JP2013104906A - Mountless label and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mountless label, even when a release agent layer 5 is formed on the surface of a label base material 2, acquiring beautiful printing with an ink infiltrated in the label base material by stamp type printing, and wholly colored, and to provide a manufacturing method thereof.SOLUTION: Release agent coated areas 12 and non-coated areas 13 are provided on a release agent layer 5 to be provided on the surface of the label base material 2, and the surface roughness and smoothness of the label base material 2 are adjusted to control ink infiltration ease. A colorant is added to the release agent to color the release agent layer 5. A ratio of the area of the coated areas 12 to the release agent layer 5 is defined as 70-99%, and the smoothness of the label base material 2 measured by the testing method for smoothness prescribed in JIS P 8119 is defined as 40-1,000 seconds. A barrier layer 11 is provided between the label base material 2 and an adhesive layer 3.

Description

    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mountless label and a method for manufacturing the same, and more particularly to a mountless label that can be loaded in a portable label printing and pasting machine and printed by a transfer and stamp method, and a method for manufacturing the same. .

2. Description of the Related Art Conventionally, using a portable label printing and pasting machine, a label is pasted on various products and other objects to be pasted, and the price of the product and other necessary information are displayed.
When using this portable label printer, the label is wound and loaded on a holder such as a paper holder in the portable label printer, and the label is fed out from the paper holder. Then, it is inserted into a portable label printing / applying machine and transferred or printed.

A conventional label continuum 1 used by being loaded into such a portable label printing and sticking machine will be outlined with reference to FIG.
FIG. 8 is a perspective view in which the label continuum 1 is in a roll form, and the label continuum 1 includes a strip-shaped label base 2, an adhesive layer 3 formed on the back side of the label base 2, and an adhesive And a mount 6 (release paper) in which the release agent layer 5 is formed on the mount base material 4 while temporarily attached to the agent layer 3.

    A single-leaf label piece 8 can be formed on the label substrate 2 and the pressure-sensitive adhesive layer 3 by forming cuts 7 at a predetermined pitch.

    The continuous label body 1 having such a configuration is loaded into a portable label printing and pasting machine, transferred to the inside thereof, stamp printed at the printing unit, and peeled off only the mount 6 at the peeling unit, whereby a single-leaf label is formed. The piece 8 can be attached to the adherend.

    Since the label continuous body 1 shown in FIG. 8 peels the mount 6 from the label base material 2 in the portable label printing and sticking machine and sticks the single-leaf label piece 8 to the adherend, In addition to hung from the portable label printing and pasting machine, it interferes with the work, and the mount 6 itself becomes garbage.

    The mount 6 has another disadvantage. About half of the thickness of the label continuous body 1 is occupied by the mount 6, which is also a factor of increasing the thickness when laminated. When stamp printing is performed by a portable label printing and pasting machine, the roll diameter that can be loaded is limited, and the roll diameter of the roll as the label continuous body 1 is restricted. When the mount 6 is present, the number of label pieces 8 per roll must be reduced. Therefore, there has been a demand for a non-mounting label for omitting the mount and loading it into a portable label printing and pasting machine for printing.

    The label without backing paper is a long strip-shaped label base material with a release agent layer on the surface and an adhesive layer on the back side. Since the outer peripheral pressure-sensitive adhesive layer is overlaid, the structure is such that a mount is not required. As a result, there is an advantage that the mount which becomes dust after the label is used is not generated. In addition, it is a label that contributes to resource conservation because the mount is not used in the production process.

    However, the printer in a general portable label printing and pasting machine is a type that stamps on the label substrate with a predetermined pressing force after applying ink to the printing type with an ink roller. Yes, if the ink is simply stamp-printed on the release agent layer on the label surface, the ink is repelled by the release agent and the printing becomes faint. I cannot get a beautiful print.

    Accordingly, the present inventors have no mount having a release agent layer 5 formed by halftone dot printing as shown in FIG. 1 and having a passage for the ink to permeate the label base material 2 for a portable label printing and pasting machine. Label 10 was developed. When stamp printing is performed on the label 10 without the mount, the ink penetrates the label substrate 2 through the non-coating region 13 of the release agent of the release agent layer 5, and a beautiful print can be obtained.

