JP2004001287A - Non-separable thermosensitive recording label, label continuum and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-separable thermosensitive recording label in which the phenomenon of sticking to a thermal head does not occur even if a printer performs printing, a non-separable thermosensitive recording label continuum in which even if there is no release paper, a release layer has releasability from a pressure-sensitive adhesive layer for joining the release layer and even if the printer performs printing, the phenomenon of sticking to the thermal head does not occur, and a method for manufacturing the label continuum. <P>SOLUTION: In the non-separable thermosensitive recording label with which a thermosensitive coloring layer and a release layer are stached on one side of a base and an adhesive layer on the other side of the base, the release layer is formed from an emulsion type silicone resin, sticking is prevented. The label continuum is provided. The method for manufacturing the label, etc., comprises a step of forming the release layer by heat hardening a coating layer containing an emulsion type silicone resin in which an addition agent is scattered in the presence of a curing catalyst. <P>COPYRIGHT: (C)2004,JPO

Description

【００２６】
試験項目の評価は、次のように行った。
▲１▼　プリンタ印字品質
評価としては、○、△、×の３段階評価を行った。
評価としての「○」は印字が良好に行われている状態を表している。
評価としての「△」は少し印字のかすれが見受けられる。
評価としての「×」は印字のかすれ、欠落が発生している。
【００２７】
▲２▼　スティキング性
評価としては、○、△、×の３段階評価を行った。
評価としての「○」はスティックが認められないことを示す。
評価としての「△」はスティックが少し認められることを示す。
評価としての「×」はスティックが著しいことを示す。
【００２８】
表１より明らかなように、エマルジョン系のシリコーン樹脂を用いた（例１）が、スティック発生防止に効果があり、印字品質の向上をもたらすことを示している。
【００２９】
なお、この発明は前記例示に限定されることなく、種々変更することが可能である。
たとえば、図３図示ノーセパレータ型感熱記録ラベル連続体１０に示すように、感圧型接着剤層１８が、各ノーセパレータ型感熱記録ラベル１２の裏面の全面に形成されるようにするのではなく、各ノーセパレータ型感熱記録ラベルの周縁に一定幅をおいて感圧型接着剤層１８が存在しない帯状空白部を設けるようにしてもよい。
また、さらに、感圧型接着剤層１８の接着力を弱める減感剤、たとえばチタンホワイト等のような粉体を含む減感剤を各ノーセパレータ型感熱記録ラベル１２の周縁より一定の幅をおいて塗布し、各ノーセパレータ型感熱記録ラベル１２の周縁にわたって帯状の減感剤層が形成されるようにしてもよい。
【００３０】
【作用】
剥離層２０の剥離剤マトリックス２０ａとしてエマルジョン型のシリコーン樹脂を用いることにより、剥離剤マトリックス２０ａに添加剤がよく分散され、エマルジョン型シリコーン樹脂の結合が強固になるため、サーマルヘッドと剥離層２０の表面との接触が滑らかになり、サーマルヘッドの移動が滑らかに行われ、剥離層２０の対サーマルヘッドマッチング性が向上する。
このことが、スティックの発生防止に寄与しているものと考えられる。
【００３１】
【発明の効果】
この発明によれば、剥離紙がなくても剥離層が、それが接合する感圧型接着剤層に対し剥離性を有し、且つ、プリンタにて印字を行ってもサーマルヘッドに付着する現象が発生せず、ヘッドマッチング特性に優れたノーセパレータ型感熱記録ラベルおよびノーセパレータ型感熱記録ラベル連続体、並びにその製造方法を提供することができる。
【図面の簡単な説明】
【図１】この発明の一実施の形態であるノーセパレータ型感熱記録ラベル連続体の斜視図である。
【図２】この発明の一実施の形態であるノーセパレータ型感熱記録ラベル連続体の断面図解図ある。
【図３】図１図示例の別のラベルの一例を示す図解図である。
【符号の説明】
１０　　ノーセパレータ型感熱記録ラベル連続体
１２　　ノーセパレータ型感熱記録ラベル
１４　　ミシン目
１６　　基材
１８　　感圧型接着剤層
２０　　剥離層
２０ａ　剥離剤マトリックス
２０ｂ　添加剤
２２　　感熱発色層
２４　　保護層
２６　　印刷層
２８　　芯管[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a no-separator type thermosensitive recording label and a label continuum that do not require a release paper, and a method of manufacturing the same. In particular, for example, a no-separator type thermosensitive recording head for a printer that heat-colors a thermosensitive coloring layer and prints (prints). The present invention relates to a no-separator type thermosensitive recording label, a label continuum, and a method for producing the same, which can prevent a substance forming a surface layer of a recording label from adhering.
