CN114771064A - Novel high-low temperature resistant non-deforming packaging film and preparation method thereof - Google Patents

Novel high-low temperature resistant non-deforming packaging film and preparation method thereof Download PDF

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CN114771064A
CN114771064A CN202210360507.2A CN202210360507A CN114771064A CN 114771064 A CN114771064 A CN 114771064A CN 202210360507 A CN202210360507 A CN 202210360507A CN 114771064 A CN114771064 A CN 114771064A
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layer
packaging film
film
bopp
temperature
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CN114771064B (en
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刘东阳
齐雪峰
王明权
吴思
李秀春
王庆庆
李思慧
赵文婷
李惠利
赵冬兵
武雪
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Shanghai Miaokelando Biotechnology R & D Co ltd
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Shanghai Miaokelando Biotechnology R & D Co ltd
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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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/36—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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/20—Metallic material, boron or silicon on organic substrates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/536—Hardness
    • 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
    • B32B2307/7244—Oxygen 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)

Abstract

The application discloses novel high low temperature resistant indeformable packaging film and preparation method thereof, novel high low temperature resistant indeformable packaging film includes: the BOPP layer is an outer layer film of the packaging film; the ALOX PET layer is an interlayer film of the packaging film; the PE layer is an inner layer film of the packaging film; the BOPP layer, the ALOXET layer and the PE layer are sequentially attached from outside to inside. The novel high-temperature and low-temperature resistant non-deforming packaging film can be cooked in a water bath at 85 ℃ for 30min, then quickly cooled to 0 ℃, the packaging film does not change the original shape, the oxygen transmission rate is not more than 2% at (23 ℃) (cm 3/(. square meter. 24h)), and the water vapor transmission rate is not more than 1% at (38 ℃, 90% RH) g/(. square meter. 24 h). Can be cooled and refrigerated quickly without deforming after high-temperature stewing and sterilization, and meets the requirements of attractive appearance, long shelf life and convenient storage and transportation of products.

Description

Novel high-low temperature resistant non-deforming packaging film and preparation method thereof
Technical Field
The application relates to the technical field of packaging materials, in particular to a novel high-low temperature resistant non-deforming packaging film and a preparation method thereof.
Background
The packaging film has a plurality of types of products, wherein the food-grade plastic packaging film has a wider application range.
The plastic packaging film on the traditional market has the problem of easy deformation at high temperature, and has serious restrictions on the aesthetic degree of the product and the control of product microorganisms. Moreover, because the surface hardness of the container is low, the container is easy to wear or scratch, and the container also has serious potential safety hazard problems on the stability of product transportation, whether a consumer can eat the container or not, and the like.
In addition, the packaging film has a strong limitation on the shelf life, storage conditions, and transport radius of the product due to poor light and oxygen barrier properties.
Therefore, it is urgently needed to develop a novel packaging film which can resist high and low temperatures and is not deformed.
Disclosure of Invention
The application mainly aims to provide a novel high-temperature-resistant and low-temperature-resistant non-deforming packaging film and a preparation method thereof, so that the problem that the shape of the packaging film is not deformed due to rapid cooling and refrigeration after high-temperature cooking sterilization is solved, and the requirements of attractiveness, shelf life and convenience in storage and transportation of products are met.
In order to achieve the above object, the present application provides the following techniques:
the application in the first aspect provides a novel high low temperature resistant indeformable packaging film, include:
the BOPP layer is an outer layer film of the packaging film;
an ALOX PET layer which is an interlayer film of the packaging film;
the PE layer is an inner layer film of the packaging film;
the BOPP layer, the ALOX PET layer and the PE layer are sequentially attached from outside to inside.
As an optional embodiment of the present application, optionally, the BOPP layer, the ALOX PET layer, and the PE layer have the following thickness addition percentages:
the ratio of the BOPP layer is as follows: 28-30%;
the AlOX PET layer has the following ratio: 12 to 13 percent;
the proportion of the PE layer is as follows: 50 to 51 percent.
