JPH09160497A - Forgery preventive label - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to exactly and inexpensively execute the disclosure of forged commodity in the stage of a retailer by dispersing fluorescent material into a paper material and reversibly changing the color of a paper label to a prescribed color by irradiating the paper label with light of a specific wavelength at the time of subjecting the paper raw material of the paper label to sheeting, surface converting or finishing. SOLUTION: Filaments 3 formed by kneading the inorg. fluorescent material 2 and spinning the material are finely cut into a short fiber form at the time of adding a sizing agent to the label paper raw material formed by beating pulp or breaking waste paper and compounding the raw material. A small amt. of such short fibers are mixed with the paper raw material and, thereafter, the paper is formed. The paper is passed through press rolls and is subjected to thermal drying and further to surface converting and finishing. The converted paper for label obtd. in such a manner is uniformly dispersed with the photoreversible color-changing fibers 5 therein. The paper label 1 is merely an ordinary label under the sunshine or fluorescent lamp but if a dealer or consumer irradiates the label with light of a prescribed wavelength by using a small-sized lamp, the one surface of the label or the entire surface thereof is colored in a prescribed color by the inorg. fluorescent materials 2 added thereinto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photoreversible color-developing label in which a fluorescent substance is partially or wholly dispersed, and easily illuminates a counterfeit product that is very similar to a genuine product by irradiating with a light of a specific wavelength. Anti-counterfeit label that can be detected in

[0002]

2. Description of the Related Art As the quality and design of clothing and accessories have diversified as in recent years, general consumers often use only famous brands and popular characters as guidelines when purchasing desired products. . Due to this situation
The added value of famous brands and popular characters attached to the labels and products themselves will increase, and along with that, there will be illicit traders who seek unfair profits by freeride, and similar products with labels imitating brands and characters will appear on the market. It is flooding.

Even in international transactions, counterfeit products are manufactured in large quantities in a short period of time by utilizing the cheap labor of underdeveloped countries,
There are many cases in which imports and sales are much cheaper than genuine products, causing significant damage to the manufacturers and sellers of genuine products. If the counterfeit product is much worse in quality and sewing than the genuine product, even if a situation that spoils the brand image of the genuine product occurs, general consumers can easily find the counterfeit product in such a case, In addition, it is relatively easy to detect early.

However, with the advancement of dyeing technology and sewing technology for general textile products, even counterfeit products may look a lot like genuine products, and not only general consumers but also professional traders. In many cases, counterfeit products cannot be easily identified as genuine products. In this case, the counterfeit product will remain on the same sales route as the genuine product for a long period of time, and the manufacturer of the genuine product suffers irreparable damage.

[0005]

SUMMARY OF THE INVENTION Early detection of improper counterfeit goods in clothing and ornaments is necessary to maintain the profits of genuine product manufacturers and general consumers. Various methods of detection have been proposed and implemented. As an example, we use special fabrics for clothing and sew with special threads, but this method is very costly and cannot be easily changed even if it is re-mimicked by the manufacturer of the counterfeit product, At present, a method of sewing a specific woven label to a collar or a lining of clothing is being sought.

In the method of preventing forgery by a woven label, a part of the woven label is printed with an ink containing a specific fluorescent dye, or a fiber mixed with the fluorescent dye is woven. According to this printing or weaving method, the design and name on the surface of the woven label can be visually observed as usual, and the woven label emits light of a specific wavelength, so that retailers and general consumers can easily make genuine products. On the other hand, the problem remains that the manufacturing process of the woven label is increased and the cost of raw materials is increased and the selling cost is considerably increased.

The present invention has been proposed in order to improve the above-mentioned problems associated with the detection of counterfeit products by using woven labels, and it is possible to use a fluorescent material for papermaking, surface processing or finishing of paper raw materials for paper labels and tags. Disperse the substance in some or all of the paper material. INDUSTRIAL APPLICABILITY The present invention detects a counterfeit product that is very similar to a genuine product by irradiating with a light of a specific wavelength to reversibly change the color of a paper label or a tag into a specific color, and can detect the counterfeit label at the retailer stage. Is intended to provide. Another object of the present invention is to provide an anti-counterfeit label capable of accurately and inexpensively detecting a counterfeit product at the retailer stage.