[0002]
[Prior art]
In a non-separator type thermal recording label without release paper, it is possible to use the no-separator type thermal recording label in a wound state by forming a layer with releasability on the surface of the no-separator type thermal recording label. Thus, a roll-shaped no-separator type thermal recording label can be obtained.
[0003]
[Problems to be solved by the invention]
In order to uniformly print on the thermosensitive coloring layer, the surface of the release layer is required to be smooth. However, if the surface of the release layer is too smooth, the interface between the thermal head and the interface of the release layer is required. Due to the interaction, the phenomenon that the surface layer of the no-separator type thermal recording label easily adheres to the thermal head has been observed.When printing is performed with a printer, the phenomenon that a substance having releasability adheres to the thermal head is observed. May occur.
Silicone resin exists as a material having releasability. The silicone resin is roughly classified into an emulsion system as an aqueous dispersion, a solvent system dispersed in a solvent such as an organic solvent, and a solventless system using no solvent.
When using the solvent-based silicone resin or the solvent-less silicone resin as a release agent matrix, the additive composed of an aqueous dispersion cannot be used as it is, but it is used after removing water by drying or the like, When the additives are dried, the well-dispersed additives agglomerate, so even if these are added to a solvent-based or solventless silicone resin, the problem is that the original effect cannot be exhibited. is there.
In addition, when a solvent-based silicone resin is used, it is necessary to volatilize the solvent.Since the silicone resin is easily charged with static electricity, it is necessary to consider the danger of explosion, and it is also necessary to volatilize harmful substances such as toluene. It can create a problem that must be done.
On the other hand, when a solventless silicone resin is used, there is an advantage that there is no need to volatilize a solvent, but since it is designed so that a solvent is not required, molecules are smaller than those of other silicone resins. It is small and may cause inadequate hardening.
[0004]
Therefore, the main object of the present invention is to eliminate the sticking between the no-separator type thermal recording label and the thermal head and prevent the phenomenon that the substance forming the release layer adheres to the thermal head even when printing is performed with a thermal printer. A non-separator type thermosensitive recording label that prevents and prevents sticking, and a substance that has a releasability from the adhesive layer on the back surface without a release paper and that forms a release layer even when printing is performed by a printer. The object of the present invention is to provide a no-separator type thermosensitive recording label continuum in which sticking is prevented by preventing the phenomenon of sticking to a thermal head, and a method for producing the same.
[0005]
[Means for Solving the Problems]
The present inventor adds a pigment, a lubricant, powder particles and the like to a silicone resin as a release agent matrix of a release agent layer, and such an additive is dispersed in a well-dispersed form of an aqueous dispersion such as an emulsion. When using a solvent-based or solvent-less silicone resin as a release agent matrix, there are many things to be supplied, and an aqueous dispersion additive such as an emulsion-based additive cannot be used, and an emulsion-based silicone resin is used as a release agent matrix. Also, in the case where an additive composed of an aqueous dispersion is used, it is not necessary to dry the aqueous dispersion, and in view of the fact that it can be used as it is, focusing on emulsion silicone resins, as a result of earnest research, the present invention Is reached.
The non-separator type thermosensitive recording label and label continuum according to claim 1 of the present invention have a thermosensitive coloring layer and a release layer laminated on one surface of a substrate, and an adhesive layer provided on another surface of the substrate. In the no-separator type thermosensitive recording label, the release layer is formed by dispersing an additive in a release agent matrix composed of an emulsion type silicone resin so as to prevent sticking, and the release agent matrix is heated in the presence of a curing catalyst. A non-separator type thermosensitive recording label and a label continuum, which are cured.
