CN110901199A - Traceable high-barrier pesticide packaging film, packaging bag formed by traceable high-barrier pesticide packaging film and preparation process of traceable high-barrier pesticide packaging film - Google Patents
Traceable high-barrier pesticide packaging film, packaging bag formed by traceable high-barrier pesticide packaging film and preparation process of traceable high-barrier pesticide packaging film Download PDFInfo
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- 239000012785 packaging film Substances 0.000 title claims abstract description 41
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- 238000000034 method Methods 0.000 claims abstract description 15
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Images
Classifications
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
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- B29L2031/712—Containers; Packaging elements or accessories, Packages
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B2307/00—Properties of the layers or laminate
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Abstract
The invention relates to a traceable high-barrier pesticide packaging film, a packaging bag formed by the same and a preparation process of the packaging bag. The traceable high-barrier pesticide packaging bag comprises the traceable high-barrier pesticide packaging film. The traceable high-barrier pesticide packaging film has high barrier property, can block moisture and gas to a greater degree and prevent pesticide smell from diffusing. The pesticide packaging bag prepared by the method utilizes the variable code spraying device to spray codes for one bag and one code for the printed packaging bag, and plays a traceable role.
Description
Technical Field
The invention relates to the field of pesticide packaging, in particular to a traceable high-barrier pesticide packaging film, a packaging bag formed by the same and a preparation process thereof.
Background
The materials applied to pesticide packaging have special requirements due to the toxicity danger of packaged objects besides the requirements on common packaging materials, for example, the packaging materials of pesticides are required to ensure that the pesticides are not damaged in normal storage and transportation and meet the requirements of corresponding packaging material standards. The outer packaging material for the pesticide should be strong and durable to ensure that the contents are not damaged. The inner packing material of the pesticide is firm and durable, does not generate any physical and chemical action with the pesticide to damage the product, does not swell and leak, and does not affect the quality of the product. At present, pesticide packaging bags are difficult to separate moisture and smell, a thickening method is usually adopted in the field for sealing and packaging, however, thick material packaging usually needs higher temperature, and the material is not high-temperature resistant and is difficult to achieve a better sealing effect, so that the performance of separating smell is poor.
In order to mark pesticides, various pesticides are marked by using a mark strip with a characteristic color which is not fading. The color marking is characterized in that a color marking strip parallel to the bottom edge is added below the label and the outer packaging container, and the marking strip can only distinguish the pesticide types and cannot contain more information.
Disclosure of Invention
The invention aims to solve the problem of overcoming the defects in the prior art and provides a traceable high-barrier pesticide packaging film. Meanwhile, the pesticide packaging film has the effects of high barrier and high temperature resistance.
The invention also provides a pesticide packaging bag containing the traceable high-barrier pesticide packaging film, and the two traceable high-barrier pesticide packaging films are attached by adopting a heat sealing process to obtain the square packaging bag with three heat sealing edges.
The invention also provides a preparation method of the traceable high-barrier pesticide packaging film, which comprises the following process flows of: printing → code spraying → interlaminar compounding → curing → bag making and forming.
The invention also protects the application of the traceable high-barrier pesticide packaging film for pesticide packaging.
In the invention, the BOPET film (oriented stretch polyester film) is selected as the printing and code spraying layer on the surface layer of the packaging film, and the BOPET film has excellent comprehensive performance, high mechanical strength, good optical performance, wide use temperature, excellent barrier property, oil resistance, corrosion resistance and the like. More importantly, the BOPET film is used as the surface layer, so that a stable code spraying effect can be realized.
A second layer: in addition, the aluminum foil in the aluminum foil bag has good heat resistance, good light reflectivity and glossiness, and good shape at high temperature and low temperature, is suitable for high-temperature cooking, and can resist 130 ℃, so that the aluminum foil has good forming and maintaining effects in the heat sealing process.
