JP7253392B2 - Cosmetic box for packaging roll - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cosmetic box for a package roll in which a resin sheet for packaging is wound around a core.

In order to prevent the food from drying out or oxidizing, or to prevent the aroma of the food from transferring to other foods, a wrap roll with a thin wrap film for food packaging wound around the core is used. A wrap roll is generally housed in a dedicated storage box for use (see Patent Literatures 1 and 2).
Although not shown, the storage box includes a main box that rotatably accommodates the polyvinylidene chloride-based resin wrap roll, and a lid that is pivotally connected to the main box and opens and closes the opening of the main box. It is configured. The main box and the lid are each formed by processing Kent paper having a thickness of 0.2 mm or more and 1.3 mm or less and having a smooth surface.

The main box includes a bottom plate on which the wrap roll is rotatably mounted, a front plate connected to the front part of the bottom plate, a rear plate connected to the rear part of the bottom plate and facing the front plate, both sides of the bottom plate and a front plate. It is formed into an elongated box whose upper part is opened from both sides of the face plate and a pair of side plates closing the openings defined by both sides of the rear face plate.

On the other hand, the lid includes a lid upper plate connected to the upper part of the rear plate so as to be swingable, a lid front plate connected to the front part of the lid upper plate and overlapping the upper part of the front plate of the storage box, and the lid. It is composed of a substantially V-shaped cutting blade attached to the front plate to cut the wrap film of the wrap roll, and a pair of lid side plates connected to both sides of the lid front plate and overlapping the upper part of the side plate of the storage box. , opens and closes the upper opening of the main body box.

In the above configuration, in order to prevent the food from drying and oxidizing, first, the main box of the storage box is grasped to open the lid, and a thin transparent wrap film is pulled out from the wrap roll in the storage box by the required length. The food is covered and packaged with the wrap film pulled out. After the food is packaged in this manner, the lid of the storage box is completely closed, and the wrap film pulled out is cut by the cutting edge of the lid, thereby preventing drying and oxidation of the food.

WO2018/163592 JP-A-2005-247403

The conventional storage box is constructed as described above, and the main box and its front plate are simply formed by processing Kent paper, and since the surface is smooth, the wrap film pulled out by the cutting edge of the lid is cut. Then, the remaining short wrap film may slide back to the wrap roll side without sticking to the front plate of the main box.

When the remaining short wrap film is wound back to the wrap roll side, it is necessary to open the lid of the storage box and pull out the wrap film again from the wrap roll. However, since it is not easy to visually grasp the end portion of the transparent thin wrap film, there arises a problem that the pull-out operation is time-consuming and the operation cannot be speeded up. This problem is very serious in restaurants, hotels, Japanese inns, etc. where a large amount of wide wrap film is used and reliable food packaging is required in a short time, and an immediate solution is desired.

As a method for solving such a problem, there is a method of applying adhesive varnish to the front panel of the main body box to attach a wrap film to the front panel of the main body box to prevent unwinding. However, when this method is adopted, when the thin wrap film attached to the front plate of the main body box is pulled up and peeled off, the thin wrap film is easily torn.

The present invention has been made in view of the above, and prevents the polyvinyl chloride resin sheet from being rewound on the packaging roll, without damaging the polyvinyl chloride resin sheet stuck to the front plate of the cosmetic box. An object of the present invention is to provide a cosmetic box for a package roll that can be peeled off.

In the present invention, in order to solve the above problems, a packaging roll in which a transparent polyvinyl chloride resin sheet is wound around a core is housed in a cosmetic box, and the packaging roll is pulled out from the cosmetic box. A vinyl chloride resin sheet that can be cut by a cutting member,
The vanity case comprises a bottom plate on which the package roll can be mounted, a front plate connected to the front of the bottom plate and capable of contacting the polyvinyl chloride resin sheet pulled out from the package roll at the upper end, and a bottom plate. a back plate connected to the rear part of the body and capable of facing the front plate; a ceiling cover plate connected to the back plate and capable of facing the bottom plate; and a stacked body plate connected to the ceiling cover plate and capable of facing the front plate. and a side plate that can close the opening defined by the side of the bottom plate, the side of the front plate, and the side of the back plate, and a design is gravure printed or offset printed on the surface, The arithmetic mean roughness Ra of the front plate surface is 0.48 μm or more and 1.29 μm or less when measured by a non-contact method using a high-precision laser microscope , and the maximum height Rz of the front plate surface is When measured by a non-contact method using a high-precision laser microscope, it is 0.06 μm or more and 0.33 μm or less. 0.58 μm or more and 1.27 μm or less when measured by a contact method ;
In the packaging roll, the adhesive force between the polyvinyl chloride resin sheets wound around the core is 0.82 N or more and 1.60 N or less, and the dynamic friction between the polyvinyl chloride resin sheet and the upper end of the front plate of the cosmetic box. a coefficient of static friction between the polyvinyl chloride resin sheet and the upper end of the front plate of the cosmetic box of 0.256 or more and 0.319 or less;
The adhesive force between the wound polyvinyl chloride resin sheets was measured by forming the polyvinyl chloride resin sheet to a size of 25 cm 2 ^and pressing the polyvinyl chloride resin sheet with a compressive stress of 2.94 N for 60 seconds. Measured by conducting a test to measure the maximum load point when peeling at a speed of 100 mm / min,
The coefficient of dynamic friction and the coefficient of static friction between the polyvinyl chloride resin sheet and the upper end of the front panel of the decorative box are characterized by being measured using a surface property measuring instrument in accordance with JIS K 7125 standards. .