The non-separator type thermosensitive recording label and the label continuous body according to claim 2 of the present invention are characterized in that the emulsion type silicone resin is a condensation type silicone resin and / or an addition type silicone resin. It is a no-separator type thermosensitive recording label and label continuum of the description.
The method for producing a non-separator type thermosensitive recording label and label continuum according to claim 3 of the present invention is characterized in that a thermosensitive coloring layer and a release layer are laminated on one surface of a base material, and an adhesive layer is formed on another surface of the base material. A method for producing a no-separator type thermosensitive recording label and label continuum, which is provided, wherein an application layer containing an emulsion type silicone resin in which an additive is dispersed is heated and cured in the presence of a curing catalyst, A method for producing a no-separator type thermosensitive recording label and a label continuous body, characterized by forming a release layer.
A method for producing a no-separator type thermosensitive recording label and a label continuous body according to a fourth aspect of the present invention is characterized in that the emulsion type silicone resin is a condensation type silicone resin and / or an addition type silicone resin. Item 4. A method for producing a no-separator type thermosensitive recording label and a label continuous body according to Item 3.
[0006]
The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments of the present invention with reference to the accompanying drawings.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a perspective view of a continuous body of a non-separator type thermal recording label according to an embodiment of the present invention, and FIG. 2 is a cross section of the continuous body of a non-separator type thermal recording label according to an embodiment of the present invention. FIG.
The continuous body of the non-separator type thermosensitive recording label 10 is a long one in which a plurality of the no-separator type thermosensitive recording labels 12 are continuously formed, and is formed at the boundary of each of the no-separator type thermosensitive recording labels 12. The sheet is cut at each perforation 14 and used as one heat-sensitive recording label.
In the non-separator type thermosensitive recording label continuous body 10, a pressure-sensitive adhesive layer 18 made of a pressure-sensitive adhesive is formed on the back surface of a long base material 16, and a release layer 20 is formed on the front side. .
Further, a thermosensitive coloring layer 22 is formed below the release layer 20 on the surface of the substrate 16, and a protective layer 24 for protecting the thermosensitive coloring layer 22 is usually formed on the surface of the thermosensitive coloring layer 22. ing.
Further, usually, a printed layer 26 is formed on a part of the surface of the protective layer 24 below the release layer 20 and covered with the release layer 20.
Furthermore, an undercoat layer may be formed between the base material 16 and the pressure-sensitive adhesive layer 18 and / or between the base material 16 and the thermosensitive coloring layer 22.
[0008]
As shown in FIG. 1, before the separator-free thermosensitive recording label continuum 10 is separated and used as the separator-free thermosensitive recording label 12, the release layer 20 side and the pressure-sensitive adhesive layer are separated. 18 is wound in a roll shape on the core tube 28 so as to be bonded and temporarily attached. When the no-separator type thermosensitive recording label continuous body 10 is used, it is unwound by the action of the release layer 20. The pressure-sensitive adhesive layer 18 can be used so as to be separated into the no-separator type heat-sensitive recording labels 12 and adhere to other objects.
Further, in the continuous body 10 of the non-separator type thermosensitive recording label, perforations 14 are formed. Each perforation 14 is formed at the boundary of each no-separator type thermal recording label 12 that constitutes the no-separator type thermal recording label continuum 10. The separation of each no-separator type thermal recording label 12 is facilitated.
[0009]
The long base material 16 can be cut with a machine tool such as a hand or a cutter such as a plastic film or sheet of paper, synthetic paper, cellophane, polystyrene, or polyethylene terephthalate, or an aluminum foil. Desirably, it is a material.
The pressure-sensitive adhesive layer 18 formed on the back surface of the base material 16 is used to give each non-separator type thermosensitive recording label an adhesive force for adhering to another object. A known adhesive such as a system adhesive is used.