[0008]

In order to achieve the above object, in a paper label 1 of the present invention, as shown in FIG. 1, a sizing agent or the like is added to a label paper raw material obtained by beating pulp or disaggregating used paper. At the time of compounding, the filament 3 (FIG. 2) spun by kneading the inorganic fluorescent substance 2 is chopped into short fibers, and a small amount of the short fibers is mixed with the paper raw material before papermaking.
In this papermaking process, either a known fourdrinier paper machine or cylinder paper machine may be used. Although not shown, the paper is passed through a press roll and then heat-dried by a drying cylinder to further perform surface processing and finishing. The obtained processed paper for labels generally has a higher basis weight than ordinary paper, and the photoreversible color-changing fibers 5 are uniformly dispersed therein.

The filament 3 illustrated in FIG. 2 is made by kneading the inorganic fluorescent substance 2 and spinning it, and the polymer 6 kneading the fluorescent substance is a known polyester, nylon, acrylic or the like. The inorganic fluorescent substance 2 develops blue, green, red, orange, yellow, etc. upon irradiation with excitation light and has little afterglow.

The paper label 10 shown in FIG. 3 is a short fiber obtained by kneading and spinning an inorganic fluorescent substance 2 which is colored by excitation light when a label material is prepared by adding a sizing agent or the like. A relatively thin first paper material 11 obtained by chopping into small pieces, mixing a small amount of this short fiber with a paper raw material, and then making a paper.
And a relatively thick normal second paper material 12. The paper materials 11 and 12 are surface-processed and finished after they are adhered to each other with a known adhesive 13.

The paper label 20 shown in FIG. 4 is prepared by adding a sizing agent or the like to a label paper raw material and then making a paper. In the surface processing step, at least one surface of the paper material 21 is surface-treated with a specific surface processing agent 22. Apply it and finish it evenly. The liquid surface-treating agent 22 contains an inorganic fluorescent substance that develops color upon irradiation with excitation light, and is composed of a clear solvent solution, emulsion, suspension or the like having no hiding power, and has a high hiding power of titanium oxide or the like. Contains no pigments or color spreaders. The surface-treating agent 22 may be applied to only one side of the paper material 21 or to both sides as shown in FIG.

The paper label 30 shown in FIG. 5 is composed of at least two layers of ordinary paper materials 31 and 32 prepared by adding a sizing agent or the like to a label paper raw material and then making a paper. Bonding via 33 and further surface finishing and finishing. In this adhesive 33,
Including an inorganic fluorescent substance that develops color when irradiated with excitation light, for example, a carboxylated resin that undergoes a thermal crosslinking reaction, an epoxy resin,
It is made of thermosetting acrylic resin or the like. In the paper label 30, so that the irradiation light reaches the adhesive layer 33 sufficiently,
It is preferable that one of the paper materials 31 and 32 is relatively thin.

The paper label 1 may be formed by performing desired printing on the label processed paper to which the inorganic fluorescent substance 2 is added, and then cutting the processed paper into a predetermined label shape. A design pattern 35 such as a design and a name as shown in FIG. 6 is printed on the paper label 1, and if these are pigments and color-developing materials having high hiding power, it is necessary to display them on only a part of the label. It costs. Further, if a part or all of the pattern 35 is printed with a photoreversible color-developing ink of a specific color containing an inorganic fluorescent substance, a more complex color can be obtained by irradiation with excitation light.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The paper label 1 of the present invention develops blue, green, red, orange, yellow, etc. by irradiation of excitation light in a paper material making process, a surface processing process, a laminating process, etc. The inorganic fluorescent substance 2 is added alone or in the form of short fibers, and no special process or device is required for this addition.
The paper label 1 is only a normal label under sunlight or fluorescent light, and if a trader or a consumer irradiates light of a specific wavelength with a small lamp, the inorganic fluorescent substance 2 added therein
By developing a specific color on one side or the whole surface of the label, it is possible to easily and surely confirm whether or not the label is a genuine product.

