Packaging material, packaging body, packaging method, and method for manufacturing a packaging body.

Abstract

Improvement of packaging materials and packaging bodies. [Solution] A packaging material (100) for packaging a brush or paintbrush (60), comprising a flat plate member (10) and a shrink film (20), wherein the flat plate member (10) has a cut line (3) and a bendable straight line (4), and the section enclosed by the cut line (3) and the straight line (4) can stand upright relative to the surface (1) to form an upright portion (5), and at least one upright portion (5) can face the tip surface (601) of the bristles of the brush or paintbrush (60) while standing upright relative to the surface (1). A packaged body (200) using the packaging material (100).

Description

Technical Field

[0001] The present invention relates to a packaging material, a package, a packaging method, and a manufacturing method of a package. Specifically, the present invention relates to a packaging material, a package, and a shrink packaging method and a manufacturing method of a shrink package used for packaging a brush or bristles.

Background Art

[0002] In scenes such as cleaning, cooking, makeup, handicrafts, construction work, art production, and maintenance of clothing accessories, various brushes and bristles are used. Although the dimensional shapes and materials of brushes and bristles vary depending on the application, they are common in that they are composed of hairs and handles. The part where the hairs are implanted is called the head, the part of the handle is called the handle, and the joint between the head and the handle is sometimes called the neck. Since both "brush" and "bristle" in Japanese are called "brush" in English, there is no difference between "brush" and "bristle" in a broad sense. However, in consideration of the traditional manufacturing method of Japanese bristles, "brush" and "bristle" may be distinguished in Japanese. In this case, generally, an object obtained by dividing the handle material and sandwiching the hair material at the divided part and tightening it with wire, thread, etc. is called a bristle, and an object obtained by making holes in a plate-shaped holding material and implanting hairs is called a brush with the head.

[0003] Of all brushes, toothbrushes are a necessity for modern people of all ages. Approximately 450 million toothbrushes are produced annually in Japan, and the majority are distributed individually packaged. The packaging used for individual toothbrushes needs to maintain the shape of the toothbrush, be durable and lightweight, and prevent the intrusion of dirt and dust. Furthermore, packaging for retail stores needs to be compact enough to be displayed in a small space, easy for customers to understand the shape and color of the toothbrush, and easy to read the instructions about the toothbrush. To meet these requirements, blister packaging as described in Patent Documents 1 and 2, boxes as described in Patent Document 3, and skin packs as described in Patent Document 4 are widely used as toothbrush packaging. In addition to these, Patent Documents 5 and 6 propose film bags, and Patent Document 7 proposes packaging that uses both blister packs and shrink film.

[0004] Each type of packaging has its advantages and disadvantages. Blister packs improve both the visibility of the toothbrush product and its protection through the precise design of the cover, but this makes them difficult to fold or stack when disposing of the packaging, leading to increased waste in typical households. Packaging boxes offer excellent storage, but it is difficult for consumers to see the entire toothbrush product before opening. Skin packs offer good visibility of the toothbrush product and its instructions, and also provide excellent shape retention for the toothbrush, but they usually require tools such as scissors or a cutter to open, which can cause consumer dissatisfaction. In contrast to these relatively sturdy packaging types, bag-type packaging contributes to waste reduction, but there are concerns about the possibility of deformation or damage to the brush part due to external pressure and stacking of bags.

[0005] Thus, a type of individual toothbrush packaging that combines the various performance requirements while also contributing to waste reduction has yet to be found.

[0006] Many brushes and paintbrushes other than toothbrushes are also sold in individual packaging. The requirements and problems associated with individual packaging for toothbrushes mentioned above also apply to other brushes and paintbrushes that are individually packaged. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2002-211639 [Patent Document 2] Japanese Patent Publication No. 2023-006108 [Patent Document 3] Utility Model Registration No. 3238923 Gazette [Patent Document 4] Japanese Patent Publication No. 2014-114045 [Patent Document 5] Japanese Patent Application Publication No. 4-072160 [Patent Document 6] Japanese Patent Application Publication No. 8-301342 [Patent Document 7] Japanese Patent Publication No. 2014-169123 [Overview of the project] [Problems that the invention aims to solve]

[0008] There is still room for improvement in packaging materials for brushes and paintbrushes that possess various properties such as shape stability, lightness, airtightness, the ability to be displayed in narrow spaces, clear visibility of product labeling, and reduced waste volume when disposed of. The inventors have sought packaging materials and packaging bodies that possess the above-mentioned properties in a well-balanced manner for use in packaging brushes and paintbrushes. [Means for solving the problem]

[0009] As a result, the inventors have found that in a packaging material comprising a flat plate member and shrink film, by providing the flat plate member with an upright portion facing the tip surface of a brush or paintbrush bristles, the requirements for individual packaging described above can be achieved in a balanced manner despite the simple structure of the packaging material. In other words, the present invention is as follows.

[0010] (Invention 1) A packaging material (100) comprising a flat plate member (10) and a shrink film (20), used for packaging a brush or paintbrush (60), The flat plate member (10) has a notch line (3) that extends along the surface (1) and back surface (2) of the flat plate member (10) and penetrates the surface (1) and back surface (2). Both the one endpoint (301) and the other endpoint (302) of the cut line (3) are not located at the end (11) of the flat plate member (10). The straight line (4) connecting one endpoint (301) and the other endpoint (302) of the cut line (3) is bendable, and by bending the straight line (4) so ​​that it forms a valley line with respect to the surface (1), the section enclosed by the cut line (3) and the straight line (4) can stand upright with respect to the surface (1) and form an upright portion (5). At least one upright portion (5) Having an area of ​​more than half of the tip surface (601) of the bristles of the brush or paintbrush (60), and being able to face the tip surface (601) of the bristles of the brush or paintbrush (60) in an upright position relative to the surface (1), Packaging materials (100).