[0010]
The thermosensitive coloring layer 22 formed on the surface of the substrate 16 is formed by applying and drying a thermosensitive coloring composition containing a mixture of a leuco dye, an acidic substance, a binder and the like.
In this case, as the leuco dye, for example, crystal violet lactone, 3-indolino-3-P-dimethylaminophenyl-6-dimethylaminophthalide, 3-diethylamino-7-chlorofluoran, 2-diethylamino-7-cyclohexyl Aminofluoran, 3-diethylamino-5-methyl-7-t-butylfluoran, 3-diethylamino-6-methyl-7-anilinofluoran, 3-diethylamino-6-methyl-7-p-butylanilino Fluoran and the like.
[0011]
Examples of the acidic substance include 2,2-bis (4'-oxyphenyl) propane, 4-phenylphenol, 4-hydroxyacetophenone, 2,2'-dihydroxydiphenyl, and 2,2'-methylenebis (4- Methyl-6-t-butylphenol), 4,4'-isopropylidenediphenol, 4,4'-isopropylidenebis (2-chlorophenol), 4,4'-isopropylidenebis (2-methylphenol), 4 , 4'-ethylenebis- (2-methylphenol), 4,4'-thiobis (6-t-butyl-3-methylphenol) and the like.
[0012]
Further, examples of the binder include polyvinyl alcohol, methoxycellulose, hydroxyethylcellulose, carboxymethylcellulose, polyacrylamide, polyacrylic acid, starch, gelatin, polystyrene, and vinyl chloride-vinyl acetate copolymer.
The thermosensitive coloring layer 22 can be colored by heating it with a thermal head of a printer or the like.
[0013]
When the protective layer 24 is formed to protect the thermosensitive coloring layer 22, for example, the protective layer 24 may include a resin such as polyvinyl alcohol or an acrylic resin, and the thermosensitive coloring layer 22 is excellent in chemical resistance, plasticizer resistance and the like. It is formed so that.
[0014]
When the printing layer 26 is formed, the printing layer 26 is formed by printing using a general printing ink by a flat plate, letterpress, offset printing, or another known printing method. In particular, in consideration of the influence on the thermosensitive coloring layer 22, for example, an adverse effect such as a so-called fogging phenomenon, it is preferable to use an ultraviolet curable ink or the like.
[0015]
The undercoat layer is formed to effectively utilize the heat of the thermal head, to prevent background fogging and fading of the thermosensitive coloring layer 22, and the like.
The undercoat layer includes, for example, a resin such as an aqueous resin such as a latex such as SBR and NBR, polyvinyl alcohol, and an acrylic resin, and may further include a fine particle material such as calcium carbonate and silica, and an elastic material.
[0016]
The release layer 20 is usually formed by applying a dispersion of an additive to a release agent matrix 20a containing an emulsion type silicone resin as a main component and heating and curing in the presence of a curing catalyst.
As the additive, for example, one composed of an emulsion-based aqueous dispersion is preferably used.
In the release layer of the present invention, the additives are well dispersed in the release layer matrix, and the release agent matrix is firmly bonded, and as a result, when printing with the thermal head, sticking of the thermal head is prevented, and high quality printing is obtained. Can be
[0017]
As the silicone resin used as the release agent matrix 20a of the present invention, an emulsion silicone resin is used.
When an emulsion-based silicone resin is used, water must be volatilized. However, even if the additive is an aqueous dispersion, the aqueous dispersion can be used as it is without drying, and the emulsion-based dispersion can be used in a state where the additive is well dispersed. By being mixed with the silicone resin and synergistic effect with the emulsion silicone resin, the original effect of the additive can be well exhibited and a release layer having excellent head matching characteristics with the thermal head can be formed.
As an emulsion silicone resin, a silicone resin containing polydimethylsiloxane containing silanol groups as a base polymer and a polymethylhydrogensiloxane etc. as a cross-linking agent is heated in the presence of a catalyst such as organotin to form a condensation reaction. A condensation type silicone resin to be cured, and a silicone resin containing a polydimethylsiloxane containing a vinyl group as a base polymer and a polymethylhydrogensiloxane serving as a crosslinking agent are cured by an addition reaction in the presence of a catalyst such as platinum. An addition type silicone resin or the like is used.