The surface of the paper label 1 of the present invention is almost the same as that of normal paper, and it is difficult to confirm that the inorganic fluorescent substance 2 is added to the paper label itself. Even if the presence of 2 is confirmed, it is difficult to add the fluorescent substance 2 that emits a specific color such as blue, green, and red to the label 1. The inorganic fluorescent substance 2 is less toxic than the organic fluorescent substance, and has good weather resistance, printability and other processability.

[0016]

EXAMPLES Next, the paper label 1 of the present invention will be explained based on examples. The filament 3 used in the present invention is generally made of an inorganic material having a particle size of about 1 to 3 μm as shown in FIG. The fluorescent substance 2 is manufactured by kneading about 20% by weight and spinning. On the other hand, the polymer 8 in which the fluorescent substance 2 is kneaded is polyester, nylon, acryl, cellulose acetate or the like having relatively high transparency, and the polymer is preferably polyester, for example.

The fluorescent substance 2 used is, for example, a blue color developing material (composition: Sr ₅ (PO ₄ ) ₃ Cl: Eu, manufactured by Nemoto Special Chemical Co., Ltd.), a green color developing material (composition: Zn ₂ GeO ₂ : Mn), a red color developing material. The body (composition: Y ₂ O ₂ S: Eu) and the like. This fluorescent substance emits light by irradiation with a lamp having a wavelength of 445 nm for a blue-colored material, 534 nm for a green-colored material, and 624 nm for a red-colored material, and has almost no afterglow, and thus has no ordinary sunlight or fluorescent light. Has the property of not emitting light.

The filament 3 is usually about 5-10 cm
The chopped short fibers are used as the photo-reversible discoloring fibers 5 of the short fibers. To obtain the label paper raw material, a predetermined amount of pulp is beaten or waste paper is disintegrated and added to the label paper raw material, and a sizing agent is added to the raw material. Mix a small amount of 5. It is preferable that the sizing agent such as rosin soap added in the compounding or inner surface processing step and the cationic synthetic resin imparting wet strength have as high transparency as possible.

In the papermaking process of the label paper raw material, a well-known Fourdrinier paper machine or cylinder paper machine is used, and the papermaking process is a dehydration and drying process in which the solid content concentration is concentrated to about 15% and the final concentration is obtained by filtration and concentration. The fibers are evenly dispersed on the mesh so as to obtain a uniform sheet. Although not shown, the wet paper material is passed through a press roll to a concentration of about 35%, and then passed through a drying cylinder to be heat dried.

Since the paper material after paper making is porous and easily absorbs liquid, a surface treating agent such as an aqueous solution, a solvent solution, an emulsion or a suspension is applied to the surface of the paper material. This surface treatment is generally performed by an on-machine method in the drying section of a paper machine. The surface of the obtained paper material is further flattened by a calendar (not shown), and a slitter is used to cut the paper material to a certain width. The obtained label processed paper has, for example, a basis weight of 150.
˜300 g / m ² , the basis weight is larger and thicker than that of ordinary paper, and the photoreversible color-changing fibers 5 are dispersed therein.

The paper label 1 is formed by performing desired printing on the label processing paper to which the inorganic fluorescent substance 2 is added, and then cutting it into a predetermined shape. For example, a pattern 35 such as a design and a name as shown in FIG. 6 is printed on the paper label 1, and since these are usually pigments and color-developing materials having high hiding power, they should be printed on the entire surface of the label. Avoid Further, part or all of the pattern 35 may be printed with a photoreversible color-forming ink of a specific color containing an inorganic fluorescent substance.

