JP4717420B2 - Heat-shrinkable cylindrical label - Google Patents

Description

  The present invention relates to a heat-shrinkable cylindrical label in which a strip label is attached to the inner surface of a cylindrical label main body so that a predetermined display can be visually recognized from a window portion formed on the cylindrical label.

2. Description of the Related Art Conventionally, heat-shrinkable cylindrical labels that are fitted into various containers such as beverage containers, food containers, and chemical containers and can be mounted by heat shrink are well known.
Such a heat-shrinkable cylindrical label is generally formed of a heat-shrinkable synthetic resin film as a base film, and a predetermined display such as a trade name or advertisement is gravure-printed on the film, and then formed into a cylindrical shape. Yes.
However, for example, when a special ink such as a temperature indicating ink capable of displaying a change in temperature is used, it is difficult to perform gravure printing.

Therefore, it is also conceivable to apply special printing to the adhesive label and attach it to the cylindrical label. However, after the cylindrical label is mounted on a container or the like, the adhesive label must be attached to a predetermined position with high accuracy, and the attached adhesive label may be inadvertently peeled off during distribution.
In this respect, JP 2002-87438 A discloses a cylindrical shape in which a window portion is formed in a cylindrical label body, and an auxiliary label is attached to the inner surface of the cylindrical label so that the label can be seen through the window portion. A label is disclosed. According to such a cylindrical label, for example, a special printing indication can be given to the cylindrical label by giving a display difficult to gravure to the auxiliary label, and the auxiliary label is provided on the inner surface of the cylindrical label. Since it is affixed to, it is preferable without fear of peeling carelessly.

By the way, in order to manufacture the cylindrical label described in the above publication, before the center seal (cylindrical processing), the long film provided with the window is fed and the window is closed. An auxiliary label that is slightly larger than the window is attached to the inner surface of the film (see, for example, [0023] and FIG. 4).
However, since the long film at the time of forming the center seal is fed at a high speed, in order to attach the auxiliary label at a position covering the window portion of this film, an advanced label is used to adjust the application timing of the auxiliary label. It is necessary to use a facility, and the auxiliary label is usually made of a tack label, so that release paper is also required.

JP 2002-87438 A

The present invention, in order to determine the storage period or the like, window visible indicators displayed through, and to provide a heat-shrinkable cylindrical label that can be manufactured more simply.

In the means of the present invention , a window portion is formed in the heat-shrinkable cylindrical label body, and the inner surface of the tubular label body passes through the window portion and extends from the upper edge to the lower edge of the tubular label body. A strip-shaped label is stuck across, and on the outer surface of the strip-shaped label, a plurality of different indicator displays that can be visually recognized through the window portion are provided, and the plurality of different indicator displays are respectively displayed after a predetermined period of time. Each unit fades or develops or discolors at a different temperature, and a plurality of one unit consisting of a plurality of indicator displays are arranged in parallel at substantially equal intervals in the longitudinal direction of the belt-like label. Provided is a heat-shrinkable cylindrical label configured to be substantially the same length as or shorter than the vertically long window portion.

This heat-shrinkable cylindrical label has a plurality of indicators constituting one unit even when the sticking position is shifted due to the extension of the belt-like label original when the belt-like label original is attached to the label base material. The display can be stored inside the window.
Furthermore, since the said heat-shrinkable cylindrical label can visually recognize the several indicator display which comprises 1 unit through a window part, it can discriminate | determine an elapsed period for every some storage temperature, or a storage period is stepwise. Can be determined.
Furthermore, since the said heat-shrinkable cylindrical label has the strip | belt-shaped label stuck on the inner surface of a cylindrical label main body, there is no possibility that a strip | belt-shaped label may peel off carelessly at the time of distribution | circulation.
Further, since the strip-shaped label is stuck from the upper edge to the lower edge of the cylindrical label main body, when the cylindrical label is manufactured, the long label base material is fed together with the long label base material. By feeding the belt-shaped label original fabric, the belt-shaped label can be easily attached.