[0011] (Invention 2) The packaging material (100) of Invention 1, further comprising a suspension member (40) and / or a display member (50).

[0012] (Invention 3) Packaging material (100) of Invention 1, used for packaging a toothbrush (61).

[0013] (Invention 4) A packaging body (200) for a brush or paintbrush (60), comprising a flat plate member (10) and a shrink film (20), The flat plate member (10) An incision line (3) that extends along the front surface (1) and the back surface (2) of the flat member (10) and penetrates the front surface (1) and the back surface (2), and a straight line (4) that connects one end point (301) and the other end point (302) of the incision line (3) and is a folding valley line with respect to the front surface (1) enclose a section that forms a standing portion (5) by standing up with respect to the front surface (1). However, both the one end point (301) and the other end point (302) of the incision line (3) are not located at the end portion (11) of the flat member (10). At least one of the standing portions (5) has an area of more than half of the tip end face (601) of the hair portion of the brush or bristles (60) and faces the tip end face (601) of the hair portion of the brush or bristles (60) in a state of standing up with respect to the front surface (1). The package (200).

[0014] (Invention 5) The package (200) according to Invention 4, wherein the packaging material (100) further includes a suspension member (40) and / or a display member (50).

[0015] (Invention 6) The package (200) according to Invention 4, in which a toothbrush (61) is stored.

[0016] (Invention 7) A shrink packaging method for a brush or bristles (60) using a flat member (10) and a shrink film (20), wherein the flat member (10) has an incision line (3) that extends along the front surface (1) and the back surface (2) of the flat member (10) and penetrates the front surface (1) and the back surface (2), both the one end point (301) and the other end point (302) of the incision line (3) are not located at the end portion (11) of the flat member (10), the straight line (4) connecting the one end point (3) and the other end point (302) of the incision line (3) is foldable, and by folding the straight line (4) so as to be a valley line with respect to the front surface (1), the section surrounded by the incision line (3) and the straight line (4) can stand up with respect to the front surface (1) to form a standing portion (5). At least one standing portion (5) is It has an area of more than half of the tip surface (601) of the hair portion of the brush or bristles (60), and can face the tip surface (601) of the hair portion of the brush or bristles (60) in a standing state with respect to the surface (1). Shrink wrapping method for a brush or bristles (60).

[0017] (Invention 8) A method for manufacturing the package (200) of Invention 4, which performs the following steps 1, step 2, step 3, step 4, step 5, and step 6 in this order. Step 1: A step of forming a cut line (3) that extends along the front surface (1) and the back surface (2) of the flat plate member (10) and penetrates the front surface (1) and the back surface (2). Step 2: A step of folding the straight line (4) connecting one end point (301) and the other end point (302) of the cut line (3) so as to be a valley line with respect to the front surface (1) to form a standing portion (5). Step 3: A step of loading the brush or bristles (60) on the flat plate member (10). Step 4: A step of opposing the tip surface (601) of the hair portion of the brush or bristles (60) to the standing portion (5). Step 5: A step of covering the flat plate member (10) and the brush or bristles (60) with a shrink film (20). Step 6: A step of thermally shrinking the shrink film (20).

Effect of the Invention

[0018] With the packaging material (100) of the present invention, when packaging a brush or bristles, the brush or bristles can be positioned without deforming the hair portion of the brush or bristles. The package (200) of the present invention has a simple member configuration, so it is easy to open, separate from the product, and separately collect. Moreover, the package (200) of the present invention is lightweight and does not take up much space, and does not require much space for displaying and storing the product. In addition, the package (200) of the present invention has good visibility of the product and the display. The shrink wrapping method of the present invention can provide a package (200) having the above-mentioned various performances by using the packaging material (100).

Brief Description of the Drawings

[0019] [Figure 1] An example of a flat plate member (10) is schematically shown. This is a view of the surface (1) of the flat plate member (10) from above. [Figure 2] The relationship between the flat plate member (10) and the brush or paintbrush (60) (toothbrush 61) is schematically shown. This is a view of the surface (1) of the flat plate member (10) from above. [Figure 3] This diagram schematically shows how the toothbrush (61) is positioned on the surface (1) of the flat plate member (10). This is a view of the surface (1) of the flat plate member (10) from above. [Figure 4] Figure 3 schematically shows the flat plate member (10) and the toothbrush (61) as viewed from side A in the direction of the arrow. The front surface (1) and back surface (2) of the flat plate member (10) are shown as viewed from the side. [Figure 5] The relationship between the area of ​​the upright portion (51) and the area of ​​the tip (601) of the bristles (61) of the toothbrush is schematically shown in Figure 4. [Figure 6] A schematic example of packaging (200) is shown. This is a view of packaging (200) from above. [Figure 7] A schematic example of packaging (200) is shown. This is a side view of packaging (200). [Figure 8] Another example of the flat plate member (10) is schematically shown. This is a view of the flat plate member (10) from above. [Figure 9] A schematic diagram illustrates how the upright portions (51, 52, 53) are formed on the flat plate member (10). [Figure 10] A schematic diagram illustrates how the upright portions (51, 52, 53) are formed on the flat plate member (10). [Figure 11] This diagram schematically shows how the brush (60) (cooking brush 62) is positioned on the surface (1) of the flat plate member (10). This is a view of the flat plate member (10) from above. [Figure 12] A schematic diagram shows the flat plate member (10) and the painting brush (62) as viewed from side B in Figure 11, in the direction of the arrow. This is a side view of the flat plate member (10). [Figure 13]Another example of the packaging (200) is schematically shown. This is a top view of the packaging (200). [Figure 14] Another example of the packaging (200) is schematically shown. This is a side view of the packaging (200). [Figure 15] A reference diagram to help understand packaging material (100). [Figure 16] A magnified view of a portion of Figure 7. [Figure 17] A magnified view of a portion of Figure 14. [Modes for carrying out the invention]

[0020] [Packaging material (100)] The packaging material (100) of the present invention includes a flat plate member (10) and a shrink film (20). The flat plate member (10) may or may not have the cut lines (3) described later folded inwards. The shape of the shrink film (20) constituting the packaging material (100) is not limited.