As an optional embodiment of the present application, optionally, the thicknesses of the BOPP layer, the ALOX PET layer, and the PE layer are:
the thickness of the BOPP layer is as follows: 28.2 μm;
the thickness of the ALOX PET layer is as follows: 12.61 μm;
the thickness of the PE layer is as follows: 50.46 μm.
The second aspect of the present application provides a method for preparing the novel high/low temperature resistant non-deforming packaging film, which comprises the following steps:
s1, carrying out corona treatment on the raw material of the BOPP layer;
s2, coating the BOPP layer subjected to the corona treatment in the step S1 with an AC agent, and drying under a first temperature condition;
s3, extruding the BOPP layer coated with the AC agent in the step S2 and the ALOX PET layer subjected to plasticizing treatment into an amorphous film through a T-shaped film in an extruder under a second temperature condition, and performing first compounding to obtain a binary compound;
s4, coating an AC agent on the binary compound, and drying under a third temperature condition;
s5, extruding the binary compound coated with the AC agent and obtained in the step S4 and the plasticized resin PE into an amorphous film through a T-shaped film in an extruder under the fourth temperature condition, and performing secondary compounding;
and S6, curing the secondarily compounded amorphous film at a fifth temperature to obtain the novel high-temperature and low-temperature resistant non-deforming packaging film.
As an optional embodiment of the present application, optionally, in step S1, after the raw material of the BOPP layer is subjected to the corona treatment, the method further includes:
and printing the character information on the corona surface subjected to the corona treatment according to the preset character information.
As an alternative embodiment of the present application, optionally, in step S2 and step S4, the use conditions of the AC agent are both: the solid content of the solution is 5 to 10 percent, and the coating amount is 0.03 to 0.6g/m2。
As an optional embodiment of the present application, optionally, in step S2, the first temperature condition is: 50-80 ℃; in step S4, the third temperature condition is: 50-80 ℃.
As an optional embodiment of the present application, optionally, in step S3, the ALOX PET layer is prepared by:
melting and evaporating the metal aluminum at the high temperature of 1100-1200 ℃ under the high vacuum state to ensure that aluminum vapor is deposited and accumulated on the extruded PET, and performing plasticizing treatment to obtain the ALOX PET.
As an optional embodiment of the present application, optionally, in step S3, the second temperature condition is: 260-280 ℃; in step S5, the fourth temperature condition is: 140 ℃ and 220 ℃.
As an optional embodiment of the present application, optionally, in step S6, the fifth temperature condition is: 50-60 ℃ for 48 h.
Compared with the prior art, this application can bring following technological effect:
the novel high-low temperature resistant non-deforming packaging film prepared by the application can be used for high-temperature sterilization and low-temperature refrigeration and is not deformed. The novel high and low temperature resistant non-deforming packaging film comprises: the BOPP layer is an outer layer film of the packaging film; an ALOX PET layer which is an interlayer film of the packaging film; the PE layer is an inner layer film of the packaging film; the BOPP layer, the ALOX PET layer and the PE layer are sequentially attached from outside to inside. The novel high-temperature and low-temperature resistant non-deforming packaging film can be cooked in a water bath at 85 ℃ for 30min, then is cooled to 0 ℃ quickly, the packaging film does not change the original shape, and the oxygen transmission rate is not more than 2% at (23 ℃) (cm 3/(-square meter 24h)) and the water vapor transmission rate is not more than 1% at (38 ℃, 90% RH) g/(-square meter 24 h). Can be cooled and refrigerated quickly without deforming after high-temperature stewing and sterilization, and meets the requirements of attractive appearance, long shelf life and convenient storage and transportation of products. Meanwhile, the paint has the performances of beauty, hardness, transparency, oxygen permeability, practicability and the like.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic cross-sectional structural view of the novel high and low temperature resistant non-deforming packaging film of the present invention;
FIG. 2 is a schematic view of the preparation process of the novel high and low temperature resistant non-deforming packaging film of the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the application herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
The application in the first aspect provides a novel high low temperature resistant indeformable packaging film, include:
the BOPP layer is an outer layer film of the packaging film;
an ALOX PET layer which is an interlayer film of the packaging film;
the PE layer is an inner layer film of the packaging film;
the BOPP layer, the ALOX PET layer and the PE layer are sequentially attached from outside to inside.