In a preferred embodiment of the present invention, the belt-like label is substantially non-heat-shrinkable at the heat-shrink temperature of the cylindrical label body . Heat-shrinkable cylindrical label of this, since the strip label is substantially non-thermal contraction, at the time of shrink fitted, index display is almost not distorted subjected to the band-shaped label.

The heat-shrinkable cylindrical label of the present invention can distinguish a temperature change or a storage period by visually recognizing an indicator display through a window portion.
Moreover, the strip | belt-shaped label in which the said index display was provided can be stuck to a cylindrical label main body by sending a elongate strip | belt-shaped label original fabric with a label base material original fabric. Therefore, the heat-shrinkable cylindrical label of the present invention can be easily manufactured.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
(First embodiment)
1 and 2, reference numeral 1 denotes a cylindrical label body 2 provided with a window 5, and a strip-shaped label 3 that is attached to the inner surface of the cylindrical label body 2 and has a predetermined display 7. And a heat-shrinkable cylindrical label.

The cylindrical label main body 2 is formed of a cylindrical body obtained by forming a heat-shrinkable label base material into a cylindrical shape, and a window portion 5 is formed at a predetermined position.
The label substrate is made of a colorless transparent or colored transparent heat-shrinkable film through which the design display 4 can be seen, and the material thereof is not particularly limited. For example, a polyester-based material such as polyethylene terephthalate, an olefin-based resin such as polypropylene, A heat-shrinkable resin film comprising one or a mixture of two or more selected from thermoplastic resins such as polystyrene, styrene-butadiene copolymers, styrene resins, cyclic olefin resins, and vinyl chloride resins; and These laminated films are exemplified. Moreover, the label base material can also use a heat-shrinkable sheet made of a laminated film of a heat-shrinkable resin film and a non-heat-shrinkable sheet such as a nonwoven fabric and / or a foamed resin sheet. For example, when a heat-shrinkable resin film is used as the label base material, it can be obtained by forming a film by a known production method such as a T-die method or an inflation method and stretching the film. The stretching treatment is usually at a temperature of about 70 to 110 ° C., and is 2.0 to 8.0 times, preferably 3.0 in the circumferential direction (which is the direction that becomes the circumferential direction when formed on the cylindrical label 1). It is performed by stretching about 7.0 times. Furthermore, you may perform a extending | stretching process by the low magnification of 1.5 times or less also in the vertical direction (direction orthogonal to the circumferential direction), for example. The obtained film becomes a uniaxially stretched film or a biaxially stretched film slightly stretched in a direction orthogonal to the main stretch direction.
As for the thickness of a label base material, a thing about 20-80 micrometers is used normally.
For example, when the thermal contraction rate is immersed in warm water at 90 ° C. for 10 seconds, the thermal shrinkage rate is about 20 to 80% in the circumferential direction and about 0 to 15% in the longitudinal direction.
However, heat shrinkage rate (%) = [{(original length in circumferential direction (or longitudinal direction)) − (length after immersion in circumferential direction (or longitudinal direction))} / (circumferential direction (or longitudinal direction) ) Original length)] × 100.

On the inner surface of the label substrate, a design display 4 such as a trade name / advertisement is printed by gravure printing or the like, except for a part. In addition, the design display 4 can also be printed on the outer surface of a label base material.
A portion where the design display 4 is not printed is a window portion 5 through which the inside can be seen through the label base material. That is, the window part 5 is formed by providing a non-printing area | region in a part of label base material. The shape of the window portion 5 is not particularly limited, and can be variously formed such as a circular shape or a substantially triangular shape in addition to a substantially rectangular shape as shown in FIG. Further, the size (area) of the window portion 5 is not particularly limited, and can be appropriately designed according to display contents to be expressed.
In addition, as a label base material, for example, when using a laminated sheet laminated with a non-transparent sheet such as a nonwoven fabric, by providing a non-laminated part by cutting off the part of the non-transparent sheet corresponding to the non-printing area, The window part 5 can be formed in the cylindrical label main body 2.
And the cylindrical label main body 2 is comprised by making the inner surface of the said label base material into an inner side, making it a cylinder shape, and bonding the overlapping both ends.

