CN210211656U - Composite film for manufacturing packaging bag - Google Patents
Composite film for manufacturing packaging bag Download PDFInfo
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- CN210211656U CN210211656U CN201920439602.5U CN201920439602U CN210211656U CN 210211656 U CN210211656 U CN 210211656U CN 201920439602 U CN201920439602 U CN 201920439602U CN 210211656 U CN210211656 U CN 210211656U
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- ldpe film
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- corona treatment
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Abstract
The utility model discloses a composite film for manufacturing a packaging bag, which comprises a first LDPE film layer and a second LDPE film layer which are sequentially compounded from top to bottom, wherein the lower surface of the first LDPE film layer is a corona treatment surface, a printing ink layer is printed on the corona treatment surface of the first LDPE film layer, the upper surface of the second LDPE film layer is a corona treatment surface, the corona treatment surface of the second LDPE film layer is provided with a vacuum aluminum-plated layer, and an adhesive layer is filled between the printing ink layer and the vacuum aluminum-plated layer; the lower surface of second LDPE film layer is non-corona treatment face, the non-corona treatment face coating of second LDPE film layer has the coating layer, the coating layer adopts the solution coating of oleamide and methyl alcohol mixture to form. The utility model discloses coefficient of friction is less than 0.25, satisfies automatic packing requirement, has very strong bright silver decorative effect, and recycle is convenient environmental protection.
Description
Technical Field
The utility model relates to a packaging material field, concretely relates to complex film is used to preparation wrapping bag.
Background
The existing composite film for packaging materials mainly has the following problems: 1. the friction coefficient is large, and the automatic packaging requirement cannot be met; 2. the good bright silver decoration effect cannot be presented; 3. is not convenient for recycling.
Disclosure of Invention
The utility model aims at overcoming the above-mentioned not enough, providing a preparation complex film for wrapping bag, coefficient of friction is less than 0.25, satisfies automatic packing requirement, has very strong bright silver decorative effect, and recycle makes things convenient for the environmental protection.
In order to achieve the purpose, the utility model provides the following technical scheme, a composite film for manufacturing a packaging bag comprises a first LDPE film layer and a second LDPE film layer which are sequentially compounded from top to bottom, wherein the lower surface of the first LDPE film layer is a corona treatment surface, a printing ink layer is printed on the corona treatment surface of the first LDPE film layer, the upper surface of the second LDPE film layer is a corona treatment surface, a vacuum aluminum-plated layer is arranged on the corona treatment surface of the second LDPE film layer, and an adhesive layer is filled between the printing ink layer and the vacuum aluminum-plated layer; the lower surface of second LDPE film layer is non-corona treatment face, the non-corona treatment face coating of second LDPE film layer has the coating layer, the coating layer adopts the solution coating of oleamide and methyl alcohol mixture to form.
Further, the thickness of the adhesive layer is 0.0005 to 0.003 mm.
Further, the thickness of the vacuum aluminum-plated layer is 0.002 μm.
Further, the coating layer is formed by coating a mixed solution of oleamide and methanol according to a ratio of 1: 200.
Further, the surface friction coefficient of the coating layer material is less than 0.25.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model relates to a complex film coefficient of friction for preparation wrapping bag is less than 0.25, satisfies automatic packing requirement, and then has improved the production efficiency of automatic packing.
2. The utility model relates to a complex film for preparation wrapping bag has good heat sealability, feature of environmental protection and separation nature, and bright light silver decorative effect is strong.
3. The utility model relates to a complex film for preparation wrapping bag accords with national environmental protection requirement, and recycle is convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The correspondence between each mark and the part name is as follows:
1. a first LDPE film layer; 2. a second LDPE film layer; 3. an ink layer; 4. vacuum aluminum coating; 5. a coating layer; 6. and an adhesive layer.
Detailed Description
In order to make the technical means, the inventive features, the objectives and the functions of the present invention easy to understand, the present invention will be further described with reference to the following specific drawings.
Examples
As shown in fig. 1, a composite film for manufacturing a packaging bag comprises a first LDPE film layer 1 and a second LDPE film layer 2 which are sequentially compounded from top to bottom, wherein the lower surface of the first LDPE film layer 1 is a corona treatment surface, an ink layer 3 is printed on the corona treatment surface of the first LDPE film layer 1, the upper surface of the second LDPE film layer 2 is a corona treatment surface, a vacuum aluminum-plated layer 4 is arranged on the corona treatment surface of the second LDPE film layer 2, and an adhesive layer 6 is filled between the ink layer 3 and the vacuum aluminum-plated layer 4; the lower surface of the second LDPE film layer 2 is a non-corona-treated surface, the non-corona-treated surface of the second LDPE film layer 2 is coated with a coating layer 5, the coating layer 5 is formed by coating a solution mixed by oleamide and methanol, and the material surface friction coefficient of the coating layer 5 is less than 0.25.