As shown in figure 1, the novel packaging film for high-temperature sterilization and low-temperature refrigeration without deformation is formed by sequentially compounding a first BOPP layer, a second ALOX PET layer and a third PE layer from outside to inside. The ALOX PET layer is arranged between the BOPP layer and the PE layer and clamped in the middle.
The BOPP layer provides tensile property for the packaging film; the ALOX PET layer provides rigidity for the packaging film; the PE layer provides food safety guarantee for the packaging film and meets the requirement of sanitary standard of contact food materials.
Wherein, the ALOX PET layer is prepared by melting and evaporating metal aluminum at 1100-1200 ℃ under the high vacuum state through ALOX, depositing and accumulating the vapor of the aluminum on the extruded PET and plasticizing.
At present, most composite plastic materials such as BOPP, AL, ALOX PET, PE and the like exist in the market, but the package is easy to deform under high-temperature and low-temperature environments, and the performance of a packaging film is very low, so that the packaging film cannot have the performances such as beauty, hardness, transparency, oxygen permeability, practicability and the like.
The problem that the product is cooled and refrigerated rapidly and does not change shape after high-temperature cooking sterilization is solved, the requirements of attractiveness, long shelf life and convenience in storage and transportation of the product are met, and the packaging film is made of specific materials and added in a specific proportion.
As an optional embodiment of the present application, optionally, the BOPP layer, the ALOX PET layer, and the PE layer have the following thickness addition percentages:
the ratio of the BOPP layer is as follows: 28-30%;
the AlOX PET layer comprises the following components in percentage by weight: 12 to 13 percent;
the proportion of the PE layer is as follows: 50 to 51 percent.
As a preferable scheme, the packaging film is formed by compounding 30% of BOPP material providing tensile property, 12% of ALOX PET material providing hardness and 50% of PE material providing food safety, and the specific adding proportion of the packaging film keeps the tensile property and the hardness of the film to play a synergistic effect.
The following is a comparison table for carrying out comparison tests on the packaging film and two types of packaging materials on the market:
Figure BDA0003584935350000061
Figure BDA0003584935350000071
from the above table, it can be seen that: at present, the packages adopted in the market are made of composite plastic materials such as BOPP, AL, ALOX PET, PE and the like, the service performance is poor, and the packages cannot maintain good stability and are easy to deform at high temperature or low temperature.
And adopt the novel high low temperature resistant non-deforming packaging film "that forms by specific material composition and specific proportion of adding that this application provided the ratio of BOPP layer is: 28 to 30 percent; the AlOX PET layer comprises the following components in percentage by weight: 12 to 13 percent; the proportion of the PE layer is as follows: 50-51% ", can be cooked in a water bath at 85 ℃ for 30min, then quickly cooled to 0 ℃, the packaging film does not change the original shape, the oxygen transmission rate is not more than 2 percent at (23 ℃) (cm 3/((square meter) 24h)) detection value, and the water vapor transmission rate is not more than 1 percent at (38 ℃, 90 percent RH) g/(-square meter 24h) detection value. Meanwhile, the paint has the performances of beauty, hardness, transparency, oxygen permeability, practicability and the like.
A composition structure having the best performance in thickness of the present application will be given below.
As an optional embodiment of the present application, optionally, the thicknesses of the BOPP layer, the ALOX PET layer, and the PE layer are:
the thickness of the BOPP layer is as follows: 28.2 μm;
the thickness of the ALOX PET layer is as follows: 12.61 μm;
the thickness of the PE layer is as follows: 50.46 μm.