A flat tape-like strip-like label 3 extending in the vertical direction (a direction perpendicular to the circumferential direction of the cylindrical label 1) is attached to the inner surface of the cylindrical label body 2 with an adhesive or an adhesive (not shown). ing.
The strip-shaped label 3 is attached to the inner surface of the cylindrical label main body 2 so as to cover the window portion 5 and extend from the upper edge 2a to the lower edge 2b of the cylindrical label main body 2.
The material of the strip | belt-shaped label 3 is not specifically limited, The various heat-shrinkable sheet which was illustrated with the label base material, a non-heat-shrinkable sheet, etc. can be used. However, it is preferable to use a heat-shrinkable sheet as the strip label 3 because the strip label 3 can be contracted following the thermal contraction of the cylindrical label body 2. Such a sheet is the same or the same type as the label base material, or is different in material from the label base material, but is heated at substantially the same heat shrinkage rate in substantially the same direction at the heat shrink temperature (usually 80 to 100 ° C.) of the label base material. A shrinkable sheet is preferably exemplified.
When the predetermined display 7 provided on the belt-like label 3 is made of ink that is easily whitened (finely cracked) by shrinkage, a substantially non-heat-shrinkable sheet is preferably used.
In addition, when light shielding properties are required depending on the use of the container to which the cylindrical label 1 is attached, the belt-like label 3 is a white printed sheet or the like in order to maintain the light shielding properties in the window portion 5. It is preferable to use a light-shielding sheet such as a colored sheet. Moreover, in the case where a heat insulating sheet such as a nonwoven fabric or a foamed resin sheet is used for the cylindrical label body 2, the belt-like label 3 has heat insulating properties in order to maintain heat insulating properties in the window portion 5. It is preferable to use a sheet.

A predetermined display 7 is shown on the outer surface of the belt-like label 3 (the surface attached to the cylindrical label main body 2), and the predetermined display 7 is visible from the outside of the cylindrical label main body 2 through the window portion 5. it can.
The predetermined display 7 is not particularly limited, and various displays can be selected according to the purpose. The belt-like label 3 in the present embodiment is provided with an indicator display 7 that can determine the storage period as the predetermined display 7. The index display 7 is colored in a predetermined color, and the color is faded over time, and the storage period can be determined by visually confirming the degree of color fading.

Specifically, as shown in FIG. 3, on the outer surface of the strip-shaped label 3, a contrast portion 72 printed with printing ink that exhibits substantially the same color as that of the color changing portion 71 described later at the time of complete color development, and this contrast An indicator display 7 including a large-area color changing portion 71 covering the portion 72 is provided. The indicator display 7 is provided in the longitudinal direction of the strip label 3 with a predetermined interval. Further, a surface protective layer (not shown) such as UV varnish or UV ink may be provided on the color changing portion 71.
Further, a plurality of indicator displays 7 are provided for determining a plurality of temperature changes or a plurality of storage periods.
Before describing the configuration in detail, the configuration of the color changing unit 71 and the principle by which the color changing unit 71 can determine the storage period will be described first.

The color changing portion 71 is a layer made of an ink containing a color former, a developer, and a binder that binds them, and may further contain a sensitizer. The discoloration part 71 disperses these agents in a binder, and is applied to the outer surface side of the belt-like label 3 to provide an uncolored layer. By heating to about ˜150 ° C., both are brought into contact and reacted to develop a predetermined dark color (for example, dark blue).
When the discoloration portion 71 is applied to the strip-shaped label 3, it can be performed by gravure printing. However, when gravure printing is difficult, such as ink containing a microcapsule containing a color former or a developer, preferably a screen. It is preferable to carry out printing methods other than gravure printing, such as printing, offset printing, and letterpress rotary printing.

