JP3423122B2 - Label continuum and method for producing the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label continuous body in which a plurality of labels are continuously formed and a method for manufacturing the same, and in particular, it does not have a so-called release paper suitable for use as a price tag or a bar code label. The present invention relates to a non-separable label continuum and a manufacturing method thereof.

[0002]

2. Description of the Related Art Conventionally, a label having no release paper, which is a so-called non-separation type, has a pressure-sensitive adhesive layer made of a heat-resistant polyethylene having a delayed tack type formed on a back surface thereof. In the case of such a non-separable label having a so-called hot melt type pressure-sensitive adhesive layer formed thereon, it can be used by being rolled up without using release paper. That is, before heating and melting the heat-adhesive adhesive to impart pressure sensitivity, the pressure-sensitive adhesive layer does not have adhesiveness, so that even if the label is rolled up, the rolled portion does not adhere.

[0003]

However, such a conventional non-separable label requires a large-scale production facility, resulting in a large capital investment. In addition, since heat must be applied when the heat-adhesive adhesive is activated, it is necessary to select a material with excellent heat resistance, such as polyethylene, as the base material of the label. Cannot be used. In addition, as the base material of the label,
The selection range of the label base material is extremely limited, for example, it is necessary to select one that is not affected by the components such as the solvent contained in the adhesive layer.

Further, in order to manufacture such a non-separable label, conventionally, a wide or large-sized label base material has been used in order to increase the production efficiency by taking a large number of pieces. That is, in this case, a plurality of label portions are formed in parallel in the width direction of a wide or large-sized label base material, and a label continuous body is cut in a final step by a slitter or the like into a plurality of label continuous bodies. To manufacture. Therefore, it is suitable for small- lot, large-lot production in which a large number of label continuous bodies having the same printing layer are produced. However, for high-mix, small-lot production that requires detailed changes in printing specifications,
It was difficult to adapt due to reasons such as production efficiency and economic efficiency.
Further, in order to produce a wide variety of small lots, it is conceivable to form a label continuum using a narrow label base material from the beginning. However, in this case, there was a problem that the production efficiency was poor.

Therefore, the present invention provides a label continuum and a method for producing the same, which can broaden the selection range of the label base material and the pressure-sensitive adhesive layer and efficiently perform the production of small lots of various kinds. Is.

[0006]

Means for Solving the Problems] label continuum that written in this invention, elongated label substrate, pressure-sensitive adhesive layer formed on the back surface of the label substrate, formed on the surface of the label substrate The heat-sensitive color forming layer, formed on the surface of the heat-sensitive color forming layer, a protective layer for protecting the heat-sensitive color forming layer, when the label substrate is wrapped, so as to face the pressure-sensitive adhesive layer, release agent layer formed on the surface of the protective layer, and said a label continuum including a print layer having excellent peelability formed on the surface of the release agent layer, the release agent layer is a silicone resin as the release agent A label continuum characterized in that the printing layer contains a printing ink containing a silicone resin as a vehicle.

Further, the printed layer, in that it has excellent release properties, is formed by an ink comprising a colorant dispersed vehicle comprising a silicone resin, and the vehicle, according to claim 1
A label continuum described.

Further, the protective layer is preferably formed of a water-soluble resin such as polyvinyl alcohol, from the viewpoint of easy handling and protective performance.

[0009] The manufacturing method of a label strip in the present invention, thermal Step 1, the surface of coating an adhesive on the surface having a peel <br/> releasability of the process sheet having a surface having release properties comprising a coloring layer, step 2 Conform overlapping the rear surface of the elongated label substrate having a surface to be bonded by transferring the pressure-sensitive adhesive on the back surface and the adhesive of said process sheet, the surface of the label substrate in, step 3, step 4, print layer excellent in exfoliation resistance to the surface of the release agent layer to form the exfoliation agent layer on the surface of the protective layer to form a protective layer for protecting the heat sensitive color forming layer step 5 to form the, so step 6 is peeled off only the process sheet from the adhesive that has spread to the rear surface of the label substrate, and with the release agent layer and the pressure-sensitive adhesive layer is temporarily attached to face the label step 7 superimposing winding a substrate Only including, in order of the step number, or, vinegar
This is a method for manufacturing a label continuum, which is performed in the order of step numbers 1, 2, 3, 4, 6, 5, and 7 .

