JP2015179193A - Pseudo adhesive label and method for producing pseudo adhesive label - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pseudo adhesive label which can be easily industrially produced, can be efficiently printed by a heat-sensitive printer or the like, and can reduce a label size without reducing information amount to be printed.SOLUTION: In a pseudo adhesive label 10, a first thermal base material 11, a resin layer 12 formed of a hot melt adhesive containing a thermoplastic resin, a second thermal base material 13, an adhesive layer 14, and a peeling sheet 15 are laminated in this order. The resin layer 12 and the second thermal base material 13 are laminated so as to have pseudo adhesion. The first thermal base material 11 has a first base material 11A, and a first heat-sensitive coloring layer 11B provided on a face in an opposite side to the face in the resin layer side of the first base material 11A. The second thermal base material 13 has a second base material 13A, and a second heat-sensitive coloring layer 13B provided on a face in the resin layer 12 side of the second base material 13A.

Description

  The present invention relates to a pseudo-adhesive label, and more particularly to a pseudo-adhesive label that can be printed by a thermal printer or the like and can be used as a delivery slip or the like.

  Conventionally, a surface base material, a thermoplastic resin layer, an intermediate base material, an adhesive layer, and a release sheet are laminated in this order, and the thermoplastic resin layer and the intermediate base material are laminated so as to have pseudo-adhesiveness. A pseudo-adhesive label is known (see, for example, Patent Document 1). This pseudo-adhesive label is used after the release sheet is peeled off and affixed to an adherend with an adhesive layer. In the label affixed to the adherend, the surface base material is manually moved from the intermediate base material together with the thermoplastic resin layer. Can be easily peeled off. In addition, various information is generally printed on the surface base material, and thermal paper may be used.

  In recent years, pseudo-adhesive labels have been put to practical use as delivery slips. For pseudo-adhesive labels used as delivery slips, half-cut lines are placed on the surface substrate, and the surface substrate is separated into multiple pieces. In general, those that can be peeled off. In this pseudo-adhesive label, for example, a piece of surface base material separated by a half-cut line is used as a delivery slip, and another piece of surface base material is used as a receipt slip. The receipt slip is usually peeled off after being stamped or signed, taken home by a delivery company, and used for slip arrangement and the like. As described above, in the delivery slip, the surface base material is used by separating it into a delivery slip and a receipt slip, and therefore, the same delivery information such as the client, delivery destination, and delivery name may be printed on both of them. It is desired.

Utility Model Registration No. 3178208

However, when the delivery slip and the receipt slip are composed of a single surface base material as described above, the same delivery information must be printed twice, which is troublesome. There is also a problem that the label area inevitably increases because the delivery slip and the receipt slip are provided on the surface base material.
Furthermore, when manufacturing a pseudo-adhesive label industrially, it is necessary to apply a resin heated by a hot melt coater or the like onto the thermal paper. is there. Therefore, when thermal paper is used, it may be industrially difficult to produce a pseudo-adhesive label.

  The present invention has been made in view of the above problems, and the problem of the present invention is that it can be easily manufactured industrially, can be printed efficiently with a thermal printer, and is delivered. To provide a pseudo-adhesive label capable of reducing the label size without reducing the amount of information to be printed when a delivery slip and a receipt slip are provided on a slip.

As a result of intensive studies, the inventors have found that the above problems can be solved by using a thermal base material such as thermal paper as the intermediate base material and making the layer structure of the pseudo-adhesive label specific. Completed the invention.
That is, the present invention provides the following (1) to (9).
(1) A first thermal base material, a resin layer made of a hot melt adhesive containing a thermoplastic resin, a second thermal base material, an adhesive layer, and a release sheet are laminated in this order, and the resin layer and the Laminated so as to have pseudo-adhesiveness with the second thermal base material,
The first thermal base material has a first base material and a first thermosensitive coloring layer provided on a surface opposite to the resin layer side surface of the first base material,
The pseudo-adhesive label in which the second thermal base material includes a second base material and a second thermosensitive coloring layer provided on the surface of the second base material on the resin layer side.
(2) The pseudo-adhesive label according to (1), wherein the hot-melt adhesive has a softening point of 90 to 150 ° C.
(3) The pseudo-adhesive label according to (1) or (2), wherein the hot melt adhesive has a melt viscosity of 2000 to 13000 mPa · s at 160 ° C.
(4) The pseudoadhesive label according to any one of (1) to (3), wherein the thermoplastic resin is a polyolefin resin.
(5) The pseudoadhesive label according to any one of (1) to (4), wherein a peeling force between the resin layer and the second thermal base material is 100 to 1400 mN / 50 mm.
(6) The pseudo-adhesive label according to any one of (1) to (5), wherein the same information can be printed on the first and second thermal substrates from the surface on the first thermal substrate side. .
(7) The pseudo-adhesive label according to any one of (1) to (6), which is used as a delivery slip label.
(8) The pseudo-adhesive label is to be peeled and removed from the release sheet, and then adhered to the delivery article via the pressure-sensitive adhesive layer, and the first thermal base material together with the resin layer and the second The pseudoadhesive label according to the above (7), which is used as a receipt to be peeled off from the thermal base material.
(9) A method for producing a pseudo-adhesive label for producing the pseudo-adhesive label according to any one of (1) to (8) above,
A coating step of applying a hot melt adhesive containing a thermoplastic resin that is heated on a surface opposite to the surface on which the first thermochromic layer of the first thermal base material is provided; A pseudo-adhesion comprising: cooling a coated hot-melt adhesive; and a bonding step of bonding a surface on which the second thermosensitive coloring layer of the second thermal base material is provided to the cooled hot-melt adhesive Label manufacturing method.