  As the color former, an irreversible color former that does not return to its original color even when exposed to a high temperature after complete color development is preferable. Among them, a leuco dye is preferably used because of a large color change. Examples of the leuco dye include 1,3-dimethyl-6-diethylaminofluorane, 2-bromo-3-methyl-6-dibutylaminofluorane, 6-diethylaminobenzo [a] -fluorane, 3,7-bis ( Dimethylamino) -10-benzoylphenothiazine, 3,3-bis (P-dimethylaminophenyl) -6-dimethylaminophthalide, 2-N, N-dibenzoylamino-6-diethylaminofluorane, 2- (2- Chloroanilino) -6-diethylaminofluorane, 2- (2-chloroanilino) -6-dibutylaminofluorane, 4-anilino-3-methyl-6-dibutylaminofluorane, 2-anilino-3-methyl-6-diethylamino Fluoran etc. can be used and these may use 2 or more types together.

Further, the developer is not particularly limited as long as it reacts with the color former. For example, when a leuco dye is used as the color developer, t-butylphenol, bisphenol A, phenols such as phenol resin, etc. Inorganic acidic substances such as organic acidic substances, activated clay, bentonite and clay can be used.
As sensitizers, in the case of leuco dyes, waxes such as N-hydroxymethyl stearamide, stearamide, and palmitic acid amide, naphthol derivatives such as 2-benzyloxynaphthalene, p-benzylbiphenyl, 4-allyloxy Biphenyl derivatives such as biphenyl, carbonic acid or oxalic acid diester derivatives such as diphenyl carbonate and dibenzyl oxalate can be used.
As the binder, for example, polyvinyl alcohol, cellulose ester resin, acrylic resin, starch, casein, urethane resin, SBR resin, polyolefin and the like can be used.
The amount of the developer can be appropriately set according to the desired color change amount, but is generally in the range of 0.01 to 100 times, preferably 0.1 to 10 times by weight with respect to the color former. Degree.

When the colored portion 71 that has been colored is stored under a temperature selected from about 55 to 65 ° C., for example, the color changes and the color changes every day. The discolored portion 71 in the colored state does not fade at room temperature unless it has passed for a very long period of time. However, for example, when it is heated and stored at about 55 to 65 ° C., it will fade in about 10 to 50 days. Although this principle is not clear, it is considered that the amount of heat during warm storage deteriorates the color former or / and the developer and promotes fading. Using this degree of fading as an index, the storage period can be determined visually or by optical devices.
For example, FIG. 4 shows that three samples of the same discolored portion 71 colored at a coloring temperature of 120 ° C. are prepared and stored at temperatures of 55 ° C., 60 ° C., and 65 ° C., respectively, and the degree of fading of the discolored portion with respect to the elapsed days is tested. It is a photograph figure which shows the result. In this test example, when stored at 55 ° C., the discolored portion did not fade even after 28 days, and the color at the time of color development (for example, dark blue) remained almost unchanged, but clearly after about 21 days when stored at 60 ° C. The color faded and the dark blue color disappeared, and the color faded after about 14 days under storage at 65 ° C. The discoloration portion 71 according to this test example can clearly distinguish the color difference visually and is suitable for discriminating the passage of about 3 weeks under storage at 60 ° C., and for discriminating the passage of about 2 weeks at 65 ° C. It can be used suitably.
In addition, since the contrast part 72 does not fade, it can be used as a reference for determining the degree of fading of the color changing part 71. However, the control part 72 is not necessarily provided.

  The relationship between the storage temperature and the degree of fading (fading speed) with respect to the number of days elapsed can be appropriately adjusted by selecting the type of color former and developer in the color changing portion 71 or changing the blending ratio of both agents. Further, even for the color changing portion 71 having the same composition, the color fading speed can be varied by changing the color development temperature when the color changing portion 71 is colored. For example, in the discolored portion 71 having the same composition, the color developed at 120 ° C. and the color developed at 130 ° C. may have a faster fading speed even when stored at the same temperature. It has been confirmed. Of course, if the composition of the color changing portion 71 is changed, the color development temperature may be 130 ° C. faster.

  Therefore, for example, by preparing a plurality of color changing portions 71 having different compositions and providing the strip-shaped label 3, the elapsed period can be determined for each of a plurality of storage temperatures, or the storage period can be determined stepwise. Specifically, for example, by providing the belt-like label 3 with three kinds of discoloration portions 71 that can fade after two weeks under storage at 55 ° C., 60 ° C., and 65 ° C., the temperature ranges from 55 ° C. to 65 ° C. It is possible to determine the storage period of 2 weeks. Further, for example, by providing the strip-shaped label 3 with three kinds of discoloration portions 71 that can fade after 2 weeks, 3 weeks, and 4 weeks under storage at 60 ° C., a plurality of storage periods are determined under storage at 60 ° C. be able to.

