WO2018163592A1 - Récipient d'emballage - Google Patents

Récipient d'emballage Download PDF

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Publication number
WO2018163592A1
WO2018163592A1 PCT/JP2018/000343 JP2018000343W WO2018163592A1 WO 2018163592 A1 WO2018163592 A1 WO 2018163592A1 JP 2018000343 W JP2018000343 W JP 2018000343W WO 2018163592 A1 WO2018163592 A1 WO 2018163592A1
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WO
WIPO (PCT)
Prior art keywords
wrap film
coating layer
varnish coating
packaging container
film
Prior art date
Application number
PCT/JP2018/000343
Other languages
English (en)
Japanese (ja)
Inventor
孝幸 関
有紀 飯田
Original Assignee
株式会社クレハ
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 株式会社クレハ filed Critical 株式会社クレハ
Priority to CN201880004730.5A priority Critical patent/CN110352165B/zh
Priority to JP2019504351A priority patent/JP6568669B2/ja
Priority to EP18763458.9A priority patent/EP3594148A4/fr
Publication of WO2018163592A1 publication Critical patent/WO2018163592A1/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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
    • B65D83/0847—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture at the junction of two walls
    • B65D83/0852—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture at the junction of two walls with means for assisting dispensing
    • B65D83/0882—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture at the junction of two walls with means for assisting dispensing and for cutting interconnected articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/015—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/002—Hand-held or table apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/0073—Details
    • B65H35/008—Arrangements or adaptations of cutting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
    • B65H2402/44—Housings
    • B65H2402/443—Housings with openings for delivering material, e.g. for dispensing webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1944—Wrapping or packing material

