CN216765430U - Acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper - Google Patents
Acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper Download PDFInfo
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- CN216765430U CN216765430U CN202220179622.5U CN202220179622U CN216765430U CN 216765430 U CN216765430 U CN 216765430U CN 202220179622 U CN202220179622 U CN 202220179622U CN 216765430 U CN216765430 U CN 216765430U
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Abstract
The application discloses grease proofing food package transfer paper of acid-resistant anti-alcohol laser environmental protection relates to the food package paper field, and it includes acid-resistant anti-alcohol oil-proof coating, base paper layer and vacuum aluminum coated layer, base paper layer is located acid-resistant anti-alcohol oil-proof coating with between the vacuum aluminum coated layer. The food packaging transfer paper has the advantages that the risk that the integrity of the food packaging transfer paper is damaged can be reduced, and the good appearance of the food packaging transfer paper is kept.
Description
Technical Field
The application relates to the field of food packaging paper, in particular to acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper.
Background
The food packaging material is a packaging product taking paper pulp and paper board as main raw materials, and needs to meet the requirements of no toxicity, oil resistance, water and moisture resistance, sealing and the like. Since the food packaging material is in direct contact with food, the food packaging material has the essential requirement of meeting the food hygiene requirement, and the related technical standard is required to be met according to different use requirements of the food packaging material. Most of the existing food packaging materials are aluminum foil composite paper, laminating paper or common white cardboard.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the aluminum foil composite paper is easy to wrinkle or break in the using process, so that the integrity of the food packaging material is damaged, and the barrier property of the food packaging material is influenced; meanwhile, the laminating paper and the common white cardboard can be dissolved after being contacted with acidic substances, alcohol substances or grease-rich substances for a long time, so that the integrity of the food packaging material can be damaged, and the barrier property of the food packaging material can be influenced.
SUMMERY OF THE UTILITY MODEL
In order to improve the problem that the integrality of food packaging material easily receives destruction in the use, the application provides a resistant oily food packaging transfer paper of acid-resistant radium-shine environmental protection.
The application provides a pair of acid-resistant oily food packaging transfer paper of radium-shine environmental protection adopts following technical scheme:
the acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper comprises an acid-resistant and alcohol-resistant oil-proof coating, a base paper layer and a vacuum aluminum plated layer, wherein the base paper layer is positioned between the acid-resistant and alcohol-resistant oil-proof coating and the vacuum aluminum plated layer.
Through adopting above-mentioned technical scheme, in the use, the grease proofing coating of acidproof resistant alcohol and food direct contact can reduce the direct contact of base paper layer and food, and the grease proofing coating of acidproof resistant alcohol is difficult for receiving the dissolution of acid material, alcohols material or rich in grease class material, and then reduces the food package and shifts the integrality of paper and receive damaged risk. Meanwhile, the aluminum foil composite paper is replaced by the combination of the vacuum aluminum-plated layer and the base paper layer, the base paper layer enables the food packaging transfer paper not to be easily wrinkled or broken, and the vacuum aluminum-plated layer can form a bright metal aluminum layer, so that the risk that the integrity of the food packaging transfer paper is damaged can be further reduced, and the good appearance of the food packaging transfer paper is kept.
Optionally, the acid-resistant, alcohol-resistant and oil-resistant coating is a water-based acrylic copolymer layer.
By adopting the technical scheme, the water-based acrylate copolymer layer is non-toxic, can be in direct contact with food, and has good acid resistance, alcohol resistance and oil resistance. Meanwhile, the water-based acrylate copolymer is environment-friendly and convenient to recover.
Optionally, a composite adhesive layer is arranged between the base paper layer and the vacuum aluminum-plated layer.
Through adopting above-mentioned technical scheme, vacuum aluminum coating layer and base paper layer can be connected steadily to compound gluing layer to can reduce the risk that vacuum aluminum coating layer drops.
Optionally, the composite adhesive layer is a water-based transfer composite adhesive layer.
By adopting the technical scheme, the water-based transfer composite adhesive layer can increase the connection stability between the vacuum aluminum-plated layer and the base paper layer, has acid and alcohol resistance, and can further prolong the service life of the food packaging transfer paper when contacting acidic substances or alcohol substances.
Optionally, a laser transfer coating is disposed on one side of the vacuum aluminum plating layer away from the base paper layer.
Through adopting above-mentioned technical scheme, radium-shine transfer coating can be used for printing anti-fake information or decorative pattern, and then further promotes food package transfer paper's the beautiful degree of color dazzling.
Optionally, the laser transfer coating is a water-based acrylate copolymer layer.