First flaps are connected to both sides of the front panel of the cosmetic box, and second flaps overlapping the first flaps are connected to both sides of the back panel of the cosmetic box. A substantially continuous small hole for adhesive is formed in at least one of the first and second flaps, and both sides of the bottom plate of the cosmetic box are formed in at least one of the first and second flaps The side plates to be glued can be connected respectively.

The layered body plate of the cosmetic case includes a body piece connected to the ceiling lid plate of the cosmetic case and overlapping the front plate of the cosmetic case, and a peeling piece connected to the body piece through a plurality of small holes that are substantially continuous with the body piece. A plurality of adhesive parts are formed on either the front plate of the decorative box or the peeling strips of the stacked body plate, and the peeling strip of the stacked body plate is one of the multiple adhesive parts. , a notch may be formed partially along the periphery of at least a portion of the bond.

Also, the cutting member is preferably attached to the front portion of the bottom plate of the cosmetic case.
Furthermore, it is preferable that the cutting member is made of a biodegradable resin and attached to the front part of the bottom plate of the decorative box.

Here, the polyvinyl chloride-based resin sheet in the scope of claims includes a resin film as well as a resin sheet made of polyvinyl chloride resin. Ra is a parameter indicating arithmetic mean roughness together with Sa. However, Sa is a parameter obtained by expanding Ra (arithmetic mean height of lines) to a surface in the international standard (ISO25178). Also, Spk is the average height of the protruding peaks in the international standard (ISO25178). Furthermore, the cosmetic box for the package roll can be changed in up, down, front, back, left and right depending on the mode of use, regardless of whether it is for home use or business use.

According to the present invention, since the surface roughness of the front plate of the decorative box is numerically limited, the surface of the front plate becomes rough and the polyvinyl chloride resin sheet sticks to the surface of the front plate of the decorative box. This sticking prevents the polyvinyl chloride resin sheet from being rewound on the package roll, simplifies the work of pulling out the polyvinyl chloride resin sheet, and speeds up the work.

According to the present invention, the arithmetic mean roughness Ra of the surface of the front plate of the decorative box is 0.48 μm or more and 1.29 μm or less, and the maximum height Rz of the front plate surface is 0.06 μm or more and 0.33 μm or less. , and the height Spk of the protruding peaks on the surface of the front plate is in the range of 0.58 μm or more and 1.27 μm or less, so that the polyvinyl chloride resin sheet is prevented from winding back into the package roll, and the front plate of the cosmetic box There is an effect that the polyvinyl chloride resin sheet stuck to the surface can be peeled off without damaging it. In addition, since the surface of the front panel of the cosmetic box is rough and the coefficient of friction is larger than before, the polyvinyl chloride resin sheet easily adheres to the surface of the front panel of the cosmetic box. can be pulled out smoothly.

According to the second aspect of the present invention, a hot-melt adhesive is applied as the adhesive when closing the opening defined by the side of the bottom plate, the side of the front plate, and the side of the back plate of the decorative box with the side plate. If so, the hot melt adhesive can be split and beat-applied along substantially continuous eyelets in the flap. By this bead application, even if the polyolefin hot-melt adhesive is difficult to adhere, the application range, application position, and application amount of the hot-melt adhesive can be stabilized, and the side plates can be reliably adhered.

According to the third aspect of the present invention, when the peeling piece is removed from the layered body plate of the decorative box, the body piece of the layered body plate can swing, and the ceiling cover plate covering the package roll can be opened. Become. When the top cover plate can be opened, the wrapped package stored in the decorative box can be freely handled, so that the polyvinyl chloride resin sheet of the wrapped package can be easily pulled out. In addition, if a notch of the peeling piece of the stacking body plate is used for the pressing operation, a plurality of adhesive portions of the peeling piece are partially lifted, so that the peeling piece can be gradually and easily removed from the surface of the front plate. Can be stripped.

According to the fourth aspect of the present invention , a cutting member is attached to the bottom plate of the cosmetic case, and the polyvinyl chloride resin sheet is cut by the cutting member. The facing area of the sheet is enlarged, and the polyvinyl chloride resin sheet can be pulled out for a long time and adhered to prevent unwinding. In addition, since the cutting member is attached to the bottom plate of the cosmetic case, even if the cosmetic case is strongly gripped, it is possible to prevent the ceiling cover plate from being bent and deformed. Therefore, it is possible to prevent the cutting of the polyvinyl chloride resin sheet from being hindered.

According to the fifth aspect of the invention , in addition to the above effects , the cutting member is made of a biodegradable resin, so that safety is improved, there is no significant change in sharpness, and sorting and disposal at the time of disposal are facilitated. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective explanatory view schematically showing an embodiment of a decorative box for a packaging roll according to the present invention; BRIEF DESCRIPTION OF THE DRAWINGS It is cross-sectional explanatory drawing which shows typically embodiment of the cosmetic box for packaging rolls which concerns on this invention. 1 is an exploded view schematically showing a cosmetic case in an embodiment of a cosmetic case for a packaging roll according to the present invention; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is perspective explanatory drawing which shows typically the packaging roll in embodiment of the cosmetic box for packaging rolls which concerns on this invention. FIG. 2 is a perspective explanatory view schematically showing the relationship between the inner flap of the decorative box and the side plate in the open state in the embodiment of the decorative box for packaging rolls according to the present invention. FIG. 3 is a perspective explanatory view schematically showing a state in which a polyvinyl chloride resin film pulled out from a cosmetic case in an embodiment of the cosmetic case for a wound package according to the present invention is cut by cutting teeth. FIG. 4 is another perspective explanatory view schematically showing a state in which a polyvinyl chloride-based resin film pulled out from the cosmetic case in the embodiment of the cosmetic case for the packaging roll according to the present invention is cut by the cutting teeth.

