JP2015028109A - Adhesive label, manufacturing method of adhesive label and label issuance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adhesive label having non-adhesive property at storage and exhibiting adhesiveness by opening a functional layer in use, the adhesive label capable of lowering thermal energy for opening the functional layer and capable of stabilizing an opening shape of the functional layer.SOLUTION: An adhesive label 1 includes: a base material 2 having a recording surface; an adhesive layer 3 arranged on a side opposite to the recording surface of the base material 2; and a functional layer 4 installed at the adhesive layer 3. The functional layer 4 includes one of a material mainly made of wax, a material mainly made of ethylene-acetate copolymer and a material mainly made of acryl, and opens by heating to expose the adhesive layer 3. The melting point of the functional layer 4 is within a range of 50-150°C. A coating weight thereof is within a range of 0.3-2 gf/m.

Description

  The present invention relates to a pressure-sensitive adhesive label that is non-tacky during storage and exhibits pressure-sensitive adhesive properties during use, a method for producing a pressure-sensitive adhesive label, and a label issuing device.

  In recent years, pressure-sensitive adhesive labels have been used for purposes such as price display labels, product display labels, advertisement labels, and packaging seal labels. The pressure-sensitive adhesive label includes a base material including a display recording layer, a pressure-sensitive adhesive layer, and a release paper (separator). When pasting on the adherend, the release paper is peeled off and pasted on the adherend via the exposed adhesive layer. A normal pressure-sensitive adhesive label is formed by pasting a strip-shaped release paper on a pressure-sensitive adhesive layer formed by applying a pressure-sensitive adhesive to the entire back surface of a belt-shaped substrate, and then performing die cutting. Therefore, when peeling the release paper and sticking the adhesive label, the adhesive label is attached to the adherend over the entire back surface. Moreover, since the release paper peeled off when using the adhesive label is discarded without being reused, the environmental load cannot be reduced.

  Conventionally, an adhesive label having a thermosensitive recording layer as a display recording layer on the surface of a substrate has been used. This pressure-sensitive adhesive label is recorded by coloring the heat-sensitive recording layer by a heating means such as a thermal head. Specifically, the pressure-sensitive adhesive label has a heat-sensitive recording layer in which a color former and a developer are mixed on the surface of the substrate, a pressure-sensitive adhesive layer is disposed on the back surface of the substrate, and the surface of the pressure-sensitive adhesive layer. It has a laminated structure in which release paper is disposed. The surface of the release paper that contacts the pressure-sensitive adhesive layer is coated with polyethylene as a sealing layer on the paper or film that is the base material of the release paper, and further with a silicone resin applied thereon, Improves releasability. In order to avoid unintentional color development or discoloration of the heat-sensitive recording layer due to heat during production, the pressure-sensitive adhesive label is usually coated with a pressure-sensitive adhesive layer on a release paper alone and dried to form a pressure-sensitive adhesive layer. The release paper is laminated and integrated through this pressure-sensitive adhesive layer. This prevents unintentional color development or discoloration of the heat-sensitive recording layer provided on the surface of the substrate due to heat applied during application of the adhesive or drying.

  On the other hand, a pressure-sensitive adhesive label is known that does not use release paper in order to reduce the environmental burden. In this pressure-sensitive adhesive label, a heat-sensitive recording layer is formed on the surface of the substrate, a pressure-sensitive pressure-sensitive adhesive layer is disposed on the back surface of the substrate, and a silicone resin is provided on the surface of the heat-sensitive recording layer (that is, the uppermost surface of the pressure-sensitive adhesive label). A release agent such as is applied. Thereby, even if the pressure-sensitive adhesive label is wound in a roll shape, releasability between the heat-sensitive recording layer and the pressure-sensitive pressure-sensitive adhesive layer is ensured.

  As the conventional pressure-sensitive adhesive label described above, for example, Patent Document 1 does not require release paper, and the sensitivity of the heat-sensitive recording layer decreases when the label heat-sensitive recording material (pressure-sensitive adhesive label) is wound in a roll, or A label thermal recording material that does not cause unintended color development or discoloration is described. That is, a release layer is provided on the heat-sensitive recording layer formed on the substrate instead of the release paper. However, when a solvent-based release agent is used as the release layer, the sensitivity of the heat-sensitive recording layer is lowered by the solvent or unintended color development or discoloration occurs. In addition, the use of an emulsion release agent as the release layer solves the above-mentioned solvent problem, but the release component penetrates into the thermal recording layer and the recording sensitivity decreases, or the release component moves to the adhesive layer. Will occur. Therefore, a non-solvent silicone resin is applied on the heat-sensitive recording layer, and a silicone resin layer cured by irradiation with radiation such as ultraviolet rays is formed to form a release layer. It is described that this can prevent a decrease in sensitivity of the heat-sensitive recording layer and unintended color development or discoloration.

  Patent Document 2 describes a label without a mount (adhesive label that does not use a release paper) and a manufacturing method thereof. When an ultraviolet curable silicone resin layer is used as the release layer formed on the thermosensitive coloring layer, if the elapsed time until use becomes long, a part of the pressure-sensitive adhesive moves to the release layer, and the peelability decreases. As a result, the pressure-sensitive adhesive surface and the ultraviolet curable silicone resin surface are adhered, and it becomes difficult to feed out the roll-like label without a mount. Furthermore, the pressure-sensitive adhesive moves to the heat-sensitive color developing layer, so that the heat of the thermal head is hardly transmitted to the heat-sensitive color developing layer, and color development becomes difficult. Therefore, a solventless silicone resin is used as the release layer. That is, a solvent-free silicone layer is applied to the surface of a label substrate provided with a thermosensitive coloring layer and dried. Next, a pressure-sensitive adhesive is applied to the back surface of the label base material and dried to form a mountless label. Thus, it is described that it is possible to feed out a roll-like non-mounting label without lowering the peelability, and to vividly color the thermosensitive coloring layer.

  Furthermore, Patent Document 3 describes a no-separator thermosensitive recording label (adhesive label that does not use release paper) and a method for producing the same. In the no-separator type thermal recording label, a thermosensitive coloring layer is laminated on one side of a substrate, a release layer is laminated thereon, and an adhesive layer is provided on the other side of the substrate. Here, in the release layer, an additive is dispersed in a release agent matrix made of an emulsion type silicone resin, and the release agent matrix is heated and cured in the presence of a curing catalyst such as organic tin or a platinum catalyst. This describes that the contact between the thermal head and the surface of the release layer is smooth, the thermal head is smoothly moved, and the matching property of the release layer to the thermal head is improved.