Further, in the above-described method for producing a label continuum, in step 2 , after the back surface of the wide and long label base material and the adhesive layer of the process sheet are superposed,
You may make it cut | disconnect to an appropriate width.

[0011]

[Action] label strip according to the present invention comprises a viscous Chakuzaiso the release agent layer is temporarily attached to face, it is held stacked up into a roll. Since only been temporarily attached to the tacky Chakuzaiso the release agent layer, when used as a label by cutting the label continuum by a predetermined length, it is possible to rewind the label continuum. A printing layer for displaying characters, figures, symbols, etc. is formed on the surface of the release agent layer. When the label continuum is rolled up, the printing layer will be interposed between the release agent layer and the pressure-sensitive adhesive layer. Even when rewound, the adhesive does not remain on the surface of the printing layer and the printing layer does not peel off. Then, the labels can be cut and used one by one from the unwound label continuum. This label is attached to an adherend by an adhesive layer formed on the back surface of the label substrate. Further, a thermosensitive coloring layer is provided on the surface of the label continuum. Characters, figures, symbols and the like can be heat-sensitive printed on the label surface by coloring the heat-sensitive color developing layer with a thermal printer. By providing a heat-sensitive color-developing layer and performing heat-sensitive printing immediately before applying the label, the print content can be changed for each label. The heat-sensitive coloring layer has a protective layer for oil, solvent,
Protected from a plasticizer, etc., it is possible to prevent the color from disappearing or from developing without permission.

In another label continuous body, a print layer is formed on the surface of the protective layer, and a release agent layer is formed on the surface of the protective layer so as to cover the print layer. This print layer is
Since it is formed of a material having excellent releasability, it has good compatibility with the release agent layer, and the release agent layer can be uniformly formed on the surface of the label continuum. Therefore, when the label continuum is rewound, the release agent layer is not peeled off from the print layer or the print layer is not damaged.

Furthermore, in the manufacturing method of the continuous label strip according to the present invention, in step 1, an adhesive is applied to the surface having releasability of the process sheet having a release property.
This pressure-sensitive adhesive should be the pressure-sensitive adhesive layer of the label continuum. In step 2 , a long label substrate having a thermosensitive coloring layer on the front surface and a surface for transferring and adhering an adhesive to the back surface is prepared. In step 2 , the back surface of the label base material and the adhesive of the process sheet are overlapped. By overlapping, the pressure-sensitive adhesive temporarily attached to the surface of the process sheet adheres to the back surface of the label substrate. In Step 3 , a protective layer for protecting the thermosensitive coloring layer is formed on the surface of the label base material. The protective layer protects the thermosensitive coloring layer from oils, solvents, plasticizers, etc., and prevents the coloring from disappearing or from developing without permission.
In step 4 , a release agent layer is formed on the surface of the protective layer. By providing the release agent layer, the non-separable label continuous body having no release paper can be rolled up and held so as to be rewound. In step 5 , a print layer having excellent releasability is formed on the surface of the release agent layer. Since the print layer has excellent releasability, even if the print layer is formed on the surface of the release agent layer, the releasability at the time of rewinding the label continuum is not hindered. In step 6 , only the process sheet is peeled off from the adhesive transferred to the back surface of the label substrate. Therefore, the pressure-sensitive adhesive applied to the front surface of the process sheet is transferred to the back surface of the label substrate, and is formed as a pressure-sensitive adhesive layer of the label continuum. In step 7 , the label base material is rolled up so that the release agent layer and the adhesive layer face each other and are temporarily attached. In this way, the label continuum is completed in a state of being rolled and held in a roll shape.

In another method for manufacturing a label continuum,
After forming the print layer on the surface of the protective layer, the release agent layer is formed so as to cover the print layer.

Further, in the above-described method for producing a label continuum, in step 2 , a wide and long label base is formed.
After stacking the back surface of the material and the pressure-sensitive adhesive layer of the process sheet, and then cutting into an appropriate width, step
In the steps up to 2 , a wide or large-sized label base material can be used. Then, in step 2 , for example, a label continuum in which the label base material and the process sheet are temporarily attached can be mass-produced and prepared at once by cutting into a suitable width with a slitter or the like. . Then, by individually printing the label continuum, it is possible to improve the efficiency of multi-product small lot production.

