film has certain ductility, and can play a certain buffering role when the battery is inflated under abnormal conditions such as overcharging, short circuit and the like, so that the soft package battery packaged by the aluminum-plastic composite film has better safety performance. Currently, with the application of the soft battery to a large number of places requiring high power and large capacity, such as an automobile power system and other electric tools, the safety performance is becoming an important point of the performance of the soft battery. Through technical innovation, the aluminum-plastic composite film has higher packaging strength, better electrolyte resistance, higher water vapor interlayer performance and richer size and shape diversity, which are key to the battery flexible packaging technology.
The aluminum-plastic composite film of the soft package battery is a composite film formed by an outer protective layer (such as a nylon layer or a polyethylene terephthalate layer, etc.), a middle aluminum foil layer and an inner heat sealing layer (such as a polypropylene layer), and the composite layers are bonded by using an adhesive. The packaging of the soft package lithium ion battery aluminum-plastic composite film is mainly characterized in that the aluminum-plastic composite film is subjected to deep drawing to form an inner groove for wrapping a bare cell, researches show that the aluminum-plastic composite film reduces the contact surface with a die during deep drawing, so that deep drawing is facilitated, after the deep drawing is finished, the heat sealing layer of the packaging area is fused through the high temperature and high pressure of the sealing head, so that a closed space is formed, PP is easy to overflow, and the battery performance is influenced, and the molding attractiveness of the whole soft package battery aluminum-plastic composite film is influenced.
Disclosure of Invention
In order to solve the problems that the contact surface with a mould is reduced when the aluminum-plastic composite film is deep punched, the deep punching forming is facilitated, and the sealing layer in the packaging area is fused under the high temperature and high pressure of the sealing head, so that a closed space is formed, and PP is easy to overflow.
The utility model provides a reduce plastic-aluminum complex film of glue overflow, includes nylon film layer 1, adhesive layer 2, aluminium foil layer 3, PP layer 4 from outside in proper order, its characterized in that: the inner surface of the PP layer 4 is provided with a nano microstructure layer 5.
In the preferred embodiment of the present invention, the nano-micro structure layer 5 is composed of nano-micro structures arranged at intervals and fully distributed, and the nano-micro structure is formed by embossing the PP layer 4 in a high temperature state through an embossing roller.
Further, the PP layer 4 comprises an MPP layer and a heat-seal PP layer, the MPP layer is connected with the aluminum foil layer 3, and the inner surface of the heat-seal PP layer is provided with a nano microstructure layer 5.
Further, high temperature means a temperature of 160-250 ℃.
In the preferred embodiment of the invention, the nano microstructure is an ellipsoid or a sphere, and the circular or round-like structure arrangement can reduce the contact surface with the die and simultaneously has the sliding sense similar to steel balls, so that the friction force between the die and the aluminum-plastic composite film is further reduced.
Furthermore, the gaps between adjacent nano microstructures are 0.01-3 mu m, the convex PP flows to the gaps under the action of pressure during heat sealing, and finally no glue overflow phenomenon exists after heat sealing.
Further, the width of the nano-microstructures is 0.01-3 μm.
Further, the depth of the nano microstructure is 0.01-1.5mm.
In the preferred embodiment of the invention, the residual thickness of the aluminum foil layer 3 after deep drawing is 60% -70%.
In the preferred embodiment of the present invention, the nylon film layer 1 has a thickness of 2 to 25 μm, the aluminum foil layer 3 has a thickness of 35 to 45 μm, the adhesive layers have a thickness of 3 to 5 μm, and the PP has a thickness of 25 to 80 μm.
The invention has the beneficial effects that: the invention provides an aluminum-plastic composite film for reducing glue overflow, which sequentially comprises a nylon film layer 1, an adhesive layer 2, an aluminum foil layer 3 and a PP layer 4 from outside to inside, wherein the inner surface of the PP layer 4 is provided with a nano microstructure layer 5, the nano microstructure layer 5 is in a full-cloth ellipsoid or sphere shape, and the circular or round-like structure can reduce the contact surface with a die and simultaneously has the sliding sense similar to steel balls, so that the friction force between the die and the aluminum-plastic composite film is further reduced, the deep punching effect is good, meanwhile, the convex PP can flow to a concave position due to the pressure effect during heat sealing, the glue overflow phenomenon is avoided after heat sealing finally, and the residual thickness of the aluminum foil layer 3 is improved.
Drawings
Fig. 1 is a schematic structural diagram of a product made of the aluminum-plastic composite film with reduced glue overflow.
Description of the main reference signs
Nylon film layer 1
Adhesive layer 2
Aluminum foil layer 3
PP layer 4
Nano-micro structure layer 5
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
The following examples are described to aid in the understanding of the present application and are not, nor should they be construed in any way to limit the scope of the present application.
In the following description, those skilled in the art will recognize that components may be described as separate functional units (which may include sub-units) throughout this discussion, but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including integration within a single system or component).
Meanwhile, the connection between components or systems within the drawings is not intended to be limited to a direct connection. Rather, data between these components may be modified, reformatted, or otherwise changed by intermediate components. In addition, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" are to be construed as including direct connection, indirect connection or fixation through one or more intermediaries.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "side", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships as used or conventionally recognized in the product of the application, are merely for convenience of description of the present application and simplification of description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