  Said conventionally well-known adhesive label affixes the whole surface of an adhesion layer to a to-be-adhered body. However, depending on the application, the adhesive label may not be attached to the adherend over the entire back surface, but it may be necessary to partially seal the adhesive strength of the adhesive label and attach it to the adherend.

  As this type of pressure-sensitive adhesive label, for example, Patent Document 4 proposes a pressure-sensitive adhesive label that improves the pressure-sensitive adhesive label that has been used in the past, and that exhibits adhesiveness only in the necessary portion without using release paper. FIG. 10 is a schematic cross-sectional view of the pressure-sensitive adhesive label 100 (FIG. 1 of Patent Document 4). The pressure-sensitive adhesive label 100 includes a support 102, a pressure-sensitive adhesive layer 103 formed on one surface of the support 102, a weak pressure-sensitive adhesive layer 105 formed on the surface of the pressure-sensitive adhesive layer 103, and a weak pressure-sensitive adhesive layer. A thermal reaction layer (functional layer) 104 formed on the surface of 105 and opened by heating, and a print layer 106 formed on the other surface of the support 102 on which characters and figures are recorded. The pressure-sensitive adhesive label 100 exhibits adhesiveness by heating and opening the thermal reaction layer 104 by a heating means such as a thermal head and exposing the lower weak pressure-sensitive adhesive layer 105 and the pressure-sensitive adhesive layer 103. Therefore, the area where the adhesiveness is developed can be arbitrarily set according to the use of the adhesive label 100 or according to the properties of the adherend. Moreover, since release paper is not required, it has the advantage that an environmental load reduces.

Japanese Patent Laid-Open No. 5-8541 JP 10-171355 A JP 2004-1287 A JP 2012-63616 A

  Since the pressure-sensitive adhesive labels described in Patent Documents 1 to 3 do not use release paper, the environmental load is reduced. However, it is necessary to provide a release layer directly on the surface of the thermal recording layer in place of the release paper, and the recording sensitivity of the thermal recording layer is lowered due to its structure. Further, since a release layer is directly provided on the heat-sensitive recording layer, it is necessary to use an ultraviolet curable silicone resin or the like as the release layer. The ultraviolet curable silicone resin has problems such as high cost and difficulty in reducing the thickness of the release layer. Further, the ultraviolet curable silicone resin has a tendency to generate heat upon curing, and the coating conditions are limited, so that a new manufacturing apparatus is required. In other words, it is necessary to select an ozone-less lamp that generates less ozone, such as a low-pressure mercury lamp, a medium-pressure mercury lamp, a high-pressure mercury lamp, and a metal haloid lamp. In addition, a manufacturing apparatus in which a plurality of high-power lamps with an output of 30 W / cm or more are arranged in parallel is required.

  The pressure-sensitive adhesive label 100 described in Patent Document 4 is useful in that it does not use release paper, reduces the environmental load, and can arbitrarily set a region that develops adhesiveness. However, due to the physical properties and configuration of the film material of the thermal reaction layer 104, the thermal energy when opening the thermal reaction layer 104 tends to be relatively higher than the thermal energy when performing thermal recording. Furthermore, when forming an opening pattern with a large area, when forming each opening large, or when forming each opening at high speed, the opening shape of the thermal reaction layer 104 is not constant, and the adhesive characteristic is It could be unstable.

  In order to solve the above-mentioned problems, the pressure-sensitive adhesive label of the present invention reduces the heat energy when opening the thermal reaction layer installed on the surface of the pressure-sensitive adhesive layer, and manufactures pressure-sensitive adhesive labels and pressure-sensitive adhesive labels with a stable opening shape. A method and a label issuing device are provided.

  The pressure-sensitive adhesive label of the present invention comprises a base material having a recording surface, a pressure-sensitive adhesive layer placed on the opposite side of the base material from the recording surface, and a functional layer placed on the pressure-sensitive adhesive layer, The layer includes any one of a material mainly composed of wax, a material mainly composed of ethylene-vinyl acetate copolymer, and a material mainly composed of acrylic, and is opened by heating to expose the adhesive layer. It was decided.

  The melting point of the functional layer is in the range of 50 ° C to 150 ° C.

The functional layer has an adhesion amount in the range of 0.3 gf / m ^{2 to 2} gf / m ² .

  Moreover, it decided to have a barrier layer between the said base material and the said adhesion layer.

  Further, the barrier layer contains a water-soluble polymer material.

  The water-soluble polymer material includes a water-soluble acrylic resin.

  The water-soluble acrylic resin is included in the barrier layer in the range of 10 wt% to 40 wt%.

The barrier layer is formed in the range of 0.5 gf / m ^{2 to 5} gf / m ² .

  The functional layer contains an inorganic filler.

  The base material has a heat-sensitive recording layer recorded on the recording surface by heating.

  The method for producing a pressure-sensitive adhesive label of the present invention comprises a pressure-sensitive adhesive layer forming step for forming a pressure-sensitive adhesive layer on the side opposite to the recording surface of a substrate, a material mainly composed of wax, and a material mainly composed of an ethylene-vinyl acetate copolymer. And an application step of applying a solution containing any one of materials mainly composed of acrylic to the adhesive layer.

  The label issuing apparatus of the present invention includes a transport unit that transports the adhesive label, a heating unit that heats the functional layer to form an opening, and exposes the adhesive layer, the transport unit, and the heating unit. And a control unit for controlling.

  Further, the recording surface of the pressure-sensitive adhesive label is heated for recording.

  The pressure-sensitive adhesive label according to the present invention comprises a base material having a recording surface, a pressure-sensitive adhesive layer placed on the opposite side of the base material from the recording surface, and a functional layer placed on the pressure-sensitive adhesive layer, The layer includes any one of a material mainly composed of wax, a material mainly composed of ethylene-vinyl acetate copolymer, and a material mainly composed of acrylic, and is opened by heating to expose the adhesive layer. . Thereby, the thermal energy for opening the functional layer is reduced, and the opening shape of the functional layer is stabilized.

