JP2007213461A - Ic tag label - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an IC tag label whose surface protection film uses biodegradable material so that it is less likely to pollute the environment. <P>SOLUTION: The IC tag label 1 has an IC chip 3 mounted on an antenna pattern 2 formed on the surface of a base film 11. The side of the base film 11 on which the antenna pattern 2 is formed is covered with the surface protection film 4a via an adhesive layer 5a and the side of the base film opposite to the antenna pattern 2 is laminated with an adhesive layer 9. The surface protection film 4a is made from biodegradable material and/or biological material. An ink reception layer 6 made from biodegradable material and/or biological material and a filler may be provided on the outer surface of the surface protection film 4a and ink-jet printing 10a may be provided on the ink reception layer 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an IC tag label. Specifically, an IC tag label using a biodegradable material and / or a biological material for a plastic film constituting the IC tag label, and a biodegradable material and / or a biological material on the surface of the IC tag label are also provided. The present invention relates to an IC tag label having an ink receiving layer using a material and performing ink jet printing on the receiving layer.

  In recent years, IC tag labels have been used in various directions. Many of IC tag labels use a polyethylene terephthalate (PET) film as a base film or a surface protective film. This IC tag label is used by being attached to individual cardboard or packaging material, or directly attached to a product. When these materials are subjected to a recycling process or are disposed of in nature, the paper material dissolves in water, but the PET film itself does not dissolve, resulting in problems of resource regeneration and environmental damage.

In addition, when an IC tag label becomes indispensable for a product or its packaging, printing that enhances the appearance of the product is required. In this case, inkjet printing is preferably used as inexpensive and individually compatible printing. Inkjet printing is highly useful because it enables high-speed printing and color printing. When ink-jet printing is performed on a plastic film surface, an ink receiving layer is usually formed, and as the ink receiving layer, a material mainly composed of polyurethane, polyacryl or the like is conventionally used.
However, such ink receiving layer materials often generate high amounts of heat during incineration and damage the incinerator or generate toxic gases.

As an example of using a biodegradable plastic for a card, there is Patent Document 1, and as a prior art using a biodegradable plastic for a non-contact IC card, there is Patent Document 2. However, it has not been proposed to use a biodegradable material for the IC tag label.
On the other hand, Patent Document 3 proposes an ink jet recording medium in which both the base material and the binder of the ink receiving layer are made of a biodegradable resin, and recommends polyvinyl alcohol and / or a cellulose derivative as the binder. . However, it is still difficult to make these materials have printability equivalent to that of a conventional ink receiving layer.

JP-A-11-334263 JP 2002-99885 A JP 2002-67479 A

  Therefore, the present inventor improved the environmental resistance by using a biodegradable material and / or a biological material for the IC tag label, and also accepted the ink on the surface of the IC tag label in consideration of the environment. The present invention has been completed by studying ink jet printing by providing a layer.

  According to a first aspect of the present invention for solving the above problems, an IC chip is mounted on an antenna pattern formed on a base film surface, and the antenna pattern surface of the base film is covered with a surface protection film via an adhesive layer. An IC tag label in which an adhesive layer is laminated on a base film surface opposite to a pattern, wherein the surface protective film is made of a biodegradable material and / or a biological material. .

  According to a second aspect of the present invention for solving the above problem, an IC chip is mounted on an antenna pattern formed on a base film surface, and the antenna pattern surface of the base film is covered with a surface protective film via an adhesive layer. An IC tag label in which an adhesive layer is laminated on a base film surface opposite to a pattern, wherein the base film and the surface protective film are made of a biodegradable material and / or a biological material. ,It is in.

  In the first and second aspects of the present invention, the surface of the surface protection film has a second surface protection film made of a biodegradable material and / or a biological material, and the second surface protection. An ink receiving layer composed of a biodegradable material and / or a biological material and a filler is provided on the outer surface of the film, and ink jet printing is performed on the ink receiving layer. In this case, a surface protective film with printing can be added to the ready-made IC tag connecting sheet, and printing can be lost in the environment because the ink receiving layer is biodegradable.

  According to a third aspect of the present invention for solving the above problems, an IC chip is mounted on an antenna pattern formed on a base film surface, and the antenna pattern surface of the base film is covered with a surface protective film via an adhesive layer. In an IC tag label in which an adhesive layer is laminated on the surface of the base film opposite to the pattern, the surface protective film is made of a biodegradable material and / or a biological material, and biodegraded on the outer surface of the surface protective film. An IC tag label having an ink receiving layer composed of a material having a property and / or a bio-derived material and a filler, and inkjet printing is performed on the ink receiving layer.

  According to a fourth aspect of the present invention for solving the above problem, an IC chip is mounted on an antenna pattern formed on a base film surface, and the antenna pattern surface of the base film is covered with a surface protective film via an adhesive layer. In an IC tag label in which an adhesive layer is laminated on the surface of the base film opposite to the pattern, the base film and the surface protective film are made of a biodegradable material and / or a biological material, and the outer surface of the surface protective film The IC tag label has an ink receiving layer comprising a biodegradable material and / or a biological material and a filler, and the ink receiving layer is inkjet printed.

