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CN115257101A - Preparation method of high-barrier degradable environment-friendly packaging material - Google Patents

Preparation method of high-barrier degradable environment-friendly packaging material Download PDF

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Publication number
CN115257101A
CN115257101A CN202210845458.1A CN202210845458A CN115257101A CN 115257101 A CN115257101 A CN 115257101A CN 202210845458 A CN202210845458 A CN 202210845458A CN 115257101 A CN115257101 A CN 115257101A
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Prior art keywords
layer
coating
water
barrier
packaging material
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Pending
Application number
CN202210845458.1A
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Chinese (zh)
Inventor
陈雪灵
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Hainan Yiming Environmental Protection Material Technology Co ltd
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Hainan Yiming Environmental Protection Material Technology Co ltd
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Application filed by Hainan Yiming Environmental Protection Material Technology Co ltd filed Critical Hainan Yiming Environmental Protection Material Technology Co ltd
Publication of CN115257101A publication Critical patent/CN115257101A/en
Priority to CN202380011638.2A priority Critical patent/CN117337236A/en
Priority to PCT/CN2023/107226 priority patent/WO2024012526A1/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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • B32B27/06—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
    • B32B27/10—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 paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/24—Organic non-macromolecular coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/28—Multiple coating on one surface
    • 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
    • B32B2307/716—Degradable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7246—Water vapor barrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/80—Medical packaging
    • 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
    • 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
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

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

Abstract

The application provides a preparation method of a high-barrier degradable environment-friendly packaging material, which comprises the steps of laying a film coating layer and a barrier coating on a paper layer; the method also comprises the step of arranging a water-based easily-stripped substrate layer on the bearing layer; depositing a coating layer on the water-based easily-stripped substrate layer in a vapor deposition manner; coating a water-based pore-filling coating on the coating layer; the water-based easy-to-strip substrate layer, the coating layer and the water-based microporous coating layer jointly form a prefabricated high-resistance layer temporarily coated on the bearing layer. Compounding and drying a bearing layer and a prefabricated high-resistance layer on the bearing layer with the front surface of a paper layer; stripping off the bearing layer and recovering; the prefabricated high-resistance layer is retained and bonded to the front surface of the paper layer to form the plastic-free high-resistance material. The preparation method can save the energy consumption of the vacuum pump by more than 68 percent, and the prepared high-barrier degradable environment-friendly packaging material is degradable, pollution-free and ultrahigh in barrier property.

Description

Preparation method of high-barrier degradable environment-friendly packaging material
Technical Field
The application belongs to the technical field of environment-friendly packaging materials, relates to paper-based packaging materials such as liquid food, solid food, powder food, medicine bubble caps, cigarette lining paper and the like, and particularly relates to a preparation method of a high-barrier degradable environment-friendly packaging material.
Background
In order to control plastic pollution and promote environmental protection development, the inventor of the application carries out extensive and deep theoretical research, experimental test and process and equipment development for more than two years on the existing packaging materials such as liquid food packaging boxes, medicine blister packages, cigarette lining paper and the like, and finds some problems in the prior art.
The invention relates to a Chinese patent application (CN 111655474A) barrier film, a laminated packaging material comprising the barrier film and a packaging container made of the laminated packaging material (hereinafter referred to as background art 1), which are submitted by the Rilatval group of Switzerland and finance Ltd, and the technical scheme of the film-coated environment-friendly packaging material is advanced. However, a large amount of polyester film substrates which are not naturally degradable are still used in the packaging material of the packaging material, so that the barrier performance of substances such as oxygen, water vapor, chemicals, aroma and the like of the packaging material is improved. That is, the background art 1 still uses a large amount of polyester film substrates that are not naturally degradable, and does not completely solve the environmental problem.
Chinese utility model patent (CN 210116793U) of kangtong tai boyuan scientific and technical materials ltd "a high-barrier paper-based material packaging bag (hereinafter referred to as background art 2)". The invention patent application (CN 113910733A) filed by Jiangsu Litter green packaging GmbH is a single-layer structure barrier heat-seal packaging paper and a preparation method thereof (hereinafter referred to as background technology 3). Chinese utility model patent CN205171271U of nanjing jinling goldleaf limited "a high-resistance environment-friendly aluminized paper (hereinafter referred to as background art 4)", chinese patent application CN1789478A filed by shanghai goldleaf packaging material limited "production process of vacuum aluminized paper (hereinafter referred to as background art 5)". Chinese patent application CN105463940A "method for producing environment-friendly vacuum aluminized laser paper (hereinafter referred to as background art 6)" filed by sheng li packaging materials limited in kunshan city. The invention relates to a production process of aluminized paper (hereinafter referred to as background art 7) in Chinese patent application (publication No. CN 109338802A) filed by Jiaxing City Tianyue packaging Co., ltd. Chinese patent CN102966007B of shang guan information technology ltd, shaoxing, discloses a method for preparing a fresnel lens vacuum aluminized paper and a product prepared thereby (hereinafter referred to as background art 8). Chinese utility model patent CN215243494U of "a multi-layer vacuum aluminizing laser transfer film composite paper (hereinafter referred to as background art 9)", which is an environmental protection material limited corporation of zijiang spraying aluminum, anhui. A chinese utility model patent (CN 211689669U) applied by the company, santa boyuan scientific and technological materials gmbh, "a high temperature resistant vacuum aluminizing laser paper (hereinafter referred to as background art 10)". Chinese utility model patent (CN 2755161Y) vacuum aluminized paper (hereinafter referred to as background art 11) applied by shanghai spinning, printing, and packaging ltd. Chinese patent application No. CN102002894B of boyuan scientific and technical materials (smoke platform) limited "a vacuum aluminizing ground cardboard containing an electron beam curing coating and a production method thereof (hereinafter referred to as background art 12)". The above background art provides some patented concepts of packaging materials consisting of a heat seal layer, a paper layer, a coating layer (used to replace the current aluminum foil layer), and a barrier coating.
