CN110561869A

CN110561869A - Continuous web material forming a plurality of packages, group of composite sheet material and package group

Info

Publication number: CN110561869A
Application number: CN201910916870.6A
Authority: CN
Inventors: 李犇
Original assignee: Fenmei (beijing) Trading Co Ltd
Current assignee: Fenmei (beijing) Trading Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2019-12-13

Abstract

The invention provides a continuous coiled material for forming a plurality of packages, wherein the outermost layer of the continuous coiled material is a barrier layer, the continuous coiled material is also provided with a base material layer and a pattern layer printed on the base material layer, a unique identification label is arranged on a unit for forming each package, and a protective layer, a hidden layer and an easily-scraped layer are sequentially arranged above the identification label. The technical scheme of the invention is directed at one-object one-code liquid beverage package, in order to prevent a unique identification label of a product from being stolen and swept before the product is sold, a hidden layer is covered on the identification label, and the invention is different from other shielding modes.

Description

Continuous web material forming a plurality of packages, group of composite sheet material and package group

Technical Field

The present invention relates to the field of food packaging, and in particular to a continuous web, a composite sheet material set for forming a plurality of packages, and a package set made therefrom.

Background

Single-use, disposable packaging containers for liquid food products such as milk, dairy products, non-carbonated beverages, fruit juices, purees and the like are usually produced from a packaging laminate comprising a substrate layer of paper or paperboard and a liquid-tight layer of thermoplastic. One common layer structure of a packaging laminate is as follows: the substrate layer is covered by a layer of low density polyethylene plastic to form a barrier layer of the packaging laminate, i.e. the side of the final package not in contact with the enclosed product. The inside of the substrate layer is covered with a similar low density polyethylene layer for laminating a thin aluminum foil to the substrate layer. In order to avoid contact between the encapsulated product and the aluminium foil, the aluminium foil layer is covered by a polymer layer, which in turn is covered by an innermost layer of low density polyethylene or a blend of low density polyethylene and linear low density polyethylene, which innermost layer will be in direct contact with the encapsulated product in the packaging container, which innermost layer typically has sufficient properties for heat sealing and for acting as a barrier to moisture of the encapsulated product filled in the package. Current sealed packages are generally made from a continuous web of paper-based composite material having a paper fiber core surrounded by one or more polymeric coatings and/or barrier materials such as metal films to protect the core material from contact with the contained liquid product and also to protect the product from gases and moisture in the surrounding environment.

The compounded continuous coiled material has a plurality of continuous and uninterrupted units for forming individual packages, and the continuous coiled material can be directly filled to form sealed packages; the continuous web may also be slit into groups of sheet material comprising a number of composite sheets, each composite sheet being a unit forming an individual sealed package, from which the final sealed package is filled and formed.

In the coiled material filling equipment, continuous coiled materials are firstly sterilized, then are gradually formed into a cylindrical material barrel through each stage of forming mechanism, and then are firmly sealed together at the longitudinal two sides of the material barrel when passing through a longitudinal sealing mechanism, namely the material barrel is longitudinally sealed. Liquid such as milk, beverage and the like is guided to the inner space of the material cylinder which is longitudinally sealed through a vertical material filling pipe, then a transverse sealing mechanism of the filling equipment transversely seals the material cylinder at regular intervals, namely, the material cylinder is transversely sealed at the transverse sealing position, and the material cylinder is divided into independent sealed packages after transverse sealing. Common sealing packages in the market generally comprise a bag-shaped pillow package (which is not required to be shaped after being transversely sealed and cut) or a box-shaped brick package (which is shaped after being transversely sealed and cut) according to the shape of a container.