    A variety of uses are also required for non-mounting labels printed by portable label printing and pasting machines. For example, in the case of a retail store, it may be desirable to make the entire label a prominent color such as yellow or orange in order to catch the shopper's eyes, rather than simply using it to price merchandise. In order to color the label, a solid print of a desired color is performed on the surface of the label base material, and a label without a mount is obtained by halftone printing a release agent on the solid print layer 5. However, when stamp printing is performed on the surface of the release agent layer 5, the ink penetrates into the non-coating region 13 of the release agent of the release agent layer 5, but the solid printing layer impedes the penetration into the label substrate 2 and is beautiful. Printing cannot be obtained.

JP 2004-279840 A

    The present invention has been made in view of the above problems, and even if a release agent layer is formed on the surface of the label substrate, the ink soaks into the label substrate by stamp-type printing to obtain a beautiful print. It is another object of the present invention to provide a mountless label in which the entire label surface is colored and a method for manufacturing the same.

    Moreover, this invention makes it a subject to provide the label without a mount which can simplify a manufacturing process, and its manufacturing method.

In the present invention, the release agent layer provided on the surface of the label base material is provided with a release agent coating region and a non-coating region, the surface of the label base material is not roughened, and the ease of ink penetration is adjusted by adjusting the smoothness. It focuses on controlling. Furthermore, by adding a colorant to the release agent, the release agent layer has a function corresponding to solid printing, and the present invention has been completed.
A first invention is a mountless label having a label base material, an adhesive layer provided on the back surface of the label base material, and a release agent layer provided on the surface of the label base material. The agent layer has a coating region and a non-coating region of the release agent. The area ratio of the coating region in the release agent layer is set to 70 to 99%, and according to the smoothness test method according to JIS P8119. The measured smoothness of the label base material is 40 to 1000 seconds, the release agent layer is colored, and a barrier layer is provided between the label base material and the pressure-sensitive adhesive layer. It is a label without a mount.
2nd invention is a manufacturing method of the label without a mount which has a strip-shaped label base material, an adhesive layer provided in the back of this label base material, and a release agent layer provided in the surface of the above-mentioned label base material. The label base material has a smoothness measured by a smoothness test method according to JIS P8119 of 40 to 1000 seconds, and the surface of the label base material has a release agent coating region and a non-coating region. A release agent layer forming step for forming the release agent layer so as to have a work area, a barrier layer forming step for forming a barrier layer on the back surface of the label base material, and forming the adhesive layer on the back surface of the barrier layer And a pressure-sensitive adhesive layer forming step, wherein a colorant is added to the release agent, and a label base material is colored by coating of the release agent.
One or a plurality of colorants selected from pigments and dyes are added to the release agent layer.
The non-coating region where the release agent is not applied is uniformly distributed with respect to the application region of the release agent.
The area ratio of the coating region and the non-coating region in the release agent layer is 99: 1 to 70:30.
The coating area and the non-coating area in the release agent layer are formed by dot printing of the release agent on the surface of the label base material.
The amount of the release agent applied in the release agent layer is 0.1 to 3.0 g / m ² .
The sizing degree of the label base material measured by the sizing degree test method according to JIS P8122 is 10 to 30 seconds.
The barrier layer is formed of an ultraviolet curable resin.
The label base material is formed into a strip shape and is wound in a roll shape with the pressure-sensitive adhesive layer inside.
By forming transfer slits on the label base material at a predetermined pitch, the label without the mount can be transferred, and at the transfer slit part, the label base material is cut in the width direction to form a single-leaf label piece. It can be formed.

    According to the mountless label and the method for producing a mountless label of the present invention, a colorant is added to a release agent to form a release agent layer, thereby giving the release agent layer a function equivalent to solid printing, and a label. A colored mountless label can be obtained without solid printing on the substrate. The manufacturing process can be simplified. Since the obtained label without mount has no solid printing layer, printing by the stamp method is not hindered, and a beautiful printing can be obtained.

  Specifically, the release agent layer provided on the surface of the label base material is provided with a release agent coating region and a non-coating region, and the smoothness of the label base material measured by a smoothness test method according to JIS P8119. By adjusting the degree to 40 to 1000 seconds, it is easy to soak the ink inside the label base material. Therefore, even if the label base material is in a roll form or a laminated state, the upper layer side and the lower layer side are adhered to each other. It is possible to prevent the ink from penetrating, and even if printing is performed by the stamp (stamping) method in a portable label printing and pasting machine or any other system, the required amount of ink can be soaked into the label base material. Printing performance can be provided.

