JP2017009850A - Display base material and labelled container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display base material that can easily find an interpolated print such as freshness date.SOLUTION: A display base material 1 includes a base material 2, and an ink receptive layer 3 provided on a surface of the base material 2 and fixing ink containing coloring agent, a portion or all of the ink receptive layer 3 includes a removable layer 31 which can be removed by an organic solvent.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a display base material on which desired characters can be printed by an ink jet printer or the like and a labeled container using the display base material.

Labels, pouch bags, pillow packaging bags, and the like are formed from a flexible substrate. On such a base material, a design pattern representing a desired pattern such as a trade name is printed. In addition, a substrate on which an on-demand pattern can be printed after a product is manufactured is also used. Examples of on-demand patterns include traceability patterns such as date of manufacture, expiration date, and manufacturing code.
Here, in this specification, “pattern” refers to a symbol that conveys words such as letters and numbers, a symbol that indicates an idea such as a figure or a pattern, a mechanically readable symbol such as a two-dimensional code, and a lattice pattern. Geometric patterns, irregular or irregular patterns, etc. are included.
In a specific manufacturing process, a substrate on which a design pattern is printed is formed into a desired shape, a number of labels are prepared in advance, and the labels are attached to a container filled with contents by means such as attaching. As a result, a product (a container with a label) is obtained, and after printing an on-demand pattern such as an expiration date (hereinafter referred to as an on-demand pattern) on the print scheduled area on the surface of the label, Shipped. The design pattern is a pattern determined in advance for each product, and the on-demand pattern is a pattern given at the time of manufacturing the product.
Since the design pattern is determined in advance, the same pattern such as gravure printing is performed by plate-type printing that can be printed continuously and at high speed. This is performed by plateless printing such as printing or thermal printing (thermal transfer printing) (Patent Document 1).

By the way, after the Service-to-Self wipes and removes the on-demand pattern such as the expiration date shown on the surface of the label (base material) by the ink-jet printing or the like with an organic solvent, It is conceivable to print a demand pattern.
Thus, when a regular on-demand pattern is falsified, it is required to devise so that it can be identified at a glance.

JP 2008-229926 A

  An object of the present invention is to provide a display substrate and a labeled container that can easily find out that an on-demand pattern such as a shelf life has been altered.

  The display substrate of the present invention has a base substrate and an ink receiving layer that is provided on the surface of the base substrate and fixes an ink containing a colorant, and a part or all of the ink receiving layer Is composed of a removable layer removable by an organic solvent.

The display substrate is used as a packaging material accessory such as a label or a material for forming a packaging material such as a packaging bag.
After the display substrate is formed into a form such as a packaging accessory, an on-demand pattern such as a shelf life is printed on the ink receiving layer of the display substrate. Since part or all of the ink receiving layer is composed of a removable layer that can be removed by an organic solvent, the Service-to-Self wipes off the display with an organic solvent to remove the regular on-demand pattern. And the removable layer is removed. After that, even if the Service-to-Self prints an illegal on-demand pattern, the removable layer, which is a part or all of the ink receiving layer, has been removed. Easy to distinguish.

In a preferred display substrate of the present invention, a back printed layer is provided on the back surface of the base substrate corresponding to the removable layer.
The preferable display base material of this invention has the pattern printing part in which the said back surface printed layer represented the pattern.
In a preferred display substrate of the present invention, the removable layer is opaque.
The preferable display base material of this invention has the pattern printing part in which the said back surface printed layer represented the pattern, and the non-patterned background printing part provided in the back surface of the said pattern printing part, The said removable layer However, it is colored and transparent, one of the pattern printing portion and the background printing portion is white and the other is the same color as the removable layer.
As for the preferable display base material of this invention, the pattern of the said pattern printing part is concealed by the said removable layer seeing from the surface side.
In a preferred display substrate of the present invention, the removable layer has a printing plate shape portion.
In a preferred display substrate of the present invention, a pattern is printed on at least the removable layer of the ink receiving layer using an ink containing a colorant.

According to another aspect of the present invention, a labeled container is provided.
The labeled container of the present invention has a label formed from the display substrate and a container, and the label is attached to the container in a state where the back side corresponding to the removable layer is in close contact with the container. It has been.

  In the display substrate of the present invention, a part or all of the ink receiving layer is composed of a removable layer that can be removed by an organic solvent. Even if a demand pattern is printed, the tampering can be easily determined.

The top view which looked at the display base material of 1st Embodiment from the surface side. The top view which looked at the display base material from the back side. The expanded sectional view cut | disconnected by the III-III line (lateral direction) of FIG. The expanded sectional view cut | disconnected by the IV-IV line (vertical direction) of FIG. The perspective view of a heat-shrinkable cylindrical label. The front view of the container with a label. The top view which looked at the display base material of the 1st example of a 2nd embodiment from the surface side. The expanded sectional view cut | disconnected by the VIII-VIII line (horizontal direction) of FIG. The top view which looked at the display base material of the 2nd example of a 2nd embodiment from the surface side. The top view which looked at the display base material of the 3rd example of a 2nd embodiment from the surface side. The top view which looked at the display base material of the 4th example of a 2nd embodiment from the surface side.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
However, in this specification, the numerical range represented by “to” means a numerical range including numerical values before and after “to” as the lower limit value and the upper limit value.
It should be noted that the shape, size, thickness of each layer, the relative ratio thereof, and the like shown in each drawing are different from actual dimensions.