  Further, any one of offset printing, letterpress printing, gravure printing, and silk screen printing may be performed in combination with inkjet printing, and in this case, a variety of printing is possible.

According to the present invention, when the IC tag label is disposed of by incineration, it is possible to reduce the risk of damaging the incinerator or generating harmful gases, and to save petroleum resources. There is an effect that the IC tag label can be considered.
The IC tag label according to claim 3 can be used for a specific purpose by laminating a surface protection film with an ink receiving layer on a ready-made IC tag connecting sheet.
When the ink receiving layer used in the inventions of claims 3, 4, 5, 6, and 7 is disposed of in landfills, the ink receiving layer can be decomposed by microorganisms in the soil and the printing is quickly lost. it can. In addition, when incinerated, the incinerator can be less damaged and harmful gases can be generated.

The IC tag label of the present invention will be described below with reference to the drawings.
FIG. 1 is a plan view of an IC tag label, FIG. 2 is a sectional view showing a first embodiment of the IC tag label, FIG. 3 is a sectional view showing the second embodiment, and FIG. 4 is a sectional view showing the third embodiment. FIG. 5 is a sectional view showing the fourth embodiment, FIG. 6 is a sectional view showing the fifth embodiment, FIG. 7 is a sectional view showing the sixth embodiment, and FIG. FIG. 3 is a diagram showing an embodiment in which an anchor layer is used for an ink receiving layer.

As shown in FIG. 1, the IC tag label 1 of the present invention has an antenna pattern 2 formed on the surface of a base film 11, and IC chips 3 are mounted on both ends 2 a and 2 b of the antenna pattern 2. Since the surface of the base film 11 is covered with a surface protective film, the antenna pattern 2 or the like cannot actually be visually recognized, but shows a transparent state.
The IC chip 3 has a non-contact communication function, a processing function, a storage function, and an input / output function. The antenna pattern 2 plays a role of receiving and transmitting electromagnetic waves and receiving supply of necessary power. The antenna pattern 2 includes a pattern obtained by etching a metal foil laminated on the base film 11 and a pattern printed with conductive ink.
When the IC tag label 1 is used, one unit is used. FIG. 1 shows a state in which the die-cut IC tag labels 1 are connected to the release paper 8 in a line. In FIG. 1, a planar coil shape is shown as the antenna pattern 2, but a two-piece patch antenna or dipole antenna may be used.
The above planar form is not different from a normal non-contact IC tag label. In addition, since it is the same also in the following each embodiment, only a cross-sectional form is shown and a plan view is omitted.

FIG. 2 is a cross-sectional view showing a first embodiment (Claim 1) of an IC tag label. FIG. 1 shows a cross section crossing the IC chip 3. The same applies to the following drawings up to FIG.
As shown in FIG. 2, the antenna pattern 2 and the IC chip 3 on the surface of the base film 11 are covered with a surface protective film 4a via an adhesive layer 5a. As the surface protective film 4a, a PET film is usually used, but the present invention is characterized by using a biodegradable material and / or a biological material. In the case of the first embodiment, the base film 11 may be a normal plastic film that is not biodegradable, such as a PET film.
In FIG. 2, there is a gap between the antenna pattern 2 and the adhesive layer 5a, but the antenna pattern 2 and the adhesive layer 5a are actually in close contact. The non-contact IC tag label 1 has an adhesive layer 9 on the surface of the base film 11 on the adherend side. The pressure-sensitive adhesive layer 9 is protected by a release paper 8 having a release surface, and the release paper 8 is removed before use.

  FIG. 3 is a sectional view showing the second embodiment (claim 2). As shown in FIG. 3, the antenna pattern 2 on the surface of the base film 11 and the surface of the IC chip 3 are covered with a surface protective film 4a through an adhesive layer 5a. In the case of 2nd Embodiment, both the base film 11 and the surface protection film 4a have the characteristics which consist of a biodegradable material and / or a biological material. Other configurations are the same as those of the first embodiment.

  FIG. 4 is a sectional view showing the third embodiment (Claim 3). As shown in FIG. 4, the antenna pattern 2 and the IC chip 3 surface on the surface of the base film 11 are covered with the surface protective film 4a via the adhesive layer 5a. In the case of the third embodiment, the surface of the surface protection film 4a of the IC tag label 1 of the first or second embodiment is made of a biodegradable material and / or a biological material via an adhesive layer 5b. The second surface protection film 4b is further laminated. The surface protective film 4a inside the second surface protective film 4b is also made of a biodegradable material and / or a biological material, but the base film 11 is a normal plastic film when the inside is the first embodiment. In the case of the second embodiment, it is made of a biodegradable material and / or a biological material.

Thus, when laminating the second surface protective film 4b, the printed second surface protective film 4b is laminated on the IC tag label 1 of the first or second embodiment once completed as an IC tag connecting sheet. Thus, convenience that can be used for a specific purpose is obtained. However, you may perform the inkjet printing 10a before lamination | stacking or after lamination | stacking.
A further feature of the third embodiment is that the outer surface of the second surface protective film 4b has an ink receiving layer 6 made of a biodegradable material and / or a biological material and a filler. That is, inkjet printing 10a is performed. The ink receiving layer 6 need not be provided on the entire outer surface of the surface protective film 4b, and may be partial. This usage method can be used by laminating the second surface protective film 5b which has been subjected to inkjet printing 10a in a separate process on the IC tag label of the first or second embodiment composed of the unprinted surface protective film 4a. Also means. As in the sixth aspect, any one of offset printing, letterpress printing, gravure printing, and silk screen printing other than the inkjet printing 10a may be performed in advance.

