WO2013100141A1 - Etiquette étirée cylindrique et récipient avec étiquette - Google Patents

Etiquette étirée cylindrique et récipient avec étiquette Download PDF

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Publication number
WO2013100141A1
WO2013100141A1 PCT/JP2012/084140 JP2012084140W WO2013100141A1 WO 2013100141 A1 WO2013100141 A1 WO 2013100141A1 JP 2012084140 W JP2012084140 W JP 2012084140W WO 2013100141 A1 WO2013100141 A1 WO 2013100141A1
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WO
WIPO (PCT)
Prior art keywords
cylindrical
stretch label
label
cylindrical stretch
container
Prior art date
Application number
PCT/JP2012/084140
Other languages
English (en)
Japanese (ja)
Inventor
崇宏 亀尾
英明 梅田
英司 疋田
崇平 永島
Original Assignee
株式会社フジシールインターナショナル
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社フジシールインターナショナル filed Critical 株式会社フジシールインターナショナル
Priority to JP2013551862A priority Critical patent/JP6193763B2/ja
Publication of WO2013100141A1 publication Critical patent/WO2013100141A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/08—Coverings or external coatings
    • B65D23/0842—Sheets or tubes applied around the bottle with or without subsequent folding operations
    • B65D23/0871—Stretched over the bottle
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/04—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps to be fastened or secured by the material of the label itself, e.g. by thermo-adhesion
    • G09F3/06—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps to be fastened or secured by the material of the label itself, e.g. by thermo-adhesion by clamping action
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0272—Labels for containers
    • G09F2003/0273—Labels for bottles, flasks

Definitions

  • the present invention relates to a cylindrical stretch label and a labeled container.
  • the stretch label is attached to the container in the form of a cylindrical body, like the shrink label.
  • the cylindrical stretch label is fitted in the container in a state of being stretched by being pulled in the circumferential direction, and then contracts and follows the container when the pulling force is removed. For this reason, the cylindrical stretch label is required to be excellent in stretchability and restoration property (also referred to as stretchability).
  • Patent Document 1 discloses a thickness of a linear low-density polyethylene polymerized using a single-site metallocene catalyst and having a density of 0.905 to 0.940 g / cm 3. It is a 30-150 ⁇ m film, deformed in the transverse direction at a speed of 300 mm / min, the stress 0 strain obtained by measuring a hysteresis curve of 25% or less does not exceed 7%, and the permanent strain is 1.5% Stretch label films formed from films that do not exceed.
  • Cited Document 1 a state in which the cylindrical stretch label is attached to the cylindrical body of the container is illustrated.
  • the conventional cylindrical stretch label can be attached only to a portion where there is no difference in diameter of the container.
  • a printing layer is formed on at least one surface of the elongated body in a state of the elongated body before being formed into a cylindrical shape.
  • the printing layer is continuously formed while conveying the long body in the longitudinal direction.
  • the long body greatly expands and contracts in the longitudinal direction during the conveyance process, it becomes difficult to form the printing layer at an appropriate position.
  • an object of the present invention is to provide a cylindrical stretch label having excellent stretchability and good design and manufacturability, and a labeled container equipped with the stretch label. More preferably, it is to provide a cylindrical stretch label that can be attached to a portion of a container having a diameter difference.
  • a cylindrical stretch label according to the present invention includes a film base material formed into a cylindrical shape and a printed layer formed on at least one surface of the film base material, and stretches at least 60% in the circumferential direction.
  • a cylindrical stretch label in which an instantaneous strain (50 mm / min) after stretching 60% in the circumferential direction is 13% or less, and the film substrate has a density of 0.880 to 0.930 g.
  • the main component is linear low density polyethylene of / cm 3 , and the refractive index in the height direction is larger than the refractive index in the thickness direction and is 1.507 to 1.528.
  • the refractive index in the circumferential direction of the film substrate is equal to or smaller than the refractive index in the height direction and is 1.500 to 1.528. It is preferable that According to the said structure, it becomes further easy to improve manufacturing aptitude, such as printing, maintaining the outstanding stretch property with respect to the circumferential direction of a label, for example, mounting compatibility with a container and manufacturing aptitude are made compatible more highly. be able to.
  • the cylindrical stretch label which concerns on this invention is suitable for the cylindrical stretch label which concerns on this invention to have the following stretch characteristics.
  • the tensile stress (F10 value) when stretched by 10% in the circumferential direction is 1 to 10 N / mm 2 .
  • the elongation (50 mm / min) in the height direction when the tensile stress is 4.3 N / mm 2 is 9% or less.
  • Instantaneous strain (6000 mm / min) after 60% expansion in the circumferential direction is 30% or less.
  • a labeled container includes the above-described cylindrical stretch label and a container, and the cylindrical stretch label is attached to the container in a state of being stretched in the circumferential direction.
  • the ratio of the maximum diameter portion to the minimum diameter portion of the portion where the cylindrical stretch label is attached is 1.05 to 1.75, and the cylindrical stretch label has the maximum diameter portion and the minimum diameter portion. It can be mounted following the part.
  • the cylindrical stretch label according to the present invention is excellent in stretchability and has good design and manufacturing suitability. Even if this cylindrical stretch label is a container with a large diameter difference, for example, it is possible to realize a good wearability following the shape and easily form a printed layer with no misalignment.
  • 1 and 2 include a film substrate 11 formed into a cylindrical shape and a printed layer 12 formed on at least one surface of the film substrate 11, and the film substrate 11 has a density of 0.880. It is composed mainly of linear low density polyethylene having a refractive index of ⁇ 0.930 g / cm 3 , and its refractive index in the height direction is larger than its refractive index in the thickness direction and is 1.507 to 1.528. It is a figure which shows the cylindrical stretch label.