[First Embodiment]
<Display substrate>
FIG. 1 is a plan view of the display substrate of the present invention as viewed from the surface side, and FIGS. 3 and 4 are cross-sectional views cut along respective parts of the display substrate.
As will be described later, the display substrate of the present invention is used as a forming material for labels and the like.
1 to 4, the display substrate 1 includes a base substrate 2 and an ink receiving layer 3 provided on a part of the surface of the base substrate 2, and preferably a back printed layer. 4.

  The base substrate 2 is not particularly limited as long as it is a flexible sheet material. For example, a synthetic resin sheet, a foamed resin sheet, paper, synthetic paper, or a laminated sheet containing at least one selected from these is used. Preferably, a synthetic resin sheet or a laminated sheet thereof is used. The laminated sheet may be integrally laminated with a barrier layer such as a gas barrier layer or a light barrier layer. Examples of the barrier layer include a metal foil such as an aluminum foil or a metal vapor deposition film. The barrier layer may be included as a part of the base substrate when the base substrate 2 is formed, but may be included in the display substrate 1.

The material of the synthetic resin sheet is not particularly limited, and conventionally known materials can be used. For example, polyethylene terephthalate film, polyester resin such as polylactic acid; polyolefin resin such as polypropylene, polyethylene, and cyclic olefin resin; Examples thereof include polystyrene resins such as polystyrene and styrene-butadiene copolymers; one or a mixture of two or more selected from thermoplastic resins such as polyvinyl chloride resins.
The base substrate 2 may be transparent or opaque. However, in the present embodiment in which the back printed layer 4 is provided, the transparent base substrate 2 is provided so that the back printed layer 4 can be viewed from the front side. Used. The total light transmittance of the transparent base substrate 2 is, for example, 70% or more, preferably 80% or more, and more preferably 90% or more. The said total light transmittance says the value measured by the measuring method based on JISK7361 (the test method of the total light transmittance of a plastic-transparent material).
The thickness of the base substrate 2 is not particularly limited. The base substrate 2 is, for example, 15 μm to 500 μm although it depends on the material of the sheet material.

The base substrate 2 may be a sheet material having heat shrinkability and / or self-stretchability.
The heat-shrinkable sheet material is also called a shrink film or the like, and is a sheet material having a property of shrinking when heated to a predetermined temperature (for example, 70 ° C. to 100 ° C.). The sheet material having the self-stretch property is also called a stretch film or the like, and has a property of extending by applying an expansion force (without the heat shrinkability as described above) and restoring almost by releasing the expansion force. It is a sheet material to have. The sheet material having heat shrinkability and self-stretchability is also called a stretch shrink film or the like, and is a sheet material having both the heat shrinkability and self-stretchability.
When the base substrate 2 is a sheet material having heat shrinkability and / or self-stretchability, the sheet material is usually a synthetic resin sheet or a laminated sheet including a synthetic resin sheet. The thickness of the sheet material having heat shrinkability and / or self-stretchability is not particularly limited, and is, for example, 15 μm to 100 μm. Specifically, the thickness of the heat-shrinkable sheet material is, for example, 20 μm to 80 μm, and the thickness of the self-stretchable sheet material is, for example, 60 μm to 100 μm.

As the sheet material having heat shrinkability, a sheet material that can be thermally shrunk at least in the lateral direction at a heat shrink temperature (for example, 70 ° C. to 100 ° C.) is used. Further, the sheet material having heat shrinkability may be one that can be thermally contracted or stretched in the longitudinal direction (the longitudinal direction is a direction orthogonal to the lateral direction in the plane of the sheet material). For example, the heat-shrinkable sheet material preferably has a heat shrinkage rate in the transverse direction of 30% or more when heated to 85 ° C., more preferably 40% or more, and particularly preferably 50% or more. preferable. Further, when the sheet material can be thermally contracted or stretched in the longitudinal direction, the thermal contraction rate in the longitudinal direction when the sheet material is heated to 85 ° C. is −3% to 15%, preferably 1% to 10%. In addition, the minus of thermal contraction rate means thermal elongation.
Here, the heat shrinkage rate when heated to 85 ° C. is the length of the sheet material having the heat shrinkability before heating (original length) and the sheet material is immersed in warm water at 85 ° C. for 10 seconds. It is the ratio of the length (length after immersion) of the sheet material after having been used. The said heat shrinkage rate is calculated | required by substituting into a following formula.
Formula: heat shrinkage rate (%) = [{(original length in the lateral direction (or longitudinal direction) of the sheet material) − (length after immersion in the lateral direction (or longitudinal direction) of the sheet material)} / ( The original length in the lateral direction (or longitudinal direction) of the sheet material)] × 100.