The applicant finds three technical difficulties in the implementation according to the assumption: firstly, the packaging material using the metal aluminum as the high-barrier coating has low barrier property, the shelf life of the liquid such as fruit juice, milk and the like packaged by the packaging bag is not more than three months, and compared with the existing packaging bag using the aluminum foil layer packaging material, the shelf life is obviously shortened. The analysis research finds that the barrier property of the material is causedThe reasons for this low energy are: the water content of the paper is high, generally more than 6%, and even if a large amount of heat energy is consumed for vacuum heating dehumidification, absolute dehumidification is difficult. When the aluminum is directly plated on the paper surface, even if trace residual moisture is vaporized by heat in the vapor deposition process, the vapor deposition plating layer can be broken, and few water vapor through holes are formed on the plating layer, so that the gas leakage and the barrier property of the plating layer are greatly reduced. Secondly, use of Si02、AL2O3The patent assumption of oxides as high-barrier coating packaging materials (background art 2 and 3) cannot be implemented, and has no practical application in patent sense. The specific reason is that Si02、AL2O3The oxides can only be evaporated by an electron gun, and the gasification temperature is above 3000 ℃. At the extremely high temperature, on one hand, the paper (with low thermal conductivity coefficient) can not be rapidly cooled and cooled, and the paper surface can be coked, so that the production can not be continued; on the other hand, in the vapor deposition process, the residual moisture in the paper is vaporized by heat and can break through the coating in the vapor deposition process, and few water vapor through holes are formed on the coating, so that the air leakage and the barrier property of the coating are greatly reduced. And thirdly, the vacuum degree is one of indexes which are strictly required during vacuum coating, and the vacuum degree has a direct relation with the qualities of a coated product, such as color, wear resistance, firmness and the like. Paper typically has a water content of 6% or more due to its high water content. Due to the existence of 6% of moisture in the paper, when the vacuum pump is vacuumized, even if the power of the vacuum pump is increased by three times, the vacuum pump cannot reach 10 percent-3The vacuum requirement of mpa results in high energy consumption, low production rate, low efficiency and high rejection rate. And fourthly, because the plating layer is provided with water vapor through holes, the barrier property is very low, and the coating can only be used as decorative paper with metallic luster.
In conclusion, how to avoid the perforation of the coating by water vapor, how to avoid the coking of the paper surface and how to reduce the energy consumption of the vacuum pump so as to manufacture the degradable environment-friendly packaging material with high barrier property similar to the performance of the existing aluminum foil is a technical problem in front of researchers of the environment-friendly packaging material.
Disclosure of Invention
The purpose of the application is: provides a preparation method of a high-barrier degradable environment-friendly packaging material, which is used for preventing a coating layer from being perforated by water vapor and manufacturing the high-barrier degradable environment-friendly packaging material with the performance similar to that of the existing aluminum foil.
In order to achieve the purpose, the technical scheme of the preparation method of the high-barrier degradable environment-friendly packaging material is as follows.
A preparation method of a high-barrier degradable environment-friendly packaging material comprises the steps of laying a film coating layer and a barrier coating layer on a paper layer; the method is characterized by comprising the following process steps:
s1, using a film such as PET or BOPP with high tensile strength, good thermal stability, low thermal shrinkage rate and flat and smooth surface as a bearing layer, and firstly laying a water-based easily-stripped substrate layer (with the stripping force of 0.1-0.2N/25mm is best) on the back of the bearing layer; then put into the vacuum chamber (the vacuum degree is more than or equal to 10)-3mpa) vacuum chamber, vapor deposition of Si0 onto an aqueous easy-peel liner layer2Or/and AL2O3Coating the film layer; finally, coating a water-based hole-filling coating on the coating layer; the water-based easy-to-strip substrate layer and the coating layer and other layers jointly form a prefabricated high-resistance (isolating) layer temporarily coated on the bearing layer for later stripping. The proposal of laying the water-based porous coating is that the coating layer still forms some sand holes caused by various unexpected factors such as dust and the like in the vapor deposition forming process, and the technical measures of coating the water-based porous coating are adopted in order to close the sand holes to improve the barrier property and protect the coating layer to avoid accidental scratches of the roll surface; research shows that a mixed solution prepared from three chemical raw materials of 50% of methyl orthosilicate, 30% of V-aminopropyl triethoxysilane, 20% of zirconium propanol and the like is coated on a coating layer, heated to 106 ℃ and kept for 5-7 seconds, then coiled, kept in a 65 ℃ incubator for 7-8 hours after being coiled, and taken out for natural cooling after being fully cured to form a water-based microporous coating with very good performance;
s2, coating a high-resistance water-proof composite glue layer on the prefabricated high-resistance layer, compounding the prefabricated high-resistance layer and the front side of the paper layer and drying; then stripping off the bearing layer and recovering; the prefabricated high-resistance layer is retained and bonded to the front surface of the paper layer to form the plastic-free high-resistance material;
and S3, preferably coating a water-based barrier coating (capable of being in direct contact with food) on the prefabricated high-resistance layer without the plastic high-resistance material to form the high-barrier degradable environment-friendly packaging material.