In this example, one of the preferred embodiments is: the first layer is a BOPP layer with the thickness of 28.2 mu m, and has the characteristics of tensile resistance, high temperature resistance and easy printing; the second layer is an ALOX PET layer with the thickness of 12.61 mu m and has the characteristics of tensile resistance, high temperature resistance and high barrier property; the third layer is a PE layer, and the thickness of the PE layer is 50.46 mu m, and the PE film meets the hygienic standard requirements of food contact materials.
When the packaging film is used for a novel packaging film which is not deformed during high-temperature sterilization and low-temperature refrigeration, the size can be flexibly set according to the product requirement, or a rolled film can be directly provided for users to use.
Example 2
The following provides a method for preparing the novel high/low temperature deformation-resistant packaging film to obtain the product of example 1.
The second aspect of the present application provides a method for preparing the novel high/low temperature resistant non-deforming packaging film, which comprises the following steps:
s1, carrying out corona treatment on the raw material of the BOPP layer;
firstly, the outermost BOPP film raw material is subjected to corona treatment to break chemical bonds of plastic molecules and degrade the plastic molecules, so that the surface roughness and the surface area are increased.
As an optional embodiment of the present application, optionally, in step S1, after the raw material of the BOPP layer is subjected to the corona treatment, the method further includes: and printing the character information on the corona surface subjected to the corona treatment according to the preset character information.
The BOPP film raw material is subjected to corona treatment, the roughness and the surface area of the surface are increased, text information is convenient to print, a corona processor consists of an electrode, a high potentiometer and a silica gel roller, and when voltage passes through an air gap of 25w, continuous discharge can be generated. The text information is preset and set by a user or customization.
S2, coating the BOPP layer subjected to the corona treatment in the step S1 with an AC agent, and drying under a first temperature condition;
and coating the BOPP layer subjected to the corona treatment in the step S1 with an AC agent to increase the firmness. And then the solvent is volatilized after the treatment of the drying temperature of 50-80 ℃, and the semisolid adhesive which really plays a role in adhesion is left. The first temperature condition is: 50-80 ℃.
S3, extruding the amorphous film from the BOPP layer coated with the AC agent in the step S2 and the ALOX PET layer after plasticizing treatment in an extruder through a T-shaped film under the second temperature condition, and carrying out first compounding to obtain a binary compound;
and (3) extruding an amorphous film with plasticized ALOX PET in an extruder through a T-shaped film in a dry state of the semisolid adhesive, and then carrying out first compounding to obtain a binary compound.
The second temperature condition is: 260-280 ℃.
The preparation method of the ALOX PET comprises the following steps:
as an optional embodiment of the present application, optionally, in step S3, the ALOX PET layer is prepared by: melting and evaporating the metal aluminum at the high temperature of 1100-1200 ℃ under the high vacuum state to ensure that aluminum vapor is deposited and accumulated on the extruded PET, and performing plasticizing treatment to obtain the ALOX PET.
S4, coating an AC agent on the binary compound, and drying under a third temperature condition;
coating the binary compound which is compounded for the first time with an AC agent by using a smooth roller, wherein the solid content of the solution is 5% -10%, the coating amount is 0.03-0.6g/m2 to increase the firmness of the solution, then drying the solution to volatilize the solvent, and leaving the semisolid adhesive which really plays a role in bonding, wherein the semisolid adhesive is in a dry state. The third temperature condition is: 50-80 ℃.
S5, extruding the binary compound coated with the AC agent and obtained in the step S4 and the plasticized resin PE into an amorphous film through a T-shaped film in an extruder under the fourth temperature condition, and performing secondary compounding;
in the dry state, the plasticized resin PE is extruded at (temperature), and the PE is subjected to secondary compounding after being subjected to film extrusion of an amorphous film through a T line in an extruder. The fourth temperature condition is: 140 ℃ to 220 ℃.
And S6, curing the secondary compounded amorphous film at a fifth temperature to obtain the novel high-temperature and low-temperature resistant non-deforming packaging film.
The fifth temperature condition is: 50-60 ℃ for 48 h.
And curing the secondarily compounded film to obtain the novel high-low temperature resistant non-deforming packaging film.