It is a cross-sectional schematic diagram of the adhesive label which concerns on 1st embodiment of this invention. It is a figure for demonstrating a mode that adhesiveness is expressed to the adhesive label which concerns on 1st embodiment of this invention. The melting characteristic of the functional layer which comprises the adhesive label of this invention is represented. It is a figure for demonstrating the opening degree and opening sensitivity of the functional layer which comprise the adhesive label of this invention. It is a cross-sectional schematic diagram of the adhesive label which concerns on 2nd embodiment of this invention. It is a cross-sectional schematic diagram of the adhesive label which concerns on 3rd embodiment of this invention. It is process drawing showing the manufacturing method of the adhesive label which concerns on 4th embodiment of this invention. It is a typical block diagram of the label issuing apparatus which concerns on 5th embodiment of this invention. It is a typical block diagram of the label issuing apparatus which concerns on 6th embodiment of this invention. It is a cross-sectional schematic diagram of a conventionally well-known adhesive label.

<Adhesive label>
The present invention is a pressure-sensitive adhesive label 1 that includes a substrate 2, an adhesive layer 3, and a functional layer (thermal reaction layer) 4, and the functional layer 4 is opened by heating to expose the adhesive layer.

(First embodiment)
FIG. 1 is a schematic cross-sectional view of an adhesive label 1 according to the first embodiment of the present invention. As shown in FIG. 1, the adhesive label 1 includes a substrate 2 having a recording surface (lower side in FIG. 1), and an adhesive layer 3 installed on the opposite side (upper side in FIG. 1) of the recording surface of the substrate 2. And a functional layer 4 installed on the adhesive layer 3. Here, the functional layer 4 includes any one of a material mainly composed of wax, a material mainly composed of ethylene-vinyl acetate copolymer, and a material mainly composed of acrylic, and is opened and adhered by heating. Layer 3 is exposed.

  FIG. 2 is a diagram for explaining how the adhesive label 1 according to the first embodiment of the present invention develops adhesiveness. A thermal head 15 is used as a heating means. As shown in FIG. 2A, the heating part H of the thermal head 15 is brought into contact with the functional layer 4 of the adhesive label 1. Then, as shown in FIG. 2B, the heated functional layer 4 is melted and contracted to form the opening 13, and the lower adhesive layer 3 is exposed. Next, as shown in FIG. 2 (c), the opening 13 side is placed on the adherend 12, and is relatively pressed from the substrate 2 side to be included in the adhesive layer 3 through the opening 13. The adhesive to be adhered adheres to the adherend 12. Therefore, by selecting the number and positions of the openings 13 by the thermal head 15, the adhesiveness of the adhesive label 1 can be controlled according to the properties and applications of the adherend 12. Moreover, since no release paper is used, the environmental burden is reduced.

The functional layer 4 is configured to include any one of a material mainly composed of wax, a material mainly composed of an ethylene-vinyl acetate copolymer, and a material mainly composed of acrylic. Thereby, the melting point of the functional layer 4 can be lowered and the opening shape can be stabilized. For example, the melting point of the functional layer 4 is in the range of 50 ° C to 150 ° C, preferably 50 ° C to 100 ° C, more preferably 70 ° C to 90 ° C. When the melting point is lower than 50 ° C., handling of the pressure-sensitive adhesive label 1 becomes difficult, and when it exceeds 150 ° C., the stability of the opening shape is lowered. Moreover, the adhesion amount after drying of the functional layer 4 is preferably 0.3 gf / m ^{2 to 5} gf / m ² , more preferably 0.3 gf / m ^{2 to 2} gf / m ² . When the adhesion amount after drying is less than 0.3 gf / m ² , the coverage of the adhesive layer 3 is lowered, and when it exceeds 5 gf / m ² , the heat capacity is increased, the opening sensitivity is lowered, and the diameter of the opening 13 is reduced. .

  FIG. 3 shows the melting characteristics of the functional layer 4 constituting the pressure-sensitive adhesive label 1 of the present invention. The vertical axis is the heat flow and the horizontal axis is the temperature. Graph A is an example of a melting characteristic suitable as a material used for the functional layer 4 of the present invention, and graph B is an example of a melting characteristic unsuitable as a material used for the functional layer of the present invention. The functional layer 4 suitable for the pressure-sensitive adhesive label 1 of the present invention has a necessary hardness at room temperature and has a narrow temperature range from the start to the end of melting as shown in graph A. For example, in graph A, melting starts at 70-75 ° C. and ends at 80-82 ° C., and the temperature range from the start to the end of melting is about 10 ° C. On the other hand, in the graph B, the melting starts from about 40 ° C., ends at about 65 ° C., and the temperature range from the start to the end of melting is 20 ° C. or more. As the temperature range from the start to the end of melting is narrower, the functional layer 4 dissolves instantaneously during heating, opens at a high speed, and the opening shape becomes stable. In order to provide the necessary hardness at room temperature and narrow the temperature range from the start to the end of melting, the molecular weight distribution width of the material is narrowed. Further, since the temperature in the vicinity of 80 ° C. is the color development temperature at the time of thermal recording, the functional layer 4 can be opened with the thermal energy capable of color development on the thermal paper.

  FIG. 4 is a view for explaining the opening degree and opening sensitivity of the functional layer 4 constituting the pressure-sensitive adhesive label 1 of the present invention. FIG. 4A is a graph showing the relationship between the opening degree and the opening sensitivity of the film, and FIG. 4B is a graph of the film included in the region X and applicable to the functional layer 4 of the present invention. FIG. 4C shows an opening state of a film that is included in the region Y and cannot be applied to the functional layer 4 of the present invention.

  In FIG. 4A, the vertical axis represents the aperture and the horizontal axis represents the aperture sensitivity. Here, the degree of opening represents the degree to which the opening 13 can be stably formed, and the degree of opening “good” means that the opening shape of the opening 13 can be stably formed and the opening can be controlled by heat control. It shows that 13 size controls can be performed. An "openness" of the degree of opening indicates that the film does not open. Aperture sensitivity is an index that indicates the thermal energy to be applied and the opening state of the film. “High” indicates that the film is opened with low thermal energy, and “low” indicates that the film has low opening sensitivity. Indicates that the opening requires high thermal energy. FIG. 4 shows the measured values of various films as dots. A film showing the characteristics included in the region X surrounded by the broken line can be applied to the functional layer 4 of the present invention, and the film showing the characteristics included in the region Y has low opening sensitivity or poor opening degree. It cannot be applied to the invention. As shown in FIG. 4 (b), the opening shape of the film included in the region X is sufficiently large and uniform, and can be applied to the functional layer 4 of the present invention, but as shown in FIG. 4 (c). The film included in the region Y has a small opening size and a non-uniform opening shape, so that the adhesive strength is reduced, and it is difficult to control the targeted adhesive strength. It cannot be applied.