In a sheet filling plant, a continuous web forms a group of composite sheets, and each composite sheet is longitudinally sealed already before filling, is fed in the form of a web, is bottom-sealed and top-sealed in a filling machine, and is then formed. Specifically, a longitudinally sealed composite sheet is prefabricated, placed in a sheet bin, drawn out one by a suction device, opened to form a bottomless and uncovered rectangular paper tube, pushed onto a forming rod, the sealed base portion of the paper tube is activated by hot air, the bottom is folded by a rotary cross folder and a longitudinal folder, and is pressurized and sealed by a specially designed pressure part to form a paper box with a bottom seal and an open top, and the bottom of the paper box after sealing is slightly concave, so that the paper box can be stably erected and cannot be reached after being filled with contents. The filling of the contents through the top of the carton is controlled and monitored by an inductive flow measurement system to ensure high filling accuracy. After filling, the carton is sealed at the top sealing station under aseptic conditions. Steam injection system flows and spouts steam into the carton before the carton top is sealed to reduce the headspace in the carton to heat the carton in order to seal, simultaneously later stage because steam cooling makes the indent behind the shaping of carton top, and the carton outward appearance is more regular. When the opening is sealed, the ultrasonic welding device vibrates at high frequency, so that the inner layer PE at the transverse sealing position at the top of the paper box is melted, and the paper box is firmly sealed after being compressed and isolated from the outside air. At the top forming station, the sealed transverse top seal of the carton is folded, the PE at the corresponding positions of the triangular area at the top of the carton and the side surface of the triangular area is activated by hot air, and the activated PE is pressed by a folding claw and stuck together to complete the carton forming.

In recent years, in order to respond to the national requirements for establishing a quality control system and the information traceability system, further enhance product management and market supervision, and set a relevant unique identification label on a product for health care and food and medicine products related to human safety, sanitation and health, wherein the identification label can be in a form of bar codes, two-dimensional codes or digital codes and the like for traceability tracking or anti-counterfeiting, and consumers scan the identification label by using a mobile phone to obtain traceability production and other information related to the product, so that the purposes of participating in activities, verifying authenticity of commodities, tracing products and the like are achieved.

The product packaging is provided with a unique identification label for participating in the purposes of product points, prize exchange and the like, and if the unique identification label is not shielded and directly exposed on the surface of the product, the unique identification label is easily stolen and scanned by a non-purchaser before the product is sold. In order to solve the problem of stealing and scanning, one method is to print a hidden layer on the surface of the unique identification label for shielding, then compound a barrier layer on the outermost layer, and the barrier layer can further protect the unique identification label.

Disclosure of Invention

The invention aims to solve the technical problem, prevent the product package from being stolen and simultaneously enable the hidden layer shielding the unique identification label on the product package to be easily scraped, provide convenience for consumers to use and reduce the risk of damaging the identification label.

According to one aspect of the present invention, there is provided a continuous web for forming a plurality of packages, the continuous web having a barrier layer as an outermost layer, a substrate layer, and a pattern layer printed on the substrate layer, and having a unique identification label on a unit for forming each package, characterized in that a protective layer, a concealing layer, and a scratch-off layer are sequentially provided over the identification label.

According to a preferred embodiment of the invention, the cover area of the protective layer is not smaller than the cover area of the identification label.

According to a preferred embodiment of the invention, the cover area of the concealing layer is not larger than the cover area of the protective layer.

According to a preferred embodiment of the invention, the cover area of the scratch-off layer is not smaller than the cover area of the concealing layer.

According to a preferred embodiment of the invention, the concealing layer and/or the scratch-off layer is not in direct contact with the identification label, the concealing layer partially obscuring the identification label.

According to a preferred embodiment of the invention, the adhesion between the blocking layer and the scratch-resistant layer is less than the adhesion between the scratch-resistant layer and the concealing layer and/or less than the adhesion between the concealing layer and the protective layer and/or less than the adhesion between the protective layer and the identification label, so that the blocking layer separates from the scratch-resistant layer first when the identification label is scratched in place.

According to a preferred embodiment of the invention, the adhesion between the scratch-off layer and the concealing layer is less than the adhesion between the barrier layer and the scratch-off layer and/or less than the adhesion between the concealing layer and the protective layer and/or less than the adhesion between the protective layer and the identification label, so that the scratch-off layer separates from the concealing layer first when the identification label is scratched into place.