A preferred embodiment of the present invention will now be described with reference to the drawings. A long and narrow packaging box in which a polyvinyl chloride resin film 22 of a winding body 20 is cut by a cutting tooth 30, the decorative box 1 is made of coated cardboard, and a design is printed on the surface thereof by gravure printing or offset printing. The arithmetic mean roughness Ra of the surface of the front plate 3 of 1 is set to 0.48 μm or more and 1.29 μm or less, and at least the maximum height Rz of the surface of the front plate 3 is set to 0.06 μm or more and 0.33 μm or less, and at least the front plate 3 The height Spk of the protruding ridges on the surface is set to 0.58 μm or more and 1.27 μm or less.

As shown in FIGS. 1 to 3 and 5, the decorative box 1 includes a bottom plate 2 on which a roll of packaging 20 is rotatably mounted, and a roll of packaging 20 connected to the front end of the bottom plate 2. Front plate 3 in sliding contact with vinyl chloride resin sheet 22; A ceiling lid plate 7 is swingably connected to the upper end portion and faces the bottom plate 2 via the package roll 20, and a ceiling lid plate 7 is swingably connected and can face the surface of the front plate 3. and a pair of side plates 15 capable of closing the opening sides defined by both sides of the bottom plate 2, both sides of the front plate 3, and both sides of the back plate 6, In the unfinished state in which the front plate 3 is adhered to the surface of the front plate 3 in the manufacturing process, the front plate 3 is flatly folded and set in a box-making machine (not shown).

The bottom plate 2, the front plate 3, the back plate 6, the ceiling lid plate 7, and the stacking body plate 8 of the decorative box 1 are each formed in an elongated rectangular shape corresponding to the package roll 20, and the front end portion of the bottom plate 2 and the front plate are formed. 3, between the rear end of the bottom plate 2 and the rear plate 6, between the upper end of the rear plate 6 and the ceiling cover plate 7, and between the front end of the ceiling cover plate 7 and the stacking body plate 8 Folding lines for bending are formed between them to facilitate assembly of the cosmetic case 1 .

Rectangular or partially notched trapezoidal inner flaps 4 are connected to both sides of the short side of the front plate 3 via fold lines so as to be bendable. glued together. On the surface of the inner flap 4, a plurality of perforations 5 for facilitating adhesion of hot-melt adhesive are formed side by side at intervals. is decompressed.

Inner flaps 4A capable of covering the opening sides of the cosmetic case 1 are connected to both sides of the short side of the back plate 6 so as to be bendable via broken lines, and each inner flap 4A is rectangular or partially cut out. It is formed in a trapezoidal shape or the like, and each inner flap 4A is folded and adhered to the back surface of the inner flap 4 of the facing front plate 3 . On the surface of the inner flap 4A, a plurality of perforations 5A for facilitating adhesion of the hot-melt adhesive are formed side by side at intervals. is expanded.

The inner flaps 4 and 4A of the front plate 3 and the rear plate 6 may have the same size and length, but may be changed as necessary. For example, the inner flap 4 of the front plate 3 is formed short and the inner flap 4A of the rear plate 6 is formed long, or conversely, the inner flap 4 of the front plate 3 is formed long and the inner flap 4A of the rear plate 6 is formed. is formed short.

The ceiling lid plate 7 is formed to have the same size and length as the bottom plate 2 , and faces the inner surface of the bottom plate 2 to define a space for storing the package roll 20 . On both sides of the short side of the ceiling lid plate 7, if the side plate 15 is not connected to the bottom plate 2, the polyvinyl chloride resin film 22 of the package roll 20 can be pulled out without hindrance. The side plates 15 are connected to each other via broken lines so as to be bendable.

The stacking body plate 8 consists of a long and thin body piece 9 connected to the front end of the ceiling cover plate 7 and overlapping the surface of the front plate 3, and a long and thin peeling piece connected to the front end of the body piece 9 via perforations 10. 11, and a plurality of adhesive portions 12, which are adhered to the surface of the front plate 3 with an adhesive agent, are formed side by side at predetermined intervals in the longitudinal direction of the back surface of the peeling piece 11. A substantially circular or rectangular section is formed and a predetermined adhesive is applied.

Approximately triangular cutouts 13 are formed at both ends of the perforations 10 to facilitate separation of the body piece 9 and the peeling piece 11, if necessary. In at least the longitudinal direction of the peel piece 11, cutouts 14 are formed at predetermined intervals along the peripheral edges of at least some of the plurality of adhesive portions 12, respectively. A pressing operation using the notch 14 partially lifts the peeling piece 11 between the plurality of adhesive portions 12 and the like, and the peeling piece 11 is gradually and easily peeled off from the surface of the front plate 3 .

Such a layered trunk plate 8 is obtained by peeling off the peeling pieces 11 from the front plate 3 via a plurality of notches 13 and removing the peeling pieces 11 from the trunk piece 9 along the perforations 10, thereby forming the trunk. The piece 9 becomes swingable to allow the ceiling cover plate 7 to be opened. When the ceiling lid plate 7 becomes openable, the wrapped package 20 stored in the decorative box 1 can be freely handled, and the polyvinyl chloride resin film 22 of the wrapped package 20 is cut by a predetermined length. can be pulled out.

Each side plate 15 is formed in a rectangular shape corresponding to the side of the opening of the decorative box 1, and is bendably connected to the short side of the bottom plate 2 via a broken line. At the tip of each side plate 15, a tapered tongue flap 16 that overlaps the back side of the ceiling cover plate 7 is connected via a fold line so as to be bendable. Curved into glyphs.

