CN106516421A - Composite packing material, and sheet groups and airtight packing manufactured through composite packing material - Google Patents

Abstract

The present invention provides a composite packaging material and a sheet group manufactured therefrom, a sealed package, the composite packaging material has a plurality of units for forming individual packages, the composite packaging material includes a waterproof layer, a printing layer and a base layer, each Each unit is printed with a dot matrix, and the dot matrix of each unit is different from each other. The dot matrix is directly or indirectly printed on the outside of the printing layer and is located on the background color or pattern of the printing layer. The technical solution of the present invention is aimed at the packaging of liquid beverages with one object and one code, and is used to reduce the influence of the two-dimensional code on the design effect of the outer surface of the packaging product, save the printing space of the pattern or design of the composite packaging material, and improve the integrity of the pattern or design sex.

Description

Composite packaging material and sheet groups made therefrom, hermetically sealed packages

technical field

The present invention relates to a composite packaging material, in particular to a composite packaging material for the packaging of liquid beverages and a sheet pack or sealed package made therefrom.

Background technique

Liquid foods, such as milk and yoghurt, and semi-liquid foods, such as juice, are usually sold in small volume consumer packaging containers. The packaging container is used to protect food throughout the value chain during transport and handling.

For liquid or semi-liquid foods, current packaging containers are made of paper-based composite packaging material with a paper fiber core surrounded by one or more layers of barrier material, such as a polymeric coating and/or metal film to obtain composite packaging materials. The barrier material serves to protect the core material from contact with the contained product and also protects the product from gases and moisture surrounding the packaging container.

In recent years, for some important commodities related to human health, such as food, medicine, infant milk powder, etc., the state has put forward clear quality system management requirements and traceability information system construction requirements. For example, CN104555086A discloses a liquid beverage packaging solution that can realize one code for one item, and generates different two-dimensional codes on each product packaging, and scans the two-dimensional codes through a handheld device to trace the products. However, due to the limited external area of the small-volume packaging container, the printing of the two-dimensional code logo needs to occupy a certain space, which often affects the overall design of the product packaging pattern.

Contents of the invention

The purpose of the present invention is to provide a liquid beverage packaging solution that reduces the influence of the two-dimensional code on the outer surface design effect of the packaged product.

According to one aspect of the present invention, there is provided a composite packaging material having a plurality of units for forming individual packages, said packaging material comprising a waterproof layer, a printing layer and a base layer, characterized in that each unit is printed with dot matrix , the dot matrix of each unit is different from each other, and the dot matrix is directly or indirectly printed on the outside of the printing layer, and is located on the background color or pattern of the printing layer.

According to a preferred embodiment of the present invention, the packaging material sequentially includes the base layer, the printing layer, the dot matrix, and the waterproof layer from the inside to the outside.

According to a preferred embodiment of the present invention, the packaging material sequentially includes the base layer, the printing layer, the waterproof layer, and the dot matrix from the inside to the outside.

According to a preferred embodiment of the present invention, the packaging material sequentially includes the base layer, the waterproof layer, the printing layer, and the dot matrix from the inside to the outside.

According to a preferred embodiment of the present invention, the dot matrix is printed on the outside of the printing layer using paint that can be identified by invisible light to the naked eye.

According to a preferred embodiment of the present invention, the paint that can be identified by invisible light to the naked eye is a carbon-containing visible paint or a carbon-containing invisible paint, wherein the carbon-containing visible paint is a carbon-containing visible ink, toner or Inks, carbon-containing invisible coatings are carbon-containing invisible inks, toners or inks.

According to a preferred embodiment of the present invention, the dot matrix is printed on the outside of the printing layer by spraying, printing or printing.

According to a preferred embodiment of the present invention, the dot matrix is formed while printing the printing layer or is formed separately after printing the printing layer.

According to a preferred embodiment of the present invention, the base color or pattern of the printing layer is formed by one color or by superposition of at least two colors.

According to a preferred embodiment of the present invention, the dot matrix is a mark with a specified shape that is regularly arranged by several small patterns, and the maximum distance between any two points on the edges of the small patterns is greater than 40 μm and not greater than 100 μm.

According to a preferred embodiment of the present invention, the fine patterns in the dot matrix are arranged according to a certain coding law, and the dot matrix generated according to the coding law has the ability to store information and can be recognized by a dot matrix recognition device.