    Further, the label without a mount of the present invention includes a release agent layer provided with a release agent coating region and a non-coating region, a label substrate with adjusted smoothness, and a label substrate and an adhesive layer. In addition, the ink that has penetrated into the label base material does not reach the pressure-sensitive adhesive layer, and the label base material is transported, printed, and fixed at an appropriate level and portable. It can be used by loading it into a type label printing and pasting machine. The penetrated ink does not stain the adherend.

    In particular, according to the method for manufacturing a label without a mount, the label substrate has a smoothness measured by a smoothness test method according to JIS P8119 of 40 to 1000 seconds, and has a coating region and a non-coating region. A release agent layer forming step for forming a release agent layer, a barrier layer forming step for forming a barrier layer on the back surface of the label base material, and an adhesive layer forming step for forming an adhesive layer on the back surface of the barrier layer, As a result, it is possible to manufacture non-mounting labels with a slight modification of conventional label manufacturing equipment, and to roll strip-like non-mounting labels that can be loaded and used in portable label printing and pasting machines. It can be manufactured in a rolled form. A colored colored mountless label can be produced without performing solid printing.

It is the perspective view which made the mountless label 10 by the Example of this invention the roll form. 2 is a plan view of the label 10 without mount. It is the III-III sectional view taken on the line of FIG. It is a side view of the portable boardless label printing and pasting machine 20. FIG. 3 is a side view showing a state where the paper holder 22 and the platen unit 24 are opened. FIG. 3 is a schematic side view of the mountless label manufacturing apparatus 40 for manufacturing the mountless label 10 up to a cut forming process. It is a schematic side view to the last winding process of the label manufacturing apparatus 40 without a mount same as the above. It is the perspective view which made the conventional label continuous body 1 the roll form.

    The present invention provides a release agent layer having a function equivalent to solid printing by adding a colorant to the release agent to form a release agent layer, and is colored even without solid printing on a label substrate No labels can be obtained. Further, the area ratio of the coating region in the release agent layer having the coating region and the non-coating region of the release agent is set to 70 to 99%, and the label base material measured by the smoothness test method according to JIS P8119. Smoothness was set to 40 to 1000 seconds, and a barrier layer was provided between the label base material and the pressure-sensitive adhesive layer. A label without a mount and a method for manufacturing the same have been realized in which a problem such as ink transfer to an adherend does not occur.

    A mountless label 10 according to an embodiment of the present invention and a method for manufacturing the same will be described with reference to FIGS. However, the same parts as those in FIG. 8 are denoted by the same reference numerals, and detailed description thereof will be omitted.

1 is a perspective view in which the label 10 without mount is formed into a roll, FIG. 2 is a plan view of the label 10 without mount, and FIG. 3 is a sectional view taken along line III-III in FIG.
The label 10 without the mount includes the label base material 2, an adhesive layer 3 provided on the back surface of the label base material 2, a release agent layer 5 provided on the surface of the label base material 2, and the label base material 2 and adhesive. And a barrier layer 11 between the agent layer 3.

The label substrate 2 has a smoothness of 40 to 1000 seconds measured by a smoothness test method according to JIS P8119.
For example, as the label substrate 2, a coated paper having a thickness of 50 to 120 μm and a rough surface or paper having a rougher surface can be employed.
When the smoothness is less than 40 seconds, the label base material 2 is too rough, and as a result of the ink being soaked into the label base material 2 when stamp printing is performed, the printing is blurred and the printing performance is deteriorated.
When the smoothness exceeds 1000 seconds, it becomes difficult for the ink to sufficiently permeate and diffuse into the label base material 2 when stamp printing is performed, and the printing becomes faint and the printing performance deteriorates.

Moreover, the label base material 2 can also set the sizing degree of the label base material 2 measured by the sizing degree test method by JIS P8122 to 10 to 30 seconds as an index of the ease of ink penetration.
If the sizing degree is less than 10 seconds, the label base material 2 is too rough, and as a result of the ink soaking into the label base material 2 when stamp printing is performed, the printing is blurred and the printing performance is deteriorated.
If the sizing degree exceeds 30 seconds, it becomes difficult for the ink to sufficiently permeate and diffuse into the label base material 2 when stamp printing is performed, and printing becomes faint and printing performance deteriorates.

