CN114734654A - Preparation method of high-barrier packaging material - Google Patents

Preparation method of high-barrier packaging material Download PDF

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Publication number
CN114734654A
CN114734654A CN202210529797.9A CN202210529797A CN114734654A CN 114734654 A CN114734654 A CN 114734654A CN 202210529797 A CN202210529797 A CN 202210529797A CN 114734654 A CN114734654 A CN 114734654A
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film
aluminum foil
barrier
layer
thickness
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CN202210529797.9A
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Chinese (zh)
Inventor
高淼
储婧婧
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Anhui Zijin New Material Science & Technology Co ltd
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Anhui Zijin New Material Science & Technology Co ltd
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Priority to CN202210529797.9A priority Critical patent/CN114734654A/en
Publication of CN114734654A publication Critical patent/CN114734654A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C08J2323/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/10—Homopolymers or copolymers of propene
    • C08J2423/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C08J2423/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention provides a preparation method of a high-barrier packaging material, which is prepared by compounding an aluminum foil and an LDPE film or a PP film, wherein the LDPE film is a multi-layer co-extruded polyethylene film, and the PP film is a multi-layer co-extruded polypropylene film. The material structure mode is simple, the flexible package has the characteristics of high packaging function, display function, high barrier function, low cost, convenience in recovery, high recycling value and the like, the contradiction of high barrier and complex material structure of the existing flexible package is solved, and the pain points of high recovery and decomposition cost and low recycling value are solved; the material structure can also be made into a semi-finished product, a printing procedure is arranged near a production line of a terminal customer or in a garden to finish printing operation, and order miniaturization and quick response can be realized; the environment-friendly printing ink and the printing mode such as water-based printing ink are selected, so that the environment-friendly requirement can be met.