  The present invention provides a pseudo-adhesive label that can be easily manufactured industrially, can be efficiently printed with a thermal printer, and can reduce the label size without reducing the amount of information to be printed.

It is typical sectional drawing which shows an example of the pseudoadhesive label of this invention. It is a schematic diagram which shows an example of the pseudo-adhesive label manufacturing apparatus of this invention. It is a schematic diagram which shows the process in which the pseudo adhesive label of this invention is manufactured.

Hereinafter, the present invention will be described in detail using embodiments.
[Pseudo-adhesive label]
As shown in FIG. 1, a pseudo-adhesive label 10 of the present invention includes a first thermal base material 11, a resin layer 12 made of a hot melt adhesive containing a thermoplastic resin, a second thermal base material 13, and an adhesive. The layer 14 and the release sheet 15 are laminated in this order, and are laminated so that the resin layer 12 and the second thermal base material 13 have pseudo-adhesiveness. Note that the pseudo-adhesive property refers to a property that peeling is easy at the interface between two stacked layers, and after peeling, it cannot be easily re-adhered between the peeled layers. Hereinafter, each member will be described in more detail.

[First and second thermal base materials]
The first thermal base material 11 includes a first base material 11A and a first thermosensitive coloring layer 11B laminated on the surface of the first base material 11A opposite to the surface on the resin layer 12 side. The second thermal base material 13 includes a second base material 13A and a second thermosensitive coloring layer 13B laminated on the surface of the second base material 13A on the resin layer 12 side.
The pseudo-adhesive label 10 of the present invention is provided with two thermal base materials 11 and 13 via a resin layer 12, and the thermal coloring layers 11B and 13B of the thermal base materials 11 and 13 are respectively on the surface side of the label. (Upper side of FIG. 1). With such a configuration, the same information can be simultaneously printed on the two thermal base materials 11 and 13 by one-time printing from the surface of the first thermal base material 11. Note that a thermal printer is usually used for printing on the thermal base materials 11 and 13.

In addition, a heated hot melt adhesive is usually laminated on the first thermal base material 11 to form the resin layer 12, but the first thermosensitive coloring layer 11 </ b> B is opposite to the resin layer 12. It is provided on the surface and does not directly contact the hot melt adhesive. Therefore, when the resin layer 12 is formed on the first thermal base material 11, the first thermosensitive coloring layer 11 </ b> B does not become high temperature and color development is prevented.
On the other hand, in the second thermal base material 13, the second thermosensitive coloring layer 13 </ b> B is provided on the resin layer 12 side and contacts the resin layer 12, but the second thermal base material 13 is between the resin layer 12 and the second thermal base material 13. Have pseudo-adhesive properties. The second thermal base material 13 is usually a resin layer because the resin layer 12 is thin and can be cooled immediately even when applied at a high temperature in order to ensure the pseudo-adhesion. Coloring at the time of bonding to 12 is prevented. That is, the pseudo-adhesive label 10 has a structure in which any of the heat-sensitive color developing layers 11B and 13B of the thermal base materials 11 and 13 is difficult to color when manufacturing the label.

