CN211168135U - Composite packaging material and packaging sheet set - Google Patents

Abstract

The utility model provides a composite packaging material and packing sheet group, composite packaging material has a plurality of units that are used for forming the independent packing, composite packaging material has the basic unit from inside to outside, printing layer and waterproof layer, every unit all has an exclusive variable sign indicating number, variable sign indicating number is scraped the wiping layer and is covered, variable sign indicating number is located the printing layer top, wiping layer top still has variable china ink layer, variable china ink layer can form an exclusive identification code under laser irradiation, variable china ink layer is located the waterproof layer below. The visible identification code and the invisible variable code are arranged at the same position of each unit of the composite packaging material or the packaging sheet group and are respectively used for associating information with different attributes, and the functions of product packaging are enriched while the limited space of the surface of the product packaging is fully utilized.

Description

Composite packaging material and packaging sheet set

Technical Field

The utility model relates to a composite packaging material especially relates to a composite packaging material and packing sheet group for liquid beverage packing.

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, for some important goods related to human health, such as food, medicine, infant milk powder and the like, the nation puts forward clear quality system management requirements and traceability information system construction requirements on production enterprises. 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 identifier by utilizing a mobile phone and other handheld devices, so that the purpose of tracing the source and the production information of the product can be achieved. In addition, in order to improve market competitiveness, merchants often adopt various promotion means, consumers participate in preferential activities by scanning prize exchange codes or point codes printed on product packages after purchasing, and in order to avoid stealing and scanning by others, the prize exchange codes or point codes are generally in a shielded state before selling. Therefore, to achieve different purposes, at least two unique codes are often arranged on the product package, and for a product package with a small volume, the limited surface space of the product package is occupied, and the appearance of the surface of the product is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an identification that has confidentiality and publicity respectively, can enough enrich the product packaging function, does not occupy too much surface space's combined packaging material and packing sheet group simultaneously again.

According to the utility model discloses an aspect provides a composite packaging material, a plurality of units that are used for forming the independent packing have, composite packaging material has the basic unit from inside to outside, printing layer and waterproof layer, every unit all has a unique variable sign indicating number, variable sign indicating number is covered by scraping the wiping layer, a serial communication port, variable sign indicating number is located the printing layer top, it still has variable china ink layer to scrape the wiping layer top, variable china ink layer can form a unique identification code under laser irradiation, variable china ink layer is located the waterproof layer below.

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 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, a toner 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 laser irradiation intensity is 10 to 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.

Each unit of the composite packaging material or the packaging sheet group has a secret unique variable code and a public unique identification code, the two codes are located at the same position on the composite packaging material or the packaging sheet group, and under the condition that extra space of a packaging surface is not occupied, richer functions and more abundant use scenes are provided.

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-variable code 14-isolation layer

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

18-enhancement layer 19-identification code

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 1 is printed with a variable code 13 and an identification code 19, respectively, on different layer structures in the area indicated by the letter a in fig. 1. The variable code 13 and the identification code 19 of each unit have uniqueness, that is, the variable code 13 and the identification code 19 of each unit 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, an identification code 19 and a waterproof layer 17 from inside to outside. The base layer 11 may be a paper substrate. The variable code 13 and the identification code 19 may be any one of or any combination of more than one of a dot code, a bar code, a two-dimensional code, and a numeric character string, but are 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 may be used for prize information, credit or anti-counterfeiting of associated products, and in order to avoid skimming, the variable code 13 is usually kept secret before purchase. This application is at variable sign indicating number 13 top printing wiping layer, and the variable sign indicating number 13 is in invisible state when making to sell, and the consumer can only scrape the coating after purchasing and discern variable sign indicating number 13. The area of the doctor blade layer covering over the variable code 13 may be not less than the area of the variable code 13, completely blocking the variable code 13; the scratch layer may be smaller than the area of the variable code 13, partially blocking the variable code 13, as long as the portion of the variable code 13 other than the portion blocked by the scratch layer cannot be read by the device. The structure of the doctor layer includes a separation layer 14 and an intermediate layer 15, the separation layer 14 is in direct contact with the variable code 13 and mainly used for protecting the variable code 13, otherwise the intermediate layer 15 is easily absorbed by paper to cause scratch or break the variable code 13. 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. The intermediate layer 15 is arranged above the isolation layer 14, the components of the intermediate layer 15 comprise acrylic emulsion, toner and auxiliaries, the auxiliaries comprise ethanol, propylene glycol, methyl ether, defoaming agent and the like, the toner generally contains carbon powder or titanium dioxide, the intermediate layer 15 is opaque white or black, the structure of the intermediate layer 15 is loose, and the intermediate layer is easy to separate from the isolation layer 14 after external force is applied.