FIG. 5 is a sectional view showing the fourth embodiment (Claim 4). The configuration between the surface protective film 4a and the base film 11, the adhesive layer 9 and the release paper 8 are the same as those in the first embodiment.
A feature of the fourth embodiment is that the outer surface of the surface protective film 4a has an ink receiving layer 6 made of a biodegradable material and / or a biological material and a filler, and the ink receiving layer 6 is provided with an ink jet printing 10a. There is in being.

FIG. 6 is a sectional view showing the fifth embodiment (Claim 5). The configuration between the surface protective film 4a and the base film 11, the adhesive layer 9 and the release paper 8 are the same as those in the second embodiment.
A feature of the fifth embodiment is that the outer surface of the surface protective film 4a has an ink receiving layer 6 made of a biodegradable material and / or a bio-derived material and a filler, and an ink jet printing 10a is formed on the ink receiving layer 6. There is in being.

FIG. 7 is a sectional view showing the sixth embodiment (Claim 6). In this embodiment, in the IC tag label 1 of the third, fourth, and fifth embodiments, the ink receiving layer 6 or a portion other than the ink receiving layer 6 is used together with the inkjet printing 10a, and the normal printing 10b, that is, offset printing, letterpress It is a form printed using any one of printing, gravure printing and silk screen printing. FIG. 7 illustrates a state where the inkjet tag 10a and the normal print 10b are applied to the IC tag label 1 of the second embodiment, but the first embodiment may be used.
In this way, by performing multiple types of printing, information that is common to all IC tag labels is applied in advance by normal printing 10b, and the convenience that ink jet printing 10a can be obtained by adding information specific to each IC tag label is obtained. It is done.

As shown in FIG. 8, the IC tag label 1 of the present invention can be provided with an anchor layer 7 on the surface protective film 4, and the ink receiving layer 6 can be formed on the anchor layer 7. As will be described in detail later, the ink receiving layer 6 is a layer containing a biodegradable material and / or a bio-derived material and a filler. It also exhibits good printability for inks such as printing inks for offset printing, letterpress printing, gravure printing and silk screen printing. The anchor layer 7 is not essential, but when the surface protective film 4 is a biodegradable material, the transfer property of the printing ink can be improved by providing the anchor layer 7.
The anchor layer 7 and the ink receiving layer 6 do not have to be provided on the entire outer surface of the surface protective film 4 and may be partial.

Next, a method for manufacturing the IC tag label 1 of the present invention will be briefly described.
The IC tag label of Embodiment 1 or Embodiment 2 is that a part of a base film or a surface protection film is changed from a conventional ordinary plastic film to a biodegradable material and / or a bio-derived material. The manufacturing method can be used as it is.
The IC tag label of Embodiment 3 is obtained by adding the second surface protective film 4b with the ink receiving layer 6 to the IC tag label of Embodiment 1 or Embodiment 2. After processing and printing the ink receiving layer 6 on the surface protective film 4b, it may be laminated on the IC tag label 1 of Embodiment 1 or Embodiment 2. If only inkjet printing is used, it is applied to each IC tag label after lamination. Can be printed. However, normal printing such as offset printing needs to be performed before laminating the IC tag label 1.
The IC tag label 1 of Embodiment 4 or Embodiment 5 adds the ink receiving layer 6 and printing to the IC tag label 1 of Embodiment 1 or Embodiment 2, but the processing of the ink receiving layer 6 to the surface protective film 4a. Ordinary printing, such as offset printing, must be done before laminating to the inlet base film. If only inkjet printing is used, it is the same as described above that printing can be performed on individual IC tag labels after lamination.

  Next, various constituent materials used for the IC tag label 1 of the present invention will be described. First, the ink receiving layer will be described.

(Ink receiving layer)
The ink receiving layer contains a biodegradable material and / or a biological material and a filler. An ink receiving layer used in a general ink jet recording medium is made of a non-biodegradable material, particularly a petroleum-derived material, from the viewpoint of film forming property and strength.
However, in this case, when the unnecessary ink-jet printed material is disposed of, it may cause soil contamination, generation of toxic gas, or damage to the incinerator. In addition, since oil is not a recycled resource, there is a problem of depleting resources.

  On the other hand, in the present invention, the ink receiving layer 6 contains a biodegradable material and / or a biological material. Therefore, when the ink receiving layer is disposed of, the ink receiving layer 6 can be decomposed by microorganisms in the soil. Further, since the amount of heat generated at the time of incineration can be made smaller than that of a non-biodegradable material, generation of toxic gas or damage to the incinerator can be prevented. In addition, since the bio-derived material is a renewable raw material, there can be no problem such as resource depletion, leading to saving of petroleum resources.