  • the cylindrical stretch label 10 includes a film substrate 11 formed in a cylindrical shape and a printing layer 12. That is, the cylindrical stretch label 10 can be said to be a cylindrical body of the film substrate 11 on which the printing layer 12 is formed.
  • the printing layer 12 is formed on the surface of the film base 11 facing the inside of the cylindrical body.
  • the surface facing the inner side of the cylindrical body of the film substrate 11 is referred to as an “inner surface”
  • the surface facing the outer side of the cylindrical body is referred to as an “outer surface”.
  • the term which shows directions such as a "height direction”, a “circumferential direction”, and a “thickness direction”, is used.
  • “Height direction” means a direction (axial direction) connecting the one end side opening and the other end side opening of the cylindrical body.
  • the “circumferential direction” means a direction along the outer periphery (the same applies to the inner periphery) of the cylindrical body in a plane orthogonal to the height direction
  • the thickness direction means a direction orthogonal to the outer periphery and the inner periphery. means.
  • the cylindrical stretch label 10 is formed into a cylindrical body by overlapping and joining the edges of the film base material 11 to form a seal portion 13 (center seal portion).
  • the seal portion 13 has an inner surface of the film base 11 positioned outside the cylindrical body and a film base positioned inside the cylindrical body. It can be formed by heat sealing the outer surface of the material 11. Instead of heat sealing, laser sealing, ultrasonic sealing, adhesive sealing, and the like are also possible.
  • a non-joining portion extends from the seal portion 13 to the edge of the film substrate 11 located inside the cylindrical body.
  • Such an unbonded portion does not exist at the edge of the film base 11 located outside the cylindrical body, and the end portion is heat-sealed.
  • the non-joining portion may be provided only on the film base 11 side located on the outer side of the cylindrical body.
  • the form extended from both the inside and the outside, that is, the end of the overlapping film base 11 It is good also as a form which formed the seal part 13 in the center part of the width direction of edges.
  • the film substrate 11 is composed mainly of linear low density polyethylene (LLDPE).
  • the film base material 11 can also be made into a laminated structure using multiple types of linear low density polyethylene. Moreover, the single layer structure formed using a kind of linear low density polyethylene may be sufficient.
  • the thickness of the film substrate 11 is not particularly limited, but is preferably 10 to 100 ⁇ m, more preferably 15 to 80 ⁇ m, particularly preferably 20 to 60 ⁇ m, and most preferably 25 to 50 ⁇ m.
  • the linear low density polyethylene is preferably a copolymer of ethylene and ⁇ -olefin.
  • the ⁇ -olefin is preferably an ⁇ -olefin having 3 to 20 carbon atoms, and an ⁇ -olefin having 4 to 8 carbon atoms (for example, 1-butene, 1-pentene, 4-methyl-1-pentene, 1- Particularly preferred are hexene, 1-heptene, 1-octene and the like.
  • the content of the ⁇ -olefin component is preferably 1 to 20% by weight, more preferably 2 to 15% by weight, and particularly preferably 5 to 10% by weight, based on the total weight of the monomer component.
  • the linear low density polyethylene is particularly preferably polymerized using a metallocene catalyst. These linear low density polyethylene may be used independently and may use 2 or more types together.
  • the content of the linear low density polyethylene in the film substrate 11 is preferably 80% by weight or more, more preferably 90% by weight or more, and particularly preferably 95% by weight or more.
  • the density of the linear low density polyethylene is 0.880 to 0.930 g / cm 3 . If the density is within this range, good stretch properties can be obtained.
  • the density of the linear low density polyethylene more preferably 0.890 ⁇ 0.925g / cm 3, particularly preferably from 0.900 ⁇ 0.920g / cm 3, 0.905 ⁇ 0 Most preferred is 915 g / cm 3 .
  • the MFR (190 ° C., 2.16 kg) of the linear low density polyethylene is preferably 1 to 30 g / 10 minutes. If the MFR is within this range, the productivity will be good.
  • the MFR of the linear low density polyethylene is more preferably 1 to 20 g / 10 minutes, and particularly preferably 1 to 10 g / 10 minutes.
  • linear low density polyethylene Commercially available products can be used as the linear low density polyethylene.
  • “Umerit (registered trademark) 715FT, 1540F, 0540F” manufactured by Ube Maruzen Polyethylene Co., Ltd. can be exemplified.
  • Linear low density polyethylene is a monomer component other than ethylene and the above ⁇ -olefin, for example, vinyl carboxylate such as vinyl acetate (VA), unsaturated carboxylic acid such as acrylic acid (AA), methyl methacrylate (MMA), etc. (Meth) acrylic acid ester etc. may be contained.
  • the “main component” means that a resin other than the linear low-density polyethylene and additives (for example, a lubricant and an antistatic agent) may be included within a range not impairing the object of the present invention.
  • the linear low density polyethylene may be 70% by weight (70% by weight or more) with respect to the total weight of the resin constituting the film substrate 11. Particularly preferably, the linear low density polyethylene is contained in an amount of 90% by weight or more.
  • the film substrate 11 has a refractive index in the height direction larger than that in the thickness direction and is 1.507 to 1.528.
  • the refractive index in the height direction is preferably 1.510 to 1.525.
  • the refractive index in the circumferential direction of the film substrate 11 is preferably equal to or smaller than the refractive index in the height direction and 1.500 to 1.528. Preferably it is 1.503 to 1.520.
  • the refractive index of the circumferential direction of the film base material 11 is equivalent to the refractive index of the thickness direction, or larger than the refractive index of the thickness direction.
  • the refractive index in the thickness direction of the film substrate 11 is preferably 1.500 to 1.515, more preferably 1.500 to 1.510.