The decorative box 1 having the above configuration is formed by punching coated cardboard, which is paperboard for paper containers, and includes a bottom plate 2, a front plate 3, inner flaps 4, a back plate 6, inner flaps 4A, a ceiling cover plate 7, All visible surfaces (outer surfaces) of the stacking body plate 8, each side plate 15, and each tongue flap 16 are printed with a predetermined design that enhances product value as required.

Paperboard for paper containers includes types such as coated paperboard, chipboard, kraft paperboard, metal paper, corrugated paperboard, etc. Coated paperboard is most suitable because it is excellent in printability and suitable for all paperboard materials. Coated cardboard is formed into white paperboard by laminating, for example, a back layer of waste paper, a middle layer of waste paper, and a surface layer of pulp (vegetable fiber). As the coated cardboard, for example, coated white board manufactured by Rengo Co., Ltd. or Osaka Paper Mfg. Co., Ltd. is used.

A predetermined design consisting of letters, symbols, patterns, colors, and a combination of these is printed on the surface of the cosmetic box 1. As a printing method for this predetermined design, there are various methods of printing such as reproduction of fine shading and decoration. If it is desired to reduce the manufacturing cost of the box 1, the gravure printing method is chosen. On the other hand, offset printing is selected when it is desired to appropriately print on corrugated coated cardboard to manufacture cosmetic boxes 1 of the same quality at low cost or to improve usability.

It is preferable that the surface roughness of the surface of the decorative box 1 is small when the adhesion of the polyvinyl chloride resin film 22 of the package roll 20 is emphasized. A large value is preferable when importance is attached to the properties and the releasability at the time of delamination. In view of these points, the surface roughness is determined by taking into account the workability when pulling out the polyvinyl chloride resin film 22 and the peelability when peeling it off, while considering the adhesion of the polyvinyl chloride resin film 22. be.

The two-dimensional arithmetic mean roughness Ra of the surface roughness of the cosmetic box 1 surface is 0.48 μm or more and 1.29 μm or less, which is larger than that of the conventional example, preferably 0.53 μm or more and 1.24 μm or less, more preferably 0.58 μm or more and 1.19 μm or less is preferable. In addition, the maximum height Rz indicating the surface roughness of the surface of the decorative box 1 is 0.06 μm or more and 0.33 μm or less, preferably 0.08 μm or more and 0.28 μm or less, more preferably 0.11 μm or more, which is smaller than that of the conventional example. 0.23 μm or less is optimal.

The three-dimensional arithmetic average roughness Sa of the surface of the cosmetic box 1 is 0.48 μm or more and 1.22 μm or less, preferably 0.53 μm or more and 1.17 μm or less, more preferably 0.58 μm or more and 1.12 μm or less. good. In addition, the protruding peak height Spk, which indicates the surface roughness of the surface of the decorative box 1, is 0.58 μm or more and 1.27 μm or less, preferably 0.63 μm or more and 1.22 μm or less, more preferably 0.68 μm or more. 1.17 μm or less is good.

As shown in FIGS. 2 and 4, the package roll 20 has a core 21 shorter than the bottom plate 2 of the decorative box 1, and a transparent belt-shaped polyvinyl chloride resin film is applied to the outer peripheral surface of the core 21. 22 is wound about 20m to 50m, or about 50m to 110m, and is housed in the cosmetic case 1 so as to be freely rotatable. The winding core 21 is formed in a cylindrical shape from predetermined paper. In addition, the polyvinyl chloride resin film 22 is formed into a flexible thin film by, for example, a polyvinyl chloride (PVC) resin excellent in heat resistance, water resistance, adhesiveness, etc., a softener, a stabilizer, etc. After being pulled out by a predetermined length across the free upper end of the front plate 3 of the decorative box 1, it is cut by the cutting teeth 30 of the decorative box 1 and used for food packaging.

The adhesive strength between the polyvinyl chloride resin films 22 wound on the packaging roll 20 is 0.00, although it depends on the period of time the packaging roll 20 on which the polyvinyl chloride resin film 22 is wound is left unattended. 82 N or more and 1.60 N or less, preferably 0.87 N or more and 1.55 N or less, more preferably 0.92 N or more and 1.50 N or less.

As shown in FIGS. 5 to 7, the cutting teeth 30 are made of, for example, metal or biodegradable resin and are formed into elongated rectangular thin plates. In addition, each sawtooth 31 is formed in a small triangular shape, so that the polyvinyl chloride resin film 22 pulled out from the package roll 20 can be quickly cut. It is crimped to the front surface and adhered to the front surface of the bottom plate 2 in the case of biodegradable resin.

When the material of the cutting tooth 30 is a biodegradable resin, examples of the biodegradable resin include biopolyester, bacterial cellulose, and fatty acid polyester. Specific materials for the cutting teeth 30 are, for example, Ecolouge (registered trademark) manufactured by Mitsubishi Chemical Corporation, Terramac [product name] manufactured by Unitika Ltd., Bioclear [product name] manufactured by Asahi Kasei Corporation, and the like. be done.

One side of the cutting teeth 30 is located near the connecting portion between the front end of the surface of the bottom plate 2 and the front plate 3, in other words, near the fold line of the boundary, and the plurality of saw teeth 31 are located slightly from the front end of the surface of the bottom plate 2. The slightly protruding saw teeth 31 function to cut the polyvinyl chloride resin film 22 pulled out from the package roll 20 . Since the cutting teeth 30 are joined to the front surface of the bottom plate 2 instead of the stacking body plate 8, the polyvinyl chloride resin film 22 is pulled out from the package roll 20 longer than in the conventional example when cutting. , face the area extending from the top to the bottom of the surface of the front plate 3 .