As the first and second thermosensitive coloring layers 11B and 13B, a conventionally known thermosensitive coloring layer that is colored by heating can be used. For example, it contains a leuco dye and a developer that reacts with the leuco dye. Is mentioned. For example, the first and second thermosensitive coloring layers 11B and 13B may be formed by applying a coating liquid containing a binder, wax, solvent, or the like, in addition to the above leuco dye and developer, as appropriate. It is formed by coating one surface of each of the materials 11A and 13A.
The first and second base materials 11A and 13A include paper base materials such as kraft paper, fine paper, glassine paper, parchment paper, rayon paper, coated paper, synthetic fiber paper, polyester resin, and polyvinyl chloride. Resin films such as resin-based resins, polyvinylidene chloride-based resins, polyolefin-based resins, and synthetic papers composed of these resin films. The first point is to improve the printability and the remaining heat of the hot melt adhesive. From the viewpoint of making it difficult to transfer heat to the thermosensitive coloring layer 11B, a paper substrate is preferable.

The thickness of the first thermal base material 11 is preferably 10 to 100 μm. By setting the thickness of the first thermal base material 11 to 100 μm or less, printing from the surface side of the first thermal base material 11 enables printing on the second thermal base material 13 with excellent printability. . Further, by setting the thickness to 10 μm or more, even if the heated hot melt adhesive is applied to the first thermal base material 11, the remaining heat is hardly transmitted to the first thermosensitive coloring layer 11B, and the first thermosensitive coloring is performed. The layer 11B is less likely to be colored. From these viewpoints, the thickness of the first thermal base material 11 is more preferably 15 to 80 μm, and further preferably 20 to 70 μm.
Note that the first thermal base material 11 is relatively thin from the viewpoint of securing the printability on the second thermal base material 13 as described above, and preferably from the second thermal base material 13. Will also be thinner. Although the thickness of the 2nd thermal base material 13 is not specifically limited, It is preferable that it is 10-200 micrometers, and it is more preferable that it is 15-150 micrometers.

[Resin layer]
The resin layer 12 is formed from a hot melt adhesive containing a thermoplastic resin.
The thermoplastic resin is preferably a polyolefin resin, and specific examples of the polyolefin resin include polyethylene, polypropylene, propylene / ethylene copolymer, propylene / ethylene / butene copolymer, and ethylene / vinyl acetate copolymer. And an ethylene / α-olefin copolymer which is a copolymer of ethylene and an α-olefin having 4 to 10 carbon atoms, or a mixture thereof.
In this invention, it becomes easy to express appropriate pseudo-adhesiveness by using polyolefin resin for the resin layer 12. FIG. Moreover, since it is insoluble in water, for example, when used as a delivery slip, even if it is exposed to rain for a long time, it is prevented that the pseudo adhesiveness is lost.
Among these, propylene / ethylene copolymer, propylene / ethylene / butene copolymer, ethylene / vinyl acetate copolymer, or a mixture thereof may be mentioned as preferred examples, and propylene / ethylene copolymer is more preferable. A preferable example includes a propylene / ethylene copolymer as a main component and the addition of the ethylene / α-olefin copolymer. In this case, the ethylene / α-olefin copolymer is preferably an ethylene / 1-octene copolymer.
When the above resins are used, the melt viscosity is lowered even at a low temperature, and the hot melt adhesive can be applied at a relatively low temperature, and the heat-sensitive color developing layers 11B and 13B caused by heating of the hot melt adhesive at the time of label production are used. It becomes easy to prevent color development. Moreover, it becomes easy to make the pseudo-adhesiveness between the resin layer 12 and the 2nd thermal base material 13 excellent.
In the hot melt adhesive, the polyolefin resin is usually a main component and is not particularly limited, but is usually 50% by mass or more, preferably 70% by mass or more, more preferably based on the total amount of the hot melt adhesive. Is contained in an amount of 85% by mass or more.

The hot melt adhesive may contain acid-modified polyolefin, solid paraffin, or the like in addition to the above-described polyolefin resin.
Examples of the acid-modified polyolefin include maleic anhydride-modified polypropylene. Specific examples include those obtained by modifying the ends of polypropylene resins with maleic anhydride, or polypropylene resins graft-modified with maleic anhydride. The acid-modified polyolefin is preferably contained in an amount of 2 to 40% by mass, more preferably 5 to 30% by mass, based on the total amount of the hot melt adhesive. If the hot melt adhesive contains an acid-modified polyolefin such as maleic anhydride-modified polypropylene, it becomes easy to make it have a high tack property at a relatively low heating temperature that does not cause the thermal base material to develop color. Therefore, it becomes easy to obtain stable pseudo-adhesiveness without coloring the thermal base material.