  • the refractive index in the circumferential direction of the film substrate 11 is the thickness of the film substrate 11 so as not to impair the stretchability (stretch characteristics) of the film substrate 11 and to prevent partial distortion of the film substrate 11 when stretched. It is preferable that the refractive index is larger than the refractive index in the direction and equal to or smaller than the refractive index in the height direction.
  • the ratio (Rh / Rt) of the refractive index (Rh) in the height direction to the refractive index (Rt) in the thickness direction of the film substrate 11 is preferably 1.001 to 1.030. 002 to 1.020 is more preferable, and 1.003 to 1.015 is particularly preferable.
  • the ratio (Rc / Rt) of the refractive index (Rc) in the circumferential direction to the refractive index (Rt) in the thickness direction of the film substrate 11 is preferably 1.000 to 1.030, preferably 1.001 to 1.020. Is more preferable, and 1.002 to 1.015 is particularly preferable.
  • the ratio (Rc / Rh) of the refractive index (Rc) in the circumferential direction to the refractive index (Rh) in the height direction of the film substrate 11 is preferably 0.980 to 1.005, and preferably 0.985 to 1.000. More preferred is 0.990 to 0.999.
  • the refractive index of the film substrate 11 can be realized by controlling the composition of the linear low density polyethylene which is the main component of the film substrate 11 and the stretching of the film substrate 11.
  • the difference in refractive index between the height direction, the circumferential direction, and the thickness direction can be realized by controlling the stretching direction and stretching ratio of the film substrate 11.
  • the thermal contraction rate of the film substrate 11 is preferably ⁇ 5% or more and less than 10% (minus signifies expansion) in the circumferential direction, from ⁇ 3% to 8% is more preferable, and -2% to 5% is particularly preferable. Further, it is preferably ⁇ 5% or more and less than 10% with respect to the height direction, more preferably ⁇ 1 to 8%, particularly preferably more than 0% and 6% or less.
  • the printing layer 12 is a layer for displaying, for example, product names, illustrations, usage precautions, and the like, and is formed on the inner surface of the film substrate 11 as described above.
  • the print layer 12 is provided on the entire inner surface excluding the seal portion 13 in consideration of the adhesiveness of the seal portion 13.
  • the thickness of the printing layer 12 is not particularly limited, but is preferably 0.1 to 10 ⁇ m.
  • the print layer 12 may be provided on the outer surface of the film base 11, and for example, in this case, the print layer 12 is provided over the entire region except the seal portion 13.
  • the printing layer 12 is provided in at least one of an inner surface or an outer surface, it may be provided not only in the whole area except the seal part 13, but partially. Further, the printing layer 12 may be provided on the entire inner surface or outer surface including the seal portion 13 as long as the adhesion of the seal portion 13 is not impaired.
  • the printing layer 12 may be provided on both the inner surface and the outer surface.
  • the printing layer 12 is formed by applying a printing ink on the inner surface of the cylindrical body and solidifying it by drying or UV irradiation before the film substrate 11 is formed into a cylindrical shape.
  • color materials such as desired pigments and dyes, binder resins such as acrylic resins and urethane resins, organic solvents, and various additives (for example, plasticizers, lubricants, waxes, antistatic agents) ), Or a desired colorant, a photopolymerizable resin such as an acrylic resin, a photopolymerization initiator, and an ultraviolet curable ink containing the above-described various additives.
  • the printing layer 12 can be formed by performing gravure printing, flexographic printing, letterpress printing, etc. using this printing ink.
  • the cylindrical stretch label 10 may be provided with a layer other than the printing layer 12 as long as it does not affect the stretchability and the like.
  • a protective layer may be provided on the inner surface side of the printing layer 12.
  • a protective layer for the printing layer 12 may be provided on the outer surface side.
  • a transparent overcoat layer may be provided on the outer surface of the film substrate 11 except for the seal portion 13 for the purpose of imparting slipperiness or preventing scratches.
  • the protective layer and the overcoat layer can be formed by printing using a well-known and commonly used ink. For example, the ink obtained by removing the coloring material from the constituent material of the printing layer 12 or the ink containing the coloring material that does not impair the transparency is used. Can be formed.
  • a series of manufacturing steps of the cylindrical stretch label 10 is a step of manufacturing a first elongated body which is a first manufacturing intermediate mainly composed of the linear low density polyethylene (hereinafter referred to as a step (a)).
  • step (c) a step of producing a third elongated body as a third production intermediate
  • the third elongated body is formed into a cylindrical shape and cut into individual label sizes.
  • a step of producing the cylindrical stretch label 10 hereinafter referred to as step (d)).
  • the second long body is a long body of the film base 11 before being formed into a cylindrical shape.
  • the first elongated body can be produced by a melt extrusion method.
  • a melt-extrusion method a casting drum in which the raw material mainly composed of the above-described linear low density polyethylene is put into an extruder and melted, the melted resin is supplied to a T die, and the thin melt resin is cooled from the die slit. It is extruded and cooled to solidify into a film.
  • the extrusion temperature is not particularly limited, but is preferably about 180 ° C to 240 ° C, and more preferably 200 ° C to 220 ° C. In this way, a 1st elongate body is produced.
  • a laminate type film substrate 11 can be produced by using a plurality of types of linear low density polyethylene as the raw material.
  • a lamination method for example, either a feed block method in which a feed block is installed immediately before a T die and each molten resin is supplied to the T die in a laminar flow state, or a multi manifold method using a multi-layer manifold is applied. Good.
  • step (b) the unstretched first elongated body produced in the step (a) is stretched.
  • a 1st elongate body is extended
  • the elongated body is also stretched in the width direction (hereinafter referred to as TD direction) orthogonal to the MD direction. That is, in the step (b), the first elongated body is uniaxially stretched at least in the MD direction, and preferably biaxially stretched in the MD direction and the TD direction.