Definitions

  • the present invention relates to a packaging container.
  • it is related with the packaging container which accommodates a wrap film.
  • a packaging container in which a varnish is applied to a front plate of a packaging container body is known as a packaging container for containing a wrap roll. Since the varnish is applied to the front plate of the packaging container body, the drawn wrap film can be sufficiently brought into close contact with the front plate and locked, and the wrap film can be easily cut. Furthermore, after cutting, the wrap film can be prevented from winding back to the wrap roll side, and the wrap film can be easily pulled out when used next time.
  • Patent Document 1 discloses a packaging container having a varnish coating layer for temporarily fixing a wrap film, wherein the shear strength and T-peel strength of the varnish coating layer with respect to the wrap film are defined.
  • the strength of adhesion of the wrap film to the varnish coating layer is too strong, the wrap film becomes difficult to pick up when the wrap film is pulled out again, and problems such as tearing and vertical tearing are likely to occur.
  • the strength of adhesion of the wrap film to the varnish coating layer increases with time. For this reason, if the elapsed time until the wrap film is drawn out again for a long period of time, the above-described problem is more likely to occur.
  • an object of the present invention is to provide a packaging container in which the ease of pinching hardly changes with time, and the ease of pinching can be maintained.
  • a packaging container is a packaging that includes a wrap film wound body, a container body that has an open top surface, and a lid that is connected to the rear plate of the container body.
  • a varnish coating layer is provided on the front plate of the container body, and the varnish coating layer satisfies the following condition 1.
  • T-type peel strength measured using a 25 mm wide varnish coating layer sample piece and a wrap film in accordance with “Test method for adhesive tape / adhesive sheet”.
  • T i and the T-type peel strength T 3d 3 days after application satisfy ⁇ (T 3d ⁇ T i ) / T i ⁇ ⁇ 100 ⁇ 50.
  • FIG. 1 It is a perspective view which shows an example of the packaging container which concerns on this embodiment. It is a rear view which shows the cover front plate and cutting blade of the packaging container which concern on this invention. It is a front view of the front board which shows the varnish application layer of the packaging container concerning the present invention.
  • FIG. 1 is a perspective view showing a packaging container according to this embodiment.
  • the packaging container 100 is a box for storing a wrap roll (wrap film wound body) 1 in which the wrap film 2 is wound in a roll shape with the axial direction of the wrap roll 1 parallel to the longitudinal direction of the packaging container 100.
  • the packaging container 100 includes a container body 11 and a lid body 21. Although details will be described later, the container body 11 is provided with a flap 51 and a varnish coating layer 31, and the lid body 21 is provided with a cutting blade 41.
  • the packaging container 100 in this embodiment is a carton formed with paperboard, a raw material and a shape are not limited to this. For example, plastic other than paper may be used. Further, the shape may be a cylindrical shape other than the box shape.
  • the container body 11 is a box-shaped container having an open top surface, and has a rectangular parallelepiped shape with a bottom surface.
  • the container body 11 includes a bottom plate 12, a front plate 13, a rear plate 14, a side plate 15a, and a side plate 15b.
  • the front plate 13 and the rear plate 14 are erected on the long side of the bottom plate 12.
  • the side plates 15 a and 15 b are erected on the short side of the bottom plate 12.
  • the front plate 13 is connected to each of the side plates 15a and 15b, and the rear plate 14 is also connected to each of the side plates 15a and 15b, so that the front plate 13, the side plate 15a, the rear plate 14 and the side are connected.
  • the face plate 15b is continuous.
  • the container body 11 has an open top surface and forms an opening 16.
  • the lid body 21 is a lid that is connected to the rear plate 14 of the container body 11 and covers the opening 16 on the upper surface of the container body 11 so as to be freely opened and closed.
  • the lid body 21 includes a lid top plate 22, a lid front plate 23, and lid side plates 24a and 24b.
  • the lid top plate 22 is connected to the upper side 14 a of the rear plate 14 of the container body 11 at one long side. When the lid 21 is closed, the opening 16 on the upper surface of the container body 11 is covered by the lid top plate 22.
  • the lid front plate 23 is connected to the other long side of the lid top plate 22.
  • the lid side plates 24 a and 24 b are connected to the short sides of the lid top plate 22.
  • the lid front plate 23 is configured to cover a portion of the front plate 13 of the container body 11 when the lid 21 is closed. Therefore, when the wrap film 2 is pulled out and the lid body 21 is closed, the wrap film 2 is placed between the lid front plate 23 and the front plate 13 of the container main body 11 at a portion where the lid front plate 23 covers the front plate 13 of the container main body 11. It will be sandwiched. Further, in the present embodiment, when the lid body 21 is closed, the lid side plates 24a and 24b are configured to cover parts of the side plates 15a and 15b, respectively.