The pressure-sensitive adhesive layer 3 has a thickness of 10 to 30 μm, and any type of pressure-sensitive adhesive can be applied to the back side of the label substrate 2. For example, a rubber-based or acrylic hot-melt pressure-sensitive adhesive or emulsion pressure-sensitive adhesive can be employed.
In addition, as shown in FIG. 1, about the strip | belt-shaped label base material 2, it is wound in roll shape by making the adhesive layer 3 inside.

As the release agent used for the release agent layer 5, for example, UV-curable silicone, thermosetting silicone, solvent-type silicone, alkyl pendant polymer, fluorine-based release agent, and compositions containing them are used. Is possible.
The release agent layer 5 has an application region 12 and a non-application region 13 of the release agent, and the area ratio of the application region 12 in the release agent layer 5 is set to 70 to 99%. The non-coating region 13 that is not coated is uniformly distributed with respect to the coating region 12 of the release agent.
When the area ratio of the coating region 12 is less than 70%, the adhesion preventing action of the pressure-sensitive adhesive layer 3 by the release agent layer 5 is reduced, and the ink at the time of stamp printing is supplied to the label substrate 2 in a relatively large area. As a result, not only the printing accuracy is lowered, but also the printing is blurred, and the printing performance is lowered.
If the area ratio of the coating region 12 exceeds 99%, the adhesive layer 3 can be prevented from sticking by the release agent layer 5, but the label base material has a sufficient area for stamp printing. However, the printing performance is deteriorated because the printing is faint.

The area ratio of the coating region 12 and the non-coating region 13 in the release agent layer 5 is 99: 1 to 70:30.
If the area ratio exceeds 99: 1, the adhesive layer 3 can be prevented from sticking by the release agent layer 5, but the ink at the time of stamp printing is supplied to the label substrate 2 with a sufficient area. Instead, the printing is faint and the printing performance deteriorates.
When the area ratio is less than 70:30, the action of preventing the adhesive layer 3 from sticking to the release agent layer 5 is reduced, and the ink at the time of stamp printing is supplied to the label substrate 2 in a relatively large area. Therefore, not only the printing accuracy is lowered but also the printing is blurred, and the printing performance is lowered.

The coating amount of the release agent in the release agent layer 5 is desirably 0.1 to 3.0 g / m ² .
When the coating amount is less than 0.1 g / m ² , the sticking prevention effect of the pressure-sensitive adhesive layer 3 by the release agent layer 5 is lowered.
If the coating amount exceeds 3.0 g / m ² , it becomes difficult to form the non-coating region 13 on the surface of the label substrate 2, and as a result, the ink at the time of stamp printing is inward of the release agent layer 5. The ink is not soaked, and the printing is faint and the printing performance is deteriorated.

The coating region 12 and the non-coating region 13 in the release agent layer 5 can be formed by halftone printing the release agent on the surface of the label substrate 2.
As the halftone dot shape of the non-coating region 13, for example, an arbitrary shape such as a triangular shape, a square shape, or a rectangular shape can be adopted as well as a circular shape or an elliptical shape.

    A colorant is added to the release agent layer 5, and the entire label is colored. If the label substrate 2 is white, the label 10 without the mount looks almost the color of the release agent layer 5. When an image (not shown) such as letters is printed on the surface of the label base material 2, the image is visually recognized through the release agent layer 5, so that the color of the release agent layer 5 is the original color of the image. It looks like another mixed color.

As the colorant added to the release agent layer 5, any pigment or dye can be used.
Examples of inorganic pigments include titanium dioxide, zinc white (zinc oxide), iron oxide, chromium oxide, iron black, cobalt blue, alumina white, iron oxide yellow, viridian, zinc sulfide, lithopone, vermilion, cadmium red, yellow Lead, molybdate orange, zinc chromate, strontium chromate, white carbon, cray, talc, ultramarine, precipitated barium sulfate, barite powder, calcium carbonate, lead white, ferrocyanide (bituminous), phosphate (manganese violet), Carbon black is mentioned.