[0018]
If the release agent matrix 20a of the release layer 20 forming the outermost layer of the no-separator type thermal recording label 12 is, for example, a silicone resin that cures by reacting, it can be sufficiently cured by adding a catalyst. When the continuous thermal recording label body 10 is wound, even if the adhesive layer 18 formed on the back surface of the base material 16 and the peeling layer 20 are joined, the peeling layer 20 has sufficient peelability and is rewound. It becomes possible.
The catalyst is not particularly limited as long as it cures the thermosetting silicone resin. For example, an organotin, platinum catalyst or the like is used.
The thickness of the release layer 26 is generally 1 μm to 2 μm.
[0019]
Various materials can be contained in the emulsion type silicone resin as the release agent matrix 20a. For example, a lubricant such as a fatty acid or a metallic soap is added to the release layer 20 to impart lubricity to the release layer 20, and powder particles such as colloidal silica or alumina are added to the release layer 20 to strengthen the release layer 20 or the like. . For example, the following various additives can be used.
_{PbO, Fe 3 O 4, Mn} 3 O 4, GeO 2, TeO 2, CuO, ZnO, BaTiO 3, SrTiO 3, BaZrO 3, Ba (Ti 1-x Zr x) O 3, Sr (Ti 1-x Zr _{x) O 3, (Ba 1} -x Sr x) TiO 3, MnFe 2 O 4, CoFe 2 O 4, NiFe 2 O 4, ZnFe 2 O 4, (Mn 1-x Zn x) Fe 2 O 4, Al ₂ O ₃ , MgO, In ₂ O ₃ , BeO, Gd ₂ O ₃ , Eu ₂ O ₃ , Sm ₂ O ₃ , Nd ₂ O ₃ , La ₂ O ₃ , Cr ₂ O ₃ , BaSnO ₃ , SrSnO ₃ , CaSnO _{3, MgSnO 3, SrGeO 3,} SrTeO 3, ZrO 2, TiO 2, Nb 2 O 5, Ta 2 O 5, CaO, Ga 2 O 3, SiO 2, Y 2 O 3, Fe 2 O ₃ , FeOOH, AlOOH, CaCO ₃ , Ba (SO ₄ ) ₂ , Al (OH) ₃ , kaolin, montmorillonite, hydroxyapatite, navy blue, ultramarine, talc, clay, diatomaceous earth, organized bentonite, polytetrafluoroethylene, sodium Terephthalate, polyurea, calcium soap, lithium soap, molybdenum disulfide, tungsten disulfide, graphite, boron nitride, gold, silver, cobalt, iron, nickel, platinum, palladium, rhodium, polyethylene, polypropylene, nylon, polyimide, polycarbonate, polyacetal , Molybdenum trisulfide, graphite fluoride, calcium fluoride, zinc stearate, cobalt stearate, stearic acid, potassium palmitate, sodium palmitate, palmitic acid, olein Zinc, potassium oleate, sodium oleate.
[0020]
When an emulsion type silicone resin is used as the release agent matrix 20a and, for example, an additive which is an aqueous dispersion such as an emulsion type is added to the silicone resin, a dispersion in which the additive is well dispersed in the emulsion type silicone resin is obtained. As additives for this purpose, for example, aqueous dispersions such as zinc stearate emulsion, colloidal silica, alumina colloid dispersion, zirconia monodispersion and titania monodispersion are preferably used.
The aqueous dispersion is produced using, for example, a sol-gel method, a colloid chemistry method, a metal alkoxide method, a precipitation method, an inorganic hydrolysis method, a chelation method, a microemulsion method, an emulsion polymerization method, a seed polymerization method, or the like.
[0021]
The content of the additive 20b mixed into the release layer 20 is preferably from 10 parts by weight to 75 parts by weight per 100 parts by weight of the release agent matrix 20a. If the amount is less than 10 parts by weight, the printing quality of the printer may be deteriorated. If the amount is more than 75 parts by weight, when the continuous separator 10 is wound as a no-separator type thermosensitive recording label 10, it is difficult to peel off from the pressure-sensitive adhesive layer 18. This may result in
[0022]
Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the examples.