[0016]

According to the label continuum of the present invention, since the printing layer has excellent releasability, the label continuum can be wound and unwound even after the pressure-sensitive adhesive layer and the printing layer are formed. it can. Therefore, using a wide or large-sized label base material, the pressure-sensitive adhesive layer, the thermosensitive coloring layer, the protective layer and the release agent layer are formed in advance, and then cut with a slitter or the like to form a narrow label continuous body. It is possible to form the print layer individually. Therefore, according to the structure of the label continuum of the present invention, it is possible to efficiently and economically produce a large variety of small lots.

Further, according to another label continuum, since the printed layer has excellent releasability, it is well compatible with the release agent layer, and the release agent layer can be uniformly formed on the surface of the label continuum. .

Furthermore, according to the method for producing a label continuum according to the present invention, it is possible to consistently produce a label continuum having a multi-layer structure, and to rationalize the production line. Further, since the pressure-sensitive adhesive layer is formed on the back surface of the label substrate by transferring from the process sheet, the pressure-sensitive adhesive layer can be formed on the back surface of the label substrate at room temperature. Therefore, an ultra-thin tape having relatively low heat resistance can be selected as the label base material. Further, it becomes possible to form the pressure-sensitive adhesive layer on the label base material on which the thermosensitive coloring layer has already been formed. further,
It is possible to use any printer such as a transfer foil printing type printer that requires relatively high heat. In addition, since the solvent of the pressure-sensitive adhesive in the emulsion state before forming the pressure-sensitive adhesive layer is removed before transferring, the range of selection of the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer is irrespective of the property of the label substrate. Can be expanded. Furthermore, since the process sheet can be used many times, it is possible to reuse resources without becoming waste.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments of the invention with reference to the drawings.

[0020]

1 is a perspective view showing a label continuum which is an embodiment of the present invention, and FIG. 2 is a line II thereof.
It is a sectional view in -II. FIG. 3 is an illustrative view showing a first half step of the example of the method for manufacturing the label continuum shown in FIG. 1, and FIG. 4 is an illustrative view showing the latter half step.

The label continuum 10 of this embodiment comprises a plurality of labels 12 continuously formed in a strip shape. As shown in FIG. 1, before the label continuum 10 is used as the label 12, the label base material 14 is roll-shaped so that the release agent layer 22 side and the adhesive layer 16 face each other and are temporarily attached. It is rolled up. When the label 12 is used, the label continuum 10 is rewound in a substantially straight line to form a plurality of labels 12.
Can be cut at their respective boundaries to be used as one label 12 each.

As shown in FIG. 2, the label continuum 10 is
It includes a long strip-shaped label substrate 14. The pressure-sensitive adhesive layer 16 is formed on the back surface of the label substrate 14 by transferring from a process sheet described later. In addition, the label base material 14
A thermosensitive coloring layer 18 is formed on the surface of the. The thermosensitive coloring layer 18 can be colored by heating with a thermal head of a thermal printer. Thermosensitive coloring layer 1
The surface of 8 has a protective layer 20 through which the thermosensitive coloring layer 18 can be seen.
Is formed. The protective layer 20 is for protecting the thermosensitive coloring layer 18 from a solvent, an oil, a plasticizer and the like so that the coloring is not erased or the coloring is not performed by itself. Protective layer 2
On the surface of 0, the release agent layer 2 through which the thermosensitive coloring layer 18 can be seen
2 is formed. The release agent layer 22 is, as shown in FIG.
This is for winding the label continuum 10 so that it can be rewound. Then, on the surface of the release agent layer 22, the label 1
A print layer 24 for displaying information such as characters, figures, and symbols is formed on the surface of the second layer 2. The print layer 24 is for each label 1.
The label continuous body 10 is intermittently formed at regular intervals in the longitudinal direction of the label continuous body 10 so as to form the display portion of each label 12 with two boundaries.

