CN211167773U

CN211167773U - Composite packaging material, packaging sheet set and sealed packaging set

Info

Publication number: CN211167773U
Application number: CN201922143687.5U
Authority: CN
Inventors: 李犇
Original assignee: Greatview Beijing Trading Co Ltd
Current assignee: Greatview Beijing Trading Co Ltd
Priority date: 2018-12-12
Filing date: 2019-12-04
Publication date: 2020-08-04
Anticipated expiration: 2029-12-04

Abstract

The utility model provides a composite packaging material, packing sheet group and sealed packing group, composite packaging material have a plurality of units that are used for forming the independent package, composite packaging material has basic unit, printing layer and waterproof layer from inside to outside, the printing layer of every unit all has variable sign indicating number, and the variable sign indicating number of two liang of units is inequality each other, variable sign indicating number is covered by the wiping layer, wiping layer top still has variable china ink layer, variable china ink layer is the color variable under infrared or ultraviolet irradiation. The variable ink layer above the variable code becomes opaque under infrared or ultraviolet irradiation, the variable code can be conveniently changed from a public state to an invisible confidential state according to needs, the variable code can be used for associating public information such as product traceability and the like, and can also be used for associating information such as prize redemption and the like which needs to be in the confidential state before purchase, the function of the variable code is enriched, and the production steps are simplified.

Description

Composite packaging material, packaging sheet set and sealed packaging set

Technical Field

The utility model relates to a composite packaging material especially relates to a composite packaging material who is used for liquid beverage packing to and the packing sheet group and the sealed package group of making by it.

Background

Liquid foods, such as milk, yogurt, and semi-liquid foods, such as fruit juices, are commonly sold in small volume packaging containers. Such packaging containers are formed from a continuous web of packaging material which may be slit to form blanks or sealed longitudinally to form a tube of packaging material, which is then sealed to form a shape while being filled with the contents, and finally folded into the shape of the final package at a folding station. For liquid or semi-liquid food products, current packaging containers are made of a paper-based composite packaging material having a paper fiber core surrounded by one or more layers of barrier material, such as a polymer coating and/or a metal film, to obtain a composite packaging material. The barrier material serves to protect the core material from contact with the contained product and also to protect the product from the gases and moisture surrounding the packaging container.

In recent years, specific quality system management requirements and traceability information system construction requirements have been proposed in the country for some important goods related to human health, such as food, medicine, infant milk powder and the like. The existing product package is usually provided with a unique identifier, such as a dot code, a bar code, a two-dimensional code or a digital code and the like as an anti-counterfeiting tracing identifier, and a consumer scans the product by utilizing a mobile phone and other handheld devices, so that the purposes of product tracing, authenticity verification, participation in marketing activities and the like can be achieved. However, the mark directly exposed on the surface of the outer package of the product is often stolen and swept before the product is sold, and in order to prevent the situation, the mark is usually shielded, and the shielding object can be removed only after the product is purchased to scan and identify the mark.

The problem is that in the field of liquid food packaging, the production and manufacture of packaging materials and the filling and forming of liquid food into sealed packages are two processes completely separated in time and space, and are respectively completed by different manufacturers and different production places. In order to match the filling speed, the identification on the sealed package is usually spray printed on the packaging material at the packaging material production stage, and the identification is read and correlated with the production process information after the sealed package is formed. Therefore, if the mark is shielded in the production stage of the packing material, the mark cannot be read after the sealed package is finished, so that the production and traceability information of the product cannot be associated, and the mark can only be used for rewarding, anti-counterfeiting or point counting and other activities of the product; if the mark is not shielded, the anti-theft scanning method can only be used for relevant product production and other public information to avoid theft scanning. In the prior art, no matter the filling molding adopts opaque ink layer or non-setting adhesive to shelter from the sign after for sealed package, still adopts the mode of increasing a sign, all needs to increase extra equipment and process, very big influence production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides one kind and has covered variable black layer on variable sign indicating number, variable black layer colour changeable composite packaging material, packing sheet group and sealed packing group under infrared or ultraviolet irradiation.

According to the utility model discloses an aspect provides a composite packaging material, has a plurality of units that are used for forming the independent packing, and composite packaging material has basic unit, printing layer and waterproof layer from inside to outside, and the printing layer of every unit all has variable sign indicating number, and the variable sign indicating number of two liang of units is different each other, and its characterized in that, variable sign indicating number are covered by the wiping layer, and wiping layer top still has variable china ink layer, and variable china ink layer is the color variable under infrared or ultraviolet irradiation.

According to the utility model discloses a preferred embodiment, but the variable ink layer is the printing ink layer that contains titanium white powder.

According to a preferred embodiment of the present invention, the color change of the variable ink layer under infrared or ultraviolet irradiation is irreversible.