  • the stretching method a roll method, a tenter method, or the like can be applied.
  • the MD direction corresponds to the height direction of the tubular stretch label 10
  • the TD direction corresponds to the circumferential direction of the tubular stretch label 10.
  • the first elongated body can be stretched in the MD direction and then in the TD direction.
  • a biaxially stretched second elongated body is produced by stretching the first elongated body in the MD direction and the TD direction while winding it with a winder installed downstream in the MD direction.
  • the stretching procedure is not particularly limited, and may be performed sequentially or simultaneously. Moreover, after extending
  • the draw ratio is 1.01 to 1.40 times in both the height direction (MD direction) and the circumferential direction (TD direction) of the cylindrical stretch label 10 from the viewpoint of achieving both stretch characteristics and production suitability, preferably 1.03 to 1.35 times, particularly preferably 1.05 to 1.30 times.
  • the cylindrical stretch label 10 may not be stretched in the circumferential direction, but is preferably stretched at a magnification equal to or less than that in the height direction. In particular, it is preferable that the film is stretched at the same magnification in the circumferential direction and the height direction in a range of 1.05 to 1.30.
  • the temperature at the time of stretching is less than the melting point of the resin composition constituting the first elongate body, preferably 45 ° C. or higher, particularly preferably 50 ° C. or higher.
  • the temperature may be set to the same level at the time of heat stretching in the MD direction and at the time of heat stretching in the TD direction, but when the stretching process is performed sequentially, the stretching temperature in the TD direction is set higher than the MD direction. It is preferable.
  • step (c) the second elongated body that has been heat-stretched is supplied to a printing machine or the like in the form of a roll, and the printing layer 12 is formed on one surface of the second elongated body while being continuously conveyed in the MD direction.
  • the printing layer 12 can be formed by a gravure printing method or the like.
  • step (c) the printing layer 12 can be stably formed without the third elongated body being greatly expanded during the transport process. That is, it is easy to form the printing layer 12 at an appropriate position.
  • This good printability is caused by adjusting the stretchability of the first long body by stretching the first long body in the MD direction.
  • the third elongated body on which the printing layer 12 is formed is formed into a cylindrical shape.
  • the cylindrical third elongated body is produced by forming the seal portion 13 by overlapping both ends in the TD direction so that the TD direction is the circumferential direction.
  • the seal part 13 can be formed by heat sealing, for example.
  • the seal portion 13 is formed so that the printed layer 12 faces the inside of the cylindrical body.
  • the cylindrical stretch label 10 is produced by cutting the third elongated body formed into a cylindrical shape into individual label sizes.
  • the cylindrical third elongated body is cut into individual label sizes while being continuously conveyed in the MD direction, but also exhibits good cut aptitude in the cutting process.
  • the stretch characteristics of the cylindrical stretch label 10 can be expressed by tensile stress and instantaneous strain in a tensile test.
  • the tensile stress is a force acting on the tensile tester when the evaluation sample is pulled and stretched at a predetermined speed. That is, the force resists stretching, and the smaller the tensile stress, the easier the label is stretched and the higher the stretchability.
  • the instantaneous strain (%) indicates the degree to which the evaluation sample is deformed without returning to the original length after the tensile test, and is measured immediately after the load is removed.
  • the speed at which the evaluation sample is pulled and stretched in the tensile test is “50 mm / min” or “6000 mm / min” (hereinafter, “50 mm / min” when the speed is not specified). It means that the smaller the instantaneous distortion, the higher the recoverability of the label. That is, the smaller the tensile stress and the instantaneous strain, the better the stretch characteristics.
  • the cylindrical stretch label 10 can be stretched 60% or more in at least the circumferential direction, and the preferred one can stretch 75% or more.
  • the cylindrical stretch label 10 has an instantaneous strain (50 mm / min) after stretching 60% in the circumferential direction of 13% or less, preferably 11.5% or less, more preferably 10.5% or less, and most preferably. The thing is 10% or less.
  • the instantaneous strain (6000 mm / min) after stretching 60% in the circumferential direction is preferably 30% or less, more preferably 20% or less, further preferably 18% or less, and particularly preferably 15% or less.
  • the cylindrical stretch label 10 preferably has an instantaneous strain (50 mm / min) after stretching 75% in the circumferential direction of 13% or less, more preferably 11.5% or less, and even more preferably 10.5%.
  • the most preferable one is 10% or less.
  • the instantaneous strain (6000 mm / min) after stretching 75% in the circumferential direction is preferably 30% or less, more preferably 20% or less, further preferably 18% or less, and particularly preferably 15% or less.
  • the lower limit of the instantaneous strain of the cylindrical stretch label 10 is theoretically zero, but there are few cases where it is actually zero. For this reason, the lower limit of the instantaneous strain of the cylindrical stretch label 10 exceeds 0%, preferably 1% or more.
  • the stretch characteristic of the cylindrical stretch label 10 can also be expressed by permanent set.
  • Permanent strain (%) indicates the degree to which the evaluation sample deformed without returning to its original length after the tensile test, similar to the instantaneous strain, but differs from the instantaneous strain in that it is measured 4 weeks after the load is removed.
  • the extension speed of the evaluation sample in the tensile test when measuring permanent set is “50 mm / min”. The smaller the permanent set, the higher the recoverability of the label and the better the stretch characteristics.
  • the permanent set after stretching 60% in the circumferential direction (50 mm / min) is preferably 11% or less, more preferably 8% or less, still more preferably 7% or less, and particularly preferably 6% or less.