By adopting the technical scheme, the adhesion performance between the water-based acrylate copolymer layer and the aluminum is better, and the understanding stability between the water-based acrylate copolymer layer and the vacuum aluminum-plated layer can be further improved. The water-based acrylic ester copolymer layer has good release with the BOPET film, and the molded grating is clear and bright, which is beneficial to improving the aesthetic degree of the surface printed patterns. Meanwhile, the water-based acrylic copolymer layer also has acid resistance and alcohol resistance, so that the service life of the food packaging transfer paper in contact with acidic substances or alcohol substances can be further prolonged.
Optionally, the thickness of the vacuum aluminum-plated layer is 30 nm-48 nm.
By adopting the technical scheme, the vacuum aluminum plating layer with the thickness less than 30nm has high processing difficulty and is easy to crack in the using process. The vacuum aluminum plating layer with the thickness higher than 48nm has higher processing cost.
Optionally, the coating weight of the acid-resistant and alcohol-resistant oil-proof coating is 5g/m 2-15 g/m 2.
By adopting the technical scheme, the acid-resistant, alcohol-resistant and oil-resistant coating with the coating weight can reduce the overall cost on the premise of ensuring the acid-resistant, alcohol-resistant and oil-resistant performances of the food packaging transfer paper.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the waterborne acrylate copolymer layer is non-toxic and can be in direct contact with food, and the waterborne acrylate copolymer layer is not easily dissolved by acidic substances, alcohol substances or substances rich in grease, so that the risk of damaging the integrity of the food packaging transfer paper is reduced;
2. the aluminum foil composite paper is replaced by the combination of the vacuum aluminum-plated layer and the base paper layer, the base paper layer enables the food packaging transfer paper not to be easily wrinkled or broken, and the vacuum aluminum-plated layer can form a bright metal aluminum layer, so that the risk that the integrity of the food packaging transfer paper is damaged can be further reduced, and the good appearance of the food packaging transfer paper is kept;
3. the water-based transfer composite adhesive layer can increase the connection stability between the vacuum aluminum-plated layer and the base paper layer, has acid and alcohol resistance, and can further prolong the service life of the food packaging transfer paper when contacting acidic substances or alcohol substances.
Drawings
Fig. 1 is a schematic overall structure diagram of a first embodiment of the present application.
Fig. 2 is a schematic overall structure diagram of a second embodiment of the present application.
Reference numerals are as follows: 1. an acid and alcohol resistant oil resistant coating; 2. a base paper layer; 21. a groove; 3. compounding an adhesive layer; 4. vacuum aluminum coating; 5. and (5) laser transfer coating.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The first embodiment is as follows:
the embodiment of the application discloses acidproof resistant oily food packaging transfer paper of radium-shine environmental protection of mellow wine. Referring to fig. 1, the acid-proof alcohol-proof laser environment-friendly oil-proof food packaging transfer paper comprises an acid-proof alcohol-proof coating 1, a base paper layer 2 and a vacuum aluminum-plated layer 4, wherein the base paper layer 2 is positioned between the acid-proof alcohol-proof coating 1 and the vacuum aluminum-plated layer 4. Be provided with between base paper layer 2 and the vacuum aluminum-plated layer 4 and be used for promoting the compound gluing layer 3 of connection stability, and one side that base paper layer 2 was kept away from to vacuum aluminum-plated layer 4 is provided with radium-shine transfer coating 5 that is used for printing anti-fake information or decorative pattern.
In the using process, the acid-proof alcohol-proof oil-proof coating 1 is in direct contact with food, so that the direct contact between the base paper layer 2 and the food can be reduced, and the acid-proof alcohol-proof oil-proof coating 1 is not easily dissolved by acidic substances, alcohol substances or oil-rich substances, so that the risk of damaging the integrity of the food packaging transfer paper is reduced; simultaneously through the combination of vacuum aluminizing layer 4, radium-shine transfer coating 5 and base paper layer 2 and replace aluminium foil composite paper, base paper layer 2 makes food package transfer paper be difficult for fold or fracture, and base paper layer 2 and vacuum aluminizing layer 4 can be connected steadily to compound gluing layer 3, and vacuum aluminizing layer 4 can form bright metallic aluminum layer to can further reduce the food package and shift the integrality of paper and receive the risk of destruction, and keep food package transfer paper good outward appearance.
Referring to fig. 1, the acid and alcohol resistant oil-proof coating 1 is a water-based acrylic copolymer layer, namely, the water-based acrylic copolymer layer has the acid and alcohol resistant and oil-proof properties, and the types and the application dosage of the corresponding resin components and additives meet the requirements of GB9685-2016, GB4806.6-2016 and related publications. The fineness of the acid-resistant and alcohol-resistant oil-proof coating 1 is 0.14 micrometer, the solid content is 30 +/-2%, the pH value is 6.0-8.0, and the coating weight is 5-15 g/m 2. The water-based acrylate copolymer layer is non-toxic and can be directly contacted with food, and meanwhile, the water-based acrylate copolymer has good acid resistance, alcohol resistance and oil resistance, is environment-friendly and is convenient to recycle.