The variable ink layer 16 is printed on the scraping layer consisting of the isolation layer 14 and the intermediate layer 15, the variable ink layer 16 can be 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 variable ink layer 16 may also adopt a layer structure having other components as long as the layer structure is discolored after being irradiated with laser light and is irreversible after the discoloration. After the variable ink layer 16 of the composite packaging material is printed and dried, the laser is controlled to irradiate the variable ink layer 16, and the variable ink layer 16 is discolored under the irradiation of the laser and forms an identification code 19 which is generated in advance in the program. The identification code 19 is shown above the variable ink layer 16 for clarity of illustration, and one skilled in the art will appreciate that the identification code 19 is actually located in the variable ink layer 16. The identification code 19 is a random code generated according to a program, each identification code 19 is unique, the identification code 19 does not contain specific production information when initially generated, and after the identification code 19 is generated, a packaging material manufacturing enterprise can read the identification code 19 and associate packaging material production related information; after the packaging material is delivered to a liquid beverage production enterprise, the beverage production enterprise can read the identification code 19 on the packaging material and associate the identification code with production information of the product, such as information of a production place, production time, a production line and a distribution place, and the like, so that the information management of the whole production process of the product is realized.

The laser irradiating the variable ink layer 16 is infrared or ultraviolet, and the infrared is preferably near infrared with the wavelength range of 700nm-2500nm or middle infrared with the wavelength of 2500nm-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 color change of the variable ink layer 16 upon infrared or ultraviolet radiation is irreversible. The waterproof layer 17 can be compounded after the laser printing of the identification code 19 is finished; or the waterproof layer 17 can be compounded after the variable ink layer 16 is printed, and then the identification code 19 is formed by irradiating the variable ink layer 16 with laser, in this case, the identification code 19 formed by irradiating with laser can be completed by a packaging material production enterprise, or can be formed and even filled to form a package after being transported to a beverage production enterprise at the same time or later.

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, and the components of the reinforcing layer 18 include titanium dioxide, acrylic emulsion and auxiliaries, and the auxiliaries include ethanol, propylene glycol, methyl ether and the like. The reinforcing layer 18 makes the structure of the wiping layer more stable, and also enhances the ability of the wiping layer to shield the variable code 13. 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 smaller than the bonding force between the intermediate layer 15 and the enhancement layer 18 and/or smaller than the bonding force between the variable ink layer 16 and the identification code 19 and/or smaller than the bonding force between the identification code 19 and the waterproof layer 17 and/or smaller than the bonding force between the variable code 13 and the isolation layer 14 and/or smaller than the bonding force between the variable code 13 and the printing layer 12 and/or smaller than the bonding force between the isolation layer 14 and the base layer 11. Preferably, the area of the variable ink layer 16 is not greater than the area of the doctor layer and the identification code 19 is not greater than the area of the variable ink layer 16.