The stretching property of the sheet material having self-stretching property is not particularly limited. For example, the sheet material can be stretched in the lateral direction to a stretching ratio of 1.25 times or more (the upper limit is, for example, 1.8 times), and 1 It is preferable that the instantaneous strain (50 mm / min) after stretching by 25 times is 10.5% or less.
The instantaneous strain can be measured as follows.
A sheet material having self-stretchability is cut into a rectangle having a length of 15 ± 0.1 mm in the vertical direction and a length of 200 mm in the horizontal direction (distance between marked lines 100 ± 2 mm) to produce a sample piece. Using the long side direction of the sample piece as a measurement direction, the sample piece is pulled until a predetermined stretching magnification (1.25 times) is obtained, and the distance between the marked lines of the sample piece is measured. The measurement is performed by, for example, using a constant crosshead speed type or pendulum type tensile tester (extension speed at the time of test: 50 mm / min), applying a predetermined load (N), and the distance between the marked lines of the sample pieces is the extension magnification. Extend until 1.25 times, and immediately after this, read the distance between marked lines when the load is returned to 0 (N). By substituting the measured value into the following formula, the instantaneous strain (%) is calculated.
Instantaneous strain (%) = 100 × ΔL2 / L2.
The L2 indicates the distance (mm) between the marked lines of the sample pieces before pulling, and the ΔL2 indicates the increase (mm) in the distance between the marked lines of the sample pieces when the load is returned after stretching.

  The planar view shape of the base substrate 2 (display substrate 1) is not particularly limited, but is usually formed in a rectangular or square shape in plan view. In addition, the display base material 1 of the example of illustration is formed in the magnitude | size for producing one label (packaging accessory). But the display base material 1 may be formed in the magnitude | size which can produce several packaging material accessories and packaging materials. Such a display substrate 1 is usually formed in a long band shape (rectangular shape in plan view) whose length in the length direction is sufficiently larger than the length in the width direction. The long strip-shaped display substrate 1 is cut into an appropriate length and used when a packaging accessory or a packaging material is produced.

An ink receiving layer 3 is provided on a part of the surface of the base substrate 2. The ink receiving layer 3 may be provided on the entire surface of the base substrate 2, but is preferably provided on a part of the surface of the base substrate 2. In the case where the ink receiving layer 3 is partially provided on the surface of the base substrate 2, it may be provided at one place, or may be provided dispersed at two or more places. The formation position of the ink receiving layer 3 is not particularly limited, and is provided at an appropriate position.
The plan view shape of the ink receiving layer 3 is not particularly limited, and examples thereof include a rectangular shape or a square shape. In the illustrated example, the ink receiving layer 3 is formed in a rectangular shape in plan view with the long side in the horizontal direction and the short side in the vertical direction. The size of the ink receiving layer 3 is not particularly limited. For example, when an on-demand pattern in which numbers are arranged in the horizontal direction is printed, the size of the ink receiving layer 3 is, for example, vertical x Horizontal = 5 mm to 20 mm × 10 mm to 50 mm. Examples of the on-demand pattern in which numbers are arranged in the horizontal direction include the expiration date and the date of manufacture.
The ink receiving layer 3 is a layer for fixing ink containing a colorant. Since this ink represents an on-demand pattern as will be described later, it is an ink containing a colorant (hereinafter referred to as on-demand ink).

A part or the whole of the ink receiving layer 3 is composed of a removable layer 31. The removable layer 31 is a layer that fixes the on-demand ink, and is a layer that can be removed by an organic solvent.
In the present embodiment, the entire ink receiving layer 3 is composed of the removable layer 31. That is, the entire ink receiving layer 3 can be removed by the organic solvent. Examples of the organic solvent for removing the removable layer 31 (ink receiving layer 3) include various organic solvents described later. In particular, as the organic solvent for removing the removable layer 31, a solvent that dissolves at least the resin component constituting the removable layer is used.
The removable layer 31 may be composed of one layer or may be composed of a laminate of two or more layers.

  The removable layer 31 may be a layer in which the forming material of the removable layer 31 is continuously formed in the surface direction of the base substrate 2 without a gap, or the forming material is dotted innumerably in a dot shape. However, it may be a layer when viewed as a whole. Microscopically, when forming a layer dotted with dots, there are gaps between the forming materials scattered with dots. Since the on-demand ink can be uniformly fixed, it is preferable that the removable layer 31 is continuously formed as a single layer without any gap in the surface direction of the base substrate 2.

  Moreover, it is preferable that the removable layer 31 has a printing plate shape part. The printing plate shape portion is formed on the edge of the removable layer, and preferably formed on the entire periphery of the removable layer 31. When the entire ink receiving layer 3 is the removable layer 31 as in the present embodiment, it can be said that the printing plate shape portion is formed on the entire periphery of the ink receiving layer 3. In the removable layer 31 having the printing plate shape portion, when the layer 31 is removed with an organic solvent, the printing plate shape portion also disappears, so that it is easy to find falsification. The printing plate shape portion is a trace of a plate formed by a plate printing method, and can be said to be a plate. The printing plate shape portion can be said to be a cell when the removable layer 31 is formed using a gravure printing method, for example, and can also be called a marginal zone when the removable layer 31 is formed using a flexographic printing method. The printing plate shape portion can be confirmed by staring at the edge of the removable layer 31, but can be clearly confirmed by visual observation using a magnifying glass or a loupe.