The paper label 1 may be attached to the front side of clothes (FIG. 6) such as the blouson 36 with the thread 37, for example. The attached paper label 1 is the same as a conventional paper label that does not develop color under sunlight or fluorescent light, and when it is illuminated with light of a specific wavelength with a small lamp to confirm genuine products, It can be easily identified whether it is a genuine product by developing a specific color such as red, orange, or yellow.

The paper label 10 shown in FIG. 3 includes a relatively thin first paper material 11 and a relatively thick normal second paper material 12. To obtain the paper raw material for the first paper material 11, a predetermined amount of pulp is beaten or waste paper is disintegrated and added to a label paper raw material, and a sizing agent or the like is added to the raw material. A small amount of fibrous photo-reversible color changing fiber 5 is mixed. The photo-reversible color-changing fiber 5 is obtained by chopping a filament similar to that in the above-described embodiment into short fibers, and kneading about 20% by weight of the inorganic fluorescent substance 2 having a particle diameter of about 1 to 3 μm and spinning the filament. And manufactured.

In order to produce the paper materials 11 and 12, a known Fourdrinier paper machine or cylinder paper machine is used. Papermaking is concentrated in a dehydration drying step, and then passed through a press roll, and then passed through a drying cylinder. And heat dry. Paper material 11, 12
After being bonded to each other with a known adhesive 13, the surface processing and finishing are performed in the same manner as in the above-mentioned embodiment.

In the paper label 10, a normal paper material 12
Is usually several times thicker than the first paper material 11,
The short fiber-shaped photo-reversible color-changing fibers 5 mixed with the paper material 11 exhibit a color-developing effect even when the addition amount thereof is smaller than that in the above-described embodiment. The paper label 10 is only a normal label under sunlight or fluorescent light, and if the surface of the paper material 11 side is irradiated with light of a specific wavelength with a small lamp, an inorganic fluorescent substance added to the paper material 11 is obtained. 2 causes the label surface to develop a specific color. The color development on only one side like the paper label 10 may be more effective than the full color development if the usage method is proper.

The paper label 20 illustrated in FIG. 4 is coated with the surface-treating agent 22 on the surface of at least one side of the paper material 21 in the surface processing step after papermaking, and is further finished to be smooth. The liquid surface-treating agent 22 contains an inorganic fluorescent substance that develops color upon irradiation with excitation light, and is composed of a clear solvent solution, emulsion, suspension or the like having no hiding power, and has a high hiding power of titanium oxide or the like. Do not use pigments or color spreaders.

The paper label 20 is only a normal label under sunlight or fluorescent light, and the surface of the paper coated with the specific surface-treating agent 22 is irradiated with light of a specific wavelength using a small lamp. Develops a specific color due to the inorganic fluorescent substance added to the surface-treating agent 22. In the paper label 20, it is possible to arbitrarily select the color development on only one side or the color development on both sides of the paper material 21.

The paper label 30 illustrated in FIG. 5 is made of at least two layers of ordinary paper materials 31 and 32 that are normally formed, and they are adhered to each other via an adhesive 33 in the step of attaching them. The adhesive 33 contains an inorganic fluorescent substance that develops a color upon irradiation with excitation light, and is made of, for example, a carboxylated resin, an epoxy resin, or a thermosetting acrylic resin that undergoes a thermal crosslinking reaction. In the paper label 30, at least one of the paper materials 31 and 32 needs to be sufficiently thin so that the irradiation light can sufficiently pass through the paper material 31 or 32 and reach the adhesive layer 33.

[0029]

In the paper label of the present invention, an inorganic fluorescent substance is added alone or in the form of short fibers at the time of the surface processing step and the pasting when the label paper material is made into a paper, and a special step or No device is required, and the anti-counterfeit paper label can be manufactured inexpensively with the same device as the conventional one. Even if an inorganic fluorescent substance is added to this paper label, the label is the same as a normal label under sunlight or fluorescent light,
If there is any doubt about the authenticity of the product to which the label is attached, it is easy for traders, retailers and consumers to irradiate the label with light of a specific wavelength with a small lamp, and whether it is an authentic product or not. You can definitely check.