Wherein the thickness of the adhesive layer 6 is 0.0005 to 0.003 mm.
Wherein the thickness of the vacuum aluminum-plated layer 4 is 0.002. mu.m.
Wherein, the coating layer 5 is formed by coating a mixed solution of oleamide and methanol according to a ratio of 1: 200.
The processing and manufacturing steps of the composite film for manufacturing the packaging bag in the embodiment are as follows:
s1, printing an ink layer 3 on the corona treatment surface of the first LDPE film layer 1;
s2, depositing and accumulating aluminum steam on the corona treatment surface of the second LDPE film layer 2 by adopting a vacuum aluminum plating method to form a vacuum aluminum plating layer 4, wherein the thickness of the vacuum aluminum plating layer 4 is 0.002 mu m;
s3, filling an adhesive between the ink layer 3 and the vacuum aluminum-plated layer 4 to form an adhesive layer 6, wherein the thickness of the adhesive layer 6 is 0.0005-0.003 mm;
s4, placing the composite film obtained in the step S3 in a curing chamber at 35 ℃ for curing, wherein the curing reaction of the adhesive is over 95% (about 72-74 h);
s5, coating a coating layer 5 on the non-corona treatment surface of the second LDPE film layer 2 on the cured compound die obtained in the step S4, wherein the coating layer 5 is coated by adopting a solution of oleamide and methanol mixed according to a ratio of 1:200, so that the friction coefficient of the inner layer of the compound die is less than 0.25, and the requirement of automatic packaging is met.
The composite film for manufacturing the packaging bag in the embodiment can be used in the fields of plastic packaging of sanitary products (such as sanitary towels, paper diapers, pet pads and mother and baby products), food packaging, clothing packaging, industrial product packaging and the like.
When the composite film for manufacturing the packaging bag is used for the sanitary towel packaging bag, the printed patterns are high in brightness and metallic color, the soft feeling of single-film PE packaging is kept, and the composite film can also be used for a fused edge bottom sealing folded edge bag of the sanitary towel packaging bag.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The composite film for manufacturing the packaging bag is characterized by comprising a first LDPE film layer and a second LDPE film layer which are sequentially compounded from top to bottom, wherein the lower surface of the first LDPE film layer is a corona treatment surface, an ink layer is printed on the corona treatment surface of the first LDPE film layer, the upper surface of the second LDPE film layer is a corona treatment surface, a vacuum aluminum-plated layer is arranged on the corona treatment surface of the second LDPE film layer, and an adhesive layer is filled between the ink layer and the vacuum aluminum-plated layer; the lower surface of second LDPE film layer is non-corona treatment face, the non-corona treatment face coating of second LDPE film layer has the coating layer.
2. The composite film for manufacturing a packaging bag according to claim 1, wherein the adhesive layer has a thickness of 0.0005 to 0.003 mm.
3. A composite film for a manufacturing a packaging bag according to claim 1, wherein the vacuum aluminum-plated layer has a thickness of 0.002 μm.
4. A composite film for use in making a package as defined in claim 1, wherein said coating layer material has a surface friction coefficient of less than 0.25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920439602.5U CN210211656U (en) | 2019-04-01 | 2019-04-01 | Composite film for manufacturing packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920439602.5U CN210211656U (en) | 2019-04-01 | 2019-04-01 | Composite film for manufacturing packaging bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210211656U true CN210211656U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920439602.5U Active CN210211656U (en) | 2019-04-01 | 2019-04-01 | Composite film for manufacturing packaging bag |
Country Status (1)
| Country | Link |
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| CN (1) | CN210211656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654856A (en) * | 2022-03-15 | 2022-06-24 | 浙江锂盾新能源材料有限公司 | Full-matte lithium ion battery composite packaging aluminum-plastic film and manufacturing method thereof |
-
2019
- 2019-04-01 CN CN201920439602.5U patent/CN210211656U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654856A (en) * | 2022-03-15 | 2022-06-24 | 浙江锂盾新能源材料有限公司 | Full-matte lithium ion battery composite packaging aluminum-plastic film and manufacturing method thereof |
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