Moreover, the hot melt adhesive contains a solid paraffin wax and is stable at the interface between the resin layer 12 and the second thermal base material 13 even if the bonding temperature with the second thermal base material 13 changes. It shows the peel strength that has been achieved, and good pseudo-adhesiveness can be secured under the bonding conditions in a wide temperature range. The solid paraffin wax is CAS No. 8002-74-2 solid paraffin, and the melting point thereof is preferably 90 to 130 ° C, more preferably 100 to 125 ° C. In addition, the hot melt adhesive has a melting point of solid paraffin of 130 ° C. or lower, so that it is easy to secure a peeling force showing appropriate pseudo-adhesiveness at a low bonding temperature at which the thermal base materials 11 and 13 do not develop color. .
Solid paraffin wax is preferably used when the polyolefin resin is a propylene / ethylene copolymer. At that time, the melting point of the solid paraffin wax is preferably higher than that of the propylene / ethylene copolymer.
The solid paraffin is preferably contained in an amount of 1 to 20% by mass and more preferably 3 to 15% by mass with respect to the total amount of the hot melt adhesive.

  In addition, hot melt adhesives contain various additives such as antioxidants, ultraviolet absorbers, light stabilizers, flexibility imparting agents, flame retardants, antistatic agents, lubricants, fillers, and colorants as necessary. You may contain.

  Moreover, it is preferable that the softening point of a hot-melt-adhesive is 90-150 degreeC. When the hot melt adhesive has a softening point of 90 ° C. or higher, the resin layer 12 is prevented from being softened even in summer and the adhesive stability is improved. Moreover, a coating temperature can be lowered | hung by setting it as 150 degrees C or less, and it becomes easy to suppress the color development of the thermal base materials 11 and 13 at the time of label manufacture. From these viewpoints, the softening point is more preferably 100 to 150 ° C.

  The melt viscosity at 160 ° C. of the hot melt adhesive is preferably 2000 to 13000 mPa · s. By setting the melt viscosity to 2000 mPa · s or more, dripping or the like is less likely to occur when the hot melt adhesive is applied using a hot melt coater. Moreover, by setting it as 13000 mPa * s or less, it becomes possible to apply a hot-melt-adhesive on the 1st thermal base material 11 at the low temperature which the 1st thermal base material 11 does not color. From these viewpoints, the melt viscosity is more preferably 4000 to 12000 mPa · s.

As described above, the resin layer 12 is laminated on the second thermal base material 13 so as to have pseudo-adhesiveness, and the resin layer 12 and the second thermal base material 13 can be easily separated. It is in close contact with a peeling force that can be peeled off. Specifically, the peeling force between the resin layer 12 and the second thermal base material 13 is preferably 100 to 1400 mN / 50 mm. In addition, the measuring method of this peeling force is as the Example mentioned later. When the peeling force is 100 mN / 50 mm or more, the laminate of the first thermal base material 11 and the resin layer 12 is prevented from being unexpectedly peeled off from the second thermal base material 13. Moreover, it becomes possible to peel the said laminated body smoothly with comparatively small peeling resistance as it is 1400 mN / 50mm or less. From these viewpoints, the peeling force is more preferably 200 to 1000 mN / 50 mm.
On the other hand, the resin layer 12 and the first thermal base material 11 are bonded more firmly than the peeling force between the resin layer 12 and the second thermal base material 13. Therefore, in the state in which the release sheet 15 is peeled off and the pseudo-adhesive label 10 is attached to the adherend with the pressure-sensitive adhesive layer 14, when the first thermal base material 11 side is manually peeled off, the thermal base material 11 is The resin layer 12 is peeled off from the second thermal base material 13.
Although the thickness of the resin layer 12 is not specifically limited, For example, it is 5-40 micrometers, Preferably it is 10-30 micrometers.

[Adhesive layer]
The pressure-sensitive adhesive layer 14 is a layer for bonding the pseudo adhesive label 10 to an adherend. The pressure-sensitive adhesive layer 14 is formed from a conventionally known pressure-sensitive adhesive such as an acrylic pressure-sensitive adhesive, a natural rubber-based pressure-sensitive adhesive, a synthetic rubber-based pressure-sensitive adhesive, or a silicone-based pressure-sensitive adhesive. An agent is preferably used. Although the thickness of the adhesive layer 13 is not specifically limited, For example, 5-50 micrometers, Preferably it is 10-40 micrometers.

[Peeling sheet]
As the release sheet 15, a conventionally known sheet can be used without particular limitation. For example, polyester films such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyolefin films such as polyethylene, polypropylene, polymethylpentene, paper base materials such as clay coated paper, glassine paper, recycled paper, etc. A laminate paper or the like on which a thermoplastic resin such as polyethylene is laminated is used in which one side is peeled with a release treatment agent. Examples of the release treatment agent include silicone resins, long-chain alkyl resins, fluorine resins, etc., but silicone resins are preferable from the viewpoint of cost and releasability. Although the thickness of the peeling sheet 15 is not specifically limited, For example, it is 20-200 micrometers, Preferably it is 40-100 micrometers.