According to the utility model discloses a preferred embodiment, the wiping layer includes two-layer structure, is isolation layer and intermediate level from inside to outside in proper order.

According to a preferred embodiment of the present invention, the wiping layer further comprises a reinforcing layer, the reinforcing layer being located above the intermediate layer.

According to the utility model discloses a preferred embodiment, the cohesion of intermediate level and isolation layer is less than the cohesion between the all the other layers of composite packaging material for intermediate level and isolation layer separation under the exogenic action.

According to a preferred embodiment of the present invention, the isolation layer comprises a transparent epoxy acrylic resin, a monomer and an initiator.

According to a preferred embodiment of the present invention, the intermediate layer comprises an acrylic emulsion and an auxiliary agent.

According to a preferred embodiment of the present invention, the reinforcement layer comprises titanium dioxide, acrylic emulsion and an auxiliary agent.

According to a preferred embodiment of the present invention, the intensity of the infrared or ultraviolet radiation is between 10 and 80 milliwatts.

According to a preferred embodiment of the present invention, the area of the variable ink layer is not larger than the area of the doctor blade layer.

According to another aspect of the present invention there is provided a group of packaging sheets comprising a plurality of sheets for forming individual packages, each sheet being each unit of the aforementioned composite packaging material.

According to a further aspect of the invention, there is provided a sealed package group comprising a plurality of individual packages, each package being made from each unit of the aforementioned composite packaging material or from each sheet of the aforementioned group of packaging sheets.

The variable ink layer on compound packaging material, packing sheet group and the sealed package group can change the colour under infrared or ultraviolet irradiation in this application, makes the variable code that is covered by the variable ink layer change into invisible secret state by visible public state as required to the transformation mode is nimble, simple, easy operation, makes same variable code can be correlated with public information and secret information simultaneously, has richened the function of variable code, has simplified the production step.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a perspective view of a composite packaging material according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a composite packaging material according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a composite packaging material according to another embodiment of the present invention.

Fig. 4 is a schematic view of a packaging sheet set made of the composite packaging material of the present invention.

Fig. 5 is a schematic view of a sealed package group made of the composite packaging material of the present invention.

Fig. 6 is a partial exploded view of the variable code of the packaging sheet set according to the present invention.

Reference numerals

1-individually packaged Unit 2-composite packaging Material 11-base layer

12-printed layer 13, 13' -variable code 14-isolation layer

15-intermediate layer 16-variable ink layer 17-water-proof layer

18-enhancement layer

Detailed Description

The following description of the preferred embodiments of the present invention will further illustrate the technical means taken to achieve the objects of the present invention.

Fig. 1 is a perspective view of a composite packaging material according to an embodiment of the present invention. The composite packaging material 2 has a plurality of units 1 for forming individual packages. Each unit is provided with a variable code 13, and the variable codes 13 have uniqueness, i.e. the variable codes 13 of two units are different from each other. The variable codes 13, 13 'are for example shown in fig. 1 in different units, and the variable codes 13 and 13' are different from each other. Additionally, the utility model discloses in the relative position description from top to bottom among the layer structure of composite packaging material who relates to correspond to composite packaging material is used for product packaging from outer to interior relative position description.