  In the present embodiment, as shown in FIG. 5, for example, a set of a plurality of color changing portions 71 (index display 7) that fade after a predetermined period of time at different temperatures, or different storage at a predetermined temperature. A set of a plurality of color changing portions 71 that fade after a period of time is defined as one unit Y. The one unit Y is provided in the same order in the longitudinal direction of the strip label 3 in the same order. The longitudinal length L is configured to be substantially the same as or shorter than the longitudinal length of the window portion 5.

For example, three types of color changing portions 71 (hereinafter referred to as the first to third color changing portions 71a, 71b, 71c in order) that can fade after two weeks under storage at 55 ° C., 60 ° C., and 65 ° C. are defined as 1 unit Y. In this case, the first color changing portion 71a, the second color changing portion 71b, and the third color changing portion 71c are sequentially repeated from above and are provided at substantially equal intervals. Therefore, in this example, 1 unit Y composed of three types (plurality) of discolored portions 71 is arranged on the inner surface of the strip-shaped label 3 at substantially equal intervals and in the same order.
And since the longitudinal length L of 1 unit Y is provided so as to be substantially the same length or shorter than the longitudinal length of the window portion 5, even if the belt-like label 3 is displaced in the longitudinal direction at the time of manufacture, it constitutes 1 unit. All of the first to third color changing portions 71 a, 71 b, 71 c to be surely fit inside the window portion 5. That is, as will be described later, when the cylindrical label 1 is manufactured, the strip-shaped label original is pasted on the long-sized label base material. There is a risk of extending in the longitudinal direction. The band-shaped label 3 in the present invention can be provided with the indicator display 7 in a point according to the interval between the window portions 5. The indicator display 7 is gradually displaced from the window 5. In this respect, a plurality of indicator displays 7 having a predetermined function as described above are set as one unit, and are arranged at substantially equal intervals and in the same order, and are substantially the same length or shorter than the vertical length of the window portion 5. Even if the original strip is slightly stretched at the time of pasting the belt-like label web and the pasting position is displaced, all of the plurality of indicator displays 7 constituting one unit are accommodated inside the window portion 5. (FIGS. 6A and 6B show the positional relationship between 1 unit Y of the index display 7 and the window portion 5 (represented by a two-dot chain line) when the strip-shaped label original is stretched. ).
Therefore, it is not necessary to adjust the position even if the strip-shaped label original is stretched.

Next, the manufacturing method of the said heat-shrinkable cylindrical label 1 is demonstrated.
As shown in FIG. 7, the label base material 11 is sent out from the label base material roll 10 on which the design display is printed in a continuous pattern in the longitudinal direction except for a part (window portion). Next, the strip-shaped label roll 14 is drawn from the strip-shaped label roll 12 on which the index display 7 of 1 unit Y is printed in a continuous pattern, and an adhesive (or adhesive) is applied to the outer surface thereof, and this is applied to the label base. It is attached on the inner surface of the raw material 11 and on the window forming portion.
In addition, it may replace with the method of apply | coating an adhesive agent to the strip | belt-shaped label original fabric 14 at the time of sticking, and you may use the strip | belt-shaped label original fabric 14 which apply | coated the adhesive beforehand.
And the strip | belt-shaped label original fabric 14 is sent out according to delivery of the label base material original fabric 11, and the strip | belt-shaped label original fabric 14 which passes each window part 5 by pressing the strip | belt-shaped label original fabric 14 with a roller (not shown). 14 can be attached easily. At this time, the strip-shaped label original fabric 14 is also fed by being pulled by the delivery of the label base material 11, so that the strip-shaped label original fabric 14 can be stably adhered at a high speed.
After the fact, in the same manner as in the conventional manufacturing method, a solvent (or adhesive) is applied to one side edge of the label base material 11 while forming the label base material 11 in a cylindrical shape by a former (not shown). The cylindrical label continuous body 15 in which the cylindrical labels 1 are continuously connected can be obtained by performing center sealing by overlapping both end portions. Then, the continuous body 15 is flattened and wound into a roll to obtain a continuous roll 16, which is loaded into a label mounting apparatus, and the continuous body is pulled out and cut into a predetermined length. The heat-shrinkable cylindrical label 1 can be obtained.
Thus, the heat-shrinkable cylindrical label 1 according to the present invention can be easily manufactured.