And a third layer: because most pesticide products have the characteristic of high smell, in order to have better barrier property, the invention selects the PET aluminum oxide-plated film (PET-AlO)x) The PET aluminum-plated polyester film is formed by plating a transparent aluminum oxide layer on the surface of a BOPET film substrate in a physical vapor deposition mode, has the advantages of good thermal stability, high temperature resistance, high strength and stable chemical property, and compared with a co-extrusion film, a coating film and a common aluminum-plated film, the transparent aluminum-plated film is more environment-friendly, has more superior barrier property and printing property, and provides better transparency visibility and printing adaptability.
A fourth layer: the soft high-temperature high-barrier CPP is selected as a heat sealing layer which has excellent barrier property to moisture and peculiar smell, preferably RCPP, and the soft characteristic of the CPP is selected as the innermost layer, so that the damage to granular and packaged pesticides in the packaging process is avoided.
In the preparation method of the traceable high-barrier pesticide packaging film, the layers are attached by adopting the adhesive, and the pesticide product contains high-corrosion component chemical molecules, so that the requirement on the adhesive is extremely high, and a high-performance anti-medium adhesive needs to be selected. The composite process comprises the following steps: 1. the adhesive A/B component is added into the diluent according to the proportion to be fully and uniformly mixed and stirred, and the gluing amount of 2 is required to be more than 3.5g/m 2. The interlayer bonding is carried out by a dry composite process, and after the bonding is finished, the full curing (curing temperature is 50-60 ℃) is carried out in a curing chamber for 40-72 hours, so that the adhesive between the layers can be fully reacted to achieve the best performance.
The specific scheme is as follows:
a traceable high-barrier pesticide packaging film comprises a biaxially oriented polyester film layer, an aluminum foil layer, a PET (polyethylene terephthalate) aluminum oxide-plated film layer and an unstretched polypropylene film layer which are sequentially stacked from outside to inside, wherein the biaxially oriented polyester film layer, the aluminum foil layer, the PET aluminum oxide-plated film layer and the unstretched polypropylene film layer are connected through adhesives, and a printed pattern and/or a code-spraying mark are/is arranged on the surface of the biaxially oriented polyester film layer.
Further, the thickness of the biaxially oriented polyester film layer is 10-20 μm;
optionally, the aluminum foil layer has a thickness of 5 to 15 μm;
optionally, the thickness of the PET alumina-plated thin film layer is 10-50 μm;
optionally, the unstretched polypropylene film layer is a cooking-grade cast polypropylene film having a thickness of 50-100 μm.
The invention also provides a traceable high-barrier pesticide packaging bag which comprises the traceable high-barrier pesticide packaging film.
Further, traceable high resistant separation pesticide wrapping bag be square bag, a side of square bag is as the opening, three other sides carry out the heat-seal in the edge and form the heat banding, traceable spout a yard mark setting and remove in the surplus region of heat banding at square bag.
The invention also provides a preparation method of the traceable high-barrier pesticide packaging bag, which comprises the following steps:
step 1: printing and/or code spraying are carried out on the biaxially oriented polyester film for later use;
step 2: and (3) performing interlayer compounding on the film obtained in the step (1), the aluminum foil layer, the PET aluminum oxide-plated film layer and the unstretched polypropylene film layer according to the sequence, bonding by adopting a dry compounding process, and fully curing in a curing chamber after bonding to obtain the traceable high-barrier pesticide packaging film.
Further, the method also comprises the step 3: and (3) carrying out heat sealing on the obtained traceable high-barrier pesticide packaging film by using a heavy-pressing type bag making device, and making a bag for forming to obtain the traceable high-barrier pesticide packaging bag.
Furthermore, the interlayer of the step 2 is compounded by adopting an anti-medium adhesive, and the gluing amount is more than or equal to 3.5g/m2。
Further, the curing temperature in the step 2 is 50-60 ℃, and the curing time is 40-72 hours.
Further, the temperature of the heat sealing in the step 3 is 180-200 ℃.
The invention also protects the application of the traceable high-barrier pesticide packaging film for pesticide packaging.
Has the advantages that: the traceable high-barrier pesticide packaging film has high barrier property, can block moisture and gas to a greater degree and prevent pesticide smell from diffusing. And meanwhile, the variable code spraying device is used for spraying codes for printed packages one by one, so that the traceability effect is achieved.