According to a preferred embodiment of the present invention, the dot matrix can still be recognized by the dot matrix recognition device after being partially blocked or destroyed.

According to a preferred embodiment of the present invention, the identification device is a near-infrared device, a far-infrared device or an ultraviolet device.

According to another aspect of the present invention there is provided a set of sheets from the aforementioned composite packaging material for cutting to form individually packaged units.

According to another aspect of the present invention, there is provided a sealed package for liquid packaging made from the aforementioned composite packaging material or sheet group by folding and sealing.

The dot matrix provided by the present invention has a specified shape and is composed of a large number of small patterns that are difficult to distinguish with the naked eye. It can be printed directly or indirectly on the outside of the printing layer without obvious occlusion of the pattern or design of the printing layer, and does not require pre-printing. The printing position is reserved, which saves the printing space of the pattern or design of the composite packaging material, and improves the integrity of the pattern or design.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work, wherein,

Fig. 1 shows a perspective view of a composite packaging material according to an embodiment of the present invention;

Figure 2 shows a cross-section of a composite packaging material according to one embodiment of the invention;

Figure 3 shows a cross-section of a composite packaging material according to another embodiment of the present invention;

Fig. 4 shows a cross-section of a composite packaging material according to yet another embodiment of the present invention.

reference sign

1 - Composite packaging material 2 - Individually packaged units

3,3'-dot matrix

11-waterproof layer 12-printing layer

13-base layer 14-dot matrix

15-gas barrier layer 16-sealant layer

17-First adhesive layer 18-Second adhesive layer

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Fig. 1 shows an example of the composite packaging material of the present invention. The form of the composite packaging material 1 is mostly a coil, including a plurality of units 2 for forming individual packages, and each unit is sprayed with dot matrix 3, 3', wherein dot matrix 3 and dot matrix 3' are different from each other. In addition, the relative position description from top to bottom in the layer structure description of the composite packaging material involved in the present invention corresponds to the relative position description from outside to inside when the composite packaging material is used for product packaging.

According to needs, the composite packaging material 1 can be cut into sheets according to each unit before leaving the factory.

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 1 includes a waterproof layer 11 , a printing layer 12 and a base layer 13 , and the dot matrix 14 is printed on the printing layer 12 . The composite packaging material 1 may further include a gas barrier layer 15 and a sealant layer 16 , and the gas barrier layer 15 and the sealant layer 16 are sequentially arranged below the base layer 13 . A first adhesive layer 17 may also be provided between the base layer 13 and the gas barrier layer 15 , and a second adhesive layer 18 may also be provided between the gas barrier layer 15 and the sealant layer 16 .

When the composite packaging material 1 shown in Figure 3 is used for product packaging, the layer structure from outside to inside is: dot matrix 14/waterproof layer 11/printing layer 12/base layer 13/first adhesive layer 17/gas barrier layer 15/Second adhesive layer 18/Sealant layer 16.

When the composite packaging material 1 shown in Figure 4 is used for product packaging, the layer structure from outside to inside is: dot matrix 14/printing layer 12/waterproof layer 11/base layer 13/first adhesive layer 17/gas barrier layer 15/Second adhesive layer 18/Sealant layer 16.

The layer structure of composite packaging material 1 of the present invention is not limited to the structure shown in Fig. 2-Fig. 4, as can also include:

Waterproof layer 11/dot matrix 14/printing layer 12/base layer 13/gas barrier layer 15/sealant layer 16; or, waterproof layer 11/dot matrix 14/printing layer 12/base layer 13/first adhesive layer 17/barrier layer Air layer 15/sealant layer 16; or, waterproof layer 11/dot matrix 14/printing layer 12/base layer 13/gas barrier layer 15/second adhesive layer 18/sealant layer 16; dot matrix 14/waterproof layer 11 / printing layer 12 / base layer 13 / gas barrier layer 15 / second adhesive layer 18 / sealant layer 16 and the like.

The waterproof layer 11 in the composite material 1 is thermoplastic resin, preferably polyolefin, including but not limited to low-density polyethylene (LDPE), metallocene polyethylene (m-PE) or a mixture thereof. The base layer 13 is a paper base.

From the perspective of environmental protection and food safety, the printing layer 12 is preferably made of water-based ink.

The production of composite packaging materials for liquid beverage packaging usually includes the following major steps:

Printing, creasing, punching, compounding, cutting, etc.