[0023]
[Examples 1-3]
Ricoh's 130LHB thermal paper on which the thermosensitive coloring layer 22 was formed was used as the base material 16, and an acrylate-based pressure-sensitive adhesive was used as the pressure-sensitive adhesive 18.
A protective layer forming coating liquid made of polyvinyl alcohol is applied to the surface on the side of the base material 16 on which the thermosensitive coloring layer 22 is formed, so that the coating amount after drying is 1 g / m ² to form the protective layer 24. did.
Thereafter, the release layer 20 was provided on the protective layer 24 as follows.
(Example 1) The release layer 20 is composed of 100 parts by weight of a thermosetting silicone resin (X-52-195 (emulsion type) of Shin-Etsu Chemical), 6 parts by weight of a curing catalyst (CAT-PM-10 of Shin-Etsu Chemical), and an additive. A release layer-forming coating liquid consisting of 15 parts by weight of zinc stearate (Chukyo Yushi Hydrine Z-7-30 (emulsion type)) is applied so that the coating amount after drying is 1 g / m ^2, and thereafter, By heating with a heat curing device, the release agent matrix 20a was cured, and the release layer 20 was formed.
An acrylic ester-based pressure-sensitive adhesive, which is a pressure-sensitive adhesive, is applied to the surface of the substrate 16 opposite to the surface on which the release layer 20 is formed, so that the applied amount after drying is 20 g / m ^2. Then, a pressure-sensitive adhesive layer 18 was formed.
(Example 2) The release layer 20 was composed of 100 parts by weight of a thermosetting silicone resin (KS774 (Solvent) of Shin-Etsu Chemical), 2.5 parts by weight of a curing catalyst (CAT-PL-3 of Shin-Etsu Chemical), and stearin as an additive. A release layer forming coating liquid consisting of 15 parts by weight of zinc acid (Nippon Yushi's zinc stearate (powder type)) is applied so that the coating amount after drying is 1 g / m ^2, and then heated with a heat curing device. Thereby, the release agent matrix 20a was cured, and the release layer 20 was formed.
An acrylic ester-based pressure-sensitive adhesive, which is a pressure-sensitive adhesive, is applied to the surface of the substrate 16 opposite to the surface on which the release layer 20 is formed, so that the applied amount after drying is 20 g / m ^2. Then, a pressure-sensitive adhesive layer 18 was formed.
(Example 3) 100 parts by weight of a thermosetting silicone resin (BY24-468C from Toray Dow Corning (solventless system)) and 10 parts by weight of a curing catalyst (BY24-453 from Toray Dow Corning) were added. A release layer forming coating liquid consisting of 15 parts by weight of zinc stearate (hydrin Z-7-30 of Chukyo Yushi (dried emulsion type)) was used so that the coating amount after drying was 1 g / m ^2. Then, by heating with a heat curing device, the release agent matrix 20a was cured to form the release layer 20.
An acrylic ester-based pressure-sensitive adhesive, which is a pressure-sensitive adhesive, is applied to the surface of the substrate 16 opposite to the surface on which the release layer 20 is formed, so that the applied amount after drying is 20 g / m ^2. Then, a pressure-sensitive adhesive layer 18 was formed.
With respect to the amounts of the curing catalysts of (Example 1) to (Example 3), the amounts considered to be optimal were adopted as the amounts of the respective systems.
[0024]
For (Example 1) to (Example 3), color printing was performed on a sample with a direct thermal printer DP-360 (manufactured by Teraoka Seiko) at a printing speed of 80 mm / sec and a duty of 49%, and the printing quality and sticking property of the printer were performed. As a result, the results shown in Table 1 were obtained.
[0025]
[Table 1]

[0026]
Evaluation of test items was performed as follows.
{Circle around (1)} As a printing quality evaluation of the printer, three grades of ○, Δ, and × were evaluated.
“○” as an evaluation indicates a state where printing is performed well.