[0021] Figure 15 is a reference diagram for understanding the relationship between the packaging material (100), the flat plate member (10), and the shrink film (20). For convenience, Figure 15 shows the state of the flat plate member (10) before the notched line (3), which will be described later, is folded in a valley fold. For convenience, Figure 15 shows the shrink film (20) in a roll-shaped package.

[0022] The packaging material (100) of the present invention is a packaging material used for packaging brushes or paintbrushes (60). There are no restrictions on the brushes or paintbrushes (60), and it generally refers to all tools that have a long member called a "handle" with a bristle section consisting of many bristles attached to the end. The brushes or paintbrushes (60) may be traditional brushes with relatively long and flexible bristles, or brushes with relatively short and stiff bristles. Brushes or paintbrushes (60) are generally brushes or paintbrushes used for tasks such as cleaning, cooking, makeup, crafts, construction, art production, and clothing care. Examples of brushes or paintbrushes (60) include toothbrushes (61) and cooking brushes (62) for applying liquid food ingredients such as sauces and egg washes. The parts of the packaging material (100) will be described below.

[0023] [Flat plate member (10)] The flat plate member (10) has a nearly flat surface (1) and a back surface (2). Typically, the dimensions and shape of the surface (1) and the back surface (2) are the same (geometrically congruent). The material of the flat plate member (10) is not limited as long as it is resistant to deformation during the shrink packaging process and easily forms the raised portion (5) described later. Generally, paper, plastics, or composites thereof can be used as the flat plate member (10). Generally, the flat plate member (10) is made of paper. The surface condition of the flat plate member (10) can be coated paper, glossy paper, etc. The thickness of the flat plate member (10) is not particularly limited. Generally, the thickness of the flat plate member (10) is around 1 mm, preferably 0.5 mm to 2 mm, and more preferably 0.8 mm to 1.5 mm. Surface treatment agents such as so-called coating agents may be applied to the surface (1) and / or the back surface (2).

[0024] The packaging material (100) is designed to be used in which the brush or paintbrush (60) is positioned on the surface (1) of the flat plate member (10) such that the handle of the brush or paintbrush (60) extends along the surface (1) (the brush or paintbrush (60) is laid flat) and the entire brush or paintbrush (60) is located on the upper part of the surface (1) (the brush or paintbrush (60) does not protrude from the surface (1)). The shape, dimensions, and material of the flat plate member (10) are not restricted as long as the flat plate member (10) does not deform when the flat plate member (10) and the brush or paintbrush (60) are covered with shrink film (20) in this manner, and the packaging body (200) described later has sufficient strength to withstand transport, suspension, and loading.

[0025] The shape of the flat plate member (10) is generally square, preferably rectangular. In other words, the front surface (1) and the back surface (2) are generally congruent squares, preferably congruent rectangles. In the packaging body (200) described later, the end of the brush or paintbrush (60) does not reach the end (11) of the flat plate member (10) (it does not protrude outside the flat plate member (10) from the end (11)). For this reason, if the maximum length of the brush or paintbrush (60) is L1 and the maximum width is L2, the long side of the flat plate member (10) is made sufficiently longer than L1 (preferably several millimeters to several centimeters), and the short side of the flat plate member (10) is made sufficiently longer than L2 (preferably several millimeters to several centimeters).

[0026] [Cutting line (3)] The flat plate member (10) has a cut line (3). The cut line (3) extends along the front surface (1) and the back surface (2) and penetrates both the front surface (1) and the back surface (2). However, neither one endpoint (301) nor the other endpoint (302) of the cut line (3) is located at the end (11) of the flat plate member (10). That is, the cut line (3) starts and ends on the surface of the flat plate member (10) excluding the end (11). If the flat plate member (10) is viewed from above from the front surface (1) or the back surface (2) and the cut line (3) appears to form, for example, three sides of a rectangle, then none of these three sides reach the end (11) of the flat plate member (10), and the rectangle is located at a reasonable distance from the end (11). The cut line (3) does not reach the end (11) of the flat plate member (10), nor is it a crack in the flat plate member (10).

[0027] [Standing part (5)] The straight line (4) connecting one endpoint (301) and the other endpoint (302) of the cut line (3) is bendable. By bending the straight line (4) so ​​that it forms a valley line with respect to the surface (1), the section enclosed by the cut line (3) and the straight line (4) can stand upright with respect to the surface (1) and form an upright portion (5).

[0028] The formation of the upright portion (5) can be easily understood by considering the straight line (4) as a hinge, and the section that corresponds to the door, i.e., the section enclosed by the cut line (3) and the straight line (4), as if it were springing up from the surface (1). When the flat plate member (10) is viewed from above from the surface (1) or back (2) side, if the cut line (3) appears to form, for example, the three sides of a rectangle, then the cut line (3) is folded inwards, causing the rectangular door enclosed by the cut line (3) and the straight line (4) to spring up from the surface (1) using the straight line (4) as a hinge, and the rectangular upright portion (5) appears.

[0029] Multiple upright portions (5) may be provided on the flat plate member (10). In this case, the shape and dimensions of each upright portion (5) may be the same or different.

[0030] When packaging a brush or paintbrush (60) with a straight (4) packaging material (100), first create one or more upright portions (5) on a flat plate member (10), position the brush or paintbrush (60) along the upright portions (5), and then cover the flat plate member (10) and the brush or paintbrush (60) with shrink film (20).

[0031] The packaging material (100) may be in a state where the straight line (4) is not valley-folded and both the front surface (1) and the back surface (2) are flat (in this case, the upright portion (5) is connected to the front surface (1) and the back surface (2) with the cut line (3) in between), or it may be in a state where the straight line (4) is valley-folded and the upright portion (5) is formed.