In the above configuration, when the decorative box 1 for the packaging roll 20 is assembled, manufactured, and shipped, the unfinished decorative box 1 that is flatly folded and set in the box-making machine is first raised to form a hollow corner. The already manufactured package roll 20 is inserted horizontally from one side of the cylindrically-shaped and open two sides.

The decorative box 1 into which the package roll 20 is inserted is thinly coated with a polyolefin-based hot-melt adhesive or the like on the surfaces of the pair of inner flaps 4 and 4A on both sides of the opening. are successively folded (see FIG. 5), the side plate 15 is folded over the surface of the inner flap 4 that is folded later, and the tongue flap 16 is placed between the pair of inner flaps 4 and 4A and the ceiling lid plate 7. The inner flap 4 and the side plate 15 are adhered to each other so that the open side portions are closed.

At this time, if the lengths of the pair of inner flaps 4 and 4A on each side of the decorative box 1 are different, the long inner flap 4A is folded first, and the short inner flap 4 is attached to the surface of the long inner flap 4A. It's good to fold it up and stack it. By doing so, the posture of the pair of inner flaps 4 and 4A can be stabilized. Can be glued.

When applying the hot-melt adhesive, the hot-melt adhesive can be divided into a plurality of portions along the plurality of perforations 5 of the inner flaps 4 and 4A and beat-applied. In this way, even if the polyolefin hot-melt adhesive is difficult to adhere, the application range, application position, and application amount of the hot-melt adhesive can be stabilized, and the adhesion can be ensured.

When both sides of the decorative box 1 that are open are closed, ultraviolet light is irradiated from the ultraviolet light irradiation device to both sides of the decorative box 1 and the vicinity thereof, and the vicinity of each side of the decorative box 1, specifically , the folded and adhered side plate 15 and its vicinity are inspected by an inspection device. As a result of the inspection, if there is no problem in appearance on both sides of the decorative box 1, the decorative box 1 can be regarded as a non-defective product, and shipped together with other non-defective decorative boxes 1 in cardboard boxes.

Next, when purchasing the makeup for the package roll 20 and making it ready for use, if the peeling piece 11 is torn off along the perforations 10 from the layered body plate 8 of the cosmetic box 1 and removed, The trunk piece 9 of the stacked trunk plate 8 becomes swingable, and the ceiling cover plate 7 that covers and protects the package roll 20 can be opened. When the ceiling cover plate 7 can be opened, the wrapped package 20 stored in the decorative box 1 can be freely handled, so the polyvinyl chloride resin film 22 of the wrapped package 20 can be used. state can be

Next, when pulling out the polyvinyl chloride resin film 22 from the decorative box 1 to prevent drying and oxidation of the food, first, the central portion of the decorative box 1 is gripped and the cutting teeth 30 of the bottom plate 2 are raised. (see FIGS. 6 and 7), open the ceiling cover plate 7 of the cosmetic box 1, pull out the transparent thin polyvinyl chloride resin film 22 from the packaging roll 20 by the required length, After the ceiling cover plate 7 is closed, the food is covered and packaged with a thin polyvinyl chloride resin film 22 pulled out while tilting the decorative box 1 outward.

At this time, the dynamic friction coefficient when the polyvinyl chloride resin film 22 of the packaging roll 20 is pulled out while being in sliding contact with the upper end portion of the front plate 3 of the decorative box 1 is 0.248 or more and 0.667 or less, preferably 0.253 or more and 0.662 or less, more preferably 0.258 or more and 0.657 or less are optimum. This is because the polyvinyl chloride resin film 22 can be easily pulled out from the package roll 20 if the dynamic friction coefficient is 0.248 or more and 0.667 or less.

The coefficient of static friction when the polyvinyl chloride resin film 22 of the wound package 20 is pulled out while being in sliding contact with the upper end of the front plate 3 of the decorative box 1 is 0.256 or more and 0.319 or less, preferably 0. 0.261 or more and 0.314 or less, more preferably 0.266 or more and 0.309 or less. This is also because the polyvinyl chloride resin film 22 can be pulled out smoothly from the package roll 20 if the coefficient of static friction is 0.256 or more and 0.319 or less.

After the food is covered and packaged with the polyvinyl chloride resin film 22, the food can be cut by pressing the polyvinyl chloride resin film 22 against the cutting teeth 30 of the bottom plate 2 to prevent drying and oxidation of the food. At this time, when the polyvinyl chloride resin film 22 is cut by the cutting teeth 30 of the decorative box 1, the remaining long polyvinyl chloride resin film 22 is cut from the surface of the front plate 3 of the decorative box 1, unlike the conventional example. , and is not rewound to the side of the package roll 20 due to the deterioration of slipperiness.

According to the above configuration, the surface roughness of the front plate 3 is adjusted based on the combination of the decorative box 1 made of coated cardboard and the polyvinyl chloride resin film 22 and the characteristics of gravure printing or offset printing on the surface of the decorative box 1. Since the numerical values are limited, the polyvinyl chloride resin film 22 sticks to the surface of the front plate 3 of the decorative box 1 and adheres to it. This close contact prevents the polyvinyl chloride resin film 22 from being rewound on the packaging roll 20, and saves the trouble of pulling out the polyvinyl chloride resin film 22. - 特許庁Therefore, it is possible to easily grasp the end of the transparent thin wrap film, simplify the operation of pulling out the polyvinyl chloride resin film 22, and speed up the operation.