  • the elongation in the height direction (50 mm / min) when the tensile stress in the height direction tensile test is 4.3 N / mm 2 is 9% or less. (For example, 1 to 9%) is preferable, 4 to 9% is more preferable, and 5 to 8% is particularly preferable.
  • the tubular stretch label 10 has a tensile stress (hereinafter referred to as F10 value) of at least 10% when stretched at least 10% in the circumferential direction, preferably 1 to 10 N / mm 2 , more preferably 2 to 8 N / mm 2 , particularly preferably 3 to 7 N / mm 2 .
  • the tensile stress (hereinafter referred to as F60 value) when stretched at least 60% in the circumferential direction is preferably 1 to 12 N / mm 2 , more preferably 2 to 10 N / mm 2 , and particularly preferably 3 ⁇ 9 N / mm 2 .
  • the lower limit value of the F10 value and the F60 value is too low, the tightening force of the container becomes too weak in the stretched state, and a good-looking wearing state may not be obtained.
  • the cylindrical stretch label 10 has a high stretch rate of 60% or more in the circumferential direction, an instantaneous strain (50 mm / min) after 60% stretch in the circumferential direction is 13% or less, and an F10 value in the circumferential direction. Is 10 N / mm 2 or less, both of which are small values. That is, the cylindrical stretch label 10 has excellent stretch characteristics that are not found in conventional stretch labels. Furthermore, the cylindrical stretch label 10 has good manufacturing aptitude as described above while having excellent stretch characteristics.
  • FIG. 3 is a perspective view showing a labeled container 20 that is provided with a cylindrical stretch label 10 having the above-described configuration and a container 21 and that is attached to the container 21 in a state where the cylindrical stretch label 10 extends in the circumferential direction. It is.
  • the labeled container 20 includes a cylindrical stretch label 10 and a container 21.
  • the cylindrical stretch label 10 is attached following the container 21 in a state of being stretched in the circumferential direction. That is, the circumferential length of the cylindrical stretch label 10 before being attached to the container 21 is set to be smaller than the circumferential length of the container 21 where the cylindrical stretch label 10 is attached, and the label is in an extended state. It is installed.
  • the container 21 is positioned between the barrel 22 having a substantially circular cross section cut in the radial direction, a neck 23 having a smaller diameter than the barrel 22, and the barrel 22 and the neck 23.
  • the container includes a shoulder portion 24 that is a portion to be reduced in diameter and a cap portion 25 that is attached to the neck portion 23.
  • the container 21 is a so-called PET bottle filled with a beverage, for example.
  • the cylindrical stretch label 10 is not limited to a beverage container such as a PET bottle illustrated in FIG. 3, and can be mounted in a variety of ways such as a seasoning container, a sanitary container such as a shampoo, a detergent container, a cosmetic container, and a pharmaceutical container. .
  • a plurality of ribs 26 a and 26 b are formed on the body portion 22.
  • the ribs 26 a are formed at the upper part of the body part 22, and the ribs 26 b are formed at the lower part of the body part 22.
  • the ribs 26 a and 26 b are concave portions formed in a ring shape in the circumferential direction of the body portion 22, and have a function of increasing the rigidity of the body portion 22.
  • the body portion 22 has a constricted shape in the center in the vertical direction.
  • the body portion 22 is divided into the upper and lower portions of the constricted portion, and the body portion 22 has a maximum body portion dm having a maximum circumference.
  • the said narrow part becomes the minimum trunk
  • the labeled container 20 including the maximum body part dm and the minimum body part ds, near the intermediate position between the upper end of the body part 22 (the boundary position between the body part 22 and the shoulder part 24) and the lower end of the body part 22.
  • a cylindrical stretch label 10 is attached so as to cover the above.
  • the maximum circumference is indicated at the maximum trunk dm
  • the minimum circumference is indicated at the minimum trunk ds.
  • the portion where the cylindrical stretch label 10 is attached, if the portion where the circumference is maximum is defined as the maximum diameter portion Dm and the portion where the circumference is minimum is defined as the minimum diameter portion Ds,
  • the portion attached to the maximum body portion dm is the maximum diameter portion Dm
  • the portion attached to the minimum body portion ds is the minimum diameter portion Ds.
  • the maximum body portion dm and the maximum diameter portion Dm coincide with each other
  • the minimum body portion ds and the minimum diameter portion Ds coincide with each other.
  • the mounting form of the cylindrical stretch label 10 is not limited to this. .
  • the cylindrical stretch label 10 including the shoulder portion 24 may be attached, and the shoulder portion 24 may be the minimum diameter portion Ds.
  • the cylindrical stretch label 10 can not be attached with a good appearance with a conventional stretch label, and even if the label is attached so as to include a portion having a diameter difference, it can be attached with a good appearance following its shape.
  • the ratio of the circumference of the maximum diameter portion Dm to the minimum diameter portion Ds is 1.05 to 1.75, or 1.10 to 1.60, or 1.20. Even if it is ⁇ 1.50, the tubular stretch label 10 is mounted with a good appearance as shown in FIG.
  • the cylindrical stretch label 10 can be suitably used for a portion having no diameter difference. Since the cylindrical stretch label 10 is attached in a stretched state in the circumferential direction, the tubular stretch label 10 can be attached to the container in a stretched state so as to have excellent stretch characteristics. For this reason, since the label excellent in a stretch characteristic can manufacture a labeled container using the cylindrical stretch label 10 with a small perimeter, material cost can be reduced. Therefore, when the cylindrical stretch label 10 is attached to a portion having no diameter difference (for example, a container body portion having no diameter difference), it is preferably attached in a state of being stretched 1.2 times or more in the circumferential direction. However, the present invention is not limited to this, and it may be attached in a state of being expanded by about 1.01 to 1.05 times.