Theoretically, the dot matrix spraying operation can be carried out between the printing step and the compounding step or even after the compounding step.

Taking the dot-matrix spraying in the printing step as an example, the dot-matrix spraying is controlled based on the identification of the positioning mark on the composite packaging material by a photoelectric sensor. The dot matrix spraying device is connected with the dot matrix generation system at the same time, so as to ensure that each dot matrix is different.

The dot matrix spraying device is equipped with a drying device to ensure the printing quality of the dot matrix.

For packaging material blanks that have been printed but have not yet been compounded, the dot matrix can also be re-sprayed off-line by this method.

According to another embodiment of the invention, the spraying of the dot matrix is controlled based on the operating data of the printing device.

The working data of the printing equipment can be provided by the control system of the printing equipment, and can also be collected by a separate data acquisition device.

The working data includes but not limited to one or more of the feeding size, printing repeat length, color registration accuracy, maximum printing width, color group, and printing speed.

Dot matrix spraying can be carried out while printing other patterns, and can also be carried out separately after other patterns are printed.

The background color or pattern of the printing layer is a single color or a combination or superposition of at least two colors, and the pattern includes but is not limited to graphics, characters, trademarks or combinations thereof.

According to another embodiment of the present invention, the dot matrix is printed with paint that can be recognized by naked-eye invisible light, including near-infrared, far-infrared or ultraviolet.

Coatings that can be recognized by near-infrared or far-infrared rays invisible to the naked eye are carbon-containing visible coatings or carbon-containing invisible coatings, wherein the carbon-containing visible coatings are carbon-containing visible inks, toners or inks; carbon-containing The best invisible coatings are carbon-based invisible inks, toners or inks. Since the carbon-containing visible ink or ink, and the carbon-containing colorless ink or ink can absorb infrared rays of a specific band, only the infrared identification device can identify the information in the marking layer.

Paints that can be recognized by ultraviolet rays in light invisible to the naked eye are fluorescent paints.

According to a preferred embodiment of the present invention, the dot matrix generation system formulates dot matrix encoding rules and generates corresponding dot matrix according to the production process information such as enterprise ERP system or product production time, place of origin, production line, after the identification equipment recognizes the dot matrix, according to Coding rules decode the dot matrix into corresponding production process information.

The production process information is one of numbers, letters, and letters, or a string composed of two or more.

According to a preferred embodiment of the present invention, the dot matrix is a logo with a specified shape formed by repeated arrangement of the dot matrix module. The dot matrix module formulates coding rules according to the product production process information and is generated by the dot matrix generation system. The smallest unit of area that can be identified by the identification device. When some of the dot matrix modules in the dot matrix are blocked or destroyed, the identification equipment can still obtain information by identifying the rest of the dot matrix modules in the dot matrix.

Example 1

The base paper is unrolled and introduced to the flexographic printing equipment group through the introduction roller. After printing, it passes through the dot matrix spraying device erected between the printing equipment group and the embossing machine. The dot-matrix spraying device is provided with a photoelectric sensor to identify the positioning mark printed on the base paper substrate, and controls the dot-matrix spraying device to spray dot matrix 14 on the printing layer 12 . The dot matrix 14 is a mark with a specified shape that is arranged according to a certain rule by several small patterns, and the maximum distance between any two points on the edge of the small patterns is greater than 40 μm and not greater than 100 μm. The dot matrix spraying device is connected to the dot matrix generation system to generate dot matrix online, so each dot matrix on the base paper substrate is different. Then, after drying the ink, the base paper substrate sprayed with dot matrix is introduced into the creasing machine for creasing and punching. Afterwards, the material roll is introduced into the composite production line, and composited with the waterproof layer 11 and the like by a composite machine. It is then cut into rolls or groups of sheets as required.

Example 2

Use the same method or equipment as in Example 1, the difference is that after the printing is completed, the material roll will be introduced into the composite production line, and the composite machine will be composited with the waterproof layer 11. After the composite material roll passes through the dot matrix spraying device, it will be sprayed on the outside of the waterproof layer 11. dot matrix14.

Example 3

Using the same method and equipment as in Example 1, the difference is that the base layer 13 and the waterproof layer 11 are first combined, and then the material roll is introduced into the flexographic printing equipment group through the introduction roller, and after printing is completed, it is installed on the printing equipment group and presses. The dot matrix spraying device between the printing machines is controlled to spray the dot matrix 14 outside the printing layer.