  • a varnish coating layer 31 is provided on the front plate 13 of the container body 11.
  • the varnish coating layer 31 is provided to bring the drawn wrap film 2 into close contact with the front plate 13 and lock it.
  • the wrap film 2 adheres to the varnish coating layer 31. Therefore, when the lid 21 is closed and cut, the wrap film 2 can be reliably locked, and the wrap film 2 can be easily cut. Further, it is possible to prevent the drawn wrap film 2 from being rewound onto the wrap roll 1 after the wrap film 2 is cut.
  • the varnish coating layer 31 is provided so as to come into contact with the wrap film 2 when the wrap film 2 is sandwiched between the lid front plate 23 and the front plate 13 when the lid 21 is closed.
  • FIG. 3 shows one mode of the pattern of the varnish coating layer 31.
  • the varnish coating layer 31 is provided at the center varnish coating layer 31 a provided at the center of the upper side of the front plate 13 (opening side of the container body), and at the end in the longitudinal direction on the upper side of the front plate 13.
  • the end varnish coating layer 31b is formed, and a flap varnish coating layer 31c provided on a flap 51 to be described later.
  • the varnish coating layer 31 has a T-type peel strength that satisfies the following condition 1 with respect to the wrap film 2.
  • T-type peel strength measured using a 25 mm wide varnish coating layer sample piece and a wrap film in accordance with “Test method for adhesive tape / adhesive sheet”.
  • T i and the T-type peel strength T 3d 3 days after application satisfy ⁇ (T 3d ⁇ T i ) / T i ⁇ ⁇ 100 ⁇ 50.
  • the above formula represents that the increase rate of the T-type peel strength after 3 days from the sticking to the T-type peel strength immediately after the wrap film is pasted is 50% or less.
  • the T-type peel strength between the sample piece and the wrap film means the peel strength when the wrap film 2 in close contact with the varnish coating layer 31 is pulled vertically with respect to the varnish coating layer 31. . Specifically, it corresponds to the 90 ° peeling adhesive strength in the above-mentioned JIS Z-0237: 2009. Detailed test conditions are as in Examples described later.
  • the increase in adhesion strength is small even if a long time elapses after the wrap film is pulled out and cut and then pulled out again. Therefore, the ease of pinching of the wrap film 2 is less likely to change with time, and the ease of pinching can be maintained. As a result, it is less likely to lead to problems such as tearing and vertical tearing.
  • the varnish coating layer 31 in this embodiment has a T-type peel strength that satisfies the following condition 2 with respect to the wrap film 2.
  • T-peel strength T i satisfies the above condition 2
  • the adhesion of the varnish coating layer 31 of cling film 2 drawn is, the wrap film 2 from or paste immediately after brought into close contact with the varnishing layer 31 3 Even after days, it can be prevented from becoming too strong.
  • the T-type peel strength T i immediately after attaching the wrap film is 4.0 ⁇ 10 ⁇ 2 N / 25 mm or less, preferably 3.5 ⁇ 10 ⁇ 2 N / 25 mm or less, and 2.5 ⁇ 10 -2 N / 25 mm or less is more preferable. If T-type peel strength Ti is 3.5 ⁇ 10 ⁇ 2 N / 25 mm or less, even if varnish is applied to the front plate over a wide range, the T-type peel strength is low, so it is easy to pinch and suppress problems such as tearing. Can provide easy-to-use packaging containers. If the T-type peel strength T i is 2.5 ⁇ 10 ⁇ 2 N / 25 mm or less, the T-type peel strength immediately after the lap film is pasted is low. The mold peel strength can be maintained.
  • the T-type peel strength of the varnish coating layer 31 with respect to the wrap film 2 is determined by the film forming conditions such as the UV irradiation amount and the drying speed of the varnish coating layer 31, the plate depth of the varnish coating layer 31, the pattern of the varnish coating layer 31, and the varnish component It can be adjusted by adjusting.
  • the varnish coating layer 31 is not limited to the pattern as shown in FIG. 3 and may be other patterns.
  • the pattern described in Patent Document 1 may be used.
  • the central varnish coating layer 31a is used as the varnish coating layer 31, but other varnish coating layers may be used as long as the varnish coating layer 31 is used. Good.
  • a region where the varnish coating layer 31c exists continuously over the entire measurement width may be selected and used. In the case where there is no region where the varnish coating layer is continuously present over the entire width of measurement, such that varnish coating portions and varnish non-coating portions are alternately present, the entire varnish coating pattern formed by a plurality of varnish coating portions And the part surrounded by the outline may be regarded as the varnish application part.
  • the varnish used for the varnish coating layer is an active energy ray-curable resin composition that is radically polymerized and cured by active energy rays such as ultraviolet rays and electron beams, and includes an active energy ray-curable resin.
  • the active energy ray-curable resin contains a compound having an ethylenically unsaturated double bond.
  • the ultraviolet curable resin composition and the ultraviolet curable resin which are radically polymerized and cured by ultraviolet irradiation will be described.