  • the cylindrical stretch label 10 is attached in the stretched state as described above, a stress that tightens the container 21 is generated. By tightening the entire container with such stress, the container is prevented from being deformed by an external force, and the reinforcing effect of the container is exhibited.
  • the cylindrical stretch label 10 is attached to a container such as a squeeze container or a tube container, the label follows the container shape even when the amount of the contents is reduced, The effect that favorable integrity can be secured is recognized. This is particularly effective for an olefin-based container that easily undergoes thermal expansion.
  • the label will be reduced to the space where the cap was placed if the cap is removed while the cylindrical stretch label 10 is attached. A tampering effect is found that makes it difficult to enter the diameter and attach the cap again.
  • the cylindrical stretch label 10 is attached to the container 21 using, for example, a stretch labeler.
  • the stretch labeler is externally fitted to the container 21 in a state where the cylindrical stretch label 10 is stretched in the circumferential direction.
  • the label is elastically contracted and attached to follow the container 21.
  • the cylindrical stretch label 10 is preferably attached in a state of being stretched in the circumferential direction by at least about 2%, and can be attached in a state of being stretched by about 60%.
  • the cylindrical stretch label 10 can be attached without heating. Since the container does not undergo thermal deformation when attached, the weight of the container can be reduced, and the contents can be decomposed and separated by heat. Can also be suppressed.
  • the design of the above embodiment can be changed within a range that does not impair the object of the present invention.
  • sticker part 13 formed by heat sealing is illustrated, a design change can be suitably carried out besides this.
  • the cylindrical stretch label 10 can strongly bind a plurality of containers, and is also suitable for an integrated sales application.
  • 4 to 6 are cross-sectional views showing seal portions 13x, 13y, and 13z having different joining forms. 4 to 6, the same components as those in the above embodiment are denoted by the same reference numerals, and redundant description is omitted.
  • the seal portion 13x illustrated in FIG. 4 is a so-called envelope-bonded joining form in which the inner surface of the edge 10xa located outside the cylindrical stretch label 10x and the outer surface of the edge 10xb located inside are joined by an adhesive 14. It is.
  • the adhesive 14 is not particularly limited, and a thermoplastic resin-based or elastomer-based adhesive can be applied. Since the cylindrical stretch label 10x is sealed using the adhesive 14, the printing layer 12 can be formed on the entire inner surface of the film base 11.
  • a non-joining portion that is not joined to the edge 10xb is extended from the seal portion 13x and provided with a knob 15 at the end of the edge 10xa located outside the cylindrical body.
  • the non-joined portion does not exist at the edge 10xb located inside the cylindrical body.
  • pick part 15 is a part utilized when peeling the cylindrical stretch label 10x from the container 21, Comprising: It has a size which can be picked with a fingertip at least.
  • the perforation line does not have to be provided as the peeling means, so that the label is not easily broken during the mounting process and the distribution process, and the cylindrical stretch is disposed at the time of disposal.
  • the label 10x can be easily peeled from the container 21.
  • the seal portion 13x may have a configuration in which the entire area of the overlapping portion of the end edge 10xa and the end edge 10xb is joined except for the knob portion 15, but within a range that does not peel when stress is applied, such as when a label is attached.
  • the adhesive strength may be weakened by applying the adhesive 14 in a predetermined pattern (for example, a stripe shape, a lattice shape, a dot shape, or the like). Or in order to weaken adhesive strength, you may apply the ink for glue suppression containing a silicone type resin etc. on the layer which consists of the adhesive agent 14 with a predetermined pattern.
  • the seal portion 13x is broken when the knob portion 15 is picked and the cylindrical stretch label 10x is peeled off. Thus, the peelability of the label is further improved by appropriately suppressing the adhesive strength.
  • the seal portion 13y illustrated in FIG. 5 is a so-called joint-bonded joining form in which the inner surfaces of one end edge 10ya and the other end edge 10yb of the cylindrical stretch label 10y are joined together.
  • the inner surfaces of the seal portion 13y are joined by heat sealing. For this reason, the printed layer 12 is not formed on the seal portion 13y in order to ensure heat sealability.
  • the seal portion 13z illustrated in FIG. 6 is a so-called joint-bonded joining form in which the outer surfaces of one end edge 10za and the other end edge 10zb of the cylindrical stretch label 10z are joined together.
  • the seal portion 13z is formed by heat sealing similarly to the seal portion 13y.
  • the seal portion 13z is a heat seal between the outer surfaces, the printing layer 12 can be formed on the entire inner surface of the film base 11 including the seal portion 13z. For this reason, if the printing layer 12 has coloring property, even if the film base material 11 is transparent, a clear part cannot be seen.
  • the seal portions 13y and 13z may be formed using the adhesive 14.
  • Tables 1 and 2 show the resins constituting the stretch labels of Examples and Comparative Examples, the stretch ratio of the film substrate, the evaluation results of the obtained stretch labels, and the like.
  • linear low density polyethylene (“Umerit 715FT” manufactured by Ube Maruzen Polyethylene Co., Ltd.) was used as a resin component constituting the film base material.
  • an extruder having a merging method of feed block type 2 and 3 layer type was used for the production of the film substrate.
  • the above-mentioned linear low density polyethylene is put into an extruder heated to 210 ° C., the molten resin is supplied to a T-die, and extruded from a slit onto a casting drum cooled to 25 ° C. in one type and three layers, and rapidly solidified.
  • an elongated body of a single-layer unstretched film substrate was obtained.
  • the long body of the unstretched film substrate is stretched by heating at a stretching ratio of 1.06 times in the MD direction and a stretching temperature of 52 ° C., and then, at a stretching ratio of 1.06 times in the TD direction.