In this embodiment, the long strip-shaped label substrate 14 can be selected from plastic films or sheets such as cellophane, polystyrene and polyester, paper, synthetic paper, or long strips such as aluminum foil. In this case, in order to cut the continuous strip-shaped continuous label into the labels 12, it is necessary to use a material that can be cut by a machine such as a hand or a cutter. Alternatively, perforations (not shown) such as perforations may be formed at predetermined intervals so that the label 12 can be cut into predetermined strips.

The pressure-sensitive adhesive layer 16 formed by transferring to the back surface of the label base material 14 is for giving an adhesive force to each label 12, and is known, for example, an acrylic copolymer resin, a rubber adhesive or the like. An adhesive is used.

The thermosensitive coloring layer 18 formed on the surface of the label substrate 14 is formed by applying a thermosensitive coloring agent containing a mixture of a transparent or monochromatic leuco dye, an acidic substance and a binder and drying it. It In this case, examples of the leuco dye include crystal violet lactone, 3-indolino-3-P-dimethylaminophenyl-6-dimethylaminophthalide, 3-diethylamino-7-chlorofluorane, and 2-diethylamino-7-.
Cyclohexylaminofluorane, 3-diethylamino-5-methyl-7-t-butylfluorane, 3-diethylamino-6-methyl-7-anilinofluorane, 3-
Diethylamino-6-methyl-7-P-butylanilinofluorane or the like can be selected.

As the acidic substance, for example, 2,
2-bis (4'-oxyphenyl) propane, 4-phenylphenol, 4-hydroxyacetophenone, 2,
2'-dihydroxydiphenyl, 2,2'-methylenebis (4-methyl-6-t-butylphenol), 4,
4'-isopropylidenediphenol, 4,4'-isopropylidene bis (2-chlorophenol), 4,4 '
-Isopropylidene bis (2-methylphenol),
4,4'-ethylenebis (2-methylphenol),
4,4'-thiobis (6-t-butyl-3-methylphenol) and the like can be selected.

Further, as the binder, for example, polyvinyl alcohol, methoxy cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, polyacrylamide, polyacrylic acid, starch, gelatin,
A water-soluble polymer such as polystyrene or vinyl chloride-vinyl acetate copolymer or an aqueous emulsion can be selected.

The protective layer 20 formed on the surface of the thermosensitive coloring layer 18 is formed of, for example, polyvinyl alcohol, methoxy cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, polyacrylamide, polyacrylic acid, starch, gelatin, polystyrene, vinyl chloride.
A water-soluble polymer such as a vinyl acetate copolymer or an aqueous emulsion can be selected.

The release agent layer 2 formed on the surface of the protective layer 20.
2 is formed by printing and applying a release agent made of, for example, a silicone resin, followed by curing. In this case, a material that can be cured at a temperature that does not affect the thermosensitive coloring layer 18 is preferable, and for example, an ultraviolet curable silicone resin or an electron beam curable silicone resin can be selected.

Printing layer 2 formed on the surface of release agent layer 22
No. 4 is formed by a printing ink formed by mixing a colorant and an additive with a vehicle containing a silicone resin having excellent peelability. The vehicle of this printing ink may be formed of a silicone resin alone, or may be formed by adding oil, resin, solvent, plasticizer or the like. By using the silicone resin as the vehicle, it is possible to obtain excellent releasability after the printing ink is dried and cured. As the silicone resin, it is preferable to use, for example, an ultraviolet curable type or an electron beam curable type. Further, as the color material, known materials such as inorganic or organic pigments or dyes may be used. Further, as the additive, known materials such as wax, dryer, surfactant, gelling agent, stabilizer and defoaming agent may be used. This printed layer 24 is
For example, it can be formed by printing by a known printing method such as planographic printing, letterpress printing or offset printing.

Next, an example of a method of manufacturing the label continuum 10 will be described with reference to FIGS. 3 and 4. First, the process sheet 26 is wound and prepared in a roll shape. The process sheet 26 is used only in the manufacturing process and does not remain in the completed label continuum 10. The process sheet 26 is, for example, paper,
It is formed in a long strip shape from a plastic film or sheet. The width of the process sheet 26 is formed so that a plurality of label continuous bodies 10 can be formed in parallel.
Then, a release agent such as a silicone resin or a fluorine resin is printed or applied on the surface of the process sheet 26 to form a release agent layer 26a having a release property.