Therefore, on one hand, the coating layer is formed on the moisture-free special bearing layer in advance, and the traditional process of feeding paper layers with higher moisture content into a vacuum chamber for evaporation in the background art 2-12 is abandoned, so that vapor perforation does not occur in the vapor deposition forming process; on the other hand, when the bearing layer and the prefabricated high-resistance layer on the bearing layer are compounded with the paper layer, the solidified coating layer with higher strength can not be penetrated even if water vapor exists. Therefore, the process method can successfully prepare the high-barrier degradable environment-friendly packaging material; on the other hand, since there is no moisture in the bearing layer, it is easy to reach 10 when vacuum is pumped-3Compared with the background technology 2-12, the vacuum requirement of mpa reduces the energy consumption of the vacuum pump by more than 68%, and has high production speed, high efficiency and low rejection rate.
In order to enable the non-plastic high-resistance material and the non-plastic ultrahigh-resistance material prepared by the process method to be used for preparing packages such as milk cartons and the like, the preparation method of the high-resistance degradable environment-friendly packaging material is preferably characterized by comprising the following steps of: and coating a water-based heat sealing adhesive coating on the back surface of the paper layer.
Preferably, the preparation method of the high-barrier degradable environment-friendly packaging material is characterized by comprising the following steps: coating a high-resistance waterproof composite glue layer between the water-based porous coating and the paper layer; wherein, the paper layer adopts breathable moisture absorption paper so as to ensure that the moisture in the water-based composite glue layer can be permeated and evaporated; on the one hand, to retain and adhere the preformed high-barrier layer to the paper layer and, on the other hand, to further improve the barrier properties of the packaging material.
In practice, the process method finds that after the bearing layer is stripped, the bearing layer is retained and adhered to the coating layer on the paper layer, pulling micropores with random positions and numbers are inevitably generated, and the pulling micropores can cause air leakage of the coating layer and greatly reduce the barrier property. In order to avoid the generation of the pulling micropores, the applicant invests millions of yuan of research and development cost, repeated experiments are carried out by adopting conventional technical measures of thickening the coating layer, and tests show that the technical measures of thickening the coating layer can not completely avoid the generation of the pulling micropores. Quite unexpectedly, researchers have tried the following innovative process to achieve better results.
Preferably, the preparation method of the high-barrier degradable environment-friendly packaging material is characterized by comprising the following steps: compounding and drying the non-plastic high-resistance material and the prefabricated high-resistance layer on the bearing layer; then stripping off the bearing layer and recovering; the preformed high barrier layer (on the carrier layer) is retained and bonded to the non-plastic high barrier material to form a non-plastic ultra high barrier material having multiple (preferably 2-3) preformed high barrier layers.
Therefore, in the plastic-free ultrahigh-resistance material, the air leakage holes such as the scratch micropores, the sand holes, the water vapor perforation holes and the like on the two adjacent coating layers are mutually staggered in most cases, do not coincide, the probability of complete coincidence is almost zero, and researches show that the coincidence rate is less than or equal to 10-7And (4) finishing. And the air leakage holes are blocked by the adjacent coating layers instead of being compensated by the organic barrier coating. The air leakage path between two nearest air leakage holes of the upper layer and the lower layer is necessarily very long, so that the barrier property can be greatly improved. The comparative experiment shows that compared with the non-plastic high-resistance material with the same thickness, the non-plastic high-resistance material has the advantages that the barrier property is improved by multiple times, for example: the milk and the fruit juice filled into the plastic-free high-resistance material packaging bags with the same thickness have the quality guarantee period of at most 3 months, while the milk and the fruit juice filled into the plastic-free ultrahigh-resistance material packaging bags with the same thickness have the quality guarantee period of more than 12 months, and even do not deteriorate for 3 years.