[0032] At least one upright portion (5) faces the tip surface (601) of the bristles of the brush or paintbrush (60) in an upright position relative to the surface (1). Here, "tip surface" refers to the surface formed by the open tip of the bristles of the brush or paintbrush (60). The tip of the bristle at the very end of the bristles of the brush or paintbrush (60) corresponds to the end of the tip surface (601). In other words, when the head of the brush or paintbrush (60) is viewed from the bristle tip, the area where the bristles grow is the tip surface (601).

[0033] In the packaging (200) described later, at least one upright portion (5) can support the tip surface (601) of the bristles. The upright portion (5) supporting the tip surface (601) helps to position the entire brush or paintbrush (60). It is also possible to provide an upright portion (5) that helps to position the entire brush or paintbrush (60) without facing the tip surface (601).

[0034] Therefore, the flat plate member (10) has at least one notch line (3) for forming an upright portion (5) that faces the tip surface (601) of the bristles, and optionally there are notches (3) for forming an upright portion (5) that does not face the tip surface (601). Multiple notches (3) may be formed so that the upright portions (5) face the tip surface (601).

[0035] In order to reliably position the upright portion (5) and the flat plate member (10) in a desired state relative to the tip surface (601) of the bristles, the area of ​​at least one upright portion (5) facing the tip surface (601) of the bristles should be at least half the area of ​​the tip surface (601) of the brush or paintbrush (60). When multiple adjacent upright portions (5) are positioned facing the tip surface (601), the total area of ​​the multiple adjacent upright portions (5) should be at least half the area of ​​the tip surface (601).

[0036] Multiple upright sections (5) can be arranged opposite a relatively large bristle tip surface (601). For example, as shown in Figures 10 and 13, two nearly identical upright sections (51) can be arranged opposite the bristle tip surface (601) of a relatively large cooking brush (62). Multiple upright sections (5) of nearly the same dimensions and shape can be arranged as in this example, or multiple upright sections (5), including two that are not identical in dimensions and shape, can be arranged opposite the bristle tip surface (601).

[0037] The upright portions (5) facing parts of the brush or paintbrush (60) other than the tip surface (601) of the bristles may also consist of multiple upright portions (5), including two that are identical or different in size and shape. The positions of these multiple upright portions (5) are appropriately determined according to the size and shape of the brush or paintbrush (60).

[0038] In short, the number, position, dimensions, and shape of the upright portions (5) are not limited, as long as they are formed by the notches (3) that satisfy the above-mentioned conditions and serve to position and support the brush or paintbrush (60).

[0039] When multiple adjacent upright portions (5) are positioned facing the tip surface (601) of the bristles, the ratio of the total area of ​​the multiple adjacent upright portions (5) to the area of ​​the tip surface (601) is generally set to 80% or more, preferably 90% or more. In this way, the shrink film (20) does not come into contact with the tip surface (601), and the brush or paintbrush (60) can be held by the packaging body (200) described later without the tip surface (601) of the bristles being deformed by the stress of the shrink film (20).

[0040] In the packaging material (100) used for packaging the toothbrush (61), for example, a single cut line (3) is formed along the longitudinal direction of the flat plate member (10) to form an upright portion (5) near the edge of the flat plate member (10) that faces the tip surface (601) of the bristles of the toothbrush (61).

[0041] As shown in Example 1 for packaging a toothbrush (61) and Example 2 for packaging a cooking brush (62) described later, preferably, the dimensions and shape of the upright portion (5) are made to correspond to the thickness and width of the brush or paintbrush (60) so that the upper end of the upright portion (5) (the end furthest from the surface (1)) is less likely to puncture the shrink film (20) after shrinkage.

[0042] Figure 16 is an enlarged view of Figure 7. For example, if the packaging (200) shown in Figure 7 is intended, the dimensions and shape of the upright portion (51) can be made to correspond to the thickness and width of the cooking brush (62), as shown in Figure 16. In this case, when the toothbrush (61) is wrapped in the packaging material (100), if the packaging (200) is viewed from the surface (1) side of the flat plate member (10), the outer surface of the shrink film (20): P1, the end or surface of the toothbrush (61) furthest from the surface (1) (highest position): P2, the upper end of the upright portion (51): P3, and the surface (1) of the flat plate member (10): P4 can be arranged in this order from the outside of the packaging (200) toward the flat plate member (10). In this case, the shrink film (20) presses the toothbrush (61) against the flat plate member with almost no contact with the upright portion (51). Therefore, the upright portion (51) is less likely to pierce the shrink film (20) from the inside of the packaging body (200).

[0043] Figure 17 is an enlarged view of Figure 14. For example, even when considering the packaging (200) shown in Figure 14, as shown in Figure 17, when viewing the packaging (200) from the surface (1) side of the flat plate member (10), the following can be arranged in order from the outside of the packaging (200) toward the flat plate member (10): the outer surface of the shrink film (20): P1, the end or surface of the cooking brush (62) furthest from the surface (1) (highest position): P2, the uppermost end of the upright parts (51, 52, 53): P3, and the surface (1) of the flat plate member (10): P4. In this case as well, the shrink film (20) presses the cooking brush (62) against the flat plate member with almost no contact with any of the upright parts (51, 52, 53) (the upright part 52 is on the far side of the paper and is not shown in Figures 14 and 17). Furthermore, as shown in Figure 14, the ends of the upright portions 52 and 53 are rounded. Therefore, the upright portions (51, 52, 53) are less likely to pierce the shrink film (20) from the inside of the packaging (200).

[0044] [Suspension member (40), display member (50)] The packaging material (100) may further include a suspension member (40) and / or a display member (50).