  The pseudo adhesive label 10 is preferably stamped. In the punching process, after the first thermal base material 11, the resin layer 12, the second thermal base material 13, and the pressure-sensitive adhesive layer 14 are punched and cut from the first thermal base material 11 side, unnecessary portions are removed by raising the residue. Is removed from the release sheet 15. Therefore, as shown in FIG. 1, on the release sheet 15, the first thermal base material 11, the thermoplastic resin layer 12, the second thermal base material 13, and the adhesive are slightly smaller than the release sheet 15. The agent layer 14 is laminated.

  Further, the pseudo adhesive label 10 may be provided with a half cut line. The half cut line is obtained by cutting the first thermal base material 11 and the resin layer 12 so as not to cut the second thermal base material 13. The half cut line may be formed in a perforated shape, or may be formed by a continuous single slit or the like. When the half-cut line is provided, the first thermal base material 11 is cut along the half-cut line together with the resin layer 12, and can be separated and separated as a plurality of sheets.

The pseudo adhesive label 10 of the present invention is used as a delivery slip label, for example. For example, the pseudo-adhesive label 10 is to be adhered to a delivery article via the pressure-sensitive adhesive layer 14 after the release sheet 15 is peeled and removed. For example, the first thermal base material 11 is used as a receipt. The second thermal base material 13 is used as a delivery form. That is, when delivery is completed, the first thermal base material 11 is peeled off from the second thermal base material 13 together with the resin layer 12 after stamping or signing, and used as a receipt to be taken back to the delivery company. On the other hand, the second thermal base material 12 side is a delivery slip left at the delivery destination.
The same information can be printed on both the first and second thermal base materials 11 and 13 by one-time printing by a thermal printer. Therefore, even after the first thermal base material 11 (receipt slip) is peeled off, the same information as the receipt slip can be left on the delivery slip. Moreover, in the pseudo-adhesive label 10 of the present invention, since the delivery slip and the receipt slip on which the same information is printed are arranged in an overlapping manner, the label size can be reduced, and it can be used for small delivery items. Become. The information printed on the first and second thermal base materials 11 and 13 includes delivery information such as a client, a delivery destination, and a delivery item name.

[Method for producing pseudo-adhesive label]
Next, a method for manufacturing a pseudo adhesive label will be described.
In one embodiment of the present invention, a method for producing a pseudo-adhesive label comprises applying a heated hot melt adhesive to the surface of the first thermal base material opposite to the surface on which the first thermosensitive coloring layer is provided. A surface of the second thermal base material on which the second thermosensitive coloring layer is provided on the cooled hot melt adhesive (resin layer). A pasting step for pasting together.
According to the above manufacturing method, in the coating process, the heated hot-melt adhesive may be applied to the first thermal base material to laminate the resin layer on the first thermal base material in a non-peelable manner. It becomes possible. At this time, the heated hot melt adhesive is not in direct contact with the first thermosensitive coloring layer, and the first thermal base material is hardly colored by heating during coating.
On the other hand, in the bonding step, the second thermosensitive coloring layer of the second thermal base material is in direct contact with the resin layer (hot melt adhesive), but the resin layer has a suitable temperature so as to ensure pseudo-adhesiveness. It is cooled and bonded to the second thermal base material, whereby the second thermal base material is less likely to be colored.
In the bonding step, the second thermal base material alone may be bonded to the resin layer (hot melt adhesive), but a laminate in which other layers are stacked on the second thermal base material. It may be. Specific examples of the laminate include a pressure-sensitive adhesive sheet in which a release sheet, a pressure-sensitive adhesive layer, and a second thermal base material are laminated in this order.

In the above production method, the hot melt adhesive is preferably heated so as to be melted when applied on the first thermal base material, and the temperature of the hot melt adhesive at the time of application Specifically, (coating temperature) is preferably 120 to 210 ° C, and more preferably 130 to 190 ° C. By setting it as these temperature ranges, while being able to make coatability favorable, it is prevented that a 1st thermal base material develops color or a curl generate | occur | produces.
In addition, the second thermal base material is bonded to the resin layer so that pseudo-adhesiveness is expressed, and the temperature (bonding temperature) of the resin layer surface during the bonding is, for example, about 30 to 90 ° C., Preferably it is about 40-60 degreeC.