The removable layer 31 may be transparent (colorless transparent or colored transparent) or opaque, but is preferably opaque. Here, in the present specification, “opaque” means that the pattern provided on the back side of the opaque layer is shielded from light so that it cannot be distinguished from the front side of the opaque layer. The opaque layer can be formed by, for example, a printing method using an ink containing a pigment having a high light shielding property such as a white pigment or a silver pigment.
The total light transmittance of the opaque removable layer 31 is, for example, 30% or less, preferably 20% or less, more preferably 10% or less. Further, the total light transmittance of the transparent removable layer 31 is, for example, 70% or more, preferably 80% or more, and more preferably 90% or more. The total light transmittance is a test piece provided with a removable layer on a base substrate having a total light transmittance of 90% or more, and this is used as a test piece of JIS K 7361 (Testing method for total light transmittance of plastic-transparent material). ) Is a value measured by a measurement method based on
Moreover, although some pattern may be represented on the surface of the removable layer 31, it is preferable that the removable layer 31 is unpatterned.

The material for forming the removable layer 31 is not particularly limited as long as the on-demand ink can be fixed and removed with an organic solvent. Examples of the material for forming the removable layer 31 include ink containing an organic solvent, a resin component, and a colorant (hereinafter referred to as “removable ink”). The removal ink may contain various additives as necessary. Each compounding quantity of the said organic solvent, a resin component, a coloring agent, and the additive added as needed can be set according to the conventional printing ink.
The organic solvent of the removal ink is not particularly limited as long as it can dissolve the resin component. For example, esters such as ethyl acetate and n-butyl acetate; aromatic hydrocarbons such as toluene and benzene; Examples thereof include aliphatic hydrocarbons such as n-hexane and n-heptane; alicyclic hydrocarbons such as cyclohexane and methylcyclohexane; ketones such as methyl ethyl ketone and methyl isobutyl ketone; alcohols such as isopropyl alcohol. These organic solvents can be used alone or in combination of two or more.

Examples of the resin component of the removal ink include acrylic resins, urethane resins, acrylic-urethane copolymer resins, polyester resins, vinyl chloride resins, vinyl chloride-vinyl acetate copolymer resins, polyamide resins, Examples include polyolefin resins and ketone resins.
Examples of the colorant for the removal ink include white pigments, silver pigments, pigments or dyes that exhibit colors other than white and silver. Examples of white pigments include titanium dioxide, zinc white, calcium carbonate, clay, and alumina white. Examples of silver pigments include mixed pigments in which black pigments such as powdered aluminum and carbon black and white pigments are mixed in an appropriate amount.
Examples of the additive include waxes, lubricants, dispersants, stabilizers, thickeners, antifoaming agents, fungicides, and the like.

Since the on-demand pattern can be clearly seen, the removable layer 31 is preferably white or silver and has no pattern, more preferably white and no pattern. The removable layer 31 exhibiting white or silver color can be formed using a removal ink containing a white pigment or a removal ink containing a silver pigment.
The removal ink is preferably an evaporation drying type according to the classification of the solidification method. The removable layer 31 can be formed by applying evaporative drying type removal ink to the surface of the base substrate 2 by a known printing method, volatilizing the organic solvent and drying.
Examples of drying of the removal ink include natural drying and forced drying using warm air.
The printing method for forming the removable layer 31 is not particularly limited, and may be either plate-type or non-plate-type. However, since the removable layer having the printing plate shape portion can be easily formed, plate-type printing is possible. The method is preferred. The plate printing method is a printing method using a plate such as a relief plate or an intaglio plate, and the plateless printing method is a printing method in which ink is directly attached to a substrate without using such a plate. Examples of the plate printing method include a gravure printing method using a gravure plate, a flexographic printing method using a flexographic plate, and a letterpress rotary printing method. It is preferable to form the removable layer 31 by using a gravure printing method because a printing plate shape portion that can be visually distinguished can be formed.
The removable layer 31 may have a single layer structure or a multilayer structure. The removable layer 31 having a multi-layer structure can be formed by printing the removal ink so as to overlap two or more times in the thickness direction.
The thickness of the removable layer 31 is not specifically limited, For example, it is 0.5 micrometer-5 micrometers, Preferably, it is 1 micrometer-3 micrometers.

  If necessary, a line pattern may be printed along the edge of the removable layer 31 or in the vicinity of the outer side of the removable layer 31 so that it can be seen as a mere line by normal visual inspection, but can be visually recognized as a character when enlarged by a magnifying glass. Good. This line pattern is preferably printed using a printing ink that can be removed by an organic solvent. By forming such a line pattern, when the removable layer 31 is removed, the line pattern can also be lost together with the removable layer 31, so that it is easier to find tampering.

The back surface printed layer 4 is provided on the back surface of the base substrate 2 corresponding to the removable layer 31. The back surface printed layer 4 should just be provided so that the back surface printed layer 4 and the removable layer 31 may overlap in planar perspective. Note that the planar perspective conceptually means that a line of sight is perpendicular to the surface of the display substrate and a target member in the direction of the line of sight is seen through.
As for the case where the back surface printed layer 4 and the removable layer 31 overlap, in planar perspective, (1) the back surface printed layer 4 and the removable layer 31 completely overlap, (2) one of the back surface printed layers 4 (3) Back surface, when the portion overlaps with the removable layer 31 and a part of the back surface printed layer 4 does not overlap with the removable layer 31 and further a part of the removable layer 31 does not overlap with the back surface printed layer 4 When the entire printing layer 4 overlaps the removable layer 31 and a part of the removable layer 31 does not overlap the back surface printing layer 4, (4) the entire removable layer 31 overlaps the back surface printing layer 4 and the back surface printing In the case where a part of the layer 4 does not overlap the removable layer 31, etc.