[0045] The suspension member (40) is a member for displaying the package (200) described later in a store, and includes hooks, rings, strings, notches, through holes, etc. The packaging material (100) may include adhesive members and connecting members for connecting the suspension member (40) and the flat plate member (10) and / or the shrink film (20).

[0046] The display member (50) is a member that allows consumers to see product information. The display member (50) may be a printed portion or printed layer on the flat member (10), or a member for attaching to the flat member (10) and / or the shrink film (20). The packaging material (100) may include adhesive members or connecting members for connecting the display member (50) and the flat member (10) and / or the shrink film (20).

[0047] [Shrink film (20)] As the shrink film (20), any heat-shrinkable film used as packaging material can be used without limitation. Examples of materials for the shrink film (20) include polyvinyl chlorides, polyvinylidene chlorides, polyolefins such as polypropylene resins and polyethylene resins, ethylene copolymers such as ethylene-vinyl acetate copolymers and ethylene-vinyl alcohol copolymers, polystyrenes, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as nylon 6,6, or heat-shrinkable films made from mixtures of these resins or compositions in which small amounts of elastomers or rubbers are blended.

[0048] Preferred resin materials for the shrink film (20) are linear low-density polyethylene, high-pressure low-density polyethylene, and ethylene-vinyl acetate copolymer saponified (ethylene-vinyl alcohol copolymer, EVA).

[0049] The shrink film (20) may contain additives such as antioxidants, UV absorbers, pigments, colorants, fillers, and flame retardants as appropriate. The shrink film (20) may be either a uniaxially oriented film or a biaxially oriented film. In this invention, a highly transparent shrink film (20) is preferred in order to improve the visibility of the brush or paintbrush (60). In order to obtain a package (200) with a good appearance that conforms to the shape of the flat member (10) and the brush or paintbrush (60), a shrink film (20) that exhibits the same thermal shrinkage rate in the length direction and width direction during film formation is preferred. For example, a shrink film is used in which the ratio of the shrinkage rate in the length direction (MD) to the shrinkage rate in the width direction (TD) at the shrinking temperature: MD / TD is generally 0.7 or more and 1.3 or less.

[0050] The shrink film (20) may be single-layered or multi-layered. A multi-layered shrink film (20) consisting of resin layers with different softening points (heat shrinkage temperatures) can also be used. The overall thickness of the shrink film (20) is generally 5 μm to 300 μm, preferably 10 μm to 100 μm, and more preferably 10 μm to 30 μm.

[0051] In this invention, the "Wrapler® V301" series of crosslinked polyolefin multilayer shrink film manufactured by Okura Industries Co., Ltd. is preferred as the shrink film (20) used. The "Wrapler® V301" series is a highly transparent polyolefin-based shrink film exhibiting a haze of approximately 3.0%. The heat shrinkage ratio MD / TD of the "Wrapler® V301" series at 120°C is in the range of 0.94 to 0.97. By using the "Wrapler® V301" series as the shrink film (20), a well-looking package can be obtained with good visibility of the stored product and with fewer wrinkles and unevenness.

[0052] [Package (200)] The packaging body (200) of the present invention is an integral form in which the above-described packaging material (100) is packaged with a brush or paintbrush (60).

[0053] The packaging (200) includes the flat plate member (10) and shrink film (20) described above. In the flat plate member (10), a section enclosed by a cut line (3) that extends along the surface (1) and back surface (2) of the flat plate member (10) and penetrates the surface (1) and back surface (2), and a straight line (4) that connects one endpoint (301) and the other endpoint (302) of the cut line (3) and is a fold valley line relative to the surface (1), stands upright relative to the surface (1). As a result, in the packaging (200), this upright section forms an upright portion (5). There may be one or more upright portions (5).

[0054] However, neither one endpoint (301) nor the other endpoint (302) of the cut line (3) is located at the end (11) of the flat plate member (10). In other words, neither of the upright portions (5) is in communication with the outside of the flat plate member (10).

[0055] At least one of the upright portions (5) has an area of ​​at least half the cross-sectional area of ​​the tip surface (601) of the bristles of the brush or paintbrush (60), and is positioned upright relative to the surface (1) and facing the tip surface (601) of the bristles of the brush or paintbrush (60).

[0056] The entire brush or paintbrush (60) can also be positioned by a single upright portion (5). In this case, the upright portion (5) faces the tip surface of the bristles (601), and the area of ​​the upright portion (5) is more than half the area of ​​the tip surface of the bristles (601), preferably approximately equal to or greater than the area of ​​the tip surface of the bristles (601).

[0057] The entire brush or paintbrush (60) can also be positioned by two or more upright portions (5). In this case, two or more adjacent upright portions (5) face the bristle tip surface (601) as a whole, and the combined area of ​​the two or more upright portions (5) occupies more than half of the cross-sectional area of ​​the bristle tip surface (601).

[0058] [Shrink wrapping method] The shrink packaging method of the present invention is a shrink packaging method for a brush or paintbrush (60) using the flat plate member (10) and shrink film (20) described above.

[0059] The method of covering the flat plate member (10) and the brush or paintbrush (60) with shrink film (20) can be any general shrink packaging method without limitation. Generally, L-shaped shrink or pillow shrink methods are followed, or these methods are adapted. General shrink packaging equipment can also be used without limitation.

[0060] In the packaging (200) for the toothbrush (61), the toothbrush (61) can be packaged with a flat plate member (10) having a rectangular upright portion (5) and a shrink film (20). In this case, the upright portion (5) may be just one upright portion (51). The upright portion (51) faces the tip surface (601) of the bristles of the toothbrush (61). The shrink film (20) covers the flat plate member (10) and the toothbrush (61), so that a portion or more of the toothbrush (61) is in close contact with the flat plate member (10).