The above manufacturing method is performed using, for example, the pseudo-adhesive label manufacturing apparatus 30 shown in FIG. Hereinafter, an example in which the pseudo adhesive label 10 is manufactured by the pseudo adhesive label manufacturing apparatus 30 illustrated in FIG. 2 will be described in detail.
The pseudo-adhesive label manufacturing apparatus 30 is provided with an adhesive application device 31 that applies a hot-melt adhesive on one surface of the first thermal base material 11 and a coating pressure bonding provided opposite to the adhesive application device 31. A roll 32 and a pressure roll 33 for adhering the second thermal base material 13 to the resin layer 12 provided so as to be adjacent to the coating pressure roll 32 and formed of a hot melt adhesive are provided.

In the manufacturing apparatus 30, the first thermal base material 11 is fed from the first feed roll 35, passes through the guide roll 36, travels to the coating pressure-bonding roll 32, and is wound around the coating pressure-bonding roll 32. At this time, the first thermal base material 11 has a surface on the first base material 11 </ b> A side (that is, a surface on which the first thermosensitive coloring layer 11 </ b> B is not provided) on the outer peripheral side of the coating pressure-bonding roll 32. Be placed.
Next, a hot melt adhesive is applied to the surface of the first base material 11A of the first thermal base material 11 wound around the coating pressure roll 32 by the adhesive coating device 31 at a predetermined coating temperature. Coated. The adhesive application device 31 is, for example, a hot melt coater that extrudes and applies a hot melt adhesive melted by heating.

  The first thermal base material 11 coated with the hot melt adhesive is fed between the pressure-bonding roll 33 and the coating pressure-bonding roll 32 while being wound around the coating pressure-bonding roll 32. Here, the coating pressure-bonding roll 32 has a cooling function through which cooling water or the like is passed. Therefore, since the heat-sensitive color developing layer 11B is cooled in direct contact with the coating pressure-bonding roll 32, no color is generated by the hot melt adhesive heated to the coating temperature. Further, since the hot melt adhesive is cooled by the coating pressure roll 32 until it is sent to the pressure bonding point with the pressure roll 33, the heated hot melt adhesive is cooled to a predetermined temperature, The resin layer 12 having properties suitable for exhibiting pseudo-adhesiveness is laminated on the surface of the first thermal substrate 11 on the first substrate 11A side (see FIG. 3).

Further, from the second feeding roll 37, for example, the pressure-sensitive adhesive sheet 20 is sent between the pressure-bonding roll 33 and the coating pressure-bonding roll 32. As shown in FIG. 3, the pressure-sensitive adhesive sheet 20 is formed by laminating a release sheet 15, a pressure-sensitive adhesive layer 14, and a second thermal base material 13 in this order. The thermosensitive coloring layer 13 </ b> B is disposed on the surface of the pressure-sensitive adhesive sheet 20.
Between the pressure-bonding roll 33 and the coating pressure-bonding roll 32, the surface of the pressure-sensitive adhesive sheet 20 on the second thermal base material 13 side (that is, the surface provided with the second thermosensitive coloring layer 13B) is pressure-bonded to the resin layer 12. Thus, the pseudo-adhesive label 10 is obtained and wound around the winding roll 38.
According to the pseudo-adhesive label manufacturing apparatus 30 according to FIG. 2, since the formation of the resin layer and the bonding of the resin layer and the second thermal base material can be performed continuously in a series of steps, fewer steps are required. A pseudo-adhesive label can be manufactured with a number.

  The pseudo-adhesive label manufacturing apparatus 30 shown in FIG. 2 may further include a cooling roll (not shown). The cooling roll has a cooling function when the outer peripheral surface is formed of a metal cylinder and cooling water or the like is passed through the inside of the cooling roll. The cooling roll has a structure in contact with the outer peripheral surface of the coating pressure-bonding roll at a position not in contact with the coating pressure-bonding roll 32 and the first thermal base material. If cooling is performed by the cooling roll, the thermal base material 11 and the hot melt adhesive can be indirectly cooled via the coating pressure bonding roll 32. The cooling roll and the coating pressure-bonding roll 32 may be cooled at the same time, or one of them may be cooled. When the cooling roll is provided, the coating pressure-bonding roll 32 can be more efficiently cooled by the cooling roll or can be cooled under temperature control.