Next, the release agent layer 26 of the process sheet 26
The pressure sensitive adhesive 2 is applied to the surface of a by the pressure sensitive adhesive applying device 100.
8 is applied. A so-called roller coater is used for this adhesive application device 100, and for example, two rollers 10 are used.
2a and 102b. The lower part of the roller 102a is immersed in the adhesive 28 stored in the pan 104.
The roller 102a is provided in contact with the roller 102b,
Further, the roller 102b is provided in contact with the surface of the process sheet 26. Therefore, the rollers 102a and 10
By rotating 2b, the pressure-sensitive adhesive 28 is applied to the surface of the release agent layer 26a of the process sheet 26 guided to that portion.

As the adhesive coating device, a coating device such as a gravure roll coater, a reverse roll coater or an air knife coater may be used, or a known printing machine such as a screen printing machine may be used. .

Then, the process sheet 26 on which the pressure-sensitive adhesive 28 is applied by printing is guided to the dryer 106 for drying the pressure-sensitive adhesive 28. The drier 106 dries the adhesive 28 printed and applied on the process sheet 26 to form the adhesive layer 16. The dryer 106 is selected according to the type of adhesive 28 used. For example,
When an adhesive containing a water-soluble resin such as EVA, vinyl acetate, or acrylic, or a solvent-based adhesive made of vinyl chloride, urethane, acrylic, or the like is used as the adhesive 28, a dryer such as a heater is used. To be Also, rubber type, EVA
A cooling machine is used when a hot melt adhesive of the system is used.

On the surface of the pressure-sensitive adhesive layer 16 of the process sheet 26 on which the pressure-sensitive adhesive layer 16 is formed as described above, the base paper to be the label base material 14 is laminated. The label base material 14 is formed in advance in the same width as the process sheet 26. A thermosensitive coloring layer 18 is previously formed on the surface of the label base material 14 opposite to the adhesive layer 16.

As described above, the process sheet 26 and the adhesive layer 1
6. The laminate 30 in which the label base material 14 and the thermosensitive coloring layer 18 are laminated is cut by a slitter 108 to preliminarily adjust the width before leading to the next printing process, and then rolled. Is wrapped around. The laminate 30 is guided to the subsequent step shown in FIG. 4 in a state of being rolled up in a roll shape.

The laminate 30 is mounted on the manufacturing apparatus shown in FIG. The laminate 30 is unwound from the edges to give the protective layer 2
It is guided to the protective agent coating device 110 for forming 0.
The protective agent coating device 110 includes a roller 112a and a roller 112b that face each other with the laminate 30 sandwiched therebetween. A supply roller 112c for supplying the protective agent 116 to the roller 112a is provided so as to contact the roller 112a and rotate in the opposite direction. Further, a supply roller 112d is provided so as to contact the supply roller 112c and rotate in the opposite direction. Below the supply roller 112d, a supply pan 114 for holding a protective agent 116 made of an aqueous solution of polyvinyl alcohol, for example.
Are placed. The lower part of the supply roller 112d is immersed in the protective agent 116 in the supply pan 114. Therefore, the supply rollers 112c and 112d, and the rollers 112a and 112a,
The protective agent 116 is applied to the surface of the thermosensitive coloring layer 18 of the laminate 30 to a predetermined thickness by rotating the 112 b.

Then, the laminate 30 coated with the protective agent 116 is moved to the dryer 120 including a heater, for example. The drying agent 120 dries the protective agent 116 in a temperature range in which the thermosensitive coloring layer 18 does not develop a color, and the protective layer 2
0 is formed.

Next, the laminate 30 is guided to a release agent coating device 130 for forming the release agent layer 22. The release agent coating device 130 includes a roller 132a and a roller 132b that face each other with the laminate 30 sandwiched therebetween. A supply roller 132c for supplying the release agent 136 to the roller 132a is provided so as to contact the roller 132a and rotate in the opposite direction. Further, the supply roller 132
The supply roller 132d is provided so as to come into contact with c and rotate in the opposite direction. A supply pan 134 for holding a liquid release agent 136 made of, for example, a mixture of an ultraviolet curable silicone resin and a photocurable catalyst is disposed below the supply roller 132d. Supply roller 13
The lower part of 2d is dipped in the stripper 136 in the supply pan 134. Therefore, the supply rollers 132c, 132d,
By rotating the rollers 132a and 132b respectively, the release agent 13 is applied to the surface of the protective layer 20 of the laminate 30.
6 is applied to a predetermined thickness.

