CN213618818U

CN213618818U - Anti-counterfeiting film

Info

Publication number: CN213618818U
Application number: CN202020411907.8U
Authority: CN
Inventors: 山下茂树
Original assignee: Shanghai Fukusuke Industries Co ltd
Current assignee: Shanghai Fukusuke Industries Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2021-07-06
Anticipated expiration: 2030-03-26

Abstract

The utility model relates to the technical field of packaging films, in particular to an anti-counterfeiting film and a preparation method thereof, the anti-counterfeiting film comprises a substrate layer, the substrate layer is a polyethylene film layer, an anti-counterfeiting ink layer is printed on the surface of the polyethylene film layer, the anti-counterfeiting ink layer emits light under the irradiation of an ultraviolet lamp to distinguish true from false, the thickness of the polyethylene film layer is 30-80 mu, and the thickness of the anti-counterfeiting ink layer is 0.5-5 mu; compared with the prior art, the utility model, a cost and safety aspect are all outstanding, and anti-fake processing is hardly by the thin film of knowing brokenly, mainly be through printing ink on current thin film, anti-fake processing is carried out, this printing ink can be processed with present general printing mode, possess the luminous performance of specific part under the purple light shines, thereby can be used for differentiateing the true and false, the high cost problem that holographic processing and watermark processing exist has been avoided, and utilize fluorescent dye to judge the security problem that the true and false exists.

Description

Anti-counterfeiting film

[ technical field ]

The utility model belongs to the technical field of packaging film technique and specifically relates to an anti-fake film.

[ background art ]

At present, packaging films are increasingly branded and have high-grade and high-quality. However, the design of counterfeit packages is across the market, creating a flooding of counterfeit products, resulting in a reduced brand impression and loss of sales opportunities. Therefore, the adoption of the package with the anti-counterfeiting function is imperative. The traditional anti-counterfeiting technology comprises holographic processing and watermarking or utilizes fluorescent dye to judge authenticity, wherein the advantages of the holographic processing and the watermarking are difficult to imitate but have high cost, and the advantages of utilizing the fluorescent dye to judge authenticity are that the anti-counterfeiting processing is difficult to be identified and broken but have problems in safety.

[ contents of utility model ]

The utility model aims at solving foretell not enough and provide an anti-fake film, through can luminous performance under the purple light lamp shines to distinguish the true and false, it is high to be discerned the degree of difficulty, and with low costs, and the security is high, has avoided the high cost and the security problem that traditional anti-fake technique exists.

Design an anti-fake film for realizing above-mentioned purpose, including substrate layer 1, substrate layer 1 is the polyethylene film layer, the surface printing of polyethylene film layer has anti-fake printing ink layer 2, anti-fake printing ink layer 2 is luminous in order to differentiate the true and false under the ultraviolet lamp shines, the thickness on polyethylene film layer is 30 ~ 80 μm, the thickness on anti-fake printing ink layer 2 is 0.5 ~ 5 μm.

Further, the polyethylene film layer is a single-layer or three-layer polyethylene film.

Further, a gloss oil protection layer 3 is printed on the surface of the anti-counterfeiting ink layer 2.

Compared with the prior art, the utility model, have following advantage:

(1) the cost is low, the pigment which can emit light under the irradiation of an ultraviolet lamp is only needed, and the cost is almost the same as that of the common ink;

(2) the safety is high, and the used pigment is universal, so the safety is the same as that of the common ink;

(3) the difficulty of being identified and broken is high, the printing paper looks the same as common yellow printing under general conditions, but can emit light under the irradiation of an ultraviolet lamp;

to sum up: the utility model provides a cost and safety aspect are all outstanding, and anti-fake processing is hardly by the broken film of recognition, mainly be through printing ink on current film, go on anti-fake processing, this printing ink can be processed with present general printing mode, possess the performance that specific part can be luminous under the purple light lamp shines, thereby can be used for differentiateing the true and false, the high cost problem that holographic processing and watermark processing exist has been avoided, and utilize fluorescent dye to judge the security problem that the true and false exists, be worth popularizing and applying.

[ description of the drawings ]

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural diagram of the present invention;

in the figure: 1. substrate layer 2, anti-fake printing ink layer 3, gloss oil protective layer.

[ detailed description of the invention ]

The invention is further described below with reference to the accompanying drawings:

as shown in the accompanying drawing, the utility model provides an anti-counterfeiting film, including substrate layer 1, substrate layer 1 is the polyethylene film layer, and the surface printing on polyethylene film layer has anti-counterfeiting ink layer 2, and anti-counterfeiting ink layer 2 is luminous in order to differentiate the true and false under the ultraviolet lamp shines, and the thickness on polyethylene film layer is 30 ~ 80 μm, and the thickness on anti-counterfeiting ink layer 2 is 0.5 ~ 5 μm. Wherein, the polyethylene film layer is a single-layer or three-layer polyethylene film, and the surface of the anti-counterfeiting ink layer 2 can be printed with a gloss oil protective layer 3.