In the case of (1), the back surface printed layer 4 and the removable layer 31 have the same shape in plan view, and the outer edge of the back surface printed layer 4 matches the outer edge of the removable layer 31.
In the case of (2), the back surface printed layer 4 and the removable layer 31 have the same shape in plan view, and a part of the back surface printed layer 4 and a part of the removable layer 31 overlap, or the back surface printed layer 4 The planar view shape is larger or smaller than the planar view shape of the removable layer 31, and a part of the back surface printed layer 4 and a part of the removable layer 31 overlap each other.
In the case of (3), the planar view shape of the back surface printed layer 4 is smaller than the planar view shape of the removable layer 31, and a part of the removable layer 31 protrudes from all or part of the outer edge of the back surface printed layer 4. Yes.
In the case of (4), the planar view shape of the removable layer 31 is smaller than the planar view shape of the back surface printed layer 4, and a part of the back surface printed layer 4 protrudes from all or part of the outer edge of the removable layer 31. Yes.
The illustrated example is the case of (3) above. Specifically, the back surface printed layer 4 is such that the shape of the back surface printed layer 4 is smaller than that of the removable layer 31 and a part of the removable layer 31 protrudes from the entire outer edge of the back surface printed layer 4. 4 and a removable layer 31 are formed.
Although the planar view shape of the back surface printed layer 4 is not specifically limited, For example, the back surface printed layer 4 is formed in the planar view rectangular shape.

The back surface printing layer 4 is preferably a printing layer including a transparent part and an opaque part, or an entirely opaque printing layer. The total light transmittance of the opaque back surface printed layer 4 is, for example, 30% or less, preferably 20% or less, and more preferably 10% or less. The total light transmittance is a value measured by a measurement method based on JIS K7361 using a base substrate having a total light transmittance of 90% or more provided with a back printed layer as a test piece.
The back surface printing layer 4 is formed using a conventionally known printing ink. The back printed layer 4 may be removable with an organic solvent, or may not be removed with an organic solvent.
The back surface printing layer 4 may be a layer in which the forming material (printing ink) of the back surface printing layer 4 is continuously formed without a gap in the surface direction of the base substrate 2, or the forming material is in the form of dots. It may be innumerable and layered when viewed as a whole.
The back printed layer 4 may be composed of one layer or may be composed of a laminate of two or more layers.
The thickness of the back surface printed layer 4 is not specifically limited, For example, it is 0.5 micrometer-5 micrometers, Preferably, it is 1 micrometer-3 micrometers.

For example, the back surface printing layer 4 includes a pattern printing unit 41 representing a pattern, and preferably further includes a background printing unit 42 on the back surface of the pattern printing unit 41. 3 and 4, the pattern printing unit 41 is shown as filled.
The pattern printing unit 41 is a printed layer that represents a desired pattern. The pattern of the pattern printing unit 41 is not particularly limited, but a pattern that can identify that an illegal act has been performed is preferable. Examples of such a pattern include characters such as “caption”, symbols such as graphics and patterns meaning fraudulent acts, and the like.
The pattern printing unit 41 may continuously form a layer without any gap in the surface direction of the base substrate 2, but the printing ink is dotted to represent the pattern.
The color of the pattern represented by the pattern printing unit 41 is not particularly limited on the condition that the pattern can be viewed from the surface side of the base substrate 2 in a state where the removable layer 31 is removed, but is concealed by the removable layer 31. Such a color is preferable.
Since the pattern of the pattern printing unit 41 is concealed by the removable layer 31, the pattern of the pattern printing unit 41 is transparently identified from the surface of the removable layer 31 when viewed from the surface side of the display substrate 1. This prevents the on-demand pattern printed on the removable layer 31 (ink receiving layer 3) from overlapping with the pattern of the pattern printing unit 41 and becoming difficult to see.
The pattern of the pattern printing unit 41 may be represented by white printing ink.

The background printing unit 42 is provided on the back surface of the pattern printing unit 41. The background printing unit 42 is preferably non-patterned, more preferably non-patterned and opaque.
The background printing unit 42 can be formed by printing printing ink on the back surface of the pattern printing unit 41. The background printing unit 42 may be provided including the entire back surface of the pattern of the pattern printing unit 41, or may be provided including a part of the back surface of the pattern of the pattern printing unit 41. In the illustrated example, the background printing unit 42 is provided including the entire back surface of the pattern printing unit 41. Moreover, a part of the background printing unit 42 exists in the pattern gap of the pattern printing unit 41, and the background printing unit 42 is visible from the surface side of the base substrate 2 with the removable layer 31 removed. it can.
The color of the background printing unit 42 is preferably different from the color of the pattern of the pattern printing unit 41 so that the pattern of the pattern printing unit 41 can be clearly seen.