  Here, in the present invention, the biodegradable material is a biodegradable material whose biodegradability test (JIS K6955, JIS K6951 and JIS K6953) consists of only a material having biodegradability of 60% or more. It will be said that it shows. In addition, the biological material refers to a material generated from a plant such as corn or a material generated using a material generated by a microorganism, for example, a material itself generated from a plant or a living organism. There is no necessity, and these materials include, for example, those obtained by polymerizing or bonding with other materials.

  The ink receiving layer is not particularly limited as long as it contains the above-mentioned materials and has properties equivalent to those of conventionally used ink receiving layers, specifically, strength, film-forming property, and printability. It may be composed of a biodegradable material and / or a biological material and a filler, and is necessary in addition to a biodegradable material and / or a biological material and a filler. Depending on the above, other materials such as various additives may be contained.

  Here, for the ink receiving layer used in the present invention, the biodegradable and biological material is preferably used. This is because the ink receiving layer does not cause environmental pollution and the like, can save petroleum resources, and can be more favorable for the environment. Examples of such materials include aliphatic polyester resins such as polylactic acid and polybutylene succinate as described above, microorganism-produced polyester resins such as polyhydroxybutyrate and polyhydroxyvalerate, and poly (γ- Polyamino acid resins such as glutamic acid), polysaccharides such as cellulose acetate, starch, chitin, chitosan, mannan, and pullulan, starch, and cellulose resins. In the present invention, among these materials, aliphatic polyester resins are suitable as an ink receiving layer because of their high film-forming properties and relatively high coating strength. In the present invention, by changing the polarity of the resin, the printability can be adjusted in accordance with the ink received by the ink receiving layer.

  In the present invention, it is particularly preferable to use polylactic acid or polybutylene succinate among the above. This is because the material has a relatively high strength and is excellent in terms of mechanical strength and the like, and can have the same performance as a conventional ink receiving layer.

  Examples of the aliphatic polyester include polycaprolactone, polybutyrolactone, polyvalerolactone, polypropiolactone and the like obtained by ring-opening polymerization of cyclic lactones, and polylactic acid and polyglycolic acid obtained by ring-opening polymerization of lactide and glycolide. . In addition, polyethylene oxalate, polyethylene succinate, polyethylene adipate, polybutylene oxalate, polybutylene succinate, polybutylene adipate, polybutylene sebacate, polyhexahexene obtained by copolymerizing aliphatic dicarboxylic acids and aliphatic diols. Examples include methylene sebacate, polybutylene succinate adipate, and copolymers thereof. Examples of the microbial-produced aliphatic polyester include polyhydroxybutyrate, polyhydroxyvalylate, polyhydroxybutyratevalerate, and the like, such as 3-hydroxyhexanoate and 3-hydroxyoctanoate. Hydroxyalkanoates may be copolymerized. Moreover, you may copolymerize aliphatic polyester mentioned above, aromatic polyester, aliphatic polycarbonate, aliphatic polyether, etc. as needed. The aliphatic polyester preferably has a weight average molecular weight in the range of 10,000 to 300,000, and more preferably in the range of 30,000 to 200,000. Moreover, it is preferable that the carbon number contained in the repeating unit (monomer unit) of the aliphatic polyester used is in the range of 2 to 20, particularly in the range of 2 to 12.

In the present invention, the above-described materials can be used alone or in combination of two or more. In addition, when the material having the biodegradability is low, for example, when the strength or film forming property is low, the material having the biodegradability and the biodegradation used for the ink receiving layer of a general ink jet recording medium, etc. You may mix and use resin etc. which do not have property. Examples of the material that can be used by mixing with the biodegradable material include polyacryl, polyester, polyurethane, and polyolefin.
In this case, the resin having no biodegradability is preferably contained in the range of less than 50% by weight, particularly less than 30% by weight, based on the entire resin used in the receiving layer. This is because by setting the content of the material having no biodegradability within the above range, the object of the present invention can be prevented.

  On the other hand, biological materials used in the present invention include biological resins such as polylactic acid, polybutylene succinate, polyhydroxybutyrate, polyhydroxyvalylate and other polyester resins, polyamino acid resins, and cellulose. Acetate, hydroxyethyl cellulose, hydroxypropyl cellulose, starch, chitin, chitosan, mannan, etc., polysaccharides / starch / cellulosic resins, soy protein, or cross-linked products of these resins, and more generally these resins It can be combined with a non-living resin used. In the present invention, it is preferable to use a polyester-based resin or a derivative thereof among the above from the viewpoint of film forming property and coating film strength. In addition, when mixed with the non-biological resin, the non-biological resin is contained in the entire resin used in the ink receiving layer in a range of less than 50% by weight, particularly less than 30% by weight. It is preferable. This is because, by setting the content of materials other than the biological material within the above range, the object of the present invention can be prevented.