[0061] In the packaging (200), a portion or more of the shrink film (20) may be heat-sealed to the flat plate member (10). In this case, the portion of the shrink film (20) that overlaps with the flat plate member (10) after heat shrinkage can be reheated to make it adhere tightly to the flat plate member (10). In this case, a layer that can be heat-sealed to an adjacent layer (a so-called heat-seal layer) can be placed on the surface (1) and / or back surface (2) of the flat plate member (10). Such a heat-seal layer generally consists of a layer made of various heat-sealable coatings or a layer made by drying this layer. The heat-seal layer is not limited as long as it has appropriate coating properties and adhesion to the flat plate member (10) and can be fused to the flat plate member (10) and the shrink film (20) within an appropriate temperature range. When the shrink film (20) is mainly made of polyolefin resin, for example, a heat-seal layer made of an olefin material can be formed.

[0062] For example, a portion of the packaging (200) can be provided as a heat-sealing area, having a layered structure of shrink film (20) / heat-sealable coating / surface (1) / heat-sealable coating / backside (2) / shrink film (20). By heating this area, the flat plate member (10) and the shrink film (20) can be firmly fixed together.

[0063] Furthermore, by heat-sealing a portion or more of the shrink film (20) to the flat plate member (10), any excess gap between the shrink film (20) and the flat plate member (10) can be eliminated. As a result, movement of the brush or paintbrush (60) and deformation of the bristles can be prevented inside the packaging body (200).

[0064] The packaging (200) used for products that are hung in stores, such as toothbrushes (61), may have a hook as a suspension member (40) for attaching to a suspension rod in the store. In this case, a label indicating the type of bristles of the toothbrush (61) (hard, soft, normal, etc.) can also be attached to the surface (1) of the flat member (10) as a display member (50). A price tag or a message label ("Price Reduced," etc.) can also be attached to the outer surface of the shrink film (20) as another display member (50).

[0065] [Manufacturing method for packaging (200)] The method for manufacturing the packaging (200) of the present invention involves using the above-described packaging material (100) and performing the following steps 1, 2, 3, 4, 5, and 6 in that order.

[0066] Step 1: A step to form a cut line (3) that extends along the surface (1) and back surface (2) of the flat plate member (10) and penetrates the surface (1) and back surface (2).

[0067] Step 2: A step in which a straight line (4) connecting one endpoint (301) and the other endpoint (302) of the cut line (3) is bent so as to form a valley line with respect to the surface (1) to form an upright portion (5).

[0068] Step 3: A step of loading the brush or paintbrush (60) onto the flat plate member (10).

[0069] Step 4: The step of bringing the tip surface (601) of the bristles of the brush or paintbrush (60) to face the upright portion (5).

[0070] Step 5: A step of covering the flat plate member (10) and the brush or paintbrush (60) with shrink film (20).

[0071] Step 6: A step to heat-shrink the shrink film (20).

[0072] In each process, various types of equipment and facilities usable in the packaging field can be used without restriction.

[0073] [effect] The flat plate member (10) and shrink film (20) are thin, flat, and not bulky when removed from the brush or paintbrush (60). The flat plate member (10) and shrink film (20) can also be easily separated. Such packaging (200) is convenient for reducing and separating waste. [Examples]

[0074] Examples of the packaging material (100) and packaging body (200) of the present invention will be described with reference to Figures 1 to 14. Each figure is a schematic diagram for understanding examples of the present invention. Each figure contains exaggerations and omissions, and the actual dimensions and shapes are not accurately reproduced in each figure. In each figure, the bendable straight line (4) is shown as a dotted line. Dotted lines other than the straight line (4) represent lines that are actually hidden behind the flat plate member (10) or the upright parts (5, 51) and are not visible, as if seen through.

[0075] [Example 1] Example 1 is an example of packaging material (100) and packaging body (200) used for packaging a toothbrush (61). Example 1 will be explained below with reference to Figures 1 to 7.

[0076] In Example 1, a cardboard flat member (10) shown in Figure 1 is used. Here, cardboard with a thickness of 1 mm and no coating layer is used. Cut lines (3) corresponding to the three sides of a rectangle are made through the front (1) and back (2) surfaces (2) of the flat member (10). A straight line (4) connecting one endpoint (301) and the other endpoint (302) of the cut line (3) is bendable. The straight line (4) can be formed, for example, with a bendable perforation line or a groove line for valley folds.

[0077] As shown in Figure 2, the straight line (4) can be folded in a valley fold relative to the surface (1). When the straight line (4) is folded in a valley fold, the section enclosed by the cut line (3) and the straight line (4) opens up from the surface (1) in the direction of the arrow as an upright section (5). As a result, the part of the flat plate member (10) where the above section was located opens up like a window with a door.

[0078] As shown in Figures 2 and 3, a toothbrush (61) can be placed on the surface (1) of the flat plate member (10) such that the handle extends in the longitudinal direction, and the upright portion (5) can be positioned to face the tip surface (601) of the bristles of the toothbrush (61). In Example 1, a single upright portion (51) is formed on the flat plate member (10) that faces the tip surface (601) of the bristles.

[0079] Figures 4 and 5 show the state at this time as seen from side A in Figure 3 (from the side of the flat plate member (10)). As shown in Figures 4 and 5, the tip surface of the bristles (601) (the part enclosed by the dotted line in Figure 5) is behind the upright portion (51) and is not visible. As shown in Figure 5, the upright portion (51) is wider than the tip surface of the bristles (601). Therefore, even when the head of the toothbrush (61) approaches the upright portion (51), the bristles of the toothbrush (61) do not extend beyond the upright portion (51).

[0080] In Example 1, a commercially available product, "Wrapler® V301," a cross-linked polyolefin multilayer shrink film manufactured by Okura Industries Co., Ltd. (thickness: 19 μm, haze 3.4%, heat shrinkage ratio MD / TD at 120: 0.96), was used as the shrink film (20).