  • the ultraviolet curable resin is composed of an oligomer or a monomer, or an oligomer and a monomer.
  • the oligomer imparts resistance and flexibility to the varnish coating layer, and examples thereof include urethane acrylate having a (meth) acrylate group, polyester acrylate, acrylic acrylate, and epoxy acrylate.
  • the monomer is added for the purpose of improving the physical properties of the varnish coating layer and adjusting the viscosity of the ultraviolet curable resin composition, and examples thereof include monofunctional, bifunctional and polyfunctional monomers having a (meth) acrylate group. .
  • Monofunctional monomers include 2- (2-ethoxyethoxy) ethyl acrylate, stearyl acrylate, tetrahydrofurfuryl acrylate, lauryl acrylate, 2-phenoxyethyl acrylate, indecyl acrylate, isooctyl acrylate, tridecyl acrylate, caprolactone acrylate, 4 -Hydroxybutyl acrylate, ethoxylated noniphenol acrylate, propoxylated nonylphenol acrylate, phenoxyethyl acrylate, phenoxydiethylene acrylate, ethylene oxide modified nonylphenyl acrylate, methoxytriethylene glycol acrylate, ethylene oxide 2-ethylhexyl acrylate, isobornyl acrylate and di Propylene glycol Relate etc. and their methacrylate monomers.
  • Bifunctional monomers include 1,3-butanediol diacrylate, 1,4-butanediol diacrylate, polyethylene glycol diacrylate, polypropylene glycol diacrylate, neopentyl glycol diacrylate, propoxylated neopentyl glycol diacrylate, and ethoxylation Neopentyl glycol diacrylate, hydroxypivalate neopentyl glycol diacrylate, (hydrogenated) bisphenol A diacrylate, (hydrogenated) ethylene oxide modified bisphenol A diacrylate, (hydrogenated) propylene glycol modified bisphenol A diacrylate, 1, 6-hexanediol diacrylate, 2-ethyl, 2-butyl-propanediol diacrylate and 1,9-nonanedio Diacrylate as well as those methacrylate monomers.
  • polyfunctional monomers examples include tris (2-hydroxyethyl) isocyanurate triacrylate, ethylene oxide-modified trimethylolpropane triacrylate, propylene oxide-modified trimethylolpropane triacrylate, propylene oxide-modified glyceryl triacrylate, pentaerythritol triacrylate, and trimethylol.
  • the UV curable resin is preferably 0 to 80% by weight of oligomer and 20 to 100% by weight of monomer in the UV curable resin from the viewpoint of film properties.
  • radical-polymerizable crosslinking component When the radical-polymerizable crosslinking component is crosslinked by ultraviolet rays, acetophenones, benzophenones, thioxanthones, aromatic diazonium salts, metallocenes, and the like can be used as photopolymerization initiators. Moreover, it is also possible to use a polymerization accelerator together, and examples of the polymerization accelerator include amines and phosphines.
  • the ultraviolet curable resin composition can be further blended with an organic / inorganic filler as required, and can impart gloss adjustment and wear properties.
  • organic fillers include resins such as epoxy resins, melamine resins, urea resins, acrylic resins, polyimide resins, Teflon (registered trademark) resins, polyethylene resins, polyester resins, polyester resins, and polyamide resins until they are insoluble in solvents.
  • organic fillers include organic fillers that have been polymerized into fine particles.
  • the inorganic filler include alumina, talc, magnesium carbonate, calcium carbonate, natural mica, synthetic mica, aluminum hydroxide, precipitated barium sulfate, precipitated barium carbonate, barium titanate, and barium sulfate.
  • the ultraviolet curable resin composition can be blended with a colorant and various additives, for example, a leveling agent and an antifoaming agent, if necessary, and the additive is not particularly limited, such as a silicone type and a polymer type.
  • the varnish used for the varnish coating layer is preferably added with a modified vegetable oil such as epoxidized soybean oil at a ratio of 8% or less in order to impart appropriate adhesion and peelability between the wrap film and the varnish. .
  • UV curing method As a method of curing the ultraviolet curable resin composition by ultraviolet irradiation, a high-pressure mercury lamp, ultra-high pressure mercury lamp, carbon arc lamp, metal halide lamp, xenon lamp, chemical lamp, electrodeless discharge lamp that emits light in the wavelength range of 150 to 450 nm. and using the LED or the like, 30 ⁇ 5000mJ / cm 2, may be preferably 100 ⁇ 1000mJ / cm 2 irradiation. After the ultraviolet irradiation, it can be cured completely by heating the ultraviolet curable resin composition as necessary.
  • the film thickness (film thickness after curing) when applying the ultraviolet curable resin composition is usually preferably 1 to 80 ⁇ m, more preferably 3 to 60 ⁇ m, and more preferably 5 to 50 ⁇ m. Is particularly preferred.
  • the film thickness is in the range of 1 to 80 ⁇ m, there is no inhibition of curing, the ultraviolet irradiation time can be shortened, and the productivity is good.
  • it is preferable to adjust the coating conditions so that the film thickness when the ultraviolet curable resin composition is applied is 10 ⁇ m or more.
  • the lid front plate 23 of the lid body 21 is provided with a plate-shaped cutting blade 41 for cutting the drawn wrap film 2.
  • the cutting blade 41 is provided over the entire width of the side opposite to the side connected to the lid top plate 22 of the lid front plate 23.