"Functional layer (thermal reaction layer)"
Waxes in wax-based materials are used in many industries and products such as coatings in the packaging field, binders for ceramic processing, cosmetics, printing inks, abrasives, crayons, and especially in polymer molding processing. In the field, it is widely added to resins as molding aids and mold release agents.

  Specifically, wood wax, beeswax, lanolin, carnauba wax, candelilla wax, montan wax, ceresin wax, paraffin wax, microcrystalline wax, oxidized wax, ester wax, polyethylene wax, polypropylene wax, low molecular weight polyethylene, Fischer-Tropsch Synthetic waxes such as waxes, α-olefin-maleic anhydride copolymer waxes, fatty acid esters, esters such as sorbitan fatty acid esters, amides such as oleylamide, and bisamides can be used.

  These waxes are used in many industry products and have good supply stability because they have a wide molecular design range and can control molecular weight and melting point widely. At the time of selection, from the viewpoint of improving the aperture sensitivity of the film, it is preferable to select the melting point within the range of 50 ° C to 100 ° C, and more preferably when the melting point is selected within the range of 70 ° C to 90 ° C. It becomes good. These waxes may be used alone or in combination of two or more. In modifying the wax, vinyl modification such as acrylic resin modification, styrene-acrylic resin modification, or styrene resin modification, and acid modification may be used. Furthermore, when it is necessary to consider the heat resistance according to the media application, the wax is a low molecular weight material compared to general thermoplastic resins, so bleed out after film formation and stickiness due to it occur. Choose material to avoid.

  As a material mainly composed of an ethylene-vinyl acetate copolymer, an ethylene-vinyl acetate copolymer or a material containing an ethylene-vinyl acetate copolymer and a wax can be used. When it is necessary to consider the heat resistance according to the construction application of the media, an ethylene-vinyl acetate copolymer of a heat-meltable material having a high melt viscosity is selected. When the opening sensitivity of a desired film cannot be obtained, a configuration containing a wax having a low melting point is desirable (when the viscosity change for obtaining a so-called opening action is poor). When a wax is used in combination, the content of the wax is preferably 20 wt% or less with respect to the total amount of the resin composition. When this content rate exceeds 20 wt%, the glass transition temperature decreases and the blocking resistance deteriorates.

  As a material mainly composed of acrylic, a low molecular acrylic material or a material containing wax can be used. The acrylic material has a glass transition temperature Tg of normal temperature or higher (preferably 50 ° C. or higher, more preferably 70 ° C. or higher) and a low melting point of 200 ° C. or lower (preferably 170 ° C. or lower, more preferably 150 ° C. or lower). Or emulsion type. In order to improve releasability from the contact heat source, a wax is used in combination. The content of the wax is preferably 20 wt% or less with respect to the total amount of the resin composition.

  The above-mentioned material is selected as the functional layer 4, and it has a low melting point, a small heat of fusion, a solid at room temperature, and a solution to enable thin film coating in order to increase aperture sensitivity. Specifically, the above materials are dissolved in a solvent to form a solution, and after coating, the material is dried to form a thin film. Since the above materials have good dispersibility in solvents and few solid components, they are suitable for thinning by coating.

  In general, when a film is formed, a resin is melt-extruded to form a film, and then stretched vertically and horizontally to form a film. The film is formed by orienting the molecular chains of the resin that have been oriented in a random direction in the melt extrusion in a certain direction in the stretching process. When the molecular chain is oriented in a random direction rather than in a random direction, the strength in that direction becomes higher, and a thin film can be formed. However, if the thermal energy for opening the functional layer 4 is to be reduced, the intermolecular bond energy of the resin is lowered, the film strength is lowered, and it is difficult to form a thin film. Therefore, the functional layer 4 is formed by forming a solution and forming a thin film by coating and drying. At first glance, general-purpose polyolefin-based PE (polyethylene) and PP (polypropylene) having a low melting point in terms of physical properties are considered advantageous in selecting a membrane. However, since the glass transition point is low, both the film and the coating film are softened at room temperature, making it difficult to control the opening of the film. Therefore, in increasing the aperture sensitivity of the functional layer 4, a material mainly composed of a wax having a low melting point, a small heat of fusion and a solid at room temperature, a material mainly composed of an ethylene-vinyl acetate copolymer, and acrylic are used. It is configured to include any of the main materials.

"Base material"
The substrate 2 includes a recording surface on the side opposite to the adhesive layer 3. The recording surface of the substrate 2 can be recorded by printing, an ink jet method, an electrophotographic method, a laser printing method, or the like. Moreover, the base material 2 can be set as the structure which has a thermosensitive recording layer recorded on a recording surface by heating. In the heat-sensitive recording layer, for example, a leuco dye is used as a color former, and a compound or an oxide that develops color by contact with the leuco dye by heat is used as a developer.

  The base material 2 is preferably a material that increases the contact area between the adhesive layer 3 and the adherend 12 when pressed from the base material 2 side as shown in FIG. Moreover, the material which can maintain the contact area over a long time is preferable. When a material having a high rigidity is used as the base material, the adhesive layer 3 is difficult to contact the surface of the adherend 12 through the opening 13, and after the contact, the surface of the adherend 12 is separated by the rigidity of the base material. The pressure-sensitive adhesive layer 3 is peeled off and the predetermined pressure-sensitive adhesive force cannot be maintained. Therefore, paper or polyolefin polymer with low rigidity is used as the substrate 2.

  When paper is used as the substrate 2, any of glassine paper, fine paper, art paper, design paper, Japanese paper, nonwoven fabric, synthetic resin, recycled paper, coated paper, fine coated paper, cast coated paper, paperboard To include. The fine paper is preferably made of wood pulp such as hardwood pulp (NBKP) and softwood pulp (LBKP), plant raw materials such as straw, bagasse, hemp and the like, and not coated with pigment. High-quality paper is classified as non-coated printing paper among those classified as printing information paper in the “Category classification table of paper and paperboard” (published by the Japan Paper Association) described in “Statistical Chronology of Paper and Paperboard”. And those corresponding to form paper, PPC paper, etc. classified as information paper. Of the paper classified as the above-mentioned fine paper, the recycled paper preferably uses recycled waste paper raw materials.