Also, in restaurants, hotels, inns, etc., where a large amount of wide wrap film is used and reliable food packaging is required in a short time, speeding up of the work of pulling out the polyvinyl chloride resin film 22 can be greatly expected. In addition, since it is not necessary to apply adhesive varnish to the front plate 3 of the cosmetic box 1, when peeling off the thin polyvinyl chloride resin film 22 stuck to the front plate 3 of the cosmetic box 1, the thin polyvinyl chloride It is possible to eliminate the possibility that the system resin film 22 is easily torn.

In addition, since the cutting teeth 30 are joined to the bottom plate 2 instead of bonding the cutting teeth 30 to the stacking body plate 8 and the polyvinyl chloride resin film 22 is cut by the cutting teeth 30, An increase in the facing area between the face plate 3 and the polyvinyl chloride resin film 22 can be expected. Therefore, the polyvinyl chloride resin film 22 can be pulled out longer than before and brought into close contact, and the rewinding of the polyvinyl chloride resin film 22 can be effectively prevented.

Further, since the cutting teeth 30 are joined to the bottom plate 2 of the cosmetic case 1, even if the cosmetic case 1 is strongly gripped, it is possible to prevent the top cover plate 7 from bending and deforming. Therefore, it is possible to effectively prevent the cutting of the polyvinyl chloride resin film 22 from being hindered. Also, if the cutting teeth 30 are made of biodegradable resin instead of metal, the safety is improved, there is no significant change in sharpness, and sorting and disposal at the time of disposal are facilitated. Furthermore, after the design is gravure printed or offset printed on the surface of the cosmetic box 1, there is no need to apply adhesive varnish to at least the surface of the front plate 3 of the cosmetic box 1, so the cost of the cosmetic box 1 is reduced. , and can contribute to rapid production.

In the above embodiment, the arithmetic mean roughness Ra of the entire surface of the cosmetic case 1 is 0.48 μm or more and 1.29 μm or less, the maximum height Rz is 0.06 μm or more and 0.33 μm or less, and the protruding peak height Spk is 0.58 μm or more and 1.27 μm or less, but the arithmetic average roughness Ra of only the surface of the front plate 3 of the cosmetic case 1 is 0.48 μm or more and 1.29 μm or less, and the maximum height Rz is 0.06 μm or more and 0.33 μm or less. , and the protruding peak height Spk may be 0.58 μm or more and 1.27 μm or less.

Further, the inner flaps 4 and 4A of the decorative box 1 in the above-described embodiment may be formed with protruding unwinding prevention portions that are fitted to the open end portions of the core 21 of the package roll 20 . In addition, a plurality of adhesive portions 12 may be formed side by side at predetermined intervals in the longitudinal direction of the back surface of the peel piece 11, but a plurality of adhesive portions 12 may be formed on the surface of the front plate 3 at predetermined intervals. Also good. In addition, notches 14 may be formed at predetermined intervals along at least the longitudinal direction of the surface of the peel piece 11 so as to partially follow the periphery of all the adhesive portions 12 . Further, the cutting teeth 30 are mainly elongated rectangles, but can be formed into thin plates such as elongated substantially V-shaped ones, if necessary.

EXAMPLES Examples of the decorative box for packaging rolls according to the present invention will be described below together with comparative examples.
[Example 1]
First, a decorative box for Polymer Wrap (registered trademark) [manufactured by Shin-Etsu Polymer Co., Ltd.: product name] shown in FIG. The surface roughness of the front plate surface, specifically, the arithmetic mean roughness Ra, the maximum height Rz, the arithmetic mean roughness Sa, and the height of the protruding peak Spk were measured, and the measurement results are shown in Table 1. .

The coated cardboard was CRC 500 g/m ² [manufactured by Rengo Co., Ltd.: product name], and the punching dimensions were 235 mm×439 mm. The surface roughness of the front plate surface was measured by a non-contact method using a high-precision laser microscope [manufactured by Olympus Corporation: product name LEXT OLS-4000]. This laser microscope is a 3D measurement laser microscope that irradiates a surface laser beam on the front plate of a cosmetic box, which is an object to be measured, and captures the brightness of the reflected light as height information.

After measuring the surface roughness of the front plate of the cosmetic box, measure the dynamic friction coefficient and the static friction coefficient when the polyvinyl chloride resin film of the packaging roll is pulled out while sliding on the upper end of the front plate of the cosmetic box. and the measurement results are shown in Table 1.

The package roll was a polymer wrap (registered trademark) [manufactured by Shin-Etsu Polymer Co., Ltd.: product name] in which a 45 m transparent belt-shaped polyvinyl chloride resin film was wound around the outer peripheral surface of a core. The adhesive force between the polyvinyl chloride resin films wound together in this packaging roll was measured to be 1.50N. Adhesion strength was measured by forming a polyvinyl chloride resin film with a size of 25 cm ² , pressing this polyvinyl chloride resin film with a compressive stress of 300 g (2.94 N) for 60 seconds, and peeling at a speed of 100 mm / min. It was measured by conducting a test to measure the maximum load point when

As a specific method for measuring the adhesion force, first, a pair of cylindrical bodies were prepared, and a polyvinyl chloride resin film was adhered to the bottom surface of each cylindrical body so as not to loosen and was firmly fixed with a band. Here, the cylinder has a weight of 300 g and a bottom area of 25 cm ² . For the measurement, we decided to use the same polyvinyl chloride resin film as for the measurement of the dynamic friction coefficient.

After firmly fixing the polyvinyl chloride resin film, place the other cylinder on top of one of the cylinders so that the polyvinyl chloride resin film surfaces overlap each other, and load the lower cylinder with its own weight of 300 g. It was left to stand for 1 minute, and the upper cylindrical body was pulled up at a speed of 100 mm/min to measure the force required to separate the polyvinyl chloride resin films. The temperature of the measurement environment during this measurement was 25°C.