The cylindrical label 1 is inserted into a body portion of a container and heated to a heat shrinkage temperature, whereby a package with a label in which the indicator display 7 can be visually recognized from the window portion 5 can be obtained.
Since the strip-shaped label 3 is stuck to the inner surface of the cylindrical label main body 2 in such a package, there is no possibility that the strip-shaped label 3 will be damaged or inadvertently peeled off during distribution. Moreover, since the separate strip | belt-shaped label 3 is stuck, the display difficult to represent on the cylindrical label main body 2 can also be added to the cylindrical label 1 via the strip | belt-shaped label 3. FIG.
And since the index display 7 can be visually recognized from the window part 5 of the cylindrical label 1, if the said package is put into warmers, such as a hot warmer, the index display 7 will fade over time. By determining the degree of fading visually or by optical devices, it is possible to determine how long it has been heated. Therefore, it can be suitably used as a product management label.

In addition, since the cylindrical label 1 is formed by sticking a separate strip-shaped label 3 to the cylindrical label main body 2, the same decorativeness as that of the conventional cylindrical label is ensured, and a display for decorative purposes (design display) Functional displays other than 4) can be added.
Specifically, the design display of the cylindrical label has been conventionally performed by gravure printing, but generally, the number of colors that can be used for gravure printing is determined (approximately 6 to 10 colors). Then, the display for the purpose of decoration and the functional display (for example, the index display for determining the storage period or the index display for determining the following temperature) are printed on the cylindrical label body 2 by gravure printing. In this case, color ink for display for decoration purposes and special ink for functional display must be used in combination, and the color ink for decoration purposes must be reduced due to the limitation of the number of colors in gravure printing. However, since the cylindrical label 1 of the present invention is formed by sticking a separate strip-shaped label 3 to the cylindrical label main body 2, the cylindrical label main body 2 can be obtained by providing an indicator 7 on the strip-shaped label 3. Can be printed with a color ink of the upper limit of the number of colors for gravure printing as in the prior art.

The index display 7 determines the storage period based on the degree of fading of the color changing portion 71 that has already developed color. However, the indicator display 7 for determining the storage period is not limited to the above-described configuration.
As a modification of the index display 7, it is also possible to use a display that develops or changes color when exposed to a predetermined temperature. This index display 7 functions as a simple temperature sensor for discriminating the temperature, and can be constituted by various temperature indicating inks. The index display 7 can be configured by applying temperature indicating ink including microcapsules containing a color former, a developer, etc. to the strip label 3 and leaving it in an uncolored state. The temperature indicating ink may be reversible or irreversible. Also for the indicator display 7 for discriminating the temperature, following the example described in detail above, using temperature indicating ink that can develop color by breaking the microcapsules at different temperatures, the plurality of indicator displays 7 are set as one unit, and this is indicated by a belt-like shape. It is preferable to repeatedly provide the label 3 at substantially equal intervals.

(Second Embodiment)
The second embodiment relates to a heat-shrinkable cylindrical label in which a mechanical reading symbol 7 is provided on the belt-like label 3 as a predetermined display 7. Hereinafter, configurations that are mainly different from those of the first embodiment will be described, and the same configurations may be referred to using terms and drawing numbers, and description thereof may be omitted.

