JP2009282169A - Functional label and method for using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select a region to be concealed and a region where information can be concealed and a region to be concealed easily without using the trouble of manually removing the label and hiding the label and manually viewing the information. It is an object to provide a functional label that can be used and a method of using the same.
SOLUTION: On one surface of a sheet 2 having a transparent portion 6 printed and formed with a transparent ink, a printing portion 3 is provided with a temperature indicating ink which is colored at room temperature and becomes transparent by heating or heating. A functional label 1 having a configuration in which a pressure-sensitive adhesive layer 4 is provided on the other surface of the paper 2 and a protective paper 5 is provided so as to cover the pressure-sensitive adhesive layer 4. By making it transparent by heating or heating, the transparent portion 6 of the underlying paper 2 can be seen through.
[Selection] Figure 1

Description

  TECHNICAL FIELD The present invention relates to a functional label and a method of using the same, and in particular, concealed information is easy to use and concealed by manually removing the label and taking the trouble of viewing the information. The present invention relates to a function label capable of selecting a region and a region where information can be confirmed by making it transparent, and a method of using the same.

  The conventional concealment label has a configuration in which an adhesive is provided on the base material, and an adhesive that re-adheses and re-peels is used on the adhesive, and the concealment label is pasted so as to cover the concealment information. To confirm, I peeled off the label and looked at the contents. This work is manual and unsuitable for large-scale work.

As another concealment method, as shown in Patent Documents 1 and 2, a concealment label in which a temperature indicating ink is applied to a transparent film or the like and the concealed information can be confirmed by temperature change is also conceivable. In addition, there are problems such as emission of harmful components in disposal after use of a transparent film, which is a plastic film. Since the base material that is transparent from the beginning is used, the range of the transparent region cannot be limited.
Another problem is that the temperature indicating inks described above are not generally available and handled, and thus are not so popular in society.
Japanese Patent Laid-Open No. 11-73110 JP 2006-347103 A

  Therefore, the present invention eliminates the hassle of manually viewing hidden information, removing the label, and viewing the information, and is easy to use. It is an object of the present invention to provide a function label that can be selected and a method of using the function label.

The functional label according to the present invention is printed with the temperature indicating ink which is colored at normal temperature on one surface of the paper having a transparent portion which is printed and formed with the transparent ink, and which is made transparent by heating or heating. A protective paper is provided so as to cover the pressure-sensitive adhesive layer.
According to a second aspect of the present invention, the transparent portion of the underlying paper can be seen through by making the printed portion of the temperature indicating ink transparent by heating or heating.

According to a third aspect of the present invention, the printed portion with the temperature indicating ink is colored at normal temperature and is made transparent at a temperature of 33 to 37 ° C.
According to a fourth aspect of the present invention, the printing portion using the temperature indicating ink is colored at room temperature and is made transparent at a temperature of 50 to 190 ° C.

  According to the fifth aspect of the present invention, the method of using the functional label of the present invention is colored on one side of a paper having a transparent part printed and formed with a transparent ink, and is transparent by heating or heating. Information to be concealed by using a function label with a configuration in which a printing portion is provided with temperature indicating ink, an adhesive layer is provided on the other side of the paper, and a protective paper is provided so as to cover the adhesive layer. Is peeled off the protective paper and a functional label is attached with an adhesive layer so as to cover the information, and the printed portion with the temperature ink is added from the state where the information is concealed at room temperature. By heating or heating, the printing part becomes transparent, and information described in the article located below can be seen through the transparent part of the paper.

  The functional label of the present invention is provided with a printing portion with a temperature indicating ink which is colored at room temperature and becomes transparent by heating or heating on one side of a paper having a transparent portion printed and formed with a transparent ink, By providing a pressure-sensitive adhesive layer on the other side of the paper and further providing a protective paper so as to cover the pressure-sensitive adhesive layer, the printed part with temperature ink is made transparent by heating or heating. The transparent portion of the paper sheet can be seen through. This eliminates the trouble of manually removing the concealment label and viewing the concealed information. In particular, since the information can be confirmed by making the temperature indicating ink transparent by heat treatment, automation by a machine becomes easy.