In the case where the back surface printing layer 4 includes the pattern printing unit 41 and the background printing unit 42, as a form in which the pattern of the pattern printing unit 41 is concealed when viewed from the front surface side of the display substrate 1, for example, Examples include a) to (c).
(A) The removable layer 31 is opaque.
If the removable layer 31 is opaque, the pattern of the pattern printing unit 41 provided on the back side corresponding to the removed print layer 31 from the front side of the display substrate 1 is seen through from the front side of the display substrate 1. Disappear.
(B) The removable layer 31 is colored and transparent, the color of the pattern printing unit 41 is the same as the color of the removable layer 31, and the color of the background printing unit 42 is white.
Since the removable layer 31 having the same color and the pattern printing unit 41 overlap on the surface of the white background printing unit 42, the pattern of the pattern printing unit 41 becomes invisible from the surface side of the display substrate 1. For example, when the removable layer 31 is yellow and transparent, the pattern printing unit 41 is also yellow.
(C) The removable layer 31 is colored and transparent, the color of the pattern printing unit 41 is white and the pattern of the pattern printing unit 41 is outlined, and the color of the background printing unit 42 is the same as the color of the removable layer 31 If it is.

  Since the colored and transparent removable layer 31 overlaps the surface of the white pattern printing unit 41, when the ink is viewed from the surface side of the display substrate 1, the white portion of the pattern printing unit 41 in the removable layer 31 is outlined. The color of the removable layer 31 can be seen in the part corresponding to the part other than. Since the pattern printing unit 41 represents a white pattern, the color of the background printing unit 42 can be seen in the white part when viewed from the front side, but the color of the background printing unit 42 can be removed from the layer 31. Since it is the same, the pattern of the pattern printing unit 41 becomes invisible from the surface side of the display substrate 1.

As described above, the display substrate 1 of the present invention is provided with the ink receiving layer 3 including the removable layer 31 on the surface of the base substrate 2, and on the back surface of the base substrate 2 corresponding to the removable layer 31. Although the printing layer 4 is provided, the design printing layer on which the design pattern is represented is provided on the back surface or the front surface or the back surface and the surface of the base substrate 2 except the surface of the removable layer 31 as necessary. It is done. The design print layer is not shown.
Specifically, a design printing layer is provided in an area of the base substrate 2 where the removable layer 31 (ink receiving layer) is not provided. But the said design printing layer is provided in the whole area | region in which the removable layer 31 (ink receiving layer) is not provided, or a part of the area | region. The design print layer may be provided so that the design can be visually recognized from the front surface side, and the design print layer may be provided on the back surface or the front surface of the base substrate 2 or on the back surface and the front surface. Preferably, the design print layer is provided on the back surface of the base substrate 2 in a region where the removable layer 31 (ink receiving layer) is not provided.
In addition, various conventionally known structures or layers may be added to the display substrate 1 of the present invention.

<Label>
The display substrate 1 of the present invention is used after being processed into a packaging accessory such as a label or a packaging material such as a packaging bag. When producing a packaging accessory or a packaging material, if necessary, a separate sheet material bonded to the display substrate 1 of the present invention may be processed into a packaging accessory or packaging material. .
FIG. 5 shows a label 5 formed using the display substrate 1 of the present invention.
This label 5 is a label formed in a cylindrical shape (hereinafter referred to as a heat-shrinkable cylindrical label) when heated to a predetermined temperature, and is attached to a packaging material such as a container or a packaging box. used.

The display substrate 1 that forms the heat-shrinkable cylindrical label 5 is a base substrate 2 having heat-shrinkability. One side edge of the display base material 1 is rolled up with the surface of the display base material 1 facing outward so that the heat shrink direction of the display base material 1 (in the above description, the lateral direction of the display base material 1) is the circumferential direction. The heat-shrinkable cylindrical label 5 is configured by overlapping and adhering to the other side end.
For example, the heat-shrinkable cylindrical label 5 is externally fitted to the container 6 and heated to a predetermined temperature, whereby a labeled container 7 as shown in FIG. 6 is obtained. In such a labeled container 7, the label 5 is attached to the container 6 with the back side corresponding to the removable layer 31 in close contact with the outer surface of the container 6.

As shown in FIG. 6, the heat-shrinkable cylindrical label 5 is printed on the ink receiving layer 3 to represent an on-demand pattern such as a shelf life. The on-demand pattern is printed using on-demand ink with a plateless printing machine such as a digital printer, an inkjet printer, a thermal printer, or a laser printer. The on-demand pattern does not have a printing plate shape portion. The on-demand pattern may be printed immediately before the heat-shrinkable cylindrical label 5 is attached to the container 6, or may be printed after the heat-shrinkable cylindrical label 5 is attached to the container 6.
The on-demand pattern is a pattern other than the pattern displayed when the display substrate 1 is manufactured. For example, as shown in FIG. 6, the date of manufacture, the expiration date, the manufacturing lot, the prize information, the bag, and the like can be given. .
The on-demand pattern is a pattern that disappears when the removable layer 31 is removed with an organic solvent. The on-demand ink constituting the on-demand pattern may be an ink that can be removed with an organic solvent or an ink that cannot be removed with an organic solvent. On-demand patterns made of ink that cannot be removed with an organic solvent are not dissolved in the organic solvent by themselves, but are removed together with the removable layer 31.