[0081] Figures 6 and 7 show the packaging (200) for the toothbrush (61). A flat plate member (10) on which the toothbrushes (61) are stacked is covered with a low-density polyethylene shrink film (20) with a thickness of 50 μm before shrinking, and the shrink film (20) is heated to shrink it. As a result, the toothbrushes (61) are pressed toward the flat plate member (10) by the shrink film (20). An L-shaped shrink method was used here. The seam of the shrink film (20) is on the back surface (2) and is not visible in the area shown in Figures 6 and 7.

[0082] As shown in Figure 7, the handle and head of the toothbrush (61) are in contact with the shrink film (20), so the corners of the upright portion (51) do not pierce the shrink film (20).

[0083] Furthermore, the ends (21) of the packaging body (200) in the longitudinal direction are sandwiched between sealing bars and passed through, and the shrink film (20) and the flat plate member (10) are heat-sealed. A heat-sealable coating agent (not shown) is pre-applied to the ends (21) of the flat plate member (10). After the heat sealing is completed, one end of the heat-sealed area (21) is perforated to form a ring-shaped suspension member (40).

[0084] In the packaging (200), the upright portion (51) and the shrink film (20) prevent the toothbrush (61) from moving in the width direction (across the handle). In the packaging (200), the shrink film (20) connected to the heat-sealed areas (21) at both ends prevents the toothbrush (61) from moving in the length direction (along the handle). As shown in Figures 6 and 7, when the toothbrush (61) is placed in the packaging (200), the flat plate member (10) is less likely to deform and the position of the toothbrush (61) is less likely to shift even when the packaging (200) is loaded, moved, or suspended.

[0085] As shown in Figures 2, 3, and 4, the product label (50) may be attached to the flat plate member (10) beforehand as a display element before shrink wrapping. As shown in Figures 6 and 7, the product label (50) is visible from the outside of the shrink film (20).

[0086] [Example 2] Example 2 is an example of packaging material (100) and packaging body (200) used for packaging a cooking brush (62). Example 2 will be explained below with reference to Figures 8 to 14.

[0087] In Example 2, the flat plate member (10) shown in Figure 8 is used. The material of the flat plate member (10) in Example 2 is the same as the cardboard used in Example 1. In Example 2 as well, cut lines (3) corresponding to the three sides of a rectangle are provided, penetrating the front surface (1) and back surface (2) of the flat plate member (10). A straight line (4) connecting one endpoint (301) and the other endpoint (302) of the cut line (3) is bendable. The straight line (4) may be formed by a perforated line or a groove.

[0088] In Example 2, the flat plate member (10) is provided with two notches (31) to form two upright portions (51) that face the tip surface (601) of the bristles of the cooking brush (62). The notches (31) are bend lines connecting one endpoint (3101) to the other endpoint (3102). The straight line (41) connecting the two endpoints (3101) is bendable.

[0089] In Example 2, the flat plate member (10) is provided with notches (32, 33) to form other upright portions (52, 53). Notch (32) is an arc connecting endpoint (3201) and the other endpoint (3202). The straight line (42) connecting endpoint (3201) and the other endpoint (3202) is bendable. Notch (33) is an arc connecting endpoint (3301) and the other endpoint (3302). The straight line (43) connecting endpoint (3301) and the other endpoint (3302) is bendable.

[0090] As shown in Figures 9 and 10, the straight lines (41, 42, 43) can be valley-folded relative to the surface (1). When straight line (41) is valley-folded, the section enclosed by the cut line (31) and straight line (41) opens from the surface (1) in the direction of the arrow as an upright section (51) facing the tip surface of the bristles (601). When straight line (42) is valley-folded, the section enclosed by the cut line (32) and straight line (42) opens from the surface (1) in the direction of the arrow as one of the upright sections (52) facing the boundary between the handle and head of the cooking brush (62). When straight line (43) is valley-folded, the section enclosed by the cut line (33) and straight line (43) opens from the surface (1) in the direction of the arrow as another upright section (53) facing the boundary between the handle and head of the cooking brush (62). Thus, as shown in Figure 10, the flat plate member (10) has openings for two square windows and two semicircular windows.

[0091] As shown in Figure 11, a cooking brush (62) can be placed on the surface (1) of the flat plate member (10) such that the handle extends in the longitudinal direction of the flat plate member (10), and the two upright portions (51) can be positioned to face the tip surface (601) of the bristles of the cooking brush (62).

[0092] Figure 12 shows the state at this time as seen from side B in Figure 11 (from the side of the bristle tip surface (601)). As shown in Figure 12, since the bristle tip surface (601) is located behind the surface that follows the upright portion (51), most of the bristle tip surface (601) is not visible. Even when the head of the cooking brush (62) is closest to the upright portion (51), most of the bristles of the cooking brush (62) do not extend beyond the surface that follows the upright portion (51). The entire cooking brush (62) is positioned by the upright portions (51), (52), and (53). In this way, the packaging (200) shown in Figure 12 can protect the entire relatively soft bristles of the cooking brush (62).

[0093] In Example 2, the same "Rapula® V301" used in Example 1 was used as the shrink film (20). Figures 13 and 14 show the packaging (200) for the cooking brushes (62). A flat plate member (10) on which the cooking brushes (62) are loaded is covered with a low-density polyethylene shrink film (20) with a thickness of 50 μm before shrinking, and the shrink film (20) is shrunk by heating. A pillow shrink method was adopted here. The seams of the shrink film (20) are on the back surface (2) and are not visible in the areas shown in Figures 13 and 14.

[0094] As a result, the shrink film (20) presses the cooking brush (62) toward the flat plate member (10). Since the bristles of the cooking brush (62) protrude from the upper end of the upright portion (51), the upper end of the upright portion (51) does not come into contact with the shrink film (20), and the shrink film (20) is not damaged by the corner of the upright portion (51). The upper ends of the upright portions (52) and (53) form an arc, so there is no risk of tearing the shrink film (20).