8 and 9, a mechanical reading symbol 7 is represented as a predetermined display 7 on the outer surface of the strip label 3. The mechanical reading symbol 7 is visible from the outside of the cylindrical label body 2 through the window portion 5.
The type of the mechanical reading symbol 7 is not particularly limited, and examples thereof include a two-dimensional code as illustrated in addition to a barcode. Here, the two-dimensional code refers to a symbol in which information is recorded in the horizontal direction and the vertical direction, that is, in a two-dimensional direction. Currently, a stack type code and a matrix type code are mainly used in Japan. Specifically, a QR code (JIS X 0510), PDF417 (ISO15438), DataMatrix (ISO16022), MaxiCode (ISO16023), QRCode (ISO18004) and the like are exemplified.

Since a large amount of information can be recorded in the two-dimensional code, for example, campaign application information can be recorded in the two-dimensional code. Specifically, for example, at least information on the URL of the campaign provider's homepage (campaign site) and the campaign application ID number is recorded in the two-dimensional code. The application ID number may be recorded in the two-dimensional code, and the number display may be written together.
Such campaign application ID numbers are unique information that changes individually. Since a two-dimensional code including such unique information cannot be printed uniformly on a plate, it can be printed using a printing method that can be printed on demand, for example, a laser printer, an inkjet printer, a thermal transfer ink ribbon printer, or the like. It is preferable to do. In addition, when printing the mechanical reading symbol 7 that does not include individual information such as an ID number (no data change), gravure printing, flexographic printing, letterpress printing, offset printing, etc. are used. Among them, it is preferable to use letterpress printing or offset printing because the finish is good.
According to the present invention, the mechanical reading symbol 7 including the specific information can be easily given to the cylindrical label 1 because the mechanical reading symbol 7 is applied to the strip-shaped label 3 that is independent from the cylindrical label body 2. it can.

Next, the belt-like label 3 is formed of a non-heat-shrinkable sheet that does not substantially heat shrink at the heat shrink temperature of the cylindrical label body 2. However, even if it is a non-heat-shrinkable sheet, for example, when a thermoplastic resin film or the like is used, it does not shrink at all. Therefore, the non-heat-shrinkable sheet that does not substantially heat shrink here refers to a sheet that hardly heat shrinks at the heat shrinking temperature of the cylindrical label body 2, and heat shrinkage is observed, but the heat shrinkage rate is mechanical. Sheets in a range where the reading symbol 7 can be read by the reading device are included. Examples of such a sheet include a biaxially stretched polyethylene terephthalate film, a biaxially stretched polypropylene film, a polyester synthetic paper, and a polyolefin synthetic paper.
It is preferable to use a sheet having a thickness of about 10 to 80 μm and a thermal shrinkage of about 0 to 3% (soaked in warm water at 100 ° C. for 10 seconds).

The heat-shrinkable cylindrical label 1 according to the present embodiment is shrink-mounted on a container or the like and supplied to a consumer as a package with a label. Since the belt-like label 3 provided on the cylindrical label 1 is not substantially thermally contracted, there is no possibility that the mechanical reading symbol 7 is distorted by the shrink attachment, and this can be visually recognized through the window portion 5.
The mechanical reading symbol 7 can be accurately read by a reading device such as a camera-equipped mobile phone or a scanner connected to a personal computer. The information recorded in the symbol 7 is processed, for example, according to a prize application system (software) provided in a camera-equipped mobile phone or the like. You can apply for lotteries, prizes, etc.
Thus, since the cylindrical label 1 of this invention has the cylindrical label main body 2 and the strip | belt-shaped label 3, the non-heat-shrinkable sheet | seat which does not heat-shrink substantially can be used as the cylindrical label 3, for example, An inconvenient display can be accurately represented when contracted and deformed like a two-dimensional code.

(Other embodiments)
In each said embodiment, when sticking the strip | belt-shaped label 3 to the cylindrical label main body 2, the strip | belt-shaped label 3 can be peeled by using the peelable adhesive. Accordingly, by providing a bonus label such as a lottery or a prize to be applied using a postcard or the like on the strip label 3, the strip label 3 can also be used as a campaign label.
And a consumer can remove the cylindrical label 1 from the package with a label, peel off the strip | belt-shaped label 3, and can apply.