  The printing area with temperature ink is colored at normal temperature and has a function of concealing. The concealed area of the printing area and the transparent area of the paper with clearing ink are combined to warm the concealed area. Alternatively, the information (on the article) concealed by applying the functional label can be seen through heating and making it transparent, and through the transparent part of the paper under the transparent part. At this time, set the temperature ink printing area, or the heating or heating area of the printing area, select the area to be transparent, and further clear the paper under the transparent area. By adjusting the area of the transparent part by ink, the size of the part to be transparent by the temperature indicating ink and the area of the transparent part by the transparent ink of the paper can be appropriately designed.

The functional label in the present invention causes a problem such as emission of harmful components by disposal after use of the label by using paper mainly composed of pulp without using a transparent film which is a plastic film as a base material. Absent. Furthermore, the transparent part formed with the transparent ink of the paper can easily limit or change the transparent area by appropriately changing the print pattern to be formed.
As a means of concealing information, the temperature label ink printing part is heated or heated by sticking the functional label of the present invention to an arbitrary article with an adhesive layer without ordinary people printing temperature ink. By simply doing this, the hidden information can be seen and recognized, making it effective and easy to use at home.

  FIG. 1 is a schematic view showing one embodiment of the functional label of the present invention. A transparent portion 6 formed by printing and forming with a transparent ink on the paper 2 is provided at a fixed location. On one surface of the paper 2, a printing portion 3 is formed which has an area larger than the size of the transparent portion 6 and is made of temperature indicating ink which is colored at room temperature and becomes transparent by heating or heating. An adhesive layer 4 is provided on the entire other surface of the paper 2, and a protective paper 5 is provided so as to cover the adhesive layer 4.

  FIG. 2 is a schematic view showing another embodiment of the functional label of the present invention. The transparent part 6 formed by printing with the transparent ink on the paper 2 is divided and provided in a pattern. On one surface of the paper 2, a printing portion 3 is formed with temperature indicating ink that is colored at room temperature and transparent by heating or heating in a form that covers all of the transparent portion 6. In addition, the adhesive layer 4 is provided on the entire other surface of the paper 2, and the protective paper 5 is provided so as to cover the adhesive layer 4.

  In FIG. 3, the schematic explaining the usage method using the functional label of this invention is shown. The functional label 1 having the structure shown in FIG. 1 is used, and the protective paper 5 of the functional label 1 is peeled off to prepare the functional label 1 with the adhesive layer 4 exposed. Then, the functional label 1 is attached to the article 7 on which the information 8 to be concealed is written with the adhesive layer 4 so as to cover the information 8. As a result, the printing unit 3 with the temperature indicating ink which is colored at room temperature makes the information 8 concealed. Next, the printing portion 3 using the temperature indicating ink is heated or heated by means of a hot stamp or the like to make the printing portion 3 transparent, pass through the paper 2 and the adhesive layer 4, and then on the article 7. Can be made visible.

  In FIG. 4, the schematic explaining another usage method using the functional label of this invention is shown. The functional label 1 having the structure shown in FIG. 1 is used, and the protective paper 5 of the functional label 1 is peeled off to prepare the functional label 1 with the adhesive layer 4 exposed. Then, the functional label 1 is attached to the article 7 on which the information 8 to be concealed is written with the adhesive layer 4 so as to cover the information 8. As a result, the printing unit 3 and the label paper 2 with the temperature indicating ink that is colored at room temperature are in a state of concealing the information 8. However, in the case of FIG. 4, the printing unit 3 using the temperature ink conceals the information except the information 8 ′ (outer part) which is a part of the information 8, and the printing unit 3 using the temperature ink is not applied. The label sheets 2 at both ends conceal the information 8 ′ (outer part) which is a part of the information 8. Next, the printing portion 3 using the temperature indicating ink is heated or heated by means of a hot stamp or the like to make the printing portion 3 transparent, pass through the paper 2 and the adhesive layer 4, and then on the article 7. In FIG. 4, that is, in FIG. 4, it is possible to make visible the information of the part excluding the information 8 ′ and the information 8 ″ at both ends from the information 8. From this state, the functional label 1 is peeled off from the article 7. As a result, the information 8 ′ and the information 8 ″ that have been concealed until then can be made visible. In this case, the pressure-sensitive adhesive layer 4 of the functional label 1 uses a weak adhesive type so that the functional label can be peeled off after being attached to the article.