Preferably, the preparation method of the high-barrier degradable environment-friendly packaging material is characterized by comprising the following steps: multiple prefabricated high-resistance layers are retained and bonded on the paper layer; wherein, the strain micropores, the sand holes and the water vapor perforations on the upper and the lower coating layers are mutually staggered, and the coincidence rate is less than or equal to 10-7。
Although the multiple prefabricated high-resistance layer compounding method can block the strain micropores to prepare the plastic-free ultrahigh-resistance material, the process is complex and is only suitable for preparing products with longer quality guarantee period (for example, more than 12 months). For products with moderate shelf life requirements (e.g., 6 months), there is little waste. In order to avoid the generation of the pulling micropores as much as possible, the applicant tests and experiments hundreds of formulas of the water-based easily-stripped substrate layer with expensive formulas, so that the generation of the pulling micropores cannot be avoided, and the satisfactory effect cannot be achieved all the time. Surprisingly, researchers have tried innovative processes for stripping the carrier layer by quenching, and better results have been obtained.
Preferably, the preparation method of the high-barrier degradable environment-friendly packaging material is characterized by comprising the following steps: coating the bearing layer and the preformed high-resistance layer and the paper layer which come out from the high-temperature oven with the temperature higher than 100 ℃ on a cold roller with the temperature of 4-12 ℃ immediately for rapid cooling; stripping the bearing layer at the low temperature of 4-12 ℃; the time for the back surface of the bearing layer to be tightly attached to the cold roll is preferably 0.5-3 seconds so as to be sufficiently cooled; for sufficient cooling, the bearing layer, the prefabricated high-resistance layer and the paper layer are preferably coated on a plurality of cooling rollers at 4-12 ℃ for multi-stage cooling; then, the non-plastic high-resistance material formed by the prefabricated high-resistance layer and the paper layer is sent into a coating unit and heated to normal temperature, and finally, the water-based barrier coating is coated on the water-based easily-stripped substrate layer to prepare the high-barrier degradable environment-friendly packaging material. Thus, the number of the pulling micropores is greatly reduced, and statistics show that the number of the pulling micropores is reduced by at least ten times. Compared with a method for changing the formula of the water-based easily-stripped substrate layer, the method is low in cost and easy to implement. Practice proves that: when the temperature of the prefabricated high-resistance layer and the paper layer is reduced to 4-12 ℃, the film forming property and the toughness of the aqueous easy-to-peel substrate layer are greatly improved, and the aqueous easy-to-peel substrate layer is easy to completely peel from the bearing layer, so that the strain micropores can be reduced. It is emphasized here that: the applicant researches that when the temperature is reduced to 4-12 ℃, the film forming property and toughness of the water-based easily-peelable substrate layer are greatly improved, the water-based easily-peelable substrate layer is easily and completely peeled off from the bearing layer, and the pulling damage micropores are greatly reduced.
Preferably, the preparation method of the high-barrier degradable environment-friendly packaging material is characterized by comprising the following steps: the water-based easy-to-peel substrate layer is a water-soluble laminating layer or a film coating layer (but not a coating), and the peeling force between the water-soluble laminating layer or the film coating layer and the bearing layer is set to be 0.1-0.2N/25mm. The water-soluble laminating layer or film coating layer is preferably a polyethylene oxide film. Therefore, because the polyethylene oxide film layer is a film with higher strength and is easy to completely peel off from the bearing layer, the pulling damage of micropores can be avoided, and tests show that the pulling damage of micropores is hardly generated; in contrast, if the aqueous release liner layer is a release agent coating, the micropores are more scratched. Therefore, the water-based easily-peelable substrate layer adopts the polyethylene oxide film layer, and has remarkable beneficial technical effects. The inventor of the present application has tried to replace PET or BOPP with a water-soluble film such as a polyethylene oxide film as a carrier layer, and experiments have found that the polyethylene oxide film has low tensile strength, poor thermal stability and high thermal shrinkage, so the inventor of the present application has only to coat the polyethylene oxide film on a carrier layer such as PET or BOPP with high tensile strength, good thermal stability, low thermal shrinkage and smooth and clean surface to make up for the performance deficiency. In other words, experiments show that a water-soluble film such as a polyethylene oxide film can not directly replace PET or BOPP as a bearing layer, but can replace the existing release agent coating with excellent performance.
Preferably, the preparation method of the high-barrier degradable environment-friendly packaging material is characterized by comprising the following steps: the coating layer is vapor-deposited 73-75% of Si02And 25-27% of AL2O3And (5) mixing the coating layer. The study shows that: the barrier property of the mixture ratio is highest, and the milk and the fruit juice in the packaging bag have the shelf life of more than 12 months, even 3 years without deterioration.
Preferably, the preparation method of the high-barrier degradable environment-friendly packaging material is characterized by comprising the following steps: coating a Teflon coating or a silicone oil coating on the surface of the bearing layer to prepare a carrier with the stripping force of 0.1-0.2N/25mm; the barrier coating is used as a water-based easily-stripped substrate layer and is coated on the Teflon coating or the silicone oil coating. Thus, the water-based easily-stripped substrate layer is omitted, the material cost is saved, the process of coating the barrier coating is omitted, and the basic fastness of the packaging material is enhanced.
Preferably, the preparation method of the high-barrier degradable environment-friendly packaging material is characterized by comprising the following steps: and coating a preset high-resistance layer on the front surface or the back surface of the stripped and recovered bearing layer so as to recycle the bearing layer for multiple times.