The pseudo-adhesive label manufacturing apparatus 30 shown in FIG. 2 can further include a printing apparatus as necessary. As a printing apparatus, one or a plurality of units can be installed at an arbitrary position of the pseudo-adhesive label manufacturing apparatus 30. For example, if a print head for printing from the lower side in FIG. 2 toward the web is installed between the pressure roll 33 and the take-up roll 38, a pseudo having a print pattern on the first thermosensitive coloring layer serving as a receipt. Adhesive labels can be manufactured. Further, if a print head for printing from the upper side in FIG. 2 toward the web is installed between the first feeding roll 35 and the guide roll 36, a printing pattern is formed between the first base material and the resin layer 12. A pseudo-adhesive label can be produced. Further, if a print head for printing from the upper left direction in FIG. 2 toward the web is installed between the second feeding roll 37 and the pressure roll 33, printing is performed on the second thermosensitive coloring layer 13B serving as a delivery form. A pseudo-adhesive label having a pattern can be produced. As a printing apparatus used for the pseudo adhesive label manufacturing apparatus 30, a flexographic printing apparatus or the like is preferable.
Such a printing device is not applied to variable information such as heat-sensitive color development, but applied to give a pseudo-adhesive label with a fixed logo or design pattern, a printed pattern such as a ruled line, or a concealed printing layer. Is done.

  The pseudo-adhesive label manufacturing apparatus 30 illustrated in FIG. 2 may further include a punching apparatus, a scrap removing apparatus, and the like as necessary. Examples of the punching device include a die cutting device and a laser cutting device equipped with a pinnacle blade and a Thomson blade. With these punching devices, the punching process for cutting the layers from the first thermal base material 11 to the pressure-sensitive adhesive layer 14 while leaving the release sheet 15 and the layers from the first thermal base material 11 to the resin layer 12 are cut. Half cut or perforation processing can be performed. When punching out the pseudo-adhesive label 10 into a closed shape on the outer periphery, it is preferable to remove the outer side from the outer periphery with a residue removing device.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not restrict | limited by these examples.

The measurement method and evaluation method in the present invention are as follows.
(1) Melt viscosity The melt viscosity at 160 ° C of the hot melt adhesive was measured with a Brookfield B-type viscometer (rotor No. 27, rotation speed 20 rpm).
(2) Softening point The softening point of the hot melt adhesive was measured by the ring and ball method (JIS K 7234 4.1).
(3) Manufacturing machine test Using the apparatus shown in FIG. 2 by the method shown in each example, the productivity when producing the pseudo-adhesive label shown in FIG. 1 was evaluated. “A” indicates that the productivity is good, and “B” indicates that the productivity is slightly inferior in terms of stability of the pseudo-adhesive force, but “B” indicates that the production is possible and “F” indicates that the pseudo-adhesive label cannot be produced "
(4) Pseudo-adhesive evaluation The pseudo-adhesiveness of the pseudo-adhesive label was evaluated by the peel force and the peel state. That is, after attaching the pseudo-adhesive label (length: 10 cm, width: 5 cm) from which the release sheet was peeled off to the SUS plate, the first thermal base material was attached at room temperature (23 ° C.) using a tensile tester. It peels from the 2nd thermal base material on conditions with a peeling angle of 180 degrees and a peeling speed of 0.3 m / min together with the resin layer, and the force required for the peeling is defined as the peeling force between the resin layer and the second thermal base material. It was measured.
In the measurement of peeling force, if the first thermal base material and the second thermal base material can be peeled without any damage, it is assumed that the peeling state is good, and “A”. When the peeled first thermal base material is curled but can be used as a receipt, “B” is given. In the measurement of the peel force, the peeled first thermal base material has a large curl as a receipt. When it was not usable, or when it suffered unusable damage such as either the first thermal base material or the second thermal base material being torn off, it was evaluated as “F”.
(5) Printing test Printing was performed from the surface side of the first thermal substrate of the pseudo-adhesive label using “110Xi4” manufactured by Zebra Technologies. After printing, the first thermal base material was peeled off from the second thermal base material together with the resin layer, and the printing state of the second thermal base material was visually confirmed and evaluated according to the following criteria.
A: Characters could be clearly observed and printability was good.
B: Although the printed characters were somewhat unclear, the characters could be recognized.
F: The printed characters could not be seen or recognized.