  • the cutting blade 41 is affixed to the inside of the lid front plate 23 such that the blade portion protrudes outward from the lid front plate 23.
  • the wrap film 2 is sandwiched between the front plate 13 and the lid front plate 23 of the container body 11. Can be fixed to. At that time, the cutting blade 41 comes into contact with the wrap film 2.
  • FIG. 2 is a view of the lid front plate 23 as seen from the back side.
  • the cutting blade 41 is attached to the inner surface of the lid front plate 23 in the lid 21, and the surface opposite to the side attached to the lid front plate 23 is exposed.
  • the surface on this side is referred to as an exposed surface of the cutting blade 41.
  • the exposed surface of the cutting blade 41 is a surface facing the outer surface of the front plate 13 of the container body 11 when the upper opening of the container body 11 is closed by the lid 21. That is, the surface is in contact with the wrap film 2 when the wrap film 2 is pulled out and the lid 21 is closed.
  • the surface of the cutting blade 41 that contacts the wrap film 2 when the wrap film 2 is cut has a shear strength that satisfies the following condition 3 with respect to the wrap film.
  • the shear strength between the cutting blade 41 and the wrap film 2 means the strength when the wrap film 2 brought into close contact with the cutting blade 41 is shifted parallel (shear direction) to the cutting blade 41. . Specifically, it corresponds to the 180 ° peeling adhesive strength in the above-mentioned JIS Z-0237: 2009. Detailed test conditions are as in Examples described later.
  • the shear strength of the exposed surface of the cutting blade 41 with respect to the wrap film 2 is high, when the lid 21 is opened to pinch the wrap film 2, the wrap film 2 is pulled toward the cutting blade 41, and the wrap film 2 may peel off from the varnish coating layer 31.
  • the wrap film 2 When the wrap film 2 is in close contact with the exposed surface of the cutting blade 41, it is difficult to pinch the wrap film 2 as compared with the case where it is in close contact with the varnish coating layer 31.
  • the wrap film 2 may be rewound onto the wrap roll 1 when the wrap film 2 is peeled off from the varnish coating layer 31.
  • the adhesive strength of the wrap film 2 at the cutting blade 41 is not too strong.
  • the wrap film 21 is opened when the lid body 21 is opened to draw the wrap film 2 next time. It is possible to prevent the film 2 from being pulled toward the cutting blade 41 and peeled off from the varnish coating layer 31, and as a result, it is possible to maintain a state in which the wrap film 2 can be easily pinched.
  • the exposed surface of the cutting blade 41 is preferably roughened so that the entire surface, at least the central region, satisfies the shear strength of the condition 3 so that the cutting blade 41 has a shear strength satisfying the condition 3 with respect to the wrap film 2. Processing has been applied.
  • the central region extends uniformly from the center in the length direction of the cutting blade 41 to both sides thereof, and has a length of 5% or more and 50% or less with respect to the total length of the cutting blade 41 in the length direction of the cutting blade 41. Is preferred.
  • the arithmetic average roughness Ra is preferably 0.1 ⁇ m or more and less than 0.4 ⁇ m, more preferably 0.15 ⁇ m or more and 0.3 ⁇ m or less.
  • the maximum height Rz of the cutting blade 41 is preferably 1.0 ⁇ m or more and 2.5 ⁇ m or less.
  • the arithmetic average roughness Ra and the maximum height Rz are values calculated by a method based on JIS B 0601: 2001.
  • the wrap film 2 When the shear strength immediately after bonding of the cutting blade 41 and the wrap film 2 is 0.1 N / 25 mm or less, the wrap film 2 is in close contact with the exposed surface of the cutting blade 41, and the wrap film 2 is rewound onto the wrap roll 1. Can be prevented. Usually, when the shear strength immediately after pasting the cutting blade and the wrap film is high, the wrap film comes into close contact with the cutting blade, and the wrap film easily rewinds to the wrap roll when the lid is opened.
  • the T-type peel strength immediately after pasting the varnish coat layer and the wrap film and the increase rate of the T-type peel strength 3 days after the pasting are 50% or more, or the T-type just after pasting
  • the peel strength is 4.0 ⁇ 10 ⁇ 2 N / 25 mm or more
  • the T-type peel of the varnish coating layer is possible even when the shear strength immediately after the cutting blade 41 and the wrap film 2 are bonded is high. Since the strength is high, the wrap film adheres to the varnish coating layer and is prevented from adhering to the cutting blade side.
  • the increase rate of the T-type peel strength is 50% or more, or the varnish coating layer has a T-type peel strength of 4.0 ⁇ 10 ⁇ 2 N / 25 mm or more immediately after the wrap film is pasted on the varnish coating layer.
  • problems such as difficulty, tearing and vertical tearing of the knob are likely to occur. Therefore, the cutting blade exposed surface and the wrap film are attached using a varnish coating layer in which the increase rate of the T-type peel strength after 3 days from the attachment to the T-type peel strength immediately after the wrap film is attached is 50% or less.