Preferably, the technical scheme of the high-barrier degradable environment-friendly packaging material is as follows.
A high-barrier degradable environment-friendly packaging material comprises a paper layer, a coating layer and a barrier coating; the method is characterized in that: stripping the bearing layer, and retaining and bonding a prefabricated high-resistance layer formed by the water-based easily-stripped substrate layer, the coating layer and the water-based porous coating (and the like) on the front surface of the paper layer; preferably, a water-based barrier coating is further applied over the coating.
Thus, on the one hand, the coating layer is formed on the moisture-free bearing layer in advance, so that the coating layer is not perforated by water vapor in the vapor deposition forming process; on the other hand, when the bearing layer is compounded with the paper layer, the solidified coating layer can not be penetrated even if water vapor exists. As such, the present packaging material has high barrier properties and degradability.
In practice, it is found that after the carrier layer is stripped, the carrier layer is adhered and retained on the coating layer on the paper layer, and a plurality of randomly-positioned and-numbered pulling micropores are inevitably generated, and the pulling micropores can cause air leakage of the coating layer and greatly reduce the barrier property. In order to avoid the generation of the pulling micropores, researchers spend nearly one year and over a million yuan of research cost, repeated experiments are carried out by adopting the technical measures of thickening the coating layer, and tests show that the technical measures of thickening the coating layer can not completely avoid the generation of the pulling micropores.
Preferably, the high-barrier degradable environment-friendly packaging material is characterized in that: multiple prefabricated high-resistance layers are retained and bonded on the paper layer; wherein, the strain micropores, the sand holes and the water vapor perforations on the upper and the lower coating layers are mutually staggered and do not coincide.
Therefore, the non-plastic ultrahigh-resistance material is prepared, and the probability of complete superposition is almost zero because of dislocation of air leakage holes such as damaged micropores, sand holes, water vapor perforation and the like on the upper coating layer and the lower coating layer. And the inorganic coating layer is used for blocking the ultrahigh-resistance material, but the organic coating layer is not used for making up the ultrahigh-resistance material, so that the blocking performance of the ultrahigh-resistance material without plastic is greatly improved. The comparative experiment shows that compared with the non-plastic high-resistance material with the same thickness, the barrier property of the non-plastic high-resistance material is improved by multiple times, for example: the milk and the fruit juice filled into the plastic-free high-resistance material packaging bags with the same thickness have the shelf life of at most 3 months, while the milk and the fruit juice filled into the plastic-free ultrahigh-resistance material packaging bags with the same thickness have the shelf life of more than 12 months, even 3 years without deterioration.
Preferably, the high-barrier degradable environment-friendly packaging material is characterized in that: a high-water-resistance composite glue layer is coated between the water-based porous coating and the paper layer, wherein the paper layer is made of moisture-absorbing and breathable paper (non-breathable non-moisture-absorbing paper such as laminating paper, glassine paper, oil-impregnated paper and the like cannot be used); on the one hand, to retain and bond the preformed high-barrier layer to the paper layer and, on the other hand, to further improve the barrier properties of the packaging material.
For convenience, the terms front, back, etc. are used herein in the relative sense of front and back, and if one side is referred to as front, the other side will necessarily be back, and vice versa.
Compared with the prior art, the application can produce the following beneficial technical effects.
The first one, degradable, nuisanceless: in the high-barrier degradable environment-friendly packaging material and the packaging material thereof, only the water-based materials such as the paper layer, the water-based porous coating layer and the water-based barrier layer which can be naturally degraded are contained, and Si02Coating layer or/and AL2O3And harmless inorganic substances such as vapor coating and the like.
Secondly, the composite material has ultrahigh barrier property: the barrier property is close to that of the packaging material and the packaging material which use the aluminum foil layer as the barrier layer currently. Compared with the prior art 2-12, the shelf life of the product in the plastic-free ultrahigh-resistance material can be prolonged to more than one year, and the shelf life of the product in the plastic-free ultrahigh-resistance material with multiple prefabricated high-resistance layers can be prolonged to even three years.
Thirdly, the method is environment-friendly and pollution-free: can be recycled and reused, and can be naturally degraded and broken into harmless inorganic powder even if not recycled. No pollution to the environment.
Fourthly, energy conservation: because the bearing layer has no moisture, the vacuum degree is easy to reach 10-3Compared with the background art 2-12, the vacuum requirement of the mpa reduces the energy consumption of the vacuum pump by more than 68%.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structure diagram of a carrier layer and a preformed high-resistance layer thereof in this application (embodiment a).
Fig. 2 is a schematic cross-sectional structure diagram of a non-plastic high-resistance material in the present application (example two).
Fig. 3 is a schematic cross-sectional structural view of a plastic-free ultra-high resistance material in the present application (example three).
FIG. 4 is a schematic plan view of the randomly distributed water vapor perforations in the coatings of prior art 2-12.
FIG. 5 is a schematic plan view of randomly distributed strained micro-holes in a coating layer.
Fig. 6 is a schematic diagram of the leakage path of the plastic-free high-resistance material in fig. 2.