Then, the laminate 30 coated with the release agent 136 is moved to the ultraviolet irradiation device 140 in order to cure the ultraviolet curing type silicone resin. The release agent 136 is dried and cured by the ultraviolet irradiation device 140 to form the release agent layer 22. When a material of a type different from the ultraviolet curable type is used as the release agent 136, an optimum drying / curing device is selected for those release agents.

Next, the laminate 30 is guided to the slitter 180. The laminate 30 is cut into predetermined widths by the slitter 180, divided into a plurality of laminates 30 ′ that are to be a label continuum, and subsequently wound in a roll shape. In this way, the laminate 30 ', which is the common portion of the label continuum 10, can be efficiently manufactured collectively.
The laminate 30 'can be stored and transported in a rolled state.

Then, each laminate 3 slit into a narrow width
0'is mounted in the printing device 150 for individually forming the printing layer 24. The printing device 150 includes a plate cylinder 152 a and an impression cylinder 1 that face each other with the laminate 30 sandwiched therebetween.
52b. A supply roller 152c for supplying the printing ink 156 having excellent releasability to the plate cylinder 152a is provided so as to contact the plate cylinder 152a and rotate in the opposite direction. Further, a supply roller 152d is provided so as to contact the supply roller 152c and rotate in the opposite direction. Below the supply roller 152d, a supply pan 154 for holding the ultraviolet curable printing ink 156 having excellent peeling property is arranged. The lower part of the supply roller 152d is
It is dipped in the printing ink 156 in the supply pan 154. Therefore, the supply rollers 152c and 152d, the plate cylinder 152
By rotating a and the impression cylinder 152b, respectively, the printing ink 15 is applied to the surface of the release agent layer 22 of the laminate 30.
6 is printed to a predetermined thickness.

Then, the laminate 30 printed with the printing ink 156 is moved to, for example, the ultraviolet irradiation device 160. Printing ink 156 by the ultraviolet irradiation device 160
Is dried and cured to form the printed layer 24. In addition,
As the drying / curing device, the most suitable one is selected according to the type of printing ink used.

Further, the laminate 30 'is guided to the process sheet removing device 170. A process sheet removing device 170 and rollers 172 and 174 are included. By the roller 172, the process sheet 26 is removed from the surface of the adhesive layer 16 of the laminate 30.
Only are transferred in the other direction. Therefore, the pressure-sensitive adhesive layer 16 formed on the initial process sheet 26 is the label substrate 14
Will be transferred to the side. After being separated from the laminate 30, the process sheet 26 is wound into a roll so that it can be reused separately.

On the other hand, the remaining laminate from which the process sheet 26 has been peeled off is transferred by the roller 174 in the direction different from that of the process sheet 26 to form the label continuum 10. The label continuum 10 has a slitter 17 so that the label continuum 10 has a predetermined width.
At 6, both side edges or one side edge is cut and processed, and is wound into a roll shape. In this way, the label continuum 10 is completed, and is stored and transported in a wound state.

According to the label continuum 10 of this embodiment, since the printing layer 24 has an excellent peeling property, the label continuum 10 is rolled up even after the adhesive layer 16 and the printing layer 24 are formed. You can rewind. Therefore, a wide or large-sized label base material 14 is used to form the adhesive layer 16, the thermosensitive coloring layer 18, the protective layer 20, and the release agent layer 22 in advance, and the continuous label with a narrow width is cut by a slitter or the like. After forming the body 10, the printing layer 24 is individually
Can be formed. Therefore, according to the structure of the label continuum 10 of this embodiment, it is possible to efficiently and economically produce a large variety of small lots.