Hereafter, each requirement which comprises the function label of this invention is demonstrated in detail.
(Paper)
Examples of the paper 2 in the functional label of the present invention include natural pulp, synthetic pulp, and pulp paper made from a mixture thereof, and any of them can be used. For example, high-quality paper, art paper, coated paper, cast coated paper, thermal transfer paper, Kent paper, and the like are used. The thickness of the paper is preferably about 20 to 150 μm.

(Transparent part)
A transparent portion 6 is formed on the paper by printing a transparent ink. The clearing ink is applied to the paper by a printing means using a rubber relief plate, gravure plate or the like, and then impregnated by heating and drying, and removes unnecessary volatile components, and is fixed to the paper. At the same time, it is used to make the paper transparent. Therefore, unlike ordinary printing inks, no coloring material is used, and alicyclic saturated hydrocarbon resins, waxes, etc. that are effective for making paper transparent by impregnation and less yellowing are used. In order to make this a liquid suitable for coating and impregnation, it is preferable that the clearing ink is composed of a system to which a solvent is added.

  In addition, the constituents of the above-described clearing ink further include a drying oil, a semi-drying oil, a non-drying oil, etc. in order to adjust the surface properties such as the flexibility of the coated part and the surface strength and lubricity. It is more preferable to add fats and oils, fatty acids and the like. As the resin for such a transparent ink, alicyclic saturated hydrocarbons can be used, and among them, aromatic saturated hydrocarbon resins are preferable. These resins make paper transparent by impregnation and at the same time have good performance in yellowing resistance. As the wax, paraffin wax is preferable, and paraffin wax having a melting point of about 120 to 140 ° F. (Fahrenheit) is particularly preferable. Such a wax makes the paper transparent as in the case of the above resin, is excellent in yellowing resistance, further suppresses the adhesiveness of the resin, and imparts blocking resistance.

Further, the transparent ink may be one using an ultraviolet curable resin, and if the paper is impregnated into a paper to be transparent, the transparent ink is an osmotic drying type, an oxidation polymerization type, an ultraviolet curable type, or A composite type combining these types can be employed. The transparent part made of such a transparent ink can be formed with a thickness of about 1 to 50 g / m ^{2 in} a dry state by printing.

(Printing part with temperature ink)
In the functional label of the present invention, the printing portion 3 by the temperature indicating ink is formed on one surface of the paper having the transparent portion described above. The temperature indicating ink is colored at room temperature and becomes transparent by heating or heating. An ink that has a hue of red, yellow, blue, black or the like at a temperature of 15 to 25 ° C. and is transparent at a temperature higher than the normal temperature, that is, a temperature that does not exceed the ambient temperature, that is, the ambient temperature. , Temperature indicating ink.

  For example, a temperature-indicating ink is generally composed of a temperature-indicating microcapsule having a structure in which an electron-donating color dye, an electron-accepting color developer, and a polar organic compound are used as a core substance and this is coated with a wall film. This ink is blended in a typical ink vehicle and changes its color reversibly or irreversibly at a set critical temperature. The irreversible type temperature indicating ink changes its color when the temperature exceeds the critical temperature and becomes transparent, and then does not return to the original color even when the temperature becomes lower than the critical temperature and reaches room temperature. In this case, the color at normal temperature becomes transparent and a history of changes remains.

  The reversible type temperature indicating ink changes its color when the temperature exceeds the critical temperature, and then returns to the original color when the temperature becomes lower than the critical temperature and becomes room temperature. In this case, unlike the irreversible type, the color at room temperature becomes transparent and changes do not remain in the history, but only when heated or heated, it becomes transparent and when it reaches room temperature, the original color Since the information can be concealed, it can be prevented from being seen by an unspecified number of people. The temperature indicating ink used in the functional label of the present invention may be either the reversible type or the irreversible type described above. When the temperature indicating ink is heated or heated to make it transparent, the starting temperature for making it transparent is the critical temperature, and when the critical temperature is 33 to 37 ° C., a special heating device is used. The printing portion can be easily made transparent simply by rubbing the temperature-printing ink printing portion 3 with a finger. The printing portion with the temperature indicating ink is colored at room temperature and becomes transparent at the temperature of 33 to 37 ° C. More specifically, the surface temperature of the printing portion with the temperature indicating ink is reciprocated several times with a finger. By rubbing, it means that it reaches the body temperature value.