Furthermore, the traceable high-barrier pesticide packaging film is produced by utilizing an interlayer compounding process, and has a good compounding effect; the heat sealing temperature is suitable for being 180 ℃ and 200 ℃, the sealing effect is good, and the pesticide leakage can be effectively prevented.
Drawings
Fig. 1 is a schematic structural view of a traceable high-barrier pesticide packaging film provided in example 1 of the present invention;
fig. 2 is a schematic structural view of a traceable high-barrier pesticide packaging bag provided in embodiment 2 of the present invention.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
Example 1
Referring to fig. 1, a traceable high-barrier pesticide packaging film comprises a biaxially oriented polyester film layer 1, an aluminum foil layer 2, a PET aluminum oxide-coated film layer 3 and an unstretched polypropylene film layer 4 which are sequentially laminated from outside to inside, wherein the biaxially oriented polyester film layer 1 is connected with the aluminum foil layer 2 by using an adhesive, and a printed pattern and/or a code-spraying mark (not shown) is arranged on the surface of the biaxially oriented polyester film layer 1. The thickness of each layer is as follows: the thickness of the two-way stretching polyester film layer is 15 mu m, the thickness of the aluminum foil layer is 7 mu m, the thickness of the PET alumina-plated film layer is 12 mu m, and the thickness of the non-stretching polypropylene film layer is 60 mu m.
The traceable high-barrier pesticide coating has the following barrier performance indexes: moisture permeability of 0.35 g/(m)224h) oxygen permeability of 0.32cm3/(m2·24h·0.1Mpa)。
Example 2
Referring to fig. 2, a traceable high-barrier pesticide packaging bag is prepared by using the traceable high-barrier pesticide packaging film in embodiment 1, the traceable high-barrier pesticide packaging bag is a square bag 10 × 15cm, the four corners of the bag body are provided with round chamfers, one side of the square bag is not heat-sealed and serves as a bag body opening 10, the other three sides are heat-sealed at the edge to form a heat-sealed edge 11, the width of the heat-sealed edge is 5mm, and a traceable code-spraying mark 12 is arranged at the right upper corner of the front side of the square bag.
Example 3
A traceable high-barrier pesticide packaging film comprises a biaxially oriented polyester film layer 1, an aluminum foil layer 2, a PET (polyethylene terephthalate) aluminum oxide-plated film layer 3 and an unstretched polypropylene film layer 4 which are sequentially stacked from outside to inside, wherein the biaxially oriented polyester film layer 1 is connected with the aluminum foil layer 2 through an adhesive, and a printed pattern and/or a code-spraying mark are arranged on the surface of the biaxially oriented polyester film layer 1. The thickness of each layer is as follows: the thickness of the biaxially oriented polyester film layer is 10 micrometers, the thickness of the aluminum foil layer is 7 micrometers, the thickness of the PET alumina-plated film layer is 7 micrometers, and the thickness of the unstretched polypropylene film layer is 100 micrometers.
The traceable high-barrier pesticide coating has the following barrier performance indexes: moisture permeability of 0.38 g/(m)224h) oxygen permeability of 0.35cm3/(m2·24h·0.1Mpa)。
Example 4
A traceable high-barrier pesticide packaging film comprises a biaxially oriented polyester film layer 1, an aluminum foil layer 2, a PET (polyethylene terephthalate) aluminum oxide-plated film layer 3 and an unstretched polypropylene film layer 4 which are sequentially stacked from outside to inside, wherein the biaxially oriented polyester film layer 1 is connected with the aluminum foil layer 2 through an adhesive, and a printed pattern and/or a code-spraying mark are arranged on the surface of the biaxially oriented polyester film layer 1. The thickness of each layer is as follows: the thickness of the two-way stretching polyester film layer is 20 mu m, the thickness of the aluminum foil layer is 7 mu m, the thickness of the PET alumina-plated film layer is 12 mu m, and the thickness of the non-stretching polypropylene film layer is 50 mu m.