  • the wrap film adheres to the exposed surface of the cutting blade when the lid is opened, and the wrap film is prevented from rewinding to the wrap roll. Can do. If the varnish coating layer has an increase rate of T-type peel strength of 50% or less after 3 days from sticking to the T-type peel strength immediately after the wrap film is pasted, problems such as difficulty in gripping, tearing and vertical tearing will occur. Can be suppressed. Furthermore, since the wrap film is properly adhered to the varnish coating layer at the time of cutting the wrap film, even if the shear strength between the exposed surface of the cutting blade and the wrap film is a low value, good cutting is possible.
  • a flap 51 is provided on a part of the upper side (opening side) of the front plate 13 of the container body 11. As shown in FIG. 3, the flap 51 is constituted by the cut line 52 and the upper side of the front plate 13 by making a cut line 52 in the front plate 13, and is a part that floats outward from the front plate 13. It is.
  • the flap 51 is provided with a varnish coating layer 31c.
  • the wrap film 2 is sandwiched and fixed between the lid front plate 23 and the flap 51 having the varnish coating layer 31c when the wrap film 2 is cut.
  • the drawn wrap film 2 is reliably locked by the varnish coating layer 31c, and the wrap film 2 is easily cut.
  • the wrap film 2 is in close contact with the varnish coating layer 31c.
  • the flap 51 is lifted outward from the front plate 13, so that the wrap film 2 is easily picked up when the wrap film 2 is pulled out next time.
  • wrap film examples include polyvinylidene chloride film, polyvinyl chloride film, polyethylene film, polypropylene film, polymethylpentene film, polyester film, and ethylene vinyl acetate copolymer film.
  • the effect of the present invention becomes more remarkable.
  • a packaging container (100) includes a container main body (11) having an open upper surface that accommodates a wrap film wound body, and a lid connected to the rear plate (14) of the container main body.
  • a packaging container (100) including a body (21) a varnish coating layer (31, 31a, 31b, 31c) is provided on the front plate (13) of the container body (11), and the varnish coating layer (31 , 31a, 31b, 31c) satisfy the following condition 1.
  • T-type peel strength measured using a 25 mm wide varnish coating layer sample piece and a wrap film in accordance with “Test method for adhesive tape / adhesive sheet”.
  • T i and the T-type peel strength T 3d 3 days after application satisfy ⁇ (T 3d ⁇ T i ) / T i ⁇ ⁇ 100 ⁇ 50.
  • the varnish coating layer (31, 31a, 31b, 31c) further satisfies the following condition 2.
  • T-type peel strength T i is 4.0 ⁇ 10 ⁇ 2 N / 25 mm or less.
  • the packaging container (100) which concerns on one Embodiment of this invention WHEREIN:
  • the said cover body (21) is provided with the cutting blade (41) which cut
  • the surface of the cutting blade (41) that contacts the drawn wrap film (2) during cutting preferably satisfies the following condition 3.
  • the packaging container (100) which concerns on one Embodiment of this invention WHEREIN:
  • the said front board (13) is provided with the flap (51) which comprises the cut line (52) formed in the said front board (13).
  • the varnish coating layer (31c) is preferably provided on at least the front surface of the flap (51).
  • the wrap film (2) is preferably a polyvinylidene chloride film.
  • T-peel strength test The strength measured using a varnish coating layer sample piece having a width of 25 mm and a wrap film according to JIS Z-0237: 2009 “Testing method for adhesive tape / adhesive sheet” is defined as T-type peel strength.
  • a coating solution was prepared by mixing SP varnish (manufactured by Toyo Ink Co., Ltd.) made of an ultraviolet curable resin and a diluting solvent (manufactured by Toyo Ink Co., Ltd.) at a volume ratio of 10: 3.
  • the SP varnish used here is an ultraviolet curable gloss varnish for flexographic printing machines.
  • the coating solution was applied to the packaging container with a printing pattern shown in FIG. 3 at a plate depth of 40 ⁇ m, 50 ⁇ m or 60 ⁇ m.
  • the coating film was irradiated with a high-pressure mercury lamp to cure the coating film, and a packaging container having a varnish coating layer was produced.
  • the central varnish coating layer portion was cut out and used as sample pieces A to E of the varnish coating layer according to Examples 1 to 5.
  • the cut-out central varnish coating layer portion is a portion of the central varnish coating layer 31a provided at the upper side (opening side) center of the front plate 13.
  • the width of the cut-out was 25 mm, and the height perpendicular to the axial direction was a height at which the varnish application part could be sufficiently secured, and in this example, 20 mm.
  • the cut varnish application pattern is solid.
  • the selection of the width 25 mm of the cut-out part was selected from the area where the varnish coating layer was present when cut. Specifically, it was selected from a region where the varnish coating layer 31a was continuously present over the entire measurement width. Finally, a double-sided tape was applied to the back surface of the sample piece (the back surface of the surface coated with SP varnish).
  • a plurality of sample pieces with a width of 25 mm are obtained from one packaging container along the axial direction, but the central part of the carton, which is a more important area for ease of use (1/2 of the total length of the carton). Evaluation is performed with a sample piece obtained from a range including a portion.