Fig. 7 is a schematic view of the leakage path of the plastic-free ultra-high resistance material in fig. 3.
The reference numbers indicate: 1-paper layer, 2-water-based composite glue layer, 3-prefabricated high-resistance layer, 301-water-based porous coating, 302-coating layer, 303-water-based easily-stripped substrate layer, 4-bearing layer, 5-water-based barrier coating, 6-heat-sealing coating, 7-water vapor perforation, 8-pulling micropore and 9-air leakage path.
Detailed Description
The first embodiment.
As shown in fig. 1, fig. 1 is a schematic cross-sectional structure diagram of a carrier layer and a prefabricated high resistance layer thereof.
A25-micron PET film is adopted as the bearing layer 4, and a polyethylene oxide film layer with the thickness of 6-12 microns is firstly laminated on the front surface of the bearing layer 4 (the stripping force is preferably 0.1-0.2N/25 mm) by using a laminating machine to be used as the water-based easy-stripping substrate layer 303. Then the vacuum degree is more than or equal to 10-3Vapor deposition of Si0 onto an aqueous easy-to-peel liner layer 303 in an mpa vacuum chamber2Coating layer or/and AL2O3Oxide coatings 302 such as coatings; finally, coating a water-based porous coating 301 such as acrylic emulsion on the coating layer 302 to plug micropores such as sand holes on the coating layer 302; the water-based easy-stripping substrate layer 303, the coating layer 302, the water-based porous coating layer 301 and other layers form a prefabricated high-resistance (separation) layer 3 together, and the prefabricated high-resistance (separation) layer is temporarily coated on the bearing layer 4 for later stripping.
In the above steps, the reason why the water-based porous coating 301 is applied is that some sand holes caused by many unexpected factors such as dust are still formed in the vapor deposition forming process of the coating layer 302, and in order to fill the sand holes and improve the barrier property, technical measures for applying the water-based porous coating 301 are taken.
In the above steps, the polyethylene oxide film layer as the aqueous easy-to-peel substrate layer 303 has strong film forming property and degradability, and almost has the same characteristics as a thin film, so that the polyethylene oxide film layer is easy to completely peel off from the carrier layer 4, and therefore, the pulling damage micropores 8 can be reduced, and tests show that the pulling damage micropores 8 are hardly generated. Therefore, the water-based easily-stripped substrate layer 303 adopts a polyethylene oxide film layer, and has a remarkable beneficial technical effect.
In the above steps, the aqueous easy-to-peel substrate layer 303 may also be prepared by using an aqueous low-viscosity coating, for example, a formula of 1015 parts of mica powder, 58 parts of silicon dioxide, 1522 parts of borax, 38 parts of talcum powder, 1218 parts of graphite emulsion, 1116 parts of an emulsifier, 25 parts of a defoaming agent, 2025 parts of an organic silicon resin, 1624 parts of a polyurethane adhesive, and 712 parts of a hydrophilic chain extender. The aqueous low-viscosity coating with the formula also has good easy-stripping characteristic, and can be used for coating and setting the aqueous easy-stripping substrate layer 303. Of course, one skilled in the art can select a variety of suitable low viscosity waterborne coatings, following a peel force of 0.1-0.2N/25mm.
Preferably, 73-75% Si0 is used2And 25-27% of AL2O3The mixed raw materials are evaporated. The study showed that: the coating layer 302 formed by the formula has the highest barrier property, and milk and fruit juice are filled into a packaging bag made of the coating layer, so that the quality guarantee period is more than 12 months, and even 3 years can not deteriorate. Conversely, less than 72% and more than 75% Si0 in the formulation2And less than 25% and more than 27% AL2O3The formed plating layer 302 has low barrier properties. In other words, the window of the formulation with the highest barrier is narrow, si02Only 75% -72% =3%, AL2O3Only 27% -25% =2%, and the narrow formula window data is discovered by the inventor of the applicant accidentally, so that the method is not easy to use and has a very obvious technical effect.
The second embodiment.
As shown in fig. 2, fig. 2 is a schematic cross-sectional structure diagram of a non-plastic high-resistance material.
Purchasing one kind of the material with the concentration of 76g/m2The non-fluorescent white lining paper is used as a paper layer 1, and an acrylic ester emulsion is selected as a water-based composite glue layer 2. Compounding the prefabricated high-resistance layer 3 on the bearing layer 4 facing to the front side of the paper layer 1 by adopting a wet compounding process, and drying at a high temperature of more than 100 ℃; then coating the mixture on a plurality of cooling rollers at 4-12 ℃ for rapid cooling; stripping and recovering the bearing layer 4 at the low temperature of 4-12 ℃, wherein the back surface of the bearing layer 4 is tightly attached to the cold roll for 0.5-3 seconds to reserve enough time and fully cool; then, the plastic-free high-resistance material formed by the prefabricated high-resistance layer 3 and the paper layer 1 is sent to a coating unit and heated to normal temperature. Finally, a layer of acrylic ester emulsion is coated on the water-based easily-stripped substrate layer 303 exposed after the bearing layer 4 is stripped to serve as a water-based barrier coating 5, and then the non-plastic high-resistance material can be prepared. The plastic-free high-resistance material can replace the existing aluminum foil lining paper, for example, the aluminum foil lining paper in the existing cigarette box.