Fig. 2 is a schematic cross-sectional view of a composite packaging material according to an embodiment of the present invention. The composite packaging material 2 sequentially comprises a base layer 11, a printing layer 12, a variable code 13, an isolating layer 14, a middle layer 15, a variable ink layer 16 and a waterproof layer 17 from inside to outside. The base layer 11 may be a paper substrate. The variable code 13 may be any one of or any combination of more than one of a dot code, a barcode, a two-dimensional code, and a numeric character string, but is not limited thereto. The variable code 13 is formed on the surface of the printed layer 12 by spray printing, printing or pasting in the production process of the packaging material. The variable code 13 is covered with a scraping layer, the area of the scraping layer is preferably not less than that of the variable code 13, the structure of the scraping layer comprises an isolation layer 14 and an intermediate layer 15, the isolation layer 14 is in direct contact with the variable code 13 and is mainly used for protecting the variable code 13, and otherwise, the intermediate layer 15 is easily absorbed by paper to cause that the variable code 13 cannot be scraped or broken. The barrier layer 14 may be printed with a barrier varnish, which may be an aqueous varnish or a UV varnish, preferably a UV varnish. The composition of the release layer 14 may include a transparent epoxy acrylic resin, a monomer, and an initiator. The monomer can be selected from ester monomers or organic siloxane monomers, such as methyl methacrylate monomers, butyl acrylate monomers, vinyl triisopropoxysilane and the like; the initiator is mainly compounded by 1-hydroxycyclohexyl phenyl ketone, 4-phenyl benzophenone and 2, 4, 6-trimethyl benzoyl. An intermediate layer 15 is arranged above the isolation layer 14, the intermediate layer 15 is generally in a transparent or semitransparent state, the intermediate layer 15 comprises acrylic emulsion and an auxiliary agent, and the auxiliary agent comprises ethanol, propylene glycol, methyl ether, a defoaming agent and the like. A doctor blade layer formed by the isolation layer 14 and the intermediate layer 15Above is the variable ink layer 16, the area of the variable ink layer 16 is preferably no greater than the area of the scratch-off layer to save cost and increase efficiency, as the variable code 13 is not required to be completely covered or the variable code 13 is not required to be readable, and partial occlusion can also prompt the consumer to scratch off the occlusion to reveal the variable code 13. The variable ink layer 16 is an ink layer containing titanium dioxide, the titanium dioxide can be various titanium dioxides commonly used in the prior art, the main component of the titanium dioxides is titanium dioxide, and the content of the titanium dioxides is 3-15 wt% based on the total mass of the ink composition. The water-repellent layer 17 is covered above the variable ink layer 16. The variable ink layer 16 is capable of changing color under infrared or ultraviolet illumination, such as changing to an opaque black color; the infrared preferred wavelength range is near infrared with the wavelength range of 700-2500nm or middle infrared with the wavelength of 2500-25000 nm; the preferred wavelength range of ultraviolet is 200nm-400nm, and infrared or ultraviolet radiation is emitted by a laser such as CO₂A laser, fiber laser, solid state laser, excimer laser, laser diode or diode array, or the like, the intensity of infrared or ultraviolet radiation is in the range of 10-80 milliwatts, preferably 60 milliwatts, and the process of color change of the variable ink layer 16 after infrared or ultraviolet radiation is irreversible.

When the production of the packaging material is completed by a packaging material production enterprise, the variable code 13 is in a visible state. After the packaging material is transported to the filling enterprise, the filling enterprise can scan the variable code 13 at any time in the production process of filling by using the packaging material, and associate the variable code 13 with various data and information in the production process of the product, such as information of a raw material production place, production time, a production line and a delivery place, and the like, so that the informatization management of the production process of the product is realized. In addition, the variable code 13 can also be used for associating prize information, preventing counterfeiting or for points, and because such information has the property of rewarding consumption, the variable code 13 needs to be kept secret before purchase in order to avoid illegal scanning. Therefore, the filling enterprise can perform infrared or ultraviolet irradiation on the variable ink layer 16 before leaving the factory, so that the variable ink layer 16 changes color, the variable code 13 is in an invisible state, and only after the variable code is purchased by a real consumer, the coating can be scraped to read the variable code 13.

Fig. 3 is a schematic cross-sectional view of a composite packaging material according to another embodiment of the present invention. Different from fig. 2, the doctor blade layer in fig. 3 further has a reinforcing layer 18 above the intermediate layer 15, the reinforcing layer 18 is formed by adding titanium dioxide into the intermediate layer 15, and the reinforcing layer 18 can stabilize the structure of the doctor blade layer and can also enhance the covering ability of the variable ink layer 16 after being irradiated by infrared or ultraviolet and changed in color. The bonding force between the isolation layer 14 and the intermediate layer 15 in the packaging material is weakest and is smaller than the bonding force between the other layers of the packaging material: the bonding force between the isolation layer 14 and the intermediate layer 15 is less than the bonding force between the intermediate layer 15 and the enhancement layer 18 and/or less than the bonding force between the variable ink layer 16 and the waterproof layer 17 and/or less than the bonding force between the variable code 13 and the isolation layer 14 and/or less than the bonding force between the variable code 13 and the printing layer 12 and/or less than the bonding force between the isolation layer 14 and the base layer 11. The area of the variable ink layer 16 is not larger than the area of the doctor blade layer, and the area of the doctor blade layer is not smaller than the area of the variable code 13.

Fig. 4 shows that the utility model provides a packaging sheet group, including a plurality of sheets of making by aforementioned composite packaging material, every sheet is for being used for forming the unit of individual packing, and the sheet has base layer 11, printing layer 12, variable code 13, isolation layer 14, intermediate level 15, variable ink layer 16 and waterproof layer 17 from inside to outside, or the sheet has base layer 11, printing layer 12, variable code 13, isolation layer 14, intermediate level 15, enhancement layer 18, variable ink layer 16 and waterproof layer 17 from inside to outside. Fig. 4 schematically illustrates one sheet of the set of sheets. The area indicated by the letter a in fig. 4 is the position of the variable code 13 on the sheet, fig. 6 shows a partially exploded view of the layer structure where the variable code 13 is located, each sheet is provided with a unique variable code 13, and the variable code 13 may be any one of a dot code, a bar code, a two-dimensional code, and a digital character string, or any combination of more than one of them, but is not limited thereto. The variable code 13 can be used for associating information which can be disclosed to the public, such as product tracing, and can also be used for associating information which needs to be kept secret, such as cashing. The variable code 13 is covered with a doctor blade layer, and the area of the doctor blade layer is preferably not smaller than the area of the variable code 13. The structure of the doctor blade layer may include only the separator 14 and the intermediate layer 15, and a reinforcing layer 18 may be further provided above the intermediate layer 15. Above the scratch layer is a variable ink layer 16, the area of the variable ink layer 16 is preferably not larger than the area of the scratch layer, and the variable code 13 is completely or partially blocked, as long as it is ensured that the variable code 13 cannot be read by the device except for the part blocked by the variable ink layer 16 after color change. The lines in fig. 4 indicate fold lines and print zone boundary lines when the package is formed.