[0095] Furthermore, a hook-shaped suspension member (40) was attached to the end of the packaging body (200) via adhesive. The cooking brush (62) stored in the packaging body (200) shown in Figures 13 and 14 is less likely to deform or shift position even when the packaging body (200) is loaded, moved, or suspended.

[0096] As shown in Figures 13 and 14, a label (50) may be attached to the outer surface of the shrink film (20) as a display element after shrink wrapping. Another label can be attached on top of the display label (50). Such labels (50) are suitable for temporary displays such as "Price Reduced," "Recommended Item," and "Popular!". [Industrial applicability]

[0097] The packaging (200) for brushes or paintbrushes (60) using the packaging material (100) of the present invention provides a good balance of appropriate strength, stable product retention, lightness, and product visibility, and is also suitable for waste reduction and sorting. The present invention contributes to simple product packaging and can appeal to consumers in recent years. Furthermore, the present invention can save storage space and can contribute to improving the management efficiency of retail stores, accommodations, etc. Therefore, the present invention provides a groundbreaking product in the field of packaging materials and packaging containers. [Explanation of symbols]

[0098] 10 Flat plate member 11 End 1 surface 2 Back side 3 Cutting line 301 Endpoint 302 Endpoint 31 Cutting line 3101 Endpoint 3102 Endpoint 32 Cutting line 3201 Endpoint 3202 Endpoint 33 Cutting line 3301 Endpoint 3302 Endpoint 4. A straight line that can be bent. 41. A straight line that can be bent. 42 Bendable straight line 43. Bendable straight line 5 Standing part 51 Standing part 52 Standing part 53 Standing part 20 Shrink film 21 Thermocompression bonding area 40 Suspension components 50 Display components (labels) 100 Packaging materials 60 brushes or paintbrushes 601 Hair tip surface 61 Toothbrush 62 Cooking brush 200 packaging

Claims

1. A packaging material (100) comprising a flat plate member (10) and a shrink film (20), used for packaging a brush or paintbrush (60), The flat plate member (10) has a notch line (3) that extends along the surface (1) and back surface (2) of the flat plate member (10) and penetrates the surface (1) and back surface (2). Both the one endpoint (301) and the other endpoint (302) of the cut line (3) are not located at the end (11) of the flat plate member (10). The straight line (4) connecting one endpoint (301) and the other endpoint (302) of the cut line (3) is bendable, and by bending the straight line (4) so ​​that it forms a valley line with respect to the surface (1), the section enclosed by the cut line (3) and the straight line (4) can stand upright with respect to the surface (1) and form an upright portion (5). At least one upright portion (5) Having an area of ​​more than half of the tip surface (601) of the bristles of the brush or paintbrush (60), and being able to face the tip surface (601) of the bristles of the brush or paintbrush (60) in an upright position relative to the surface (1), Packaging material (100).

2. The packaging material (100) according to claim 1 further includes a suspension member (40) and / or a display member (50).

3. A packaging material (100) according to claim 1, used for packaging a toothbrush (61).

4. A packaging body (200) for a brush or paintbrush (60), comprising a flat plate member (10) and a shrink film (20), The flat plate member (10) The flat plate member (10) has a section enclosed by a cut line (3) that extends along the surface (1) and back surface (2) and penetrates the surface (1) and back surface (2), and a straight line (4) that connects one endpoint (301) and the other endpoint (302) of the cut line (3) and is a fold valley line relative to the surface (1), and this section is formed by standing upright relative to the surface (1), thereby creating an upright portion (5). However, both the one endpoint (301) and the other endpoint (302) of the cut line (3) are not located at the end (11) of the flat plate member (10). At least one of the upright parts (5) Having an area of ​​more than half of the tip surface (601) of the bristles of the brush or paintbrush (60), and facing the tip surface (601) of the bristles of the brush or paintbrush (60) in an upright position relative to the surface (1), Packaging body (200).

5. The packaging body (200) according to claim 4, wherein the packaging material (100) further includes a suspension member (40) and / or a display member (50).

6. A packaging body (200) according to claim 4, in which a toothbrush (61) is stored.

7. A shrink packaging method for a brush or paintbrush (60) using a flat plate member (10) and a shrink film (20), The flat plate member (10) has a notch line (3) that extends along the surface (1) and back surface (2) of the flat plate member (10) and penetrates the surface (1) and back surface (2). Both the one endpoint (301) and the other endpoint (302) of the cut line (3) are not located at the end (11) of the flat plate member (10). The straight line (4) connecting one endpoint (301) and the other endpoint (302) of the cut line (3) is bendable, and by bending the straight line (4) so ​​that it forms a valley line with respect to the surface (1), the section enclosed by the cut line (3) and the straight line (4) can stand upright with respect to the surface (1) and form an upright portion (5). At least one upright portion (5) Having an area of ​​more than half of the tip surface (601) of the bristles of the brush or paintbrush (60), and being able to face the tip surface (601) of the bristles of the brush or paintbrush (60) in an upright position relative to the surface (1), A method for shrink-wrapping a brush or paintbrush (60).

8. A method for manufacturing a package (200) according to claim 4, wherein the following steps 1, 2, 3, 4, 5, and 6 are performed in this order. Step 1: A step of forming a cut line (3) that extends along the surface (1) and back surface (2) of the flat plate member (10) and penetrates the surface (1) and back surface (2). Step 2: A step in which a straight line (4) connecting one endpoint (301) and the other endpoint (302) of the cut line (3) is bent so as to form a valley line with respect to the surface (1) to form an upright portion (5). Step 3: A step of loading the brush or paintbrush (60) onto the flat plate member (10). Step 4: The step of bringing the tip surface (601) of the bristles of the brush or paintbrush (60) to face the upright portion (5). Step 5: A step of covering the flat plate member (10) and the brush or paintbrush (60) with shrink film (20). Step 6: A step of heat-shrinking the shrink film (20).

Images