When measuring the coefficient of friction of a polyvinyl chloride resin film, a surface property measuring machine [manufactured by Sintokagaku Co., Ltd.: product name: Tribogear TYPE14] is used, and the poly A dynamic friction coefficient and a static friction coefficient were measured when the vinyl chloride resin film was slid. At the time of this measurement, when the 30 cm wide polyvinyl chloride resin film is pulled out from the package roll, the area where the upper end of the cosmetic box and the polyvinyl chloride resin film slide is 30 cm × 0.03 cm ≈ 1 cm ² . Also, the initial pull-out force of the polyvinyl chloride resin film is about 200 g.

As a specific method for measuring the coefficient of friction, first, the front plate of a decorative box cut into a size of 4 cm × 10 cm was set on the moving table of the surface property measuring machine, and the surface on which the design was gravure printed was placed upward. , a thinly cut polyvinyl chloride resin film of 1 cm×4 cm was set on a separate indenter of the surface property measuring machine. The area measured by the indenter is 1 cm×1 cm square.

After setting the polyvinyl chloride resin film on the indenter in this way, the indenter is mounted on the surface property measuring machine, the polyvinyl chloride resin film of the indenter is brought into contact with the front plate on the moving table, and 200 g is placed on the weight tray of the surface property measuring machine. weight was put thereon and left still for 10 seconds, and then the moving table was linearly moved horizontally by 70 mm at 100 mm/min to measure the dynamic friction coefficient and the static friction coefficient.

[Example 2]
First, a decorative box for a basic wrap [manufactured by Suzuka Mirai Co., Ltd.: product name] shown in FIG. The surface roughness of the surface, specifically, the arithmetic mean roughness Ra, the maximum height Rz, the arithmetic mean roughness Sa, and the peak height Spk were measured, and the measurement results are shown in Table 1.

The coated cardboard was CRC 500 g/m ² [manufactured by Rengo Co., Ltd.: product name], and the punching dimensions were 235 mm×439 mm. The surface roughness of the front plate surface was measured by a non-contact method using the same laser microscope [Olympus Corporation: product name LEXT OLS-4000] as in Example 1.

After measuring the surface roughness of the front plate of the cosmetic box, the dynamic friction coefficient and the static friction coefficient were measured in the same manner as in Example 1 when the polyvinyl chloride resin film was pulled out while being in sliding contact with the upper end of the front plate of the cosmetic box. and the measurement results are shown in Table 1.
The package wound body was a basic wrap [manufactured by Suzuka Mirai Co., Ltd.: product name] in which a transparent band-shaped polyvinyl chloride resin film was wound 110 m around the outer peripheral surface of the core. The adhesive force between the polyvinyl chloride resin films wound together in this packaging roll was measured to be 0.92N.

[Comparative Example 1]
First, the cosmetic box was used as a cosmetic box for Riken Wrap [manufactured by Riken Fabro Co., Ltd.: product name] in which the design was offset printed on coated cardboard, and the surface roughness of the front plate surface of this cosmetic box, specifically the arithmetic mean The roughness Ra, the maximum height Rz, the arithmetic mean roughness Sa, and the peak height Spk were measured, and the measurement results are shown in Table 1. The surface roughness of the front plate surface was measured by a non-contact method using the same laser microscope as in Example 1 (manufactured by Olympus Corporation: product name LEXT OLS-4000).

After measuring the surface roughness of the front plate of the cosmetic box, the dynamic friction coefficient and the static friction coefficient were measured in the same manner as in Example 1 when the polyvinyl chloride resin film was pulled out while being in sliding contact with the upper end of the front plate of the cosmetic box. and the measurement results are shown in Table 1.
The package roll was a Riken wrap [manufactured by Riken Fabro Co., Ltd.: product name] in which a transparent band-shaped polyvinyl chloride resin film was wound 100 m around the outer peripheral surface of a core. The adhesive strength between the polyvinyl chloride resin films wound together in this packaging roll was measured to be 1.10N.

[Comparative Example 2]
First, the decorative box is a decorative box for Hitachi Wrap [manufactured by Hitachi Chemical Co., Ltd.: product name] in which the design is offset printed on coated cardboard, and the surface roughness of the front plate surface of this decorative box, specifically The arithmetic mean roughness Ra, the maximum height Rz, the arithmetic mean roughness Sa, and the peak height Spk were measured, and the results are shown in Table 1. The surface roughness of the front plate surface was measured by a non-contact method using the same laser microscope as in Example 1 (manufactured by Olympus Corporation: product name LEXT OLS-4000).

After measuring the surface roughness of the front plate of the cosmetic box, the dynamic friction coefficient and the static friction coefficient were measured in the same manner as in Example 1 when the polyvinyl chloride resin film was pulled out while being in sliding contact with the upper end of the front plate of the cosmetic box. and the measurement results are shown in Table 1.
The wrapping roll was Hitachi Wrap (manufactured by Hitachi Chemical Co., Ltd.: product name), in which a transparent belt-shaped polyvinyl chloride resin film was wound 100 m around the outer peripheral surface of the core. The adhesive strength between the polyvinyl chloride resin films wound together in this packaging roll was measured and found to be 0.64N.

[Comparative Example 3]
First, the cosmetic box was used as a cosmetic box for Okamoto Trap [manufactured by Okamoto Co., Ltd.: product name] in which the design was offset printed on coated cardboard, and the surface roughness of the front plate surface of this cosmetic box, specifically arithmetic The average roughness Ra, the maximum height Rz, the arithmetic mean roughness Sa, and the peak height Spk were measured, and the measurement results are shown in Table 1. The surface roughness of the front plate surface was measured by a non-contact method using the same laser microscope as in Example 1 (manufactured by Olympus Corporation: product name LEXT OLS-4000).