The packaging sheet group can be formed by cutting the composite packaging material into packaging sheets according to requirements.

Fig. 5 shows that the utility model provides a pair of sealed package group, by aforementioned composite packaging material or packing sheet group through steps such as filling, sealing, plastic form, including a plurality of sealed packages of constituteing by composite packaging material, the used composite packaging material of every packing has basic unit 11, printing layer 12, variable sign indicating number 13, isolation layer 14, intermediate level 15, variable ink layer 16 and waterproof layer 17 from inside to outside, or the packing has basic unit 11, printing layer 12, variable sign indicating number 13, isolation layer 14, intermediate level 15, enhancement layer 18, variable ink layer 16 and waterproof layer 17 from inside to outside. Fig. 5 schematically shows one package of a package group. The area indicated by the letter a in fig. 5 is the location of the variable code 13 on the sealed package, and fig. 6 shows a partially exploded view of the layer structure where the variable code 13 is located, and each package is provided with a unique variable code 1. A wiping layer is covered above the variable code 13, the area of the wiping layer is preferably not less than that of the variable code 13, the structure of the wiping layer may only include the isolation layer 14 and the intermediate layer 15, and a reinforcing layer 18 may be additionally arranged above the intermediate layer 15. Above the scratch layer is a variable ink layer 16, the area of the variable ink layer 16 is preferably not larger than the area of the scratch layer, and the variable code 13 is completely or partially blocked, as long as it is ensured that the variable code 13 cannot be read by the device except for the part blocked by the variable ink layer 16 after color change.

The utility model discloses specially adapted liquid beverage's packing, but the utility model discloses be not limited to this, the utility model discloses also be applicable to the product of other paper base packagings simultaneously, for example the product in the aspect of food, medicine.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a composite packaging material, has a plurality of units that are used for forming individual package, composite packaging material has basic unit, printing layer and waterproof layer from inside to outside, and the printing layer of every unit all has variable sign indicating number, and the variable sign indicating number of two liang of units is different each other, its characterized in that, variable sign indicating number is covered by the wiping layer, wiping layer top still has variable ink layer, variable ink layer is the color is changeable under infrared or ultraviolet irradiation.

2. The composite packaging material of claim 1, wherein the variable ink layer is an ink layer containing titanium dioxide.

3. The composite packaging material of claim 1 wherein said variable ink layer changes color irreversibly upon infrared or ultraviolet irradiation.

4. The composite packaging material of claim 1 wherein said doctor blade layer comprises a two-layer structure, an isolation layer and an intermediate layer in that order from the inside to the outside.

5. The composite packaging material of claim 4 wherein said doctor blade layer further comprises a reinforcing layer, said reinforcing layer being located above said intermediate layer.

6. The composite packaging material of claim 4 or 5 wherein the bonding force between the intermediate layer and the barrier layer is less than the bonding force between the remaining layers of the composite packaging material such that the intermediate layer is separated from the barrier layer by an external force.

7. The composite packaging material of claim 4 wherein said barrier layer comprises a transparent epoxy acrylic resin, a monomer and an initiator.

8. The composite packaging material of claim 4 wherein said intermediate layer comprises an acrylic emulsion and an adjuvant.

9. The composite packaging material of claim 5 wherein the reinforcing layer comprises titanium dioxide, acrylic emulsion and an auxiliary.

10. The composite packaging material of claim 1 wherein the infrared or ultraviolet radiation intensity is from 10 to 80 milliwatts.

11. The composite packaging material of claim 1 wherein the area of the variable ink layer is no greater than the area of the doctor blade layer.

12. A packaging sheet set comprising a plurality of sheets for forming individual packages, each of said sheets being each of said units of the composite packaging material of any one of claims 1-11.

13. A sealed package group comprising a plurality of individual packages, each made from each of the units of composite packaging material according to any one of claims 1-11 or from each of the sheets of the group of packaging sheets according to claim 12.