According to a preferred embodiment of the invention the adhesion between the concealing layer and the protective layer is less than the adhesion between the protective layer and the identification label, so that the concealing layer separates from the protective layer when the identification label position continues to be scratched after the barrier layer has separated from the concealing layer.

According to a preferred embodiment of the present invention, the scratch-off layer is a resin containing silicone oil.

According to a preferred embodiment of the present invention, the mass fraction of the silicone oil to the resin in the scratch-off layer is 2% to 5%.

According to a preferred embodiment of the present invention, the protective layer is a synthetic resin that is translucent or transparent.

According to a preferred embodiment of the invention, the concealing layer is at least one layer of white ink and/or black ink and/or silver ink.

According to a preferred embodiment of the present invention, the identification tag is formed by one or a combination of a plurality of numbers, letters, characters, figures, two-dimensional codes and one-dimensional codes.

According to another aspect of the invention, a set of composite sheet material is provided, consisting of a number of composite sheets cut from the aforesaid continuous web, each of said composite sheets being intended to form said each package.

According to a further aspect of the invention, a packaging set is provided, consisting of a plurality of packages made from the aforementioned continuous web or of a plurality of packages made from composite sheets of the aforementioned set of composite sheet material.

According to the invention, the easy-to-scrape layer is additionally arranged above the hidden layer, and the structure of the easy-to-scrape layer is loose, so that the interlayer bonding force generated when the hidden layer and the barrier layer are directly combined can be reduced, and the shielding above the hidden layer can be easily scraped without great force and damage to the identification label.

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 continuous web of one embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of a continuous web according to one embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a continuous web according to another embodiment of the present invention.

Fig. 4 is a top view of an identification tag according to an embodiment of the invention.

FIG. 5 is a schematic view of a sheet material in a composite sheet material set according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a package in a package group according to an embodiment of the present invention.

Reference numerals

1-units per package 2-continuous web

11-substrate layer 12-pattern layer 13-identification label

14-protective layer 15-concealing layer 16-scratch-resistant layer

17-barrier layer

Detailed Description

The technical means adopted by the invention to achieve the preset object are further described below by combining the drawings and the preferred embodiments of the invention.

Fig. 1 shows a perspective view of a continuous web 2 for forming a plurality of packages according to one embodiment of the present invention. The continuous web 2 has a number of continuous and unbroken units 1 for forming each package, on each unit 1 a unique identification label 13 is printed. The identification tag 13 may be composed of one or more of numbers, letters, characters, figures, two-dimensional codes and one-dimensional codes, and the identification tag 13 has uniqueness, i.e., the identification tag 13 on each unit 1 is different from the identification tags 13 on other units 1. The identification label 13 is spray printed during the production of the continuous web 2, either while the continuous web 2 is printed with the pattern layer 12, or after the pattern layer 12 is printed, the identification label 13 is spray printed before the lamination step of the barrier layer 17. The identification label 13 is not associated with specific information or content during spray printing, and the association of the identification label 13 with the specific information is completed by a liquid beverage production enterprise. Continuous coiled materials or composite sheet material groups produced by a packaging material manufacturing enterprise are conveyed to a liquid beverage production enterprise, the liquid beverage production enterprise associates the identification tag 13 with different types of information according to requirements so as to realize different functions, such as association of the identification tag 13 with information of a liquid beverage production process, recording of supply source, production time, production batch, delivery place and the like of a product, and identification of the identification tag 13 can obtain traceability information of the product; or the identification label 13 is associated with information such as prize exchange, point, anti-counterfeiting and the like to realize corresponding functions.