    Examples of organic pigments include rhodamine lake, methyl violet lake, quinoline yellow lake, malachite green lake, alizarin lake, carmine 6B, lake red C, disazo yellow, lake red 4R, chromophthal yellow 3G, chromophthalscarlet RN, nickel. Azo Yellow, Permanent Orange HL, Phthalocyanine Blue, Phthalocyanine Green, Flavanthrone Yellow, Thioindigo Bordeaux, Perrin Red, Dioxadone Violet, Quinacridone Red, Naphthol Yellow S, Pigrant Green B, Lumogen Yellow, Signal Red, Alkaline Blue, Aniline Black.

    In addition to these, colorants used as food additives include, for example, anato dyes, alknet dyes, anthocyanin dyes, turmeric dyes, caramel dyes, carotene dyes, carotenoid dyes, gardenia dyes, cochineal dyes, food tar dyes, copper Chlorophyll, copper chlorophyllin sodium, paprika dye, bemoji dye, safflower dye, flavonoid dye, etc. can be used. Specifically, for example, Amaranth (Red No. 2), Erythrosine (Red No. 3), Allura Red AC (Red No. 40), New Coxin (Red No. 102), Phloxin (Red No. 104), Rose Bengal (Red 105) No.), Acid Red (Red No. 106), Tartrazine (Yellow No. 4), Sunset Yellow FCN (Yellow No. 5), Fast Green FCN (Green No. 3), Brilliant Blue FCF (Blue No. 1), Indigo Carmine (Blue) 2)).

The barrier layer 11 stops the ink penetrating or soaking into the label base material 2 from the non-coating region 13 in the label base material 2 so that the ink can be properly dispersed and retained. Is a layer for preventing soaking into the pressure-sensitive adhesive layer 3 side, so-called bleeding out, and further preventing the pressure-sensitive adhesive layer 3 from penetrating to the surface of the adherend to contaminate it. It is.
As the barrier agent for forming the barrier layer 11, it is possible to select any barrier agent that can prevent the penetration of ink into the pressure-sensitive adhesive layer 3 side, such as an ultraviolet curable resin. In addition, films such as polyethylene, polypropylene, and PET (polyethylene terephthalate) may be laminated.

A transfer slit 14 is formed in the label 10 without mount at a predetermined pitch, and the transfer roller 29 (FIG. 4) is used when the label is transferred in a portable label printing and sticking machine (FIGS. 4, 5 and later). 1 and a single-leaf label piece 10A (FIG. 1).
A perforation 15 composed of an arbitrary number of cuts from both ends of the boardless label 10 to the inward portion is formed in accordance with the transfer slit 14 so that the cutting action by the boardless label cutting unit 25 is easier. Can be.

4 is a side view of the label printing and pasting machine 20 without the portable mount, and FIG. 5 is a side view of the state in which the paper holder 22 and the platen unit 24 are opened.
The portable label printing and pasting machine 20 includes a pair of left and right (front and back) side plates 21, a paper holder 22 for a label 10 without mount, an operation lever 23, a platen unit 24, a label cutting unit 25 without mount, and a printer. 26 and a sticking roller 27.

    The pair of left and right side plates 21 are integrally formed with a grip 28 that can be gripped by the operator, and the operation lever 23 can be gripped and released together with the grip 28.

    The paper holder 22 holds the label 10 having no mount in the form of a roll, and can be supplied in the form of a band in the portable label-less label printing and pasting machine 20.

The platen unit 24 includes a transfer roller 29, a pressing unit 30, and a transfer endless belt 31. The label 10 without a mount is sandwiched between the transfer roller 29 and the pressing unit 30, and the operation lever 23 is operated. At the same time, the label 10 without the mount is transferred in the direction of the transfer endless belt 31, and the transfer endless belt 31 can be further transferred to the lower part of the sticking roller 27.
In addition, by operating the opening / closing knob 32 provided on one side plate 21, the platen unit 24 is opened with respect to the side plate 21, so that the non-mounting label 10 is attached to the portable non-mounting label printing and pasting machine 20. It can be loaded inside.

    The boardless label cutting unit 25 cuts the connecting portion between the transfer slit 14 and the perforation 15 of the boardless label 10 by moving a cutting piece (not shown) in the width direction of the boardless label 10. The single-leaf single-leaf label piece 10A (see FIG. 1).