Thus, the number of the pulling micropores 8 is greatly reduced, and statistics show that the number of the pulling micropores 8 is reduced by at least ten times. Compared with the traditional method for changing the formula of the water-based easily-stripped substrate layer 303, the method is low in cost and easy to implement. Practice proves that: when the temperature of the prefabricated high-resistance layer 3 and the paper layer 1 is reduced to 4-12 ℃, the film forming property and the toughness of the water-based easily-stripped substrate layer 303 are greatly improved, and the substrate layer is easily and completely stripped from the bearing layer 4, so that strain micropores 8 can be reduced. It is emphasized here that: the applicant of the present invention finds that when the temperature is reduced to 4-12 ℃, the film forming property and toughness of the aqueous easy-to-peel backing layer 303 are greatly improved, and the aqueous easy-to-peel backing layer 303 is easily and completely peeled off from the bearing layer 4, so that the strain micro-pores 8 are greatly reduced.
Example three.
Preferably, as shown in fig. 3, the plastic-free high-resistance material prepared on the above example is compounded, dried, retained and bonded with 1-2 layers of prefabricated high-resistance layers 3 to prepare the plastic-free ultrahigh-resistance material.
Thus, the scratch micropores 8, the sand holes and the water vapor through holes 7 on the upper and lower coating layers 4 are necessarily staggered with each other, and the probability of complete coincidence is almost zero. And the gas leakage path 9 between two nearest gas leakage holes of the upper layer and the lower layer is inevitably very long because the gas leakage path is completely blocked by the other inorganic coating layer 302 instead of being simply compensated by the water-based barrier coating layer 5, so that the barrier property of the material is greatly improved, in other words, the plastic-free ultrahigh-resistance material can be prepared by adopting the process method of the embodiment.
Fig. 6 is a schematic diagram of the leakage path of the plastic-free high-resistance material in fig. 2. Fig. 7 is a schematic view of the leakage path of the plastic-free ultra-high resistance material in fig. 3. Comparing the two figures, it can be seen that the leakage path 9 with the multiple pre-made high resistance layers 3 is the longest, and the leakage path 9 in fig. 7 is lengthened hundreds of times compared with the leakage path 9 in fig. 6, which is the most difficult reason for leakage. In other words, the plastic-free high-resistance material with the multiple prefabricated high-resistance layers 3 has ultrahigh resistance.
The back of the paper layer 1 on the non-plastic high-resistance material prepared by the process is coated with a water-based heat-sealing coating 6, and then the packaging bag for milk and fruit juice can be manufactured by using the coating.
The comparative experiment shows that compared with the non-plastic high-resistance material with the same thickness, the barrier property of the non-plastic high-resistance material is improved by multiple times, for example: the milk and the fruit juice filled into the plastic-free high-resistance material packaging bags with the same thickness have the shelf life of at most 3 months, while the milk and the fruit juice filled into the plastic-free ultrahigh-resistance material packaging bags with the same thickness have the shelf life of more than 12 months, even 3 years without deterioration.
The technical solutions provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall into the protection scope of the present application.

Claims (9)

1. A preparation method of a high-barrier degradable environment-friendly packaging material comprises the steps of laying a film coating layer and a barrier coating layer on a paper layer; the method is characterized by comprising the following process steps:
s1, adopting a film with high tensile strength, good thermal stability, low thermal shrinkage and flat and smooth surface as a bearing layer; firstly, covering a water-based easily-stripped substrate layer on the back of a bearing layer; then placing the substrate into a vacuum chamber, and depositing a coating layer on the water-based easy-to-peel substrate layer in a vapor deposition manner; finally, coating a water-based pore-filling coating on the coating layer; the water-based easy-to-strip substrate layer, the coating layer and the water-based microporous coating layer together form a prefabricated high-resistance layer temporarily coated on the bearing layer for later stripping;
s2, compounding and drying the prefabricated high-resistance layer and the front side of the paper layer; then stripping off the bearing layer and recovering; the preformed high-resistance layer is retained and bonded to the front surface of the paper layer to form the plastic-free high-resistance material.
2. The preparation method of the high-barrier degradable environment-friendly packaging material according to claim 1, characterized by comprising the following steps: and the prefabricated high-resistance layer is also coated with a water-based barrier coating.
3. The preparation method of the high-barrier degradable environment-friendly packaging material according to claim 1, characterized by comprising the following steps: and coating a water-based heat sealing adhesive coating on the back surface of the paper layer.
4. The preparation method of the high-barrier degradable environment-friendly packaging material according to claim 2, characterized by comprising the following steps: and coating a water-based heat sealing adhesive coating on the back surface of the paper layer.
5. The preparation method of the high-barrier degradable environment-friendly packaging material according to claim 1, 2, 3 or 4, characterized in that: coating a high-resistance waterproof composite glue layer between the water-based porous coating and the paper layer; wherein the paper layer is made of breathable moisture absorption paper.