  The art paper and the coated paper are classified as coated printing paper in the above-mentioned “paper / paperboard type classification table”, and include those classified as lightweight coated paper. The finely coated paper includes those classified as finely coated printing papers 1 to 3 in the “paper / paperboard type classification table”. The design paper includes fancy paper, embossed paper, and the like classified as special printing paper and other coated printing paper.

  The cast coated paper is cast coated paper classified as other printing paper in the above “paper / paperboard type classification table”, and is used for high-grade printing applications with excellent smoothness. The paperboard is classified into cardboard base paper and paperboard paperboard in the above-mentioned “paper / paperboard type classification table”. The Japanese paper includes handmade paper using plant materials such as kozo and mitsumata, as well as mechanical papermaking Japanese paper that mimics this. Nonwoven fabrics include those formed with a sheet without using water. Synthetic paper is obtained by forming a synthetic resin material into a sheet by axial stretching or the like.

  Which of the above is used as the substrate 2 is determined in consideration of label usage, display record contents, and the like. For example, when the adhesive label 1 is used for application to various food packaging labels, catalogs, posters, and the like, coated paper such as coated paper, art paper, and cast coated paper is preferable as the substrate. In addition, when the adhesive label 1 is used for a special label, a design paper, a nonwoven fabric, a synthetic paper, a paperboard or the like is suitable as a base material. Further, when characters and barcodes are mainly recorded on the recording surface of the substrate 2, fine coated paper or high quality paper is preferable as the substrate.

  A polyolefin-based polymer can be used as the substrate 2. Polyolefin-based polymers use plant-derived resins with excellent environmental suitability, low-temperature shrinkage, flexible waist, low natural shrinkage, excellent fracture resistance, rigidity, and shrink finish, and natural shrinkage And has the property of suppressing delamination. Note that these are merely examples, and in short, any material can be used as the substrate 2 from the above materials as long as the adhesive force can be easily expressed. That is, it may be adjusted as appropriate according to the application.

"Adhesive layer"
A pressure sensitive adhesive can be used as the adhesive layer 3. The pressure-sensitive adhesive can be bonded by applying a small pressure at room temperature without applying water, solvent, heat or the like. Furthermore, it has cohesive strength and elasticity, can be strongly bonded, and can be peeled off from a hard smooth surface. Specifically, a silicone pressure sensitive adhesive, a rubber pressure sensitive adhesive, and an acrylic pressure sensitive adhesive can be used depending on the application. The silicone-based adhesive includes silicone having high cohesive strength and silicone having high adhesive strength. The rubber-based adhesive includes natural rubber, styrene-butadiene rubber (SBR), polyisobutylene, and rubber-based materials. The acrylic pressure-sensitive adhesive includes a crosslinking material using a monomer having a low glass transition and a crosslinking material, and a non-crosslinking material obtained by copolymerizing a monomer having a low glass transition and a high monomer.

  The solvent used when forming the adhesion layer 3 includes an emulsion system and an organic solvent system. When an organic solvent system is used, the boiling point of the organic solvent can be set to the temperature during drying. For example, when using toluene as the organic solvent, the temperature during drying is set to 70 ° C. When using ethyl acetate as the organic solvent, the temperature during drying is 75 ° C. When using an emulsion solvent, the temperature during drying is 100 ° C. In the case of using an organic solvent system, the temperature, the conveyance speed, and the air volume can be adjusted in the drying process step after applying the adhesive. In the 1 organic solvent system or the 2 organic solvent system, the temperature of the drying process step may be set to be equal to or lower than the boiling point to adjust the air volume or the like. In consideration of the color development temperature of the thermosensitive recording layer, it is preferable to use toluene as a solvent.

(Second embodiment)
FIG. 5 is a schematic cross-sectional view of the pressure-sensitive adhesive label 1 according to the second embodiment of the present invention. A different point from 1st embodiment is a point provided with the barrier layer 5 between the base material 2 and the adhesion layer 3, and another structure is the same as that of 1st embodiment. Accordingly, the following mainly describes differences and omits the description of the same parts. The same portions or portions having the same function are denoted by the same reference numerals.

  As shown in FIG. 5, the pressure-sensitive adhesive label 1 includes a laminated structure of a base material 2, a barrier layer 5, a pressure-sensitive adhesive layer 3, and a functional layer 4. The surface of the substrate 2 opposite to the barrier layer 5 is a recording surface, and a heat-sensitive recording layer (not shown) is formed. That is, the barrier layer 5 is disposed on the side opposite to the recording surface of the substrate 2. The adhesive layer 3 is placed on the barrier layer 5. The functional layer 4 is installed on the adhesive layer 3 and is opened by heating to expose the adhesive layer 3. Also in the second embodiment, the adhesiveness of the adhesive label 1 can be controlled according to the property and application of the adherend 12 by selecting the number and positions of the openings 13 using the thermal head 15 or the like. it can. Moreover, since no release paper is used, the environmental load can be reduced.

  Furthermore, by providing the barrier layer 5 between the base material 2 and the pressure-sensitive adhesive layer 3, it is limited that the solvent contained in the pressure-sensitive adhesive oozes out to the base material 2 side, and the recording surface of the base material 2 is not intended. Prevents color development and discoloration. Therefore, the types of color formers and developers that can be used on the recording surface of the substrate 2 are increased. Further, it is possible to reduce the basis weight of the substrate, that is, to form the substrate thinly. That is, the selection range of the base material 2 that can be used increases. This will be specifically described below.

"Barrier layer"
The barrier layer 5 has a solvent resistance and a barrier effect for shielding the solvent. The barrier layer 5 is preferably made of a material having heat resistance, water resistance, and plastic resistance in addition to barrier resistance and solvent resistance. The barrier layer 5 uses a quick-drying material. For example, it is preferable to use a material having a quick drying property of 1 m / min or more, preferably 3 m / min or more. Barrier layer 5 is preferably formed in the range of ^{0.5g / m 2 ~5g / m 2} . When the barrier layer 5 is less than 0.5 g / m ² , the barrier effect for shielding the solvent is lowered, and when it exceeds 5 g / m ² , the workability is lowered. The barrier layer 5 also functions as a sealing layer for the adhesive layer 3 on the side opposite to the recording surface of the substrate 2.