Further, the label continuum 1 according to this embodiment
According to the manufacturing method No. 0, it is possible to consistently manufacture the label continuous body 10 having a multi-layer structure, and to rationalize the production line. Further, since the pressure-sensitive adhesive layer 16 is formed on the back surface of the label substrate 14 by transferring it from the process sheet 26, the pressure-sensitive adhesive layer 16 can be formed on the back surface of the label substrate 14 at room temperature. Therefore, as the label base material 14, an ultra-thin tape having relatively low heat resistance can be selected. Further, the pressure-sensitive adhesive layer 16 can be formed on the label base material 14 on which the thermosensitive coloring layer 18 has already been formed. Further, it becomes possible to use any printer such as a transfer foil printing type printer which requires relatively high heat. Further, since the solvent of the pressure-sensitive adhesive 28 in the emulsion state before forming the pressure-sensitive adhesive layer 16 is removed before transferring, the pressure-sensitive adhesive 28 forming the pressure-sensitive adhesive layer 16 is irrespective of the property of the label substrate 14. The range of choices can be expanded.

FIG. 5 is an illustrative view showing a latter half of steps of another example of the method for manufacturing the label continuum shown in FIG. In this manufacturing method, the laminate 30 is guided to the process sheet removing device 170 after the release agent layer 22 is formed. Then, by the roller 172, the pressure-sensitive adhesive layer 16 of the laminate 30.
Only the process sheet 26 is transferred in the other direction from the surface. Therefore, the pressure-sensitive adhesive layer 16 formed on the initial process sheet 26 is transferred to the label base material 14 side.
In this way, the process sheet 26 is peeled from the laminate 30 and wound into a roll so that it can be reused separately.

On the other hand, the remaining laminate from which the process sheet 26 has been peeled off is transferred by the roller 174 in the direction different from that of the process sheet 26 to form the label continuum 10 '. Subsequently, the label continuum 10 ′ is guided to the slitter 180. With the slitter 180, the label continuum 10 'is
It is cut into a predetermined width and wound into a roll.
The label continuum 10 'can be stored and transported in a wound state.

Then, the continuous label body 10 'slit into a narrow width is mounted on the printing apparatus 150 for individually forming the printing layer 24. The printing device 150 includes the laminate 3
It includes a plate cylinder 152a and an impression cylinder 152b that face each other with 0 interposed therebetween. Supply roller 152c for supplying printing ink 156 having excellent releasability to plate cylinder 152a
Are provided so as to contact the plate cylinder 152a and rotate in the opposite direction. Further, a supply roller 152d is provided so as to contact the supply roller 152c and rotate in the opposite direction. Below the supply roller 152d, a supply pan 154 for holding the printing ink 156 having excellent releasability.
Are placed. The lower portion of the supply roller 152d is dipped in the printing ink 156 in the supply pan 154. Therefore, by rotating the supply rollers 152c and 152d, the plate cylinder 152a, and the impression cylinder 152b, respectively, the printing ink 15 is applied to the surface of the release agent layer 22 of the label continuum 10 '.
6 is printed to a predetermined thickness.

Then, the label continuum 10 'on which the printing ink 156 is printed is moved to, for example, the ultraviolet irradiation device 160. The printing ink 156 is dried and cured by the ultraviolet irradiation device 160 to form the printing layer 24. As the drying / curing device, the most suitable one is selected according to the type of printing ink used. In this way, after the print layer 24 is formed, it is wound again in a roll shape, and the label continuum 10 is completed. Also by the manufacturing method shown in FIG. 5, the same effect as that of the manufacturing method shown in FIG. 4 can be obtained. Further, in this manufacturing method, the process sheet 26
Since it is wound up without being cut and can be used many times, it is possible to reuse resources without becoming waste.

FIG. 6 is a cross-sectional view of another example of the label continuum. Unlike the embodiment shown in FIG. 1, the label continuum 10 has a printing layer 24 formed on the surface of the protective layer 20,
Further, a release agent layer 22 is formed so as to cover the surface thereof. However, the adhesive layer 16 is provided on the back surface of the label substrate 14.
1 is the same as in the example shown in FIG. 1, and the heat-sensitive coloring layer 18 and the protective layer 2 are formed on the surface of the label substrate 14.
The fact that 0 is formed is similar to the example shown in FIG. Further, as the material for forming each layer, the same material as that of the embodiment shown in FIG. 1 is appropriately selected and used. The label continuum 10 shown in FIG. 6 is almost the same as the manufacturing line shown in FIGS. 3 and 4, but is manufactured on a manufacturing line in which the order of forming the printing layer 24 and the release agent layer 22 is changed. You can

The label continuum 10 shown in FIG.
Since No. 4 has excellent releasability, it has good compatibility with the release agent layer 22 and can form the release agent layer uniformly on the surface of the label continuum.