Description

Preparation method of high-barrier packaging material
Technical Field
The invention discloses a preparation method of a high-barrier packaging material, and belongs to the technical field of packaging materials.
Background
In recent years, the flexible packaging market pursues material simplification, recycling, degradability and material dealumination, but the actual product cannot meet the basic functional requirements of the package. Real demand for products: completing basic functions of packaging; high barrier requirements on water, air and light are provided; thirdly, the material can be simply decomposed by a high-temperature melting method in the later period by utilizing the larger melting point difference of the material, so that the material can be recycled. The technology meeting the above 3-point real requirements can provide a flexible packaging material which is safe, reliable and resource-renewable. However, in the prior art, no disclosure of such products and techniques is found.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a preparation method of a high-barrier packaging material.
The technical scheme of the invention is as follows: the preparation method of the high-barrier packaging material is characterized in that the high-barrier packaging material is prepared by compounding an aluminum foil and an LDPE film or a PP film, wherein the LDPE film is a multi-layer co-extruded polyethylene film, and the PP film is a multi-layer co-extruded polypropylene film.
Furthermore, the compounding mode is laminating compounding, so that the purity of the material is ensured, and the value of later-stage recovery circulation is improved.
Further, in the preparation of the LDPE film, 10-60% of a polyethylene elastomer material, 20-40% of an SP2000B polybutylene material and 10-60% of a BP-1 polybutylene material are added into an inner heat sealing layer of the multilayer co-extruded polyethylene film, and are fully mixed with a base material to form a film through co-extrusion;
in the preparation of the PP film, adding 10-15% of a polyethylene elastomer material, 20-40% of an SP2000B polybutylene material and 10-60% of a BP-1 polybutylene material into an inner heat-sealing layer of a multi-layer co-extruded polypropylene film, fully mixing the materials with a base material, and then co-extruding the mixture to form a film;
and selecting the LDPE film or PP film material according to filling content and processing parameters, and determining the thickness of the LDPE film or PP film material.
Further, the film is fully cured after being compounded, the curing time is more than 12 hours, and the thermal stress generated during compounding operation is released, so that the film is smooth; on the basis, the required patterns are printed on the outer surface of the aluminum foil layer, the aluminum foil layer is cut on line or off line after printing is finished, the aluminum foil layer is cut into products with different widths according to requirements, or the cured semi-finished product is cut after thermal stress is released according to the thickness and the width required by the product and the package, the semi-finished product meeting the thickness requirement is cut into semi-finished products with corresponding widths, and a printing procedure is arranged near a production line or in a garden of a terminal client to finish printing operation.
Further, the thickness of the aluminum foil is set according to the barrier requirements of the contents and the filling manner of the contents, and finally the total thickness of the packaging film material is set.
Furthermore, the thickness of the aluminum foil is more than 9 μm when the barrier requirement is extremely high, the final appearance form of the package is a surrounding type, the packaging film material needs to be subjected to pre-punching and stretching forming before packaging, the thickness of the aluminum foil is more than 25 μm, and the total thickness of the packaging film material is more than 100 μm.
Furthermore, the printing adopts water-based ink, meets the requirements of high-speed packaging machinery on surface friction coefficient and heat sealing temperature resistance, and selects high-temperature-resistant gloss oil with higher temperature resistance as the outermost layer of the ink for full surface coverage.
The beneficial technical effects of the invention are as follows: the simple material structure mode endows the flexible package with the characteristics of high packaging function, display function, high barrier function, low cost, convenient recovery, high recycling value and the like, solves the contradiction of high barrier and complex material structure of the existing flexible package, and solves the pain points of high recovery and decomposition cost and low recycling value; the material structure can also be made into a semi-finished product, a printing procedure is arranged near a production line of a terminal customer or in a garden to finish printing operation, and order miniaturization and quick response can be realized; the environment-friendly printing ink and the printing mode such as water-based printing ink are selected, so that the environment-friendly requirement can be met.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
Example 1
The preparation method of the high-barrier packaging material is characterized in that the high-barrier packaging material is prepared by compounding an aluminum foil and an LDPE film or a PP film, wherein the LDPE film is a multi-layer co-extruded polyethylene film, and the PP film is a multi-layer co-extruded polypropylene film.
The invention provides a unique and simple material structure mode, and endows the flexible package with a packaging function; and (4) displaying functions: the clam type package or the pre-stretching package has strong three-dimensional effect, and can provide various appearance effects according to the variety and convenience of the shape change of the pre-stretching die;
low-cost convenient recovery: leftover materials, tailing materials and used wastes in the manufacturing process can be simply crushed and then heated at high temperature, and 2 materials can be conveniently decomposed and recovered by utilizing the larger melting point difference between aluminum and polyethylene (or polypropylene). The used waste is cleaned after being crushed to remove other garbage, dust and the like adhered to the waste, so that the purity of the recovered materials is improved, and the energy consumption and the generation of harmful substances are reduced.