Fig. 1 is a schematic structural diagram of a product made of the aluminum-plastic composite film with reduced glue overflow.
The utility model provides a reduce plastic-aluminum complex film of glue overflow, includes nylon film layer 1, adhesive layer 2, aluminium foil layer 3, PP layer 4 from outside in proper order, its characterized in that: the inner surface of the PP layer 4 is provided with a nano microstructure layer 5.
In the preferred embodiment of the present invention, the nano-micro structure layer 5 is composed of nano-micro structures arranged at intervals and fully distributed, and the nano-micro structure is formed by embossing the PP layer 4 in a high temperature state through an embossing roller.
Further, the PP layer 4 comprises an MPP layer and a heat-seal PP layer, the MPP layer is connected with the aluminum foil layer 3, and the inner surface of the heat-seal PP layer is provided with a nano microstructure layer 5.
Further, high temperature means a temperature of 160-250 ℃.
In the preferred embodiment of the invention, the nano microstructure is an ellipsoid or a sphere, and the circular or round-like structure arrangement can reduce the contact surface with the die and simultaneously has the sliding sense similar to steel balls, so that the friction force between the die and the aluminum-plastic composite film is further reduced.
Furthermore, the gaps between adjacent nano microstructures are 0.01-3 mu m, the convex PP flows to the gaps under the action of pressure during heat sealing, and finally no glue overflow phenomenon exists after heat sealing.
Further, the width of the nano-microstructures is 0.01-3 μm.
Further, the depth of the nano microstructure is 0.01-1.5mm.
In the preferred embodiment of the invention, the residual thickness of the aluminum foil layer 3 after deep drawing is 60% -70%.
In the preferred embodiment of the present invention, the nylon film layer 1 has a thickness of 2 to 25 μm, the aluminum foil layer 3 has a thickness of 35 to 45 μm, the adhesive layers have a thickness of 3 to 5 μm, and the PP has a thickness of 25 to 80 μm.
The invention has the beneficial effects that: the invention provides an aluminum-plastic composite film for reducing glue overflow, which sequentially comprises a nylon film layer 1, an adhesive layer 2, an aluminum foil layer 3 and a PP layer 4 from outside to inside, wherein the inner surface of the PP layer 4 is provided with a nano microstructure layer 5, the nano microstructure layer 5 is in a full-cloth ellipsoid or sphere shape, and the circular or round-like structure can reduce the contact surface with a die and simultaneously has the sliding sense similar to steel balls, so that the friction force between the die and the aluminum-plastic composite film is further reduced, the deep punching effect is good, meanwhile, the convex PP can flow to a concave position due to the pressure effect during heat sealing, the glue overflow phenomenon is avoided after heat sealing finally, and the residual thickness of the aluminum foil layer 3 is improved.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. The utility model provides a reduce plastic-aluminum complex film of glue overflow, includes nylon thin film layer (1), adhesive layer (2), aluminium foil layer (3), PP layer (4) from outside in proper order, its characterized in that: the inner surface of the PP layer (4) is provided with a nanometer microstructure layer (5).
2. The flash-reducing aluminum-plastic composite film of claim 1, wherein: the nanometer microstructure layer (5) is composed of nanometer microstructures which are distributed at intervals and are formed by embossing the PP layer (4) at a high temperature through an embossing roller.
3. The flash-reducing aluminum-plastic composite film of claim 1, wherein: the PP layer (4) comprises an MPP layer and a heat-seal PP layer, the MPP layer is connected with the aluminum foil layer (3), and the inner surface of the heat-seal PP layer is provided with a nano microstructure layer (5).
4. The flash-reducing aluminum-plastic composite film as set forth in claim 2, wherein: high temperature means a temperature of 160-250 ℃.
5. The flash-reducing aluminum-plastic composite film of claim 1, wherein: the nanometer microstructure is ellipsoid or sphere, and the round or round-like structure arrangement can reduce the contact surface with the die and simultaneously has the sliding sense similar to steel balls, so that the friction force between the die and the aluminum-plastic composite film is further reduced.
6. The flash-reducing aluminum-plastic composite film of claim 1, wherein: the gaps between adjacent nanometer microstructures are 0.01-3 μm, the convex PP flows to the gaps due to the pressure effect during heat sealing, and finally no glue overflow phenomenon occurs after heat sealing.
7. The flash-reducing aluminum-plastic composite film of claim 1, wherein: the width of the nano microstructure is 0.01-3 mu m.
8. The flash-reducing aluminum-plastic composite film of claim 1, wherein: the depth of the nano microstructure is 0.01-1.5mm.
9. The flash-reducing aluminum-plastic composite film of claim 1, wherein: after deep punching, the residual thickness of the aluminum foil layer (3) is 60% -70%.
10. The flash-reducing aluminum-plastic composite film of claim 1, wherein: the thickness of the nylon film layer (1) is 2-25 mu m, the thickness of the aluminum foil layer (3) is 35-45 mu m, the thickness of the adhesive layer is 3-5 mu m, and the thickness of the PP is 25-80 mu m.
CN202211103436.4A 2022-09-09 2022-09-09 Plastic-aluminum composite film capable of reducing glue overflow Pending CN116093507A (en)

Priority Applications (1)

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CN202211103436.4A CN116093507A (en) 2022-09-09 2022-09-09 Plastic-aluminum composite film capable of reducing glue overflow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211103436.4A CN116093507A (en) 2022-09-09 2022-09-09 Plastic-aluminum composite film capable of reducing glue overflow

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117887373A (en) * 2024-01-16 2024-04-16 苏州融达信新材料科技有限公司 Fast packaging aluminum plastic film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117887373A (en) * 2024-01-16 2024-04-16 苏州融达信新材料科技有限公司 Fast packaging aluminum plastic film

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