  Moreover, as shown in FIG. 10, you may stick the tack label 9 to the inner surface of the strip | belt-shaped label 3 through releasing agents, such as silicone type resin. Special benefits such as lotteries can be displayed on the inner surface of the tack label 9 and used as a campaign label.

Furthermore, in each said embodiment, although the window part 5 is provided in the approximate center part of the cylindrical label main body 2, the formation position of the window part 5 is not restricted to this, For example, the upper side or the lower side, 11 (a), a position including the upper edge 2a or a position including the lower edge 2b (not shown), as shown in FIG. 11 (b), even if it is provided from the upper edge 2a to the lower edge 2b. Good.
Moreover, the formation method of the window part 5 can also cut out a part of label base material and form the window part 5 other than forming a non-printing part in a label base material.
Furthermore, the strip | belt-shaped label 3 is not restricted to the aspect stuck so that the window part 5 whole may be covered, For example, as shown in FIG.11 (b), the strip | belt-shaped label 3 may be stuck inside the window part 5. FIG. Is possible.

  Moreover, the predetermined display 7 given to the strip | belt-shaped label 3 is not restricted to the indicator display which can discriminate | determine temperature or a storage period, or a mechanical reading symbol, It replaces with this or uses together, Various displays are shown on the strip | belt-shaped label 3. Can be applied. For example, in addition to a display that has undergone special processing such as a hologram display in which a hologram image appears, a three-dimensional display that looks three-dimensional, and the design display 4 provided on the cylindrical label body 2, advertisements, product names, etc. A design indication may be given to the strip label 3.

(A) is a front perspective view which shows the heat-shrinkable cylindrical label which concerns on 1st Embodiment, (b) is a partially-omission rear view which looked at the label from the inner surface side. The AA line expanded sectional view of FIG. (A) is the front view which looked at the strip | belt-shaped label from the outer surface side, (b) is the BB line expanded sectional view. The reference photograph figure which shows the color fading degree of the discoloration part with preservation temperature and elapsed days. The front view which shows the arrangement | sequence state of the indicator display provided in the strip | belt-shaped label. The reference front view which shows the fitting condition of the window part of a parameter | index display. The partial omission reference perspective view which shows the manufacturing process of a heat-shrinkable cylindrical label. The front perspective view which shows the heat-shrinkable cylindrical label which concerns on 2nd Embodiment. The front view which looked at the strip | belt-shaped label which concerns on 2nd Embodiment from the outer surface side. The partially abbreviate | omitted sectional drawing which shows the heat-shrinkable cylindrical label which concerns on other embodiment. (A), (b) is a front perspective view which shows the heat-shrinkable cylindrical label which concerns on other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Heat-shrinkable cylindrical label, 2 ... Cylindrical label main body, 2a ... Upper edge of cylindrical label main body, 2b ... Lower edge of cylindrical label main body, 3 ... Band-shaped label, 5 ... Window part, 7 ... Predetermined display (Indicator display, mechanical reading symbol), 71 ... color changing section, 72 ... control section, 71a ... first color changing section, 71b ... second color changing section, 71c ... third color changing section, 9 ... tack label, 10 ... label group Raw material roll, 11 ... Label base material roll, 12 ... Strip label roll, 14 ... Strip label roll, 15 ... Continuous cylindrical label, 16 ... Continuous roll

Claims (2)

A window part is formed in the heat-shrinkable cylindrical label body,
On the inner surface of the cylindrical label main body, a belt-like label is pasted from the upper edge to the lower edge of the cylindrical label main body through the window portion,
On the outer surface of the strip-shaped label, a plurality of different indicator displays that can be visually recognized through the window portion are provided,
The plurality of different indicator displays are each faded after a predetermined period of time or colored or discolored at different temperatures, respectively.
One unit consisting of the plurality of indicator displays is arranged in parallel in the same order at substantially equal intervals in the longitudinal direction of the strip-shaped label,
The heat-shrinkable cylindrical label characterized in that the vertical length of one unit is substantially the same as or shorter than the vertical length of the window portion. The heat-shrinkable cylindrical label according to claim 1, wherein the belt-like label is substantially non-heat-shrinkable at the heat-shrink temperature of the cylindrical label body.