After measuring the surface roughness of the front plate of the cosmetic box, the dynamic friction coefficient and the static friction coefficient were measured in the same manner as in Example 1 when the polyvinyl chloride resin film was pulled out while being in sliding contact with the upper end of the front plate of the cosmetic box. and the measurement results are shown in Table 1.
The package roll was Okamoto Trap (manufactured by Okamoto Co., Ltd.: product name), in which a transparent belt-shaped polyvinyl chloride resin film was wound 100 m around the outer peripheral surface of the core. The adhesive strength between the polyvinyl chloride resin films wound together in this packaging roll was measured to be 0.84N.

〔evaluation〕
In each example, the polyvinyl chloride resin film pulled out for a long time adhered to the surface of the front panel of the decorative box due to static electricity. This close contact prevented the polyvinyl chloride resin film from being rewound on the packaging roll, and made it possible to easily pull out a new polyvinyl chloride resin film from the decorative box.
On the other hand, in the case of each comparative example, since at least the arithmetic mean roughness Ra and the maximum height Rz of the surface roughness of the decorative box are outside the scope of the present invention, the polyvinyl chloride resin film is not formed on the surface of the front plate of the decorative box. It did not adhere and sometimes rolled back.

INDUSTRIAL APPLICABILITY The decorative box for packaging rolls according to the present invention is used in the field of manufacturing foodstuffs, household goods, and the like.

1 cosmetic box 2 bottom plate 3 front plate 4 inner flap (first flap)
4A inner flap (second flap)
5 Perforations (small holes)
5A Perforation (eyelet)
6 Back plate 7 Ceiling cover plate 8 Layered body plate 9 Body piece 10 Perforation (small hole)
11 peel piece 12 adhesion part 14 notch 15 side plate 20 packaging roll 21 core 22 polyvinyl chloride resin film (polyvinyl chloride resin sheet)
30 cutting tooth (cutting member)

Claims (5)

A packaging roll in which a transparent polyvinyl chloride resin sheet is wound around a core is stored in a cosmetic box, and the polyvinyl chloride resin sheet of the packaging roll pulled out from the cosmetic box can be cut by a cutting member. A cosmetic box for a packaging roll,
The vanity case comprises a bottom plate on which the package roll can be mounted, a front plate connected to the front of the bottom plate and capable of contacting the polyvinyl chloride resin sheet pulled out from the package roll at the upper end, and a bottom plate. a back plate connected to the rear part of the body and capable of facing the front plate; a ceiling cover plate connected to the back plate and capable of facing the bottom plate; and a stacked body plate connected to the ceiling cover plate and capable of facing the front plate. and a side plate that can close the opening defined by the side of the bottom plate, the side of the front plate, and the side of the back plate, and a design is gravure printed or offset printed on the surface, The arithmetic mean roughness Ra of the front plate surface is 0.48 μm or more and 1.29 μm or less when measured by a non-contact method using a high-precision laser microscope , and the maximum height Rz of the front plate surface is When measured by a non-contact method using a high-precision laser microscope, it is 0.06 μm or more and 0.33 μm or less. 0.58 μm or more and 1.27 μm or less when measured by a contact method ;
In the packaging roll, the adhesive force between the polyvinyl chloride resin sheets wound around the core is 0.82 N or more and 1.60 N or less, and the dynamic friction between the polyvinyl chloride resin sheet and the upper end of the front plate of the cosmetic box. a coefficient of static friction between the polyvinyl chloride resin sheet and the upper end of the front plate of the cosmetic box of 0.256 or more and 0.319 or less;
The adhesive force between the wound polyvinyl chloride resin sheets was measured by forming the polyvinyl chloride resin sheet to a size of 25 cm 2 ^and pressing the polyvinyl chloride resin sheet with a compressive stress of 2.94 N for 60 seconds. Measured by conducting a test to measure the maximum load point when peeling at a speed of 100 mm / min,
The coefficient of dynamic friction and the coefficient of static friction between the polyvinyl chloride resin sheet and the upper end of the front plate of the decorative box are measured using a surface property measuring instrument in accordance with JIS K 7125 standards. Cosmetic box for packaging rolls. First flaps are connected to both sides of the front panel of the cosmetic box, and second flaps overlapping the first flaps are connected to both sides of the back panel of the cosmetic box. At least one of the first and second flaps has a substantially continuous small hole for adhesive, and both sides of the bottom plate of the cosmetic box are glued to at least one of the first and second flaps. 2. The cosmetic box for a package roll according to claim 1, wherein the side plates are connected to each other. The layered body plate of the cosmetic case is divided into a body piece connected to the ceiling lid plate of the cosmetic case and overlapping the front plate of the cosmetic case, and a peeling piece connected to the body piece through a plurality of substantially continuous small holes. A plurality of adhesive portions are formed on either the front plate of the decorative box or the peeling strips of the stacked body plate, and the peeling strip of the stacked body plate has at least one of the plurality of adhesive portions 3. The cosmetic box for a package roll according to claim 1, wherein a notch is formed along the peripheral edge of a part of the adhesive portion. 4. A cosmetic box for a package roll according to claim 1, 2 or 3, wherein the cutting member is attached to the front portion of the bottom plate of the cosmetic box. 5. The cosmetic box for a wound package according to any one of claims 1 to 4, wherein the cutting member is made of a biodegradable resin and attached to the front portion of the bottom plate of the cosmetic box.

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