Since the display substrate 1 of the present invention (and a label using the same) is provided with the ink receiving layer 3 including the removable layer 31, the on-demand ink is fixed on the ink receiving layer 3, and the on-demand pattern is formed. Can be expressed clearly.
When the Service-to-Self wipes the on-demand pattern with an organic solvent to tamper with the on-demand pattern of the display substrate 1 (and label), the removable layer 31 is removed together with the on-demand ink. Even if a Service-to-Self prints an on-demand pattern after the removable layer 31 is removed, the removable layer 31 does not exist, so that it can be easily detected that the falsified appearance.

  In the present embodiment in which the back surface printed layer 4 is provided corresponding to the back surface of the removable layer 31, when the removable layer 31 is removed, in the region where the removable layer 31 is provided, The back printed layer 4 can be visually recognized from the front surface side of the display substrate 1. By visually recognizing this back surface printed layer 4, it can be easily determined that it has been tampered with. In particular, when the back surface printing layer 4 has the pattern printing part 41, the pattern of the pattern printing part 41 can be visually recognized, so that it becomes easier to discriminate falsification. Further, when the background printing portion 42 of the back surface printing layer 4 has a color different from that of the removable layer 31, the color of the background printing portion 42 having a different color after the removal of the removable layer 31 can be visually recognized. It becomes easier to distinguish. Further, since the size of the back printed layer 4 is smaller than that of the ink receiving layer 3, the back printed layer 4 cannot be visually recognized in a state where a regular on-demand pattern is represented, and when the removable layer 31 is removed, Since the printed layer 4 can be visually recognized, it becomes easier to discriminate falsification.

  The display substrate and the label of the present invention are not limited to the first embodiment, and can be variously changed within the range intended by the present invention. Hereinafter, other embodiments of the present invention will be described. However, the configuration different from the above-described embodiment will be mainly described, and the description of the same configuration and the like may be omitted, and the terms and reference numbers may be used. is there.

[Second Embodiment]
In the first embodiment, the entire ink receiving layer 3 is composed of the removable layer 31, but part of the ink receiving layer 3 is composed of the removable layer 31 and the remainder of the ink receiving layer 3 is the organic solvent. May be impossible to remove (hereinafter, a layer that cannot be removed with an organic solvent is referred to as an unremovable layer).
For example, as shown in FIGS. 7 and 8, the ink receiving layer 3 includes a removable layer 31 and a non-removable layer 32, and the removable layer 31 and the non-removable layer 32 are desired on the surface of the base substrate 2. It is provided in the place.

The non-removable layer 32 is a layer that fixes the on-demand ink in the same manner as the removable layer 31. The non-removable layer 32 is preferably opaque. Although some pattern may be represented on the surface of the non-removable layer 32, the non-removable layer 32 is preferably non-patterned. The non-removable layer 32 and the removable layer 31 may exhibit different colors, but preferably both layers 31 and 32 have the same color. By comprising the non-removable layer 32 and the removable layer 31 of the same color, the boundary between the layers 31 and 32 becomes inconspicuous.
The removable layer 31 and the non-removable layer 32 are arranged side by side. The outer edge of the removable layer 31 and the outer edge of the non-removable layer 32 may be in contact with each other or separated from each other, or a part of the removable layer 31 and a part of the non-removable layer 32 overlap each other. Also good. Preferably, both layers 31 and 32 are formed so that the outer edge of the removable layer 31 and the outer edge of the non-removable layer 32 are in contact with each other.

For example, the removable layer 31 and the non-removable layer 32 are formed in an island sea shape in plan view.
In the first example shown in FIGS. 7 and 8, the non-removable layer 32 is provided so as to surround the periphery of one removable layer 31 in plan view. In FIG. 7, in order to illustrate the removable layer 31 and the non-removable layer 32 in an easy-to-understand manner, the removable layer 31 is shaded, and countless dots are added to the non-removable layer 32 (FIGS. 9 to 9). The same applies to FIG. 11).
In the second example shown in FIG. 9, the non-removable layer 32 is provided so as to surround a plurality (two or more) of removable layers 31. The plurality of removable layers 31 may not be surrounded by the non-removable layer 32.
7 to 9, the non-removable layer 32 is the sea, and the removable layer 31 is an island.

For example, the removable layer 31 and the non-removable layer 32 are formed in a stripe shape in plan view.
In the third example shown in FIG. 10, a removable layer 31 is provided between a pair of non-removable layers 32 extending in the horizontal direction and provided at a predetermined interval in the vertical direction. ing. The removable layer 31 and the non-removable layer 32 are both formed in a band shape in plan view. It should be noted that a strip-like non-removable layer 32 may be provided between a pair of strip-like removable layers 31 extending in the lateral direction (not shown), or the strip-shaped removable layer 31 extending in the lateral direction and the removal. A plurality of impossible layers 32 may be provided alternately in the vertical direction.
In the fourth example shown in FIG. 11, a removable layer 31 is provided between a pair of non-removable layers 32 extending in the horizontal direction and provided at a predetermined interval in the vertical direction. ing. The removable layer 31 and the non-removable layer 32 are both formed in a band shape in plan view. It should be noted that a strip-like non-removable layer 32 may be provided between a pair of strip-like removable layers 31 extending in the vertical direction, not particularly shown, or the strip-like removable layer 31 extending in the vertical direction and the removal. A plurality of impossible layers 32 may be provided alternately in the lateral direction.