Referring to fig. 1, the base paper layer 2 is a food grade base layer, and the grammage of the base paper layer 2 may be 32-370 g/m2, and in the embodiment of the present application, is 210g/m 2.
Referring to fig. 1, the composite adhesive layer 3 is a water-based transfer composite adhesive layer, and the water-based transfer composite adhesive layer is a butyl acrylate-methacrylic acid-styrene copolymer layer, that is, the main component is a copolymer using butyl acrylate, methacrylic acid and styrene as monomers, and the types and the use dosages of the corresponding resin components and additives conform to the specifications of GB9685-2016, GB4806.6-2016 and related publications, so that the composite adhesive layer 3 has acid and alcohol resistance. The fineness of the composite adhesive layer 3 is 0.14 microns, the solid content is 50 +/-2%, the pH value is 6.0-8.0, and the coating weight is 6-9 g/m 2. The water-based transfer composite glue layer can increase the connection stability between the vacuum aluminum-plated layer 4 and the base paper layer 2, has acid and alcohol resistance, and can further prolong the service life of the food packaging transfer paper when contacting acidic substances or alcohol substances.
Referring to fig. 1, the vacuum aluminum-plated layer 4 is a metal aluminum layer formed by heating and vaporizing an aluminum wire with a purity of 99.9% at a high temperature by a vacuum aluminum-plating apparatus, cooling the aluminum wire, and depositing the aluminum wire on the surface of a film, and the thickness of the vacuum aluminum-plated layer 4 is 30nm to 48 nm.
Referring to fig. 1, the laser transfer coating 5 is a water-based acrylic copolymer layer, and the water-based acrylic copolymer layer is a methyl methacrylate-butyl methacrylate-methacrylic acid copolymer layer, that is, the main component is a copolymer using methyl methacrylate, butyl methacrylate and methacrylic acid as monomers, and the types and the use dosages of the corresponding resin components and additives conform to the specifications of GB9685-2016, GB4806.6-2016 and related publications, so that the laser transfer coating 5 has acid and alcohol resistance. The solid content of the laser transfer coating 5 is 10-25%, the softening point is 120-130 ℃, and the dry coating weight is 0.9-1.1 g/m 2.
The adhesion performance between the water-based acrylate copolymer layer and the aluminum is good, and the understanding stability between the water-based acrylate copolymer layer and the vacuum aluminum-plated layer 4 can be further improved. The water-based acrylic ester copolymer layer and the BOPET film have good release, and the molded grating is clear and bright, which is beneficial to improving the aesthetic degree of the surface printing pattern. Meanwhile, the water-based acrylic copolymer layer also has acid resistance and alcohol resistance, so that the service life of the food packaging transfer paper in contact with acidic substances or alcohol substances can be further prolonged.
The embodiment of the application further discloses a manufacturing method of the acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper, which comprises the following steps:
the method comprises the steps of firstly, biaxially stretching a BOPET polyester film on a coating machine, coating a laser transfer coating 5 on the surface of the BOPET polyester film, and drying and curing by adopting an oven to form the anti-counterfeiting laser information transfer coating film.
And secondly, performing laser holographic die pressing on the anti-counterfeiting laser information transfer coating film on a laser die pressing machine, wherein the die pressing mode adopts a hard pressing seamless die pressing mode, and after laser die pressing, the laser transfer coating 5 is recorded on the biaxially oriented PET polyester film to form the anti-counterfeiting laser transfer coating film. The mold pressing temperature in the step is 150-165 ℃, and the mold pressing speed is 45-60 m/min.
And thirdly, heating the high-purity aluminum wire to about 1400 ℃ to gasify under the vacuum condition of 10 < -2 > to 10 < -3 > Pa by using a vacuum aluminum plating machine, cooling and attaching the high-purity aluminum wire to the transfer coating surface of the anti-counterfeiting laser transfer coating film to form a vacuum aluminum plating layer 4 with an anti-counterfeiting laser holographic pattern, and connecting the vacuum aluminum plating layer 4 with the laser transfer coating 5.
And fourthly, uniformly and finely coating the acid-proof alcohol-proof coating 1 on the back of the food-grade base paper layer 2 at the back coating seat of the wet-type composite gantry machine in an air knife coating mode, drying the coated paper by 2-3 sections of an oven at the temperature of 80-120 ℃ to promote the acid-proof alcohol-proof coating 1 to be solidified and formed into a film on the back of the food-grade base paper layer 2, coating the composite adhesive layer 3 on the surface of the vacuum aluminum-plated layer 4 with the anti-counterfeiting laser holographic pattern on the composite gluing seat of the wet-type composite gantry machine, and pasting the front of the food-grade base paper layer 2 coated with the acid-proof alcohol-proof coating 1 on the back of the composite gluing layer 3. Drying the compounded multilayer material in an oven with the temperature of 100-130 ℃ for 4-6 sections, and then placing the dried multilayer material in a constant-temperature and constant-humidity chamber with the temperature of 20-25 ℃ and the humidity of 40-55% HR for balanced curing for 8-12 hours to form the acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper.