  A water-soluble polymer material can be used as the barrier layer 5. A water-soluble acrylic resin can be used as the water-soluble polymer material. Other water-soluble polymer materials include polyvinyl alcohol, starch and derivatives of vinyl alcohol such as itaconic acid-modified polyvinyl alcohol and sulfonic acid-modified polyvinyl alcohol, cellulose derivatives such as hydroxymethylcellulose, hydroxyethylcellulose, carboxymethylcellulose, methylcellulose, and ethylcellulose. Sodium acrylate, polyvinylpyrrolidone, acrylamide / acrylic acid ester copolymer, acrylamide / acrylic acid ester / methacrylic acid terpolymer, styrene / maleic anhydride copolymer alkali salt, isobutylene / maleic anhydride copolymer alkali A salt, polyacrylamide, sodium alginate, gelatin, casein and the like can be used.

  The water-soluble acrylic resin is preferably contained in the barrier layer 5 in the range of 10 wt% to 40 wt%. When the water-soluble acrylic resin is less than 10 wt%, the barrier effect for shielding the solvent is lowered, and when it exceeds 40 wt%, the workability is lowered. The water-soluble acrylic resin preferably contains a solid component of 10 wt% to 30 wt%, more preferably about 20 wt%. Further, the water-soluble acrylic resin has a viscosity in the range of 500 mPa · s to 3000 mPa · s, and more preferably has a viscosity of about 1000 mPa · s. Other materials and configurations of the respective layers are the same as those in the first embodiment, and thus description thereof is omitted.

(Third embodiment)
FIG. 6 is a schematic cross-sectional view of the pressure-sensitive adhesive label 1 according to the third embodiment of the present invention. A different point from 1st embodiment or 2nd embodiment is a point which contains the inorganic filler 6 in the functional layer 4, and another structure is the same as that of 1st embodiment or 2nd embodiment. Therefore, different parts will be mainly described below. The same portions or portions having the same function are denoted by the same reference numerals.

  The pressure-sensitive adhesive label 1 has a structure in which the base material 2, the pressure-sensitive adhesive layer 3 and the functional layer 4 are sequentially stacked, or a structure in which the base material 2, the barrier layer 5, the pressure-sensitive adhesive layer 3 and the functional layer 4 are sequentially stacked. The functional layer 4 contains an inorganic filler 6 dispersed therein. The inorganic filler 6 is formed from an inorganic material. Inorganic materials have higher thermal conductivity than resin materials. For example, the thermal conductivity of the polymer material is 0.1 W / m ° C. to 0.5 W / m ° C., but the thermal conductivity of the inorganic material is one digit or more higher than this. Therefore, the thermal conductivity of the functional layer 4 is improved, and the temperature of the heating region of the functional layer 4 can be quickly increased over the entire layer thickness. Thereby, the functional layer 4 can be stably opened with high sensitivity, and the position and area of the exposed region of the adhesive layer 3 can be controlled with high accuracy. Further, since the thickness of the opened functional layer 4 itself or the periphery of the opening 13 is formed higher than the surface of the functional layer 4, it is possible to prevent the heating unit and the adhesive layer 3 from being in direct contact with each other. Paper permeability can be ensured. Moreover, although the adhesion layer 3 works so that the diameter of the functional layer 4 may be suppressed by the adhesion force, the adhesion force decreases as the temperature of the adhesion layer 3 increases. That is, by dispersing the inorganic filler 6 in the functional layer 4 and increasing the thermal conductivity, the temperature unevenness of the functional layer 4 is reduced and the adhesive layer 3 is also heated to reduce the adhesive action, and the diameter of the functional layer 4 is increased. The power to suppress is reduced. Thereby, the opening 13 can be more easily formed in the functional layer 4.

  The functional layer 4 contains 10% to 90% by volume, preferably 20% to 60% by volume, of the inorganic filler 6. If it is less than 10% by volume, the effect of improving the thermal conductivity is thin, and if it exceeds 90% by volume, the variation in physical property values becomes large. In addition, since it becomes the structure which the resin material covers the inorganic filler 6, the thermal conductivity of the resin material becomes dominant, and the proportionally distributed thermal conductivity of the resin material and the inorganic material does not appear. The functional layer 4 can be added with a material for adjusting physical property values such as a plasticizer, if necessary. The shape of the inorganic filler 6 may be a plate shape or a spherical shape, and is not particularly limited, but a spherical particle shape is preferable to a non-spherical shape in consideration of variations in physical properties and dispersibility.

  The kind of the inorganic filler 6 is not particularly limited. For example, oxide ceramics such as alumina, silica, titania, zirconia, magnesia, yttria, zinc oxide, iron oxide, nitride ceramics such as silicon nitride, titanium nitride, boron nitride, silicon carbide, calcium carbonate, aluminum sulfate, Aluminum hydroxide, potassium titanate, talc, kaolin clay, kaolinite, halloysite, pyrophyllite, montmorillonite, sericite, mica, amicite, bentonite, asbestos, zeolite, calcium silicate, magnesium silicate, diatomaceous earth, Ceramics such as silica sand, glass fibers and the like can be used alone or in combination. For example, boron nitride, silicon carbide, and aluminum nitride fillers exhibit a thermal conductivity that is 5 to 40 times higher than oxide fillers. Further, by adding an oxide filler such as alumina or silica for the resin material, the thermal conductivity can be increased by one digit or more. Other materials and configurations of the respective layers are the same as those in the first embodiment, and thus description thereof is omitted.

  As mentioned above, although 1st embodiment-3rd embodiment was demonstrated about the adhesive label 1 of this invention, the electrostatic charge of the adhesive label 1 can be prevented by including an antistatic agent in one of layers. it can. This will be specifically described below.

"antistatic"
Any of the substrate 2, the barrier layer 5, the adhesive layer 3 and the functional layer 4 preferably contains an antistatic agent. By including an antistatic agent, conveyance failure of the pressure-sensitive adhesive label 1 can be prevented. As the antistatic agent, for example, glycerin monofatty acid ester can be used. An antistatic agent is blended in any of the above layers or applied to the surface of the layer. As an application method, for example, an antistatic agent may be diluted with a solvent such as water or an alcohol solution, applied using a spray, dipping, brush, roll coater, or the like, and then dried. The content or coating amount of the antistatic agent is not particularly limited. It can be arbitrarily set within a range in which the antistatic function can be exhibited and the opening 13 can be formed in the functional layer 4 using a thermal head. By including an antistatic agent, it is possible to prevent the adhesive label 1 from adhering to the hand or from opening a hole in the functional layer 4 due to electric discharge.