  • the film was stretched by heating at a stretching temperature of 85 ° C. to obtain a long body of a biaxially stretched film substrate having a thickness of 50 ⁇ m.
  • the stretching method was a roll method in the MD direction and a tenter method in the TD direction. Five colors of black, indigo, red, yellow, and white are printed on one surface of the long body of the biaxially stretched film substrate by gravure printing using solvent-based ink while transporting the long body in the MD direction.
  • a cylindrical elongated label was obtained by sealing the elongated body on which the printed layer was formed into a cylindrical shape, and obtaining the tubular elongated body by cutting it into individual label sizes.
  • the seal portion is an inner surface of the film base located on the outer side of the cylindrical body and a film base located on the inner side of the cylindrical body. It is formed by heat-sealing with the outer surface.
  • a stress-strain curve showing the relationship between the tensile stress and the elongation (strain) of the sample piece is obtained. From the obtained stress strain curve, the F10 value, which is the tensile stress when the sample piece is extended by 10%, and the F60 value, which is the tensile stress when the sample piece is extended by 60%, were obtained. Further, the instantaneous strain (%) was measured at a test speed of 6000 ⁇ 600 mm / min in the 60% tensile test.
  • the stretch characteristics shown in Table 1 were evaluated using the above-described instantaneous strain at 60% elongation (50 ⁇ 5 mm / min (condition 1) and 6000 ⁇ 600 mm / min (condition 2)).
  • the evaluations of ⁇ , ⁇ , ⁇ , and ⁇ are based on the following criteria.
  • A Stretched 60% or more in the circumferential direction, and the instantaneous strain of condition 1 is 13% or less, The instantaneous strain under condition 2 is less than 7%.
  • ⁇ Stretched 60% or more in the circumferential direction, and the instantaneous strain under condition 1 is 13% or less.
  • the instantaneous strain of condition 2 is 7% or more and less than 14%.
  • condition 1 is 60% or more in the circumferential direction
  • condition 2 instantaneous strain is 14% or more and less than 21% ⁇ : Cannot stretch 60% or more in the circumferential direction, or Condition 1 instantaneous strain is 13% or more, or Condition 2 instantaneous strain is 21% or more
  • a rectangular sample piece having a length of 15 ⁇ 0.1 mm in the circumferential direction and a length of 200 mm in the height direction (distance between marked lines 100 ⁇ 2 mm) is prepared from the cylindrical stretch label, and the long side of the sample piece Tensile test (50 ⁇ 5 mm / min) is performed with the direction (height direction of the cylindrical stretch label) as the measurement direction, and the elongation (%) of the sample piece when the tensile stress is 4.3 N from the stress strain curve obtained by the test ) was measured.
  • the refractive index was measured based on JIS K 7105,7142 using the film base material before forming the printed layer. The refractive index was measured using a polarizing filter in the height direction, the circumferential direction, and the thickness direction when the film substrate was a cylindrical body. Details are given below.
  • Test method Conforms to JIS K 7142 method A Measuring device: Abbe refractometer ("Abbe refractometer NAR-2T" manufactured by Atago Co., Ltd.) Light source: Na white light source (589 nm)
  • Example 2 In Example 1, except that the film was heat-drawn at a draw ratio of 1.30 times and a draw temperature of 75 ° C. in the MD direction, and then heat-drawn at a draw ratio of 1.30 times and a draw temperature of 88 ° C. in the TD direction. Obtained a cylindrical stretch label in the same manner as in Example 1. Then, the stretch properties and the like were evaluated in the same manner as in Example 1 (the same applies hereinafter).
  • Example 3 Two types of linear low density polyethylene (“Umerit 715FT” (A) and “Umerit 0540F” (B)) manufactured by Ube Maruzen Polyethylene Co., Ltd.) are used as the resin component constituting the film substrate.
  • Umerit 715FT A
  • Umerit 0540F B
  • the stretching conditions are the same as in Example 2.
  • Example 4 A cylindrical stretch label was obtained in the same manner as in Example 1 except that linear low density polyethylene (“Umerit 1540F” manufactured by Ube Maruzen Polyethylene Co., Ltd.) was used as the resin component constituting the film substrate.
  • linear low density polyethylene (“Umerit 1540F” manufactured by Ube Maruzen Polyethylene Co., Ltd.) was used as the resin component constituting the film substrate.
  • Example 5 A cylindrical stretch label was obtained in the same manner as in Example 1 except that linear low density polyethylene (“Umerit 0540F” manufactured by Ube Maruzen Polyethylene Co., Ltd.) was used as the resin component constituting the film substrate.
  • linear low density polyethylene (“Umerit 0540F” manufactured by Ube Maruzen Polyethylene Co., Ltd.) was used as the resin component constituting the film substrate.
  • Example 6 Two types of linear low density polyethylene (“Umerit 2540F” (A) and “Umerit 715FT” (B)) manufactured by Ube Maruzen Polyethylene Co., Ltd.) are used as the resin component constituting the film substrate. And the cylindrical stretch label which has a layer structure of A / B / A whose layer ratio is 1/13/1 was obtained. The stretching conditions are the same as in Example 1.
  • Example 7 Two types of linear low density polyethylene (“Umerit 2540F” (A) and “Umerit 0540F” (B)) manufactured by Ube Maruzen Polyethylene Co., Ltd.) are used as the resin component constituting the film substrate. And the cylindrical stretch label which has a layer structure of A / B / A whose layer ratio is 1/13/1 was obtained. The stretching conditions are the same as in Example 1.
  • Example 1 the cylindrical stretch label was obtained like Example 1 except not having extended
  • Example 3 As in Example 1, except that a 60 ⁇ m-thick vinyl acetate stretch film (“Suzuron LE E-800F” manufactured by Aicero Chemical Co., Ltd.) was used as the long film substrate (stretch film). A cylindrical stretch label was obtained.