  In addition, when the critical temperature of the temperature indicating ink is 50 to 190 ° C., the surface temperature of the printing portion of the temperature indicating ink reaches the critical temperature by using a heating means such as a hot stamp or a thermal head. It makes the printing part of the ink transparent. The critical temperature at which the temperature indicating ink changes from a colored state to a transparent (colorless) state should be set as appropriate by selecting the materials that make up the temperature ink in consideration of the heat resistance of the paper. Can do. However, in the case of a functional label using temperature indicating ink whose critical temperature is close to body temperature, the storage temperature becomes higher than room temperature under storage conditions such as in direct sunlight or near a heater. Care must be taken not to exceed the temperature.

As a material constituting the temperature indicating ink, for example, a temperature indicating material such as a cholesteric liquid crystal, a spirane compound, or a metal salt compound is used as a temperature indicating pigment, and solid phase reaction, thermal decomposition, dehydration, electron transfer of electron donor acceptor, crystal Examples include those whose color changes using structural changes or the like. These constituent materials and materials necessary for making ink are added, and printing is performed in a desired pattern by a printing means using a rubber relief plate, a gravure plate, or the like, so that a printing portion using temperature indicating ink is formed. The printing portion using the temperature indicating ink can be formed in a dry state with a thickness of about 0.5 to 50 g / m ² .

(Adhesive layer)
The pressure-sensitive adhesive layer 4 used in the functional label of the present invention comprises an acrylic adhesive, a natural rubber adhesive, a synthetic rubber adhesive, an ethylene-vinyl acetate copolymer (EVA) adhesive, and a vinyl acetate adhesive. , Urethane adhesives, olefin adhesives, silicone adhesives, etc., as well as adding necessary materials to make ink, and printing means using rubber relief plates, gravure plates, etc. A pressure-sensitive adhesive layer is formed by printing in a pattern. The pressure-sensitive adhesive layer can be formed with a thickness of about 1 to 50 g / m ^{2 in} a dry state.

  The pressure-sensitive adhesive layer is used to attach a functional label to an article that contains information to be concealed, but it can be divided into a strong adhesion type and a weak adhesion type depending on the adhesive strength with the article. Any of them can be used. In order to distinguish the strength of the adhesive strength in the pressure-sensitive adhesive layer, for example, the thickness of the pressure-sensitive adhesive layer may be adjusted with a difference, or an adhesive strength adjusting agent that lowers the adhesive strength may be added and adjusted. Examples of the adhesive force adjusting agent include fine hard substances such as fine particles such as silica gel and corn starch. However, in the present invention, a functional label is affixed to the article, and the printed part is heated or heated by the temperature indicating ink, so that the printed part becomes transparent, and is described in the article positioned below through the transparent part of the paper. The pressure-sensitive adhesive layer used in the present invention has transparency so that the information can be visualized. Therefore, it is necessary to increase the transparency of the pressure-sensitive adhesive layer by reducing the addition rate of the adhesive strength adjusting agent with a particle size of several μm and suppressing the thickness of the pressure-sensitive adhesive layer.

  The above-mentioned strong adhesion type pressure-sensitive adhesive layer is difficult to peel off the functional label after attaching the functional label to the article with the pressure-sensitive adhesive layer. Torn. In addition, the weak adhesive type pressure-sensitive adhesive layer can be attached to the article with the pressure-sensitive adhesive layer, and then peeled off, and then the functional label can be attached to the article again with the pressure-sensitive adhesive layer. is there.