The recycling value is high: the decomposed material has high purity and less impurities, meets the sanitary standard of recycling, is the standard for measuring the recycling value, solves the contradiction of high barrier and complex material structure of the existing soft package, and solves the pain points of high recycling and decomposing cost and low recycling value.
Example 2
As shown in fig. 1, as a specific design, the LDPE film and the PP film both need to be selected with different thickness or formulation requirements according to the final requirements of customers; the LDPE film and the PP film are easy to open at the heat-seal peeling strength position after packaging. Thus, in this example, the LDPE film formulation: firstly, adding 10-60% of EVA polyethylene elastomer material into an inner heat-sealing layer of a multi-layer co-extruded polyethylene film, and fully mixing the EVA polyethylene elastomer material with a base material to form a film; secondly, adding 20-40% of SP2000B polybutylene material into an inner heat-sealing layer of the multilayer co-extruded polyethylene film, fully mixing the material with a base material, and then co-extruding to form a film; thirdly, adding 10-60% of BP-1 polybutylene material into an inner heat-sealing layer of the multilayer co-extruded polyethylene film, fully mixing with a base material, and then co-extruding to form a film; the PP film formula comprises: firstly, adding 10-15% of EVA polyethylene elastomer material into an inner heat-sealing layer of a multi-layer co-extruded polypropylene film, fully mixing with a base material, and then co-extruding to form a film; secondly, adding 20-40% of SP2000B polybutylene material into an inner heat-sealing layer of the multilayer co-extruded polyethylene film, fully mixing the material with a base material, and then co-extruding to form a film; thirdly, adding 10-60% of BP-1 polybutylene material into the inner layer (heat sealing layer) of the multilayer co-extruded polyethylene film, fully mixing with the base material, and then co-extruding to form a film; selecting the LDPE film or PP film material according to filling contents and processing parameters, and determining the thickness of the LDPE film or PP film material; and printing on the outer surface of the aluminum foil layer.
The compounding mode is laminating compounding, so that the purity of the material is ensured, and the value of later-stage recovery circulation is improved. Fully curing after compounding for more than 12 hours, releasing the thermal stress generated during compounding operation and smoothing the film; on the basis, the required patterns are printed on the outer surface of the aluminum foil layer, the aluminum foil layer is cut on line or off line after printing is finished, the aluminum foil layer is cut into products with different widths according to requirements, or the cured semi-finished product is cut after thermal stress is released according to the thickness and the width required by the product and the package, the semi-finished product meeting the thickness requirement is cut into semi-finished products with corresponding widths, and a printing procedure is arranged near a production line or in a garden of a terminal client to finish printing operation.
The thickness of the aluminum foil and the total thickness of the packaging film material are set according to the barrier requirements of the contents and the filling mode of the contents. The printing adopts water-based ink, meets the requirements of high-speed packaging machinery on surface friction coefficient and heat-sealing temperature resistance, and selects high-temperature-resistant gloss oil with higher temperature resistance as a layer on the outermost surface of the ink for full-surface covering. The thickness of the aluminum foil is more than 9 μm when the requirement on the barrier is extremely high, and the thickness of the aluminum foil is more than 25 μm when the final appearance form of the package is a surrounding type (also called clam type) and the package film material needs to be pre-punched and stretched before packaging. The total thickness of the packaging film material is in principle above 100 μm. High barrier function: the thickness of the aluminum foil with the thinnest thickness of more than 9 mu m is selected, the blocking rate of various gases and the blocking rate of moisture are default to 0 g or 0 ml, and the aluminum foil has excellent protection effect on various products; the material structure can also be made into a semi-finished product, a printing procedure is arranged near a production line of a terminal customer or in a garden to finish printing operation, and order miniaturization and quick response can be realized; the environment-friendly printing ink and the printing mode such as water-based printing ink are selected, so that the environment-friendly requirement can be met.
The embodiment of the invention provides a simple material structure mode, and has the characteristics of flexible package of packaging function, display function, high barrier function, low cost, convenient recovery, high recycling value and the like, solves the contradiction of high barrier and complex material structure of the existing flexible package, and solves the pain point of high recovery and decomposition cost and low recycling value; the material structure can also be made into a semi-finished product, a printing procedure is arranged near a production line of a terminal customer or in a garden to finish printing operation, and order miniaturization and quick response can be realized; the environment-friendly printing ink and the printing mode such as water-based printing ink are selected, so that the environment-friendly requirement can be met.
The above embodiments are illustrative of the technical solutions of the present invention, and are not intended to limit the technical solutions of the present invention, and all simple modifications and variations based on the present invention are within the protection scope of the present invention.