  • Example 4 As in Example 1, except that a 80 ⁇ m-thick vinyl acetate stretch film (“Suzuron LE E-800F” manufactured by Aicero Chemical Co., Ltd.) was used as the long body of the film substrate (stretch film). A cylindrical stretch label was obtained.
  • a 80 ⁇ m-thick vinyl acetate stretch film (“Suzuron LE E-800F” manufactured by Aicero Chemical Co., Ltd.) was used as the long body of the film substrate (stretch film).
  • a cylindrical stretch label was obtained.
  • each of the cylindrical stretch labels of the Examples stretches 60% or more, F10 value is 6.4 N / mm 2 or less, F60 value is 8.8 N / mm 2 or less, 60% stretch.
  • the instantaneous strain at time (50 mm / min) was 10.3% or less and the instantaneous strain at 60% elongation (6000 mm / min) was 13.9% or less, indicating excellent stretch characteristics. Further, the positional deviation of the print layer could not be confirmed, and the printability was good.
  • the cylindrical stretch labels of Comparative Examples 2 to 4 have an instantaneous strain (6000 mm / min) at 60% elongation of 32.3% or more. Compared to stretchability. Further, the label of Comparative Example 1 had good stretch properties but poor printability.
  • the refractive index in the height direction is larger than the refractive index in the thickness direction, and 1.507 to
  • good printability can be realized even with a highly flexible film material having excellent stretch characteristics.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

L'invention concerne une étiquette étirée cylindrique (10) qui comprend un matériau de base (11) en film formé de manière cylindrique et une couche d'impression (12) formée sur au moins une surface du matériau de base (11) en film. L'étiquette est extensible sur au moins 60 % ou plus dans la direction circonférentielle et présente une déformation instantanée (50 mm/mn) de 13 % ou moins après une extension de 60 % dans la direction circonférentielle. Le matériau de base (11) en film comprend, en tant que composant principal, un polyéthylène à faible densité linéaire, avec une densité comprise entre 0,880 et 0,930 g/cm3 et qui a un indice de réfraction de 1,507 à 1,528 dans la direction de la hauteur, supérieur à l'indice de réfraction dans la direction de l'épaisseur.
PCT/JP2012/084140 2011-12-29 2012-12-28 Etiquette étirée cylindrique et récipient avec étiquette WO2013100141A1 (fr)

Priority Applications (1)

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JP2013551862A JP6193763B2 (ja) 2011-12-29 2012-12-28 筒状ストレッチラベル及びラベル付き容器

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JP2011290268 2011-12-29
JP2011-290268 2011-12-29

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3073471A4 (fr) * 2013-11-22 2017-08-02 Fuji Seal International, Inc. Étiquette étirable et son procédé de production
WO2022019227A1 (fr) * 2020-07-20 2022-01-27 株式会社フジシールインターナショナル Procédé de fabrication de récipient avec étiquette et récipient avec étiquette
EP3820339A4 (fr) * 2018-07-11 2022-04-13 Kao USA, Inc. Ensemble de conteneur et système et procédé associés
EP4245680A1 (fr) * 2022-03-16 2023-09-20 Henkel AG & Co. KGaA Bouteille empilable en plastique avec stretch-sleeve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0847959A (ja) * 1994-08-08 1996-02-20 Tamapori Kk ストレッチラベル用フィルム
JPH09109256A (ja) * 1995-10-18 1997-04-28 Fuji Seal Co Ltd ストレッチラベル
JP2002127332A (ja) * 2000-10-23 2002-05-08 Tamapori Kk ストレッチラベル用フィルム
JP2004195900A (ja) * 2002-12-20 2004-07-15 Idemitsu Unitech Co Ltd フィルム及びストレッチラベル
JP2005221982A (ja) * 2004-02-09 2005-08-18 Fuji Seal International Inc ガスバリア性ストレッチラベル及びラベル付プラスチック製ボトル
JP2009511292A (ja) * 2005-10-07 2009-03-19 ダウ グローバル テクノロジーズ インコーポレイティド 多層弾性フィルム構造

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0847959A (ja) * 1994-08-08 1996-02-20 Tamapori Kk ストレッチラベル用フィルム
JPH09109256A (ja) * 1995-10-18 1997-04-28 Fuji Seal Co Ltd ストレッチラベル
JP2002127332A (ja) * 2000-10-23 2002-05-08 Tamapori Kk ストレッチラベル用フィルム
JP2004195900A (ja) * 2002-12-20 2004-07-15 Idemitsu Unitech Co Ltd フィルム及びストレッチラベル
JP2005221982A (ja) * 2004-02-09 2005-08-18 Fuji Seal International Inc ガスバリア性ストレッチラベル及びラベル付プラスチック製ボトル
JP2009511292A (ja) * 2005-10-07 2009-03-19 ダウ グローバル テクノロジーズ インコーポレイティド 多層弾性フィルム構造

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3073471A4 (fr) * 2013-11-22 2017-08-02 Fuji Seal International, Inc. Étiquette étirable et son procédé de production
EP3820339A4 (fr) * 2018-07-11 2022-04-13 Kao USA, Inc. Ensemble de conteneur et système et procédé associés
WO2022019227A1 (fr) * 2020-07-20 2022-01-27 株式会社フジシールインターナショナル Procédé de fabrication de récipient avec étiquette et récipient avec étiquette
EP4245680A1 (fr) * 2022-03-16 2023-09-20 Henkel AG & Co. KGaA Bouteille empilable en plastique avec stretch-sleeve

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JPWO2013100141A1 (ja) 2015-05-11
JP6193763B2 (ja) 2017-09-06

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