  In the first embodiment, the thermal head 15 is used as a heating means for heating and opening the functional layer 4 of the pressure-sensitive adhesive label 1, but the pressure-sensitive adhesive label 1 according to the present invention is not limited to this heating means. The functional layer 4 may be opened by heating with an electromagnetic wave such as laser or microwave. As the thermal head, a line type thermal head or a serial type thermal head can be used. Further, the resistor of the heat generating portion of the thermal head may be a thin film thermal head or a thick film thermal head formed by a thick film printing method.

  As described above, the pressure-sensitive adhesive label 1 according to the present invention does not use release paper. Therefore, since there is no release paper discarded in use, the environmental load can be reduced. Moreover, since the thickness is reduced by the absence of release paper, the number of issued effective adhesive labels per roll can be increased. Furthermore, since a material with low rigidity is used as the base of the base material 2, when the functional layer 4 is opened and pressed from the base material 2 side, the contact area between the adhesive layer 3 and the adherend 12 is increased. The desired adhesive strength can be secured. In addition, the heat energy for opening the functional layer 4 is reduced, and the opening shape of the functional layer 4 can be stabilized.

<Method for producing adhesive label>
(Fourth embodiment)
Drawing 7 is a flowchart showing the manufacturing method of adhesive label 1 concerning a fourth embodiment of the present invention. The same portions or portions having the same function are denoted by the same reference numerals. The method for producing the pressure-sensitive adhesive label 1 of the present invention comprises a pressure-sensitive adhesive layer forming step S1 for forming the pressure-sensitive adhesive layer 3 on the side opposite to the recording surface of the substrate 2, a wax-based material, and an ethylene-vinyl acetate copolymer. An application step S2 for applying a solution containing any one of a main material and an acrylic main material to the adhesive layer 3, and a functional layer forming step S3 for drying the applied film to form the functional layer 4. With. As a result, a material having a low melting point and opening due to a small amount of heat of fusion can be easily thinned.

<Label issuing device>
The label issuing device of the present invention includes a transport unit that transports the adhesive label of the first to fourth embodiments, a heating unit that heats the functional layer to form an opening, and exposes the adhesive layer, and a transport unit and heating. And a control unit for controlling the unit.

  The label issuing apparatus of the present invention can set an adhesive area and a non-adhesive area according to the purpose of use immediately before using an adhesive label without using a large-scale manufacturing apparatus. Furthermore, the number, position, and aperture ratio of the openings formed in the adhesive region can be changed according to the properties of the adherend and the usage environment of the adhesive label. Furthermore, it is not necessary to use release paper, and the number of effective adhesive labels per roll can be increased because the thickness is reduced by the absence of release paper. Moreover, the environmental load can be reduced by the absence of release paper.

  This will be specifically described. A thermal head or laser light can be used as the heating unit. If a thermal head is used, a large number of heating elements can be installed in a row, and therefore a large number of openings can be formed in the functional layer in a row at the same time. The control unit selects opening pattern information stored in advance, generates heat from the heating element, and forms an adhesive region including a plurality of openings in the functional layer. The control unit controls the transport unit to transport the adhesive label 1 by a predetermined amount, and causes the heating element to generate heat. By repeating this, a predetermined opening pattern in which the adhesive layer is exposed on the adhesive label is formed.

  The opening diameter of the opening can be controlled according to the amount of heat given by the heating element. That is, to reduce the opening diameter, the amount of heat given from the heating element to the functional layer is suppressed, and to increase the opening diameter, the amount of heat is increased. That is, the control unit can control the opening diameter of the opening by controlling the power supplied to the heating element and the heating time for heating the functional layer. The pattern information of the opening is stored in advance, and the control unit controls the heating unit and the conveyance unit based on the selected pattern information of the opening pattern to form an adhesive region composed of the pattern of the opening on the adhesive label. . For example, an opening pattern in which a plurality of openings are arranged vertically and horizontally, an opening pattern in which the openings are arranged in a staggered manner, an opening pattern in which the openings are arranged in a honeycomb shape, an opening pattern having a plurality of different openings, etc. It can be selected and formed. Hereinafter, the fifth and sixth embodiments will be specifically described.

(Fifth embodiment)
FIG. 8 is a schematic configuration diagram of a label issuing device 20 according to the fifth embodiment of the present invention. The same portions or portions having the same function are denoted by the same reference numerals. The label issuing device 20 includes a roll paper storage unit 22 for storing the adhesive label 1, a roll paper cutting unit 23 for cutting the adhesive label 1, a label recording unit 24 as a recording unit for recording on the adhesive label 1, and an adhesive label 1 is provided with an adhesion developing portion 25 that develops adhesiveness. The roll paper storage unit 22 stores the adhesive label 1 wound up in a roll shape. For example, as shown in FIG. 1, the pressure-sensitive adhesive label 1 has a laminated structure of the base material 2, the pressure-sensitive adhesive layer 3 and the functional layer 4, or as shown in FIG. 5, the base material 2, the barrier layer 5, the pressure-sensitive adhesive layer 3 and the function. A layered structure of layers 4 is provided. The roll paper cutting unit 23 cuts the adhesive label 1 sent out from the conveyance roller 27 as the conveyance unit into a predetermined length by the cutter unit 26. The label recording unit 24 records on the recording surface (of the thermosensitive recording layer) of the pressure-sensitive adhesive label 1 placed on the transport roller 28 by the recording thermal head 21. As already described with reference to FIG. 2, the adhesion developing unit 25 heats the functional layer 4 of the adhesive label 1 sandwiched between the conveyance roller 29 as the conveyance unit and the thermal head 15 by the thermal head 15 as the heating unit. The adhesive layer 3 is exposed in the opening 13.

  Here, the thermal head 15 can form an adhesive region in which a plurality of openings 13 are opened in parallel at the same time by arranging a plurality of heating elements in parallel as a heating unit. It is preferable to use a heat concentration type head for the heat generating part. The heat generating surface of the heat generating part may be any of a rectangle, a circle, an ellipse, a heart shape, and other shapes. A plurality of heating elements can be formed with an array density of 100 dpi to 600 dpi.

  The label issuing device 20 can control the heating unit and the conveyance unit by a control unit (not shown) to form an adhesive region including a plurality of openings 13 in the conveyance direction of the adhesive label 1. That is, a required number of openings 13 can be formed at a required position of the adhesive label 1. Thereby, the position and size of the adhesive region that develops the adhesiveness of the adhesive label 1 can be controlled.