  Therefore, when a function label using a strong adhesive type pressure-sensitive adhesive layer is attached to an article on which information to be concealed is written, it is used for an application that is not intended to be peeled once attached. Moreover, in the functional label using the weak adhesive type pressure-sensitive adhesive layer, when pasting on an article on which information to be concealed is described, even if the functional label is pasted on the article once, the functional label is peeled off, Moreover, since it can affix, it can be used for the use etc. which can add the information described in an article | item.

(Protective paper)
Examples of the protective paper 5 used in the functional label of the present invention include a high-density base paper such as glassine paper, a clay coat paper, a base paper such as kraft paper or high-quality paper, or a kraft paper or high-quality paper. After applying a release agent composed of a solvent-type or solvent-free type silicone resin or fluororesin on polylamination paper, etc., laminated with synthetic resin such as polyethylene, etc. to a dry mass of about 0.05 to 3 g / m ² Those having a release agent layer formed by heat curing, electron beam or ultraviolet curing are appropriately used.

(Usage using functional labels)
The method of using the functional label according to the present invention uses the functional label described above, and peels off the protective paper on the article 7 on which the information 8 to be concealed is written so as to cover the information 8. From the state where the information is concealed at room temperature by applying a functional label with an agent layer, the printed part is made transparent by heating or heating the printed part with the temperature indicating ink, and the printed part is made transparent through the transparent part of the paper. The information described in the article located in can be visualized.

  As the article 7 to which the functional label is attached, for example, postcards, application forms (cards), application forms (cards), etc., information that is representative of personal information is described as information to be concealed. It is done. In practice, it is preferable that the article to be attached such as a postcard and the function label are connected to each other, and the function label is attached to the postcard at the time of use. In addition, by attaching the above function labels to various toys and touching them with your fingers (hands), you can visually recognize the hidden information and make it interesting to those who use the toys. It can also be used for entertainment purposes.

  In addition, as information 8 described on the surface of the article, an example of personal information is written as variable information by a no-impact printer such as an electrophotographic method or a thermal transfer recording method, for example, by the subject himself or herself. , Individual name, date of birth, married / unmarried, medical history, annual income, personal opinion, etc.

The features of the present invention will be described more specifically with reference to the following examples and comparative examples. However, the scope of the present invention is not limited to the examples. In the text, “part” or “%” is based on mass unless otherwise specified.
Example 1
15 parts of paraffin wax is added to 100 parts of aromatic saturated hydrocarbon resin on a paper which is a high quality paper having a basis weight of 64 g / m ² , a solvent is added to adjust the clearing ink, and the clearing ink is used. A predetermined pattern was printed by gravure printing to form a transparent portion. (See FIG. 1) The coating amount of the clearing ink was 32 g / m ² (during drying) corresponding to 50% by mass (during drying) with respect to the basis weight of the paper.

On one surface of the paper having the transparent portion, the temperature indicating ink which is red at normal temperature and transparent at a temperature of 80 ° C. is printed by gravure printing in an arrangement as shown in FIG. Formed. However, this temperature ink is an irreversible type and does not return to the original red color even when the temperature is lower than the above-mentioned critical temperature of 80 ° C. The printed portion with the temperature ink is 20 g / in dry state. It was formed with a thickness of m ² . Furthermore, on the surface opposite to the surface on which the printed portion of the temperature indicating ink of the paper is formed, by using an acrylic adhesive, gravure printing so as to have a thickness of 20 g / m ^{2 in} a dry state, A functional label of Example 1 was produced by forming a pressure-sensitive adhesive layer and laminating the following protective paper so as to cover the pressure-sensitive adhesive layer.

Protective paper is coated with a release agent made of a solvent-type silicone resin on a polyethylene surface of polylamination paper laminated with polyethylene synthetic resin on high-quality paper (45 g / m ² ) so that the dry mass becomes 2 g / m ^2. The dried one was used.