  Similarly to the first embodiment, the display substrate 1 of the present embodiment is used after being processed into a label or the like, and an on-demand pattern is printed on the surface of the ink receiving layer 3. The ink receiving layer 3 of the display substrate 1 of the present embodiment has a non-removable layer 32 and a removable layer 31 and can be removed together with on-demand ink when the Service-to-Self wipes the on-demand pattern with an organic solvent. Layer 31 is removed. Even if the removable layer 31 is removed, the non-removable layer 32 remains. Therefore, even if a Service-to-Self prints an on-demand pattern thereafter, the non-removable layer 32 exists and the removable layer 31 does not exist. From the outside, it can be easily detected that it has been tampered with.

[Third Embodiment]
Moreover, in the said 1st and 2nd embodiment, although the back surface printing layer 4 provided in the back surface side of the base base material 2 has the pattern printing part 41 and the background printing part 42, the back surface printing layer 4 is a pattern. It may consist of only the printing unit 41 or only the background printing unit 42 (not shown).
Furthermore, in the said 1st and 2nd embodiment, although the back surface printed layer 4 is provided in the back surface side of the base base material 2, this back surface printed layer 4 does not need to be provided (not shown). .

Further, another layer capable of transmitting visible light may be provided between the base substrate 2 and the back surface printed layer 4. Even in such a case, the pattern printing unit 41 can be visually recognized from the surface side of the base substrate 2 in a state where the removable layer 31 is removed.
Furthermore, in the back surface printing layer 4 having the pattern printing part 41 and the background printing part 42, the background printing part 42 may be colorless and transparent. Even if the background printing unit 42 is colorless and transparent, when the container on which the display substrate 1 is mounted is opaque and has a color different from the color of the pattern printing unit 42, the color of the container and the color of the pattern printing unit 41 Thus, the pattern printing unit 41 can be easily visually recognized. In particular, it is preferable to mount the display substrate 1 on a container having a color with a large contrast to the pattern printing unit 41.

[Fourth Embodiment]
In the said 1st and 2nd embodiment, although the display base material 1 was processed into the heat contraction regular cylinder label, the display base material 1 of this invention is not restricted to the case where it forms in a heat contraction regular cylinder label. For example, you may process into packaging accessories, such as a stretch cylindrical label, a winding label, and an adhesive label, packaging materials, such as a pouch bag and a pillow packaging bag.
The stretch cylindrical label is obtained by forming a display substrate 1 using a base substrate 2 having self-stretchability into a cylindrical shape. Stretch cylindrical label expands to expand its diameter when a force is applied in the radially outward direction, and after being externally fitted to the container in its expanded state, it is restored to its original diameter by releasing the force. It is a label that adheres closely to the container. The winding label is a label that is wound around the container in the circumferential direction and attached to the container. The pressure-sensitive adhesive label is a label in which a pressure-sensitive adhesive is provided on the back side of the display substrate 1 and is attached to the container via the pressure-sensitive adhesive.
The pouch bag is a bag-like container formed by using at least one display substrate 1 and heat-sealing the peripheral edge of the display substrate 1. The pillow packaging bag forms a cylindrical body by sealing both side ends while forming the long strip-shaped display base material 1 into a cylindrical shape, and sealing the front and back while filling the cylindrical body with stored items. It is a packaging bag to be formed.

DESCRIPTION OF SYMBOLS 1 Display base material 2 Base base material 3 Ink receiving layer 31 Removable layer 32 Non-removable layer 4 Back surface printing layer 41 Pattern printing part 42 Background printing part 5 Label 6 Container 7 Labeled container

Claims (9)

A base substrate, and an ink receiving layer that is provided on the surface of the base substrate and fixes an ink containing a colorant,
A display substrate, wherein a part or all of the ink receiving layer is composed of a removable layer removable by an organic solvent.   The display substrate according to claim 1, wherein a back printed layer is provided on a back surface of the base substrate corresponding to the removable layer.   The display base material according to claim 2, wherein the back surface printed layer has a pattern printing portion representing a pattern.   The display base material according to claim 1, wherein the removable layer is opaque. The back surface printing layer has a pattern printing portion representing a pattern, and a non-patterned background printing portion provided on the back surface of the pattern printing portion,
The removable layer is colored and transparent;
The display base material according to claim 2, wherein one of the pattern printing unit and the background printing unit is white and the other is the same color as the removable layer.   The display substrate according to claim 3 or 5, wherein a pattern of the pattern printing portion is concealed by the removable layer when viewed from the surface side.   The display substrate according to claim 1, wherein the removable layer has a printing plate shape portion.   The display substrate according to any one of claims 1 to 7, wherein a pattern is printed on at least the removable layer of the ink receiving layer using an ink containing a colorant.   It has a label formed from the display substrate according to any one of claims 1 to 8 and a container, and the label is in a state where the back side corresponding to the removable layer is in close contact with the container. A labeled container attached to the container.

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