As an alternative embodiment of the present application, optionally, in step S2 and step S4, the use conditions of the AC agent are both: the solid content of the solution is 5-10 percent, and the coating amount is 0.03-0.6g/m 2.
The novel high-temperature and low-temperature resistant non-deforming packaging film prepared by the preparation steps is formed by combining three layers, wherein the first layer is a BOPP layer with the thickness of 28.2 mu m, and has the characteristics of tensile resistance, high temperature resistance and easiness in printing; the second layer is an ALOX PET layer, has the thickness of 12.61 mu m, and has the characteristics of tensile resistance, high temperature resistance and high barrier property; the third layer is a PE layer, and the thickness of the PE layer is 50.46 mu m, and the PE film meets the hygienic standard requirements of food contact materials.
Here, the thickness of the adhesive layer of the composite three-layer material such as AC agent will not be described in this embodiment.
In a specific embodiment, as long as the novel high and low temperature resistant non-deforming packaging film consists of "the ratio of the BOPP layer is: 28-30%; the AlOX PET layer has the following ratio: 12 to 13 percent; the proportion of the PE layer is as follows: 50-51% "and, in addition to the preferred thickness values described above, different options for availability may be selected depending on the chemical raw material, such as the AC agent, alternatively selected in the manufacturing process flow and the manufacturing process selected, such as the ALOX PET manufacturing process.
The use of an extruder is merely a selection of one of the extrusion equipment of the present example and is not intended to represent an implementation that can be performed with an extruder alone.
When the packaging film is used for a novel packaging film which is not deformed during high-temperature sterilization and low-temperature refrigeration, the size can be flexibly set according to the product requirement, or a rolled film can be directly provided for users to use.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a novel resistant high low temperature packaging film that does not warp which characterized in that includes:
the BOPP layer is an outer layer film of the packaging film;
an ALOX PET layer which is an interlayer film of the packaging film;
the PE layer is an inner layer film of the packaging film;
the BOPP layer, the ALOX PET layer and the PE layer are sequentially attached from outside to inside.
2. The novel high and low temperature resistant non-deforming packaging film of claim 1, wherein the thickness adding amount percentages of the BOPP layer, the ALOX PET layer and the PE layer are respectively as follows:
the ratio of the BOPP layer is as follows: 28-30%;
the AlOX PET layer has the following ratio: 12 to 13 percent;
the proportion of the PE layer is as follows: 50 to 51 percent.
3. The novel high and low temperature deformation-resistant packaging film as claimed in claim 1, wherein the thicknesses of the BOPP layer, the ALOX PET layer and the PE layer are respectively as follows:
the thickness of the BOPP layer is as follows: 28.2 μm;
the thickness of the ALOX PET layer is as follows: 12.61 μm;
the thickness of the PE layer is as follows: 50.46 μm.
4. A method for preparing a novel high and low temperature resistant non-deforming packaging film as set forth in any one of claims 1-3, which comprises the following steps:
s1, carrying out corona treatment on the raw material of the BOPP layer;
s2, coating the BOPP layer subjected to the corona treatment in the step S1 with an AC agent, and drying under a first temperature condition;
s3, extruding the BOPP layer coated with the AC agent in the step S2 and the ALOX PET layer subjected to plasticizing treatment into an amorphous film through a T-shaped film in an extruder under a second temperature condition, and performing first compounding to obtain a binary compound;
s4, coating an AC agent on the binary compound, and drying under a third temperature condition;
s5, extruding the binary compound coated with the AC agent and obtained in the step S4 and the plasticized resin PE into an amorphous film through a T-shaped film in an extruder under the fourth temperature condition, and performing secondary compounding;
and S6, curing the secondarily compounded amorphous film at a fifth temperature to obtain the novel high-temperature and low-temperature resistant non-deforming packaging film.
5. The method of claim 4, wherein in step S1, after the raw material of the BOPP layer is corona-treated, the method further comprises:
and printing the character information on the corona surface subjected to the corona treatment according to the preset character information.