  • Example 2 the cutting blade portion of the packaging container is changed from Example 2. Therefore, Example 2, 4 and 5 are the same regarding the varnish application layer part.
  • a packaging container was prepared in the same manner as in Examples 1 to 3 except that FDPCA (manufactured by Toyo Ink Co., Ltd.) was used as the SP varnish and the UV irradiation level when the coating film was cured was increased.
  • the plate depth was 50 ⁇ m.
  • the central varnish coating layer portion was cut out to obtain a sample piece F of the varnish coating layer according to Comparative Example 1.
  • a packaging container was prepared in the same manner as in Examples 1 to 3 except that FDPCA (manufactured by Toyo Ink Co., Ltd.) was used as the SP varnish, and designated as Comparative Examples 2 to 4.
  • the plate depth was 40 ⁇ m, 50 ⁇ m, and 60 ⁇ m, respectively.
  • the central varnish coating layer portion was cut out and used as varnish coating layer sample pieces G to I according to Comparative Examples 2 to 4.
  • a wrap film (trade name NEW Kurewrap, manufactured by Kureha Co., Ltd.) was cut into a size of 25 mm wide and 100 mm long. At this time, the length direction was matched with the film drawing direction. A paper tape (25 mm in width and 15 mm in length) was attached as a gripping margin to one end side in the length direction. At this time, the paper tape was pasted with the width direction of the paper tape and the width direction of the wrap film piece matched.
  • the indoor environment was 23 ⁇ 5 ° C. and 40 ⁇ 20% RH.
  • T-type peel strength The iron plate is fixed to the base so that the normal of the surface to which the sample piece is attached faces vertically upward, and the paper tape side of the film piece of the measurement pressure-bonded product is located above the iron plate.
  • T-type peel test was conducted at a pulling speed of 300 mm / min. The test was performed several times, and the maximum value was taken as the measured value. The test was performed immediately after the film piece was attached and 3 days after the film piece was attached.
  • Sample preparation Sample 1 containing a polylactic acid resin as a main component and a resin sheet containing a polystyrene resin as an additive at a concentration in the range of 0.5 to 50% by mass in a V shape and having a thickness of about 250 ⁇ m (implementation) Cutting blades of Examples 1-3 and Comparative Examples 1-2) were formed.
  • Sample 2 (Example 4 and Comparative Examples 3 to 4), a cutting blade was formed in the same manner as Sample 1 except that a resin sheet with a reduced amount of polystyrene resin as an additive was used.
  • Sample 3 (Example 5) was formed with a cutting blade in the same manner as Sample 1, except that a resin sheet to which no polystyrene resin as an additive was added was used.
  • Samples 1 to 3 were subjected to the following treatments (1) to (3) to prepare sample pieces of Examples 1 to 5 and Comparative Examples 1 to 4.
  • a sample cut to a width of 7.5 mm ⁇ a length of 25 mm or more is attached to an iron plate with a double-sided tape so as to be parallel to the measurement direction.
  • the iron plate is sandwiched between the tensilon (lower side) and the paper tape side of the film piece with tensilon (upper side) so that the normal of the surface to which the sample piece is attached faces vertically upward.
  • a sample was set on a Tensilon universal material testing machine (RTG-1210) manufactured by Day Co., and shear strength was measured under a test environment of 23 ° C., 50% RH, and a test speed of 300 mm / min, and an average value was obtained. The measurement results are shown in Table 2.
  • the cutting blade of the packaging container used in the evaluation is a layer mainly composed of polylactic acid resin, and polystyrene resin is added at a concentration of 0.5 to 50% by mass as an additive component for roughening.
  • the layer to be included is a cutting blade used for at least the exposed surface layer when the blade material is bonded.
  • a cutting blade having a surface state in which the shear strength between the wrap film and the exposed surface of the cutting blade is 0.03 N is used.
  • the cutting blade in a surface state in which the amount of polystyrene resin as an additive component is reduced and the shear strength between the wrap film and the exposed surface of the cutting blade is 0.21 N Is used.
  • the packaging container of Example 5 uses a cutting blade having a shear strength of 1.02 N to which a polystyrene resin, which is an additive component for roughening, is not added.
  • Example 5 where the shear strength between the wrap film and the exposed surface of the cutting blade was as high as 1.02 N, the sample was rewound 26 times, and in Example 4 where the shear strength was 0.21 N, 3 times of rewind occurred. .
  • Examples 1 to 3 and Comparative Examples 1 and 2 having a low shear strength of 0.03N do not cause rewinding, and are comparative examples having the same shear strength as Example 4 in which the shear strength is 0.21N.
  • Example 4 For 3-4, no rewinding occurred. This is because in Comparative Examples 3 to 4, the T peel strength immediately after attaching the wrap film of the varnish coating layer was higher than that of Example 4, so that the wrap film adhered to the varnish coating layer and rewinding could be prevented. Conceivable.
  • the present invention can be suitably used as a packaging container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Cartons (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)