    The printer 26 has printing characters 33 and ink rollers 34 for various characters and symbols. The ink from the ink roller 34 is transferred to the printing characters 33, and the printer 26 is held by holding the operation lever 23. Printing can be performed by pressing and stamping the non-mounting label 10 (label piece 10A) on the transfer endless belt 31 with a predetermined pressing force.

    The affixing roller 27 enables a single-leaf label piece 10A that has been printed and issued to the outside of the portable boardless label printing affixing machine 20 to be adhered to a predetermined adherend.

    The operator holds the grip 28 and the operating lever 23 to drive the printer 26 and the label-less label cutting unit 25 in the portable mountless label printing and pasting machine 20 and releases the gripping operation. The boardless label 10 is transferred by one pitch by the platen unit 24, and then the boardless label 10 is pasted by the pasting roller 27.

In the label 10 without the mount 10 and the label printing and pasting machine 20 having the above configuration, as shown in FIG. 3 in particular, printing is performed by the pressing operation to the surface of the label 10 without the mount by the printer 26 or its printing type 33. Although the ink of the printing type 33 faces the release agent layer 5 on the uppermost layer side of the label 10 without the mount, the ink of the printing type 33 facing the release agent coating area 12 does not adhere to the coating area 12 It does not penetrate into the label substrate 2.
On the other hand, the ink penetrates into the label substrate 2 only from the printing type 33 portion facing the non-coating region 13 of the release agent (refer to the penetrating inks 35 and 35A shown by phantom lines in FIG. 3). Predetermined printing can be performed. The release agent is colored by the addition of a colorant, but in general, it is easy to see, such as yellow, orange, and red, but the color is not high, so the content printed with black ink is It is sufficiently visible.
In addition, the portion of the penetrating ink 35 that reaches the pressure-sensitive adhesive layer 3 (the penetrating ink 35A in the center in FIG. 3) is blocked from being dispersed or penetrated by the barrier layer 11, and thus penetrates the pressure-sensitive adhesive layer 3. Thus, there is no risk of oozing up to the adherend and contaminating it, and conversely, it is possible to prevent the components of the pressure-sensitive adhesive layer 3 from leaching into the upper label substrate 2.

Further, when the conventional label continuum 1 (FIG. 8) is loaded into the label printing / applying machine, the problem is that the mount 6 that has become unnecessary due to the consumption of the label pieces 8 is elongated and interferes with the work. However, since the mountless label 10 of the present invention does not have the mount 6 itself, such a problem is solved.
Further, since the no-mounting label 10 to be loaded in the portable no-mounting label printing and pasting machine 20 does not have the mounting 6, it can be made thin by the thickness when it is formed into a roll, and a label piece per roll. The number of 8 can be increased. Although this barrierless label 10 is provided with a barrier layer 11, the thickness of the barrier layer 11 is sufficiently thinner than the thickness of the backing 6 (generally 50 to 90 μm). The effect on diameter is negligible.

FIG. 6 is a schematic side view of the mountless label manufacturing apparatus 40 for manufacturing the mountless label 10 up to the cut forming process, and FIG. 7 is a schematic side view of the mountless label manufacturing apparatus 40 until the final winding process. is there.
As shown in FIGS. 6 and 7, the label manufacturing apparatus 40 without mount includes a label base material primary supply unit 41, a printing unit 42, a release agent coating unit 43, a cut forming unit 44, and a primary winding unit. 45 (above, FIG. 6), label base material secondary supply unit 46, barrier agent coating unit 47, adhesive coating unit 48, and secondary winding unit 49 (above, FIG. 7). And a plurality of guide rollers are arranged at necessary portions.

    First, as illustrated in FIG. 6, the label base material primary supply unit 41 includes a primary supply roller 50 and supplies the raw material of the label base material 2 from the primary supply roller 50 in a strip shape.

    The printing unit 42 includes a printing unit 51, a printing plate 52, a printing impression cylinder 53, and an ultraviolet irradiation unit 54, and information necessary on the surface side of the label substrate 2 (for example, the label 10 without mount) Is used as a price tag, fixed information (such as the name of a retail store that sells products) is printed in advance (fixed information printing step).