6. The method of claim 4The method of (5), wherein in both of step S2 and step S4, the AC agent is used under the following conditions: the solid content of the solution is 5 to 10 percent, and the coating amount is 0.03 to 0.6g/m2。
7. The method of claim 4, wherein in step S2, the first temperature condition is: 50-80 ℃; in step S4, the third temperature condition is: 50-80 ℃.
8. The method of manufacturing of claim 4, wherein in step S3, the ALOX PET layer is manufactured by:
melting and evaporating the metal aluminum at the high temperature of 1100-1200 ℃ under the high vacuum state to ensure that aluminum vapor is deposited and accumulated on the extruded PET, and performing plasticizing treatment to obtain the ALOX PET.
9. The method according to claim 4, wherein in step S3, the second temperature condition is: 260-280 ℃; in step S5, the fourth temperature condition is: 140 ℃ and 220 ℃.
10. The method according to claim 4, wherein in step S6, the fifth temperature condition is: 50-60 ℃ for 48 h.
CN202210360507.2A 2022-04-07 2022-04-07 High-low temperature resistant non-deformable packaging film and preparation method thereof Active CN114771064B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008273549A (en) * 2007-04-26 2008-11-13 Toohoo Kako Kk Packaging material having aluminum deposition film and packaging bag using the same
CN103287019A (en) * 2013-05-29 2013-09-11 黄山永新股份有限公司 Plateau bag packaging film and production process thereof
CN204725958U (en) * 2013-04-19 2015-10-28 黄山永新股份有限公司 Be convenient to the high-barrier retort packaging film of direct heating using microwave
CN206217302U (en) * 2016-11-24 2017-06-06 湖北宏裕新型包材股份有限公司 Transparent boiling level composite package film
CN107310237A (en) * 2017-06-15 2017-11-03 东莞市华源包装股份有限公司 A kind of production technology of aluminized complex film and products thereof
CN108673989A (en) * 2018-05-21 2018-10-19 黄山永新股份有限公司 A kind of high-barrier transparency film and its production method suitable for High-Speed Automatic packaging
CN111516335A (en) * 2020-04-22 2020-08-11 江阴宝柏包装有限公司 High-temperature-digestion packaging film with high solvent resistance and low precipitation
CN114193879A (en) * 2021-11-24 2022-03-18 成都众恒印务有限责任公司 High-barrier aluminum-plated composite film and preparation method thereof
CN114274636A (en) * 2021-12-31 2022-04-05 青岛东海包装产业有限公司 High-heat-resistance high-low-temperature-toughness plastic film and preparation method thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008273549A (en) * 2007-04-26 2008-11-13 Toohoo Kako Kk Packaging material having aluminum deposition film and packaging bag using the same
CN204725958U (en) * 2013-04-19 2015-10-28 黄山永新股份有限公司 Be convenient to the high-barrier retort packaging film of direct heating using microwave
CN103287019A (en) * 2013-05-29 2013-09-11 黄山永新股份有限公司 Plateau bag packaging film and production process thereof
CN206217302U (en) * 2016-11-24 2017-06-06 湖北宏裕新型包材股份有限公司 Transparent boiling level composite package film
CN107310237A (en) * 2017-06-15 2017-11-03 东莞市华源包装股份有限公司 A kind of production technology of aluminized complex film and products thereof
CN108673989A (en) * 2018-05-21 2018-10-19 黄山永新股份有限公司 A kind of high-barrier transparency film and its production method suitable for High-Speed Automatic packaging
CN111516335A (en) * 2020-04-22 2020-08-11 江阴宝柏包装有限公司 High-temperature-digestion packaging film with high solvent resistance and low precipitation
CN114193879A (en) * 2021-11-24 2022-03-18 成都众恒印务有限责任公司 High-barrier aluminum-plated composite film and preparation method thereof
CN114274636A (en) * 2021-12-31 2022-04-05 青岛东海包装产业有限公司 High-heat-resistance high-low-temperature-toughness plastic film and preparation method thereof

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