(Sixth embodiment)
FIG. 9 is a schematic configuration diagram of a label issuing device 20 according to the sixth embodiment of the present invention. The difference from the fifth embodiment is that characters and the like are recorded on the thermal recording layer by one thermal head 34 and the opening 13 is formed in the functional layer 4. The same portions or portions having the same function are denoted by the same reference numerals.

  The label issuing device 20 records a roll storage unit 30 for storing the pressure-sensitive adhesive label 1 wound in a roll shape, a cutter unit 33 for cutting the pressure-sensitive adhesive label 1, and a heat-sensitive recording layer of the pressure-sensitive adhesive label 1, and a functional layer. 4, a thermal head 34 as a heating unit for forming the opening 13, a platen roller 36 for holding the adhesive label 1 during recording or formation of the opening 13 by the thermal head 34, and a take-up roller 41 a for the adhesive label 1. A winding device 41 that is wound around and temporarily held, conveyance rollers 31 and 39 and driven rollers 32 and 40 as conveyance units for conveying the adhesive label 1, and a conveyance direction regulating means for regulating the conveyance direction of the adhesive label 1 38, energy control applied to the thermal head 34, and rotation control of the transport rollers 31, 39 and the platen roller 36. It comprises a no control unit.

  The label issuing device 20 operates as follows. The control unit drives the conveyance roller 31 and the driven roller 32 to pull out the wound adhesive label 1 in the roll storage unit 30. The control unit further carries in the adhesive label 1 that has passed through the cutter unit 33 from the carry-in path 37 and rotates the platen roller 36 clockwise so as to be sandwiched between the platen roller 36 and the thermal head 34. The control unit further causes the heat generating portion of the thermal head 34 to generate heat and records print information on the recording surface of the adhesive label 1. The control unit rotates the transport roller 39 and the take-up roller 41a, guides the adhesive label 1 recorded on the recording surface from the insertion port 41c to the take-up device 41, and winds it while pressing the take-up roller 41a with the guide 41b. A control part operates the cutter unit 33, cut | disconnects the adhesive label 1, and complete | finishes recording operation | movement.

  Next, the control unit rotates the conveyance roller 39 to convey the cut portion of the adhesive label 1 to the positions of the conveyance roller 39 and the driven roller 40. Next, the control unit drives the conveyance direction regulating means 38, rotates the conveyance roller 39 in the opposite direction, rotates the platen roller 36 clockwise, and reverses the adhesive label 1 through the conveyance path 35 to cause thermal. It is sandwiched between the head 34 and the platen roller 36. Based on the selected pattern information, the controller causes the heat generating portion of the thermal head 34 to generate heat, and forms a predetermined adhesive region including a plurality of openings 13 in the functional layer 4 of the adhesive label 1. The pressure-sensitive adhesive label 1 in which the pressure-sensitive adhesive area is formed is pulled out from the position of the conveyance direction regulating means 38.

  The shape and the like of the adhesive region include an opening pattern in which a plurality of openings 13 are arranged vertically and horizontally, an opening pattern in which the openings 13 are arranged in a staggered manner, an opening pattern in which the openings 13 are arranged in a honeycomb shape, An opening pattern composed of the openings 13 can be selected and formed. Thus, immediately before using the pressure-sensitive adhesive label 1, the pressure-sensitive adhesive region and the non-sticky region can be set according to the purpose of use, and further, depending on the properties of the adherend 12 and the environment in which the pressure-sensitive adhesive label 1 is used. The number, position, and aperture ratio of the openings 13 to be formed can be changed.

DESCRIPTION OF SYMBOLS 1 Adhesive label 2 Base material 3 Adhesive layer 4 Functional layer 5 Barrier layer 6 Inorganic filler 12 Adhered body 13 Opening part 15 Thermal head 20 Label issuing apparatus 21 Thermal head for recording 22 Roll paper storage part 23 Roll paper cutting part 24 Label recording Section 25 Adhesive development section 26 Cutter section 27, 28, 29, 31, 39 Transport roller 30 Roll storage unit 32, 40 Drive roller 33 Cutter unit 34 Thermal head 35 Transport path 36 Platen roller 37 Loading path 38 Transport direction regulating means 41 Device 41a Winding roller 41b Guide 41c Insertion slot H Heating part

Claims (13)

A substrate having a recording surface;
An adhesive layer installed on the side of the substrate opposite to the recording surface;
A functional layer installed on the adhesive layer,
The functional layer includes any one of a material mainly composed of wax, a material mainly composed of ethylene-vinyl acetate copolymer, and a material mainly composed of acrylic. Exposed adhesive label.   The pressure-sensitive adhesive label according to claim 1, wherein the functional layer has a melting point in the range of 50 ° C. to 150 ° C. The pressure-sensitive adhesive label according to claim 1, wherein the functional layer has an adhesion amount in a range of 0.3 gf / m ^{2 to 2} gf / m ² .   The adhesive label as described in any one of Claims 1-3 which has a barrier layer between the said base material and the said adhesion layer.   The pressure-sensitive adhesive label according to claim 4, wherein the barrier layer contains a water-soluble polymer material.   The pressure-sensitive adhesive label according to claim 5, wherein the water-soluble polymer material contains a water-soluble acrylic resin.   The pressure-sensitive adhesive label according to claim 6, wherein the water-soluble acrylic resin is contained in the barrier layer in a range of 10 wt% to 40 wt%. The pressure-sensitive adhesive label according to any one of claims 4 to 7, wherein the barrier layer is formed in a range of 0.5 gf / m ^{2 to 5} gf / m ² .   The pressure-sensitive adhesive label according to claim 1, wherein the functional layer contains an inorganic filler.   The pressure-sensitive adhesive label according to claim 1, wherein the base material has a heat-sensitive recording layer recorded on the recording surface by heating. An adhesive layer forming step of forming an adhesive layer on the side opposite to the recording surface of the substrate;
An application step of applying a solution containing any of a material mainly composed of wax, a material mainly composed of an ethylene-vinyl acetate copolymer, and a material mainly composed of acrylic to the adhesive layer. Label manufacturing method.   The conveyance part which conveys the adhesive label of Claim 1, the heating part which heats the said functional layer, forms an opening part, exposes the said adhesion layer, and the control part which controls the said conveyance part and the said heating part A label issuing device.   The label issuing apparatus according to claim 12, wherein the recording surface of the adhesive label is recorded by heating.