FIG. 2 is a schematic cross-sectional view of a continuous web according to one embodiment of the present invention. The cross-sectional structure of the continuous roll 2 is, in order from the inside to the outside, a base material layer 11, a pattern layer 12, an identification label 13, a protective layer 14, a concealing layer 15, a scratch-off layer 16, and a barrier layer 17. The base material layer 11 is generally a paper base material, the pattern layer 12 is printed on the base material layer 11, and the identification label 13 is jet-printed on the pattern layer 12. After identification label 13 spouts seal the completion, cover protective layer 14 in identification label 13 top, protective layer 14's effect is in identification label 13 top formation smooth, compact rete, is convenient for strike off the hidden layer 15 that shelters from identification label 13 to avoid identification label 13 damaging in the process of striking off. The protective layer 14 may be made of a synthetic resin such as UV varnish or other chemical solvent that achieves the same or similar effect. The protective layer 14 is in a translucent or transparent state, the thickness is 2-5 microns, and the transparency of the protective layer 14 enables the identification label 13 below to be read through the protective layer 14.

The top of protective layer 14 is hidden layer 15, and hidden layer 15's effect shelters from identification label 13, can only discern identification label 13 after getting rid of hidden layer 15, prevents to steal to sweep. The concealing layer 15 may be a single layer structure, such as a single opaque ink layer or a silver ink layer; however, to enhance the barrier and visual effect, the concealing layer 15 typically comprises more than two, preferably three, layer structures, each of which may be printed separately using conventional ink or silver ink. The more layers the concealing layer 15 comprises, the better the masking effect on the identification tag 13, but the corresponding increase in production and time costs, also requires a stronger scraping force. The number of layers, the printing sequence of the layer structure, the type or color of the printing ink of the hidden layer 15 can be flexibly selected and set according to the needs, for example, when the hidden layer 15 is used for printing at least one layer of white ink and/or black ink and/or silver ink, a layer of black ink or silver ink can be printed on the area covered by the identification label 13, and then 1-2 layers of white ink are printed on the black ink or silver ink in an overlapping manner; or a layer of white ink or black ink is printed on the area covered by the identification label 13, and a layer of silver ink is printed on the white ink or the black ink in an overlapping manner; the concealing layer 15 may also be a white ink printed in three layers. In terms of effect, the shielding effect of the identification label 13 is better when the concealing layer 15 is printed by black ink, silver ink or other dark color ink, but the substrate layer 11 of the continuous roll 2 is generally made of white paper substrate, and the concealing layer 15 is printed by only black ink, silver ink or dark color ink, which has strong color contrast with the surrounding environment, and has a sharp visual effect, thus affecting the beauty. Therefore, in the layer structure of the concealing layer 15, normally, black ink, silver ink, or another dark ink layer is provided on the lower side (the side of the concealing layer 15 close to the identification label 13), and one or more white ink layers or other light ink layers having a color close to the ambient color are printed on the upper side in accordance with the visual effect. The concealing layer 15 can exhibit a masking effect and also has a more beautiful visual effect.

The easy-to-scrape layer 16 is arranged above the concealing layer 15, the component of the easy-to-scrape layer 16 can be resin containing silicone oil, the mass fraction of the silicone oil and the resin in the component of the easy-to-scrape layer 16 is 2% -5%, and the adhesive force between the easy-to-scrape layer 16 and the concealing layer 15, between the easy-to-scrape layer 16 and the barrier layer 17 can be influenced by adjusting the mass fraction of the silicone oil. If the scratch-resistant layer 16 is not present, the barrier layer 17 and the concealing layer 15 are in direct contact, the adhesion between the two is strong, and it is difficult to remove the barrier layer 17 from above the concealing layer 15, and thus it is difficult to remove the concealing layer 15 from above the identification label 13. The easy-to-scrape layer 16 is provided for the purpose of reducing the difficulty of removing the concealing layer 15 because the easy-to-scrape layer 16 has a relatively loose structure with respect to the barrier layer 17 and the concealing layer 15.

In one case, the adhesion between the barrier layer 17 and the scratch-resistant layer 16 is less than the adhesion between the scratch-resistant layer 16 and the concealing layer 15, and/or the adhesion between the barrier layer 17 and the scratch-resistant layer 16 is less than the adhesion between the concealing layer 15 and the protecting layer 14, and/or the adhesion between the barrier layer 17 and the scratch-resistant layer 16 is less than the adhesion between the protecting layer 14 and the identification tag 13, so that the barrier layer 17 is separated from the scratch-resistant layer 16 first when the identification tag 13 is scratched.