    The release agent coating unit 43 includes a release agent application unit 55, a halftone dot printing plate 56, a halftone dot printing impression cylinder 57, and an ultraviolet irradiation unit 58. The release agent layer 5 is formed so as to have a release agent coating region 12 and a non-application region 13 (release agent layer forming step).

  A colorant is mixed in advance with the release agent before coating. As the colorant, a desired color is mixed, but one or more types having good compatibility or dispersibility are selected and used depending on the type of release agent used. As a mixing method, an apparatus and a method are appropriately selected according to the viscosity of the release agent, the compatibility of the colorant, and the like. Examples thereof include stirring and mixing using a stirrer, dispersion and mixing using a ball mill, and dispersion using a sand mill. A vibration mill can also be used.

    The cut forming unit 44 includes a die roller 59 and an anvil roller 60, and forms the transfer slit 14 and the perforation 15 (cut forming process).

    The primary winding unit 45 includes a primary winding roller 61, and an intermediate generation substrate 62 in which the release agent layer 5, the transfer slit 14, the perforation 15, and the like are formed on the label substrate 2 is used as the primary winding roller 61. Wind up.

    Next, as shown in FIG. 7, the label base material secondary supply unit 46 has a secondary supply roller 63, and supplies the intermediate generation base material 62 from the secondary supply roller 63 in a strip shape.

    The barrier agent coating unit 47 includes a barrier agent coating unit 64, a barrier agent printing plate 65, a barrier agent printing impression cylinder 66, and an ultraviolet irradiation unit 67. The barrier layer 11 is formed on the substrate (barrier layer forming step).

    The pressure-sensitive adhesive coating unit 48 includes a pressure-sensitive adhesive tank 68, a hot-melt coating head 69, and a chill roller 70. The pressure-sensitive adhesive coating unit 48 coats the pressure-sensitive adhesive further on the back surface side of the barrier layer 11, and The pressure-sensitive adhesive layer 3 is formed on the back surface (pressure-sensitive adhesive layer forming step).

The secondary winding unit 49 includes a secondary winding roller 71 and winds the non-mounting label 10 in a roll shape (final winding process).
The roll-like mountless label 10 is shown in FIG. 1 through a small winding process (not shown) from the secondary winding roller 71 in order to be able to be loaded into the portable mountless label printing and pasting machine 20 or the like. A final product such as a roll-less mountless label 10 is obtained.

Thus, it is possible to prepare a roll or laminated state without the need for the backing paper 6 as the release paper as in the conventional label continuous body 1 (FIG. 8). It is possible to manufacture the mountless label 10 that can be loaded and transported and printed as usual without any trouble.
In addition, the label base material primary supply unit 41, the printing unit 42, the release agent coating unit 43, the cut forming unit 44, the primary winding unit 45, and the label base material secondary supply described above for manufacturing the label 10 without the mount are described. Since the part 46, the barrier agent coating part 47, the adhesive coating part 48, and the secondary winding part 49 can be diverted from the conventional label manufacturing apparatus, the manufacturing cost does not increase.

In addition, it is preferable that the low speed unwinding force by JISZ0237 is 5-300 gf / 50mm (49-2940mN / 50mm) about the obtained roll-shaped mountless label 10. FIG. More preferably, it is 30-250 gf / 50mm (294-2450mN / 50mm), More preferably, it is 30-100gf / 50mm (294-980mN / 50mm).
When the low-speed rewinding force is less than 5 gf / 50 mm, the roll of the non-mounting label 10 may be deformed.
When the low-speed unwinding force exceeds 300 gf / 50 mm, there is an increased risk of tearing or breaking at the transfer slit 14 or perforation 15 when the mountless label 10 is unwound.

    Further, the mountless label manufacturing apparatus 40 is configured to manufacture the mountless label 10 as a series of steps without using the separation steps as shown in FIGS. It is also possible to control.