Claims (7)

1. A preparation method of a high-barrier packaging material is characterized by comprising the following steps: the composite film is prepared by compounding an aluminum foil and an LDPE film or a PP film, wherein the LDPE film is a multilayer co-extruded polyethylene film, and the PP film is a multilayer co-extruded polypropylene film.
2. The method for preparing the high-barrier packaging material according to claim 1, wherein the method comprises the following steps: the compounding mode is laminating compounding, and the purity of the material is ensured.
3. The method for preparing the high-barrier packaging material according to claim 1, wherein the method comprises the following steps: in the preparation of the LDPE film, 10-60% of a polyethylene elastomer material, 20-40% of a SP2000B polybutylene material and 10-60% of a BP-1 polybutylene material are added into an inner heat sealing layer of a multi-layer co-extruded polyethylene film, and are fully mixed with a base material to form a film through co-extrusion; in the preparation of the PP film, adding 10-15% of a polyethylene elastomer material, 20-40% of an SP2000B polybutylene material and 10-60% of a BP-1 polybutylene material into an inner heat-sealing layer of a multi-layer co-extruded polypropylene film, fully mixing the materials with a base material, and then co-extruding the mixture to form a film; and selecting the LDPE film or PP film material according to filling content and processing parameters, and determining the thickness of the LDPE film or PP film material.
4. The method for preparing the high-barrier packaging material according to claim 1, wherein the method comprises the following steps: fully curing the film after compounding for over 12 hours, releasing the thermal stress generated during compounding operation and smoothing the film; on the basis, the required patterns are printed on the outer surface of the aluminum foil layer, the aluminum foil layer is cut on line or off line after printing is finished, the aluminum foil layer is cut into products with different widths according to requirements, or the cured semi-finished product is cut after thermal stress is released according to the thickness and the width required by the product and the package, the semi-finished product meeting the thickness requirement is cut into semi-finished products with corresponding widths, and a printing procedure is arranged near a production line or in a garden of a terminal client to finish printing operation.
5. The method for preparing the high-barrier packaging material according to claim 1, wherein the method comprises the following steps: the thickness of the aluminum foil is set according to the barrier requirements of the contents and the filling manner of the contents, and finally the total thickness of the packaging film material is set.
6. The method for preparing the high-barrier packaging material according to claim 5, wherein the method comprises the following steps: the thickness of the aluminum foil is more than 9 μm when the barrier requirement is extremely high, the final appearance form of the package is a surrounding type, the packaging film material needs to be pre-punched and stretched to be formed before packaging, the thickness of the aluminum foil is more than 25 μm, and the total thickness of the packaging film material is more than 100 μm.
7. The method for preparing the high-barrier packaging material according to claim 4, wherein the method comprises the following steps: the printing adopts water-based ink, meets the requirements of high-speed packaging machinery on surface friction coefficient and heat sealing temperature resistance, and selects high-temperature-resistant gloss oil with higher temperature resistance as a layer on the outermost surface of the ink for full-surface covering.
CN202210529797.9A 2022-05-16 2022-05-16 Preparation method of high-barrier packaging material Pending CN114734654A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117087261A (en) * 2023-08-21 2023-11-21 安徽紫金新材料科技股份有限公司 Packaging material with high brightness and luster and preparation method thereof
CN117087261B (en) * 2023-08-21 2024-06-07 安徽紫金新材料科技股份有限公司 Packaging material with high brightness and luster and preparation method thereof

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CN1288848A (en) * 1999-09-20 2001-03-28 大日本印刷株式会社 Package material and container
CN2637378Y (en) * 2003-09-01 2004-09-01 上海紫江彩印包装有限公司 Five layer coextrusion high interception package composite film
KR100943319B1 (en) * 2009-02-02 2010-02-19 주식회사 동서 Method of manufacturing nature friendly food-wrapping material
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CN112192892A (en) * 2020-10-09 2021-01-08 蒙佳 Manufacturing process of disposable environment-friendly recyclable aluminum foil cup

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CN1288848A (en) * 1999-09-20 2001-03-28 大日本印刷株式会社 Package material and container
CN2637378Y (en) * 2003-09-01 2004-09-01 上海紫江彩印包装有限公司 Five layer coextrusion high interception package composite film
KR100943319B1 (en) * 2009-02-02 2010-02-19 주식회사 동서 Method of manufacturing nature friendly food-wrapping material
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CN108582807A (en) * 2018-03-24 2018-09-28 常州斯威克光伏新材料有限公司 A kind of preparation method of soft package lithium battery shell encapsulation aluminum-plastic composite membrane
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117087261A (en) * 2023-08-21 2023-11-21 安徽紫金新材料科技股份有限公司 Packaging material with high brightness and luster and preparation method thereof
CN117087261B (en) * 2023-08-21 2024-06-07 安徽紫金新材料科技股份有限公司 Packaging material with high brightness and luster and preparation method thereof

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