Abstract

L'objectif de l'invention est de fournir un contenant d'emballage de telle sorte que la facilité par laquelle un film d'emballage peut être prélevé à partir de celui-ci n'est pas susceptible de changer au cours du temps. L'invention concerne un récipient d'emballage (100) pourvu d'un corps de récipient (11) qui loge un rouleau d'emballage (1) à l'intérieur de celui-ci et a un côté supérieur ouvert et un corps de couvercle (21) relié à une carte latérale arrière (14) du corps de récipient (11), une couche de revêtement verni (31) étant disposée sur une plaque latérale avant (13) du corps de récipient (11), et la couche de revêtement de vernis (31) satisfaisant l'exigence 1. (Exigence 1) En fonction des résistances au pelage en T comme mesurées en utilisant un morceau échantillon à couche de revêtement verni de 25 mm de large et un film d'emballage selon JIS Z-0237 (2009) : Méthodes de test des feuilles et rubans auto-adhésifs (« Testing methods of pressure-sensitive adhesive tapes and sheets »), la résistance Ti au pelage en T mesurée immédiatement après l'adhérence du film d'emballage et la résistance T3d au pelage en T mesurée trois jours après l'adhérence du film d'emballage satisfait {(T3d­ - Ti)/Ti} × 100 ≤ 50.
PCT/JP2018/000343 2017-03-09 2018-01-10 Récipient d'emballage WO2018163592A1 (fr)

Priority Applications (3)

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CN201880004730.5A CN110352165B (zh) 2017-03-09 2018-01-10 包装容器
JP2019504351A JP6568669B2 (ja) 2017-03-09 2018-01-10 包装容器
EP18763458.9A EP3594148A4 (fr) 2017-03-09 2018-01-10 Récipient d'emballage

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JP2023034866A (ja) * 2021-08-31 2023-03-13 株式会社クレハ ラップフィルム巻回体、収納容器、ラップフィルム巻回体入り収納容器の製造方法、および、収納容器の輸送方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1035657A (ja) * 1996-07-30 1998-02-10 Kureha Chem Ind Co Ltd ラップフィルム収納カートン
JP2014005079A (ja) 2012-05-28 2014-01-16 Kureha Corp 包装容器
JP2016120538A (ja) * 2014-12-24 2016-07-07 株式会社クレハ 包装フィルム収納容器用切断刃、およびそれを有する収納容器

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Publication number Priority date Publication date Assignee Title
JP2008239251A (ja) * 2007-02-27 2008-10-09 Kureha Corp フラップ付きラップフィルム装置
CN103449233B (zh) * 2012-05-28 2016-01-20 株式会社吴羽 包装容器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1035657A (ja) * 1996-07-30 1998-02-10 Kureha Chem Ind Co Ltd ラップフィルム収納カートン
JP2014005079A (ja) 2012-05-28 2014-01-16 Kureha Corp 包装容器
JP2016120538A (ja) * 2014-12-24 2016-07-07 株式会社クレハ 包装フィルム収納容器用切断刃、およびそれを有する収納容器

Non-Patent Citations (1)

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Title
See also references of EP3594148A4

Also Published As

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CN110352165A (zh) 2019-10-18
TW201833016A (zh) 2018-09-16
EP3594148A1 (fr) 2020-01-15
TWI674233B (zh) 2019-10-11
EP3594148A4 (fr) 2020-01-15
JP6568669B2 (ja) 2019-08-28
CN110352165B (zh) 2020-06-12
JPWO2018163592A1 (ja) 2019-07-04

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