The utility model also provides a preparation method of anti-fake film, including following step: firstly, film raw materials are mixed according to any ratio, the film raw materials comprise polyethylene, additives and color master batches for coloring, the mixed raw materials are put into a raw material supply bin of a blow molding film making machine to be processed into a film, the film after the film is made by blow molding is coiled into a cylinder shape, then the film is conveyed to an intaglio printing machine or a flexographic printing machine to be printed and processed, so as to print an anti-counterfeiting ink layer on the surface of the polyethylene film layer, wherein the intaglio printing is a processing mode of printing by using a metal intaglio roller, the flexographic printing is a processing mode of performing relief printing by using a resin plate, the printing processing speed of the intaglio printing machine or the flexographic printing machine is 50-300 m/min, the temperature of a drying box is 20-80 ℃, and finally the film after the printing processing is coiled into a cylinder shape, so that the anti-counterfeiting.

The utility model discloses the product is the polyethylene film that adopts individual layer or three-layer for on sanitary material's the packing, print the processing on the film surface, partly can send yellow light under the purple light lamp shines in its printing, distinguish the true and false with this, be a wrapping bag that has anti-fake function. The thickness of a polyethylene film as a base material is 30-80 mu m, a printing ink layer with the thickness of 0.5-5 mu m is arranged on the surface of the base material, and an anti-counterfeiting functional layer capable of emitting light under the irradiation of an ultraviolet lamp is just the printing ink layer printed on the anti-counterfeiting functional layer.

As the general sanitary material packaging bag film is basically printed with 5-9 colors, three printing three primary colors of yellow, red and blue are available, most of the printed pattern design is represented by the three primary colors, then some spot colors are added on the basis, and background colors and characters (black and dark blue) in the pattern design and LOGO and the like are used in multiple spot colors. The printing of gloss oil is performed on the uppermost surface of the printing ink, and the performances such as rubbing resistance and heat resistance of the ink can be improved similarly to the case where a protective layer is coated on the entire printing surface. The printing process is to coat the colors required for printing of three primary colors, etc. one by one and finally coat gloss oil, but sometimes the final gloss oil process is omitted. The anti-counterfeiting ink can emit light under the irradiation of an ultraviolet lamp, so that the package has an anti-counterfeiting function by printing the anti-counterfeiting ink on the surface of the substrate film, and the anti-counterfeiting ink is yellow and is very similar to yellow in three primary colors in appearance, so that the anti-counterfeiting ink is free from discomfort when being used for printing design patterns. Therefore, the anti-counterfeiting ink is printed on the yellow pattern part of the common design in an overlapping mode, so that the anti-counterfeiting ink can have an anti-counterfeiting function without changing the design pattern, and the anti-counterfeiting ink can be printed at will by selecting the yellow pattern.

The utility model discloses a packaging film production processes does: the raw materials are purchased by manufacturers and then processed into films with any thickness and width on a blow molding machine. The raw materials comprise polyethylene, various additives and color master batch for coloring, and the raw materials are mixed in any ratio and then put into a raw material supply bin of a blow molding film making machine for production and processing. The thickness and width of the film can be freely changed according to the product specification requirements of customers. In addition, transparent films without the addition of color concentrates are also produced in large quantities. The film after film formation was blown and rolled into a cylindrical shape. Then, the printing process is carried to the next process.

The printing step is a step of imparting a forgery-preventing function to the film (coating of forgery-preventing ink). A typical printing method for a packaging film for a sanitary material is a method of performing printing using an intaglio printing press or a flexographic printing press, wherein intaglio printing is a method of performing printing using a metal gravure roll, and flexographic printing is a method of performing relief printing using a resin plate. The two printing processing modes are provided with a special printing machine, the printing processing speed is 50-300 m/min, the temperature of a drying box is 20-80 ℃, and each color is printed by the rotary printing processing machine one by one. The security ink is printed after all colors are printed, but one color is printed before the protective layer gloss oil is printed. The printed film is also rolled into a cylindrical shape and conveyed to the next step. The next process is many, such as cutting and sealing process, edge folding process, gold stamping process, labeling process, side edge sealing bag making process and the like, various post-process processing is carried out according to different shapes of products, and the final finished product is delivered to customers in a reel or bag state.

Through implementing, the utility model discloses processing LLD opal film panty-shape diapers packing adopts ordinary flexography processing, with the printing pattern design of product in the yellow colour part on to with anti-fake printing ink and general yellow ink, the LOGO can be luminous after the purple light shines, thereby can judge the true and false with this.

The present invention is not limited by the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and are all included in the protection scope of the present invention.

Claims

1. A security film characterized by: including substrate layer (1), substrate layer (1) is the polyethylene thin layer, the surface printing on polyethylene thin layer has anti-fake printing ink layer (2), anti-fake printing ink layer (2) are luminous in order to differentiate the true and false under the purple light lamp shines, the thickness on polyethylene thin layer is 30 ~ 80 μm, the thickness on anti-fake printing ink layer (2) is 0.5 ~ 5 μm.

2. A security film according to claim 1, wherein: the polyethylene film layer is a single-layer or three-layer polyethylene film.

3. A security film according to claim 1, wherein: and a gloss oil protective layer (3) is printed on the surface of the anti-counterfeiting ink layer (2).