And step five, stripping the product on a stripping machine or a splitting machine according to the product requirement to form a reel product or cutting the product to form a single product, and stripping the biaxially oriented BOPET polyester film for reuse.
The implementation principle of the acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper of the embodiment of the application is as follows: in the using process, the acid-proof alcohol-proof oil-proof coating 1 is in direct contact with food, so that the direct contact between the base paper layer 2 and the food can be reduced, and the acid-proof alcohol-proof oil-proof coating 1 taking the water-based acrylic copolymer as the main raw material is not easily dissolved by acidic substances, alcohol substances or substances rich in grease, so that the risk of damaging the integrity of the food packaging transfer paper is reduced;
meanwhile, the aluminum foil composite paper is replaced by the combination of the vacuum aluminum-plated layer 4, the laser transfer coating 5 and the base paper layer 2, the base paper layer 2 enables the food packaging transfer paper not to be easily wrinkled or broken, the composite adhesive layer 3 can stably connect the base paper layer 2 and the vacuum aluminum-plated layer 4, and the vacuum aluminum-plated layer 4 can form a bright metal aluminum layer, so that the risk of damaging the integrity of the food packaging transfer paper can be further reduced, and the good appearance of the food packaging transfer paper can be kept;
meanwhile, the composite adhesive layer 3 mainly made of butyl acrylate-methacrylic acid-styrene copolymer and the laser transfer coating 5 mainly made of methyl methacrylate-butyl methacrylate-methacrylic acid copolymer are not easy to dissolve acidic substances, alcohol substances or substances rich in grease, so that the risk of damage to the integrity of the food packaging transfer paper is further reduced.
Example two:
referring to fig. 2, the difference between the second embodiment and the first embodiment of the present application is: the base paper layer 2 is close to the side of compound sticky layer 3 and has been seted up a plurality of water supply nature and has been shifted the recess 21 that compound gluey got into, is of value to promoting the stability of being connected between base paper layer 2 and the compound sticky layer 3, and then promotes the stability of being connected between base paper layer 2 and the vacuum aluminum-plated layer 4.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an acidproof resistant radium-shine grease proofing food package transfer paper of environmental protection of mellow wine which characterized in that: including acidproof resistant oily coating of alcohol (1), base paper layer (2) and vacuum aluminum coated layer (4), base paper layer (2) are located acidproof resistant oily coating of alcohol (1) with between vacuum aluminum coated layer (4).
2. The acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper of claim 1, which is characterized in that: the acid-resistant and alcohol-resistant oil-proof coating (1) is a water-based acrylic copolymer layer.
3. The acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper as claimed in any one of claims 1 to 2, which is characterized in that: and a composite adhesive layer (3) is arranged between the base paper layer (2) and the vacuum aluminum-plated layer (4).
4. The acid-resistant, alcohol-resistant, laser-friendly and oil-resistant food packaging transfer paper as claimed in claim 3, which is characterized in that: the composite adhesive layer (3) is a water-based transfer composite adhesive layer.
5. The acid-resistant, alcohol-resistant, laser-friendly and oil-resistant food packaging transfer paper as claimed in any one of claims 1 to 2, wherein: and a laser transfer coating (5) is arranged on one side of the vacuum aluminum-plated layer (4) far away from the base paper layer (2).
6. The acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper of claim 5, which is characterized in that: the laser transfer coating (5) is a water-based acrylate copolymer layer.
7. The acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper of claim 1, which is characterized in that: the thickness of the vacuum aluminum-plated layer (4) is 30-48 nm.
8. The acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper of claim 1, which is characterized in that: the coating weight of the acid-resistant, alcohol-resistant and oil-resistant coating (1) is 5g/m 2-15 g/m 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220179622.5U CN216765430U (en) | 2022-01-22 | 2022-01-22 | Acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220179622.5U CN216765430U (en) | 2022-01-22 | 2022-01-22 | Acid-resistant and alcohol-resistant laser environment-friendly oil-proof food packaging transfer paper |
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Denomination of utility model: A transfer paper for acid and alcohol resistant, laser friendly, and oil resistant food packaging Effective date of registration: 20230411 Granted publication date: 20220617 Pledgee: Minhang, Shanghai, Silver Village bank Limited by Share Ltd. Pledgor: SHANGHAI ZIJIANG METALLIZATION ENVIRONMENTAL PROTECTION MATERIAL CO.,LTD. Registration number: Y2023310000116 |