The traceable high-barrier pesticide coating has the following barrier performance indexes: moisture permeability of 0.36 g/(m)224h) oxygen permeability of 0.35cm3/(m2·24h·0.1Mpa)。
Example 5
A traceable high-barrier pesticide packaging film comprises a biaxially oriented polyester film layer 1, an aluminum foil layer 2, a PET (polyethylene terephthalate) aluminum oxide-plated film layer 3 and an unstretched polypropylene film layer 4 which are sequentially stacked from outside to inside, wherein the biaxially oriented polyester film layer 1 is connected with the aluminum foil layer 2 through an adhesive, and a printed pattern and/or a code-spraying mark are arranged on the surface of the biaxially oriented polyester film layer 1. The thickness of each layer is as follows: the biaxially oriented polyester film layer is 12 micrometers, the aluminum foil layer is 8 micrometers, the PET alumina-plated film layer is 50 micrometers, and the unstretched polypropylene film layer is a cooking-grade cast polypropylene film and is 80 micrometers.
The traceable high-barrier pesticide coating has the following barrier performance indexes: moisture permeability of 0.35 g/(m)224h) oxygen permeability of 0.34cm3/(m2·24h·0.1Mpa)。
Example 6
The preparation method of the traceable high-barrier pesticide packaging bag comprises the following steps:
step 1: printing and code spraying are carried out on the biaxially oriented polyester film for later use;
step 2: the film obtained in the step 1, the aluminum foil layer, the PET aluminum oxide-plated film layer and the unstretched polypropylene film layer are subjected to interlayer compounding according to the sequence, a dry compounding process is adopted for bonding, an anti-medium adhesive is adopted for interlayer compounding, and the gluing amount is more than or equal to 3.5g/m2(ii) a Fully curing the adhesive in a curing chamber at 50-60 ℃ for 40-72 hours to obtain a traceable high-barrier pesticide packaging film;
and step 3: the traceable high-barrier pesticide packaging film is subjected to heat sealing by using a heavy-duty bag making device, the heat sealing temperature is 180-200 ℃, and bag making and forming are carried out. Specifically, the traceable high-barrier pesticide packaging bag is a square bag, one side of the square bag is used as an opening, the other three sides are subjected to heat sealing at the edge to form a hot sealing edge, and the traceable code spraying mark is arranged in the residual area of the square bag except the hot sealing edge.
The prepared traceable high-barrier pesticide packaging film comprises an outer layer and an inner layer, wherein the thicknesses of the layers are as follows in sequence: the thickness of the two-way stretching polyester film layer is 17 mu m, the thickness of the aluminum foil layer is 7 mu m, the thickness of the PET alumina-plated film layer is 12 mu m, and the thickness of the non-stretching polypropylene film layer is 70 mu m.
The traceable high-barrier pesticide coating has the following barrier performance indexes: moisture permeability of 0.34 g/(m)224h) oxygen permeability of 0.36cm3/(m2·24h·0.1Mpa)。
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (10)
1. A traceable high-barrier pesticide packaging film is characterized in that: the traceable high-barrier pesticide packaging film comprises a biaxially oriented polyester film layer, an aluminum foil layer, a PET (polyethylene terephthalate) aluminum-plated film layer and an unstretched polypropylene film layer which are sequentially stacked from outside to inside, wherein the biaxially oriented polyester film layer, the aluminum foil layer, the PET aluminum-plated film layer and the unstretched polypropylene film layer are connected through adhesives, and printed patterns and/or code spraying marks are arranged on the surface of the biaxially oriented polyester film layer.
2. The traceable high barrier pesticide packaging film of claim 1, wherein: the thickness of the two-way stretching polyester film layer is 10-20 μm;
optionally, the aluminum foil layer has a thickness of 5 to 15 μm;
optionally, the thickness of the PET alumina-plated thin film layer is 10-50 μm;
optionally, the unstretched polypropylene film layer is a cooking-grade cast polypropylene film having a thickness of 50-100 μm.