As for the evaluation of “Δ”, a slight blurring of the print is observed.
“X” as an evaluation indicates that printing is blurred or missing.
[0027]
{Circle around (2)} As the sticking property evaluation, a three-stage evaluation of ○, Δ, and × was performed.
“O” as an evaluation indicates that no stick is recognized.
"△" as an evaluation indicates that a little stick is recognized.
“X” as an evaluation indicates that the stick is remarkable.
[0028]
As is clear from Table 1, it is shown that the use of the emulsion-based silicone resin (Example 1) is effective in preventing the occurrence of stick and improves the print quality.
[0029]
The present invention is not limited to the above-described example, and can be variously modified.
For example, as shown in the continuous body 10 of the no-separator type thermal recording label illustrated in FIG. 3, the pressure-sensitive adhesive layer 18 is not formed on the entire back surface of each of the no-separator type thermal recording labels 12. A band-shaped blank portion in which the pressure-sensitive adhesive layer 18 does not exist may be provided at a predetermined width around the periphery of each no-separator type thermal recording label.
Further, a desensitizing agent for weakening the adhesive force of the pressure-sensitive adhesive layer 18, for example, a desensitizing agent containing a powder such as titanium white or the like, has a certain width from the periphery of each no-separator type thermosensitive recording label 12. Then, a band-shaped desensitizer layer may be formed over the periphery of each no-separator type thermal recording label 12.
[0030]
[Action]
By using an emulsion type silicone resin as the release agent matrix 20a of the release layer 20, the additives are well dispersed in the release agent matrix 20a, and the bond between the emulsion type silicone resin becomes strong. The contact with the surface becomes smooth, the movement of the thermal head is performed smoothly, and the matching property of the release layer 20 with the thermal head is improved.
This is considered to contribute to prevention of stick generation.
[0031]
【The invention's effect】
According to the present invention, the phenomenon that the release layer has a release property with respect to the pressure-sensitive adhesive layer to which the release layer is bonded even without the release paper, and adheres to the thermal head even when printing is performed by a printer. The present invention can provide a no-separator type thermal recording label, a non-separator type thermal recording label continuum, and a method for producing the same, which do not generate and have excellent head matching characteristics.
[Brief description of the drawings]
FIG. 1 is a perspective view of a continuous body of a non-separator type thermosensitive recording label according to an embodiment of the present invention.
FIG. 2 is an illustrative sectional view of a continuous body of a non-separator type thermosensitive recording label according to an embodiment of the present invention.
FIG. 3 is an illustrative view showing one example of another label of the example shown in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 No-separator type thermosensitive recording label continuum 12 No-separator type thermosensitive recording label 14 Perforation 16 Substrate 18 Pressure-sensitive adhesive layer 20 Release layer 20a Release matrix 20b Additive 22 Thermosensitive coloring layer 24 Protective layer 26 Printing layer 28 Core tube

Claims (4)

In a no-separator type thermosensitive recording label in which a thermosensitive coloring layer and a release layer are laminated on one side of a base material and an adhesive layer is provided on the other side of the base material, the release layer has an emulsion so as to prevent sticking. A non-separator type thermosensitive recording label and label continuum, wherein an additive is dispersed in a release agent matrix made of a silicone resin, and the release agent matrix is heat-cured in the presence of a curing catalyst. 2. The no-separator type thermosensitive recording label and label continuum according to claim 1, wherein the emulsion type silicone resin is a condensation type silicone resin and / or an addition type silicone resin. A method for producing a non-separator type thermosensitive recording label and label continuum in which a heat-sensitive coloring layer and a release layer are laminated on one side of a base material and an adhesive layer is provided on another side of the base material, A method for producing a non-separator type thermosensitive recording label and a label continuous body, comprising heating and curing an application layer containing an emulsion type silicone resin in which is dispersed in the presence of a curing catalyst to form a release layer. The method for producing a non-separator type thermosensitive recording label and label continuum according to claim 3, wherein the emulsion type silicone resin is a condensation type silicone resin and / or an addition type silicone resin.

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