Example 1
The pseudo adhesive label shown in FIG. 1 was manufactured as follows using the pseudo adhesive label manufacturing apparatus 30 shown in FIG.
First, as the first thermal base material 11, a thermal paper “TP50KS-HS” (thickness: 64 μm) manufactured by Nippon Paper Industries Co., Ltd. was prepared. Further, as the pressure-sensitive adhesive sheet 20, the thermal paper “TP50KS-HS” (thickness: 64 μm) manufactured by Nippon Paper Industries Co., Ltd. is used for the second thermal base material 13, and the acrylic pressure-sensitive adhesive “PW” manufactured by Lintec Corporation is used for the pressure-sensitive adhesive layer 14. (Thickness: 20 μm), a release sheet 15 was prepared with an adhesive sheet made of release paper “SP-8K Ao” manufactured by Lintec Corporation. The second thermosensitive coloring layer of the second thermal base material was provided on the surface opposite to the surface on the pressure-sensitive adhesive layer side.
The first thermal base material 11 was set on the first feeding roll 35, and the adhesive sheet 20 was set on the second feeding roll 37. The first thermal base material fed out from the first feeding roll 35 is wound around the coating pressure-bonding roll 32, and the surface of the first thermal base material opposite to the surface provided with the thermosensitive coloring layer is hot. With a melt coater, an olefin resin hot melt adhesive (MORESCO, “EP-90”, softening point: 148 ° C., 160 ° C. melt viscosity: 11000 mPa · s) is applied at a resin extrusion temperature (coating temperature) of 160 ° C. Extrusion coating was performed so that the thickness of the layer was 20 μm, and a resin layer was formed on the first thermal base material. In addition, 20 degreeC water was circulated through the inside of the coating pressure-bonding roll 32.
Next, between the pressure-bonding roll 33 and the coating pressure-bonding roll 32, the pressure-sensitive adhesive sheet is placed at 50 ° C. (the temperature of the resin layer surface is a non-contact temperature by infrared rays) so that the surface of the second thermal base is in contact with the resin layer. 1) to obtain a pseudo-adhesive label shown in FIG. 1 by punching and removing the residue.

Example 2
The same procedure as in Example 1 was performed except that a thermal paper “P220AB” (thickness: 80 μm) manufactured by Mitsubishi Paper Industries Co., Ltd. was used as the first thermal base material.

Example 3
The same procedure as in Example 1 was performed except that the resin extrusion temperature was changed to 180 ° C.

Example 4
The same procedure as in Example 1 was performed except that the resin extrusion temperature was changed to 200 ° C.

DESCRIPTION OF SYMBOLS 10 ... Pseudo-adhesive label 11 ... 1st thermal base material 11A ... 1st base material 11B ... 1st thermosensitive coloring layer 12 ... Resin layer 13 ... 2nd thermal base material 13A ... 2nd base material 13B ... 1st Two thermosensitive coloring layers 14 ... pressure-sensitive adhesive layer 15 ... release sheet 20 ... pressure-sensitive adhesive sheet 30 ... pseudo-adhesive label manufacturing apparatus 30
31 ... Adhesive coating device 32 ... Coating pressure roll 33 ... Pressure roll

Claims (9)

A first thermal base material, a resin layer made of a hot melt adhesive containing a thermoplastic resin, a second thermal base material, an adhesive layer, and a release sheet are laminated in this order, and the resin layer and the second layer It is laminated so that it has pseudo-adhesion between the thermal base material,
The first thermal base material has a first base material and a first thermosensitive coloring layer provided on a surface opposite to the resin layer side surface of the first base material,
The pseudo-adhesive label in which the second thermal base material includes a second base material and a second thermosensitive coloring layer provided on the surface of the second base material on the resin layer side.   The pseudo-adhesive label according to claim 1, wherein a softening point of the hot melt adhesive is 90 to 150 ° C.   The pseudo adhesive label according to claim 1 or 2, wherein the hot melt adhesive has a melt viscosity of 2000 to 13000 mPa · s at 160 ° C.   The pseudoadhesive label according to any one of claims 1 to 3, wherein the thermoplastic resin is a polyolefin resin.   The pseudoadhesive label according to any one of claims 1 to 4, wherein a peeling force between the resin layer and the second thermal base material is 100 to 1400 mN / 50 mm.   The pseudo-adhesive label according to any one of claims 1 to 5, wherein the same information can be printed on the first and second thermal substrates from the surface on the first thermal substrate side.   The pseudoadhesive label according to any one of claims 1 to 6, which is used as a delivery slip label.   The pseudo-adhesive label is one that is peeled off and removed from the release sheet, and is then adhered to a delivery article via the pressure-sensitive adhesive layer. The first thermal base material and the resin layer are combined with the second thermal group. The pseudo-adhesive label according to claim 7, wherein the pseudo-adhesive label is used as a receipt that is peeled off from the material and brought back. It is a manufacturing method of the pseudoadhesive label which manufactures the pseudoadhesive label in any one of Claims 1-8,
A coating step of applying a hot melt adhesive containing a thermoplastic resin that is heated on a surface opposite to the surface on which the first thermochromic layer of the first thermal base material is provided; A pseudo-adhesion comprising: cooling a coated hot-melt adhesive; and a bonding step of bonding a surface on which the second thermosensitive coloring layer of the second thermal base material is provided to the cooled hot-melt adhesive Label manufacturing method.

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