3. A traceable high-barrier pesticide packaging bag comprising the traceable high-barrier pesticide packaging film of claim 1 or 2.
4. The traceable high-barrier pesticide packaging bag according to claim 3, characterized in that: traceable high separation pesticide wrapping bag be square bag, a side of square bag is as the opening, three other sides carry out the heat-seal in the edge and form the heat banding, traceable spouts a yard mark setting in the remaining region of square bag removal heat banding.
5. The preparation method of the traceable high-barrier pesticide packaging bag according to claim 3 is characterized in that: the method comprises the following steps:
step 1: printing and/or code spraying are carried out on the biaxially oriented polyester film for later use;
step 2: and (3) sequentially compounding the film obtained in the step (1), the aluminum foil layer, the PET aluminum oxide-plated film layer and the unstretched polypropylene film layer in an interlayer manner, bonding by adopting a dry compounding process, and fully curing in a curing chamber after bonding to obtain the traceable high-barrier pesticide packaging film.
6. The preparation method of the traceable high-barrier pesticide packaging bag according to claim 5, which is characterized in that: further comprising the step 3: and (3) carrying out heat sealing on the obtained traceable high-barrier pesticide packaging film by using a heavy-pressing type bag making device, and making a bag for forming to obtain the traceable high-barrier pesticide packaging bag.
7. The preparation method of the traceable high-barrier pesticide packaging bag according to claim 5, which is characterized in that: in the step 2, the interlayer is compounded by adopting an anti-medium adhesive, and the gluing amount is more than or equal to 3.5g/m2。
8. The preparation method of the traceable high-barrier pesticide packaging bag according to claim 5, which is characterized in that: the curing temperature in the step 2 is 50-60 ℃, and the curing time is 40-72 hours.
9. The preparation method of the traceable high-barrier pesticide packaging bag according to claim 6, is characterized in that: the temperature of the heat sealing in the step 3 is 180-200 ℃.
10. Use of the traceable high barrier pesticide packaging film of claim 1 or 2 for pesticide packaging.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911101483.3A CN110901199A (en) | 2019-11-12 | 2019-11-12 | Traceable high-barrier pesticide packaging film, packaging bag formed by traceable high-barrier pesticide packaging film and preparation process of traceable high-barrier pesticide packaging film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911101483.3A CN110901199A (en) | 2019-11-12 | 2019-11-12 | Traceable high-barrier pesticide packaging film, packaging bag formed by traceable high-barrier pesticide packaging film and preparation process of traceable high-barrier pesticide packaging film |
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| CN110901199A true CN110901199A (en) | 2020-03-24 |
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| JP2010111402A (en) * | 2008-11-04 | 2010-05-20 | Kabaya Shokuhin Kk | Easy-to-peal package and its manufacturing method |
| CN203864108U (en) * | 2014-05-06 | 2014-10-08 | 沧州精彩塑胶印刷有限公司 | Missible oil pesticide packaging film |
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| CN107614260A (en) * | 2015-06-18 | 2018-01-19 | 共同印刷株式会社 | Blister package layered product and use have the blister package of the blister package layered product |
| CN211764021U (en) * | 2019-11-12 | 2020-10-27 | 厦门富锦塑胶工业有限公司 | Traceable high-barrier pesticide packaging film and packaging bag formed by same |
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- 2019-11-12 CN CN201911101483.3A patent/CN110901199A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010111402A (en) * | 2008-11-04 | 2010-05-20 | Kabaya Shokuhin Kk | Easy-to-peal package and its manufacturing method |
| CN203864108U (en) * | 2014-05-06 | 2014-10-08 | 沧州精彩塑胶印刷有限公司 | Missible oil pesticide packaging film |
| CN107614260A (en) * | 2015-06-18 | 2018-01-19 | 共同印刷株式会社 | Blister package layered product and use have the blister package of the blister package layered product |
| CN106079948A (en) * | 2016-06-27 | 2016-11-09 | 安徽独秀包装有限公司 | A kind of packaging bag method of printing two-dimensional code |
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