Alternatively, the adhesion between the scratch-resistant layer 16 and the concealing layer 15 is less than the adhesion between the barrier layer 17 and the scratch-resistant layer 16, and/or the adhesion between the scratch-resistant layer 16 and the concealing layer 15 is less than the adhesion between the concealing layer 15 and the protective layer 14, and/or the adhesion between the scratch-resistant layer 16 and the concealing layer 15 is less than the adhesion between the protective layer 14 and the identification tag 13, so that the scratch-resistant layer 16 separates from the concealing layer 15 first when the identification tag 13 is scratched. Both of the foregoing cases enable the barrier layer 17 to be easily peeled off from above the concealing layer 15.

In the continuous web 2, the adhesive force between the concealing layer 15 and the protective layer 14 is smaller than the adhesive force between the protective layer 14 and the identification label 13, and therefore, when the position of the identification label 13 is continuously scratched after the barrier layer 17 is separated from the concealing layer 15, the concealing layer 15 is separated from the protective layer 14. By providing the scratch-off layer 16, the barrier layer 17 can be easily peeled off from above the concealing layer 15, and the concealing layer 15 can be easily peeled off from above the identification label 13, so that the consumer can easily read the identification label 13.

The outermost layer of the continuous web 2 is a barrier layer 17The barrier layer 17 is generally a resin, preferably a polyolefin. The thickness of the barrier layer 17 is generally not greater than 25 microns, preferably between 10 and 18 microns. Barrier layer 17 is capable of insulating against air and moisture in the environment, extending the shelf life of continuous web 2, and also preventing identification label 13 from being worn or damaged during transport. The continuous web 2 may also be provided with a barrier layer and a sealant layer below the substrate layer 11, the barrier layer including, but not limited to, aluminum foil, ethylene vinyl alcohol copolymer (EVOH), polyvinyl alcohol (PVOH), inorganic oxides (e.g., SiO), and the like₂) Or a polyamide resin. The sealing layer is typically a thermoplastic resin.

As shown in fig. 2, the protective layer 14 is located above the identification label 13, and the coverage area of the protective layer 14 is not smaller than that of the identification label 13, so that other layer structures above the identification label 13, such as the concealing layer 15 and the scratch-off layer 16, cannot directly contact the identification label 13; concealing layer 15 is located protective layer 14 top, and the coverage area of concealing layer 15 is not less than identification label 13's coverage area in fig. 2, and concealing layer 15 shelters from identification label 13 of below completely, and the coverage area of concealing layer 15 is not more than the coverage area of protective layer 14 of below, is convenient for follow-up completely get rid of concealing layer 15 from identification label 13 top. Above the concealing layer 15 is a scratch-off layer 16, the scratch-off layer 16 serving to assist in removing the barrier layer 17 from above the concealing layer 15, so that the area covered by the scratch-off layer 16 is not less than the area covered by the concealing layer 15.

Fig. 3 shows a schematic cross-sectional structure of a continuous web 2 according to another embodiment of the present invention. Fig. 3 differs from fig. 2 in that the concealing layer 15 in fig. 2 completely conceals the identification tag 13, and in fig. 2 the concealing layer 15 only partially conceals the identification tag 13. The concealing layer 15 is used to prevent the identification tag 13 from being stolen, as long as the concealing area of the concealing layer 15 shields the identification tag 13 so that the uncovered part of the identification tag 13 cannot be read by the reading device. Partially blocking the identification tag 13 may reduce the cost of printing ink, and the unblocked portion of the identification tag 13 may also prompt the consumer to actively scratch the concealing layer 15 and scan the identification tag 13 for associated information content. To increase the interest, the concealing layer 15 may also be printed in the form of text or graphics, as shown in fig. 4, as long as the portion of the identification tag 13 not obscured by the concealing layer 15 is not readable by the device, so that the concealing layer 15 serves both to obscure the identification tag 13 and to encourage the consumer to scan the identification tag 13. While the identification tag 13 in fig. 2 is completely obscured by the concealing layer 15, text or graphics may be printed over the concealing layer 15 to prompt or attract a consumer to scratch the concealing layer 15 and scan the identification tag 13 for information.