Further, the filler used in the ink receiving layer may be an organic filler or an inorganic filler. Examples of the organic filler include polyethylene, polystyrene, and polyacrylate. In the present invention, it is preferable to use an inorganic filler from the viewpoint of ink absorptivity. Examples of such inorganic filler include silica, alumina, aluminum silicate, magnesium silicate, calcium silicate, basic magnesium carbonate, and kaolin. , Clay, talc, calcium carbonate, titanium oxide, zinc oxide and the like. Of these, silica and alumina are particularly preferred because of their high ink absorbability. As the silica, amorphous silica is usually used.
Moreover, the shape of the said filler in this invention is not specifically limited, For example, spherical, flat shape, plate shape, fibrous filler, etc. can be used.

  In the present invention, the filler is within the range of 0.1 to 2 when the content (% by weight) of the biodegradable material and / or biological material in the ink receiving layer is 1. It is preferably contained in the range of 0.5 to 1.5, particularly in the range of 0.5 to 0.99. It is because excellent ink receptivity can be exhibited by being contained in such a range.

  In addition to the above materials contained in the ink receiving layer used in the present invention, cationic polymers for improving the printability of the ink receiving layer, anti-blocking agents, antioxidants and ultraviolet absorbers are included. In addition, various additives such as antistatic agents, dispersants, lubricants, antifoaming agents, plasticizers, crosslinking agents, various modified oils with high hydrophilicity, etc. may be used within a range that does not interfere with the purpose of the present invention. it can.

(Surface protection film)
Next, base materials such as the surface protective films 4a and 4b used for the IC tag label of the present invention will be described. The film used for the IC tag label of the present invention preferably has a material capable of forming the ink receiving layer and has a biodegradable material and / or a biological material. This is because the entire IC tag label can be made environmentally friendly.

  Here, as the material having biodegradability, the material having biodegradability described in the section of the ink receiving layer described above can be used. Moreover, as a biological material, it can be set as the biological material other than the paper and the material derived from paper used conventionally.

  Specific examples of such a film include a film using a biodegradable material and / or a biological plastic. Examples of the biodegradable material and / or biological plastic film include aliphatic polyester resins such as polylactic acid and polybutylene succinate, and microorganism-produced polyester resins such as polyhydroxybutyrate and polyhydroxyvalerate. And polyamino acid resins such as poly (γ-glutamic acid), polysaccharides such as cellulose acetate, starch, chitin, chitosan, mannan and pullulan, starch and cellulose resins. In the present invention, one or a combination of two or more of these can be used. Further, it may be formed by mixing these resins.

  In the present invention, among these, a film containing polylactic acid, polybutylene succinate or polyhydroxyvalerate is particularly preferable. This is because the material has a relatively high strength and the IC tag label can have the same characteristics as those of the conventional IC tag label.

Moreover, the said film may contain various additives, modifiers, etc., such as a plasticizer, a lubrication agent, an inorganic filler, an organic filler, a pigment, and an ultraviolet absorber suitably as needed. The base material may be one that has been subjected to a treatment such as a corona discharge treatment in order to improve the adhesion to the ink receiving layer 6. In the above, the thickness of the surface protective film 4 is usually 10 μm to 200 μm, preferably 15 μm to 100 μm.
In addition, although the above is described about the surface protection film 4, in the case where the base film 11 is a biodegradable material and / or a biological material (Claims 2 and 5), the same applies. The material will be used. The thickness of the base film 11 is 10 μm to 200 μm, preferably 15 μm to 100 μm.

(Anchor layer)
In order to stabilize the adhesion of the ink receiving layer 6 to the surface protective film 4, a coating liquid composed of polylactic acid can be applied before the ink receiving layer 6 is applied. The thickness of the anchor layer 6 is about 0.1 to 3 μm.

(Printing inks)
a. Inkjet ink In general, water-soluble or water-dispersible organic resins are used for inkjet ink. Examples of the resin include water-soluble acrylic resin, polyester resin, polyether resin, cellulose resin, polyamide resin, and polyvinyl alcohol resin. Natural polymers may also be used. Specific examples thereof include proteins such as gelatin, casein and albumin, and natural rubbers such as gum arabic.

b. Other general printing inks Ink for offset printing, letterpress printing, gravure printing, and silk screen printing is often used, and is preferably an ultraviolet curable ink from the viewpoint of printing durability.

  In the present invention, it is preferable that the ink or the like used for such printing has a biodegradable material and / or a biological material. This is because the printed matter as a whole can be environmentally friendly. Since the biodegradable material and / or the biological material can be the same as those described above, detailed description thereof is omitted here.

(Base film)
When the base film 11 is a plastic film (claims 1 and 4), a wide variety of films can be used, and the following single films or composite films thereof can be used.
Polyethylene terephthalate (PET), PET-G (terephthalic acid-cyclohexanedimethanol-ethylene glycol copolymer), polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, polycarbonate, polyamide, polyimide, cellulose diacetate, cellulose triacetate, Polystyrene, ABS, polyacrylate, polypropylene, polyethylene, polyurethane, and the like.

(Adhesive, adhesive)
In the present specification, the term “adhesive” refers to various types such as a solvent type, a polymerization type, an ultraviolet curable type, an emulsion type, and a hot melt type, and includes a so-called adhesive type. In either case, the purpose can be achieved by bonding the two materials.
Further, in the present specification, the term “adhesive” refers to an adhesive that keeps an intermediate tack state indefinitely without a significant increase in viscosity.
Various resin compositions such as natural rubber, nitrile rubber, epoxy resin, vinyl acetate emulsion, acrylic, acrylate copolymer, polyvinyl alcohol, phenol resin, etc. Material can be used.