1 Label continuum (conventional, Fig. 8)
2 Label substrate 3 Adhesive layer 4 Mount substrate 5 Release agent layer 6 Mount 7 Cut 8 Single-leaf label piece 10 Label without mount (Example, FIG. 1)
10A Single-sheet label piece of label 10 without backing sheet 11 Barrier layer 12 Release agent coating region 13 of release agent layer 5 Release agent non-application region 14 of release agent layer 5 Slit for transfer 15 Perforation 20 No portable mount Label printing and pasting machine (Figs. 4 and 5)
21 Side plate 22 Paper holder 23 Operation lever 24 Platen unit 25 Label cutting unit 26 without backing paper 26 Printer 27 Sticking roller 28 Grip 29 Transfer roller 30 Pressing unit 31 Endless belt for transfer 32 Opening / closing knob 33 Printing type 34 Ink roller 35 Ink roller Penetration ink from 35 to label substrate 2 (Fig. 3)
35A In the center of FIG. 3, the penetrating ink 40, which is about to reach the pressure-sensitive adhesive layer 3 from the ink roller 35.
41 Label substrate primary supply section (Fig. 6)
42 Printing part 43 Release agent coating part 44 Cut forming part 45 Primary winding part 46 Label base material secondary supply part (FIG. 7)
47 Barrier coating unit 48 Adhesive coating unit 49 Secondary winding unit 50 Primary supply roller (FIG. 6)
51 Printing unit 52 Printing plate 53 Printing impression cylinder 54 UV irradiation unit 55 Release agent coating unit 56 Halftone printing plate 57 Halftone printing cylinder 58 Ultraviolet irradiation unit 59 Die roller 60 Anvil roller 61 Primary winding roller 62 Intermediate production base 63 Secondary supply roller (FIG. 7)
64 Barrier agent coating unit 65 Barrier agent printing plate 66 Barrier agent printing impression cylinder 67 UV irradiation unit 68 Adhesive tank 69 Hot melt coating head 70 Chill roller 71 Secondary winding roller

Claims (12)

A label substrate;
An adhesive layer provided on the back surface of the label substrate;
A label without a mount having a release agent layer provided on the surface of the label substrate,
The release agent layer has a release agent coating region and a non-coating region;
While the area ratio of this coating region in the release agent layer is 70 to 99%,
The smoothness of the label substrate measured by the smoothness test method according to JIS P8119 is 40 to 1000 seconds,
The release agent layer is colored, and
A mountless label, wherein a barrier layer is provided between the label substrate and the pressure-sensitive adhesive layer.     2. The mountless label according to claim 1, wherein one or more colorants selected from pigments and dyes are added to the release agent layer.     The non-mounting area according to claim 1 or 2, wherein the non-coating area where the release agent is not applied is uniformly distributed with respect to the application area of the release agent. label.     The mountless label according to any one of claims 1 to 3, wherein an area ratio of the coating region and the non-coating region in the release agent layer is 99: 1 to 70:30.     5. The coating region and the non-coating region in the release agent layer are formed by halftone printing the release agent on the surface of the label base material. A label without mount according to Crab. The coating amount of the release agent in the release agent layer, mount unlabeled according to any one of claims 1 to 5, characterized in that this was a 0.1 to 3.0 g / m ^2.     The mountless label according to any one of claims 1 to 6, wherein a sizing degree of the label base material measured by a sizing test method according to JIS P8122 is 10 to 30 seconds.     The label without a mount according to any one of claims 1 to 7, wherein the barrier layer is formed of an ultraviolet curable resin. The label substrate has a band shape, and
The label without a mount according to any one of claims 1 to 8, wherein the label is wound in a roll shape with the pressure-sensitive adhesive layer inside. The label-free label can be transferred by forming a transfer slit at a predetermined pitch on the label base material,
The label without a mount according to any one of claims 1 to 9, wherein a single-leaf label piece can be formed by cutting the label base material in a width direction at a portion of the transfer slit. A strip-shaped label substrate;
An adhesive layer provided on the back surface of the label substrate;
A release agent layer provided on the surface of the label substrate, and a method for producing a label without a mount,
The label base material has a smoothness measured by a smoothness test method according to JIS P8119 of 40 to 1000 seconds,
On the surface of the label substrate, a release agent layer forming step of forming the release agent layer so as to have a release agent coating region and a non-coating region;
A barrier layer forming step of forming a barrier layer on the back surface of the label substrate;
A pressure-sensitive adhesive layer forming step of forming the pressure-sensitive adhesive layer on the back surface of the barrier layer,
A method for producing a label without mount, wherein a colorant is added to the release agent, and the label base material is colored by coating the release agent.     The method for producing a non-mounting label according to claim 11, wherein the colorant is selected from one or a plurality of pigments and dyes.

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