Fig. 4 shows a packaging sheet set provided by the present invention, which includes a plurality of sheets made of the aforementioned composite packaging material, each sheet is used to form an individually packaged unit, and the sheet has, from inside to outside, a base layer 11, a printing layer 12, a variable code 13, an isolation layer 14, an intermediate layer 15, a variable ink layer 16, an identification code 19, and a waterproof layer 17; or the sheet has, from the inside outwards, a base layer 11, a printed layer 12, a variable code 13, a barrier layer 14, an intermediate layer 15, a reinforcing layer 18, a variable ink layer 16, an identification code 19 and a waterproof layer 17. 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 and the identification code 19 on the sheet, fig. 6 shows a partially exploded view of the layer structure where the variable code 13 and the identification code 19 are located, each sheet is provided with a unique variable code 13 and a unique identification code 19, and the variable code 13 and the identification code 19 may be any one of or any combination of more than one of a dot matrix code, a bar code, a two-dimensional code, and a numeric character string, but are not limited thereto. The identification code 19 is visible and is used for associating information which can be disclosed to the public, such as product tracing and the like; the variable code 13 is completely or partially shielded by the scratch layer, the part of the variable code 13 except for the shielding part cannot be read by the equipment, and the variable code 13 is used for associating information needing to be kept secret, such as cashing, points and the like. The structure of the doctor blade layer includes the separator 14 and the intermediate layer 15, and a reinforcing layer 18 may be further provided above the intermediate layer 15. Above the doctor layer is a variable ink layer 16, the area of the variable ink layer 16 preferably being no greater than the area of the doctor layer, the variable ink layer 16 being laser irradiated to form the identification code 19. 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 the filling, sealed, step formation such as plastic, including a plurality of sealed package that constitute 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, identification code 19 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, identification code 19 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 and the identification code 19 on the sealed package, fig. 6 shows a partially exploded view of the layer structure where the variable code 13 and the identification code 19 are located, each sealed package is provided with a unique variable code 13 and a unique identification code 19, and the variable code 13 and the identification code 19 may be any one of or any combination of more than one of a dot matrix code, a bar code, a two-dimensional code, and a numeric character string, but are not limited thereto. The identification code 19 is visible and is used for associating information which can be disclosed to the public, such as product tracing and the like; the variable code 13 is completely or partially shielded by the scratch layer, the part of the variable code 13 except for the shielding part cannot be read by the equipment, and the variable code 13 is used for associating information needing to be kept secret, such as cashing, points and the like. The structure of the doctor blade layer includes the separator 14 and the intermediate layer 15, and a reinforcing layer 18 may be further provided above the intermediate layer 15. Above the doctor layer is a variable ink layer 16, the area of the variable ink layer 16 preferably being no greater than the area of the doctor layer, the variable ink layer 16 being laser irradiated to form the identification code 19. 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 (11)

1. A composite packaging material having a plurality of cells for forming individual packages, said composite packaging material having from the inside to the outside a base layer, a printed layer and a water barrier layer, each of said cells having a unique variable code, said variable code being covered by a scratch layer, characterized in that said variable code is located above said printed layer, said scratch layer also having a variable ink layer thereon, said variable ink layer being capable of forming a unique identification code upon laser irradiation, said variable ink layer being located below said water barrier layer.

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 doctor blade layer comprises a two-layer structure, an isolation layer and an intermediate layer in that order from the inside to the outside.

4. The composite packaging material of claim 3 wherein said doctor blade layer further comprises a reinforcing layer, said reinforcing layer being located above said intermediate layer.

5. The composite packaging material of claim 3 or 4 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.

6. The composite packaging material of claim 3 wherein said barrier layer comprises a transparent epoxy acrylic resin, a monomer and an initiator.

7. The composite packaging material of claim 3 wherein the intermediate layer comprises an acrylic emulsion, toner, and an adjuvant.

8. The composite packaging material of claim 4 wherein the reinforcing layer comprises titanium dioxide, acrylic emulsion and an auxiliary.

9. The composite packaging material of claim 1 wherein the laser irradiation intensity is 10-80 milliwatts.

10. 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.

11. 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 1-10.

Images