  The following examples illustrate the present invention more specifically.

(Manufacture of IC tag labels)
As a base film 11 of an IC tag, a substrate obtained by dry laminating a 15 μm thick aluminum foil on a transparent biaxially stretched PET film having a thickness of 100 μm is used. After printing an antenna pattern using a printing resist on this, etching is performed. Thus, the base film 11 having the antenna pattern 2 as shown in FIG. One antenna pattern 2 has an outer shape of approximately 45 mm × 76 mm.

  The inlet base film 11 was completed by attaching the IC chip 3 having a planar size of 1.0 mm square and a thickness of 150 μm to the antenna pattern both ends 2a and 2b of the base film 11 under heat and pressure. A process of conducting one end of the antenna pattern 2 through the back surface of the inlet base film 11 to the end 2a of the antenna pattern 2 was also performed.

  A polylactic acid sheet (Ecology SW, 100 μm thickness, manufactured by Mitsubishi Plastics, Inc.) is used as the surface protective film 4a, and is laminated on the surface of the inlet base film 11 via the polyester hot melt adhesive 5a and hot pressed. Laminated. Thereby, the IC tag connecting sheet was completed. Next, a process of laminating the release paper 8 on the back surface of the inlet base film 11 via the adhesive layer 9 having a thickness of 20 μm was performed. Finally, the IC tag label 1 shown in FIG. 2 was completed by punching out so that the size of one unit of the IC tag label 1 would be 54 mm × 86 mm. This embodiment corresponds to the IC tag label 1 of claim 1.

(Manufacture of IC tag labels)
As a base film 11 for an IC tag, a base material obtained by dry laminating a 15 μm thick aluminum foil on a polylactic acid sheet (Ecology SW, 100 μm thickness, manufactured by Mitsubishi Plastics Co., Ltd.) is used. After printing, etching was performed to obtain a base film 11 having the antenna pattern 2 as shown in FIG. One antenna pattern 2 has an outer shape of approximately 45 mm × 76 mm.

  The inlet base film 11 was completed by attaching the IC chip 3 having a planar size of 1.0 mm square and a thickness of 150 μm to the antenna pattern both ends 2a and 2b of the base film 11 under heat and pressure. A process of conducting one end of the antenna pattern 2 through the back surface of the inlet base film 11 to the end 2a of the antenna pattern 2 was also performed.

  A polylactic acid sheet (Ecology SW, 100 μm thickness, manufactured by Mitsubishi Plastics, Inc.) is used as the surface protective film 4a, and is laminated on the surface of the inlet base film 11 via the polyester hot melt adhesive 5a and hot pressed. Laminated. Thereby, the IC tag connecting sheet was completed. Next, a process of laminating the release paper 8 on the back surface of the inlet base film 11 via the adhesive layer 9 having a thickness of 20 μm was performed. Finally, punching was performed so that the size of one unit of the IC tag label 1 was 54 mm × 86 mm, and the connecting body of the IC tag label 1 shown in FIG. 3 was completed. This embodiment corresponds to the IC tag label 1 of claim 2.

(Preparation of surface protection film)
A polylactic acid sheet (Ecology SW, 100 μm thickness, manufactured by Mitsubishi Plastics, Inc.) is used as the surface protective film 4, and a polylactic acid based coating liquid (Vylo Ecole TYB-280 manufactured by Toyobo Co., Ltd.) is gravure on one side of the substrate. After applying by printing, it was dried at 100 ° C. to form an anchor layer 7. Subsequently, an ink receiving layer-forming composition having the following composition was applied onto the anchor layer 7 by gravure printing, and then dried at 100 ° C. to form an ink receiving layer 6.
<Composition of composition for forming ink receiving layer>
Polylactic acid emulsion (Randy PL, manufactured by Miyoshi Oil & Fat Co., Ltd.) 55 parts by weight Silica filler (Mizukasil, manufactured by Mizusawa Chemical Co., Ltd.) 45 parts by weight

In the above, “Randy PL” is a biodegradable resin emulsion having excellent film forming characteristics in a low temperature region (particularly at room temperature).
Thus, as shown in FIG. 8, the surface protective film 4, the anchor layer 7 formed on the surface protective film 4, and the ink receiving layer 6 formed on the surface of the anchor layer 7 are provided. The surface protective film 4 was completed. The thicknesses of the anchor layer 7 and the ink receiving layer 6 were in the range of 1 μm to 3 μm.

  Inkjet printing 10a was performed on the ink receiving layer 6 of the surface protective film 4 using a four-color inkjet printer (“PX7000” manufactured by Seiko Epson Corporation). Ink jet printing ink was a pigment type exclusive ink manufactured by Seiko Epson Corporation.