  The person who sent the envelope with the questionnaire postcard filled in the postcard, fills in the questionnaire's answer, and their personal information (name, date of birth, marital status, unmarried, etc.) In order to conceal the information of the questionnaire result and the personal information 8 by handwriting, the protective paper of the functional label is peeled off, and an adhesive layer is formed so as to cover the information so that the information shown in FIG. Pasted to be. Then, the concealed postcard was sent to a predetermined destination. As a result, the above information was sufficiently concealed at room temperature. The third party peeled off the functional label and tried to steal the hidden information, but the adhesive strength between the functional label and the article was high, and it was difficult to remove the functional label. And the printing part was heated with the heat roller so that the surface temperature of the printing part by temperature ink reached 80 degreeC. Then, the printing part became transparent, and the information described in the article located below could be made visible through the transparent part of the paper. A person who can visually recognize this information is the predetermined person who sent the postcard, and the information was correctly used for the intended use and processed.

  In the above example, the concealed information is easy to use because it does not take time and effort to peel off the label and view the information manually. In addition, the position of the printing part 3 with temperature indicating ink and the transparent part 6 of the paper 2 and the position of the postcard information 8 that is the article 7 are predetermined, and there is no problem with the method of using the above function label. There was no good handling.

(Example 2)
A transparent portion was formed in the same manner as in Example 1 on the paper used in Example 1 above. On one side of the paper with this transparent part, gravure printing is performed on the one side of the paper, which is brown at room temperature and transparent at 34 ° C, in the shape of the iris of the eye (the outer periphery excluding the small circle of the pupil). Thus, printing was performed to form a printing portion. However, this temperature ink is of a reversible type, and when the temperature becomes lower than the above-mentioned critical temperature of 34 ° C., it returns to the original brown color, and the printed portion with the temperature ink has a dry state of 20 g / m ² . Formed in thickness. Furthermore, on the surface opposite to the surface on which the printed portion of the temperature indicating ink of the paper is formed, by using an acrylic adhesive, gravure printing so as to have a thickness of 20 g / m ^{2 in} a dry state, A functional label of Example 2 was produced by forming a pressure-sensitive adhesive layer and laminating protective paper similar to that used in Example 1 so as to cover the pressure-sensitive adhesive layer.

  Two functional labels of Example 2 prepared as described above were prepared, and one functional label was attached to the left eye and the right eye of “stuffed animal” which is a toy. However, the pupil portion was printed in black on both eyes of the stuffed animal in advance, and the iris portion around the pupil was printed in blue. The stuffed toy with this functional label was brown in the iris of the eye, but the color of the iris around the pupil changed to blue as the finger touched and rubbed it several times It was something to do. And after stopping touching the eyes, the color of the iris part will return to brown, touching with this finger from this “brown” will be heated to “blue”, and from “blue” to room temperature It was fun and fun to play with repeatedly changing to “brown”.

It is the schematic which shows one Embodiment of the function label of this invention. It is the schematic which shows other embodiment of the function label of this invention. It is the schematic explaining the usage method using the functional label of this invention. It is the schematic explaining another usage method using the functional label of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Function label 2 Paper 3 Printed part by temperature ink 4 Adhesive layer 5 Protective paper 6 Transparent part 7 Article 8 Information 8 'Information 8 "Information

Claims (5)

  Printed with clearing ink, provided on one side of the paper with a transparent part formed with temperature ink that is colored at room temperature and transparent by heating or heating, and adheres to the other side of the paper A functional label provided with an adhesive layer and further provided with protective paper so as to cover the adhesive layer.   The functional label according to claim 1, wherein the transparent portion of the underlying paper can be seen through by making the printed portion with the temperature indicating ink transparent by heating or heating.   The functional label according to claim 1 or 2, wherein the printed portion with the temperature indicating ink is colored at room temperature and is transparent at a temperature of 33 to 37 ° C.   The functional label according to claim 1 or 2, wherein the printed portion with the temperature indicating ink is colored at room temperature and is transparent at a temperature of 50 to 90 ° C. Printed with clearing ink, provided on one side of the paper with the transparent part formed with temperature ink that is colored at room temperature and transparent by heating or heating, and adheres to the other side of the paper Use a functional label with a protective paper so as to cover the adhesive layer, and cover the information by peeling off the protective paper from the article on which the information to be concealed is written. In this way, the functional label is attached with the adhesive layer, and the printed portion is made transparent by heating or heating the printed portion with the temperature indicating ink from the state where the information is concealed at room temperature. A method of using a functional label, characterized in that information described in an article located below can be seen through a transparent part.

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