6. The preparation method of the high-barrier degradable environment-friendly packaging material according to claim 1, 2, 3 or 4, characterized in that: coating the bearing layer and the preformed high-resistance layer and the paper layer which come out from the high-temperature oven with the temperature higher than 100 ℃ on a cold roller with the temperature of 4-12 ℃ immediately for rapid cooling; and peeling off the bearing layer at the low temperature of 4-12 ℃.
7. The preparation method of the high-barrier degradable environment-friendly packaging material according to claim 1, 2, 3 or 4, characterized in that: the water-based easy-to-peel liner layer is a water-soluble laminating layer or a water-soluble laminating layer; the peeling force between the water-based easy-peeling substrate layer and the bearing layer is set to be 0.1-0.2N/25mm.
8. The preparation method of the high-barrier degradable environment-friendly packaging material according to claim 1, 2, 3 or 4, characterized in that: the coating layer is vapor-deposited 73-75% of Si02And 25-27% of AL2O3And (5) mixing the coating layer.
9. The preparation method of the high-barrier degradable environment-friendly packaging material according to claim 1, 2, 3 or 4, characterized in that: coating a Teflon coating or a silicone oil coating on the surface of the bearing layer to obtain a peeling force of 0.1-0.2N/25mm; the barrier coating is used as a water-based easily-stripped substrate layer and is coated on the Teflon coating or the silicone oil coating.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024012526A1 (en) * 2022-07-15 2024-01-18 海南一铭环保材料科技有限公司 Preparation method for high-barrier degradable environmentally friendly packaging material, and packaging material and packaging item
CN117754941A (en) * 2023-06-05 2024-03-26 拍拍看(海南)人工智能有限公司 Preparation method of high-barrier packaging material, package and prefabricated film

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002316384A (en) * 2001-04-23 2002-10-29 Toppan Printing Co Ltd Environment-friendly packaging material
CN1417415A (en) * 2001-11-05 2003-05-14 汕头市绿新包装材料有限公司 Making process and product of color vaccum aluminium plating paper as package material
CN106087590A (en) * 2016-06-21 2016-11-09 上海睿途新材料科技有限公司 The wrapping paper of a kind of band halo of many colours effect and production technology thereof
CN110216944A (en) * 2019-06-28 2019-09-10 安徽紫江喷铝环保材料有限公司 The heat sealable anti-counterfeit laser cup bucket moulding material of high obstructing degradable and its preparation
CN110846931A (en) * 2019-11-13 2020-02-28 烟台博源科技材料股份有限公司 Novel environment-friendly high-barrier direct plating paper and preparation process thereof
CN111907161A (en) * 2020-07-13 2020-11-10 厦门长塑实业有限公司 Transparent ultrahigh-barrier composite film and preparation method thereof
WO2021228695A1 (en) * 2020-05-11 2021-11-18 Constantia Pirk Gmbh & Co. Kg Paper packaging material having improved resuspendability of the cellulose fibres
US20220112664A1 (en) * 2020-10-09 2022-04-14 The Procter & Gamble Company Methods of producing biodegradable and recyclable barrier paper laminate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN218366846U (en) * 2022-07-15 2023-01-24 海南一铭环保材料科技有限公司 High-barrier degradable environment-friendly packaging material and packaging material thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002316384A (en) * 2001-04-23 2002-10-29 Toppan Printing Co Ltd Environment-friendly packaging material
CN1417415A (en) * 2001-11-05 2003-05-14 汕头市绿新包装材料有限公司 Making process and product of color vaccum aluminium plating paper as package material
CN106087590A (en) * 2016-06-21 2016-11-09 上海睿途新材料科技有限公司 The wrapping paper of a kind of band halo of many colours effect and production technology thereof
CN110216944A (en) * 2019-06-28 2019-09-10 安徽紫江喷铝环保材料有限公司 The heat sealable anti-counterfeit laser cup bucket moulding material of high obstructing degradable and its preparation
CN110846931A (en) * 2019-11-13 2020-02-28 烟台博源科技材料股份有限公司 Novel environment-friendly high-barrier direct plating paper and preparation process thereof
WO2021228695A1 (en) * 2020-05-11 2021-11-18 Constantia Pirk Gmbh & Co. Kg Paper packaging material having improved resuspendability of the cellulose fibres
CN111907161A (en) * 2020-07-13 2020-11-10 厦门长塑实业有限公司 Transparent ultrahigh-barrier composite film and preparation method thereof
US20220112664A1 (en) * 2020-10-09 2022-04-14 The Procter & Gamble Company Methods of producing biodegradable and recyclable barrier paper laminate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024012526A1 (en) * 2022-07-15 2024-01-18 海南一铭环保材料科技有限公司 Preparation method for high-barrier degradable environmentally friendly packaging material, and packaging material and packaging item
CN117754941A (en) * 2023-06-05 2024-03-26 拍拍看(海南)人工智能有限公司 Preparation method of high-barrier packaging material, package and prefabricated film

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