(Manufacture of IC tag labels)
With respect to the surface protective film 4a surface of the IC tag connecting sheet manufactured in Example 1, the surface protective film 4 prepared by printing as described above is used as the second surface protective film 4b, and the inkjet printing 10a surface is used as the outer surface. It laminated | stacked on the surface protective film 4a surface through the polyester-type hot-melt-adhesive 5b, and it laminated by hot-pressing. Next, a process of laminating the release paper 8 on the back surface of the inlet base film 11 with a pressure-sensitive adhesive layer 9 having a thickness of 20 μm was performed. Finally, the IC tag label 1 shown in FIG. 4 was completed by punching out so that the size of one unit of the IC tag label 1 would be 54 mm × 86 mm.
This example corresponds to one embodiment of the IC tag label 1 of claim 3.

(Preparation of surface protection film)
A polylactic acid sheet (Ecology SW, 100 μm thickness, manufactured by Mitsubishi Plastics, Inc.) is used as the surface protective film 4, and a polylactic acid based coating liquid (Vylo Ecole TYB-280 manufactured by Toyobo Co., Ltd.) is gravure on one side of the substrate. After applying by printing, it was dried at 100 ° C. to form an anchor layer 7. Subsequently, an ink receiving layer-forming composition having the following composition was applied onto the anchor layer 7 by gravure printing, and then dried at 100 ° C. to form an ink receiving layer 6.
<Composition of composition for forming ink receiving layer>
Polylactic acid emulsion (Randy PL, manufactured by Miyoshi Oil & Fat Co., Ltd.) 55 parts by weight Silica filler (Mizukasil, manufactured by Mizusawa Chemical Co., Ltd.) 45 parts by weight

In the above, “Randy PL” is a biodegradable resin emulsion having excellent film forming characteristics in a low temperature region (particularly at room temperature).
Thus, as shown in FIG. 8, the surface protective film 4, the anchor layer 7 formed on the surface protective film 4, and the ink receiving layer 6 formed on the surface of the anchor layer 7 are provided. The surface protective film 4 was completed. The thicknesses of the anchor layer 7 and the ink receiving layer 6 were in the range of 1 μm to 3 μm.

  Inkjet printing 10a was performed on the ink receiving layer 6 of the surface protective film 4 using a four-color inkjet printer (“PX7000” manufactured by Seiko Epson Corporation). Ink jet printing ink was a pigment type exclusive ink manufactured by Seiko Epson Corporation.

(Manufacture of IC tag labels)
An inlet base film 11 was completed under the same conditions as in Example 1. On the inlet base film 11, the surface protective film 4 prepared by printing as described above is used as the first surface protective film 4a, and the ink jet printing 10a surface is the outer surface, and is laminated via the polyester hot melt adhesive 5a. Then, it was hot-pressed and laminated. Next, a process of laminating the release paper 8 on the back surface of the inlet base film 11 with a pressure-sensitive adhesive layer 9 having a thickness of 20 μm was performed. Finally, punching was performed so that the size of one unit of the IC tag label 1 was 54 mm × 86 mm, and the connecting body of the IC tag label 1 shown in FIG. 5 was completed.
This embodiment corresponds to the IC tag label 1 of claim 4.

(Preparation of surface protection film)
Except that the composition for forming an ink-receiving layer having the following composition was used, coating was performed under the same conditions as in Example 4, and the surface protective film 4 and the surface protective film 4 as shown in FIG. The surface protective film 4 having the formed anchor layer 7 and the ink receiving layer 6 formed on the surface of the anchor layer 7 was completed. The thicknesses of the anchor layer 7 and the ink receiving layer 6 were in the range of 1 μm to 3 μm.
<Composition of composition for forming ink receiving layer>
Polybutylene succinate emulsion (AQ-1, manufactured by Aika Industry Co., Ltd.)
40 parts by weight Silica filler (Mizukasil, manufactured by Mizusawa Chemical Co., Ltd.) 60 parts by weight In the above, “AQ-1” is a biodegradable resin emulsion having low-temperature adhesive properties.

  The ink receiving layer 6 of the surface protective film 4 was subjected to inkjet printing 10a and color printing 10b by offset printing under the same conditions as in Example 1.

(Manufacture of IC tag labels)
An inlet base film 11 was completed under the same conditions as in Example 2. With respect to the inlet base film 11, the surface protection film 4 prepared by printing as described above is used as the first surface protection film 4a, and the ink jet printing 10a and the offset printing 10b are provided on the outer surfaces, and the polyester-based hot melt adhesive 5a. And laminated by hot pressing. Next, a process of laminating the release paper 8 on the back surface of the inlet base film 11 with a pressure-sensitive adhesive layer 9 having a thickness of 20 μm was performed.
Finally, punching was performed so that the size of one unit of the IC tag label 1 was 54 mm × 86 mm, and the connecting body of the IC tag label 1 shown in FIG. 5 was completed.
Although the present embodiment includes color printing 10b by offset printing, the basic form corresponds to the IC tag label 1 of claim 5.

[Comparative example]
After applying a transparent biaxially stretched PET film having a thickness of 100 μm as the surface protective film 4 and applying an acrylic polymer composition (NS-620X, manufactured by Takamatsu Yushi Co., Ltd.) as a composition for forming an ink receiving layer by gravure printing, The surface protective film 4 which consists of a base material and the ink receiving layer 6 was obtained by drying at 100 degreeC. The ink receiving layer 6 had a thickness of 1 μm to 3 μm. Ink jet printing 10a was performed on the ink receiving layer 6 of the surface protective film 4 under the same conditions as in Example 4. However, the anchor layer is not formed.