The invention also provides a composite sheet material group, wherein after the continuous coiled material 2 is subjected to jet printing of the identification label 13, the protective layer 14, the hidden layer 15 and the easy-scraping layer 16 are sequentially coated, indentation and punching are carried out, and the outermost barrier layer 17 is compounded, the unit forming each package on the continuous coiled material 2 is used as a cutting unit for cutting, so that the continuous coiled material 2 is separated into a plurality of independent sheets forming each package, and the composite sheet material group is formed.

The invention also provides a packaging set, which is formed by filling, sealing, forming and other steps of the continuous coiled material 2 or the composite sheet material set.

The invention is particularly suitable for paper based liquid aseptic packaging, but the invention is not limited thereto, and the invention is also applicable to other laminated composite packaged products, such as food, medical products.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary 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. A continuous coiled material for forming a plurality of packages, the outmost layer of the continuous coiled material is a barrier layer, the continuous coiled material is further provided with a base material layer and a pattern layer printed on the base material layer, and a unique identification label is arranged on a unit for forming each package.

2. The continuous web of claim 1, wherein the protective layer has a coverage area that is not less than a coverage area of the identification label.

3. the continuous web according to claim 1 wherein the coverage area of the hidden layer is no greater than the coverage area of the protective layer.

4. The continuous web according to claim 1, wherein the coverage area of the scratch-off layer is not less than the coverage area of the hidden layer.

5. The continuous web according to claim 1, wherein the concealing layer and/or the scratch-off layer are not in direct contact with the identification label, the concealing layer partially obscuring the identification label.

6. The continuous web according to claim 1, wherein the adhesion between the barrier layer and the scratch-off layer is less than the adhesion between the scratch-off layer and the concealing layer and/or less than the adhesion between the concealing layer and the protective layer and/or less than the adhesion between the protective layer and the identification label, such that the barrier layer is first separated from the scratch-off layer when the identification label is scratched into place.

7. The continuous web according to claim 1, wherein the adhesion between the scratch-off layer and the concealing layer is less than the adhesion between the barrier layer and the scratch-off layer and/or less than the adhesion between the concealing layer and the protective layer and/or less than the adhesion between the protective layer and the identification label, such that the scratch-off layer separates from the concealing layer first when the identification label is scratched in place.

8. The continuous web according to claim 6 or 7 wherein the adhesion between the concealing layer and the protective layer is less than the adhesion between the protective layer and the identification label, such that the concealing layer separates from the protective layer upon continued scraping of the identification label position after separation of the barrier layer from the concealing layer.

9. Continuous web according to any of claims 1-7, characterised in that the scratch-off layer is a resin containing silicone oil.

10. The continuous web according to claim 9, wherein the silicone oil and the resin in the scratch-off layer are present in a mass fraction of 2% to 5%.

11. The continuous web according to any one of claims 1 to 7, wherein the protective layer is a translucent or transparent synthetic resin.

12. The continuous web according to any one of claims 1 to 7, wherein the hidden layer is at least one layer of white ink and/or black ink and/or silver ink.

13. The continuous web according to any one of claims 1 to 7 wherein the identification tags are constituted by one or a combination of more of numbers, letters, words, graphics, two-dimensional codes, one-dimensional codes.

14. A set of composite sheet material consisting of a number of composite sheets cut from a continuous web according to any one of claims 1 to 13, each of said composite sheets being intended to form said each package.

15. A packaging group consisting of a plurality of packages made from a continuous web according to any one of claims 1-13 or a plurality of packages made from composite sheets of the group of composite sheet materials according to claim 14.