Stationery package body

Abstract

To provide a stationery package body from which a stationery article such as a writing instrument can be taken out with one hand.SOLUTION: The stationery package body is provided with a perforated line on a surface of the package body, and slits are formed on edges of the perforated line at the edge of the package body.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a stationery package capable of housing writing implements and the like. [Background technology]

[0002] In convenience stores and stationery shops, it is common to display and sell stationery such as writing instruments and replacement ink cartridges (called refills) for replacing the ink contained in writing instruments in plastic hanging bags called OPP (Oriented Polypropylene) bags, hanging them from bar hooks for hanging products.

[0003] However, in recent years, attention has been focused on the problem of microplastics leaking into the ocean, and there is growing momentum for tackling global environmental issues, such as by refraining from the use of disposable plastics. In consideration of environmental issues, as shown in Patent Documents 1 and 2, packaging materials using paper base materials that achieve a plastic-free society have been disclosed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2022-170521 A [Patent Document 2] International Publication No. 2023 / 145687 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the bags of Patent Documents 1 and 2, when removing the contents of the package, it is difficult to find the opening and the outer periphery is heat sealed, making it difficult to remove the contents easily. Therefore, the object of the present invention is to provide a stationery packaging bag that can be easily opened. [Means for solving the problem]

[0006] The present invention is a stationery packaging body capable of storing stationery such as writing implements, characterized in that a cutting line is provided on the surface of the packaging body and a notch is formed at the end of the cutting line at the end of the packaging body.

[0007] It is also preferable that, in a plan view of the package, the cut portion has a mountain shape with one side being an extension of the cut line, and that the intersection angle A between the one side and the other end is 90°. Effect of the Invention

[0008] According to the aspects of the present invention, since it is easy to open the package from the slit via the tear line, it is possible to easily remove the contents with one hand. Also, by forming a slit at the end of the tear line at the end of the package, even people with visual impairments can easily recognize the opening. [Brief description of the drawings]

[0009] [Figure 1] 1 illustrates a stationery package according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing stationery contained in the packaging of FIG. 1. [Diagram 3] FIG. 3 is a cross-sectional view showing stationery contained in the package of FIG. 2. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Throughout all the drawings, corresponding components are given the same reference numerals. In addition, in the specification and drawings of the present application, elements that can be similarly described may be given the same reference numerals to avoid redundant description.

[0011] FIG. 1 shows a stationery package according to an embodiment of the present invention, where FIG. 1(a) is a left side view, FIG. 1(b) is a plan view, FIG. 1(c) is a front view, FIG. 1(d) is a bottom view, FIG. 1(e) is a right side view, and FIG. 1(f) is a rear view.

[0012] In Fig. 1, the stationery package 1 in this embodiment is a package capable of housing refills (replacement cores) housed in the barrel of a writing implement, which is a type of stationery, and is composed of a rectangular (rectangular) sheet material 11 on the front side and a similarly rectangular sheet material 12 on the back side. These sheet materials (11, 12) are of the same shape, and are formed so that their long sides (longitudinal direction) are longer than the length of the writing implement in the longitudinal direction, and their short sides (lateral direction) are longer than the length of the writing implement in the lateral direction. The sheet materials 11 and 12 are formed so that they provide a space portion 13 for housing stationery inside, while the outer peripheries of the ends are tightly attached by a crimping portion 14, so that the housed stationery does not fall out.

[0013] Sheet material 11 and sheet material 12 are made of OPP (Oriented Polypropylene) material, but when environmental issues are taken into consideration, it is preferable to use paper materials such as fine paper, medium quality paper, one-sided glossy paper, kraft paper, one-sided glossy kraft paper, bleached kraft paper, paperboard, white paperboard, liner, lightly coated paper, coated paper, art paper, cast coated paper, parchment paper, vulcanized fiber, and glassine paper.

[0014] Furthermore, when the pressure-bonding portion 13 is made of an OPP (Oriented Polypropylene) material, it is bonded by welding. However, when a paper base material is used, an adhesive coating layer may be provided on the material so that it can be melt-bonded by heat sealing.

[0015] An insertion hole 15 is formed in the upper crimped portion 14 of the stationery package 1 so that a display hook provided in a storefront or the like can be inserted therethrough.

[0016] A tear line 16 is formed at the bottom of the stationery package 1 so as to be connected to the space 14, and slits 17 are formed at both ends of the tear line 16. The tear line 16 is preferably formed with a length ratio of 3:1 between the slit and the remaining portion without the slit, for ease of opening by hand and sealing of the item. The tear line 16 is preferably formed at an angle of 45° to the long and short sides of the stationery package 1. The slit 17 is a mountain shape with one side being an extension of the tear line 16, and the intersection angle A between the one side and the other end is a right angle. The slit 17 is formed at the long and short sides of the stationery package 1. The pulling portion 18 is a region of the crimped portion 14 surrounded by the slit 17, and functions as an opening portion. The slits 17 formed at two locations are preferably arranged equidistant from the corners 19 of the stationery package 1.

[0017] The insertion holes 15, the cut lines 16, and the cut portions 17 may be formed before the sheet materials 11 and 12 are bonded to each other, or may be formed by using a cutting machine or the like after the sheet materials are bonded to each other.

[0018] Figure 2 is a diagram showing a state in which a writing instrument refill, which is a stationery item, is contained in the stationery package of Figure 1. Figure 2(a) is a left side view, Figure 2(b) is a cross-sectional view, Figure 2(c) is a plan view, Figure 2(d) is a front view, Figure 2(e) is a bottom view, Figure 2(f) is a right side view, and Figure 2(g) is a rear view.