(Manufacture of IC tag labels)
An inlet base film 11 was completed under the same conditions as in Example 1. On the inlet base film 11, the surface protective film 4 prepared by printing as described above is used as the first surface protective film 4 a, and the inkjet printing 10 a surface is the outer surface, and is laminated via the polyester-based hot melt adhesive 5 a. Then, it was hot pressed and laminated. Next, a process of laminating the release paper 8 on the back surface of the inlet base film 11 with a pressure-sensitive adhesive layer 9 having a thickness of 20 μm was performed. Finally, punching was performed so that the size of one unit of the IC tag label 1 was 54 mm × 86 mm, and the connecting body of the IC tag label 1 was completed.

  It was confirmed that the IC tag labels 1 of Examples 1 to 5 and Comparative Example described above can be read and written without any problem in a read / write test using a reader / writer at a frequency of 13.56 MHz.

  Further, the suitability for printing of the IC tag labels 1 of Examples 3 to 5 and Comparative Example was good, the adhesion of the printing ink was also good, and no defective product was detected. However, regarding the biodegradability test of the ink receiving layer 6, in the comparative example, biodegradation did not occur and it was determined as a defective product.

The above evaluations were performed by the following methods.
Suitability for printing: It was visually judged whether or not stable ink transfer was performed on the ink receiving layer 6. Products that were faintly printed or not printed were considered defective.
Adhesion: evaluated by a cellophane tape peeling test. A cellophane tape with a size of 18 mm x 25 mm applied to the surface of inkjet printing 10a on the ink receiving layer 6 surface, left for 1 hour at room temperature, and then peeled off at once, the printed film did not transfer to the cellophane tape Any part that was transferred was regarded as defective.
Biodegradability: The produced IC tag label 1 was embedded in compost and allowed to stand for 6 months, and then it was visually evaluated whether or not the ink jet print 10a on the surface of the ink receiving layer 6 was decomposed. A product whose decomposition was in progress was regarded as a non-defective product, and a product having no change was regarded as a defective product.

It is a top view of an IC tag label. It is sectional drawing which shows 1st Embodiment of an IC tag label. It is sectional drawing which shows the 2nd Embodiment. It is sectional drawing which shows the 3rd Embodiment. It is sectional drawing which shows the same 4th Embodiment. It is sectional drawing which shows the 5th Embodiment. It is sectional drawing which shows the 6th Embodiment. It is a figure which shows embodiment using an anchor layer for an ink receiving layer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 IC tag label 2 Antenna pattern 3 IC chip 4, 4a Surface protective film 4b 2nd surface protective film 5a, 5b Adhesive layer 6 Ink receiving layer 7 Anchor layer 8 Release paper 9 Adhesive layer 10a Inkjet printing 10b Normal printing 11 Base film

Claims (6)

An IC chip is mounted on the antenna pattern formed on the base film surface, the antenna pattern surface of the base film is covered with a surface protective film via an adhesive layer, and an adhesive layer is formed on the base film surface opposite to the antenna pattern. An IC tag label, wherein the surface protection film is made of a biodegradable material and / or a biological material. An IC chip is mounted on the antenna pattern formed on the base film surface, the antenna pattern surface of the base film is covered with a surface protective film via an adhesive layer, and an adhesive layer is formed on the base film surface opposite to the antenna pattern. An IC tag label in which the base film and the surface protective film are made of a biodegradable material and / or a biological material. The surface of the surface protective film has a second surface protective film made of a biodegradable material and / or a biological material, and a biodegradable material on the outer surface of the second surface protective film and / or 3. The IC tag label according to claim 1, further comprising an ink receiving layer comprising a biological material and a filler, wherein the ink receiving layer is subjected to ink jet printing. An IC chip is mounted on the antenna pattern formed on the base film surface, the antenna pattern surface of the base film is covered with a surface protective film via an adhesive layer, and an adhesive layer is formed on the base film surface opposite to the antenna pattern. In the IC tag label in which the surface protective film is laminated, the surface protective film is made of a biodegradable material and / or a biological material, and the biodegradable material and / or biological material and filler on the outer surface of the surface protective film An IC tag label comprising: an ink receiving layer comprising: an ink receiving layer formed by inkjet printing. An IC chip is mounted on the antenna pattern formed on the base film surface, the antenna pattern surface of the base film is covered with a surface protective film via an adhesive layer, and an adhesive layer is formed on the base film surface opposite to the antenna pattern. In which the base film and the surface protective film are made of a biodegradable material and / or a biological material, and the outer surface of the surface protective film has a biodegradable material and / or a biological material. An IC tag label comprising an ink receiving layer made of a material and a filler, and ink jet printing on the ink receiving layer. Any one of offset printing, letterpress printing, gravure printing, and silk screen printing is performed together with ink jet printing, and the claim according to any one of claims 3, 4, and 5 IC tag label of description.

Images