[Brief description of drawings]

FIG. 1 is a perspective view showing a label continuum which is an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of the label continuum shown in FIG.

FIG. 3 is an illustrative view showing a first half step of an example of the method for manufacturing the label continuum shown in FIG. 1.

FIG. 4 is an illustrative view showing a latter half of steps of an example of the method for manufacturing the label continuum shown in FIG. 1.

5 is an illustrative view showing a latter half of steps of another example of the method for manufacturing the label continuum shown in FIG. 1. FIG.

FIG. 6 is a cross-sectional view of another example label continuous body.

[Explanation of symbols]

10 Label continuum 12 labels 14 Label substrate 16 Adhesive layer 18 Thermosensitive coloring layer 20 Protective layer 22 Release agent layer 24 printing layers 26 process sheet 26a Release agent layer 28 Adhesive 30 laminates 100 adhesive application device 106 dryer 108 slitter 110 Protective agent coating device 130 Release agent coating device 150 printing devices 170 process sheet remover

─────────────────────────────────────────────────── --- Continuation of the front page (56) Reference JP-A-57-69091 (JP, A) JP-A-7-152321 (JP, A) JP-A-3-76637 (JP, A) JP-A-7- 121108 (JP, A) Actual development 59-107264 (JP, U) Actual development 55-35538 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) G09F 3/00 B29D 9 / 00 B31D 1/02 B32B 1/00-35/00 D21B 1/00-1/38 D21C 1/00-11/14 D21D 1/00-5/28 D21F 1/00-13/12 D21G 1/00 -9/00 D21H 1/00-27/42 D21J 1/00-7/00

Claims (5)

(57) [Claims] 1. A long label base material, an adhesive layer formed on the back surface of the label base material, a thermosensitive coloring layer formed on the surface of the label base material, and a thermosensitive coloring layer formed on the surface of the thermosensitive coloring layer. A protective layer for protecting the thermosensitive coloring layer, and a release agent layer formed on the surface of the protective layer so as to face the pressure-sensitive adhesive layer when the label base material is rolled up. , and wherein a label strip comprising a printing layer having excellent peelability formed on the surface of the release agent layer, the release agent layer contains a silicone resin as the release agent, the printed layer is a silicone resin as the vehicle A label continuum, which is formed from a printing ink containing a. 2. The label continuum according to claim 1, wherein the printing layer is formed of a vehicle containing a silicone resin and an ink containing a colorant dispersed in the vehicle. 3. The label continuum according to claim 1, wherein the protective layer is formed of a water-soluble resin. 4. A process sheet having a surface having release properties
Backside and the process sheet of step 1 of applying an adhesive to a surface having release properties, comprising a heat-sensitive coloring layer on the surface, elongated with a surface to be bonded by transferring the pressure-sensitive adhesive on the rear surface of the label base material step 2 Conform overlaid and an adhesive agent on the surface of the label substrate, step 3 to form a protective layer for protecting the heat sensitive color forming layer, to form the exfoliation agent layer on the surface of the protective layer step 4, step 5 to form a printed layer excellent in exfoliation resistance to the surface of the release agent layer, the label only peeling the process sheet from the transferred adhesive to the back surface of the substrate step 6, and the release agent so that the a layer the adhesive layer is temporarily attached to face, saw including a step 7 superimposing winding the label substrate, the step in turn the number or step number 1,
A method for manufacturing a label continuum, which is performed in the order of 2, 3, 4, 6, 5, and 7 . 5. The label continuation according to claim 4 , wherein in step 2 , the back surface of the wide and long label base material and the pressure-sensitive adhesive layer of the process sheet are overlapped and then cut to an appropriate width. Body manufacturing method.