Example 4

Using the same method and equipment as in Example 1, the difference is that what is connected with the dot matrix generation system is printing equipment or printing equipment, the photoelectric sensor recognizes the positioning mark printed on the base paper substrate, and the dot matrix generation system generates dot matrix online, The generated dot matrix information is transmitted to a printing device or a printing device, and the dot matrix is printed or printed on a substrate.

Example 5

Using the same method and equipment as in Embodiment 1-4, the coating used in dot matrix 14 is carbon-containing ink or ink that can be identified by infrared rays of specific wavelengths in invisible light to the naked eye. Carbon-containing inks or inks that absorb infrared rays of a specific wavelength can be identified by an identification device that emits infrared rays of a specific wavelength.

Example 6

The same method and equipment as in Embodiment 5, except that the paint used in the dot matrix 14 is colorless fluorescent ink, and the dot matrix 14 can be identified under the irradiation of an identification device that can emit ultraviolet rays.

Example 7

With the same method and equipment as in Embodiment 1-4, the dot matrix 14 formulates and generates coding rules based on information such as product production time, place of origin, and production line. A string of numbers for the message.

Example 9

A set of sheets comprising a single packaging unit formed from a plurality of packaging materials of Examples 1-8.

Example 10

A kind of sealed packaging, which is a liquid beverage sealed packaging formed by the packaging materials in Examples 1-8 or the sheet group in Example 9, after filling, sealing, shaping and other steps.

Claims (15)

1. a kind of compound package material, with multiple units for forming independent packaging, the packaging material include waterproof layer, Printing layer and basic unit, it is characterised in that each unit has been imprinted with dot matrix, different between the dot matrix of each unit, the point Battle array is directly or indirectly imprinted on the outside of the printing layer, and on the background color or pattern of the printing layer.

2. compound package material according to claim 1, it is characterised in that from inside to outside the packaging material include successively The basic unit, the printing layer, the dot matrix, the waterproof layer.

3. compound package material according to claim 1, it is characterised in that from inside to outside the packaging material include successively The basic unit, the printing layer, the waterproof layer, the dot matrix.

4. compound package material according to claim 1, it is characterised in that from inside to outside the packaging material include successively The basic unit, the waterproof layer, the printing layer, the dot matrix.

5. the compound package material according to any one of claim 1-4, it is characterised in that the dot matrix is using can be by The coating recognized by naked eyes black light is imprinted on the outside of the printing layer.

6. compound package material according to claim 5, it is characterised in that described to be recognized by naked eyes black light Coating for the visible coating or carbon containing of carbon containing invisible coating, wherein, the visible coating of carbon containing visible ink, ink for carbon containing Powder or ink, the invisible coating of carbon containing is invisible printing ink, ink powder or the ink of carbon containing.

7. the compound package material according to any one of claim 1-4, it is characterised in that the dot matrix by spraying, The mode for printing or printing is printed on the outside of the printing layer.

8. compound package material according to claim 7, it is characterised in that the dot matrix is while printing layer is printed Formed or independently formed after printing layer is printed.

9. the compound package material according to any one of claim 1-4, it is characterised in that the background color of the printing layer or Pattern is formed or formed by least two color additions by a kind of color.

10. the compound package material according to any one of claim 1-4, it is characterised in that the dot matrix is by some The mark with designated shape that fine pattern is arranged according to certain rules, the maximum of the edge any two points of the fine pattern away from From more than 40 μm and no more than 100 μm.

11. compound package materials according to claim 10, it is characterised in that the fine pattern in the dot matrix is according to one Fixed encoding law arrangement, the dot matrix generated according to encoding law have the ability of storage information, and can be set by dot matrix identification Standby identification.

12. compound package materials according to claim 11, it is characterised in that after the dot matrix is at least partially obscured or destroys It still is able to be recognized by dot matrix identification equipment.

13. compound package materials according to claim 12, it is characterised in that the identification equipment be near infrared gear, Far infrared apparatus or ultraviolet equipment.

14. a kind of sheet material groups, including the compound package material as any one of claim 1-13, it is characterised in that institute The unit that sheet material group is stated for forming individual packaging described in the compound package material has is constituted.

15. one kind are packed, compound package material by any one of claim 1-13 or by claim 14 institute The sheet material group composition stated.