[0019] The writing instrument refill 30 is accommodated in the space 13 of the stationery package 1. The stationery package 1 has a bulging shape at the center because the sheet material 11 and the sheet material 12 are separated by accommodating the writing instrument refill 30. Incidentally, accommodating the writing instrument refill 30 is preferable because the airtightness of the stationery package 1 is improved by sandwiching the writing instrument refill 30 during the process of adhering the sheet material 11 and the sheet material 12 together.

[0020] When removing the writing implement refill 30 from the stationery package 1, pulling the pull portion 18 in a direction perpendicular to the direction of the tear line 16 separates the long side and short side of the stationery package 1 and the area surrounded by the tear line 16 and the slit 17, opening the space 13 and allowing the writing implement refill 30 to be removed. The formation of the tear line 16 and the slit 17 allows easy opening even with one hand.

[0021] Fig. 3 is a cross-sectional view of a writing instrument refill 30 contained in the package of Fig. 2. As shown in Fig. 3, the writing instrument refill 30 includes an ink containing pipe 31 that contains ink, a writing side pipe 33 that includes a writing part 32, and a joint 35 for connecting the ink containing pipe 31 and the writing side pipe 33.

[0022] The ink containing pipe 31 is made of a metal and is a hollow tubular body, and is filled with a predetermined amount of ink 34. A tail plug 37 is detachably attached to the rear end of the ink containing pipe 31 so as to correspond to the writing instrument to be contained therein. The writing side pipe 33 is made of a tubular body having a smaller diameter than the ink containing pipe 31, and has a writing part 32 at its tip. When the writing part 32 is a ballpoint pen, the writing part 32 has a writing ball at its tip. Ink is supplied from the ink containing pipe 31 through a joint 35 into the writing side pipe 33. The ink 34 in the writing side pipe 33 adheres to the writing ball, and the ink adhered to the writing ball is transferred to the paper surface by rotating the writing ball. The ink containing pipe 31 and the writing side pipe 33 are metal cylinders that do not allow external light to pass inside, so that deterioration of the ink due to ultraviolet rays can be avoided, and moisture in the ink can be prevented from evaporating during long-term storage.

[0023] The ink 34 is preferably a thermochromic ink that contains at least a microcapsule pigment encapsulating a reversible thermochromic composition consisting of an electron donating color-forming organic compound, an electron accepting compound, and a reaction medium that determines the temperature at which the color-forming reaction between the two occurs, a glittering pigment, water, and a thickener. The thermochromic ink is an ink that maintains a predetermined color (first color) at room temperature (e.g., 20°C), changes to another color (second color) when heated to a predetermined temperature (e.g., 80°C), and then returns to the original color (first color) when cooled to a predetermined temperature (e.g., -5°C). The viscosity value of the thermochromic ink is preferably 500 to 2000 mPa·s at 25°C and a shear rate of 3.83 / s, and 20 to 100 mPa·s at a shear rate of 383 / s. By setting the viscosity within the above range, an ink with excellent writing properties and stability over time can be obtained.

[0024] The joint 35 has a generally tubular shape and is made of synthetic resin containing marine plastic, and the rear end side of the outer periphery is press-fitted into the ink containing pipe 31. The tip side of the joint 35 is provided with a receiving portion for receiving the writing side pipe 33. The joint 35 of the ink containing pipe 31 has a circumferential crimped portion 36a formed on the outer periphery of the ink containing pipe 31, and partial crimped portions 36b formed by inward protrusions at three locations on the outer periphery, thereby ensuring reliable sealing performance.

[0025] The tail plug 37 contains a styrene-based elastomer selected from the group consisting of styrene-ethylene-propylene-styrene (SEPS) in which styrene is replaced with p-methylstyrene, styrene-ethylene-ethylene-propylene-styrene (SEEPS) in which styrene is replaced with p-methylstyrene, and styrene-ethylene-butadiene-styrene (SEBS) in which styrene is replaced with p-methylstyrene, and has a compression set at 120°C of 80% or less and a durometer A hardness of 60 to 98, so that it can be effectively used as an eraser for thermochromic ink, which is preferable. The styrene-based elastomer means an elastomer containing a styrene structural unit in the main chain, and is typically a thermoplastic elastomer. From the viewpoint of easily achieving the desired 120°C compression set and durometer A hardness, the styrene-based elastomer is preferably a block copolymer having a polymer block mainly composed of structural units derived from a styrene skeleton-containing compound and a polymer block mainly composed of structural units derived from a conjugated diene compound (hereinafter referred to as a styrene-based block copolymer), or a hydrogenated product of the block copolymer, or a mixture thereof. The polymer block mainly composed of structural units derived from a styrene skeleton-containing compound (or a conjugated diene compound) means a polymer block in which the structural units present in the highest mass proportion in the polymer block are structural units derived from a styrene skeleton-containing compound (or a conjugated diene compound). [Industrial Applicability]

[0026] INDUSTRIAL APPLICABILITY The present invention is a stationery package for storing stationery such as writing implements and writing refills, and is an invention with industrial applicability. [Explanation of symbols]

[0027] 1 Stationery packaging 11 Sheet Material 12 Sheet Material 13 Space section 14 Crimping section 15 Insertion hole 16 Cutting line 17 Notch 18 Pulling section 19 Corner 30 Writing instrument refills A Intersection angle

Claims

1. A stationery package capable of storing stationery such as writing implements, characterized in that a perforation line is provided on the surface of the package and a notch is formed at the end of the perforation line at the end of the package.

2. 2. The stationery package according to claim 1, wherein the cut-out portion has a mountain shape with one side being an extension of the cut line when viewed from above, and the intersection angle A between the one side and the other end is 90 degrees.

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