The inorganic fluorescent substance contained in the paper label of the present invention emits light only when irradiated with light of a specific wavelength, and does not emit light under normal sunlight or fluorescent light, so that light of a specific wavelength is emitted during confirmation work. As long as there is a small, inexpensive lamp to generate, the lamp only has to illuminate the paper label. Moreover, it is almost impossible for a counterfeiter to manufacture the same paper label because it is not found that the special fluorescent substance is added only by visually observing the paper label.

Even if the counterfeit product is very similar to the clothing or ornaments to which the paper label is attached, even if a specialized trader cannot distinguish it from the appearance, the paper label enables the counterfeit product to be promptly and surely obtained. Can be caught. As a result, it is possible to prevent the counterfeit product from being present in the same sales route as the genuine product for a long period of time, and the manufacturer and the general consumer of the genuine product can promptly avoid damage caused by the counterfeit product. Even if this paper label is imitated by a counterfeiter, if the color development of the fluorescent substance to be added is changed, it is possible to quickly eliminate the re-imitation by the counterfeiter, and the damage caused by the counterfeiting can be suppressed.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing an enlarged paper label.

FIG. 2 is an enlarged sectional view illustrating a filament used in the present invention.

FIG. 3 is a schematic cross-sectional view showing a modified example of a paper label.

FIG. 4 is a schematic sectional view showing another modification of the paper label.

FIG. 5 is a schematic sectional view showing still another modified example of the paper label.

FIG. 6 is a perspective view showing a state in which the label of the present invention is attached to clothes.

[Explanation of symbols]

 1 Paper label 2 Fluorescent substance 3 Filament 5 Photo-reversible color changing fiber 6 Polymer

Claims (4)

[Claims] 1. When a pulp paper is beaten or waste paper is disintegrated and mixed with a sizing agent and the like and mixed, a filament spun by kneading an inorganic fluorescent substance is chopped into short fibrous shapes. A small amount of fiber is mixed with the paper raw material, then papermaking, surface processing, and finishing are performed, and the photoreversible color-changing fiber is dispersed in the processed paper for labels, which has a higher basis weight than Western paper, so that the label surface is Almost the same label as a normal label under sunlight or fluorescent light, but if you irradiate the label surface with light of a specific wavelength, you can check whether it is a genuine product or not. 2. When a pulp paper is beaten or a waste paper is disintegrated and a sizing agent is added to the raw material of the label paper, and mixed, an inorganic fluorescent substance is kneaded and spun into filaments. It consists of a relatively thin first paper material, which is made by mixing a small amount of fibers into a paper raw material and then papermaking, and a relatively thick normal second paper material, which are surface-finished and finished after being pasted together. As a result, the label surface is almost the same as normal paper, and it is only a normal label under sunlight or fluorescent light. If the label surface on the first paper material side is irradiated with light of a specific wavelength, it is a genuine product. Anti-counterfeit label that can confirm whether or not it is. 3. A label paper raw material obtained by beating pulp or disintegrating waste paper by adding a sizing agent and the like to prepare paper,
In the surface processing step, at least one surface of the paper material is surface-coated with a liquid surface-treating agent to which an inorganic fluorescent substance is added, and by further smoothing, the label surface is the same as a normal one. It is only a normal label under sunlight or fluorescent light, and it is possible to confirm whether it is a genuine product by irradiating the label surface on the side coated with a fluorescent substance with light of a specific wavelength to see if it is a genuine product Prevention label. 4. A label paper raw material obtained by beating pulp or disintegrating waste paper, comprising a normal paper material of at least two layers prepared by adding a sizing agent and the like and making paper, and an inorganic fluorescent substance in the step of laminating them. The label surface is the same as a normal one by adhering via an adhesive with added, and further surface processing and finishing, and it is only a normal label under sunlight or fluorescent light, and at least one of An anti-counterfeit label that allows you to confirm whether the product is genuine by irradiating the label surface with light of a specific wavelength and transmitting it through the paper.